Release 1.0.36-2 for unstable

Closes: #973233

COPYING

@@ -1,4 +1,4 @@
-Copyright (C) 1998-2013 Ivo Timmermans, Guus Sliepen and others.
+Copyright (C) 1998-2019 Ivo Timmermans, Guus Sliepen and others.
 See the AUTHORS file for a complete list.
 
 This program is free software; you can redistribute it and/or modify it under

ChangeLog

@@ -1,3 +1,365 @@
+Version 1.0.36                                            August 26 2019
+------------------------------------------------------------------------
+
+Guus Sliepen (8):
+      Remove the call to RAND_load_file().
+      Update THANKS.
+      Backport tinc 1.1's str2net() function.
+      Update THANKS.
+      Fix spelling errors found by codespell.
+      Reformat all code using astyle.
+      Add a missing check for a pathname being too long.
+      Releasing 1.0.36.
+
+Rosen Penev (2):
+      Fix compilation when OpenSSL has no ENGINE support
+      Fix compilation without deprecated OpenSSL APIs
+
+Quentin Rameau (1):
+      Double-quote nodes in graphviz network file
+
+Werner Schreiber (1):
+      Fix segfault when dest->mtu is 0.
+
+Version 1.0.35                                           October 05 2018
+------------------------------------------------------------------------
+
+Guus Sliepen (12):
+      Prevent oracle attacks (CVE-2018-16737, CVE-2018-16738)
+      Prevent a MITM from forcing a NULL cipher for UDP (CVE-2018-16758)
+      Check the return value from snprintf().
+      Check the return values from BN_hex2bn() and RAND_load_file().
+      Fix all warnings when compiling with -Wall -W -pedantic.
+      Fix two small memory leaks.
+      Don't check for NULL-pointers before calling free().
+      Update THANKS.
+      Fix checks for Cygwin-related macros.
+      Fix spelling errors.
+      Update README and links to required libraries.
+      Releasing 1.0.35.
+
+AMRI Amine (1):
+      Fixing typo
+
+Rafael Sadowski (1):
+      OpenBSD has a proper tap device.
+
+Version 1.0.34                                              June 12 2018
+------------------------------------------------------------------------
+
+Guus Sliepen (10):
+      Add missing thanks to the NEWS message.
+      Fix building documentation when using OpenBSD's make.
+      Fix #ifdefs that were broken due to commit d178b58.
+      Don't use SOL_IP and SOL_IPV6.
+      Make systemd service file handling identical to tinc 1.1.
+      Rename distro/ to systemd/.
+      Document how to enable tinc at boot time using systemd.
+      Fix all spelling errors found by codespell.
+      Properly implement tinc.texi's dependency on tincinclude.texi.
+      Releasing 1.0.34.
+
+Maximilian Stein (1):
+      Fix SEGFAULT when trying to connect to IPv6 peer in non-IPv6 environment
+
+wangliushuai (1):
+      Remove redundant 'break'.
+
+Version 1.0.33                                          November 04 2017
+------------------------------------------------------------------------
+
+Guus Sliepen (31):
+      Udpate THANKS.
+      Fix a potential memory leak.
+      Use AC_CONFIG_MACRO_DIR().
+      Give absolute path for #include to AC_CHECK_HEADERS().
+      Prepare for automatic code formatting using Artistic Style.
+      Never remove items from cmdline_conf.
+      Use stack-allocated strings for temporary filenames.
+      Fix a few minor memory leaks.
+      Remove unused/obsolete checks from configure.ac.
+      Use getcwd() instead of get_current_dir_name().
+      Remove xmalloc.c, backport xalloc.h from tinc 1.1.
+      Update all header guards.
+      Convert sizeof foo to sizeof(foo).
+      Reformat all code using astyle.
+      Don't call ERR_remove_state().
+      Unconditionally include stdbool.h and inttypes.h.
+      Remove more obsolete autoconf checks.
+      Remove obsolete m4/README.
+      Fix some "make distcheck" errors.
+      Add some information about the requirements of a chroot environment.
+      Handle tun/tap device returning EPERM or EBUSY.
+      Disable PMTU discovery when TCPOnly is used.
+      Fix all -Wall -W compiler warnings.
+      Realign comments.
+      Remove unused functions.
+      Ensure all parameters have names in header files.
+      Support autoconf's --runstatedir option.
+      Const correctness.
+      Fix compilation errors when --enable-uml is used.
+      Update THANKS.
+      Releasing 1.0.33.
+
+Rafael Sadowski (1):
+      fix tinc.conf for OpenBSD
+
+nemunaire (1):
+      Allow compilation from a build directory
+
+Version 1.0.32                                         September 02 2017
+------------------------------------------------------------------------
+
+Guus Sliepen (13):
+      Don't dereference myself->incipher if it's NULL.
+      Merge remote-tracking branch 'VittGam/master'
+      Use /dev/udp instead of /dev/ip on Solaris.
+      Use getmsg()/putmsg() instead of read()/write() on Solaris.
+      Fix Solaris DeviceType = tap in router Mode.
+      Bind outgoing TCP sockets.
+      Move logging of "would block" messages to debug level 4.
+      Set KillMode=mixed in the systemd service file.
+      Don't forget about outgoing connections on host file read errors.
+      Fix Proxy = exec.
+      Set status.proxy_passed early for Proxy = exec.
+      Don't try to bind Proxy = exec sockets to an address.
+      Releasing 1.0.32.
+
+Vittorio Gambaletta (VittGam) (1):
+      route: Support ToS/DiffServ priority inheritance when routing IPv6 packets.
+
+Version 1.0.31                                           January 15 2017
+------------------------------------------------------------------------
+
+Guus Sliepen (1):
+      Releasing 1.0.31.
+
+Élie Bouttier (1):
+      Remove ExecStop in tinc@.service
+
+Version 1.0.30                                           October 30 2016
+------------------------------------------------------------------------
+
+Guus Sliepen (11):
+      Allow non-empty lines after status code from a HTTP proxy.
+      Fix proxy reply parsing broken by the previous commit.
+      Log only the first line of a proxy request rejection message.
+      Delay sending the real ID request until after a proxy request is granted.
+      Use AES256 and SHA256 by default, also for the meta-connections.
+      Enforce maximum amount of bytes sent/received on meta-connections.
+      Fix bit shifting arithmetic so the code actually does what the last commit message says.
+      Really fix byte budget calculation.
+      Use AES in CTR mode instead of OFB mode for meta-connections.
+      Use CFB mode for meta-connections to improve security.
+      Releasing 1.0.30.
+
+Version 1.0.29                                           October 09 2016
+------------------------------------------------------------------------
+
+Guus Sliepen (11):
+      Preserve IPv6 scope_id in edges.
+      Ensure compatibility with OpenSSL 1.1.0.
+      Add -Wall to CFLAGS.
+      Check return value of RSA_generate_key_ex().
+      Force nul-termination of strings after vsnprintf().
+      Log warnings about dropped packets only with debug level 5 or higher.
+      Add a copy of ax_append_flag.m4.
+      Add ax_require_defined.m4.
+      Fix possibly unitialized variable.
+      Fix compiler warnings about format string errors on BSD.
+      Releasing 1.0.29.
+
+Version 1.0.28                                             April 10 2016
+------------------------------------------------------------------------
+
+Guus Sliepen (8):
+      Fix compiling bsd/device.c on systems without utun.
+      Really remove use of __DATE__ and __TIME__ to facilitate reproducible builds.
+      Add systemd service files.
+      Update .gitignore.
+      Ensure the service files are in the tarball.
+      Explicitly mention that LibreSSL can be used as well.
+      Update links in the documentation.
+      Releasing 1.0.28.
+
+Version 1.0.27                                             April 10 2016
+------------------------------------------------------------------------
+
+Guus Sliepen (26):
+      Add missing AM_PROG_CC_C_O to configure.ac.
+      Attribution for various contributors.
+      Update "now" after connect() when making outgoing connections.
+      Add ability to use proxies to connect to hostnames when there is no nameserver.
+      Only add a reflexive address when we're sure it's working.
+      Fix compatibility with TAP-Win32 9.0.0.21 and later.
+      Fix warnings from the Clang Static Analyzer.
+      Improve performance of edge updates.
+      Clarify that scripts are called synchronously.
+      Small fixes for the documentation.
+      Add warnings for bad combinations of Device and Interface.
+      Fix forwarding of edge updates.
+      Don't compile getopt*.c if the system provides getopt_long().
+      Update .gitignore.
+      Update THANKS.
+      Use iface instead of interface.
+      Update copyright notices.
+      Remove use of __DATE__ and __TIME__ to facilitate reproducible builds.
+      Cast 0xff to char before comparing it to another char.
+      Get rid of a warning when compiling tinc using MinGW.
+      Every BSD flavor has a tap device nowadays.
+      Use devname() if available to support devfs cloning on BSD.
+      Use SIOCGIFADDR on BSDs that support it.
+      Enable silent builds by default.
+      Add support for OS X utun interfaces.
+      Releasing 1.0.27.
+
+Vittorio Gambaletta (VittGam) (6):
+      Fix DecrementTTL option.
+      Fix source IP address for ICMP unreachable packets generated by tinc.
+      Try to reply with node address only when decrementing the TTL.
+      Fix DecrementTTL option for packets destined to the local node.
+      s/broadcast_packet_helper/route_broadcast/
+      Remove forward declaration for do_decrement_ttl.
+
+LunarShaddow (3):
+      fix typo
+      re-arrange include sequence to avoid a mingw introduced bug.
+      Proofing README.
+
+Florian Weik (1):
+      Fix NAME variable in subnet-* scripts for local subnets.
+
+Nathan Stratton Treadway (1):
+      Fix invalid checksum generation.
+
+Version 1.0.26                                              July 05 2015
+------------------------------------------------------------------------
+
+Guus Sliepen (14):
+      Use VittGam's real name.
+      Attribution for Saverio Proto.
+      Always call res_init() before getaddrinfo().
+      Fix --logfile without a filename on Windows.
+      Never call putenv() with data on the stack.
+      Return non-zero exit code when encountering configuration errors during startup.
+      Fix autoconf check for function attributes.
+      Fix spelling of FORTIFY_SOURCE.
+      Update copyright notices.
+      Attribution for various contributors.
+      Only check for -fno-strict-overflow if -fwrapv does not work.
+      Fix unputenv() on Windows.
+      Don't try to call res_init() if ./configure told us it doesn't exist.
+      Releasing 1.0.26.
+
+Jo-Philipp Wich (1):
+      fix musl compatibility
+
+Version 1.0.25                                          December 22 2014
+------------------------------------------------------------------------
+
+Guus Sliepen (7):
+      Fix date of last NEWS entry.
+      Remember ToS/Diffserv priority for each socket individually.
+      Attribution for various contributors.
+      Automatically choose a tap device on Mac OS X when using switch Mode.
+      Update documentation for Mac OS X.
+      Check whether res_init() really lives in libresolv.
+      Releasing 1.0.25.
+
+Borg (3):
+      Fixed scripts calling under Win32.
+      Get MAC of TAP device.
+      Fixed tinc-up script calling on Win32.
+
+Alexis Hildebrandt (1):
+      Add support to link against libresolv Mac OS X
+
+Baptiste Jonglez (1):
+      Use the description from the 1.1 man page for the IndirectData option
+
+David Pflug (1):
+      Update README.android
+
+Jochen Voss (1):
+      Fix some typos in the manual.
+
+Tomislav Čohar (1):
+      Configure minimum reconnect timeouts.
+
+VittGam (1):
+      Support ToS/DiffServ priority handling for IPv6 meta and UDP connections.
+
+Version 1.0.24                                               May 11 2014
+------------------------------------------------------------------------
+
+Guus Sliepen (13):
+      Remove useless variable 'hard' from try_harder().
+      Merge pull request #14 from luckyhacky/master
+      Add an autoconf check for res_init().
+      Nexthop calculation should always use the shortest path.
+      Fix issues found by Coverity.
+      Fix warnings found by GCC 4.9.
+      Fix a few more issues found by Coverity.
+      Fix a few more issues found by Coverity.
+      Drop h and hh length modifiers from printf format strings.
+      Fix a bug that could prevent tinc from starting correctly on Windows.
+      FIx the autoconf checks for res_init().
+      Remove the warnings when IP_DONTFRAGMENT/IPV6-DONTFRAG is not supported.
+      Releasing 1.0.24.
+
+Steffan Karger (3):
+      Use constant time memcmp() when comparing packet HMACs.
+      Use cryptographically strong random when generating keys.
+      Check RAND_bytes() return value, fail when getting random fails.
+
+Armin Fisslthaler (1):
+      reload /etc/resolv.conf in SIGALRM handler
+
+Loic Dachary (1):
+      fix documentation typo
+
+luckyhacky (1):
+      update to openssl version 1.0.1g due to lack of heartbleed bug in prior version of openssl
+
+refs/tags/1.0.23-android-1                                 March 11 2014
+------------------------------------------------------------------------
+
+Guus Sliepen (13):
+      Mention in the manual that multiple Address staments are allowed.
+      If no Port is specified, set myport to actual port of first listening socket.
+      Enable compiler hardening flags by default.
+      Update support for Solaris.
+      Include <limits.h> for PATH_MAX.
+      Stricter check for raw socket support.
+      Use hardcoded value for TUNNEWPPA if net/if_tun.h is missing on Solaris.
+      Fix incorrectly merged bits from 80cd2ff73071941a5356555b85a00ee90dfd0e16.
+      Don't enable -fstack-protector-all.
+      Remove or lower the priority of some debug messages.
+      Clarify StrictSubnets.
+      Attribution for various contributors.
+      Handle errors from TAP-Win32/64 adapter in a better way.
+
+Florent Clairambault (2):
+      Adding "conf.d" configuration dir support.
+      Adding some documentation around the /etc/tinc/$NET/conf.d directory.
+
+Vilbrekin (1):
+      Update android build instructions. Disable PIE as this is not supported on some devices.
+
+Version 1.0.23                                           October 19 2013
+------------------------------------------------------------------------
+
+Guus Sliepen (9):
+      Check for writability when waiting for a socket to finish connecting.
+      Don't send PING requests on connections which are not active yet.
+      Fix segfault when Name = $HOST but $HOST is not set.
+      Fix typos in the documentation.
+      Modernize the build system.
+      Get rid of the splay tree implementation.
+      Add description of IffOneQueue and MaxTimeout to the info manual.
+      Clean up child processes from proxy type exec.
+      Releasing 1.0.23.
+
 Version 1.0.22                                            August 13 2013
 ------------------------------------------------------------------------
 

INSTALL

@@ -1,8 +1,8 @@
 Installation Instructions
 *************************
 
-Copyright (C) 1994-1996, 1999-2002, 2004-2013 Free Software Foundation,
+   Copyright (C) 1994-1996, 1999-2002, 2004-2016 Free Software
-Inc.
+Foundation, Inc.
 
    Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright
@@ -12,97 +12,96 @@ without warranty of any kind.
 Basic Installation
 ==================
 
-   Briefly, the shell commands `./configure; make; make install' should
+   Briefly, the shell command './configure && make && make install'
-configure, build, and install this package.  The following
+should configure, build, and install this package.  The following
-more-detailed instructions are generic; see the `README' file for
+more-detailed instructions are generic; see the 'README' file for
 instructions specific to this package.  Some packages provide this
-`INSTALL' file but do not implement all of the features documented
+'INSTALL' file but do not implement all of the features documented
 below.  The lack of an optional feature in a given package is not
 necessarily a bug.  More recommendations for GNU packages can be found
 in *note Makefile Conventions: (standards)Makefile Conventions.
 
-   The `configure' shell script attempts to guess correct values for
+   The 'configure' shell script attempts to guess correct values for
 various system-dependent variables used during compilation.  It uses
-those values to create a `Makefile' in each directory of the package.
+those values to create a 'Makefile' in each directory of the package.
-It may also create one or more `.h' files containing system-dependent
+It may also create one or more '.h' files containing system-dependent
-definitions.  Finally, it creates a shell script `config.status' that
+definitions.  Finally, it creates a shell script 'config.status' that
 you can run in the future to recreate the current configuration, and a
-file `config.log' containing compiler output (useful mainly for
+file 'config.log' containing compiler output (useful mainly for
-debugging `configure').
+debugging 'configure').
 
-   It can also use an optional file (typically called `config.cache'
+   It can also use an optional file (typically called 'config.cache' and
-and enabled with `--cache-file=config.cache' or simply `-C') that saves
+enabled with '--cache-file=config.cache' or simply '-C') that saves the
-the results of its tests to speed up reconfiguring.  Caching is
+results of its tests to speed up reconfiguring.  Caching is disabled by
-disabled by default to prevent problems with accidental use of stale
+default to prevent problems with accidental use of stale cache files.
-cache files.
 
    If you need to do unusual things to compile the package, please try
-to figure out how `configure' could check whether to do them, and mail
+to figure out how 'configure' could check whether to do them, and mail
-diffs or instructions to the address given in the `README' so they can
+diffs or instructions to the address given in the 'README' so they can
 be considered for the next release.  If you are using the cache, and at
-some point `config.cache' contains results you don't want to keep, you
+some point 'config.cache' contains results you don't want to keep, you
 may remove or edit it.
 
-   The file `configure.ac' (or `configure.in') is used to create
+   The file 'configure.ac' (or 'configure.in') is used to create
-`configure' by a program called `autoconf'.  You need `configure.ac' if
+'configure' by a program called 'autoconf'.  You need 'configure.ac' if
-you want to change it or regenerate `configure' using a newer version
+you want to change it or regenerate 'configure' using a newer version of
-of `autoconf'.
+'autoconf'.
 
    The simplest way to compile this package is:
 
-  1. `cd' to the directory containing the package's source code and type
+  1. 'cd' to the directory containing the package's source code and type
-     `./configure' to configure the package for your system.
+     './configure' to configure the package for your system.
 
-     Running `configure' might take a while.  While running, it prints
+     Running 'configure' might take a while.  While running, it prints
      some messages telling which features it is checking for.
 
-  2. Type `make' to compile the package.
+  2. Type 'make' to compile the package.
 
-  3. Optionally, type `make check' to run any self-tests that come with
+  3. Optionally, type 'make check' to run any self-tests that come with
      the package, generally using the just-built uninstalled binaries.
 
-  4. Type `make install' to install the programs and any data files and
+  4. Type 'make install' to install the programs and any data files and
      documentation.  When installing into a prefix owned by root, it is
      recommended that the package be configured and built as a regular
-     user, and only the `make install' phase executed with root
+     user, and only the 'make install' phase executed with root
      privileges.
 
-  5. Optionally, type `make installcheck' to repeat any self-tests, but
+  5. Optionally, type 'make installcheck' to repeat any self-tests, but
      this time using the binaries in their final installed location.
      This target does not install anything.  Running this target as a
-     regular user, particularly if the prior `make install' required
+     regular user, particularly if the prior 'make install' required
      root privileges, verifies that the installation completed
      correctly.
 
   6. You can remove the program binaries and object files from the
-     source code directory by typing `make clean'.  To also remove the
+     source code directory by typing 'make clean'.  To also remove the
-     files that `configure' created (so you can compile the package for
+     files that 'configure' created (so you can compile the package for
-     a different kind of computer), type `make distclean'.  There is
+     a different kind of computer), type 'make distclean'.  There is
-     also a `make maintainer-clean' target, but that is intended mainly
+     also a 'make maintainer-clean' target, but that is intended mainly
      for the package's developers.  If you use it, you may have to get
      all sorts of other programs in order to regenerate files that came
      with the distribution.
 
-  7. Often, you can also type `make uninstall' to remove the installed
+  7. Often, you can also type 'make uninstall' to remove the installed
      files again.  In practice, not all packages have tested that
      uninstallation works correctly, even though it is required by the
      GNU Coding Standards.
 
-  8. Some packages, particularly those that use Automake, provide `make
+  8. Some packages, particularly those that use Automake, provide 'make
      distcheck', which can by used by developers to test that all other
-     targets like `make install' and `make uninstall' work correctly.
+     targets like 'make install' and 'make uninstall' work correctly.
      This target is generally not run by end users.
 
 Compilers and Options
 =====================
 
    Some systems require unusual options for compilation or linking that
-the `configure' script does not know about.  Run `./configure --help'
+the 'configure' script does not know about.  Run './configure --help'
 for details on some of the pertinent environment variables.
 
-   You can give `configure' initial values for configuration parameters
+   You can give 'configure' initial values for configuration parameters
-by setting variables in the command line or in the environment.  Here
+by setting variables in the command line or in the environment.  Here is
-is an example:
+an example:
 
      ./configure CC=c99 CFLAGS=-g LIBS=-lposix
 
@@ -113,21 +112,21 @@ Compiling For Multiple Architectures
 
    You can compile the package for more than one kind of computer at the
 same time, by placing the object files for each architecture in their
-own directory.  To do this, you can use GNU `make'.  `cd' to the
+own directory.  To do this, you can use GNU 'make'.  'cd' to the
 directory where you want the object files and executables to go and run
-the `configure' script.  `configure' automatically checks for the
+the 'configure' script.  'configure' automatically checks for the source
-source code in the directory that `configure' is in and in `..'.  This
+code in the directory that 'configure' is in and in '..'.  This is known
-is known as a "VPATH" build.
+as a "VPATH" build.
 
-   With a non-GNU `make', it is safer to compile the package for one
+   With a non-GNU 'make', it is safer to compile the package for one
 architecture at a time in the source code directory.  After you have
-installed the package for one architecture, use `make distclean' before
+installed the package for one architecture, use 'make distclean' before
 reconfiguring for another architecture.
 
    On MacOS X 10.5 and later systems, you can create libraries and
 executables that work on multiple system types--known as "fat" or
-"universal" binaries--by specifying multiple `-arch' options to the
+"universal" binaries--by specifying multiple '-arch' options to the
-compiler but only a single `-arch' option to the preprocessor.  Like
+compiler but only a single '-arch' option to the preprocessor.  Like
 this:
 
      ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
@@ -136,105 +135,104 @@ this:
 
    This is not guaranteed to produce working output in all cases, you
 may have to build one architecture at a time and combine the results
-using the `lipo' tool if you have problems.
+using the 'lipo' tool if you have problems.
 
 Installation Names
 ==================
 
-   By default, `make install' installs the package's commands under
+   By default, 'make install' installs the package's commands under
-`/usr/local/bin', include files under `/usr/local/include', etc.  You
+'/usr/local/bin', include files under '/usr/local/include', etc.  You
-can specify an installation prefix other than `/usr/local' by giving
+can specify an installation prefix other than '/usr/local' by giving
-`configure' the option `--prefix=PREFIX', where PREFIX must be an
+'configure' the option '--prefix=PREFIX', where PREFIX must be an
 absolute file name.
 
    You can specify separate installation prefixes for
 architecture-specific files and architecture-independent files.  If you
-pass the option `--exec-prefix=PREFIX' to `configure', the package uses
+pass the option '--exec-prefix=PREFIX' to 'configure', the package uses
 PREFIX as the prefix for installing programs and libraries.
 Documentation and other data files still use the regular prefix.
 
    In addition, if you use an unusual directory layout you can give
-options like `--bindir=DIR' to specify different values for particular
+options like '--bindir=DIR' to specify different values for particular
-kinds of files.  Run `configure --help' for a list of the directories
+kinds of files.  Run 'configure --help' for a list of the directories
-you can set and what kinds of files go in them.  In general, the
+you can set and what kinds of files go in them.  In general, the default
-default for these options is expressed in terms of `${prefix}', so that
+for these options is expressed in terms of '${prefix}', so that
-specifying just `--prefix' will affect all of the other directory
+specifying just '--prefix' will affect all of the other directory
 specifications that were not explicitly provided.
 
    The most portable way to affect installation locations is to pass the
-correct locations to `configure'; however, many packages provide one or
+correct locations to 'configure'; however, many packages provide one or
 both of the following shortcuts of passing variable assignments to the
-`make install' command line to change installation locations without
+'make install' command line to change installation locations without
 having to reconfigure or recompile.
 
    The first method involves providing an override variable for each
-affected directory.  For example, `make install
+affected directory.  For example, 'make install
 prefix=/alternate/directory' will choose an alternate location for all
 directory configuration variables that were expressed in terms of
-`${prefix}'.  Any directories that were specified during `configure',
+'${prefix}'.  Any directories that were specified during 'configure',
-but not in terms of `${prefix}', must each be overridden at install
+but not in terms of '${prefix}', must each be overridden at install time
-time for the entire installation to be relocated.  The approach of
+for the entire installation to be relocated.  The approach of makefile
-makefile variable overrides for each directory variable is required by
+variable overrides for each directory variable is required by the GNU
-the GNU Coding Standards, and ideally causes no recompilation.
+Coding Standards, and ideally causes no recompilation.  However, some
-However, some platforms have known limitations with the semantics of
+platforms have known limitations with the semantics of shared libraries
-shared libraries that end up requiring recompilation when using this
+that end up requiring recompilation when using this method, particularly
-method, particularly noticeable in packages that use GNU Libtool.
+noticeable in packages that use GNU Libtool.
 
-   The second method involves providing the `DESTDIR' variable.  For
+   The second method involves providing the 'DESTDIR' variable.  For
-example, `make install DESTDIR=/alternate/directory' will prepend
+example, 'make install DESTDIR=/alternate/directory' will prepend
-`/alternate/directory' before all installation names.  The approach of
+'/alternate/directory' before all installation names.  The approach of
-`DESTDIR' overrides is not required by the GNU Coding Standards, and
+'DESTDIR' overrides is not required by the GNU Coding Standards, and
 does not work on platforms that have drive letters.  On the other hand,
 it does better at avoiding recompilation issues, and works well even
-when some directory options were not specified in terms of `${prefix}'
+when some directory options were not specified in terms of '${prefix}'
-at `configure' time.
+at 'configure' time.
 
 Optional Features
 =================
 
    If the package supports it, you can cause programs to be installed
-with an extra prefix or suffix on their names by giving `configure' the
+with an extra prefix or suffix on their names by giving 'configure' the
-option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+option '--program-prefix=PREFIX' or '--program-suffix=SUFFIX'.
 
-   Some packages pay attention to `--enable-FEATURE' options to
+   Some packages pay attention to '--enable-FEATURE' options to
-`configure', where FEATURE indicates an optional part of the package.
+'configure', where FEATURE indicates an optional part of the package.
-They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+They may also pay attention to '--with-PACKAGE' options, where PACKAGE
-is something like `gnu-as' or `x' (for the X Window System).  The
+is something like 'gnu-as' or 'x' (for the X Window System).  The
-`README' should mention any `--enable-' and `--with-' options that the
+'README' should mention any '--enable-' and '--with-' options that the
 package recognizes.
 
-   For packages that use the X Window System, `configure' can usually
+   For packages that use the X Window System, 'configure' can usually
 find the X include and library files automatically, but if it doesn't,
-you can use the `configure' options `--x-includes=DIR' and
+you can use the 'configure' options '--x-includes=DIR' and
-`--x-libraries=DIR' to specify their locations.
+'--x-libraries=DIR' to specify their locations.
 
    Some packages offer the ability to configure how verbose the
-execution of `make' will be.  For these packages, running `./configure
+execution of 'make' will be.  For these packages, running './configure
 --enable-silent-rules' sets the default to minimal output, which can be
-overridden with `make V=1'; while running `./configure
+overridden with 'make V=1'; while running './configure
 --disable-silent-rules' sets the default to verbose, which can be
-overridden with `make V=0'.
+overridden with 'make V=0'.
 
 Particular systems
 ==================
 
-   On HP-UX, the default C compiler is not ANSI C compatible.  If GNU
+   On HP-UX, the default C compiler is not ANSI C compatible.  If GNU CC
-CC is not installed, it is recommended to use the following options in
+is not installed, it is recommended to use the following options in
 order to use an ANSI C compiler:
 
      ./configure CC="cc -Ae -D_XOPEN_SOURCE=500"
 
 and if that doesn't work, install pre-built binaries of GCC for HP-UX.
 
-   HP-UX `make' updates targets which have the same time stamps as
+   HP-UX 'make' updates targets which have the same time stamps as their
-their prerequisites, which makes it generally unusable when shipped
+prerequisites, which makes it generally unusable when shipped generated
-generated files such as `configure' are involved.  Use GNU `make'
+files such as 'configure' are involved.  Use GNU 'make' instead.
-instead.
 
    On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
-parse its `<wchar.h>' header file.  The option `-nodtk' can be used as
+parse its '<wchar.h>' header file.  The option '-nodtk' can be used as a
-a workaround.  If GNU CC is not installed, it is therefore recommended
+workaround.  If GNU CC is not installed, it is therefore recommended to
-to try
+try
 
      ./configure CC="cc"
 
@@ -242,26 +240,26 @@ and if that doesn't work, try
 
      ./configure CC="cc -nodtk"
 
-   On Solaris, don't put `/usr/ucb' early in your `PATH'.  This
+   On Solaris, don't put '/usr/ucb' early in your 'PATH'.  This
 directory contains several dysfunctional programs; working variants of
-these programs are available in `/usr/bin'.  So, if you need `/usr/ucb'
+these programs are available in '/usr/bin'.  So, if you need '/usr/ucb'
-in your `PATH', put it _after_ `/usr/bin'.
+in your 'PATH', put it _after_ '/usr/bin'.
 
-   On Haiku, software installed for all users goes in `/boot/common',
+   On Haiku, software installed for all users goes in '/boot/common',
-not `/usr/local'.  It is recommended to use the following options:
+not '/usr/local'.  It is recommended to use the following options:
 
      ./configure --prefix=/boot/common
 
 Specifying the System Type
 ==========================
 
-   There may be some features `configure' cannot figure out
+   There may be some features 'configure' cannot figure out
 automatically, but needs to determine by the type of machine the package
 will run on.  Usually, assuming the package is built to be run on the
-_same_ architectures, `configure' can figure that out, but if it prints
+_same_ architectures, 'configure' can figure that out, but if it prints
 a message saying it cannot guess the machine type, give it the
-`--build=TYPE' option.  TYPE can either be a short name for the system
+'--build=TYPE' option.  TYPE can either be a short name for the system
-type, such as `sun4', or a canonical name which has the form:
+type, such as 'sun4', or a canonical name which has the form:
 
      CPU-COMPANY-SYSTEM
 
@@ -270,101 +268,101 @@ where SYSTEM can have one of these forms:
      OS
      KERNEL-OS
 
-   See the file `config.sub' for the possible values of each field.  If
+   See the file 'config.sub' for the possible values of each field.  If
-`config.sub' isn't included in this package, then this package doesn't
+'config.sub' isn't included in this package, then this package doesn't
 need to know the machine type.
 
    If you are _building_ compiler tools for cross-compiling, you should
-use the option `--target=TYPE' to select the type of system they will
+use the option '--target=TYPE' to select the type of system they will
 produce code for.
 
    If you want to _use_ a cross compiler, that generates code for a
 platform different from the build platform, you should specify the
 "host" platform (i.e., that on which the generated programs will
-eventually be run) with `--host=TYPE'.
+eventually be run) with '--host=TYPE'.
 
 Sharing Defaults
 ================
 
-   If you want to set default values for `configure' scripts to share,
+   If you want to set default values for 'configure' scripts to share,
-you can create a site shell script called `config.site' that gives
+you can create a site shell script called 'config.site' that gives
-default values for variables like `CC', `cache_file', and `prefix'.
+default values for variables like 'CC', 'cache_file', and 'prefix'.
-`configure' looks for `PREFIX/share/config.site' if it exists, then
+'configure' looks for 'PREFIX/share/config.site' if it exists, then
-`PREFIX/etc/config.site' if it exists.  Or, you can set the
+'PREFIX/etc/config.site' if it exists.  Or, you can set the
-`CONFIG_SITE' environment variable to the location of the site script.
+'CONFIG_SITE' environment variable to the location of the site script.
-A warning: not all `configure' scripts look for a site script.
+A warning: not all 'configure' scripts look for a site script.
 
 Defining Variables
 ==================
 
    Variables not defined in a site shell script can be set in the
-environment passed to `configure'.  However, some packages may run
+environment passed to 'configure'.  However, some packages may run
 configure again during the build, and the customized values of these
 variables may be lost.  In order to avoid this problem, you should set
-them in the `configure' command line, using `VAR=value'.  For example:
+them in the 'configure' command line, using 'VAR=value'.  For example:
 
      ./configure CC=/usr/local2/bin/gcc
 
-causes the specified `gcc' to be used as the C compiler (unless it is
+causes the specified 'gcc' to be used as the C compiler (unless it is
 overridden in the site shell script).
 
-Unfortunately, this technique does not work for `CONFIG_SHELL' due to
+Unfortunately, this technique does not work for 'CONFIG_SHELL' due to an
-an Autoconf limitation.  Until the limitation is lifted, you can use
+Autoconf limitation.  Until the limitation is lifted, you can use this
-this workaround:
+workaround:
 
      CONFIG_SHELL=/bin/bash ./configure CONFIG_SHELL=/bin/bash
 
-`configure' Invocation
+'configure' Invocation
 ======================
 
-   `configure' recognizes the following options to control how it
+   'configure' recognizes the following options to control how it
 operates.
 
-`--help'
+'--help'
-`-h'
+'-h'
-     Print a summary of all of the options to `configure', and exit.
+     Print a summary of all of the options to 'configure', and exit.
 
-`--help=short'
+'--help=short'
-`--help=recursive'
+'--help=recursive'
      Print a summary of the options unique to this package's
-     `configure', and exit.  The `short' variant lists options used
+     'configure', and exit.  The 'short' variant lists options used only
-     only in the top level, while the `recursive' variant lists options
+     in the top level, while the 'recursive' variant lists options also
-     also present in any nested packages.
+     present in any nested packages.
 
-`--version'
+'--version'
-`-V'
+'-V'
-     Print the version of Autoconf used to generate the `configure'
+     Print the version of Autoconf used to generate the 'configure'
      script, and exit.
 
-`--cache-file=FILE'
+'--cache-file=FILE'
      Enable the cache: use and save the results of the tests in FILE,
-     traditionally `config.cache'.  FILE defaults to `/dev/null' to
+     traditionally 'config.cache'.  FILE defaults to '/dev/null' to
      disable caching.
 
-`--config-cache'
+'--config-cache'
-`-C'
+'-C'
-     Alias for `--cache-file=config.cache'.
+     Alias for '--cache-file=config.cache'.
 
-`--quiet'
+'--quiet'
-`--silent'
+'--silent'
-`-q'
+'-q'
      Do not print messages saying which checks are being made.  To
-     suppress all normal output, redirect it to `/dev/null' (any error
+     suppress all normal output, redirect it to '/dev/null' (any error
      messages will still be shown).
 
-`--srcdir=DIR'
+'--srcdir=DIR'
      Look for the package's source code in directory DIR.  Usually
-     `configure' can determine that directory automatically.
+     'configure' can determine that directory automatically.
 
-`--prefix=DIR'
+'--prefix=DIR'
-     Use DIR as the installation prefix.  *note Installation Names::
+     Use DIR as the installation prefix.  *note Installation Names:: for
-     for more details, including other options available for fine-tuning
+     more details, including other options available for fine-tuning the
-     the installation locations.
+     installation locations.
 
-`--no-create'
+'--no-create'
-`-n'
+'-n'
      Run the configure checks, but stop before creating any output
      files.
 
-`configure' also accepts some other, not widely useful, options.  Run
+'configure' also accepts some other, not widely useful, options.  Run
-`configure --help' for more details.
+'configure --help' for more details.

Makefile.am

@@ -2,26 +2,14 @@
 
 AUTOMAKE_OPTIONS = gnu
 
-SUBDIRS =  m4 lib src doc
+SUBDIRS = src doc systemd
 
 ACLOCAL_AMFLAGS = -I m4 
 
-EXTRA_DIST = have.h system.h COPYING.README README.android
+EXTRA_DIST = COPYING.README README.android
 
 ChangeLog:
 	git log > ChangeLog
 
-deb:
+astyle:
-	dpkg-buildpackage -rfakeroot
+	astyle --options=.astylerc -nQ src/*.[ch] src/*/*.[ch]
-
-rpm: dist
-	cp $(distdir).tar.gz /usr/src/redhat/SOURCES/
-	cp redhat/tinc.spec /usr/src/redhat/SOURCES/
-	cd /usr/src/redhat/SOURCES/ && rpm -bb tinc.spec
-
-release:
-	rm -f ChangeLog
-	$(MAKE) ChangeLog
-	echo "Please edit the NEWS file now..."
-	/usr/bin/editor NEWS
-	$(MAKE) dist

Makefile.in

@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.13.3 from Makefile.am.
+# Makefile.in generated by automake 1.16.2 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -14,7 +14,17 @@
 
 @SET_MAKE@
 VPATH = @srcdir@
-am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
 am__make_running_with_option = \
   case $${target_option-} in \
       ?) ;; \
@@ -78,17 +88,19 @@ POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
 subdir = .
-DIST_COMMON = INSTALL NEWS README AUTHORS ChangeLog \
-	$(srcdir)/Makefile.in $(srcdir)/Makefile.am \
-	$(top_srcdir)/configure $(am__configure_deps) \
-	$(srcdir)/config.h.in COPYING THANKS config.guess config.sub \
-	install-sh missing
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/attribute.m4 \
-	$(top_srcdir)/m4/lzo.m4 $(top_srcdir)/m4/openssl.m4 \
+	$(top_srcdir)/m4/ax_append_flag.m4 \
-	$(top_srcdir)/m4/zlib.m4 $(top_srcdir)/configure.in
+	$(top_srcdir)/m4/ax_cflags_warn_all.m4 \
+	$(top_srcdir)/m4/ax_check_compile_flag.m4 \
+	$(top_srcdir)/m4/ax_check_link_flag.m4 \
+	$(top_srcdir)/m4/ax_require_defined.m4 $(top_srcdir)/m4/lzo.m4 \
+	$(top_srcdir)/m4/openssl.m4 $(top_srcdir)/m4/zlib.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(top_srcdir)/configure \
+	$(am__configure_deps) $(am__DIST_COMMON)
 am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
  configure.lineno config.status.lineno
 mkinstalldirs = $(install_sh) -d
@@ -129,9 +141,9 @@ am__recursive_targets = \
   $(RECURSIVE_CLEAN_TARGETS) \
   $(am__extra_recursive_targets)
 AM_RECURSIVE_TARGETS = $(am__recursive_targets:-recursive=) TAGS CTAGS \
-	cscope distdir dist dist-all distcheck
+	cscope distdir distdir-am dist dist-all distcheck
-am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) \
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP) \
-	$(LISP)config.h.in
+	config.h.in
 # Read a list of newline-separated strings from the standard input,
 # and print each of them once, without duplicates.  Input order is
 # *not* preserved.
@@ -152,6 +164,9 @@ ETAGS = etags
 CTAGS = ctags
 CSCOPE = cscope
 DIST_SUBDIRS = $(SUBDIRS)
+am__DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/config.h.in AUTHORS \
+	COPYING ChangeLog INSTALL NEWS README THANKS compile \
+	config.guess config.sub depcomp install-sh missing
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 distdir = $(PACKAGE)-$(VERSION)
 top_distdir = $(distdir)
@@ -195,7 +210,6 @@ am__distuninstallcheck_listfiles = $(distuninstallcheck_listfiles) \
   | sed 's|^\./|$(prefix)/|' | grep -v '$(infodir)/dir$$'
 distcleancheck_listfiles = find . -type f -print
 ACLOCAL = @ACLOCAL@
-ALLOCA = @ALLOCA@
 AMTAR = @AMTAR@
 AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
 AUTOCONF = @AUTOCONF@
@@ -216,7 +230,6 @@ ECHO_T = @ECHO_T@
 EGREP = @EGREP@
 EXEEXT = @EXEEXT@
 GREP = @GREP@
-INCLUDES = @INCLUDES@
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
@@ -225,9 +238,7 @@ INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
 LDFLAGS = @LDFLAGS@
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
-LN_S = @LN_S@
 LTLIBOBJS = @LTLIBOBJS@
-MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
 MKDIR_P = @MKDIR_P@
 OBJEXT = @OBJEXT@
@@ -239,7 +250,6 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
-RANLIB = @RANLIB@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
@@ -286,25 +296,27 @@ pdfdir = @pdfdir@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
+runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
 sysconfdir = @sysconfdir@
+systemd_path = @systemd_path@
 target_alias = @target_alias@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 AUTOMAKE_OPTIONS = gnu
-SUBDIRS = m4 lib src doc
+SUBDIRS = src doc systemd
 ACLOCAL_AMFLAGS = -I m4 
-EXTRA_DIST = have.h system.h COPYING.README README.android
+EXTRA_DIST = COPYING.README README.android
 all: config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-recursive
 
 .SUFFIXES:
 am--refresh: Makefile
 	@:
-$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
 	@for dep in $?; do \
 	  case '$(am__configure_deps)' in \
 	    *$$dep*) \
@@ -317,34 +329,33 @@ $(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__confi
 	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu Makefile'; \
 	$(am__cd) $(top_srcdir) && \
 	  $(AUTOMAKE) --gnu Makefile
-.PRECIOUS: Makefile
 Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	@case '$?' in \
 	  *config.status*) \
 	    echo ' $(SHELL) ./config.status'; \
 	    $(SHELL) ./config.status;; \
 	  *) \
-	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe)'; \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__maybe_remake_depfiles)'; \
-	    cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe);; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__maybe_remake_depfiles);; \
 	esac;
 
 $(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
 	$(SHELL) ./config.status --recheck
 
-$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+$(top_srcdir)/configure:  $(am__configure_deps)
 	$(am__cd) $(srcdir) && $(AUTOCONF)
-$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	$(am__cd) $(srcdir) && $(ACLOCAL) $(ACLOCAL_AMFLAGS)
 $(am__aclocal_m4_deps):
 
 config.h: stamp-h1
-	@if test ! -f $@; then rm -f stamp-h1; else :; fi
+	@test -f $@ || rm -f stamp-h1
-	@if test ! -f $@; then $(MAKE) $(AM_MAKEFLAGS) stamp-h1; else :; fi
+	@test -f $@ || $(MAKE) $(AM_MAKEFLAGS) stamp-h1
 
 stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status
 	@rm -f stamp-h1
 	cd $(top_builddir) && $(SHELL) ./config.status config.h
-$(srcdir)/config.h.in: @MAINTAINER_MODE_TRUE@ $(am__configure_deps) 
+$(srcdir)/config.h.in:  $(am__configure_deps) 
 	($(am__cd) $(top_srcdir) && $(AUTOHEADER))
 	rm -f stamp-h1
 	touch $@
@@ -458,7 +469,16 @@ distclean-tags:
 	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
 	-rm -f cscope.out cscope.in.out cscope.po.out cscope.files
 
-distdir: $(DISTFILES)
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@case `sed 15q $(srcdir)/NEWS` in \
+	*"$(VERSION)"*) : ;; \
+	*) \
+	  echo "NEWS not updated; not releasing" 1>&2; \
+	  exit 1;; \
+	esac
 	$(am__remove_distdir)
 	test -d "$(distdir)" || mkdir "$(distdir)"
 	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
@@ -523,7 +543,7 @@ distdir: $(DISTFILES)
 	  ! -type d ! -perm -444 -exec $(install_sh) -c -m a+r {} {} \; \
 	|| chmod -R a+r "$(distdir)"
 dist-gzip: distdir
-	tardir=$(distdir) && $(am__tar) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+	tardir=$(distdir) && $(am__tar) | eval GZIP= gzip $(GZIP_ENV) -c >$(distdir).tar.gz
 	$(am__post_remove_distdir)
 
 dist-bzip2: distdir
@@ -538,12 +558,22 @@ dist-xz: distdir
 	tardir=$(distdir) && $(am__tar) | XZ_OPT=$${XZ_OPT--e} xz -c >$(distdir).tar.xz
 	$(am__post_remove_distdir)
 
+dist-zstd: distdir
+	tardir=$(distdir) && $(am__tar) | zstd -c $${ZSTD_CLEVEL-$${ZSTD_OPT--19}} >$(distdir).tar.zst
+	$(am__post_remove_distdir)
+
 dist-tarZ: distdir
+	@echo WARNING: "Support for distribution archives compressed with" \
+		       "legacy program 'compress' is deprecated." >&2
+	@echo WARNING: "It will be removed altogether in Automake 2.0" >&2
 	tardir=$(distdir) && $(am__tar) | compress -c >$(distdir).tar.Z
 	$(am__post_remove_distdir)
 
 dist-shar: distdir
-	shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
+	@echo WARNING: "Support for shar distribution archives is" \
+	               "deprecated." >&2
+	@echo WARNING: "It will be removed altogether in Automake 2.0" >&2
+	shar $(distdir) | eval GZIP= gzip $(GZIP_ENV) -c >$(distdir).shar.gz
 	$(am__post_remove_distdir)
 
 dist-zip: distdir
@@ -561,7 +591,7 @@ dist dist-all:
 distcheck: dist
 	case '$(DIST_ARCHIVES)' in \
 	*.tar.gz*) \
-	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).tar.gz | $(am__untar) ;;\
+	  eval GZIP= gzip $(GZIP_ENV) -dc $(distdir).tar.gz | $(am__untar) ;;\
 	*.tar.bz2*) \
 	  bzip2 -dc $(distdir).tar.bz2 | $(am__untar) ;;\
 	*.tar.lz*) \
@@ -571,22 +601,25 @@ distcheck: dist
 	*.tar.Z*) \
 	  uncompress -c $(distdir).tar.Z | $(am__untar) ;;\
 	*.shar.gz*) \
-	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).shar.gz | unshar ;;\
+	  eval GZIP= gzip $(GZIP_ENV) -dc $(distdir).shar.gz | unshar ;;\
 	*.zip*) \
 	  unzip $(distdir).zip ;;\
+	*.tar.zst*) \
+	  zstd -dc $(distdir).tar.zst | $(am__untar) ;;\
 	esac
 	chmod -R a-w $(distdir)
 	chmod u+w $(distdir)
-	mkdir $(distdir)/_build $(distdir)/_inst
+	mkdir $(distdir)/_build $(distdir)/_build/sub $(distdir)/_inst
 	chmod a-w $(distdir)
 	test -d $(distdir)/_build || exit 0; \
 	dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
 	  && dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
 	  && am__cwd=`pwd` \
-	  && $(am__cd) $(distdir)/_build \
+	  && $(am__cd) $(distdir)/_build/sub \
-	  && ../configure --srcdir=.. --prefix="$$dc_install_base" \
+	  && ../../configure \
 	    $(AM_DISTCHECK_CONFIGURE_FLAGS) \
 	    $(DISTCHECK_CONFIGURE_FLAGS) \
+	    --srcdir=../.. --prefix="$$dc_install_base" \
 	  && $(MAKE) $(AM_MAKEFLAGS) \
 	  && $(MAKE) $(AM_MAKEFLAGS) dvi \
 	  && $(MAKE) $(AM_MAKEFLAGS) check \
@@ -749,7 +782,7 @@ uninstall-am:
 	am--refresh check check-am clean clean-cscope clean-generic \
 	cscope cscopelist-am ctags ctags-am dist dist-all dist-bzip2 \
 	dist-gzip dist-lzip dist-shar dist-tarZ dist-xz dist-zip \
-	distcheck distclean distclean-generic distclean-hdr \
+	dist-zstd distcheck distclean distclean-generic distclean-hdr \
 	distclean-tags distcleancheck distdir distuninstallcheck dvi \
 	dvi-am html html-am info info-am install install-am \
 	install-data install-data-am install-dvi install-dvi-am \
@@ -761,24 +794,14 @@ uninstall-am:
 	mostlyclean-generic pdf pdf-am ps ps-am tags tags-am uninstall \
 	uninstall-am
 
+.PRECIOUS: Makefile
+
 
 ChangeLog:
 	git log > ChangeLog
 
-deb:
+astyle:
-	dpkg-buildpackage -rfakeroot
+	astyle --options=.astylerc -nQ src/*.[ch] src/*/*.[ch]
-
-rpm: dist
-	cp $(distdir).tar.gz /usr/src/redhat/SOURCES/
-	cp redhat/tinc.spec /usr/src/redhat/SOURCES/
-	cd /usr/src/redhat/SOURCES/ && rpm -bb tinc.spec
-
-release:
-	rm -f ChangeLog
-	$(MAKE) ChangeLog
-	echo "Please edit the NEWS file now..."
-	/usr/bin/editor NEWS
-	$(MAKE) dist
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.

NEWS

@@ -1,3 +1,164 @@
+Version 1.0.36               August 26 2019
+
+ * Fix compiling tinc with certain versions of the OpenSSL library.
+ * Fix parsing some IPv6 addresses with :: in them.
+ * Fix GraphDumpFile output to handle node names starting with a digit.
+ * Fix a potential segmentation fault when fragmenting packets.
+
+Thanks to Rosen Penev, Quentin Rameau and Werner Schreiber for their
+contributions to this version of tinc.
+
+Version 1.0.35               October 5 2018
+
+ * Prevent oracle attacks (CVE-2018-16737, CVE-2018-16738).
+ * Prevent a MITM from forcing a NULL cipher for UDP (CVE-2018-16758).
+ * Minor fixes in the documentation.
+
+Thanks to Amine Amri and Rafael Sadowski for their contributions to this
+version of tinc.
+
+Version 1.0.34               June 12 2018
+
+ * Fix a potential segmentation fault when connecting to an IPv6 peer via a
+   proxy.
+ * Minor improvements to the build system.
+ * Make the systemd service file identical to the one from the 1.1 branch.
+ * Fix a potential problem causing IPv4 sockets to not work on macOS.
+
+Thanks to Maximilian Stein and Wang Liu Shuai for their contributions to this
+version of tinc.
+
+Version 1.0.33               November 4 2017
+
+ * Allow compilation from a build directory.
+ * Source code cleanups.
+ * Fix some options specified on the command line not surviving a HUP signal.
+ * Handle tun/tap device returning EPERM or EBUSY.
+ * Disable PMTUDiscovery when TCPOnly is used.
+ * Support the --runstatedir option of the autoconf 2.70.
+
+Thanks to Rafael Sadowski and Pierre-Olivier Mercier for their contributions to
+this version of tinc.
+
+Version 1.0.32               September 2 2017
+
+ * Fix segmentation fault when using Cipher = none.
+ * Fix Proxy = exec.
+ * Support PriorityInheritance for IPv6 packets.
+ * Fixes for Solaris tun/tap support.
+ * Bind outgoing TCP sockets when ListenAddress is used.
+
+Thanks to Vittorio Gambaletta for his contribution to this version of tinc.
+
+Version 1.0.31               January 15 2017
+
+ * Remove ExecStop in tinc@.service.
+
+Thanks to Élie Bouttier for his contribution to this version of tinc.
+
+Version 1.0.30               October 30 2016
+
+ * Fix troubles connecting to some HTTP proxies.
+
+ * Add mitigations for the Sweet32 attack when using a 64-bit block cipher.
+
+ * Use AES256 and SHA256 as the default encryption and digest algorithms.
+
+Version 1.0.29               October 9 2016
+
+ * Fix UDP communication with peers with link-local IPv6 addresses.
+
+ * Ensure compatibility with OpenSSL 1.1.0.
+
+ * Ensure autoreconf can be run without requiring autoconf-archive.
+
+ * Log warnings about dropped packets only at debug level 5.
+
+Version 1.0.28               April 10 2016
+
+ * Fix compilation on BSD platforms.
+
+ * Add systemd service files.
+
+Version 1.0.27               April 10 2016
+
+ * When using Proxy, let the proxy resolve hostnames if tinc can't.
+
+ * Fixes and improvements of the DecrementTTL option.
+
+ * Fixed the $NAME variable in subnet-up/down scripts for the local Subnets.
+
+ * Fixed potentially wrong checksum generation when clamping the MSS.
+
+ * Properly choose between the system's or our own copy of getopt.
+
+ * Fixed compiling tinc for Cygwin with MinGW installed.
+
+ * Added support for OS X utun interfaces.
+
+ * Documentation updates and minor fixes.
+
+Thanks to Vittorio Gambaletta, LunarShaddow, Florian Weik and Nathan Stratton
+Treadway for their contributions to this version of tinc.
+
+Version 1.0.26               July 5 2015
+
+ * Tinc now forces glibc to reload /etc/resolv.conf for every hostname lookup.
+
+ * Fixed --logfile without a filename on Windows.
+
+ * Ensure tinc can be compiled when using musl libc.
+
+Thanks to Jo-Philipp Wich for his contribution to this version of tinc.
+
+Version 1.0.25               December 22 2014
+
+ * Documentation updates.
+
+ * Support linking against -lresolv on Mac OS X.
+
+ * Fix scripts on Windows when using the ScriptsInterpreter option.
+
+ * Allow a minimum reconnect timeout to be specified.
+
+ * Support PriorityInheritance on IPv6 sockets.
+
+Thanks to David Pflug, Baptiste Jonglez, Alexis Hildebrandt, Borg, Jochen Voss,
+Tomislav Čohar and VittGam for their contributions to this version of tinc.
+
+Version 1.0.24               May 11 2014
+
+ * Various compiler hardening flags are enabled by default.
+
+ * Updated support for Solaris, allowing switch mode on Solaris 11.
+
+ * Configuration will now also be read from a conf.d directory.
+
+ * Various updates to the documentation.
+
+ * Tinc now forces glibc to reload /etc/resolv.conf after it receives SIGALRM.
+
+ * Fixed a potential routing loop when IndirectData or TCPOnly is used and
+   broadcast packets are being sent.
+
+ * Improved security with constant time memcmp and stricter use of OpenSSL's
+   RNG functions.
+
+ * Fixed all issues found by Coverity.
+
+Thanks to Florent Clairambault, Vilbrekin, luckyhacky, Armin Fisslthaler, Loïc
+Dachary and Steffan Karger for their contributions to this version of tinc.
+
+Version 1.0.23               October 19 2013
+
+ * Start authentication immediately on outgoing connections (useful for sslh).
+
+ * Fixed segfault when Name = $HOST but $HOST is not set.
+
+ * Updated the build system and the documentation.
+
+ * Clean up child processes left over from Proxy = exec.
+
 Version 1.0.22               August 13 2013
 
  * Fixed the combination of Mode = router and DeviceType = tap.
@@ -210,7 +371,7 @@ Version 1.0.9                Dec 26 2008
 
  * Enable path MTU discovery by default.
 
- * Fixed a memory leak that occured when connections were closed.
+ * Fixed a memory leak that occurred when connections were closed.
 
  Thanks to Max Rijevski for his contributions to this version of tinc.
 

README

@@ -1,7 +1,7 @@
-This is the README file for tinc version 1.0.22. Installation
+This is the README file for tinc version 1.0.36. Installation
 instructions may be found in the INSTALL file.
 
-tinc is Copyright (C) 1998-2013 by:
+tinc is Copyright (C) 1998-2019 by:
 
 Ivo Timmermans,
 Guus Sliepen <guus@tinc-vpn.org>,
@@ -39,44 +39,50 @@ practice and that the default length of the HMAC for packets is too short in
 his opinion. We do not know of a way to exploit these weaknesses, but these
 issues are being addressed in the tinc 1.1 branch.
 
+The Sweet32 attack affects versions of tinc prior to 1.0.30.
+
+On September 6th, 2018, Michael Yonly contacted us and provided
+proof-of-concept code that allowed a remote attacker to create an
+authenticated, one-way connection with a node, and also that there was a
+possibility for a man-in-the-middle to force UDP packets from a node to be sent
+in plaintext. The first issue was trivial to exploit on tinc versions prior to
+1.0.30, but the changes in 1.0.30 to mitigate the Sweet32 attack made this
+weakness much harder to exploit. These issues have been fixed in tinc 1.0.35.
+The new protocol in the tinc 1.1 branch is not susceptible to these issues.
+
 Cryptography is a hard thing to get right. We cannot make any
 guarantees. Time, review and feedback are the only things that can
 prove the security of any cryptographic product. If you wish to review
-tinc or give us feedback, you are stronly encouraged to do so.
+tinc or give us feedback, you are strongly encouraged to do so.
 
 
-Changes to configuration file format since 1.0pre5
---------------------------------------------------
-
-Some configuration variables have different names now. Most notably "TapDevice"
-should be changed into "Device", and "Device" should be changed into
-"BindToDevice".
-
 Compatibility
 -------------
 
-Version 1.0.22 is compatible with 1.0pre8, 1.0 and later, but not with older
+Version 1.0.35 is compatible with 1.0pre8, 1.0 and later, but not with older
-versions of tinc.
+versions of tinc. Note that since version 1.0.30, tinc requires all nodes in
+the VPN to be compiled with a version of LibreSSL or OpenSSL that supports the
+AES256 and SHA256 algorithms.
 
 
 Requirements
 ------------
 
-Since 1.0pre3, we use OpenSSL for all cryptographic functions.  So you
+The OpenSSL library is used for all cryptographic functions. You can find it at
-need to install this library first; grab it from
+https://www.openssl.org/. You will need version 1.0.1 or later with support for
-http://www.openssl.org/.  You will need version 0.9.7 or later.  If
+AES256 and SHA256 enabled. If this library is not installed on your system, the
-this library is not installed on you system, configure will fail.  The
+configure script will fail.  The manual in doc/tinc.texi contains more detailed
-manual in doc/tinc.texi contains more detailed information on how to
+information on how to install this library. Alternatively, you may also use the
-install this library.
+LibreSSL library.
 
-Since 1.0pre6, the zlib library is used for optional compression. You can
+The zlib library is used for optional compression. You can
-find it at http://www.gzip.org/zlib/. Because of a possible exploit in
+find it at https://zlib.net/. Because of a possible exploit in
 earlier versions we recommend that you download version 1.1.4 or later.
 
-Since 1.0, the lzo library is also used for optional compression. You can
+The LZO library is also used for optional compression. You can
-find it at http://www.oberhumer.com/opensource/lzo/.
+find it at https://www.oberhumer.com/opensource/lzo/.
 
-In order to compile tinc, you will need a GNU C compiler environment.
+In order to compile tinc, you will need a C99 compliant compiler.
 
 
 Features
@@ -106,14 +112,14 @@ Linux, FreeBSD and Windows.
 The algorithms used for encryption and generating message authentication codes
 can now be changed in the configuration files. All cipher and digest algorithms
 supported by OpenSSL can be used. Useful ciphers are "blowfish" (default),
-"bf-ofb", "des", "des3", etcetera. Useful digests are "sha1" (default), "md5",
+"bf-ofb", "des", "des3", et cetera. Useful digests are "sha1" (default), "md5",
-etcetera.
+et cetera.
 
 Support for routing IPv6 packets has been added. Just add Subnet lines with
 IPv6 addresses (without using :: abbreviations) and use ifconfig or ip (from
 the iproute package) to give the virtual network interface corresponding IPv6
-addresses. tinc does not provide autoconfiguration for IPv6 hosts, if you need
+addresses. tinc does not provide autoconfiguration for IPv6 hosts. Consider
-it use radvd or zebra.
+using radvd or zebra if you need it.
 
 It is also possible to make tunnels to other tinc daemons over IPv6 networks,
 if the operating system supports IPv6.  tinc will automatically use both IPv6
@@ -121,7 +127,7 @@ and IPv4 when available, but this can be changed by adding the option
 "AddressFamily = ipv4" or "AddressFamily = ipv6" to the tinc.conf file.
 
 Normally, when started tinc will detach and run in the background. In a native
-Windows environment this means tinc will intall itself as a service, which will
+Windows environment this means tinc will install itself as a service, which will
 restart after reboots.  To prevent tinc from detaching or running as a service,
 use the -D option.
 

README.android

@@ -1,20 +1,25 @@
-Quick how-o cross compile tinc for android (done from $HOME/android/):
+Quick how-to cross compile tinc for android (done from $HOME/android/):
 
 - Download android NDK and setup local ARM toolchain:
-wget http://dl.google.com/android/ndk/android-ndk-r8b-linux-x86.tar.bz2
+wget http://dl.google.com/android/ndk/android-ndk-r9d-linux-x86.tar.bz2
-tar xfj android-ndk-r8b-linux-x86.tar.bz2
+tar xfj android-ndk-r9d-linux-x86.tar.bz2
-./android-ndk-r8b/build/tools/make-standalone-toolchain.sh --platform=android-5 --install-dir=/tmp/my-android-toolchain
+./android-ndk-r9d/build/tools/make-standalone-toolchain.sh --platform=android-5 --install-dir=/tmp/my-android-toolchain
 
 - Download and cross-compile openSSL for ARM:
-wget http://www.openssl.org/source/openssl-1.0.1c.tar.gz
+wget http://www.openssl.org/source/openssl-1.0.1h.tar.gz
-tar xfz openssl-1.0.1c.tar.gz
+tar xfz openssl-1.0.1h.tar.gz
-cd openssl-1.0.1c
+cd openssl-1.0.1h
 ./Configure dist
 make CC=/tmp/my-android-toolchain/bin/arm-linux-androideabi-gcc AR="/tmp/my-android-toolchain/bin/arm-linux-androideabi-ar r" RANLIB=/tmp/my-android-toolchain/bin/arm-linux-androideabi-ranlib
+cd -
 
 - Clone and cross-compile tinc:
 git clone git://tinc-vpn.org/tinc
 cd tinc
 autoreconf -fsi
-CC=/tmp/my-android-toolchain/bin/arm-linux-androideabi-gcc ./configure --host=arm-linux --disable-lzo --with-openssl-lib=$HOME/android/openssl-1.0.1c --with-openssl-include=$HOME/android/openssl-1.0.1c/include/
+CC=/tmp/my-android-toolchain/bin/arm-linux-androideabi-gcc ./configure --host=arm-linux --disable-lzo --with-openssl-lib=$HOME/android/openssl-1.0.1g --with-openssl-include=$HOME/android/openssl-1.0.1g/include/ --disable-hardening
 make -j5
+
+- Strip tincd binary to make it smaller
+/tmp/my-android-toolchain/bin/arm-linux-androideabi-strip src/tincd
+

THANKS

@@ -1,58 +1,126 @@
 We would like to thank the following people for their contributions to tinc:
 
 * Alexander Reil and Gemeinde Berg
+* Alexander Ried
+* Alexis Hildebrandt
 * Allesandro Gatti
 * Andreas van Cranenburgh
+* Andrew Hahn
 * Anthony G. Basile
 * Armijn Hemel
+* Armin Fisslthaler
+* Aron Cowan
+* Ashish Bajaj
+* Baptiste Jonglez
+* Borg
 * Brandon Black
+* Cheng LI
 * Cris van Pelt
 * Darius Jahandarie
+* Dato Simó
+* David Pflug
 * Delf Eldkraft
+* Dennis Joachimsthaler
 * dnk
+* Егор Палкин
+* Élie Bouttier
 * Enrique Zanardi
+* Erik Tews
+* Etienne Dechamps
+* Florent Clairambault
+* Florian Forster
+* Florian Klink
+* Florian Weik
 * Flynn Marquardt
+* Franz Pletz
+* Gary Kessler and Claudia Gonzalez
 * Grzegorz Dymarek
+* Gusariev Oleksandr
 * Hans Bayle
+* Harvest
 * Ivo van Dong
+* Ivo Smits
+* James Cook
 * James MacLean
 * Jamie Briggs
+* Jan Štembera
 * Jason Harper
+* Jason Livesay
+* Jasper Krijgsman
 * Jelle de Jong
+* Jeroen Domburg
 * Jeroen Ubbink
 * Jerome Etienne
+* Jo-Philipp Wich
+* Jochen Voss
 * Julien Muchembled
+* Lavrans Laading
+* Loïc Dachary
 * Loïc Grenié
 * Lubomír Bulej
+* luckyhacky
+* LunarShaddow
 * Mads Kiilerich
 * Marc A. Lehmann
 * Mark Glines
+* Mark Petryk
 * Markus Goetz
 * Martin Kihlgren
 * Martin Schobert
 * Martin Schürrer
+* Martin Weinelt
 * Matias Carrasco
 * Max Rijevski
 * Menno Smits
 * Mesar Hameed
+* Michael Taylor
 * Michael Tokarev
+* Michael Yonli
 * Miles Nordin
+* Nathan Stratton Treadway
+* Murat Donmez
 * Nick Hibma
 * Nick Patavalis
 * Paul Littlefield
 * Philipp Babel
+* Pierre Emeriaud
+* Pierre-Olivier Mercier
+* Rafael Wolf
+* Rafael Sadowski
+* Rafał Leśniak
+* Rhosyn Celyn
 * Robert van der Meulen
+* Robert Waniek
 * Rumko
+* Ryan Miller
+* Sam Bryan
+* Samuel Thibault
+* Saverio Proto
 * Scott Lamb
+* Steffan Karger
+* Stig Fagrell
 * Sven-Haegar Koch
 * Teemu Kiviniemi
+* Thomas Tsiakalakis
 * Timothy Redaelli
+* Tomasz Fortuna
+* Tomislav Čohar
+* Tommy Arnkværn
 * Tonnerre Lombard
+* Ulrich Seifert
 * Vil Brekin
+* Vincent Laurent
+* Vittorio Gambaletta
+* Wendy Willard
 * Wessel Dankers
+* William A. Kennington III
+* William McArthur
 * Wouter van Heyst
+* xentec
+* 戴 鸣
 
-And everyone we forgot. Thank you!
+And everyone we forgot (if we did, please let us know). Thank you!
 
-Ivo Timmermans
+---
-Guus Sliepen
+Ivo Timmermans,
+Guus Sliepen.

aclocal.m4

@@ -1,6 +1,6 @@
-# generated automatically by aclocal 1.13.3 -*- Autoconf -*-
+# generated automatically by aclocal 1.16.2 -*- Autoconf -*-
 
-# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
 
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -20,7 +20,7 @@ You have another version of autoconf.  It may work, but is not guaranteed to.
 If you have problems, you may need to regenerate the build system entirely.
 To do so, use the procedure documented by the package, typically 'autoreconf'.])])
 
-# Copyright (C) 2002-2013 Free Software Foundation, Inc.
+# Copyright (C) 2002-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -32,10 +32,10 @@ To do so, use the procedure documented by the package, typically 'autoreconf'.])
 # generated from the m4 files accompanying Automake X.Y.
 # (This private macro should not be called outside this file.)
 AC_DEFUN([AM_AUTOMAKE_VERSION],
-[am__api_version='1.13'
+[am__api_version='1.16'
 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
 dnl require some minimum version.  Point them to the right macro.
-m4_if([$1], [1.13.3], [],
+m4_if([$1], [1.16.2], [],
       [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
 ])
 
@@ -51,14 +51,14 @@ m4_define([_AM_AUTOCONF_VERSION], [])
 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
 # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
-[AM_AUTOMAKE_VERSION([1.13.3])dnl
+[AM_AUTOMAKE_VERSION([1.16.2])dnl
 m4_ifndef([AC_AUTOCONF_VERSION],
   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
 
 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
 
-# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -103,15 +103,14 @@ _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
 # configured tree to be moved without reconfiguration.
 
 AC_DEFUN([AM_AUX_DIR_EXPAND],
-[dnl Rely on autoconf to set up CDPATH properly.
+[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
-AC_PREREQ([2.50])dnl
+# Expand $ac_aux_dir to an absolute path.
-# expand $ac_aux_dir to an absolute path
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
-am_aux_dir=`cd $ac_aux_dir && pwd`
 ])
 
 # AM_CONDITIONAL                                            -*- Autoconf -*-
 
-# Copyright (C) 1997-2013 Free Software Foundation, Inc.
+# Copyright (C) 1997-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -142,7 +141,7 @@ AC_CONFIG_COMMANDS_PRE(
 Usually this means the macro was only invoked conditionally.]])
 fi])])
 
-# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -333,13 +332,12 @@ _AM_SUBST_NOTMAKE([am__nodep])dnl
 
 # Generate code to set up dependency tracking.              -*- Autoconf -*-
 
-# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-
 # _AM_OUTPUT_DEPENDENCY_COMMANDS
 # ------------------------------
 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
@@ -347,49 +345,43 @@ AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
   # Older Autoconf quotes --file arguments for eval, but not when files
   # are listed without --file.  Let's play safe and only enable the eval
   # if we detect the quoting.
-  case $CONFIG_FILES in
+  # TODO: see whether this extra hack can be removed once we start
-  *\'*) eval set x "$CONFIG_FILES" ;;
+  # requiring Autoconf 2.70 or later.
-  *)   set x $CONFIG_FILES ;;
+  AS_CASE([$CONFIG_FILES],
-  esac
+          [*\'*], [eval set x "$CONFIG_FILES"],
+          [*], [set x $CONFIG_FILES])
   shift
-  for mf
+  # Used to flag and report bootstrapping failures.
+  am_rc=0
+  for am_mf
   do
     # Strip MF so we end up with the name of the file.
-    mf=`echo "$mf" | sed -e 's/:.*$//'`
+    am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
-    # Check whether this is an Automake generated Makefile or not.
+    # Check whether this is an Automake generated Makefile which includes
-    # We used to match only the files named 'Makefile.in', but
+    # dependency-tracking related rules and includes.
-    # some people rename them; so instead we look at the file content.
+    # Grep'ing the whole file directly is not great: AIX grep has a line
-    # Grep'ing the first line is not enough: some people post-process
-    # each Makefile.in and add a new line on top of each file to say so.
-    # Grep'ing the whole file is not good either: AIX grep has a line
     # limit of 2048, but all sed's we know have understand at least 4000.
-    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
+    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
-      dirpart=`AS_DIRNAME("$mf")`
+      || continue
-    else
+    am_dirpart=`AS_DIRNAME(["$am_mf"])`
-      continue
+    am_filepart=`AS_BASENAME(["$am_mf"])`
-    fi
+    AM_RUN_LOG([cd "$am_dirpart" \
-    # Extract the definition of DEPDIR, am__include, and am__quote
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
-    # from the Makefile without running 'make'.
+        | $MAKE -f - am--depfiles]) || am_rc=$?
-    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
-    test -z "$DEPDIR" && continue
-    am__include=`sed -n 's/^am__include = //p' < "$mf"`
-    test -z "$am__include" && continue
-    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
-    # Find all dependency output files, they are included files with
-    # $(DEPDIR) in their names.  We invoke sed twice because it is the
-    # simplest approach to changing $(DEPDIR) to its actual value in the
-    # expansion.
-    for file in `sed -n "
-      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
-	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
-      # Make sure the directory exists.
-      test -f "$dirpart/$file" && continue
-      fdir=`AS_DIRNAME(["$file"])`
-      AS_MKDIR_P([$dirpart/$fdir])
-      # echo "creating $dirpart/$file"
-      echo '# dummy' > "$dirpart/$file"
-    done
   done
+  if test $am_rc -ne 0; then
+    AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
+    for automatic dependency tracking.  If GNU make was not used, consider
+    re-running the configure script with MAKE="gmake" (or whatever is
+    necessary).  You can also try re-running configure with the
+    '--disable-dependency-tracking' option to at least be able to build
+    the package (albeit without support for automatic dependency tracking).])
+  fi
+  AS_UNSET([am_dirpart])
+  AS_UNSET([am_filepart])
+  AS_UNSET([am_mf])
+  AS_UNSET([am_rc])
+  rm -f conftest-deps.mk
 }
 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
 
@@ -398,18 +390,17 @@ AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
 # -----------------------------
 # This macro should only be invoked once -- use via AC_REQUIRE.
 #
-# This code is only required when automatic dependency tracking
+# This code is only required when automatic dependency tracking is enabled.
-# is enabled.  FIXME.  This creates each '.P' file that we will
+# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
-# need in order to bootstrap the dependency handling code.
+# order to bootstrap the dependency handling code.
 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
 [AC_CONFIG_COMMANDS([depfiles],
      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
-     [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
+     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
-])
 
 # Do all the work for Automake.                             -*- Autoconf -*-
 
-# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -418,6 +409,12 @@ AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
 # This macro actually does too much.  Some checks are only needed if
 # your package does certain things.  But this isn't really a big deal.
 
+dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
+m4_define([AC_PROG_CC],
+m4_defn([AC_PROG_CC])
+[_AM_PROG_CC_C_O
+])
+
 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 # AM_INIT_AUTOMAKE([OPTIONS])
 # -----------------------------------------------
@@ -490,11 +487,11 @@ AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
 # For better backward compatibility.  To be removed once Automake 1.9.x
 # dies out for good.  For more background, see:
-# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
-# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
-# We need awk for the "check" target.  The system "awk" is bad on
+# We need awk for the "check" target (and possibly the TAP driver).  The
-# some platforms.
+# system "awk" is bad on some platforms.
 AC_REQUIRE([AC_PROG_AWK])dnl
 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
@@ -526,6 +523,51 @@ dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
 AC_CONFIG_COMMANDS_PRE(dnl
 [m4_provide_if([_AM_COMPILER_EXEEXT],
   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
+
+# POSIX will say in a future version that running "rm -f" with no argument
+# is OK; and we want to be able to make that assumption in our Makefile
+# recipes.  So use an aggressive probe to check that the usage we want is
+# actually supported "in the wild" to an acceptable degree.
+# See automake bug#10828.
+# To make any issue more visible, cause the running configure to be aborted
+# by default if the 'rm' program in use doesn't match our expectations; the
+# user can still override this though.
+if rm -f && rm -fr && rm -rf; then : OK; else
+  cat >&2 <<'END'
+Oops!
+
+Your 'rm' program seems unable to run without file operands specified
+on the command line, even when the '-f' option is present.  This is contrary
+to the behaviour of most rm programs out there, and not conforming with
+the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
+
+Please tell bug-automake@gnu.org about your system, including the value
+of your $PATH and any error possibly output before this message.  This
+can help us improve future automake versions.
+
+END
+  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+    echo 'Configuration will proceed anyway, since you have set the' >&2
+    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+    echo >&2
+  else
+    cat >&2 <<'END'
+Aborting the configuration process, to ensure you take notice of the issue.
+
+You can download and install GNU coreutils to get an 'rm' implementation
+that behaves properly: <https://www.gnu.org/software/coreutils/>.
+
+If you want to complete the configuration process using your problematic
+'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
+to "yes", and re-run configure.
+
+END
+    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
+  fi
+fi
+dnl The trailing newline in this macro's definition is deliberate, for
+dnl backward compatibility and to allow trailing 'dnl'-style comments
+dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 ])
 
 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
@@ -534,7 +576,6 @@ dnl mangled by Autoconf and run in a shell conditional statement.
 m4_define([_AC_COMPILER_EXEEXT],
 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
 
-
 # When config.status generates a header, we must update the stamp-h file.
 # This file resides in the same directory as the config header
 # that is generated.  The stamp files are numbered to have different names.
@@ -556,7 +597,7 @@ for _am_header in $config_headers :; do
 done
 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 
-# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -567,7 +608,7 @@ echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_co
 # Define $install_sh.
 AC_DEFUN([AM_PROG_INSTALL_SH],
 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
-if test x"${install_sh}" != xset; then
+if test x"${install_sh+set}" != xset; then
   case $am_aux_dir in
   *\ * | *\	*)
     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
@@ -577,7 +618,7 @@ if test x"${install_sh}" != xset; then
 fi
 AC_SUBST([install_sh])])
 
-# Copyright (C) 2003-2013 Free Software Foundation, Inc.
+# Copyright (C) 2003-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -596,45 +637,9 @@ fi
 rmdir .tst 2>/dev/null
 AC_SUBST([am__leading_dot])])
 
-# Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
-# From Jim Meyering
-
-# Copyright (C) 1996-2013 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_MAINTAINER_MODE([DEFAULT-MODE])
-# ----------------------------------
-# Control maintainer-specific portions of Makefiles.
-# Default is to disable them, unless 'enable' is passed literally.
-# For symmetry, 'disable' may be passed as well.  Anyway, the user
-# can override the default with the --enable/--disable switch.
-AC_DEFUN([AM_MAINTAINER_MODE],
-[m4_case(m4_default([$1], [disable]),
-       [enable], [m4_define([am_maintainer_other], [disable])],
-       [disable], [m4_define([am_maintainer_other], [enable])],
-       [m4_define([am_maintainer_other], [enable])
-        m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
-AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
-  dnl maintainer-mode's default is 'disable' unless 'enable' is passed
-  AC_ARG_ENABLE([maintainer-mode],
-    [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
-      am_maintainer_other[ make rules and dependencies not useful
-      (and sometimes confusing) to the casual installer])],
-    [USE_MAINTAINER_MODE=$enableval],
-    [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
-  AC_MSG_RESULT([$USE_MAINTAINER_MODE])
-  AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
-  MAINT=$MAINTAINER_MODE_TRUE
-  AC_SUBST([MAINT])dnl
-]
-)
-
 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
 
-# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -642,49 +647,42 @@ AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 
 # AM_MAKE_INCLUDE()
 # -----------------
-# Check to see how make treats includes.
+# Check whether make has an 'include' directive that can support all
+# the idioms we need for our automatic dependency tracking code.
 AC_DEFUN([AM_MAKE_INCLUDE],
-[am_make=${MAKE-make}
+[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
-cat > confinc << 'END'
+cat > confinc.mk << 'END'
 am__doit:
-	@echo this is the am__doit target
+	@echo this is the am__doit target >confinc.out
 .PHONY: am__doit
 END
-# If we don't find an include directive, just comment out the code.
-AC_MSG_CHECKING([for style of include used by $am_make])
 am__include="#"
 am__quote=
-_am_result=none
+# BSD make does it like this.
-# First try GNU make style include.
+echo '.include "confinc.mk" # ignored' > confmf.BSD
-echo "include confinc" > confmf
+# Other make implementations (GNU, Solaris 10, AIX) do it like this.
-# Ignore all kinds of additional output from 'make'.
+echo 'include confinc.mk # ignored' > confmf.GNU
-case `$am_make -s -f confmf 2> /dev/null` in #(
+_am_result=no
-*the\ am__doit\ target*)
+for s in GNU BSD; do
-  am__include=include
+  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
-  am__quote=
+  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
-  _am_result=GNU
+      ['0:this is the am__doit target'],
-  ;;
+      [AS_CASE([$s],
-esac
+          [BSD], [am__include='.include' am__quote='"'],
-# Now try BSD make style include.
+          [am__include='include' am__quote=''])])
-if test "$am__include" = "#"; then
+  if test "$am__include" != "#"; then
-   echo '.include "confinc"' > confmf
+    _am_result="yes ($s style)"
-   case `$am_make -s -f confmf 2> /dev/null` in #(
+    break
-   *the\ am__doit\ target*)
+  fi
-     am__include=.include
+done
-     am__quote="\""
+rm -f confinc.* confmf.*
-     _am_result=BSD
+AC_MSG_RESULT([${_am_result}])
-     ;;
+AC_SUBST([am__include])])
-   esac
+AC_SUBST([am__quote])])
-fi
-AC_SUBST([am__include])
-AC_SUBST([am__quote])
-AC_MSG_RESULT([$_am_result])
-rm -f confinc confmf
-])
 
 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 
-# Copyright (C) 1997-2013 Free Software Foundation, Inc.
+# Copyright (C) 1997-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -723,7 +721,7 @@ fi
 
 # Helper functions for option handling.                     -*- Autoconf -*-
 
-# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -752,9 +750,73 @@ AC_DEFUN([_AM_SET_OPTIONS],
 AC_DEFUN([_AM_IF_OPTION],
 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_PROG_CC_C_O
+# ---------------
+# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
+# to automatically call this.
+AC_DEFUN([_AM_PROG_CC_C_O],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+AC_REQUIRE_AUX_FILE([compile])dnl
+AC_LANG_PUSH([C])dnl
+AC_CACHE_CHECK(
+  [whether $CC understands -c and -o together],
+  [am_cv_prog_cc_c_o],
+  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
+  # Make sure it works both with $CC and with simple cc.
+  # Following AC_PROG_CC_C_O, we do the test twice because some
+  # compilers refuse to overwrite an existing .o file with -o,
+  # though they will create one.
+  am_cv_prog_cc_c_o=yes
+  for am_i in 1 2; do
+    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
+         && test -f conftest2.$ac_objext; then
+      : OK
+    else
+      am_cv_prog_cc_c_o=no
+      break
+    fi
+  done
+  rm -f core conftest*
+  unset am_i])
+if test "$am_cv_prog_cc_c_o" != yes; then
+   # Losing compiler, so override with the script.
+   # FIXME: It is wrong to rewrite CC.
+   # But if we don't then we get into trouble of one sort or another.
+   # A longer-term fix would be to have automake use am__CC in this case,
+   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+   CC="$am_aux_dir/compile $CC"
+fi
+AC_LANG_POP([C])])
+
+# For backward compatibility.
+AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
+
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_RUN_LOG(COMMAND)
+# -------------------
+# Run COMMAND, save the exit status in ac_status, and log it.
+# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
+AC_DEFUN([AM_RUN_LOG],
+[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
+   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   (exit $ac_status); }])
+
 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 
-# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -835,7 +897,7 @@ AC_CONFIG_COMMANDS_PRE(
 rm -f conftest.file
 ])
 
-# Copyright (C) 2009-2013 Free Software Foundation, Inc.
+# Copyright (C) 2009-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -895,7 +957,7 @@ AC_SUBST([AM_BACKSLASH])dnl
 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 ])
 
-# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -923,7 +985,7 @@ fi
 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 
-# Copyright (C) 2006-2013 Free Software Foundation, Inc.
+# Copyright (C) 2006-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -942,7 +1004,7 @@ AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 
 # Check how to create a tarball.                            -*- Autoconf -*-
 
-# Copyright (C) 2004-2013 Free Software Foundation, Inc.
+# Copyright (C) 2004-2020 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1074,6 +1136,11 @@ AC_SUBST([am__untar])
 ]) # _AM_PROG_TAR
 
 m4_include([m4/attribute.m4])
+m4_include([m4/ax_append_flag.m4])
+m4_include([m4/ax_cflags_warn_all.m4])
+m4_include([m4/ax_check_compile_flag.m4])
+m4_include([m4/ax_check_link_flag.m4])
+m4_include([m4/ax_require_defined.m4])
 m4_include([m4/lzo.m4])
 m4_include([m4/openssl.m4])
 m4_include([m4/zlib.m4])

compile

@@ -0,0 +1,348 @@
+#! /bin/sh
+# Wrapper for compilers which do not understand '-c -o'.
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
+# Written by Tom Tromey <tromey@cygnus.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+nl='
+'
+
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent tools from complaining about whitespace usage.
+IFS=" ""	$nl"
+
+file_conv=
+
+# func_file_conv build_file lazy
+# Convert a $build file to $host form and store it in $file
+# Currently only supports Windows hosts. If the determined conversion
+# type is listed in (the comma separated) LAZY, no conversion will
+# take place.
+func_file_conv ()
+{
+  file=$1
+  case $file in
+    / | /[!/]*) # absolute file, and not a UNC file
+      if test -z "$file_conv"; then
+	# lazily determine how to convert abs files
+	case `uname -s` in
+	  MINGW*)
+	    file_conv=mingw
+	    ;;
+	  CYGWIN* | MSYS*)
+	    file_conv=cygwin
+	    ;;
+	  *)
+	    file_conv=wine
+	    ;;
+	esac
+      fi
+      case $file_conv/,$2, in
+	*,$file_conv,*)
+	  ;;
+	mingw/*)
+	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
+	  ;;
+	cygwin/* | msys/*)
+	  file=`cygpath -m "$file" || echo "$file"`
+	  ;;
+	wine/*)
+	  file=`winepath -w "$file" || echo "$file"`
+	  ;;
+      esac
+      ;;
+  esac
+}
+
+# func_cl_dashL linkdir
+# Make cl look for libraries in LINKDIR
+func_cl_dashL ()
+{
+  func_file_conv "$1"
+  if test -z "$lib_path"; then
+    lib_path=$file
+  else
+    lib_path="$lib_path;$file"
+  fi
+  linker_opts="$linker_opts -LIBPATH:$file"
+}
+
+# func_cl_dashl library
+# Do a library search-path lookup for cl
+func_cl_dashl ()
+{
+  lib=$1
+  found=no
+  save_IFS=$IFS
+  IFS=';'
+  for dir in $lib_path $LIB
+  do
+    IFS=$save_IFS
+    if $shared && test -f "$dir/$lib.dll.lib"; then
+      found=yes
+      lib=$dir/$lib.dll.lib
+      break
+    fi
+    if test -f "$dir/$lib.lib"; then
+      found=yes
+      lib=$dir/$lib.lib
+      break
+    fi
+    if test -f "$dir/lib$lib.a"; then
+      found=yes
+      lib=$dir/lib$lib.a
+      break
+    fi
+  done
+  IFS=$save_IFS
+
+  if test "$found" != yes; then
+    lib=$lib.lib
+  fi
+}
+
+# func_cl_wrapper cl arg...
+# Adjust compile command to suit cl
+func_cl_wrapper ()
+{
+  # Assume a capable shell
+  lib_path=
+  shared=:
+  linker_opts=
+  for arg
+  do
+    if test -n "$eat"; then
+      eat=
+    else
+      case $1 in
+	-o)
+	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
+	  eat=1
+	  case $2 in
+	    *.o | *.[oO][bB][jJ])
+	      func_file_conv "$2"
+	      set x "$@" -Fo"$file"
+	      shift
+	      ;;
+	    *)
+	      func_file_conv "$2"
+	      set x "$@" -Fe"$file"
+	      shift
+	      ;;
+	  esac
+	  ;;
+	-I)
+	  eat=1
+	  func_file_conv "$2" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-I*)
+	  func_file_conv "${1#-I}" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-l)
+	  eat=1
+	  func_cl_dashl "$2"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-l*)
+	  func_cl_dashl "${1#-l}"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-L)
+	  eat=1
+	  func_cl_dashL "$2"
+	  ;;
+	-L*)
+	  func_cl_dashL "${1#-L}"
+	  ;;
+	-static)
+	  shared=false
+	  ;;
+	-Wl,*)
+	  arg=${1#-Wl,}
+	  save_ifs="$IFS"; IFS=','
+	  for flag in $arg; do
+	    IFS="$save_ifs"
+	    linker_opts="$linker_opts $flag"
+	  done
+	  IFS="$save_ifs"
+	  ;;
+	-Xlinker)
+	  eat=1
+	  linker_opts="$linker_opts $2"
+	  ;;
+	-*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
+	  func_file_conv "$1"
+	  set x "$@" -Tp"$file"
+	  shift
+	  ;;
+	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
+	  func_file_conv "$1" mingw
+	  set x "$@" "$file"
+	  shift
+	  ;;
+	*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+      esac
+    fi
+    shift
+  done
+  if test -n "$linker_opts"; then
+    linker_opts="-link$linker_opts"
+  fi
+  exec "$@" $linker_opts
+  exit 1
+}
+
+eat=
+
+case $1 in
+  '')
+     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+     exit 1;
+     ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: compile [--help] [--version] PROGRAM [ARGS]
+
+Wrapper for compilers which do not understand '-c -o'.
+Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
+arguments, and rename the output as expected.
+
+If you are trying to build a whole package this is not the
+right script to run: please start by reading the file 'INSTALL'.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "compile $scriptversion"
+    exit $?
+    ;;
+  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
+  icl | *[/\\]icl | icl.exe | *[/\\]icl.exe )
+    func_cl_wrapper "$@"      # Doesn't return...
+    ;;
+esac
+
+ofile=
+cfile=
+
+for arg
+do
+  if test -n "$eat"; then
+    eat=
+  else
+    case $1 in
+      -o)
+	# configure might choose to run compile as 'compile cc -o foo foo.c'.
+	# So we strip '-o arg' only if arg is an object.
+	eat=1
+	case $2 in
+	  *.o | *.obj)
+	    ofile=$2
+	    ;;
+	  *)
+	    set x "$@" -o "$2"
+	    shift
+	    ;;
+	esac
+	;;
+      *.c)
+	cfile=$1
+	set x "$@" "$1"
+	shift
+	;;
+      *)
+	set x "$@" "$1"
+	shift
+	;;
+    esac
+  fi
+  shift
+done
+
+if test -z "$ofile" || test -z "$cfile"; then
+  # If no '-o' option was seen then we might have been invoked from a
+  # pattern rule where we don't need one.  That is ok -- this is a
+  # normal compilation that the losing compiler can handle.  If no
+  # '.c' file was seen then we are probably linking.  That is also
+  # ok.
+  exec "$@"
+fi
+
+# Name of file we expect compiler to create.
+cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
+
+# Create the lock directory.
+# Note: use '[/\\:.-]' here to ensure that we don't use the same name
+# that we are using for the .o file.  Also, base the name on the expected
+# object file name, since that is what matters with a parallel build.
+lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
+while true; do
+  if mkdir "$lockdir" >/dev/null 2>&1; then
+    break
+  fi
+  sleep 1
+done
+# FIXME: race condition here if user kills between mkdir and trap.
+trap "rmdir '$lockdir'; exit 1" 1 2 15
+
+# Run the compile.
+"$@"
+ret=$?
+
+if test -f "$cofile"; then
+  test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
+elif test -f "${cofile}bj"; then
+  test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
+fi
+
+rmdir "$lockdir"
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:

config.h.in

@@ -1,12 +1,4 @@
-/* config.h.in.  Generated from configure.in by autoheader.  */
+/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* Define to one of `_getb67', `GETB67', `getb67' for Cray-2 and Cray-YMP
-   systems. This function is required for `alloca.c' support on those systems.
-   */
-#undef CRAY_STACKSEG_END
-
-/* Define to 1 if using `alloca.c'. */
-#undef C_ALLOCA
 
 /* Support for jumbograms (packets up to 9000 bytes) */
 #undef ENABLE_JUMBOGRAMS
@@ -20,19 +12,18 @@
 /* Support for VDE */
 #undef ENABLE_VDE
 
-/* Define to 1 if you have `alloca', as a function or macro. */
-#undef HAVE_ALLOCA
-
-/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix).
-   */
-#undef HAVE_ALLOCA_H
-
 /* Define to 1 if you have the <arpa/inet.h> header file. */
 #undef HAVE_ARPA_INET_H
 
+/* Define to 1 if you have the <arpa/nameser.h> header file. */
+#undef HAVE_ARPA_NAMESER_H
+
 /* Define to 1 if you have the `asprintf' function. */
 #undef HAVE_ASPRINTF
 
+/* Define to 1 if you have the `BN_GENCB_new' function. */
+#undef HAVE_BN_GENCB_NEW
+
 /* Unknown BSD variant */
 #undef HAVE_BSD
 
@@ -45,6 +36,10 @@
 /* Darwin (MacOS/X) */
 #undef HAVE_DARWIN
 
+/* Define to 1 if you have the declaration of `EVP_aes_256_cfb', and to 0 if
+   you don't. */
+#undef HAVE_DECL_EVP_AES_256_CFB
+
 /* Define to 1 if you have the declaration of `freeaddrinfo', and to 0 if you
    don't. */
 #undef HAVE_DECL_FREEADDRINFO
@@ -61,18 +56,35 @@
    don't. */
 #undef HAVE_DECL_GETNAMEINFO
 
+/* Define to 1 if you have the declaration of `OpenSSL_add_all_algorithms',
+   and to 0 if you don't. */
+#undef HAVE_DECL_OPENSSL_ADD_ALL_ALGORITHMS
+
+/* Define to 1 if you have the declaration of `res_init', and to 0 if you
+   don't. */
+#undef HAVE_DECL_RES_INIT
+
+/* Define to 1 if you have the `devname' function. */
+#undef HAVE_DEVNAME
+
 /* Define to 1 if you have the <dirent.h> header file. */
 #undef HAVE_DIRENT_H
 
 /* DragonFly */
 #undef HAVE_DRAGONFLY
 
+/* Define to 1 if you have the `EVP_CIPHER_CTX_new' function. */
+#undef HAVE_EVP_CIPHER_CTX_NEW
+
 /* Define to 1 if you have the `EVP_EncryptInit_ex' function. */
 #undef HAVE_EVP_ENCRYPTINIT_EX
 
 /* Define to 1 if you have the `fchmod' function. */
 #undef HAVE_FCHMOD
 
+/* Define to 1 if you have the `fdevname' function. */
+#undef HAVE_FDEVNAME
+
 /* Define to 1 if you have the `flock' function. */
 #undef HAVE_FLOCK
 
@@ -82,21 +94,24 @@
 /* FreeBSD */
 #undef HAVE_FREEBSD
 
-/* Define to 1 if you have the `ftime' function. */
+/* Define to 1 if you have the <getopt.h> header file. */
-#undef HAVE_FTIME
+#undef HAVE_GETOPT_H
+
+/* getopt_long() */
+#undef HAVE_GETOPT_LONG
 
 /* Define to 1 if you have the `gettimeofday' function. */
 #undef HAVE_GETTIMEOFDAY
 
-/* Define to 1 if you have the `get_current_dir_name' function. */
-#undef HAVE_GET_CURRENT_DIR_NAME
-
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
 /* Define to 1 if you have the `nsl' library (-lnsl). */
 #undef HAVE_LIBNSL
 
+/* Define to 1 if you have the `resolv' library (-lresolv). */
+#undef HAVE_LIBRESOLV
+
 /* Define to 1 if you have the `socket' library (-lsocket). */
 #undef HAVE_LIBSOCKET
 
@@ -121,10 +136,6 @@
 /* Define to 1 if you have the <lzo/lzo1x.h> header file. */
 #undef HAVE_LZO_LZO1X_H
 
-/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
-   to 0 otherwise. */
-#undef HAVE_MALLOC
-
 /* Define to 1 if you have the <memory.h> header file. */
 #undef HAVE_MEMORY_H
 
@@ -188,6 +199,9 @@
 /* Define to 1 if you have the <net/if_types.h> header file. */
 #undef HAVE_NET_IF_TYPES_H
 
+/* Define to 1 if you have the <net/if_utun.h> header file. */
+#undef HAVE_NET_IF_UTUN_H
+
 /* Define to 1 if you have the <net/tap/if_tap.h> header file. */
 #undef HAVE_NET_TAP_IF_TAP_H
 
@@ -224,18 +238,14 @@
 /* Define to 1 if you have the `putenv' function. */
 #undef HAVE_PUTENV
 
-/* Define to 1 if you have the `random' function. */
+/* Define to 1 if you have the `RAND_bytes' function. */
-#undef HAVE_RANDOM
+#undef HAVE_RAND_BYTES
 
-/* Define to 1 if you have the `RAND_pseudo_bytes' function. */
+/* Define to 1 if you have the <resolv.h> header file. */
-#undef HAVE_RAND_PSEUDO_BYTES
+#undef HAVE_RESOLV_H
 
-/* Define to 1 if your system has a GNU libc compatible `realloc' function,
+/* Define to 1 if you have the `RSA_set0_key' function. */
-   and to 0 otherwise. */
+#undef HAVE_RSA_SET0_KEY
-#undef HAVE_REALLOC
-
-/* Define to 1 if you have the `select' function. */
-#undef HAVE_SELECT
 
 /* Define to 1 if the system has the type `socklen_t'. */
 #undef HAVE_SOCKLEN_T
@@ -243,21 +253,12 @@
 /* Solaris/SunOS */
 #undef HAVE_SOLARIS
 
-/* Define to 1 if you have the <stdbool.h> header file. */
-#undef HAVE_STDBOOL_H
-
 /* Define to 1 if you have the <stdint.h> header file. */
 #undef HAVE_STDINT_H
 
 /* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 
-/* Define to 1 if you have the `strdup' function. */
-#undef HAVE_STRDUP
-
-/* Define to 1 if you have the `strerror' function. */
-#undef HAVE_STRERROR
-
 /* Define to 1 if you have the <strings.h> header file. */
 #undef HAVE_STRINGS_H
 
@@ -267,9 +268,6 @@
 /* Define to 1 if you have the `strsignal' function. */
 #undef HAVE_STRSIGNAL
 
-/* Define to 1 if you have the `strtol' function. */
-#undef HAVE_STRTOL
-
 /* Define to 1 if the system has the type `struct addrinfo'. */
 #undef HAVE_STRUCT_ADDRINFO
 
@@ -348,9 +346,6 @@
 /* Define to 1 if you have the <sys/wait.h> header file. */
 #undef HAVE_SYS_WAIT_H
 
-/* Define to 1 if you have the <time.h> header file. */
-#undef HAVE_TIME_H
-
 /* Define to 1 if you have the <unistd.h> header file. */
 #undef HAVE_UNISTD_H
 
@@ -363,9 +358,6 @@
 /* Define to 1 if you have the `vsyslog' function. */
 #undef HAVE_VSYSLOG
 
-/* Define to 1 if you have the `writev' function. */
-#undef HAVE_WRITEV
-
 /* have zlib compression support */
 #undef HAVE_ZLIB
 
@@ -399,23 +391,9 @@
 /* Define as the return type of signal handlers (`int' or `void'). */
 #undef RETSIGTYPE
 
-/* If using the C implementation of alloca, define if you know the
-   direction of stack growth for your system; otherwise it will be
-   automatically deduced at runtime.
-	STACK_DIRECTION > 0 => grows toward higher addresses
-	STACK_DIRECTION < 0 => grows toward lower addresses
-	STACK_DIRECTION = 0 => direction of growth unknown */
-#undef STACK_DIRECTION
-
 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
 
-/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
-#undef TIME_WITH_SYS_TIME
-
-/* Define to 1 if your <sys/time.h> declares `struct tm'. */
-#undef TM_IN_SYS_TIME
-
 /* Enable extensions on AIX 3, Interix.  */
 #ifndef _ALL_SOURCE
 # undef _ALL_SOURCE
@@ -460,21 +438,5 @@
 /* Defined if the __malloc__ attribute is not supported. */
 #undef __malloc__
 
-/* Define to empty if `const' does not conform to ANSI C. */
-#undef const
-
-/* Define to rpl_malloc if the replacement function should be used. */
-#undef malloc
-
 /* Define to `int' if <sys/types.h> does not define. */
 #undef pid_t
-
-/* Define to rpl_realloc if the replacement function should be used. */
-#undef realloc
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-#undef size_t
-
-/* Define to empty if the keyword `volatile' does not work. Warning: valid
-   code using `volatile' can become incorrect without. Disable with care. */
-#undef volatile

config.sub

@@ -1,8 +1,8 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright 1992-2013 Free Software Foundation, Inc.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
 
-timestamp='2013-08-10'
+timestamp='2018-02-22'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@ timestamp='2013-08-10'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -25,7 +25,7 @@ timestamp='2013-08-10'
 # of the GNU General Public License, version 3 ("GPLv3").
 
 
-# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+# Please send patches to <config-patches@gnu.org>.
 #
 # Configuration subroutine to validate and canonicalize a configuration type.
 # Supply the specified configuration type as an argument.
@@ -33,7 +33,7 @@ timestamp='2013-08-10'
 # Otherwise, we print the canonical config type on stdout and succeed.
 
 # You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
 
 # This file is supposed to be the same for all GNU packages
 # and recognize all the CPU types, system types and aliases
@@ -53,12 +53,11 @@ timestamp='2013-08-10'
 me=`echo "$0" | sed -e 's,.*/,,'`
 
 usage="\
-Usage: $0 [OPTION] CPU-MFR-OPSYS
+Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
-       $0 [OPTION] ALIAS
 
 Canonicalize a configuration name.
 
-Operation modes:
+Options:
   -h, --help         print this help, then exit
   -t, --time-stamp   print date of last modification, then exit
   -v, --version      print version number, then exit
@@ -68,7 +67,7 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright 1992-2013 Free Software Foundation, Inc.
+Copyright 1992-2018 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -95,7 +94,7 @@ while test $# -gt 0 ; do
 
     *local*)
        # First pass through any local machine types.
-       echo $1
+       echo "$1"
        exit ;;
 
     * )
@@ -113,24 +112,24 @@ esac
 
 # Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
 # Here we must recognize all the valid KERNEL-OS combinations.
-maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+maybe_os=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
   linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
-  knetbsd*-gnu* | netbsd*-gnu* | \
+  knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \
-  kopensolaris*-gnu* | \
+  kopensolaris*-gnu* | cloudabi*-eabi* | \
   storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os
-    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
+    basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
     ;;
   android-linux)
     os=-linux-android
-    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
+    basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
     ;;
   *)
-    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
+    basic_machine=`echo "$1" | sed 's/-[^-]*$//'`
-    if [ $basic_machine != $1 ]
+    if [ "$basic_machine" != "$1" ]
-    then os=`echo $1 | sed 's/.*-/-/'`
+    then os=`echo "$1" | sed 's/.*-/-/'`
     else os=; fi
     ;;
 esac
@@ -179,44 +178,44 @@ case $os in
 		;;
 	-sco6)
 		os=-sco5v6
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
 		;;
 	-sco5)
 		os=-sco3.2v5
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
 		;;
 	-sco4)
 		os=-sco3.2v4
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
 		;;
 	-sco3.2.[4-9]*)
 		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
 		;;
 	-sco3.2v[4-9]*)
 		# Don't forget version if it is 3.2v4 or newer.
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
 		;;
 	-sco5v6*)
 		# Don't forget version if it is 3.2v4 or newer.
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
 		;;
 	-sco*)
 		os=-sco3.2v2
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
 		;;
 	-udk*)
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
 		;;
 	-isc)
 		os=-isc2.2
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
 		;;
 	-clix*)
 		basic_machine=clipper-intergraph
 		;;
 	-isc*)
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
 		;;
 	-lynx*178)
 		os=-lynxos178
@@ -228,10 +227,7 @@ case $os in
 		os=-lynxos
 		;;
 	-ptx*)
-		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-sequent/'`
-		;;
-	-windowsnt*)
-		os=`echo $os | sed -e 's/windowsnt/winnt/'`
 		;;
 	-psos*)
 		os=-psos
@@ -255,16 +251,18 @@ case $basic_machine in
 	| arc | arceb \
 	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
 	| avr | avr32 \
+	| ba \
 	| be32 | be64 \
 	| bfin \
 	| c4x | c8051 | clipper \
 	| d10v | d30v | dlx | dsp16xx \
-	| epiphany \
+	| e2k | epiphany \
-	| fido | fr30 | frv \
+	| fido | fr30 | frv | ft32 \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
 	| hexagon \
-	| i370 | i860 | i960 | ia64 \
+	| i370 | i860 | i960 | ia16 | ia64 \
 	| ip2k | iq2000 \
+	| k1om \
 	| le32 | le64 \
 	| lm32 \
 	| m32c | m32r | m32rle | m68000 | m68k | m88k \
@@ -282,8 +280,10 @@ case $basic_machine in
 	| mips64vr5900 | mips64vr5900el \
 	| mipsisa32 | mipsisa32el \
 	| mipsisa32r2 | mipsisa32r2el \
+	| mipsisa32r6 | mipsisa32r6el \
 	| mipsisa64 | mipsisa64el \
 	| mipsisa64r2 | mipsisa64r2el \
+	| mipsisa64r6 | mipsisa64r6el \
 	| mipsisa64sb1 | mipsisa64sb1el \
 	| mipsisa64sr71k | mipsisa64sr71kel \
 	| mipsr5900 | mipsr5900el \
@@ -295,14 +295,15 @@ case $basic_machine in
 	| nds32 | nds32le | nds32be \
 	| nios | nios2 | nios2eb | nios2el \
 	| ns16k | ns32k \
-	| open8 \
+	| open8 | or1k | or1knd | or32 \
-	| or1k | or32 \
+	| pdp10 | pj | pjl \
-	| pdp10 | pdp11 | pj | pjl \
 	| powerpc | powerpc64 | powerpc64le | powerpcle \
+	| pru \
 	| pyramid \
+	| riscv32 | riscv64 \
 	| rl78 | rx \
 	| score \
-	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[234]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
 	| sh64 | sh64le \
 	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
 	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
@@ -310,7 +311,8 @@ case $basic_machine in
 	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
 	| ubicom32 \
 	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
-	| we32k \
+	| visium \
+	| wasm32 \
 	| x86 | xc16x | xstormy16 | xtensa \
 	| z8k | z80)
 		basic_machine=$basic_machine-unknown
@@ -324,11 +326,14 @@ case $basic_machine in
 	c6x)
 		basic_machine=tic6x-unknown
 		;;
-	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | picochip)
+	leon|leon[3-9])
+		basic_machine=sparc-$basic_machine
+		;;
+	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
 		basic_machine=$basic_machine-unknown
 		os=-none
 		;;
-	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
+	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65)
 		;;
 	ms1)
 		basic_machine=mt-unknown
@@ -357,7 +362,7 @@ case $basic_machine in
 	  ;;
 	# Object if more than one company name word.
 	*-*-*)
-		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2
 		exit 1
 		;;
 	# Recognize the basic CPU types with company name.
@@ -369,18 +374,20 @@ case $basic_machine in
 	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
 	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
 	| avr-* | avr32-* \
+	| ba-* \
 	| be32-* | be64-* \
 	| bfin-* | bs2000-* \
 	| c[123]* | c30-* | [cjt]90-* | c4x-* \
 	| c8051-* | clipper-* | craynv-* | cydra-* \
 	| d10v-* | d30v-* | dlx-* \
-	| elxsi-* \
+	| e2k-* | elxsi-* \
 	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
 	| h8300-* | h8500-* \
 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
 	| hexagon-* \
-	| i*86-* | i860-* | i960-* | ia64-* \
+	| i*86-* | i860-* | i960-* | ia16-* | ia64-* \
 	| ip2k-* | iq2000-* \
+	| k1om-* \
 	| le32-* | le64-* \
 	| lm32-* \
 	| m32c-* | m32r-* | m32rle-* \
@@ -400,8 +407,10 @@ case $basic_machine in
 	| mips64vr5900-* | mips64vr5900el-* \
 	| mipsisa32-* | mipsisa32el-* \
 	| mipsisa32r2-* | mipsisa32r2el-* \
+	| mipsisa32r6-* | mipsisa32r6el-* \
 	| mipsisa64-* | mipsisa64el-* \
 	| mipsisa64r2-* | mipsisa64r2el-* \
+	| mipsisa64r6-* | mipsisa64r6el-* \
 	| mipsisa64sb1-* | mipsisa64sb1el-* \
 	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
 	| mipsr5900-* | mipsr5900el-* \
@@ -413,16 +422,19 @@ case $basic_machine in
 	| nios-* | nios2-* | nios2eb-* | nios2el-* \
 	| none-* | np1-* | ns16k-* | ns32k-* \
 	| open8-* \
+	| or1k*-* \
 	| orion-* \
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
 	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+	| pru-* \
 	| pyramid-* \
+	| riscv32-* | riscv64-* \
 	| rl78-* | romp-* | rs6000-* | rx-* \
 	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
 	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
 	| sparclite-* \
-	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \
 	| tahoe-* \
 	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
 	| tile*-* \
@@ -430,6 +442,8 @@ case $basic_machine in
 	| ubicom32-* \
 	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
 	| vax-* \
+	| visium-* \
+	| wasm32-* \
 	| we32k-* \
 	| x86-* | x86_64-* | xc16x-* | xps100-* \
 	| xstormy16-* | xtensa*-* \
@@ -443,7 +457,7 @@ case $basic_machine in
 	# Recognize the various machine names and aliases which stand
 	# for a CPU type and a company and sometimes even an OS.
 	386bsd)
-		basic_machine=i386-unknown
+		basic_machine=i386-pc
 		os=-bsd
 		;;
 	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
@@ -477,7 +491,7 @@ case $basic_machine in
 		basic_machine=x86_64-pc
 		;;
 	amd64-*)
-		basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=x86_64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
 	amdahl)
 		basic_machine=580-amdahl
@@ -506,6 +520,9 @@ case $basic_machine in
 		basic_machine=i386-pc
 		os=-aros
 		;;
+	asmjs)
+		basic_machine=asmjs-unknown
+		;;
 	aux)
 		basic_machine=m68k-apple
 		os=-aux
@@ -519,7 +536,7 @@ case $basic_machine in
 		os=-linux
 		;;
 	blackfin-*)
-		basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=bfin-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		os=-linux
 		;;
 	bluegene*)
@@ -527,13 +544,13 @@ case $basic_machine in
 		os=-cnk
 		;;
 	c54x-*)
-		basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=tic54x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
 	c55x-*)
-		basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=tic55x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
 	c6x-*)
-		basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=tic6x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
 	c90)
 		basic_machine=c90-cray
@@ -622,10 +639,18 @@ case $basic_machine in
 		basic_machine=rs6000-bull
 		os=-bosx
 		;;
-	dpx2* | dpx2*-bull)
+	dpx2*)
 		basic_machine=m68k-bull
 		os=-sysv3
 		;;
+	e500v[12])
+		basic_machine=powerpc-unknown
+		os=$os"spe"
+		;;
+	e500v[12]-*)
+		basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		os=$os"spe"
+		;;
 	ebmon29k)
 		basic_machine=a29k-amd
 		os=-ebmon
@@ -715,9 +740,6 @@ case $basic_machine in
 	hp9k8[0-9][0-9] | hp8[0-9][0-9])
 		basic_machine=hppa1.0-hp
 		;;
-	hppa-next)
-		os=-nextstep3
-		;;
 	hppaosf)
 		basic_machine=hppa1.1-hp
 		os=-osf
@@ -730,26 +752,26 @@ case $basic_machine in
 		basic_machine=i370-ibm
 		;;
 	i*86v32)
-		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
 		os=-sysv32
 		;;
 	i*86v4*)
-		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
 		os=-sysv4
 		;;
 	i*86v)
-		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
 		os=-sysv
 		;;
 	i*86sol2)
-		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
 		os=-solaris2
 		;;
 	i386mach)
 		basic_machine=i386-mach
 		os=-mach
 		;;
-	i386-vsta | vsta)
+	vsta)
 		basic_machine=i386-unknown
 		os=-vsta
 		;;
@@ -767,17 +789,17 @@ case $basic_machine in
 		basic_machine=m68k-isi
 		os=-sysv
 		;;
+	leon-*|leon[3-9]-*)
+		basic_machine=sparc-`echo "$basic_machine" | sed 's/-.*//'`
+		;;
 	m68knommu)
 		basic_machine=m68k-unknown
 		os=-linux
 		;;
 	m68knommu-*)
-		basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=m68k-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		os=-linux
 		;;
-	m88k-omron*)
-		basic_machine=m88k-omron
-		;;
 	magnum | m3230)
 		basic_machine=mips-mips
 		os=-sysv
@@ -809,10 +831,10 @@ case $basic_machine in
 		os=-mint
 		;;
 	mips3*-*)
-		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
+		basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`
 		;;
 	mips3*)
-		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
+		basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`-unknown
 		;;
 	monitor)
 		basic_machine=m68k-rom68k
@@ -822,12 +844,16 @@ case $basic_machine in
 		basic_machine=powerpc-unknown
 		os=-morphos
 		;;
+	moxiebox)
+		basic_machine=moxie-unknown
+		os=-moxiebox
+		;;
 	msdos)
 		basic_machine=i386-pc
 		os=-msdos
 		;;
 	ms1-*)
-		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
+		basic_machine=`echo "$basic_machine" | sed -e 's/ms1-/mt-/'`
 		;;
 	msys)
 		basic_machine=i686-pc
@@ -869,7 +895,7 @@ case $basic_machine in
 		basic_machine=v70-nec
 		os=-sysv
 		;;
-	next | m*-next )
+	next | m*-next)
 		basic_machine=m68k-next
 		case $os in
 		    -nextstep* )
@@ -914,6 +940,12 @@ case $basic_machine in
 	nsr-tandem)
 		basic_machine=nsr-tandem
 		;;
+	nsv-tandem)
+		basic_machine=nsv-tandem
+		;;
+	nsx-tandem)
+		basic_machine=nsx-tandem
+		;;
 	op50n-* | op60c-*)
 		basic_machine=hppa1.1-oki
 		os=-proelf
@@ -946,7 +978,7 @@ case $basic_machine in
 		os=-linux
 		;;
 	parisc-*)
-		basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=hppa-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		os=-linux
 		;;
 	pbd)
@@ -962,7 +994,7 @@ case $basic_machine in
 		basic_machine=i386-pc
 		;;
 	pc98-*)
-		basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=i386-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
 	pentium | p5 | k5 | k6 | nexgen | viac3)
 		basic_machine=i586-pc
@@ -977,16 +1009,16 @@ case $basic_machine in
 		basic_machine=i786-pc
 		;;
 	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
-		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=i586-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
 	pentiumpro-* | p6-* | 6x86-* | athlon-*)
-		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
 	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
-		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
 	pentium4-*)
-		basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=i786-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
 	pn)
 		basic_machine=pn-gould
@@ -996,23 +1028,23 @@ case $basic_machine in
 	ppc | ppcbe)	basic_machine=powerpc-unknown
 		;;
 	ppc-* | ppcbe-*)
-		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
-	ppcle | powerpclittle | ppc-le | powerpc-little)
+	ppcle | powerpclittle)
 		basic_machine=powerpcle-unknown
 		;;
 	ppcle-* | powerpclittle-*)
-		basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=powerpcle-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
 	ppc64)	basic_machine=powerpc64-unknown
 		;;
-	ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
+	ppc64-*) basic_machine=powerpc64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
-	ppc64le | powerpc64little | ppc64-le | powerpc64-little)
+	ppc64le | powerpc64little)
 		basic_machine=powerpc64le-unknown
 		;;
 	ppc64le-* | powerpc64little-*)
-		basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=powerpc64le-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
 	ps2)
 		basic_machine=i386-ibm
@@ -1066,17 +1098,10 @@ case $basic_machine in
 	sequent)
 		basic_machine=i386-sequent
 		;;
-	sh)
-		basic_machine=sh-hitachi
-		os=-hms
-		;;
 	sh5el)
 		basic_machine=sh5le-unknown
 		;;
-	sh64)
+	simso-wrs)
-		basic_machine=sh64-unknown
-		;;
-	sparclite-wrs | simso-wrs)
 		basic_machine=sparclite-wrs
 		os=-vxworks
 		;;
@@ -1095,7 +1120,7 @@ case $basic_machine in
 		os=-sysv4
 		;;
 	strongarm-* | thumb-*)
-		basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=arm-`echo "$basic_machine" | sed 's/^[^-]*-//'`
 		;;
 	sun2)
 		basic_machine=m68000-sun
@@ -1217,6 +1242,9 @@ case $basic_machine in
 		basic_machine=hppa1.1-winbond
 		os=-proelf
 		;;
+	x64)
+		basic_machine=x86_64-pc
+		;;
 	xbox)
 		basic_machine=i686-pc
 		os=-mingw32
@@ -1225,20 +1253,12 @@ case $basic_machine in
 		basic_machine=xps100-honeywell
 		;;
 	xscale-* | xscalee[bl]-*)
-		basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'`
+		basic_machine=`echo "$basic_machine" | sed 's/^xscale/arm/'`
 		;;
 	ymp)
 		basic_machine=ymp-cray
 		os=-unicos
 		;;
-	z8k-*-coff)
-		basic_machine=z8k-unknown
-		os=-sim
-		;;
-	z80-*-coff)
-		basic_machine=z80-unknown
-		os=-sim
-		;;
 	none)
 		basic_machine=none-none
 		os=-none
@@ -1267,10 +1287,6 @@ case $basic_machine in
 	vax)
 		basic_machine=vax-dec
 		;;
-	pdp10)
-		# there are many clones, so DEC is not a safe bet
-		basic_machine=pdp10-unknown
-		;;
 	pdp11)
 		basic_machine=pdp11-dec
 		;;
@@ -1280,9 +1296,6 @@ case $basic_machine in
 	sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
 		basic_machine=sh-unknown
 		;;
-	sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
-		basic_machine=sparc-sun
-		;;
 	cydra)
 		basic_machine=cydra-cydrome
 		;;
@@ -1302,7 +1315,7 @@ case $basic_machine in
 		# Make sure to match an already-canonicalized machine name.
 		;;
 	*)
-		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2
 		exit 1
 		;;
 esac
@@ -1310,10 +1323,10 @@ esac
 # Here we canonicalize certain aliases for manufacturers.
 case $basic_machine in
 	*-digital*)
-		basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
+		basic_machine=`echo "$basic_machine" | sed 's/digital.*/dec/'`
 		;;
 	*-commodore*)
-		basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
+		basic_machine=`echo "$basic_machine" | sed 's/commodore.*/cbm/'`
 		;;
 	*)
 		;;
@@ -1324,8 +1337,8 @@ esac
 if [ x"$os" != x"" ]
 then
 case $os in
-	# First match some system type aliases
+	# First match some system type aliases that might get confused
-	# that might get confused with valid system types.
+	# with valid system types.
 	# -solaris* is a basic system type, with this one exception.
 	-auroraux)
 		os=-auroraux
@@ -1336,45 +1349,48 @@ case $os in
 	-solaris)
 		os=-solaris2
 		;;
-	-svr4*)
-		os=-sysv4
-		;;
 	-unixware*)
 		os=-sysv4.2uw
 		;;
 	-gnu/linux*)
 		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
 		;;
-	# First accept the basic system types.
+	# es1800 is here to avoid being matched by es* (a different OS)
+	-es1800*)
+		os=-ose
+		;;
+	# Now accept the basic system types.
 	# The portable systems comes first.
-	# Each alternative MUST END IN A *, to match a version number.
+	# Each alternative MUST end in a * to match a version number.
 	# -sysv* is not here because it comes later, after sysvr4.
 	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
 	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
 	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
 	      | -sym* | -kopensolaris* | -plan9* \
 	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
-	      | -aos* | -aros* \
+	      | -aos* | -aros* | -cloudabi* | -sortix* \
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
-	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
+	      | -hiux* | -knetbsd* | -mirbsd* | -netbsd* \
-	      | -bitrig* | -openbsd* | -solidbsd* \
+	      | -bitrig* | -openbsd* | -solidbsd* | -libertybsd* \
 	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
 	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
-	      | -chorusos* | -chorusrdb* | -cegcc* \
+	      | -chorusos* | -chorusrdb* | -cegcc* | -glidix* \
 	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+	      | -midipix* | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
 	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
-	      | -uxpv* | -beos* | -mpeix* | -udk* \
+	      | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
-	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
+	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* \
 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
 	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
 	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
-	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
+	      | -morphos* | -superux* | -rtmk* | -windiss* \
 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
-	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*)
+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
+	      | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox* | -bme* \
+	      | -midnightbsd*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
@@ -1391,12 +1407,12 @@ case $os in
 	-nto*)
 		os=`echo $os | sed -e 's|nto|nto-qnx|'`
 		;;
-	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
+	-sim | -xray | -os68k* | -v88r* \
-	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
+	      | -windows* | -osx | -abug | -netware* | -os9* \
 	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
 		;;
 	-mac*)
-		os=`echo $os | sed -e 's|mac|macos|'`
+		os=`echo "$os" | sed -e 's|mac|macos|'`
 		;;
 	-linux-dietlibc)
 		os=-linux-dietlibc
@@ -1405,10 +1421,10 @@ case $os in
 		os=`echo $os | sed -e 's|linux|linux-gnu|'`
 		;;
 	-sunos5*)
-		os=`echo $os | sed -e 's|sunos5|solaris2|'`
+		os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
 		;;
 	-sunos6*)
-		os=`echo $os | sed -e 's|sunos6|solaris3|'`
+		os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
 		;;
 	-opened*)
 		os=-openedition
@@ -1419,12 +1435,6 @@ case $os in
 	-wince*)
 		os=-wince
 		;;
-	-osfrose*)
-		os=-osfrose
-		;;
-	-osf*)
-		os=-osf
-		;;
 	-utek*)
 		os=-bsd
 		;;
@@ -1449,7 +1459,7 @@ case $os in
 	-nova*)
 		os=-rtmk-nova
 		;;
-	-ns2 )
+	-ns2)
 		os=-nextstep2
 		;;
 	-nsk*)
@@ -1471,7 +1481,7 @@ case $os in
 	-oss*)
 		os=-sysv3
 		;;
-	-svr4)
+	-svr4*)
 		os=-sysv4
 		;;
 	-svr3)
@@ -1486,32 +1496,38 @@ case $os in
 	-ose*)
 		os=-ose
 		;;
-	-es1800*)
-		os=-ose
-		;;
-	-xenix)
-		os=-xenix
-		;;
 	-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
 		os=-mint
 		;;
-	-aros*)
-		os=-aros
-		;;
 	-zvmoe)
 		os=-zvmoe
 		;;
 	-dicos*)
 		os=-dicos
 		;;
+	-pikeos*)
+		# Until real need of OS specific support for
+		# particular features comes up, bare metal
+		# configurations are quite functional.
+		case $basic_machine in
+		    arm*)
+			os=-eabi
+			;;
+		    *)
+			os=-elf
+			;;
+		esac
+		;;
 	-nacl*)
 		;;
+	-ios)
+		;;
 	-none)
 		;;
 	*)
 		# Get rid of the `-' at the beginning of $os.
 		os=`echo $os | sed 's/[^-]*-//'`
-		echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
+		echo Invalid configuration \`"$1"\': system \`"$os"\' not recognized 1>&2
 		exit 1
 		;;
 esac
@@ -1592,9 +1608,6 @@ case $basic_machine in
 	mips*-*)
 		os=-elf
 		;;
-	or1k-*)
-		os=-elf
-		;;
 	or32-*)
 		os=-coff
 		;;
@@ -1604,12 +1617,12 @@ case $basic_machine in
 	sparc-* | *-sun)
 		os=-sunos4.1.1
 		;;
+	pru-*)
+		os=-elf
+		;;
 	*-be)
 		os=-beos
 		;;
-	*-haiku)
-		os=-haiku
-		;;
 	*-ibm)
 		os=-aix
 		;;
@@ -1649,7 +1662,7 @@ case $basic_machine in
 	m88k-omron*)
 		os=-luna
 		;;
-	*-next )
+	*-next)
 		os=-nextstep
 		;;
 	*-sequent)
@@ -1664,9 +1677,6 @@ case $basic_machine in
 	i370-*)
 		os=-mvs
 		;;
-	*-next)
-		os=-nextstep3
-		;;
 	*-gould)
 		os=-sysv
 		;;
@@ -1776,15 +1786,15 @@ case $basic_machine in
 				vendor=stratus
 				;;
 		esac
-		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
+		basic_machine=`echo "$basic_machine" | sed "s/unknown/$vendor/"`
 		;;
 esac
 
-echo $basic_machine$os
+echo "$basic_machine$os"
 exit
 
 # Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
+# eval: (add-hook 'write-file-functions 'time-stamp)
 # time-stamp-start: "timestamp='"
 # time-stamp-format: "%:y-%02m-%02d"
 # time-stamp-end: "'"

configure.ac

@@ -1,11 +1,12 @@
 dnl Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.61)
-AC_INIT
+AC_INIT([tinc], [1.0.36])
 AC_CONFIG_SRCDIR([src/tincd.c])
-AM_INIT_AUTOMAKE(tinc, 1.0.22)
+AM_INIT_AUTOMAKE([1.11 check-news std-options subdir-objects nostdinc silent-rules -Wall])
 AC_CONFIG_HEADERS([config.h])
-AM_MAINTAINER_MODE
+AC_CONFIG_MACRO_DIR([m4])
+AM_SILENT_RULES([yes])
 
 # Enable GNU extensions.
 # Define this here, not in acconfig's @TOP@ section, since definitions
@@ -17,8 +18,8 @@ dnl Checks for programs.
 AC_PROG_CC_C99
 AC_PROG_CPP
 AC_PROG_INSTALL
-AC_PROG_LN_S
+
-AC_PROG_RANLIB
+AM_PROG_CC_C_O
 
 dnl Check and set OS
 
@@ -26,45 +27,45 @@ AC_CANONICAL_HOST
 
 case $host_os in
   *linux*)
+    linux=true
     AC_DEFINE(HAVE_LINUX, 1, [Linux])
-    [ rm -f src/device.c; ln -sf linux/device.c src/device.c ]
   ;;
   *freebsd*)
+    bsd=true
     AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
-    [ rm -f src/device.c; ln -sf bsd/device.c src/device.c ]
   ;;
   *darwin*)
+    bsd=true
     AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
-    [ rm -f src/device.c; ln -sf bsd/device.c src/device.c ]
   ;;
   *solaris*)
+    solaris=true
     AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS])
-    [ rm -f src/device.c; ln -sf solaris/device.c src/device.c ]
   ;;
   *openbsd*)
+    bsd=true
     AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD])
-    [ rm -f src/device.c; ln -sf bsd/device.c src/device.c ]
   ;;
   *netbsd*)
+    bsd=true
     AC_DEFINE(HAVE_NETBSD, 1, [NetBSD])
-    [ rm -f src/device.c; ln -sf bsd/device.c src/device.c ]
   ;;
   *dragonfly*)
+    bsd=true
     AC_DEFINE(HAVE_DRAGONFLY, 1, [DragonFly])
-    [ rm -f src/device.c; ln -sf bsd/device.c src/device.c ]
   ;;
   *bsd*)
+    bsd=true
     AC_MSG_WARN("Unknown BSD variant, tinc might not compile or work!")
     AC_DEFINE(HAVE_BSD, 1, [Unknown BSD variant])
-    [ rm -f src/device.c; ln -sf bsd/device.c src/device.c ]
   ;;
   *cygwin*)
+    cygwin=true
     AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin])
-    [ rm -f src/device.c; ln -sf cygwin/device.c src/device.c ]
   ;;
   *mingw*)
+    mingw=true
     AC_DEFINE(HAVE_MINGW, 1, [MinGW])
-    [ rm -f src/device.c; cp -f src/mingw/device.c src/device.c ]
     LIBS="$LIBS -lws2_32 -lgdi32 -lcrypt32"
   ;;
   *)
@@ -107,15 +108,32 @@ AC_ARG_ENABLE(tunemu,
 )
 
 AC_ARG_WITH(windows2000,
-  AS_HELP_STRING([--without-windows2000], [compile with support for Windows 2000. This disables support for tunneling over existing IPv6 networks.]),
+  AS_HELP_STRING([--with-windows2000], [compile with support for Windows 2000. This disables support for tunneling over existing IPv6 networks.]),
   [ AS_IF([test "x$with_windows2000" = "xyes"],
       [AC_DEFINE(WITH_WINDOWS2000, 1, [Compile with support for Windows 2000])])
   ]
 )
 
+AC_ARG_WITH(systemd,
+  AS_HELP_STRING([--with-systemd@<:@=DIR@:>@], [install systemd service files @<:@to DIR if specified@:>@]),
+  [ systemd=true; systemd_path="$with_systemd" ],
+  [ systemd=false ]
+)
+
+AS_IF([test "x$with_systemd" = "xyes"], [systemd_path="\${libdir}/systemd/system"],
+      [AS_IF([test "x$with_systemd" = "xno"], [systemd=false])])
+
+AC_SUBST(systemd_path, $systemd_path)
+
+AM_CONDITIONAL(LINUX, test "$linux" = true)
+AM_CONDITIONAL(BSD, test "$bsd" = true)
+AM_CONDITIONAL(SOLARIS, test "$solaris" = true)
+AM_CONDITIONAL(MINGW, test "$mingw" = true)
+AM_CONDITIONAL(CYGWIN, test "$cygwin" = true)
 AM_CONDITIONAL(UML, test "$uml" = true)
 AM_CONDITIONAL(VDE, test "$vde" = true)
 AM_CONDITIONAL(TUNEMU, test "$tunemu" = true)
+AM_CONDITIONAL(WITH_SYSTEMD, test "$systemd" = true)
 
 AC_CACHE_SAVE
 
@@ -126,46 +144,64 @@ if test -d /sw/lib ; then
   LIBS="$LIBS -L/sw/lib"
 fi
 
+dnl Compiler hardening flags
+dnl No -fstack-protector-all because it doesn't work on all platforms or architectures.
+
+AX_CFLAGS_WARN_ALL(CFLAGS)
+
+AC_ARG_ENABLE([hardening], AS_HELP_STRING([--disable-hardening], [disable compiler and linker hardening flags]))
+AS_IF([test "x$enable_hardening" != "xno"],
+  [AX_CHECK_COMPILE_FLAG([-DFORTIFY_SOURCE=2], [CPPFLAGS="$CPPFLAGS -DFORTIFY_SOURCE=2"])
+   AX_CHECK_COMPILE_FLAG([-fwrapv], [CPPFLAGS="$CPPFLAGS -fwrapv"],
+   AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CPPFLAGS="$CPPFLAGS -fno-strict-overflow"]))
+   case $host_os in
+     *mingw*)
+       AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"])
+       AX_CHECK_LINK_FLAG([-Wl,--nxcompat], [LDFLAGS="$LDFLAGS -Wl,--nxcompat"])
+       ;;
+     *)
+       AX_CHECK_COMPILE_FLAG([-fPIE], [CPPFLAGS="$CPPFLAGS -fPIE"])
+       AX_CHECK_LINK_FLAG([-pie], [LDFLAGS="$LDFLAGS -pie"])
+       ;;
+   esac
+   AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
+   AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"])
+  ]
+);
+
 dnl Checks for libraries.
 
 dnl Checks for header files.
 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
 
-AC_HEADER_STDC
+AC_CHECK_HEADERS([syslog.h sys/file.h sys/ioctl.h sys/mman.h sys/param.h sys/resource.h sys/socket.h sys/time.h sys/uio.h sys/wait.h netdb.h arpa/inet.h arpa/nameser.h dirent.h getopt.h])
-AC_CHECK_HEADERS([stdbool.h syslog.h sys/file.h sys/ioctl.h sys/mman.h sys/param.h sys/resource.h sys/socket.h sys/time.h time.h sys/uio.h sys/wait.h netdb.h arpa/inet.h dirent.h])
+AC_CHECK_HEADERS([net/if.h net/if_types.h linux/if_tun.h net/if_tun.h net/if_utun.h net/tun/if_tun.h net/if_tap.h net/tap/if_tap.h net/ethernet.h net/if_arp.h netinet/in_systm.h netinet/in.h netinet/in6.h netpacket/packet.h],
-AC_CHECK_HEADERS([net/if.h net/if_types.h linux/if_tun.h net/if_tun.h net/tun/if_tun.h net/if_tap.h net/tap/if_tap.h net/ethernet.h net/if_arp.h netinet/in_systm.h netinet/in.h netinet/in6.h netpacket/packet.h],
+  [], [], [#include "$srcdir/src/have.h"]
-  [], [], [#include "have.h"]
 )
-AC_CHECK_HEADERS([netinet/if_ether.h netinet/ip.h netinet/ip6.h],
+AC_CHECK_HEADERS([netinet/if_ether.h netinet/ip.h netinet/ip6.h resolv.h],
-  [], [], [#include "have.h"]
+  [], [], [#include "$srcdir/src/have.h"]
 )
 AC_CHECK_HEADERS([netinet/tcp.h netinet/ip_icmp.h netinet/icmp6.h],
-  [], [], [#include "have.h"]
+  [], [], [#include "$srcdir/src/have.h"]
 )
 
 dnl Checks for typedefs, structures, and compiler characteristics.
-AC_C_CONST
-AC_C_VOLATILE
 AC_TYPE_PID_T
-AC_TYPE_SIZE_T
-AC_HEADER_TIME
-AC_STRUCT_TM
 
 tinc_ATTRIBUTE(__malloc__)
 
 AC_CHECK_TYPES([socklen_t, struct ether_header, struct arphdr, struct ether_arp, struct in_addr, struct addrinfo, struct ip, struct icmp, struct in6_addr, struct sockaddr_in6, struct ip6_hdr, struct icmp6_hdr, struct nd_neighbor_solicit, struct nd_opt_hdr], , ,
-  [#include "have.h"]
+  [#include "$srcdir/src/have.h"]
 )
 
 dnl Checks for library functions.
-AC_FUNC_MEMCMP
-AC_FUNC_ALLOCA
 AC_TYPE_SIGNAL
-AC_CHECK_FUNCS([asprintf daemon fchmod flock ftime fork get_current_dir_name gettimeofday mlockall pselect putenv random select strdup strerror strsignal strtol system unsetenv usleep vsyslog writev],
+AC_CHECK_FUNCS([asprintf daemon fchmod flock fork gettimeofday mlockall pselect putenv strsignal system unsetenv usleep vsyslog devname fdevname],
-  [], [], [#include "have.h"]
+  [], [], [#include "$srcdir/src/have.h"]
 )
-AC_FUNC_MALLOC
+
-AC_FUNC_REALLOC
+AC_CHECK_FUNC(getopt_long, [getopt=true; AC_DEFINE(HAVE_GETOPT_LONG, 1, [getopt_long()])], [getopt=false])
+AM_CONDITIONAL(GETOPT, test "$getopt" = true)
 
 dnl Support for SunOS
 
@@ -177,9 +213,14 @@ AC_CHECK_FUNC(gethostbyname, [], [
 ])
 
 AC_CHECK_DECLS([freeaddrinfo, gai_strerror, getaddrinfo, getnameinfo],
-  [], [], [#include "have.h"]
+  [], [], [#include "$srcdir/src/have.h"]
 )
 
+AC_CHECK_DECLS([res_init], [AC_CHECK_LIB(resolv, res_init)], [], [
+  #include <netinet/in.h>
+  #include <resolv.h>
+])
+
 AC_CACHE_SAVE
 
 dnl These are defined in files in m4/
@@ -188,16 +229,19 @@ tinc_ZLIB
 tinc_LZO
 tinc_OPENSSL
 
-dnl Check if support for jumbograms is requested 
+dnl Check if support for jumbograms is requested
 AC_ARG_ENABLE(jumbograms,
-  AS_HELP_STRING([--disable-jumbograms], [enable support for jumbograms (packets up to 9000 bytes)]),
+  AS_HELP_STRING([--enable-jumbograms], [enable support for jumbograms (packets up to 9000 bytes)]),
   [ AS_IF([test "x$enable_jumbograms" = "xyes"],
       [ AC_DEFINE(ENABLE_JUMBOGRAMS, 1, [Support for jumbograms (packets up to 9000 bytes)]) ])
   ]
 )
 
-AC_SUBST(INCLUDES)
+dnl Ensure runstatedir is set if we are using a version of autoconf that does not support it
+if test "x$runstatedir" = "x"; then
+  AC_SUBST([runstatedir], ['${localstatedir}/run'])
+fi
 
-AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile lib/Makefile m4/Makefile])
+AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile systemd/Makefile])
 
 AC_OUTPUT

debian/NEWS

@@ -0,0 +1,14 @@
+tinc (1.0.27-1) unstable; urgency=medium
+
+  This package now provides native systemd service files, allowing multiple
+  instances of tinc to be managed. Existing networks listed in
+  /etc/tinc/nets.boot will be converted to service instances once during this
+  upgrade. Afterwards, you can enable and disable networks using:
+  
+    systemctl enable tinc@<netname>
+    systemctl disable tinc@<netname>
+  
+  If you do not have systemd installed, the SysV init script will continue to
+  work as usual. For more information, see README.Debian.
+
+ -- Guus Sliepen <guus@debian.org>  Sun, 10 Apr 2016 01:33:55 +0200

debian/README.Debian

@@ -1,17 +1,54 @@
 tinc for Debian
-----------------------
+---------------
 
 The manual for tinc is also available as info pages, type `info tinc'
 to read it.
 
-The system startup script for tinc, /etc/init.d/tinc, uses the file
+There are several ways in which tinc may be automatically started at boot:
-/etc/tinc/nets.boot to find out which networks have to be started.
 
-Alternatively, you can create a stanza in /etc/network/interfaces, and add a
+Systemd
-line with "tinc-net <netname>". This will cause a tincd to be started which
+-------
-uses the configuration from /etc/tinc/<netname>. You can use an inet static
+
-(with address and netmask options) or inet dhcp stanza, in which case the ifup
+Since 1.0.27-1, the tinc package comes with native systemd service files.
-will configure the VPN interface and you do not need to have a tinc-up script.
+To enable and start a net, call:
+
+systemctl enable tinc@<netname>
+systemctl start tinc@<netname>
+
+This will cause a tincd to be started which uses the configuration from
+/etc/tinc/<netname>, and also makes sure that it will be started next time your
+system boots.
+
+Apart from controlling individual instances, you can also start/stop/reload all
+enabled instances simultaneously by omitting @<netname>, for example:
+
+systemctl reload tinc
+
+Note that when you have systemd installed on your system, the file
+/etc/tinc/nets.boot will not be used anymore to automatically start tinc
+daemons. If the variable EXTRA is defined in /etc/default/tinc, it will be
+passed on to tinc. The variable LIMITS is however not used.
+
+The service files that come with this package start tinc unconditionally.
+However, tinc does support socket activation. If you wish to write a socket
+unit for tinc, use the ListenStream option to specify on which port(s) and
+address(es) tinc should listen.
+
+SysVinit
+--------
+
+The system startup script for tinc, /etc/init.d/tinc, uses the file
+/etc/tinc/nets.boot to find out which networks have to be started. Use one
+netname per line. Lines starting with a # are ignored.
+
+/etc/network/interfaces
+-----------------------
+
+You can create a stanza in /etc/network/interfaces, and add a line with
+"tinc-net <netname>". This will cause a tincd to be started which uses the
+configuration from /etc/tinc/<netname>. You can use an inet static (with
+address and netmask options) or inet dhcp stanza, in which case the ifup will
+configure the VPN interface and you do not need to have a tinc-up script.
 
 The following options are also recognized and map directly to the corresponding
 command line options for tincd:
@@ -37,7 +74,7 @@ iface vpn inet static
 
 This will start a tinc daemon that reads its configuration from
 /etc/tinc/myvpn, logs at debug level 1, locks itself in RAM, runs as user
-nobody, writes the PID to /tmp/tinc.pid, and creates a network interface called
+nobody, and creates a network interface called "vpn". Ifup then sets the
-"vpn". Ifup then sets the address and netmask on that interface.
+address and netmask on that interface.
 
- -- Guus Sliepen <guus@debian.org>, Fri, 25 June 2012, 20:28:35 +0200
+ -- Guus Sliepen <guus@debian.org>, Sun, 10 April 2016, 01:38:08 +0200

debian/changelog

@@ -1,3 +1,162 @@
+tinc (1.0.36-2) unstable; urgency=medium
+
+  * Disable support for libvdeplug. Closes: #973233
+
+ -- Guus Sliepen <guus@debian.org>  Sun, 22 Nov 2020 10:40:27 +0100
+
+tinc (1.0.36-1) unstable; urgency=medium
+
+  * New upstream version 1.0.36
+  * Add Vcs tags to debian/control.
+  * Bump Standards-Version.
+
+ -- Guus Sliepen <guus@debian.org>  Mon, 26 Aug 2019 14:17:21 +0200
+
+tinc (1.0.35-2) unstable; urgency=medium
+
+  * Bump Standards-Version and Build-Depend on debhelper-compat (= 12).
+  * Remove calls to dh_installinit and dh_systemd_start from debian/rules,
+    compat level 12 does the right thing by default.
+  * Ensure we clean up doc/tinc.info.
+
+ -- Guus Sliepen <guus@debian.org>  Mon, 28 Jan 2019 21:54:45 +0100
+
+tinc (1.0.35-1) unstable; urgency=medium
+
+  * New upstream release.
+    - Includes fixes for CVE-2018-16737, CVE-2018-16738, CVE-2018-16758.
+
+ -- Guus Sliepen <guus@debian.org>  Mon, 08 Oct 2018 16:09:06 +0200
+
+tinc (1.0.34-1) unstable; urgency=medium
+
+  [ Guus Sliepen ]
+  * New upstream release.
+    - Fixes a potential segmentation fault when connecting to an IPv6
+      peer via a proxy. Closes: #887401
+  * Add support for the $EXTRA variable in /etc/default/tinc when using
+    systemd. Closes: #887116
+
+  [ Benda Xu ]
+  * Prevent possible incorrect IPv6 checksums due to function inlining.
+    Closes: #891400
+
+ -- Guus Sliepen <guus@debian.org>  Tue, 12 Jun 2018 23:00:49 +0200
+
+tinc (1.0.33-1) unstable; urgency=medium
+
+  * New upstream release.
+  * Test for /etc/default/tinc before trying to source it. Closes: #777262
+  * Use --runstatedir=/run.
+
+ -- Guus Sliepen <guus@debian.org>  Sat, 04 Nov 2017 16:22:06 +0100
+
+tinc (1.0.32-1) unstable; urgency=medium
+
+  * New upstream release.
+  * Add a note to new nets.boot files that it is not used with systemd.
+    Closes: #841052
+  * In the post-down script, read the pid file only once. Closes: #832784
+  * Explicitly use /bin/sleep from coreutils. Closes: #772379
+  * Bump Standards-Version.
+
+ -- Guus Sliepen <guus@debian.org>  Tue, 05 Sep 2017 20:23:36 +0200
+
+tinc (1.0.31-1) unstable; urgency=medium
+
+  * New upstream release.
+  * Bump Standards-Version.
+  * Bump debian/compat.
+  * Add missing Depends: lsb-base.
+
+ -- Guus Sliepen <guus@debian.org>  Sun, 15 Jan 2017 16:20:40 +0100
+
+tinc (1.0.29-2) unstable; urgency=medium
+
+  * Rebuild with libssl-dev from unstable.
+
+ -- Guus Sliepen <guus@debian.org>  Thu, 27 Oct 2016 13:09:46 +0200
+
+tinc (1.0.29-1) unstable; urgency=medium
+
+  * New upstream release.
+  * Bump debian/compat.
+
+ -- Guus Sliepen <guus@debian.org>  Mon, 10 Oct 2016 22:30:25 +0200
+
+tinc (1.0.28-1) unstable; urgency=medium
+
+  * New upstream release.
+    - Fixes FTBFS on kfreebsd.
+  * Systemd service files are now provided by upstream.
+
+ -- Guus Sliepen <guus@debian.org>  Sun, 10 Apr 2016 15:44:28 +0200
+
+tinc (1.0.27-2) unstable; urgency=medium
+
+  * Fix tinc@.service.
+
+ -- Guus Sliepen <guus@debian.org>  Sun, 10 Apr 2016 12:45:33 +0200
+
+tinc (1.0.27-1) unstable; urgency=medium
+
+  * New upstream release.
+  * Bump Standards-Version.
+  * Add native systemd unit files.
+  * Automatically convert networks listed in nets.boot to systemd service
+    instances on upgrade.
+
+ -- Guus Sliepen <guus@debian.org>  Sun, 10 Apr 2016 01:39:16 +0200
+
+tinc (1.0.26-1) unstable; urgency=medium
+
+  * New upstream release.
+  * Use the contents, not the presence, of the pidfile to check that tincd is
+    shut down properly. Closes: #774682
+  * Bump Standards-Version.
+
+ -- Guus Sliepen <guus@debian.org>  Sun, 05 Jul 2015 17:23:08 +0200
+
+tinc (1.0.24-2) unstable; urgency=medium
+
+  * Improve the init script: stopping tinc now waits for the process to
+    terminate. If that doesn't happen in 5 seconds, it will send the TERM
+    signal again (which helps if tinc is waiting for a script to finish
+    executing). It now also detects whether the process mentioned in the PID
+    file is actually running, and if not it will exit early and without
+    warnings. Closes: #748107
+
+ -- Guus Sliepen <guus@debian.org>  Wed, 14 May 2014 21:44:16 +0200
+
+tinc (1.0.24-1) unstable; urgency=medium
+
+  [ Guus Sliepen ]
+  * New upstream release
+  * Add a debian/watch file.
+  * Bump Standards-Version.
+
+  [ Gian Piero Carrubba ]
+  * Allow resource limits to be set in /etc/default/tinc.
+    Closes: #690685, #704702
+
+ -- Guus Sliepen <guus@debian.org>  Sun, 11 May 2014 21:17:13 +0200
+
+tinc (1.0.23-2) unstable; urgency=low
+
+  * Use if-statements instead of && in shell scripts. Closes: #731279
+    The && operator does not clear the error status, and if the next statement
+    in a shell script does not change the error status it would cause the
+    script to prematurely exit. Thanks to Peter Reinholdtsen for spotting it.
+  * Use absolute path to tincd in the if-post-down script.
+
+ -- Guus Sliepen <guus@debian.org>  Thu, 05 Dec 2013 09:41:13 +0000
+
+tinc (1.0.23-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Guus Sliepen <guus@debian.org>  Sat, 19 Oct 2013 21:06:05 +0200
+
 tinc (1.0.22-1) unstable; urgency=low
 
   * New upstream release.

debian/compat

@@ -1 +0,0 @@
-9

debian/control

@@ -2,13 +2,17 @@ Source: tinc
 Section: net
 Priority: optional
 Maintainer: Guus Sliepen <guus@debian.org>
-Standards-Version: 3.9.4
+Standards-Version: 4.4.0
-Build-Depends: libssl-dev, debhelper (>= 9), gettext, texinfo, zlib1g-dev, liblzo2-dev, libvdeplug-dev
+Build-Depends: libssl-dev, debhelper-compat (= 12), gettext, texinfo, zlib1g-dev, liblzo2-dev
 Homepage: http://www.tinc-vpn.org/
+Vcs-Browser: https://salsa.debian.org/guus/tinc
+Vcs-Git: https://salsa.debian.org/guus/tinc.git
+Rules-Requires-Root: no
 
 Package: tinc
 Architecture: any
-Depends: ${shlibs:Depends}, ${misc:Depends}
+Pre-Depends: ${misc:Pre-Depends}
+Depends: ${shlibs:Depends}, ${misc:Depends}, lsb-base (>= 3.0-6)
 Description: Virtual Private Network daemon
  tinc is a daemon with which you can create a virtual private network
  (VPN). One daemon can handle multiple connections, so you can

debian/patches/fix-incorrect-icmpv6-checksum

@@ -0,0 +1,65 @@
+Package: tinc
+Version: 1.0.33-1
+Severity: important
+
+Dear Guus,
+
+I have been using tinc since 2009 and it is great!
+
+When PMTUDiscovery=yes and Mode=switch, and if ipv6 is used inside
+tinc, the ICMPv6 "Packet Too Big" packets have incorrect checksums.
+It can be reproduced by `ping6 <host in tinc> -s 1800` and `tcpdump -i
+<tinc interface>`.  Consequently, the host ignores the tinc-generated
+ICMPv6 packets, PMTUDiscovery does not work and the connections freeze
+when data flows are big.
+
+I find the bug is gone if the function "inet_checksum" in route.c is
+not inlined, either by compiling tinc with "-O2
+-fno-inline-functions", or apply a patch such as,
+
+diff --git a/src/route.c b/src/route.c
+index ff82c06e..cd55383a 100644
+--- a/src/route.c
++++ b/src/route.c
+@@ -60,7 +60,7 @@ static const size_t opt_size = sizeof(struct nd_opt_hdr);
+
+ /* RFC 1071 */
+
+-static uint16_t inet_checksum(void *data, int len, uint16_t prevsum) {
++__attribute__ ((noinline)) static uint16_t inet_checksum(void *data, int len, uint16_t prevsum) {
+ 	uint16_t *p = data;
+ 	uint32_t checksum = prevsum ^ 0xFFFF;
+
+
+
+I have tested with gcc-7.3.0 and gcc-5.4.0.  They behaved the same.  I
+am not good at assembly to find out what really happened, but it is
+for sure that inet_checksum does not work as expected if compiled
+inline.
+
+Thanks!
+
+Yours,
+Benda
+
+-- System Information:
+Debian Release: buster/sid
+  APT prefers unstable
+  APT policy: (500, 'unstable')
+Architecture: amd64 (x86_64)
+
+Kernel: Linux 4.9.0-5-amd64 (SMP w/8 CPU cores)
+Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)
+Shell: /bin/sh linked to /bin/dash
+Init: sysvinit (via /sbin/init)
+
+Versions of packages tinc depends on:
+ii  libc6      2.26-2
+ii  liblzo2-2  2.08-1.2+b2
+ii  libssl1.1  1.1.0g-2
+ii  lsb-base   9.20170808
+ii  zlib1g     1:1.2.8.dfsg-5
+
+tinc recommends no packages.
+
+tinc suggests no packages.

debian/patches/series

@@ -0,0 +1,2 @@
+fix-incorrect-icmpv6-checksum
+support-etc-defaults-tinc

debian/patches/support-etc-defaults-tinc

@@ -0,0 +1,12 @@
+--- a/systemd/tinc@.service.in
++++ b/systemd/tinc@.service.in
+@@ -9,7 +9,8 @@
+ [Service]
+ Type=simple
+ WorkingDirectory=@sysconfdir@/tinc/%i
+-ExecStart=@sbindir@/tincd -n %i -D
++EnvironmentFile=/etc/default/tinc
++ExecStart=@sbindir@/tincd -n %i -D $EXTRA
+ ExecReload=@sbindir@/tincd -n %i -kHUP
+ KillMode=mixed
+ Restart=on-failure

debian/postinst

@@ -7,14 +7,15 @@ set -e
 case "$1" in
     configure)
 	if [ ! -e /dev/.devfsd ] ; then if [ ! -e /dev/.devfs ] ; then
-		if [ ! -e /dev/net/tun ] ; then if [ ! -e /dev/tun ] ; then
+		if [ ! -e /dev/net/tun ] ; then if [ ! -e /dev/tun ] ; then if [ -e /dev/MAKEDEV ]; then
 			echo "Creating tun device..."
 			cd /dev && ./MAKEDEV net/tun 2>/dev/null || ./MAKEDEV tun 2>/dev/null || echo "Failed to create tun device."
-		fi; fi
+		fi; fi; fi
 	fi; fi
 
 	if [ ! -e $NETSFILE ] ; then
-	    echo "## This file contains all names of the networks to be started on system startup." > $NETSFILE
+	    echo "## This file contains all names of the networks to be started on system startup when using sysvinit." > $NETSFILE
+	    echo "## If you are using systemd, use systemctl enable tinc@netname to enable individual networks." >> $NETSFILE
 	fi
     ;;
 

debian/preinst

@@ -0,0 +1,28 @@
+#!/bin/sh
+
+NETSFILE="/etc/tinc/nets.boot"
+SYSTEM="/lib/systemd/system"
+WANTS="/etc/systemd/system/multi-user.target.wants"
+
+set -e
+
+case "$1" in
+	upgrade)
+		if dpkg --compare-versions "$2" '<<' "1.0.27-1"; then
+			if [ -f "$NETSFILE" ]; then
+				echo -n "Creating systemd service instances from nets.boot:"
+				mkdir -p "$WANTS"
+				egrep '^[ ]*[a-zA-Z0-9_-]+' $NETSFILE | while read net args; do
+					echo -n " $net"
+					ln -s "$SYSTEM/tinc@.service" "$WANTS/tinc@$net.service" 2>/dev/null || true
+				done
+				echo "."
+			fi
+		fi
+	;;
+
+	*)
+	;;
+esac
+
+#DEBHELPER#

debian/rules

@@ -1,28 +1,16 @@
 #!/usr/bin/make -f
-# -*- makefile -*-
-# Sample debian/rules that uses debhelper.
-# This file was originally written by Joey Hess and Craig Small.
-# As a special exception, when this file is copied by dh-make into a
-# dh-make output file, you may use that output file without restriction.
-# This special exception was added by Craig Small in version 0.37 of dh-make.
-
-# Uncomment this to turn on verbose mode.
-#export DH_VERBOSE=1
 
 %:
-	dh $@ --parallel
+	dh $@
+
+override_dh_clean:
+	dh_clean
+	rm -f doc/tinc.info
 
 override_dh_auto_configure:
-	dh_auto_configure -- --enable-uml --enable-vde
+	dh_auto_configure -- --enable-uml --with-systemd=/lib/systemd/system --runstatedir=/run
 
 override_dh_auto_install:
 	dh_auto_install -- install-html
 	# Remove info dir file
 	rm -f debian/tinc/usr/share/info/dir
-
-override_dh_installinit:
-	dh_installinit -R
-
-override_dh_clean:
-	dh_clean
-	rm -f src/device.c

debian/tinc.default

@@ -1,2 +1,7 @@
 # Extra options to be passed to tincd.
 # EXTRA="-d"
+
+# Limits to be configured for the tincd process. Please read your shell
+# (pointed by /bin/sh) documentation for ulimit. You probably want to raise the
+# max locked memory value if using both --mlock and --user flags.
+# LIMITS="-l 1024"

debian/tinc.if-post-down

@@ -2,20 +2,40 @@
 
 set -e
 
-if [ "$IF_TINC_NET" ] ; then
+if [ "$METHOD" = loopback -o -z "$IF_TINC_NET" ]; then
-	EXTRA=""
+	exit 0
-	[ -n "$IF_TINC_PIDFILE" ] && EXTRA="--pidfile=$IF_TINC_PIDFILE" || IF_TINC_PIDFILE=/var/run/tinc.$IF_TINC_NET.pid
-	tincd -n "$IF_TINC_NET" -k $EXTRA
-	sleep 0.1
-	i=0;
-	while [ -f "$IF_TINC_PIDFILE" ] ; do
-		if [ $i = '30' ] ; then
-			echo 'Failed to stop tinc daemon!'
-			exit 1
-		fi
-		sleep 0.1
-		i=$(($i+1))
-	done
 fi
 
+# Determine location of the PID file
+
+EXTRA=""
+if [ -n "$IF_TINC_PIDFILE" ]; then
+	EXTRA="--pidfile=$IF_TINC_PIDFILE"
+else
+	IF_TINC_PIDFILE=/var/run/tinc.$IF_TINC_NET.pid
+fi
+
+# Stop the tinc daemon
+
+read pid rest < $IF_TINC_PIDFILE 2>/dev/null
+
+/usr/sbin/tincd -n "$IF_TINC_NET" -k $EXTRA
+
+# Wait for it to shut down properly
+
+/bin/sleep 0.1
+i=0;
+while [ -f $IF_TINC_PIDFILE ] ; do
+	if [ ! -e "/proc/$pid" ] ; then
+		exit 0
+	fi
+
+	if [ $i = '30' ] ; then
+		echo 'Failed to stop tinc daemon!'
+		exit 1
+	fi
+	/bin/sleep 0.1
+	i=$(($i+1))
+done
+
 exit 0

debian/tinc.if-pre-up

@@ -2,11 +2,29 @@
 
 set -e
 
-[ -z "$IF_TINC_NET" ] && exit 0
+if [ "$METHOD" = loopback -o -z "$IF_TINC_NET" ]; then
+	exit 0
+fi
 
 # Read options from /etc/default
 
-. /etc/default/tinc
+[ -r /etc/default/tinc ] && . /etc/default/tinc
+
+# Set process limits
+
+setlimits() {
+  while [ $# -gt 0 ]; do
+    parm=$1 ; shift
+    if [ -n "$1" -a "${1#-}" = "$1" ]; then
+      value=$1 ; shift
+      ulimit $parm $value
+    else
+      ulimit $parm
+    fi
+  done
+}
+
+test -n "$LIMITS" && setlimits $LIMITS
 
 # Read options from /etc/network/interfaces
 
@@ -25,14 +43,27 @@ set -e
 
 # Wait for it to come up properly
 
-sleep 0.1
+/bin/sleep 0.1
 i=0;
-while [ ! -f "$IF_TINC_PIDFILE" ] ; do
+while [ ! -f $IF_TINC_PIDFILE ] ; do
 	if [ $i = '30' ] ; then
 		echo 'Failed to start tinc daemon!'
 		exit 1
 	fi
-	sleep 0.1
+	/bin/sleep 0.1
+	i=$(($i+1))
+done
+
+while read pid rest < $IF_TINC_PIDFILE ; do
+	if [ -e "/proc/$pid" ] ; then
+		exit 0
+	fi
+
+	if [ $i = '30' ] ; then
+		echo 'Failed to start tinc daemon!'
+		exit 1
+	fi
+	/bin/sleep 0.1
 	i=$(($i+1))
 done
 

debian/tinc.if-up

@@ -2,7 +2,8 @@
 
 set -e
 
-[ "$METHOD" = loopback ] && exit 0
+if [ "$METHOD" = loopback -o -n "$IF_TINC_NET" ]; then
-[ -n "$IF_TINC_NET" ] && exit 0
+	exit 0
+fi
 
 invoke-rc.d tinc alarm || exit 0

debian/tinc.init

@@ -56,31 +56,62 @@ signal_running() {
   done
 }
 
+setlimits() {
+  while [ $# -gt 0 ]; do
+    parm=$1 ; shift
+    if [ -n "$1" -a "${1#-}" = "$1" ]; then
+      value=$1 ; shift
+      ulimit $parm $value
+    else
+      ulimit $parm
+    fi
+  done
+}
+
+test -n "$LIMITS" && setlimits $LIMITS
+
 start() {
   $DAEMON $EXTRA -n "$@"
 }
+
 stop() {
-  $DAEMON -n $1 -k
+  [ -f /var/run/tinc.$1.pid ] || return
+  read pid rest </var/run/tinc.$1.pid || return
+  kill -0 "$pid" 2>/dev/null || return
+
+  $DAEMON -n $1 -k || return
+
+  i=0;
+  /bin/sleep 0.5
+
+  # Wait for the pidfile to disappear
+  while [ -f /var/run/tinc.$1.pid ]; do
+    # And check that there is an actual process running
+    kill -0 "$pid" 2>/dev/null || return
+
+    if [ $i = '10' ] ; then
+      # It's still alive, kill it again and give up
+        $DAEMON -n $1 -k && /bin/sleep 0.5
+      break
+    else
+      echo -n "."
+      i=$(($i+1))
+    fi
+
+    /bin/sleep 0.5
+  done
 }
+
 reload() {
   $DAEMON -n $1 -kHUP
 }
+
 alarm() {
   $DAEMON -n $1 -kALRM
 }
+
 restart() {
   stop "$@"
-  sleep 0.5
-  i=0;
-  while [ -f /var/run/tinc.$1.pid ] ; do
-	if [ $i = '10' ] ; then
-		break
-	else
-		echo -n "."
-		sleep 0.5
-		i=$(($i+1))
-	fi		
-  done
   start "$@"
 }
 

debian/upstream/signing-key.asc

@@ -0,0 +1,70 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v1
+
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+Sk2sKlhrOoBXEX/79Kz+Aj5PjeyiQxgQ7Ba/afwhU6aTqs2Dp1T0YNu2eBvV+1QH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+=5MAs
+-----END PGP PUBLIC KEY BLOCK-----

debian/watch

@@ -0,0 +1,2 @@
+version=3
+opts=pgpsigurlmangle=s/$/.sig/ http://www.tinc-vpn.org/packages/tinc-(1\.0\.\d+)\.tar\.gz

depcomp

@@ -1,9 +1,9 @@
 #! /bin/sh
 # depcomp - compile a program generating dependencies as side-effects
 
-scriptversion=2013-05-30.07; # UTC
+scriptversion=2018-03-07.03; # UTC
 
-# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -16,7 +16,7 @@ scriptversion=2013-05-30.07; # UTC
 # GNU General Public License for more details.
 
 # You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -783,9 +783,9 @@ exit 0
 # Local Variables:
 # mode: shell-script
 # sh-indentation: 2
-# eval: (add-hook 'write-file-hooks 'time-stamp)
+# eval: (add-hook 'before-save-hook 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:

doc/Makefile.am

@@ -1,46 +1,35 @@
 ## Process this file with automake to get Makefile.in
 
 info_TEXINFOS = tinc.texi
+tinc_TEXINFOS = tincinclude.texi
 
 man_MANS = tincd.8 tinc.conf.5
 
-EXTRA_DIST = tincinclude.texi.in tincd.8.in tinc.conf.5.in sample-config.tar.gz
+EXTRA_DIST = tincinclude.texi.in tincd.8.in tinc.conf.5.in sample-config
 
-CLEANFILES = *.html tinc.info tincd.8 tinc.conf.5 tincinclude.texi
+CLEANFILES = *.html tincd.8 tinc.conf.5 tincinclude.texi
-
-# Use `ginstall' in the definition of man_MANS to avoid
-# confusion with the `install' target.  The install rule transforms `ginstall'
-# to install before applying any user-specified name transformations.
-transform = s/ginstall/install/; @program_transform_name@
-
-# For additional rules usually of interest only to the maintainer,
-# see GNUmakefile and Makefile.maint.
-
-sample-config.tar.gz: sample-config
-	GZIP=$(GZIP_ENV) $(AMTAR) chozf sample-config.tar.gz --exclude .svn sample-config
 
 texi2html: tinc.texi
-	texi2html -split=chapter tinc.texi
+	$(AM_V_GEN)texi2html -split=chapter $<
 
 tincd.8.html: tincd.8
-	w3mman2html $< > $@
+	$(AM_V_GEN)w3mman2html $< > $@
 
 tinc.conf.5.html: tinc.conf.5
-	w3mman2html $< > $@
+	$(AM_V_GEN)w3mman2html $< > $@
 
 substitute = sed \
 	-e s,'@PACKAGE\@',"$(PACKAGE)",g \
 	-e s,'@VERSION\@',"$(VERSION)",g \
 	-e s,'@sysconfdir\@',"$(sysconfdir)",g \
+	-e s,'@runstatedir\@',"$(runstatedir)",g \
 	-e s,'@localstatedir\@',"$(localstatedir)",g
 
-tincd.8: tincd.8.in
+tincd.8: $(srcdir)/tincd.8.in
-	$(substitute) tincd.8.in > tincd.8
+	$(AM_V_GEN)$(substitute) $(srcdir)/tincd.8.in > $@
 
-tinc.conf.5: tinc.conf.5.in
+tinc.conf.5: $(srcdir)/tinc.conf.5.in
-	$(substitute) tinc.conf.5.in > tinc.conf.5
+	$(AM_V_GEN)$(substitute) $(srcdir)/tinc.conf.5.in > $@
 
-tincinclude.texi: tincinclude.texi.in
+tincinclude.texi: $(srcdir)/tincinclude.texi.in
-	$(substitute) tincinclude.texi.in > tincinclude.texi
+	$(AM_V_GEN)$(substitute) $(srcdir)/tincinclude.texi.in > $@
-	
-tinc.texi: tincinclude.texi

doc/Makefile.in

@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.13.3 from Makefile.am.
+# Makefile.in generated by automake 1.16.2 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -14,7 +14,17 @@
 
 @SET_MAKE@
 VPATH = @srcdir@
-am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
 am__make_running_with_option = \
   case $${target_option-} in \
       ?) ;; \
@@ -68,6 +78,7 @@ install_sh_DATA = $(install_sh) -c -m 644
 install_sh_PROGRAM = $(install_sh) -c
 install_sh_SCRIPT = $(install_sh) -c
 INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
 NORMAL_INSTALL = :
 PRE_INSTALL = :
 POST_INSTALL = :
@@ -77,13 +88,18 @@ POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
 subdir = doc
-DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am texinfo.tex
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/attribute.m4 \
-	$(top_srcdir)/m4/lzo.m4 $(top_srcdir)/m4/openssl.m4 \
+	$(top_srcdir)/m4/ax_append_flag.m4 \
-	$(top_srcdir)/m4/zlib.m4 $(top_srcdir)/configure.in
+	$(top_srcdir)/m4/ax_cflags_warn_all.m4 \
+	$(top_srcdir)/m4/ax_check_compile_flag.m4 \
+	$(top_srcdir)/m4/ax_check_link_flag.m4 \
+	$(top_srcdir)/m4/ax_require_defined.m4 $(top_srcdir)/m4/lzo.m4 \
+	$(top_srcdir)/m4/openssl.m4 $(top_srcdir)/m4/zlib.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON)
 mkinstalldirs = $(install_sh) -d
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
@@ -130,7 +146,7 @@ AM_V_texidevnull = $(am__v_texidevnull_@AM_V@)
 am__v_texidevnull_ = $(am__v_texidevnull_@AM_DEFAULT_V@)
 am__v_texidevnull_0 = > /dev/null
 am__v_texidevnull_1 = 
-INFO_DEPS = tinc.info
+INFO_DEPS = $(srcdir)/tinc.info
 am__TEXINFO_TEX_DIR = $(srcdir)
 DVIS = tinc.dvi
 PDFS = tinc.pdf
@@ -181,14 +197,9 @@ man8dir = $(mandir)/man8
 NROFF = nroff
 MANS = $(man_MANS)
 am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+am__DIST_COMMON = $(srcdir)/Makefile.in $(tinc_TEXINFOS) texinfo.tex
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
-
-# Use `ginstall' in the definition of man_MANS to avoid
-# confusion with the `install' target.  The install rule transforms `ginstall'
-# to install before applying any user-specified name transformations.
-transform = s/ginstall/install/; @program_transform_name@
 ACLOCAL = @ACLOCAL@
-ALLOCA = @ALLOCA@
 AMTAR = @AMTAR@
 AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
 AUTOCONF = @AUTOCONF@
@@ -209,7 +220,6 @@ ECHO_T = @ECHO_T@
 EGREP = @EGREP@
 EXEEXT = @EXEEXT@
 GREP = @GREP@
-INCLUDES = @INCLUDES@
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
@@ -218,9 +228,7 @@ INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
 LDFLAGS = @LDFLAGS@
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
-LN_S = @LN_S@
 LTLIBOBJS = @LTLIBOBJS@
-MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
 MKDIR_P = @MKDIR_P@
 OBJEXT = @OBJEXT@
@@ -232,7 +240,6 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
-RANLIB = @RANLIB@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
@@ -279,29 +286,33 @@ pdfdir = @pdfdir@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
+runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
 sysconfdir = @sysconfdir@
+systemd_path = @systemd_path@
 target_alias = @target_alias@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 info_TEXINFOS = tinc.texi
+tinc_TEXINFOS = tincinclude.texi
 man_MANS = tincd.8 tinc.conf.5
-EXTRA_DIST = tincinclude.texi.in tincd.8.in tinc.conf.5.in sample-config.tar.gz
+EXTRA_DIST = tincinclude.texi.in tincd.8.in tinc.conf.5.in sample-config
-CLEANFILES = *.html tinc.info tincd.8 tinc.conf.5 tincinclude.texi
+CLEANFILES = *.html tincd.8 tinc.conf.5 tincinclude.texi
 substitute = sed \
 	-e s,'@PACKAGE\@',"$(PACKAGE)",g \
 	-e s,'@VERSION\@',"$(VERSION)",g \
 	-e s,'@sysconfdir\@',"$(sysconfdir)",g \
+	-e s,'@runstatedir\@',"$(runstatedir)",g \
 	-e s,'@localstatedir\@',"$(localstatedir)",g
 
 all: all-am
 
 .SUFFIXES:
-.SUFFIXES: .dvi .ps
+.SUFFIXES: .dvi .html .info .pdf .ps .texi
-$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
 	@for dep in $?; do \
 	  case '$(am__configure_deps)' in \
 	    *$$dep*) \
@@ -313,68 +324,71 @@ $(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__confi
 	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu doc/Makefile'; \
 	$(am__cd) $(top_srcdir) && \
 	  $(AUTOMAKE) --gnu doc/Makefile
-.PRECIOUS: Makefile
 Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	@case '$?' in \
 	  *config.status*) \
 	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
 	  *) \
-	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
-	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
 	esac;
 
 $(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+$(top_srcdir)/configure:  $(am__configure_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
-$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 $(am__aclocal_m4_deps):
 
-tinc.info: tinc.texi 
+.texi.info:
 	$(AM_V_MAKEINFO)restore=: && backupdir="$(am__leading_dot)am$$$$" && \
+	am__cwd=`pwd` && $(am__cd) $(srcdir) && \
 	rm -rf $$backupdir && mkdir $$backupdir && \
 	if ($(MAKEINFO) --version) >/dev/null 2>&1; then \
 	  for f in $@ $@-[0-9] $@-[0-9][0-9] $(@:.info=).i[0-9] $(@:.info=).i[0-9][0-9]; do \
 	    if test -f $$f; then mv $$f $$backupdir; restore=mv; else :; fi; \
 	  done; \
 	else :; fi && \
+	cd "$$am__cwd"; \
 	if $(MAKEINFO) $(AM_MAKEINFOFLAGS) $(MAKEINFOFLAGS) -I $(srcdir) \
-	 -o $@ `test -f 'tinc.texi' || echo '$(srcdir)/'`tinc.texi; \
+	 -o $@ $<; \
 	then \
 	  rc=0; \
+	  $(am__cd) $(srcdir); \
 	else \
 	  rc=$$?; \
+	  $(am__cd) $(srcdir) && \
 	  $$restore $$backupdir/* `echo "./$@" | sed 's|[^/]*$$||'`; \
 	fi; \
 	rm -rf $$backupdir; exit $$rc
 
-tinc.dvi: tinc.texi  
+.texi.dvi:
 	$(AM_V_TEXI2DVI)TEXINPUTS="$(am__TEXINFO_TEX_DIR)$(PATH_SEPARATOR)$$TEXINPUTS" \
 	MAKEINFO='$(MAKEINFO) $(AM_MAKEINFOFLAGS) $(MAKEINFOFLAGS) -I $(srcdir)' \
 	$(TEXI2DVI) $(AM_V_texinfo) --build-dir=$(@:.dvi=.t2d) -o $@ $(AM_V_texidevnull) \
-	`test -f 'tinc.texi' || echo '$(srcdir)/'`tinc.texi
+	$<
 
-tinc.pdf: tinc.texi  
+.texi.pdf:
 	$(AM_V_TEXI2PDF)TEXINPUTS="$(am__TEXINFO_TEX_DIR)$(PATH_SEPARATOR)$$TEXINPUTS" \
 	MAKEINFO='$(MAKEINFO) $(AM_MAKEINFOFLAGS) $(MAKEINFOFLAGS) -I $(srcdir)' \
 	$(TEXI2PDF) $(AM_V_texinfo) --build-dir=$(@:.pdf=.t2p) -o $@ $(AM_V_texidevnull) \
-	`test -f 'tinc.texi' || echo '$(srcdir)/'`tinc.texi
+	$<
 
-tinc.html: tinc.texi  
+.texi.html:
 	$(AM_V_MAKEINFO)rm -rf $(@:.html=.htp)
 	$(AM_V_at)if $(MAKEINFOHTML) $(AM_MAKEINFOHTMLFLAGS) $(MAKEINFOFLAGS) -I $(srcdir) \
-	 -o $(@:.html=.htp) `test -f 'tinc.texi' || echo '$(srcdir)/'`tinc.texi; \
+	 -o $(@:.html=.htp) $<; \
 	then \
-	  rm -rf $@; \
+	  rm -rf $@ && mv $(@:.html=.htp) $@; \
-	  if test ! -d $(@:.html=.htp) && test -d $(@:.html=); then \
-	    mv $(@:.html=) $@; else mv $(@:.html=.htp) $@; fi; \
 	else \
-	  if test ! -d $(@:.html=.htp) && test -d $(@:.html=); then \
+	  rm -rf $(@:.html=.htp); exit 1; \
-	    rm -rf $(@:.html=); else rm -Rf $(@:.html=.htp) $@; fi; \
-	  exit 1; \
 	fi
+$(srcdir)/tinc.info: tinc.texi $(tinc_TEXINFOS)
+tinc.dvi: tinc.texi $(tinc_TEXINFOS)
+tinc.pdf: tinc.texi $(tinc_TEXINFOS)
+tinc.html: tinc.texi $(tinc_TEXINFOS)
 .dvi.ps:
 	$(AM_V_DVIPS)TEXINPUTS="$(am__TEXINFO_TEX_DIR)$(PATH_SEPARATOR)$$TEXINPUTS" \
 	$(DVIPS) $(AM_V_texinfo) -o $@ $<
@@ -561,7 +575,10 @@ ctags CTAGS:
 cscope cscopelist:
 
 
-distdir: $(DISTFILES)
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
 	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
 	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
 	list='$(DISTFILES)'; \
@@ -810,32 +827,26 @@ uninstall-man: uninstall-man5 uninstall-man8
 	uninstall-html-am uninstall-info-am uninstall-man \
 	uninstall-man5 uninstall-man8 uninstall-pdf-am uninstall-ps-am
 
+.PRECIOUS: Makefile
 
-# For additional rules usually of interest only to the maintainer,
-# see GNUmakefile and Makefile.maint.
-
-sample-config.tar.gz: sample-config
-	GZIP=$(GZIP_ENV) $(AMTAR) chozf sample-config.tar.gz --exclude .svn sample-config
 
 texi2html: tinc.texi
-	texi2html -split=chapter tinc.texi
+	$(AM_V_GEN)texi2html -split=chapter $<
 
 tincd.8.html: tincd.8
-	w3mman2html $< > $@
+	$(AM_V_GEN)w3mman2html $< > $@
 
 tinc.conf.5.html: tinc.conf.5
-	w3mman2html $< > $@
+	$(AM_V_GEN)w3mman2html $< > $@
 
-tincd.8: tincd.8.in
+tincd.8: $(srcdir)/tincd.8.in
-	$(substitute) tincd.8.in > tincd.8
+	$(AM_V_GEN)$(substitute) $(srcdir)/tincd.8.in > $@
 
-tinc.conf.5: tinc.conf.5.in
+tinc.conf.5: $(srcdir)/tinc.conf.5.in
-	$(substitute) tinc.conf.5.in > tinc.conf.5
+	$(AM_V_GEN)$(substitute) $(srcdir)/tinc.conf.5.in > $@
 
-tincinclude.texi: tincinclude.texi.in
+tincinclude.texi: $(srcdir)/tincinclude.texi.in
-	$(substitute) tincinclude.texi.in > tincinclude.texi
+	$(AM_V_GEN)$(substitute) $(srcdir)/tincinclude.texi.in > $@
-
-tinc.texi: tincinclude.texi
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.

doc/sample-config/hosts/alpha

@@ -0,0 +1,15 @@
+# Sample host configuration file
+
+# The real IP address of this tinc host. Can be used by other tinc hosts.
+Address = 123.234.35.67
+
+# Portnumber for incoming connections. Default is 655.
+Port = 655
+
+# Subnet on the virtual private network that is local for this host.
+Subnet = 192.168.1.0/24
+
+# The public key generated by `tincd -n example -K' is stored here
+-----BEGIN RSA PUBLIC KEY-----
+...
+-----END RSA PUBLIC KEY-----

doc/sample-config/hosts/beta

@@ -0,0 +1,16 @@
+# Sample host configuration file
+# This file was generated by host beta.
+
+# The real IP address of this tinc host. Can be used by other tinc hosts.
+Address = 123.45.67.189
+
+# Portnumber for incoming connections. Default is 655.
+Port = 6500
+
+# Subnet on the virtual private network that is local for this host.
+Subnet = 192.168.2.0/24
+
+# The public key generated by `tincd -n example -K' is stored here
+-----BEGIN RSA PUBLIC KEY-----
+...
+-----END RSA PUBLIC KEY-----

doc/sample-config/rsa_key.priv

@@ -0,0 +1 @@
+# Generate this file with `tincd -n example -K`

doc/sample-config/tinc-down

@@ -0,0 +1,4 @@
+#!/bin/sh
+# This file closes down the tap device.
+
+ifconfig $INTERFACE down

doc/sample-config/tinc-up

@@ -0,0 +1,11 @@
+#!/bin/sh
+# This file sets up the tap device.
+# It gives you the freedom to do anything you want with it.
+# Use the correct name for the tap device:
+# The environment variable $INTERFACE is set to the right name
+# on most platforms, but if it doesn't work try to set it manually.
+
+# Give it the right ip and netmask. Remember, the subnet of the
+# tap device must be larger than that of the individual Subnets
+# as defined in the host configuration file!
+ifconfig $INTERFACE 192.168.1.1 netmask 255.255.0.0

doc/sample-config/tinc.conf

@@ -0,0 +1,22 @@
+# Sample tinc configuration file
+
+# This is a comment.
+# Spaces and tabs are eliminated.
+# The = sign isn't strictly necessary any longer, though you may want
+# to leave it in as it improves readability :)
+# Variable names are treated case insensitive.
+
+# The name of this tinc host. Required.
+Name = alpha
+
+# The internet host to connect with.
+# Comment these out to make yourself a listen-only connection
+# You must use the name of another tinc host.
+# May be used multiple times for redundance.
+ConnectTo = beta
+
+# The tap device tinc will use.
+# /dev/tap0 for ethertap, FreeBSD or OpenBSD
+# /dev/tun0 for Solaris
+# /dev/net/tun for Linux tun/tap
+Device = /dev/net/tun

doc/tinc.conf.5.in

@@ -1,4 +1,4 @@
-.Dd 2010-01-16
+.Dd 2016-10-29
 .Dt TINC.CONF 5
 .\" Manual page created by:
 .\" Ivo Timmermans
@@ -54,7 +54,7 @@ But it is highly recommended that you use this feature of
 because it will be so much clearer whom your daemon talks to.
 Hence, we will assume that you use it.
 .Sh NAMES
-Each tinc daemon should have a name that is unique in the network which it will be part of.
+Each tinc daemon must have a name that is unique in the network which it will be part of.
 The name will be used by other tinc daemons for identification.
 The name has to be declared in the
 .Pa @sysconfdir@/tinc/ Ns Ar NETNAME Ns Pa /tinc.conf
@@ -222,7 +222,7 @@ Also note that this can cause decrypted VPN packets to be sent out on a real net
 Create a UNIX socket with the filename specified by
 .Va Device ,
 or
-.Pa @localstatedir@/run/ Ns Ar NETNAME Ns Pa .umlsocket
+.Pa @runstatedir@/ Ns Ar NETNAME Ns Pa .umlsocket
 if not specified.
 .Nm tinc
 will wait for a User Mode Linux instance to connect to this socket.
@@ -231,7 +231,7 @@ Uses the libvdeplug library to connect to a Virtual Distributed Ethernet switch,
 using the UNIX socket specified by
 .Va Device ,
 or
-.Pa @localstatedir@/run/vde.ctl
+.Pa @runstatedir@/vde.ctl
 if not specified.
 .El
 Also, in case tinc does not seem to correctly interpret packets received from the virtual network device,
@@ -250,6 +250,10 @@ Tinc will expect packets read from the virtual network device
 to start with a four byte header containing the address family,
 followed by an IP header.
 This mode should support both IPv4 and IPv6 packets.
+.It utun Pq OS X
+Set type to utun.
+This is only supported on OS X version 10.6.8 and higher, but doesn't require the tuntaposx module.
+This mode should support both IPv4 and IPv6 packets.
 .It tap Pq BSD and Linux
 Set type to tap.
 Tinc will expect packets read from the virtual network device
@@ -362,7 +366,7 @@ If
 .Va Name
 is
 .Li $HOST ,
-but no such environment variable exist, the hostname will be read using the gethostnname() system call.
+but no such environment variable exist, the hostname will be read using the gethostname() system call.
 .It Va PingInterval Li = Ar seconds Pq 60
 The number of seconds of inactivity that
 .Nm tinc
@@ -416,7 +420,7 @@ and
 are available.
 .El
 .It Va ReplayWindow Li = Ar bytes Pq 16
-vhis is the size of the replay tracking window for each remote node, in bytes.
+This is the size of the replay tracking window for each remote node, in bytes.
 The window is a bitfield which tracks 1 packet per bit, so for example
 the default setting of 16 will track up to 128 packets in the window.  In high
 bandwidth scenarios, setting this to a higher value can reduce packet loss from
@@ -428,7 +432,8 @@ traffic.
 When this option is enabled tinc will only use Subnet statements which are
 present in the host config files in the local
 .Pa @sysconfdir@/tinc/ Ns Ar NETNAME Ns Pa /hosts/
-directory.
+directory. Subnets learned via connections to other nodes and which are not
+present in the local host config files are ignored.
 .It Va TunnelServer Li = yes | no Po no Pc Bq experimental
 When this option is enabled tinc will no longer forward information between other tinc daemons,
 and will only allow connections with nodes for which host config files are present in the local
@@ -463,9 +468,9 @@ Multiple
 .Va Address
 variables can be specified, in which case each address will be tried until a working
 connection has been established.
-.It Va Cipher Li = Ar cipher Pq blowfish
+.It Va Cipher Li = Ar cipher Pq aes-256-cbc
 The symmetric cipher algorithm used to encrypt UDP packets.
-Any cipher supported by OpenSSL is recognised.
+Any cipher supported by LibreSSL or OpenSSL is recognised.
 Furthermore, specifying
 .Qq none
 will turn off packet encryption.
@@ -478,19 +483,16 @@ Fragmentation Needed or Packet too Big messages are dropped by firewalls.
 This option sets the level of compression used for UDP packets.
 Possible values are 0 (off), 1 (fast zlib) and any integer up to 9 (best zlib),
 10 (fast lzo) and 11 (best lzo).
-.It Va Digest Li = Ar digest Pq sha1
+.It Va Digest Li = Ar digest Pq sha256
 The digest algorithm used to authenticate UDP packets.
-Any digest supported by OpenSSL is recognised.
+Any digest supported by LibreSSL or OpenSSL is recognised.
 Furthermore, specifying
 .Qq none
 will turn off packet authentication.
 .It Va IndirectData Li = yes | no Pq no
-This option specifies whether other tinc daemons besides the one you specified with
+When set to yes, only nodes which already have a meta connection to you
-.Va ConnectTo
+will try to establish direct communication with you.
-can make a direct connection to you.
+It is best to leave this option out or set it to no.
-This is especially useful if you are behind a firewall
-and it is impossible to make a connection from the outside to your tinc daemon.
-Otherwise, it is best to leave this option out or set it to no.
 .It Va MACLength Li = Ar length Pq 4
 The length of the message authentication code used to authenticate UDP packets.
 Can be anything from
@@ -558,7 +560,15 @@ UDP is possible or not.
 .Sh SCRIPTS
 Apart from reading the server and host configuration files,
 tinc can also run scripts at certain moments.
-Under Windows (not Cygwin), the scripts should have the extension
+Below is a list of filenames of scripts and a description of when they are run.
+A script is only run if it exists and if it is executable.
+.Pp
+Scripts are run synchronously;
+this means that tinc will temporarily stop processing packets until the called script finishes executing.
+This guarantees that scripts will execute in the exact same order as the events that trigger them.
+If you need to run commands asynchronously, you have to ensure yourself that they are being run in the background.
+.Pp
+Under Windows (not Cygwin), the scripts must have the extension
 .Pa .bat .
 .Bl -tag -width indent
 .It Pa @sysconfdir@/tinc/ Ns Ar NETNAME Ns Pa /tinc-up
@@ -566,6 +576,7 @@ This is the most important script.
 If it is present it will be executed right after the tinc daemon has been started and has connected to the virtual network device.
 It should be used to set up the corresponding network interface,
 but can also be used to start other things.
+.Pp
 Under Windows you can use the Network Connections control panel instead of creating this script.
 .It Pa @sysconfdir@/tinc/ Ns Ar NETNAME Ns Pa /tinc-down
 This script is started right before the tinc daemon quits.
@@ -631,6 +642,8 @@ The top directory for configuration files.
 .It Pa @sysconfdir@/tinc/ Ns Ar NETNAME Ns Pa /tinc.conf
 The default name of the server configuration file for net
 .Ar NETNAME .
+.It Pa @sysconfdir@/tinc/ Ns Ar NETNAME Ns Pa /conf.d/
+Optional directory from which any *.conf file will be loaded
 .It Pa @sysconfdir@/tinc/ Ns Ar NETNAME Ns Pa /hosts/
 Host configuration files are kept in this directory.
 .It Pa @sysconfdir@/tinc/ Ns Ar NETNAME Ns Pa /tinc-up
@@ -644,7 +657,7 @@ its connection to the virtual network device.
 .El
 .Sh SEE ALSO
 .Xr tincd 8 ,
-.Pa http://www.tinc-vpn.org/ ,
+.Pa https://www.tinc-vpn.org/ ,
 .Pa http://www.tldp.org/LDP/nag2/ .
 .Pp
 The full documentation for

doc/tinc.texi

@@ -15,7 +15,7 @@
 
 This is the info manual for @value{PACKAGE} version @value{VERSION}, a Virtual Private Network daemon.
 
-Copyright @copyright{} 1998-2013 Ivo Timmermans,
+Copyright @copyright{} 1998-2019 Ivo Timmermans,
 Guus Sliepen <guus@@tinc-vpn.org> and
 Wessel Dankers <wsl@@tinc-vpn.org>.
 
@@ -39,7 +39,7 @@ permission notice identical to this one.
 @vskip 0pt plus 1filll
 This is the info manual for @value{PACKAGE} version @value{VERSION}, a Virtual Private Network daemon.
 
-Copyright @copyright{} 1998-2013 Ivo Timmermans,
+Copyright @copyright{} 1998-2019 Ivo Timmermans,
 Guus Sliepen <guus@@tinc-vpn.org> and
 Wessel Dankers <wsl@@tinc-vpn.org>.
 
@@ -155,7 +155,7 @@ professional package.
 
 @cindex traditional VPNs
 @cindex scalability
-Tinc also allows more than two sites to connect to eachother and form a single VPN.
+Tinc also allows more than two sites to connect to each other and form a single VPN.
 Traditionally VPNs are created by making tunnels, which only have two endpoints.
 Larger VPNs with more sites are created by adding more tunnels.
 Tinc takes another approach: only endpoints are specified,
@@ -176,7 +176,7 @@ available too.
 @section Supported platforms
 
 @cindex platforms
-Tinc has been verified to work under Linux, FreeBSD, OpenBSD, NetBSD, MacOS/X (Darwin), Solaris, and Windows (both natively and in a Cygwin environment),
+Tinc has been verified to work under Linux, FreeBSD, OpenBSD, NetBSD, Mac OS X (Darwin), Solaris, and Windows (both natively and in a Cygwin environment),
 with various hardware architectures.  These are some of the platforms
 that are supported by the universal tun/tap device driver or other virtual network device drivers.
 Without such a driver, tinc will most
@@ -186,7 +186,7 @@ packets.
 @cindex release
 For an up to date list of supported platforms, please check the list on
 our website:
-@uref{http://www.tinc-vpn.org/platforms/}.
+@uref{https://www.tinc-vpn.org/platforms/}.
 
 @c
 @c
@@ -224,7 +224,7 @@ support tinc.
 * Configuration of OpenBSD kernels::
 * Configuration of NetBSD kernels::
 * Configuration of Solaris kernels::
-* Configuration of Darwin (MacOS/X) kernels::
+* Configuration of Darwin (Mac OS X) kernels::
 * Configuration of Windows::
 @end menu
 
@@ -261,19 +261,14 @@ alias char-major-10-200 tun
 @subsection Configuration of FreeBSD kernels
 
 For FreeBSD version 4.1 and higher, tun and tap drivers are included in the default kernel configuration.
-The tap driver can be loaded with @code{kldload if_tap}, or by adding @code{if_tap_load="YES"} to @file{/boot/loader.conf}. 
+The tap driver can be loaded with @code{kldload if_tap}, or by adding @code{if_tap_load="YES"} to @file{/boot/loader.conf}.
 
 
 @c ==================================================================
 @node       Configuration of OpenBSD kernels
 @subsection Configuration of OpenBSD kernels
 
-For OpenBSD version 2.9 and higher,
+Recent versions of OpenBSD come with both tun and tap devices enabled in the default kernel configuration.
-the tun driver is included in the default kernel configuration.
-There is also a kernel patch from @uref{http://diehard.n-r-g.com/stuff/openbsd/}
-which adds a tap device to OpenBSD which should work with tinc,
-but with recent versions of OpenBSD,
-a tun device can act as a tap device by setting the link0 option with ifconfig.
 
 
 @c ==================================================================
@@ -293,24 +288,23 @@ Tunneling IPv6 may not work on NetBSD's tun device.
 For Solaris 8 (SunOS 5.8) and higher,
 the tun driver may or may not be included in the default kernel configuration.
 If it isn't, the source can be downloaded from @uref{http://vtun.sourceforge.net/tun/}.
-For x86 and sparc64 architectures, precompiled versions can be found at @uref{http://www.monkey.org/~dugsong/fragroute/}.
+For x86 and sparc64 architectures, precompiled versions can be found at @uref{https://www.monkey.org/~dugsong/fragroute/}.
 If the @file{net/if_tun.h} header file is missing, install it from the source package.
 
 
 @c ==================================================================
-@node       Configuration of Darwin (MacOS/X) kernels
+@node       Configuration of Darwin (Mac OS X) kernels
-@subsection Configuration of Darwin (MacOS/X) kernels
+@subsection Configuration of Darwin (Mac OS X) kernels
 
 Tinc on Darwin relies on a tunnel driver for its data acquisition from the kernel.
-Tinc supports either the driver from @uref{http://tuntaposx.sourceforge.net/},
+OS X version 10.6.8 and later have a built-in tun driver called "utun".
-which supports both tun and tap style devices,
+Tinc also supports the driver from @uref{http://tuntaposx.sourceforge.net/},
-and also the driver from from @uref{http://chrisp.de/en/projects/tunnel.html}.
+which supports both tun and tap style devices.
-The former driver is recommended.
-The tunnel driver must be loaded before starting tinc with the following command:
 
-@example
+By default, tinc expects the tuntaposx driver to be installed.
-kmodload tunnel
+To use the utun driver, set add @code{Device = utunX} to @file{tinc.conf},
-@end example
+where X is the desired number for the utun interface.
+You can also omit the number, in which case the first free number will be chosen.
 
 
 @c ==================================================================
@@ -318,7 +312,7 @@ kmodload tunnel
 @subsection Configuration of Windows
 
 You will need to install the latest TAP-Win32 driver from OpenVPN.
-You can download it from @uref{http://openvpn.sourceforge.net}.
+You can download it from @uref{https://openvpn.net/index.php/open-source/downloads.html}.
 Using the Network Connections control panel,
 configure the TAP-Win32 network interface in the same way as you would do from the tinc-up script,
 as explained in the rest of the documentation.
@@ -330,26 +324,27 @@ as explained in the rest of the documentation.
 
 @cindex requirements
 @cindex libraries
-Before you can configure or build tinc, you need to have the OpenSSL,
+Before you can configure or build tinc, you need to have the LibreSSL or OpenSSL,
 zlib and lzo libraries installed on your system.  If you try to configure tinc without
 having them installed, configure will give you an error message, and stop.
 
 @menu
-* OpenSSL::
+* LibreSSL/OpenSSL::
 * zlib::
 * lzo::
 @end menu
 
 
 @c ==================================================================
-@node       OpenSSL
+@node       LibreSSL/OpenSSL
-@subsection OpenSSL
+@subsection LibreSSL/OpenSSL
 
+@cindex LibreSSL
 @cindex OpenSSL
 For all cryptography-related functions, tinc uses the functions provided
-by the OpenSSL library.
+by the LibreSSL or the OpenSSL library.
 
-If this library is not installed, you wil get an error when configuring
+If this library is not installed, you will get an error when configuring
 tinc for build.  Support for running tinc with other cryptographic libraries
 installed @emph{may} be added in the future.
 
@@ -357,21 +352,23 @@ You can use your operating system's package manager to install this if
 available.  Make sure you install the development AND runtime versions
 of this package.
 
-If you have to install OpenSSL manually, you can get the source code
+If your operating system comes neither with LibreSSL or OpenSSL, you have to
-from @url{http://www.openssl.org/}.  Instructions on how to configure,
+install one manually.  It is recommended that you get the latest version of
-build and install this package are included within the package.  Please
+LibreSSL from @url{http://www.libressl.org/}.  Instructions on how to
-make sure you build development and runtime libraries (which is the
+configure, build and install this package are included within the package.
+Please make sure you build development and runtime libraries (which is the
 default).
 
-If you installed the OpenSSL libraries from source, it may be necessary
+If you installed the LibreSSL or OpenSSL libraries from source, it may be necessary
 to let configure know where they are, by passing configure one of the
---with-openssl-* parameters.
+--with-openssl-* parameters. Note that you even have to use --with-openssl-* if you
+are using LibreSSL.
 
 @example
---with-openssl=DIR      OpenSSL library and headers prefix
+--with-openssl=DIR      LibreSSL/OpenSSL library and headers prefix
---with-openssl-include=DIR OpenSSL headers directory
+--with-openssl-include=DIR LibreSSL/OpenSSL headers directory
                         (Default is OPENSSL_DIR/include)
---with-openssl-lib=DIR  OpenSSL library directory
+--with-openssl-lib=DIR  LibreSSL/OpenSSL library directory
                         (Default is OPENSSL_DIR/lib)
 @end example
 
@@ -382,7 +379,7 @@ to let configure know where they are, by passing configure one of the
 The complete source code of tinc is covered by the GNU GPL version 2.
 Since the license under which OpenSSL is distributed is not directly
 compatible with the terms of the GNU GPL
-@uref{http://www.openssl.org/support/faq.html#LEGAL2}, we
+@uref{https://www.openssl.org/support/faq.html#LEGAL2}, we
 include an exemption to the GPL (see also the file COPYING.README) to allow
 everyone to create a statically or dynamically linked executable:
 
@@ -398,8 +395,8 @@ we also present the following exemption:
 
 @quotation
 Hereby I grant a special exception to the tinc VPN project
-(http://www.tinc-vpn.org/) to link the LZO library with the OpenSSL library
+(https://www.tinc-vpn.org/) to link the LZO library with the OpenSSL library
-(http://www.openssl.org).
+(https://www.openssl.org).
 
 Markus F.X.J. Oberhumer
 @end quotation
@@ -413,7 +410,7 @@ Markus F.X.J. Oberhumer
 For the optional compression of UDP packets, tinc uses the functions provided
 by the zlib library.
 
-If this library is not installed, you wil get an error when running the
+If this library is not installed, you will get an error when running the
 configure script.  You can either install the zlib library, or disable support
 for zlib compression by using the "--disable-zlib" option when running the
 configure script. Note that if you disable support for zlib, the resulting
@@ -424,7 +421,7 @@ available.  Make sure you install the development AND runtime versions
 of this package.
 
 If you have to install zlib manually, you can get the source code
-from @url{http://www.gzip.org/zlib/}.  Instructions on how to configure,
+from @url{https://zlib.net/}.  Instructions on how to configure,
 build and install this package are included within the package.  Please
 make sure you build development and runtime libraries (which is the
 default).
@@ -437,7 +434,7 @@ default).
 @cindex lzo
 Another form of compression is offered using the LZO library.
 
-If this library is not installed, you wil get an error when running the
+If this library is not installed, you will get an error when running the
 configure script.  You can either install the LZO library, or disable support
 for LZO compression by using the "--disable-lzo" option when running the
 configure script. Note that if you disable support for LZO, the resulting
@@ -448,7 +445,7 @@ available.  Make sure you install the development AND runtime versions
 of this package.
 
 If you have to install lzo manually, you can get the source code
-from @url{http://www.oberhumer.com/opensource/lzo/}.  Instructions on how to configure,
+from @url{https://www.oberhumer.com/opensource/lzo/}.  Instructions on how to configure,
 build and install this package are included within the package.  Please
 make sure you build development and runtime libraries (which is the
 default).
@@ -474,9 +471,7 @@ system startup scripts and sample configurations.
 If you cannot use one of the precompiled packages, or you want to compile tinc
 for yourself, you can use the source.  The source is distributed under
 the GNU General Public License (GPL).  Download the source from the
-@uref{http://www.tinc-vpn.org/download/, download page}, which has
+@uref{https://www.tinc-vpn.org/download/, download page}.
-the checksums of these files listed; you may wish to check these with
-md5sum before continuing.
 
 Tinc comes in a convenient autoconf/automake package, which you can just
 treat the same as any other package.  Which is just untar it, type
@@ -503,29 +498,28 @@ you can use the package management tools of that distribution to install tinc.
 The documentation that comes along with your distribution will tell you how to do that.
 
 @menu
-* Darwin (MacOS/X) build environment::
+* Darwin (Mac OS X) build environment::
 * Cygwin (Windows) build environment::
 * MinGW (Windows) build environment::
 @end menu
 
 
 @c ==================================================================
-@node       Darwin (MacOS/X) build environment
+@node       Darwin (Mac OS X) build environment
-@subsection Darwin (MacOS/X) build environment
+@subsection Darwin (Mac OS X) build environment
 
-In order to build tinc on Darwin, you need to install the MacOS/X Developer Tools
+In order to build tinc on Darwin, you need to install Xcode from @uref{https://developer.apple.com/xcode/}.
-from @uref{http://developer.apple.com/tools/macosxtools.html} and
+It might also help to install a recent version of Fink from @uref{http://www.finkproject.org/}.
-a recent version of Fink from @uref{http://www.finkproject.org/}.
 
-After installation use fink to download and install the following packages:
+You need to download and install LibreSSL (or OpenSSL) and LZO,
-autoconf25, automake, dlcompat, m4, openssl, zlib and lzo.
+either directly from their websites (see @ref{Libraries}) or using Fink.
 
 @c ==================================================================
 @node       Cygwin (Windows) build environment
 @subsection Cygwin (Windows) build environment
 
 If Cygwin hasn't already been installed, install it directly from
-@uref{http://www.cygwin.com/}.
+@uref{https://www.cygwin.com/}.
 
 When tinc is compiled in a Cygwin environment, it can only be run in this environment,
 but all programs, including those started outside the Cygwin environment, will be able to use the VPN.
@@ -536,6 +530,7 @@ It will also support all features.
 @subsection MinGW (Windows) build environment
 
 You will need to install the MinGW environment from @uref{http://www.mingw.org}.
+You also need to download and install LibreSSL (or OpenSSL) and LZO.
 
 When tinc is compiled using MinGW it runs natively under Windows,
 it is not necessary to keep MinGW installed.
@@ -666,7 +661,7 @@ It is not required if you only run one tinc daemon,
 it doesn't even have to be the same on all the sites of your VPN,
 but it is recommended that you choose one anyway.
 
-We will asume you use a netname throughout this document.
+We will assume you use a netname throughout this document.
 This means that you call tincd with the -n argument,
 which will assign a netname to this daemon.
 
@@ -694,7 +689,7 @@ reads in the configuration file tinc.conf.
 If it sees one or more  `ConnectTo' values pointing to other tinc daemons in that file,
 it will try to connect to those other daemons.
 Whether this succeeds or not and whether `ConnectTo' is specified or not,
-tinc will listen for incoming connection from other deamons.
+tinc will listen for incoming connection from other daemons.
 If you did specify a `ConnectTo' value and the other side is not responding,
 tinc will keep retrying.
 This means that once started, tinc will stay running until you tell it to stop,
@@ -718,6 +713,9 @@ The actual configuration of the daemon is done in the file
 @file{@value{sysconfdir}/tinc/@var{netname}/tinc.conf} and at least one other file in the directory
 @file{@value{sysconfdir}/tinc/@var{netname}/hosts/}.
 
+An optional directory @file{@value{sysconfdir}/tinc/@var{netname}/conf.d} can be added from which
+any .conf file will be read.
+
 These file consists of comments (lines started with a #) or assignments
 in the form of
 
@@ -826,7 +824,6 @@ Do not use this option if you use switch mode and want to use IPv6.
 @item Device = <@var{device}> (@file{/dev/tap0}, @file{/dev/net/tun} or other depending on platform)
 The virtual network device to use.
 Tinc will automatically detect what kind of device it is.
-Note that you can only use one device per daemon.
 Under Windows, use @var{Interface} instead of @var{Device}.
 Note that you can only use one device per daemon.
 See also @ref{Device files}.
@@ -863,7 +860,7 @@ Also note that this can cause decrypted VPN packets to be sent out on a real net
 @cindex UML
 @item uml (not compiled in by default)
 Create a UNIX socket with the filename specified by
-@var{Device}, or @file{@value{localstatedir}/run/@var{netname}.umlsocket}
+@var{Device}, or @file{@value{runstatedir}/@var{netname}.umlsocket}
 if not specified.
 Tinc will wait for a User Mode Linux instance to connect to this socket.
 
@@ -871,7 +868,7 @@ Tinc will wait for a User Mode Linux instance to connect to this socket.
 @item vde (not compiled in by default)
 Uses the libvdeplug library to connect to a Virtual Distributed Ethernet switch,
 using the UNIX socket specified by
-@var{Device}, or @file{@value{localstatedir}/run/vde.ctl}
+@var{Device}, or @file{@value{runstatedir}/vde.ctl}
 if not specified.
 @end table
 
@@ -897,6 +894,12 @@ to start with a four byte header containing the address family,
 followed by an IP header.
 This mode should support both IPv4 and IPv6 packets.
 
+@cindex utun
+@item utun (OS X)
+Set type to utun.
+This is only supported on OS X version 10.6.8 and higher, but doesn't require the tuntaposx module.
+This mode should support both IPv4 and IPv6 packets.
+
 @item tap (BSD and Linux)
 Set type to tap.
 Tinc will expect packets read from the virtual network device
@@ -944,12 +947,16 @@ that is executed, the graph is then sent to stdin.
 @item Hostnames = <yes|no> (no)
 This option selects whether IP addresses (both real and on the VPN)
 should be resolved.  Since DNS lookups are blocking, it might affect
-tinc's efficiency, even stopping the daemon for a few seconds everytime
+tinc's efficiency, even stopping the daemon for a few seconds every time
 it does a lookup if your DNS server is not responding.
 
 This does not affect resolving hostnames to IP addresses from the
 configuration file, but whether hostnames should be resolved while logging.
 
+@cindex IffOneQueue
+@item IffOneQueue = <yes|no> (no) [experimental]
+(Linux only) Set IFF_ONE_QUEUE flag on TUN/TAP devices.
+
 @cindex Interface
 @item Interface = <@var{interface}>
 Defines the name of the interface corresponding to the virtual network device.
@@ -957,6 +964,13 @@ Depending on the operating system and the type of device this may or may not act
 Under Windows, this variable is used to select which network interface will be used.
 If you specified a Device, this variable is almost always already correctly set.
 
+@cindex KeyExpire
+@item KeyExpire = <@var{seconds}> (3600)
+This option controls the time the encryption keys used to encrypt the data
+are valid.  It is common practice to change keys at regular intervals to
+make it even harder for crackers, even though it is thought to be nearly
+impossible to crack a single key.
+
 @cindex LocalDiscovery
 @item LocalDiscovery = <yes | no> (no) [experimental]
 When enabled, tinc will try to detect peers that are on the same local network.
@@ -967,6 +981,15 @@ which normally would prevent the peers from learning each other's LAN address.
 Currently, local discovery is implemented by sending broadcast packets to the LAN during path MTU discovery.
 This feature may not work in all possible situations.
 
+@cindex MACExpire
+@item MACExpire = <@var{seconds}> (600)
+This option controls the amount of time MAC addresses are kept before they are removed.
+This only has effect when Mode is set to "switch".
+
+@cindex MaxTimeout
+@item MaxTimeout = <@var{seconds}> (900)
+This is the maximum delay before trying to reconnect to other tinc daemons.
+
 @cindex Mode
 @item Mode = <router|switch|hub> (router)
 This option selects the way packets are routed to other daemons.
@@ -996,27 +1019,15 @@ every packet will be broadcast to the other daemons
 while no routing table is managed.
 @end table
 
-@cindex KeyExpire
-@item KeyExpire = <@var{seconds}> (3600)
-This option controls the time the encryption keys used to encrypt the data
-are valid.  It is common practice to change keys at regular intervals to
-make it even harder for crackers, even though it is thought to be nearly
-impossible to crack a single key.
-
-@cindex MACExpire
-@item MACExpire = <@var{seconds}> (600)
-This option controls the amount of time MAC addresses are kept before they are removed.
-This only has effect when Mode is set to "switch".
-
 @cindex Name
 @item Name = <@var{name}> [required]
 This is a symbolic name for this connection.
-The name should consist only of alfanumeric and underscore characters (a-z, A-Z, 0-9 and _).
+The name must consist only of alphanumeric and underscore characters (a-z, A-Z, 0-9 and _).
 
 If Name starts with a $, then the contents of the environment variable that follows will be used.
 In that case, invalid characters will be converted to underscores.
 If Name is $HOST, but no such environment variable exist,
-the hostname will be read using the gethostnname() system call.
+the hostname will be read using the gethostname() system call.
 
 @cindex PingInterval
 @item PingInterval = <@var{seconds}> (60)
@@ -1038,7 +1049,7 @@ will be inherited by the UDP packets that are sent out.
 @item PrivateKey = <@var{key}> [obsolete]
 This is the RSA private key for tinc. However, for safety reasons it is
 advised to store private keys of any kind in separate files. This prevents
-accidental eavesdropping if you are editting the configuration file.
+accidental eavesdropping if you are editing the configuration file.
 
 @cindex PrivateKeyFile
 @item PrivateKeyFile = <@var{path}> (@file{@value{sysconfdir}/tinc/@var{netname}/rsa_key.priv})
@@ -1052,7 +1063,7 @@ When this option is used the priority of the tincd process will be adjusted.
 Increasing the priority may help to reduce latency and packet loss on the VPN.
 
 @cindex Proxy
-@item Proxy = socks4 | socks4 | http | exec @var{...} [experimental]
+@item Proxy = socks4 | socks5 | http | exec @var{...} [experimental]
 Use a proxy when making outgoing connections.
 The following proxy types are currently supported:
 
@@ -1063,7 +1074,7 @@ Connects to the proxy using the SOCKS version 4 protocol.
 Optionally, a @var{username} can be supplied which will be passed on to the proxy server.
 
 @cindex socks5
-@item socks4 <@var{address}> <@var{port}> [<@var{username}> <@var{password}>]
+@item socks5 <@var{address}> <@var{port}> [<@var{username}> <@var{password}>]
 Connect to the proxy using the SOCKS version 5 protocol.
 If a @var{username} and @var{password} are given, basic username/password authentication will be used,
 otherwise no authentication will be used.
@@ -1089,12 +1100,13 @@ reordering. Setting this to zero will disable replay tracking completely and
 pass all traffic, but leaves tinc vulnerable to replay-based attacks on your
 traffic.
 
-
 @cindex StrictSubnets
-@item StrictSubnets <yes|no> (no) [experimental]
+@item StrictSubnets = <yes|no> (no) [experimental]
 When this option is enabled tinc will only use Subnet statements which are
 present in the host config files in the local
 @file{@value{sysconfdir}/tinc/@var{netname}/hosts/} directory.
+Subnets learned via connections to other nodes and which are not
+present in the local host config files are ignored.
 
 @cindex TunnelServer
 @item TunnelServer = <yes|no> (no) [experimental]
@@ -1127,11 +1139,13 @@ This variable is only required if you want to connect to this host.  It
 must resolve to the external IP address where the host can be reached,
 not the one that is internal to the VPN.
 If no port is specified, the default Port is used.
+Multiple Address variables can be specified, in which case each address will be
+tried until a working connection has been established.
 
 @cindex Cipher
-@item Cipher = <@var{cipher}> (blowfish)
+@item Cipher = <@var{cipher}> (aes-256-cbc)
 The symmetric cipher algorithm used to encrypt UDP packets.
-Any cipher supported by OpenSSL is recognized.
+Any cipher supported by LibreSSL or OpenSSL is recognized.
 Furthermore, specifying "none" will turn off packet encryption.
 It is best to use only those ciphers which support CBC mode.
 
@@ -1148,9 +1162,9 @@ Possible values are 0 (off), 1 (fast zlib) and any integer up to 9 (best zlib),
 10 (fast lzo) and 11 (best lzo).
 
 @cindex Digest
-@item Digest = <@var{digest}> (sha1)
+@item Digest = <@var{digest}> (sha256)
 The digest algorithm used to authenticate UDP packets.
-Any digest supported by OpenSSL is recognized.
+Any digest supported by LibreSSL or OpenSSL is recognized.
 Furthermore, specifying "none" will turn off packet authentication.
 
 @cindex IndirectData
@@ -1202,7 +1216,7 @@ connection with that host.
 @cindex Subnet
 @item Subnet = <@var{address}[/@var{prefixlength}[#@var{weight}]]>
 The subnet which this tinc daemon will serve.
-Tinc tries to look up which other daemon it should send a packet to by searching the appropiate subnet.
+Tinc tries to look up which other daemon it should send a packet to by searching the appropriate subnet.
 If the packet matches a subnet,
 it will be sent to the daemon who has this subnet in his host configuration file.
 Multiple subnet lines can be specified for each daemon.
@@ -1221,7 +1235,7 @@ MAC addresses are notated like 0:1a:2b:3c:4d:5e.
 Prefixlength is the number of bits set to 1 in the netmask part; for
 example: netmask 255.255.255.0 would become /24, 255.255.252.0 becomes
 /22. This conforms to standard CIDR notation as described in
-@uref{http://www.ietf.org/rfc/rfc1519.txt, RFC1519}
+@uref{https://www.ietf.org/rfc/rfc1519.txt, RFC1519}
 
 @cindex Subnet weight
 A Subnet can be given a weight to indicate its priority over identical Subnets
@@ -1250,7 +1264,15 @@ UDP is possible or not.
 @cindex scripts
 Apart from reading the server and host configuration files,
 tinc can also run scripts at certain moments.
-Under Windows (not Cygwin), the scripts should have the extension .bat.
+Below is a list of filenames of scripts and a description of when they are run.
+A script is only run if it exists and if it is executable.
+
+Scripts are run synchronously;
+this means that tinc will temporarily stop processing packets until the called script finishes executing.
+This guarantees that scripts will execute in the exact same order as the events that trigger them.
+If you need to run commands asynchronously, you have to ensure yourself that they are being run in the background.
+
+Under Windows (not Cygwin), the scripts must have the extension .bat.
 
 @table @file
 @cindex tinc-up
@@ -1260,6 +1282,7 @@ If it is present it will be executed right after the tinc daemon has been
 started and has connected to the virtual network device.
 It should be used to set up the corresponding network interface,
 but can also be used to start other things.
+
 Under Windows you can use the Network Connections control panel instead of creating this script.
 
 @cindex tinc-down
@@ -1279,11 +1302,11 @@ This script is started when any host becomes reachable.
 This script is started when any host becomes unreachable.
 
 @item @value{sysconfdir}/tinc/@var{netname}/subnet-up
-This script is started when a Subnet becomes reachable.
+This script is started when a subnet becomes reachable.
 The Subnet and the node it belongs to are passed in environment variables.
 
 @item @value{sysconfdir}/tinc/@var{netname}/subnet-down
-This script is started when a Subnet becomes unreachable.
+This script is started when a subnet becomes unreachable.
 @end table
 
 @cindex environment variables
@@ -1354,7 +1377,7 @@ add `ConnectTo' values.
 
 @subsubheading Step 2.  Creating your host configuration file
 
-If you added a line containing `Name = yourname' in the main configuarion file,
+If you added a line containing `Name = yourname' in the main configuration file,
 you will need to create a host configuration file @file{@value{sysconfdir}/tinc/@var{netname}/hosts/yourname}.
 Adapt the following example to create a host configuration file:
 
@@ -1707,7 +1730,7 @@ Write log entries to a file instead of to the system logging facility.
 If @var{file} is omitted, the default is @file{@value{localstatedir}/log/tinc.@var{netname}.log}.
 
 @item --pidfile=@var{file}
-Write PID to @var{file} instead of @file{@value{localstatedir}/run/tinc.@var{netname}.pid}.
+Write PID to @var{file} instead of @file{@value{runstatedir}/tinc.@var{netname}.pid}.
 
 @item --bypass-security
 Disables encryption and authentication.
@@ -1720,10 +1743,14 @@ located (@file{@value{sysconfdir}/tinc/@var{netname}/} as determined by
 The chroot is performed after all the initialization is done, after
 writing pid files and opening network sockets.
 
-Note that this option alone does not do any good without -U/--user, below.
+This option is best used in combination with the -U/--user option described below.
 
-Note also that tinc can't run scripts anymore (such as tinc-down or host-up),
+You will need to ensure the chroot environment contains all the files necessary
-unless it's setup to be runnable inside chroot environment.
+for tinc to run correctly.
+Most importantly, for tinc to be able to resolve hostnames inside the chroot environment,
+you must copy @file{/etc/resolv.conf} into the chroot directory.
+If you want to be able to run scripts other than @file{tinc-up} in the chroot,
+you must ensure the appropriate shell is also installed in the chroot, along with all its dependencies.
 
 @item -U, --user=@var{user}
 Switch to the given @var{user} after initialization, at the same time as
@@ -1924,7 +1951,7 @@ Note that you will only see this message if you specified a debug
 level of 5 or higher!
 @item Chances are that a @samp{Subnet = ...} line in the host configuration file of this tinc daemon is wrong.
 Change it to a subnet that is accepted locally by another interface,
-or if that is not the case, try changing the prefix length into /32. 
+or if that is not the case, try changing the prefix length into /32.
 @end itemize
 
 @item Node foo (1.2.3.4) is not reachable
@@ -2008,7 +2035,7 @@ There are two possible types of virtual network devices:
 and `tap' style, which are Ethernet devices and handle complete Ethernet frames.
 
 So when tinc reads an Ethernet frame from the device, it determines its
-type. When tinc is in it's default routing mode, it can handle IPv4 and IPv6
+type. When tinc is in its default routing mode, it can handle IPv4 and IPv6
 packets. Depending on the Subnet lines, it will send the packets off to their destination IP address.
 In the `switch' and `hub' mode, tinc will use broadcasts and MAC address discovery
 to deduce the destination of the packets.
@@ -2039,7 +2066,7 @@ If the virtual network device is a `tun' device (a point-to-point tunnel),
 there is no problem for the kernel to accept a packet.
 However, if it is a `tap' device (this is the only available type on FreeBSD),
 the destination MAC address must match that of the virtual network interface.
-If tinc is in it's default routing mode, ARP does not work, so the correct destination MAC 
+If tinc is in its default routing mode, ARP does not work, so the correct destination MAC
 can not be known by the sending host.
 Tinc solves this by letting the receiving end detect the MAC address of its own virtual network interface
 and overwriting the destination MAC address of the received packet.
@@ -2048,7 +2075,7 @@ In switch or hub modes ARP does work so the sender already knows the correct des
 In those modes every interface should have a unique MAC address, so make sure they are not the same.
 Because switch and hub modes rely on MAC addresses to function correctly,
 these modes cannot be used on the following operating systems which don't have a `tap' style virtual network device:
-OpenBSD, NetBSD, Darwin and Solaris.
+NetBSD, Darwin and Solaris.
 
 
 @c ==================================================================
@@ -2163,7 +2190,7 @@ message
 ------------------------------------------------------------------
 REQ_KEY origin destination
            |       +--> name of the tinc daemon it wants the key from
-           +----------> name of the daemon that wants the key      
+           +----------> name of the daemon that wants the key
 
 ANS_KEY origin destination 4ae0b0a82d6e0078 91 64 4
            |       |       \______________/ |  |  +--> MAC length
@@ -2227,7 +2254,7 @@ eavesdroppers cannot get and cannot change any information at all from the
 packets they can intercept. The encryption algorithm and message authentication
 algorithm can be changed in the configuration. The length of the message
 authentication codes is also adjustable. The length of the key for the
-encryption algorithm is always the default length used by OpenSSL.
+encryption algorithm is always the default length used by LibreSSL/OpenSSL.
 
 @menu
 * Authentication protocol::
@@ -2298,13 +2325,13 @@ their identity. Further information is exchanged.
 
 client  ACK 655 123 0
              |   |  +-> options
-	         |   +----> estimated weight
+                 |   +----> estimated weight
-	         +--------> listening port of client
+                 +--------> listening port of client
 
 server  ACK 655 321 0
              |   |  +-> options
-	         |   +----> estimated weight
+                 |   +----> estimated weight
-	         +--------> listening port of server
+                 +--------> listening port of server
 --------------------------------------------------------------------------
 @end example
 
@@ -2386,7 +2413,7 @@ the MACLength configuration variable.
 In August 2000, we discovered the existence of a security hole in all versions
 of tinc up to and including 1.0pre2. This had to do with the way we exchanged
 keys. Since then, we have been working on a new authentication scheme to make
-tinc as secure as possible. The current version uses the OpenSSL library and
+tinc as secure as possible. The current version uses the LibreSSL or OpenSSL library and
 uses strong authentication with RSA keys.
 
 On the 29th of December 2001, Jerome Etienne posted a security analysis of tinc
@@ -2406,7 +2433,7 @@ We will address these issues in tinc 2.0.
 Cryptography is a hard thing to get right. We cannot make any
 guarantees. Time, review and feedback are the only things that can
 prove the security of any cryptographic product. If you wish to review
-tinc or give us feedback, you are stronly encouraged to do so.
+tinc or give us feedback, you are strongly encouraged to do so.
 
 
 @c ==================================================================
@@ -2416,6 +2443,7 @@ tinc or give us feedback, you are stronly encouraged to do so.
 @menu
 * Interface configuration::
 * Routes::
+* Automatically starting tinc::
 @end menu
 
 @c ==================================================================
@@ -2432,7 +2460,7 @@ netmask should be such that it encompasses the entire VPN.
 
 For IPv4 addresses:
 
-@multitable {Darwin (MacOS/X)} {ifconfig route add -bla network address netmask netmask prefixlength interface}
+@multitable {Darwin (Mac OS X)} {ifconfig route add -bla network address netmask netmask prefixlength interface}
 @item Linux
 @tab @code{ifconfig} @var{interface} @var{address} @code{netmask} @var{netmask}
 @item Linux iproute2
@@ -2445,7 +2473,7 @@ For IPv4 addresses:
 @tab @code{ifconfig} @var{interface} @var{address} @code{netmask} @var{netmask}
 @item Solaris
 @tab @code{ifconfig} @var{interface} @var{address} @code{netmask} @var{netmask}
-@item Darwin (MacOS/X)
+@item Darwin (Mac OS X)
 @tab @code{ifconfig} @var{interface} @var{address} @code{netmask} @var{netmask}
 @item Windows
 @tab @code{netsh interface ip set address} @var{interface} @code{static} @var{address} @var{netmask}
@@ -2453,7 +2481,7 @@ For IPv4 addresses:
 
 For IPv6 addresses:
 
-@multitable {Darwin (MacOS/X)} {ifconfig route add -bla network address netmask netmask prefixlength interface}
+@multitable {Darwin (Mac OS X)} {ifconfig route add -bla network address netmask netmask prefixlength interface}
 @item Linux
 @tab @code{ifconfig} @var{interface} @code{add} @var{address}@code{/}@var{prefixlength}
 @item FreeBSD
@@ -2466,25 +2494,18 @@ For IPv6 addresses:
 @tab @code{ifconfig} @var{interface} @code{inet6 plumb up}
 @item
 @tab @code{ifconfig} @var{interface} @code{inet6 addif} @var{address} @var{address}
-@item Darwin (MacOS/X)
+@item Darwin (Mac OS X)
 @tab @code{ifconfig} @var{interface} @code{inet6} @var{address} @code{prefixlen} @var{prefixlength}
 @item Windows
 @tab @code{netsh interface ipv6 add address} @var{interface} @code{static} @var{address}/@var{prefixlength}
 @end multitable
 
-On some platforms, when running tinc in switch mode, the VPN interface must be set to tap mode with an ifconfig command:
-
-@multitable {Darwin (MacOS/X)} {ifconfig route add -bla network address netmask netmask prefixlength interface}
-@item OpenBSD
-@tab @code{ifconfig} @var{interface} @code{link0}
-@end multitable
-
 On Linux, it is possible to create a persistent tun/tap interface which will
 continue to exist even if tinc quit, although this is normally not required.
 It can be useful to set up a tun/tap interface owned by a non-root user, so
 tinc can be started without needing any root privileges at all.
 
-@multitable {Darwin (MacOS/X)} {ifconfig route add -bla network address netmask netmask prefixlength interface}
+@multitable {Darwin (Mac OS X)} {ifconfig route add -bla network address netmask netmask prefixlength interface}
 @item Linux
 @tab @code{ip tuntap add dev} @var{interface} @code{mode} @var{tun|tap} @code{user} @var{username}
 @end multitable
@@ -2502,7 +2523,7 @@ support this.
 
 Adding routes to IPv4 subnets:
 
-@multitable {Darwin (MacOS/X)} {ifconfig route add -bla network address netmask netmask prefixlength interface}
+@multitable {Darwin (Mac OS X)} {ifconfig route add -bla network address netmask netmask prefixlength interface}
 @item Linux
 @tab @code{route add -net} @var{network_address} @code{netmask} @var{netmask} @var{interface}
 @item Linux iproute2
@@ -2515,15 +2536,15 @@ Adding routes to IPv4 subnets:
 @tab @code{route add} @var{network_address}@code{/}@var{prefixlength} @var{local_address}
 @item Solaris
 @tab @code{route add} @var{network_address}@code{/}@var{prefixlength} @var{local_address} @code{-interface}
-@item Darwin (MacOS/X)
+@item Darwin (Mac OS X)
-@tab @code{route add} @var{network_address}@code{/}@var{prefixlength} @var{local_address}
+@tab @code{route add} @var{network_address}@code{/}@var{prefixlength} @code{-interface} @var{interface}
 @item Windows
 @tab @code{netsh routing ip add persistentroute} @var{network_address} @var{netmask} @var{interface} @var{local_address}
 @end multitable
 
 Adding routes to IPv6 subnets:
 
-@multitable {Darwin (MacOS/X)} {ifconfig route add -bla network address netmask netmask prefixlength interface}
+@multitable {Darwin (Mac OS X)} {ifconfig route add -bla network address netmask netmask prefixlength interface}
 @item Linux
 @tab @code{route add -A inet6} @var{network_address}@code{/}@var{prefixlength} @var{interface}
 @item Linux iproute2
@@ -2536,12 +2557,72 @@ Adding routes to IPv6 subnets:
 @tab @code{route add -inet6} @var{network_address} @var{local_address} @code{-prefixlen} @var{prefixlength}
 @item Solaris
 @tab @code{route add -inet6} @var{network_address}@code{/}@var{prefixlength} @var{local_address} @code{-interface}
-@item Darwin (MacOS/X)
+@item Darwin (Mac OS X)
-@tab ?
+@tab @code{route add -inet6} @var{network_address}@code{/}@var{prefixlength} @code{-interface} @var{interface}
 @item Windows
 @tab @code{netsh interface ipv6 add route} @var{network address}/@var{prefixlength} @var{interface}
 @end multitable
 
+@c ==================================================================
+@node    Automatically starting tinc
+@section Automatically starting tinc
+
+@menu
+* Linux::
+* Windows::
+* Other platforms::
+@end menu
+
+@c ==================================================================
+@node       Linux
+@subsection Linux
+
+@cindex systemd
+There are many Linux distributions, and historically, many of them had their
+own way of starting programs at boot time. Today, a number of major Linux
+distributions have chosen to use systemd as their init system. Tinc ships with
+systemd service files that allow you to start and stop tinc using systemd.
+There are two service files: @code{tinc.service} is used to globally enable or
+disable all tinc daemons managed by systemd, and
+@code{tinc@@@var{netname}.service} is used to enable or disable specific tinc
+daemons. So if one has created a tinc network with netname @code{foo}, then
+you have to run the following two commands to ensure it is started at boot
+time:
+
+@example
+systemctl enable tinc
+systemctl enable tinc@@foo
+@end example
+
+To start the tinc daemon immediately if it wasn't already running, use the
+following command:
+
+@example
+systemctl start tinc@@foo
+@end example
+
+You can also use @samp{systemctl start tinc}, this will start all tinc daemons
+that are enabled. You can stop and disable tinc networks in the same way.
+
+If your system is not using systemd, then you have to look up your
+distribution's way of starting tinc at boot time.
+
+@c ==================================================================
+@node       Windows
+@subsection Windows
+
+On Windows, if tinc is started without the @code{-D} or @code{--no-detach}
+option, it will automatically register itself as a service that is started at
+boot time. When tinc is stopped using the @code{-k} or @code{--kill}, it will
+also automatically unregister itself. Once tinc is registered as a service, it
+is also possible to stop and start tinc using the Windows Services Manager.
+
+@c ==================================================================
+@node       Other platforms
+@subsection Other platforms
+
+On platforms other than the ones mentioned in the earlier sections, you have to
+look up your platform's way of starting programs at boot time.
 
 @c ==================================================================
 @node    About us
@@ -2559,14 +2640,14 @@ Adding routes to IPv6 subnets:
 @section Contact information
 
 @cindex website
-Tinc's website is at @url{http://www.tinc-vpn.org/},
+Tinc's website is at @url{https://www.tinc-vpn.org/},
 this server is located in the Netherlands.
 
 @cindex IRC
 We have an IRC channel on the FreeNode and OFTC IRC networks. Connect to
-@uref{http://www.freenode.net/, irc.freenode.net}
+@uref{https://freenode.net/, irc.freenode.net}
 or
-@uref{http://www.oftc.net/, irc.oftc.net}
+@uref{https://www.oftc.net/, irc.oftc.net}
 and join channel #tinc.
 
 

doc/tincd.8.in

@@ -1,4 +1,4 @@
-.Dd 2011-01-02
+.Dd 2014-05-11
 .Dt TINCD 8
 .\" Manual page created by:
 .\" Ivo Timmermans
@@ -109,7 +109,7 @@ is omitted, the default is
 Write PID to
 .Ar FILE
 instead of
-.Pa @localstatedir@/run/tinc. Ns Ar NETNAME Ns Pa .pid.
+.Pa @runstatedir@/tinc. Ns Ar NETNAME Ns Pa .pid.
 Under Windows this option will be ignored.
 .It Fl -bypass-security
 Disables encryption and authentication of the meta protocol.
@@ -190,7 +190,7 @@ This will log all network traffic over the virtual private network.
 Directory containing the configuration files tinc uses.
 For more information, see
 .Xr tinc.conf 5 .
-.It Pa @localstatedir@/run/tinc. Ns Ar NETNAME Ns Pa .pid
+.It Pa @runstatedir@/tinc. Ns Ar NETNAME Ns Pa .pid
 The PID of the currently running
 .Nm
 is stored in this file.
@@ -207,7 +207,7 @@ If you find any bugs, report them to tinc@tinc-vpn.org.
 A lot, especially security auditing.
 .Sh SEE ALSO
 .Xr tinc.conf 5 ,
-.Pa http://www.tinc-vpn.org/ ,
+.Pa https://www.tinc-vpn.org/ ,
 .Pa http://www.cabal.org/ .
 .Pp
 The full documentation for tinc is maintained as a Texinfo manual.

doc/tincinclude.texi

@@ -0,0 +1,5 @@
+@set VERSION 1.0.36
+@set PACKAGE tinc
+@set sysconfdir /etc
+@set localstatedir /var
+@set runstatedir /run

doc/tincinclude.texi.in

@@ -2,3 +2,4 @@
 @set PACKAGE @PACKAGE@
 @set sysconfdir @sysconfdir@
 @set localstatedir @localstatedir@
+@set runstatedir @runstatedir@

install-sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile
 
-scriptversion=2011-11-20.07; # UTC
+scriptversion=2018-03-11.20; # UTC
 
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@@ -41,19 +41,15 @@ scriptversion=2011-11-20.07; # UTC
 # This script is compatible with the BSD install script, but was written
 # from scratch.
 
+tab='	'
 nl='
 '
-IFS=" ""	$nl"
+IFS=" $tab$nl"
 
-# set DOITPROG to echo to test this script
+# Set DOITPROG to "echo" to test this script.
 
-# Don't use :- since 4.3BSD and earlier shells don't like it.
 doit=${DOITPROG-}
-if test -z "$doit"; then
+doit_exec=${doit:-exec}
-  doit_exec=exec
-else
-  doit_exec=$doit
-fi
 
 # Put in absolute file names if you don't have them in your path;
 # or use environment vars.
@@ -68,17 +64,6 @@ mvprog=${MVPROG-mv}
 rmprog=${RMPROG-rm}
 stripprog=${STRIPPROG-strip}
 
-posix_glob='?'
-initialize_posix_glob='
-  test "$posix_glob" != "?" || {
-    if (set -f) 2>/dev/null; then
-      posix_glob=
-    else
-      posix_glob=:
-    fi
-  }
-'
-
 posix_mkdir=
 
 # Desired mode of installed file.
@@ -97,7 +82,7 @@ dir_arg=
 dst_arg=
 
 copy_on_change=false
-no_target_directory=
+is_target_a_directory=possibly
 
 usage="\
 Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
@@ -137,46 +122,57 @@ while test $# -ne 0; do
     -d) dir_arg=true;;
 
     -g) chgrpcmd="$chgrpprog $2"
-	shift;;
+        shift;;
 
     --help) echo "$usage"; exit $?;;
 
     -m) mode=$2
-	case $mode in
+        case $mode in
-	  *' '* | *'	'* | *'
+          *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
-'*	  | *'*'* | *'?'* | *'['*)
+            echo "$0: invalid mode: $mode" >&2
-	    echo "$0: invalid mode: $mode" >&2
+            exit 1;;
-	    exit 1;;
+        esac
-	esac
+        shift;;
-	shift;;
 
     -o) chowncmd="$chownprog $2"
-	shift;;
+        shift;;
 
     -s) stripcmd=$stripprog;;
 
-    -t) dst_arg=$2
+    -t)
-	# Protect names problematic for 'test' and other utilities.
+        is_target_a_directory=always
-	case $dst_arg in
+        dst_arg=$2
-	  -* | [=\(\)!]) dst_arg=./$dst_arg;;
+        # Protect names problematic for 'test' and other utilities.
-	esac
+        case $dst_arg in
-	shift;;
+          -* | [=\(\)!]) dst_arg=./$dst_arg;;
+        esac
+        shift;;
 
-    -T) no_target_directory=true;;
+    -T) is_target_a_directory=never;;
 
     --version) echo "$0 $scriptversion"; exit $?;;
 
-    --)	shift
+    --) shift
-	break;;
+        break;;
 
-    -*)	echo "$0: invalid option: $1" >&2
+    -*) echo "$0: invalid option: $1" >&2
-	exit 1;;
+        exit 1;;
 
     *)  break;;
   esac
   shift
 done
 
+# We allow the use of options -d and -T together, by making -d
+# take the precedence; this is for compatibility with GNU install.
+
+if test -n "$dir_arg"; then
+  if test -n "$dst_arg"; then
+    echo "$0: target directory not allowed when installing a directory." >&2
+    exit 1
+  fi
+fi
+
 if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
   # When -d is used, all remaining arguments are directories to create.
   # When -t is used, the destination is already specified.
@@ -207,6 +203,15 @@ if test $# -eq 0; then
   exit 0
 fi
 
+if test -z "$dir_arg"; then
+  if test $# -gt 1 || test "$is_target_a_directory" = always; then
+    if test ! -d "$dst_arg"; then
+      echo "$0: $dst_arg: Is not a directory." >&2
+      exit 1
+    fi
+  fi
+fi
+
 if test -z "$dir_arg"; then
   do_exit='(exit $ret); exit $ret'
   trap "ret=129; $do_exit" 1
@@ -223,16 +228,16 @@ if test -z "$dir_arg"; then
 
     *[0-7])
       if test -z "$stripcmd"; then
-	u_plus_rw=
+        u_plus_rw=
       else
-	u_plus_rw='% 200'
+        u_plus_rw='% 200'
       fi
       cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
     *)
       if test -z "$stripcmd"; then
-	u_plus_rw=
+        u_plus_rw=
       else
-	u_plus_rw=,u+rw
+        u_plus_rw=,u+rw
       fi
       cp_umask=$mode$u_plus_rw;;
   esac
@@ -266,122 +271,113 @@ do
     fi
     dst=$dst_arg
 
-    # If destination is a directory, append the input filename; won't work
+    # If destination is a directory, append the input filename.
-    # if double slashes aren't ignored.
     if test -d "$dst"; then
-      if test -n "$no_target_directory"; then
+      if test "$is_target_a_directory" = never; then
-	echo "$0: $dst_arg: Is a directory" >&2
+        echo "$0: $dst_arg: Is a directory" >&2
-	exit 1
+        exit 1
       fi
       dstdir=$dst
-      dst=$dstdir/`basename "$src"`
+      dstbase=`basename "$src"`
+      case $dst in
+	*/) dst=$dst$dstbase;;
+	*)  dst=$dst/$dstbase;;
+      esac
       dstdir_status=0
     else
-      # Prefer dirname, but fall back on a substitute if dirname fails.
+      dstdir=`dirname "$dst"`
-      dstdir=`
-	(dirname "$dst") 2>/dev/null ||
-	expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	     X"$dst" : 'X\(//\)[^/]' \| \
-	     X"$dst" : 'X\(//\)$' \| \
-	     X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
-	echo X"$dst" |
-	    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-		   s//\1/
-		   q
-		 }
-		 /^X\(\/\/\)[^/].*/{
-		   s//\1/
-		   q
-		 }
-		 /^X\(\/\/\)$/{
-		   s//\1/
-		   q
-		 }
-		 /^X\(\/\).*/{
-		   s//\1/
-		   q
-		 }
-		 s/.*/./; q'
-      `
-
       test -d "$dstdir"
       dstdir_status=$?
     fi
   fi
 
+  case $dstdir in
+    */) dstdirslash=$dstdir;;
+    *)  dstdirslash=$dstdir/;;
+  esac
+
   obsolete_mkdir_used=false
 
   if test $dstdir_status != 0; then
     case $posix_mkdir in
       '')
-	# Create intermediate dirs using mode 755 as modified by the umask.
+        # Create intermediate dirs using mode 755 as modified by the umask.
-	# This is like FreeBSD 'install' as of 1997-10-28.
+        # This is like FreeBSD 'install' as of 1997-10-28.
-	umask=`umask`
+        umask=`umask`
-	case $stripcmd.$umask in
+        case $stripcmd.$umask in
-	  # Optimize common cases.
+          # Optimize common cases.
-	  *[2367][2367]) mkdir_umask=$umask;;
+          *[2367][2367]) mkdir_umask=$umask;;
-	  .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
+          .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
 
-	  *[0-7])
+          *[0-7])
-	    mkdir_umask=`expr $umask + 22 \
+            mkdir_umask=`expr $umask + 22 \
-	      - $umask % 100 % 40 + $umask % 20 \
+              - $umask % 100 % 40 + $umask % 20 \
-	      - $umask % 10 % 4 + $umask % 2
+              - $umask % 10 % 4 + $umask % 2
-	    `;;
+            `;;
-	  *) mkdir_umask=$umask,go-w;;
+          *) mkdir_umask=$umask,go-w;;
-	esac
+        esac
 
-	# With -d, create the new directory with the user-specified mode.
+        # With -d, create the new directory with the user-specified mode.
-	# Otherwise, rely on $mkdir_umask.
+        # Otherwise, rely on $mkdir_umask.
-	if test -n "$dir_arg"; then
+        if test -n "$dir_arg"; then
-	  mkdir_mode=-m$mode
+          mkdir_mode=-m$mode
-	else
+        else
-	  mkdir_mode=
+          mkdir_mode=
-	fi
+        fi
 
-	posix_mkdir=false
+        posix_mkdir=false
-	case $umask in
+        case $umask in
-	  *[123567][0-7][0-7])
+          *[123567][0-7][0-7])
-	    # POSIX mkdir -p sets u+wx bits regardless of umask, which
+            # POSIX mkdir -p sets u+wx bits regardless of umask, which
-	    # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+            # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
-	    ;;
+            ;;
-	  *)
+          *)
-	    tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+            # Note that $RANDOM variable is not portable (e.g. dash);  Use it
-	    trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
+            # here however when possible just to lower collision chance.
+            tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
 
-	    if (umask $mkdir_umask &&
+            trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
-		exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
+
-	    then
+            # Because "mkdir -p" follows existing symlinks and we likely work
-	      if test -z "$dir_arg" || {
+            # directly in world-writeable /tmp, make sure that the '$tmpdir'
-		   # Check for POSIX incompatibilities with -m.
+            # directory is successfully created first before we actually test
-		   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+            # 'mkdir -p' feature.
-		   # other-writable bit of parent directory when it shouldn't.
+            if (umask $mkdir_umask &&
-		   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+                $mkdirprog $mkdir_mode "$tmpdir" &&
-		   ls_ld_tmpdir=`ls -ld "$tmpdir"`
+                exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
-		   case $ls_ld_tmpdir in
+            then
-		     d????-?r-*) different_mode=700;;
+              if test -z "$dir_arg" || {
-		     d????-?--*) different_mode=755;;
+                   # Check for POSIX incompatibilities with -m.
-		     *) false;;
+                   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
-		   esac &&
+                   # other-writable bit of parent directory when it shouldn't.
-		   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
+                   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
-		     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
+                   test_tmpdir="$tmpdir/a"
-		     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+                   ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
-		   }
+                   case $ls_ld_tmpdir in
-		 }
+                     d????-?r-*) different_mode=700;;
-	      then posix_mkdir=:
+                     d????-?--*) different_mode=755;;
-	      fi
+                     *) false;;
-	      rmdir "$tmpdir/d" "$tmpdir"
+                   esac &&
-	    else
+                   $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
-	      # Remove any dirs left behind by ancient mkdir implementations.
+                     ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
-	      rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
+                     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
-	    fi
+                   }
-	    trap '' 0;;
+                 }
-	esac;;
+              then posix_mkdir=:
+              fi
+              rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
+            else
+              # Remove any dirs left behind by ancient mkdir implementations.
+              rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
+            fi
+            trap '' 0;;
+        esac;;
     esac
 
     if
       $posix_mkdir && (
-	umask $mkdir_umask &&
+        umask $mkdir_umask &&
-	$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
       )
     then :
     else
@@ -391,53 +387,51 @@ do
       # directory the slow way, step by step, checking for races as we go.
 
       case $dstdir in
-	/*) prefix='/';;
+        /*) prefix='/';;
-	[-=\(\)!]*) prefix='./';;
+        [-=\(\)!]*) prefix='./';;
-	*)  prefix='';;
+        *)  prefix='';;
       esac
 
-      eval "$initialize_posix_glob"
-
       oIFS=$IFS
       IFS=/
-      $posix_glob set -f
+      set -f
       set fnord $dstdir
       shift
-      $posix_glob set +f
+      set +f
       IFS=$oIFS
 
       prefixes=
 
       for d
       do
-	test X"$d" = X && continue
+        test X"$d" = X && continue
 
-	prefix=$prefix$d
+        prefix=$prefix$d
-	if test -d "$prefix"; then
+        if test -d "$prefix"; then
-	  prefixes=
+          prefixes=
-	else
+        else
-	  if $posix_mkdir; then
+          if $posix_mkdir; then
-	    (umask=$mkdir_umask &&
+            (umask=$mkdir_umask &&
-	     $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+             $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
-	    # Don't fail if two instances are running concurrently.
+            # Don't fail if two instances are running concurrently.
-	    test -d "$prefix" || exit 1
+            test -d "$prefix" || exit 1
-	  else
+          else
-	    case $prefix in
+            case $prefix in
-	      *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+              *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
-	      *) qprefix=$prefix;;
+              *) qprefix=$prefix;;
-	    esac
+            esac
-	    prefixes="$prefixes '$qprefix'"
+            prefixes="$prefixes '$qprefix'"
-	  fi
+          fi
-	fi
+        fi
-	prefix=$prefix/
+        prefix=$prefix/
       done
 
       if test -n "$prefixes"; then
-	# Don't fail if two instances are running concurrently.
+        # Don't fail if two instances are running concurrently.
-	(umask $mkdir_umask &&
+        (umask $mkdir_umask &&
-	 eval "\$doit_exec \$mkdirprog $prefixes") ||
+         eval "\$doit_exec \$mkdirprog $prefixes") ||
-	  test -d "$dstdir" || exit 1
+          test -d "$dstdir" || exit 1
-	obsolete_mkdir_used=true
+        obsolete_mkdir_used=true
       fi
     fi
   fi
@@ -450,14 +444,25 @@ do
   else
 
     # Make a couple of temp file names in the proper directory.
-    dsttmp=$dstdir/_inst.$$_
+    dsttmp=${dstdirslash}_inst.$$_
-    rmtmp=$dstdir/_rm.$$_
+    rmtmp=${dstdirslash}_rm.$$_
 
     # Trap to clean up those temp files at exit.
     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
 
     # Copy the file name to the temp name.
-    (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
+    (umask $cp_umask &&
+     { test -z "$stripcmd" || {
+	 # Create $dsttmp read-write so that cp doesn't create it read-only,
+	 # which would cause strip to fail.
+	 if test -z "$doit"; then
+	   : >"$dsttmp" # No need to fork-exec 'touch'.
+	 else
+	   $doit touch "$dsttmp"
+	 fi
+       }
+     } &&
+     $doit_exec $cpprog "$src" "$dsttmp") &&
 
     # and set any options; do chmod last to preserve setuid bits.
     #
@@ -472,15 +477,12 @@ do
 
     # If -C, don't bother to copy if it wouldn't change the file.
     if $copy_on_change &&
-       old=`LC_ALL=C ls -dlL "$dst"	2>/dev/null` &&
+       old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
-       new=`LC_ALL=C ls -dlL "$dsttmp"	2>/dev/null` &&
+       new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
-
+       set -f &&
-       eval "$initialize_posix_glob" &&
-       $posix_glob set -f &&
        set X $old && old=:$2:$4:$5:$6 &&
        set X $new && new=:$2:$4:$5:$6 &&
-       $posix_glob set +f &&
+       set +f &&
-
        test "$old" = "$new" &&
        $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
     then
@@ -493,24 +495,24 @@ do
       # to itself, or perhaps because mv is so ancient that it does not
       # support -f.
       {
-	# Now remove or move aside any old file at destination location.
+        # Now remove or move aside any old file at destination location.
-	# We try this two ways since rm can't unlink itself on some
+        # We try this two ways since rm can't unlink itself on some
-	# systems and the destination file might be busy for other
+        # systems and the destination file might be busy for other
-	# reasons.  In this case, the final cleanup might fail but the new
+        # reasons.  In this case, the final cleanup might fail but the new
-	# file should still install successfully.
+        # file should still install successfully.
-	{
+        {
-	  test ! -f "$dst" ||
+          test ! -f "$dst" ||
-	  $doit $rmcmd -f "$dst" 2>/dev/null ||
+          $doit $rmcmd -f "$dst" 2>/dev/null ||
-	  { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+          { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
-	    { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+            { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
-	  } ||
+          } ||
-	  { echo "$0: cannot unlink or rename $dst" >&2
+          { echo "$0: cannot unlink or rename $dst" >&2
-	    (exit 1); exit 1
+            (exit 1); exit 1
-	  }
+          }
-	} &&
+        } &&
 
-	# Now rename the file to the real destination.
+        # Now rename the file to the real destination.
-	$doit $mvcmd "$dsttmp" "$dst"
+        $doit $mvcmd "$dsttmp" "$dst"
       }
     fi || exit 1
 
@@ -519,9 +521,9 @@ do
 done
 
 # Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
+# eval: (add-hook 'before-save-hook 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:

lib/Makefile.am

@@ -1,14 +0,0 @@
-## Process this file with automake to produce Makefile.in
-
-noinst_LIBRARIES = libvpn.a
-
-INCLUDES = @INCLUDES@ -I. -I$(top_builddir)
-
-libvpn_a_SOURCES = xmalloc.c pidfile.c utils.c getopt.c getopt1.c list.c avl_tree.c dropin.c fake-getaddrinfo.c fake-getnameinfo.c
-
-libvpn_a_LIBADD = @LIBOBJS@ @ALLOCA@
-libvpn_a_DEPENDENCIES = $(libvpn_a_LIBADD)
-
-noinst_HEADERS = xalloc.h pidfile.h utils.h getopt.h list.h avl_tree.h dropin.h fake-getaddrinfo.h fake-getnameinfo.h fake-gai-errnos.h ipv6.h ipv4.h ethernet.h
-
-EXTRA_DIST = 

lib/Makefile.in

@@ -1,552 +0,0 @@
-# Makefile.in generated by automake 1.13.3 from Makefile.am.
-# @configure_input@
-
-# Copyright (C) 1994-2013 Free Software Foundation, Inc.
-
-# This Makefile.in is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-@SET_MAKE@
-
-
-VPATH = @srcdir@
-am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
-am__make_running_with_option = \
-  case $${target_option-} in \
-      ?) ;; \
-      *) echo "am__make_running_with_option: internal error: invalid" \
-              "target option '$${target_option-}' specified" >&2; \
-         exit 1;; \
-  esac; \
-  has_opt=no; \
-  sane_makeflags=$$MAKEFLAGS; \
-  if $(am__is_gnu_make); then \
-    sane_makeflags=$$MFLAGS; \
-  else \
-    case $$MAKEFLAGS in \
-      *\\[\ \	]*) \
-        bs=\\; \
-        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
-          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
-    esac; \
-  fi; \
-  skip_next=no; \
-  strip_trailopt () \
-  { \
-    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
-  }; \
-  for flg in $$sane_makeflags; do \
-    test $$skip_next = yes && { skip_next=no; continue; }; \
-    case $$flg in \
-      *=*|--*) continue;; \
-        -*I) strip_trailopt 'I'; skip_next=yes;; \
-      -*I?*) strip_trailopt 'I';; \
-        -*O) strip_trailopt 'O'; skip_next=yes;; \
-      -*O?*) strip_trailopt 'O';; \
-        -*l) strip_trailopt 'l'; skip_next=yes;; \
-      -*l?*) strip_trailopt 'l';; \
-      -[dEDm]) skip_next=yes;; \
-      -[JT]) skip_next=yes;; \
-    esac; \
-    case $$flg in \
-      *$$target_option*) has_opt=yes; break;; \
-    esac; \
-  done; \
-  test $$has_opt = yes
-am__make_dryrun = (target_option=n; $(am__make_running_with_option))
-am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
-pkgdatadir = $(datadir)/@PACKAGE@
-pkgincludedir = $(includedir)/@PACKAGE@
-pkglibdir = $(libdir)/@PACKAGE@
-pkglibexecdir = $(libexecdir)/@PACKAGE@
-am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
-install_sh_DATA = $(install_sh) -c -m 644
-install_sh_PROGRAM = $(install_sh) -c
-install_sh_SCRIPT = $(install_sh) -c
-INSTALL_HEADER = $(INSTALL_DATA)
-transform = $(program_transform_name)
-NORMAL_INSTALL = :
-PRE_INSTALL = :
-POST_INSTALL = :
-NORMAL_UNINSTALL = :
-PRE_UNINSTALL = :
-POST_UNINSTALL = :
-build_triplet = @build@
-host_triplet = @host@
-subdir = lib
-DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am realloc.c \
-	memcmp.c malloc.c alloca.c $(top_srcdir)/depcomp \
-	$(noinst_HEADERS)
-ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/m4/attribute.m4 \
-	$(top_srcdir)/m4/lzo.m4 $(top_srcdir)/m4/openssl.m4 \
-	$(top_srcdir)/m4/zlib.m4 $(top_srcdir)/configure.in
-am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
-	$(ACLOCAL_M4)
-mkinstalldirs = $(install_sh) -d
-CONFIG_HEADER = $(top_builddir)/config.h
-CONFIG_CLEAN_FILES =
-CONFIG_CLEAN_VPATH_FILES =
-LIBRARIES = $(noinst_LIBRARIES)
-AR = ar
-ARFLAGS = cru
-AM_V_AR = $(am__v_AR_@AM_V@)
-am__v_AR_ = $(am__v_AR_@AM_DEFAULT_V@)
-am__v_AR_0 = @echo "  AR      " $@;
-am__v_AR_1 = 
-libvpn_a_AR = $(AR) $(ARFLAGS)
-am_libvpn_a_OBJECTS = xmalloc.$(OBJEXT) pidfile.$(OBJEXT) \
-	utils.$(OBJEXT) getopt.$(OBJEXT) getopt1.$(OBJEXT) \
-	list.$(OBJEXT) avl_tree.$(OBJEXT) dropin.$(OBJEXT) \
-	fake-getaddrinfo.$(OBJEXT) fake-getnameinfo.$(OBJEXT)
-libvpn_a_OBJECTS = $(am_libvpn_a_OBJECTS)
-AM_V_P = $(am__v_P_@AM_V@)
-am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
-am__v_P_0 = false
-am__v_P_1 = :
-AM_V_GEN = $(am__v_GEN_@AM_V@)
-am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
-am__v_GEN_0 = @echo "  GEN     " $@;
-am__v_GEN_1 = 
-AM_V_at = $(am__v_at_@AM_V@)
-am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
-am__v_at_0 = @
-am__v_at_1 = 
-DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
-depcomp = $(SHELL) $(top_srcdir)/depcomp
-am__depfiles_maybe = depfiles
-am__mv = mv -f
-COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
-	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
-AM_V_CC = $(am__v_CC_@AM_V@)
-am__v_CC_ = $(am__v_CC_@AM_DEFAULT_V@)
-am__v_CC_0 = @echo "  CC      " $@;
-am__v_CC_1 = 
-CCLD = $(CC)
-LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
-AM_V_CCLD = $(am__v_CCLD_@AM_V@)
-am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@)
-am__v_CCLD_0 = @echo "  CCLD    " $@;
-am__v_CCLD_1 = 
-SOURCES = $(libvpn_a_SOURCES)
-DIST_SOURCES = $(libvpn_a_SOURCES)
-am__can_run_installinfo = \
-  case $$AM_UPDATE_INFO_DIR in \
-    n|no|NO) false;; \
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@@ -1,494 +0,0 @@
-/* alloca.c -- allocate automatically reclaimed memory
-   (Mostly) portable public-domain implementation -- D A Gwyn
-
-   This implementation of the PWB library alloca function,
-   which is used to allocate space off the run-time stack so
-   that it is automatically reclaimed upon procedure exit,
-   was inspired by discussions with J. Q. Johnson of Cornell.
-   J.Otto Tennant <jot@cray.com> contributed the Cray support.
-
-   There are some preprocessor constants that can
-   be defined when compiling for your specific system, for
-   improved efficiency; however, the defaults should be okay.
-
-   The general concept of this implementation is to keep
-   track of all alloca-allocated blocks, and reclaim any
-   that are found to be deeper in the stack than the current
-   invocation.  This heuristic does not reclaim storage as
-   soon as it becomes invalid, but it will do so eventually.
-
-   As a special case, alloca(0) reclaims storage without
-   allocating any.  It is a good idea to use alloca(0) in
-   your main control loop, etc. to force garbage collection.  */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#ifdef emacs
-# include "blockinput.h"
-#endif
-
-/* If compiling with GCC 2, this file's not needed.  */
-#if !defined (__GNUC__) || __GNUC__ < 2
-
-/* If someone has defined alloca as a macro,
-   there must be some other way alloca is supposed to work.  */
-# ifndef alloca
-
-#  ifdef emacs
-#   ifdef static
-/* actually, only want this if static is defined as ""
-   -- this is for usg, in which emacs must undefine static
-   in order to make unexec workable
-   */
-#    ifndef STACK_DIRECTION
-you
-lose
--- must know STACK_DIRECTION at compile-time
-#    endif /* STACK_DIRECTION undefined */
-#   endif /* static */
-#  endif /* emacs */
-
-/* If your stack is a linked list of frames, you have to
-   provide an "address metric" ADDRESS_FUNCTION macro.  */
-
-#  if defined (CRAY) && defined (CRAY_STACKSEG_END)
-long i00afunc ();
-#   define ADDRESS_FUNCTION(arg) (char *) i00afunc (&(arg))
-#  else
-#   define ADDRESS_FUNCTION(arg) &(arg)
-#  endif
-
-#  if __STDC__
-typedef void *pointer;
-#  else
-typedef char *pointer;
-#  endif
-
-#  ifndef NULL
-#   define NULL 0
-#  endif
-
-/* Different portions of Emacs need to call different versions of
-   malloc.  The Emacs executable needs alloca to call xmalloc, because
-   ordinary malloc isn't protected from input signals.  On the other
-   hand, the utilities in lib-src need alloca to call malloc; some of
-   them are very simple, and don't have an xmalloc routine.
-
-   Non-Emacs programs expect this to call xmalloc.
-
-   Callers below should use malloc.  */
-
-#  ifndef emacs
-#   define malloc xmalloc
-#  endif
-extern pointer malloc ();
-
-/* Define STACK_DIRECTION if you know the direction of stack
-   growth for your system; otherwise it will be automatically
-   deduced at run-time.
-
-   STACK_DIRECTION > 0 => grows toward higher addresses
-   STACK_DIRECTION < 0 => grows toward lower addresses
-   STACK_DIRECTION = 0 => direction of growth unknown  */
-
-#  ifndef STACK_DIRECTION
-#   define STACK_DIRECTION	0	/* Direction unknown.  */
-#  endif
-
-#  if STACK_DIRECTION != 0
-
-#   define STACK_DIR	STACK_DIRECTION	/* Known at compile-time.  */
-
-#  else /* STACK_DIRECTION == 0; need run-time code.  */
-
-static int stack_dir;		/* 1 or -1 once known.  */
-#   define STACK_DIR	stack_dir
-
-static void
-find_stack_direction ()
-{
-  static char *addr = NULL;	/* Address of first `dummy', once known.  */
-  auto char dummy;		/* To get stack address.  */
-
-  if (addr == NULL)
-    {				/* Initial entry.  */
-      addr = ADDRESS_FUNCTION (dummy);
-
-      find_stack_direction ();	/* Recurse once.  */
-    }
-  else
-    {
-      /* Second entry.  */
-      if (ADDRESS_FUNCTION (dummy) > addr)
-	stack_dir = 1;		/* Stack grew upward.  */
-      else
-	stack_dir = -1;		/* Stack grew downward.  */
-    }
-}
-
-#  endif /* STACK_DIRECTION == 0 */
-
-/* An "alloca header" is used to:
-   (a) chain together all alloca'ed blocks;
-   (b) keep track of stack depth.
-
-   It is very important that sizeof(header) agree with malloc
-   alignment chunk size.  The following default should work okay.  */
-
-#  ifndef	ALIGN_SIZE
-#   define ALIGN_SIZE	sizeof(double)
-#  endif
-
-typedef union hdr
-{
-  char align[ALIGN_SIZE];	/* To force sizeof(header).  */
-  struct
-    {
-      union hdr *next;		/* For chaining headers.  */
-      char *deep;		/* For stack depth measure.  */
-    } h;
-} header;
-
-static header *last_alloca_header = NULL;	/* -> last alloca header.  */
-
-/* Return a pointer to at least SIZE bytes of storage,
-   which will be automatically reclaimed upon exit from
-   the procedure that called alloca.  Originally, this space
-   was supposed to be taken from the current stack frame of the
-   caller, but that method cannot be made to work for some
-   implementations of C, for example under Gould's UTX/32.  */
-
-pointer
-alloca (size)
-     unsigned size;
-{
-  auto char probe;		/* Probes stack depth: */
-  register char *depth = ADDRESS_FUNCTION (probe);
-
-#  if STACK_DIRECTION == 0
-  if (STACK_DIR == 0)		/* Unknown growth direction.  */
-    find_stack_direction ();
-#  endif
-
-  /* Reclaim garbage, defined as all alloca'd storage that
-     was allocated from deeper in the stack than currently.  */
-
-  {
-    register header *hp;	/* Traverses linked list.  */
-
-#  ifdef emacs
-    BLOCK_INPUT;
-#  endif
-
-    for (hp = last_alloca_header; hp != NULL;)
-      if ((STACK_DIR > 0 && hp->h.deep > depth)
-	  || (STACK_DIR < 0 && hp->h.deep < depth))
-	{
-	  register header *np = hp->h.next;
-
-	  free ((pointer) hp);	/* Collect garbage.  */
-
-	  hp = np;		/* -> next header.  */
-	}
-      else
-	break;			/* Rest are not deeper.  */
-
-    last_alloca_header = hp;	/* -> last valid storage.  */
-
-#  ifdef emacs
-    UNBLOCK_INPUT;
-#  endif
-  }
-
-  if (size == 0)
-    return NULL;		/* No allocation required.  */
-
-  /* Allocate combined header + user data storage.  */
-
-  {
-    register pointer new = malloc (sizeof (header) + size);
-    /* Address of header.  */
-
-    ((header *) new)->h.next = last_alloca_header;
-    ((header *) new)->h.deep = depth;
-
-    last_alloca_header = (header *) new;
-
-    /* User storage begins just after header.  */
-
-    return (pointer) ((char *) new + sizeof (header));
-  }
-}
-
-#  if defined (CRAY) && defined (CRAY_STACKSEG_END)
-
-#   ifdef DEBUG_I00AFUNC
-#    include <stdio.h>
-#   endif
-
-#   ifndef CRAY_STACK
-#    define CRAY_STACK
-#    ifndef CRAY2
-/* Stack structures for CRAY-1, CRAY X-MP, and CRAY Y-MP */
-struct stack_control_header
-  {
-    long shgrow:32;		/* Number of times stack has grown.  */
-    long shaseg:32;		/* Size of increments to stack.  */
-    long shhwm:32;		/* High water mark of stack.  */
-    long shsize:32;		/* Current size of stack (all segments).  */
-  };
-
-/* The stack segment linkage control information occurs at
-   the high-address end of a stack segment.  (The stack
-   grows from low addresses to high addresses.)  The initial
-   part of the stack segment linkage control information is
-   0200 (octal) words.  This provides for register storage
-   for the routine which overflows the stack.  */
-
-struct stack_segment_linkage
-  {
-    long ss[0200];		/* 0200 overflow words.  */
-    long sssize:32;		/* Number of words in this segment.  */
-    long ssbase:32;		/* Offset to stack base.  */
-    long:32;
-    long sspseg:32;		/* Offset to linkage control of previous
-				   segment of stack.  */
-    long:32;
-    long sstcpt:32;		/* Pointer to task common address block.  */
-    long sscsnm;		/* Private control structure number for
-				   microtasking.  */
-    long ssusr1;		/* Reserved for user.  */
-    long ssusr2;		/* Reserved for user.  */
-    long sstpid;		/* Process ID for pid based multi-tasking.  */
-    long ssgvup;		/* Pointer to multitasking thread giveup.  */
-    long sscray[7];		/* Reserved for Cray Research.  */
-    long ssa0;
-    long ssa1;
-    long ssa2;
-    long ssa3;
-    long ssa4;
-    long ssa5;
-    long ssa6;
-    long ssa7;
-    long sss0;
-    long sss1;
-    long sss2;
-    long sss3;
-    long sss4;
-    long sss5;
-    long sss6;
-    long sss7;
-  };
-
-#    else /* CRAY2 */
-/* The following structure defines the vector of words
-   returned by the STKSTAT library routine.  */
-struct stk_stat
-  {
-    long now;			/* Current total stack size.  */
-    long maxc;			/* Amount of contiguous space which would
-				   be required to satisfy the maximum
-				   stack demand to date.  */
-    long high_water;		/* Stack high-water mark.  */
-    long overflows;		/* Number of stack overflow ($STKOFEN) calls.  */
-    long hits;			/* Number of internal buffer hits.  */
-    long extends;		/* Number of block extensions.  */
-    long stko_mallocs;		/* Block allocations by $STKOFEN.  */
-    long underflows;		/* Number of stack underflow calls ($STKRETN).  */
-    long stko_free;		/* Number of deallocations by $STKRETN.  */
-    long stkm_free;		/* Number of deallocations by $STKMRET.  */
-    long segments;		/* Current number of stack segments.  */
-    long maxs;			/* Maximum number of stack segments so far.  */
-    long pad_size;		/* Stack pad size.  */
-    long current_address;	/* Current stack segment address.  */
-    long current_size;		/* Current stack segment size.  This
-				   number is actually corrupted by STKSTAT to
-				   include the fifteen word trailer area.  */
-    long initial_address;	/* Address of initial segment.  */
-    long initial_size;		/* Size of initial segment.  */
-  };
-
-/* The following structure describes the data structure which trails
-   any stack segment.  I think that the description in 'asdef' is
-   out of date.  I only describe the parts that I am sure about.  */
-
-struct stk_trailer
-  {
-    long this_address;		/* Address of this block.  */
-    long this_size;		/* Size of this block (does not include
-				   this trailer).  */
-    long unknown2;
-    long unknown3;
-    long link;			/* Address of trailer block of previous
-				   segment.  */
-    long unknown5;
-    long unknown6;
-    long unknown7;
-    long unknown8;
-    long unknown9;
-    long unknown10;
-    long unknown11;
-    long unknown12;
-    long unknown13;
-    long unknown14;
-  };
-
-#    endif /* CRAY2 */
-#   endif /* not CRAY_STACK */
-
-#   ifdef CRAY2
-/* Determine a "stack measure" for an arbitrary ADDRESS.
-   I doubt that "lint" will like this much.  */
-
-static long
-i00afunc (long *address)
-{
-  struct stk_stat status;
-  struct stk_trailer *trailer;
-  long *block, size;
-  long result = 0;
-
-  /* We want to iterate through all of the segments.  The first
-     step is to get the stack status structure.  We could do this
-     more quickly and more directly, perhaps, by referencing the
-     $LM00 common block, but I know that this works.  */
-
-  STKSTAT (&status);
-
-  /* Set up the iteration.  */
-
-  trailer = (struct stk_trailer *) (status.current_address
-				    + status.current_size
-				    - 15);
-
-  /* There must be at least one stack segment.  Therefore it is
-     a fatal error if "trailer" is null.  */
-
-  if (trailer == 0)
-    abort ();
-
-  /* Discard segments that do not contain our argument address.  */
-
-  while (trailer != 0)
-    {
-      block = (long *) trailer->this_address;
-      size = trailer->this_size;
-      if (block == 0 || size == 0)
-	abort ();
-      trailer = (struct stk_trailer *) trailer->link;
-      if ((block <= address) && (address < (block + size)))
-	break;
-    }
-
-  /* Set the result to the offset in this segment and add the sizes
-     of all predecessor segments.  */
-
-  result = address - block;
-
-  if (trailer == 0)
-    {
-      return result;
-    }
-
-  do
-    {
-      if (trailer->this_size <= 0)
-	abort ();
-      result += trailer->this_size;
-      trailer = (struct stk_trailer *) trailer->link;
-    }
-  while (trailer != 0);
-
-  /* We are done.  Note that if you present a bogus address (one
-     not in any segment), you will get a different number back, formed
-     from subtracting the address of the first block.  This is probably
-     not what you want.  */
-
-  return (result);
-}
-
-#   else /* not CRAY2 */
-/* Stack address function for a CRAY-1, CRAY X-MP, or CRAY Y-MP.
-   Determine the number of the cell within the stack,
-   given the address of the cell.  The purpose of this
-   routine is to linearize, in some sense, stack addresses
-   for alloca.  */
-
-static long
-i00afunc (long address)
-{
-  long stkl = 0;
-
-  long size, pseg, this_segment, stack;
-  long result = 0;
-
-  struct stack_segment_linkage *ssptr;
-
-  /* Register B67 contains the address of the end of the
-     current stack segment.  If you (as a subprogram) store
-     your registers on the stack and find that you are past
-     the contents of B67, you have overflowed the segment.
-
-     B67 also points to the stack segment linkage control
-     area, which is what we are really interested in.  */
-
-  stkl = CRAY_STACKSEG_END ();
-  ssptr = (struct stack_segment_linkage *) stkl;
-
-  /* If one subtracts 'size' from the end of the segment,
-     one has the address of the first word of the segment.
-
-     If this is not the first segment, 'pseg' will be
-     nonzero.  */
-
-  pseg = ssptr->sspseg;
-  size = ssptr->sssize;
-
-  this_segment = stkl - size;
-
-  /* It is possible that calling this routine itself caused
-     a stack overflow.  Discard stack segments which do not
-     contain the target address.  */
-
-  while (!(this_segment <= address && address <= stkl))
-    {
-#    ifdef DEBUG_I00AFUNC
-      fprintf (stderr, "%011o %011o %011o\n", this_segment, address, stkl);
-#    endif
-      if (pseg == 0)
-	break;
-      stkl = stkl - pseg;
-      ssptr = (struct stack_segment_linkage *) stkl;
-      size = ssptr->sssize;
-      pseg = ssptr->sspseg;
-      this_segment = stkl - size;
-    }
-
-  result = address - this_segment;
-
-  /* If you subtract pseg from the current end of the stack,
-     you get the address of the previous stack segment's end.
-     This seems a little convoluted to me, but I'll bet you save
-     a cycle somewhere.  */
-
-  while (pseg != 0)
-    {
-#    ifdef DEBUG_I00AFUNC
-      fprintf (stderr, "%011o %011o\n", pseg, size);
-#    endif
-      stkl = stkl - pseg;
-      ssptr = (struct stack_segment_linkage *) stkl;
-      size = ssptr->sssize;
-      pseg = ssptr->sspseg;
-      result += size;
-    }
-  return (result);
-}
-
-#   endif /* not CRAY2 */
-#  endif /* CRAY */
-
-# endif /* no alloca */
-#endif /* not GCC version 2 */

lib/fake-gai-errnos.h

@@ -1,19 +0,0 @@
-/*
- * fake library for ssh
- *
- * This file is included in getaddrinfo.c and getnameinfo.c.
- * See getaddrinfo.c and getnameinfo.c.
- */
-
-/* for old netdb.h */
-#ifndef EAI_NODATA
-#define EAI_NODATA	1
-#endif
-
-#ifndef EAI_MEMORY
-#define EAI_MEMORY	2
-#endif
-
-#ifndef EAI_FAMILY
-#define EAI_FAMILY	3
-#endif

lib/fake-getaddrinfo.h

@@ -1,47 +0,0 @@
-#ifndef _FAKE_GETADDRINFO_H
-#define _FAKE_GETADDRINFO_H
-
-#include "fake-gai-errnos.h"
-
-#ifndef AI_PASSIVE
-# define AI_PASSIVE        1
-# define AI_CANONNAME      2
-#endif
-
-#ifndef NI_NUMERICHOST
-# define NI_NUMERICHOST    2
-# define NI_NAMEREQD       4
-# define NI_NUMERICSERV    8
-#endif
-
-#ifndef AI_NUMERICHOST
-#define AI_NUMERICHOST 4
-#endif
-
-#ifndef HAVE_STRUCT_ADDRINFO
-struct addrinfo {
-	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME */
-	int	ai_family;	/* PF_xxx */
-	int	ai_socktype;	/* SOCK_xxx */
-	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */
-	size_t	ai_addrlen;	/* length of ai_addr */
-	char	*ai_canonname;	/* canonical name for hostname */
-	struct sockaddr *ai_addr;	/* binary address */
-	struct addrinfo *ai_next;	/* next structure in linked list */
-};
-#endif /* !HAVE_STRUCT_ADDRINFO */
-
-#if !HAVE_DECL_GETADDRINFO
-int getaddrinfo(const char *hostname, const char *servname, 
-                const struct addrinfo *hints, struct addrinfo **res);
-#endif /* !HAVE_GETADDRINFO */
-
-#if !HAVE_DECL_GAI_STRERROR
-char *gai_strerror(int ecode);
-#endif /* !HAVE_GAI_STRERROR */
-
-#if !HAVE_DECL_FREEADDRINFO
-void freeaddrinfo(struct addrinfo *ai);
-#endif /* !HAVE_FREEADDRINFO */
-
-#endif /* _FAKE_GETADDRINFO_H */

lib/getopt.h

@@ -1,133 +0,0 @@
-/* Declarations for getopt.
-   Copyright (C) 1989,90,91,92,93,94,96,97 Free Software Foundation, Inc.
-
-NOTE: The canonical source of this file is maintained with the GNU C Library.
-Bugs can be reported to bug-glibc@prep.ai.mit.edu.
-
-This program is free software; you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option) any
-later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#ifndef _GETOPT_H
-#define _GETOPT_H 1
-
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
-/* For communication from `getopt' to the caller.
-   When `getopt' finds an option that takes an argument,
-   the argument value is returned here.
-   Also, when `ordering' is RETURN_IN_ORDER,
-   each non-option ARGV-element is returned here.  */
-
-extern char *optarg;
-
-/* Index in ARGV of the next element to be scanned.
-   This is used for communication to and from the caller
-   and for communication between successive calls to `getopt'.
-
-   On entry to `getopt', zero means this is the first call; initialize.
-
-   When `getopt' returns -1, this is the index of the first of the
-   non-option elements that the caller should itself scan.
-
-   Otherwise, `optind' communicates from one call to the next
-   how much of ARGV has been scanned so far.  */
-
-extern int optind;
-
-/* Callers store zero here to inhibit the error message `getopt' prints
-   for unrecognized options.  */
-
-extern int opterr;
-
-/* Set to an option character which was unrecognized.  */
-
-extern int optopt;
-
-/* Describe the long-named options requested by the application.
-   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
-   of `struct option' terminated by an element containing a name which is
-   zero.
-
-   The field `has_arg' is:
-   no_argument		(or 0) if the option does not take an argument,
-   required_argument	(or 1) if the option requires an argument,
-   optional_argument 	(or 2) if the option takes an optional argument.
-
-   If the field `flag' is not NULL, it points to a variable that is set
-   to the value given in the field `val' when the option is found, but
-   left unchanged if the option is not found.
-
-   To have a long-named option do something other than set an `int' to
-   a compiled-in constant, such as set a value from `optarg', set the
-   option's `flag' field to zero and its `val' field to a nonzero
-   value (the equivalent single-letter option character, if there is
-   one).  For long options that have a zero `flag' field, `getopt'
-   returns the contents of the `val' field.  */
-
-struct option
-{
-#if defined (__STDC__) && __STDC__
-  const char *name;
-#else
-  char *name;
-#endif
-  /* has_arg can't be an enum because some compilers complain about
-     type mismatches in all the code that assumes it is an int.  */
-  int has_arg;
-  int *flag;
-  int val;
-};
-
-/* Names for the values of the `has_arg' field of `struct option'.  */
-
-#define	no_argument		0
-#define required_argument	1
-#define optional_argument	2
-
-#if defined (__STDC__) && __STDC__
-#ifdef __GNU_LIBRARY__
-/* Many other libraries have conflicting prototypes for getopt, with
-   differences in the consts, in stdlib.h.  To avoid compilation
-   errors, only prototype getopt for the GNU C library.  */
-extern int getopt (int argc, char *const *argv, const char *shortopts);
-#else /* not __GNU_LIBRARY__ */
-extern int getopt ();
-#endif /* __GNU_LIBRARY__ */
-extern int getopt_long (int argc, char *const *argv, const char *shortopts,
-		        const struct option *longopts, int *longind);
-extern int getopt_long_only (int argc, char *const *argv,
-			     const char *shortopts,
-		             const struct option *longopts, int *longind);
-
-/* Internal only.  Users should not call this directly.  */
-extern int _getopt_internal (int argc, char *const *argv,
-			     const char *shortopts,
-		             const struct option *longopts, int *longind,
-			     int long_only);
-#else /* not __STDC__ */
-extern int getopt ();
-extern int getopt_long ();
-extern int getopt_long_only ();
-
-extern int _getopt_internal ();
-#endif /* __STDC__ */
-
-#ifdef	__cplusplus
-}
-#endif
-
-#endif /* _GETOPT_H */

lib/malloc.c

@@ -1,39 +0,0 @@
-/* Work around bug on some systems where malloc (0) fails.
-   Copyright (C) 1997 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation, Inc., Foundation,
-   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.  */
-
-/* written by Jim Meyering */
-
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-#undef malloc
-
-#include <sys/types.h>
-
-char *malloc ();
-
-/* Allocate an N-byte block of memory from the heap.
-   If N is zero, allocate a 1-byte block.  */
-
-char *
-rpl_malloc (n)
-     size_t n;
-{
-  if (n == 0)
-    n = 1;
-  return malloc (n);
-}

lib/memcmp.c

@@ -1,395 +0,0 @@
-/* Copyright (C) 1991, 1993, 1995, 1997, 1998 Free Software Foundation, Inc.
-   Contributed by Torbjorn Granlund (tege@sics.se).
-
-   NOTE: The canonical source of this file is maintained with the GNU C Library.
-   Bugs can be reported to bug-glibc@prep.ai.mit.edu.
-
-   This program is free software; you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the
-   Free Software Foundation; either version 2, or (at your option) any
-   later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation, Inc.,
-   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#ifdef HAVE_INTTYPES_H
-#include <inttypes.h>
-#endif
-
-#undef	__ptr_t
-#if defined __cplusplus || (defined __STDC__ && __STDC__)
-# define __ptr_t	void *
-#else /* Not C++ or ANSI C.  */
-# undef	const
-# define const
-# define __ptr_t	char *
-#endif /* C++ or ANSI C.  */
-
-#ifndef __P
-# if defined __GNUC__ || (defined __STDC__ && __STDC__)
-#  define __P(args) args
-# else
-#  define __P(args) ()
-# endif  /* GCC.  */
-#endif  /* Not __P.  */
-
-#if defined HAVE_STRING_H || defined _LIBC
-# include <string.h>
-#endif
-
-#undef memcmp
-
-#ifdef _LIBC
-
-# include <memcopy.h>
-
-#else	/* Not in the GNU C library.  */
-
-# include <sys/types.h>
-
-/* Type to use for aligned memory operations.
-   This should normally be the biggest type supported by a single load
-   and store.  Must be an unsigned type.  */
-# define op_t	unsigned long int
-# define OPSIZ	(sizeof(op_t))
-
-/* Threshold value for when to enter the unrolled loops.  */
-# define OP_T_THRES	16
-
-/* Type to use for unaligned operations.  */
-typedef unsigned char byte;
-
-# ifndef WORDS_BIGENDIAN
-#  define MERGE(w0, sh_1, w1, sh_2) (((w0) >> (sh_1)) | ((w1) << (sh_2)))
-# else
-#  define MERGE(w0, sh_1, w1, sh_2) (((w0) << (sh_1)) | ((w1) >> (sh_2)))
-# endif
-
-#endif	/* In the GNU C library.  */
-
-#ifdef WORDS_BIGENDIAN
-# define CMP_LT_OR_GT(a, b) ((a) > (b) ? 1 : -1)
-#else
-# define CMP_LT_OR_GT(a, b) memcmp_bytes ((a), (b))
-#endif
-
-/* BE VERY CAREFUL IF YOU CHANGE THIS CODE!  */
-
-/* The strategy of this memcmp is:
-
-   1. Compare bytes until one of the block pointers is aligned.
-
-   2. Compare using memcmp_common_alignment or
-      memcmp_not_common_alignment, regarding the alignment of the other
-      block after the initial byte operations.  The maximum number of
-      full words (of type op_t) are compared in this way.
-
-   3. Compare the few remaining bytes.  */
-
-#ifndef WORDS_BIGENDIAN
-/* memcmp_bytes -- Compare A and B bytewise in the byte order of the machine.
-   A and B are known to be different.
-   This is needed only on little-endian machines.  */
-
-static int memcmp_bytes __P((op_t, op_t));
-
-# ifdef  __GNUC__
-__inline
-# endif
-static int
-memcmp_bytes (a, b)
-     op_t a, b;
-{
-  intptr_t srcp1 = (intptr_t) &a;
-  intptr_t srcp2 = (intptr_t) &b;
-  op_t a0, b0;
-
-  do
-    {
-      a0 = ((byte *) srcp1)[0];
-      b0 = ((byte *) srcp2)[0];
-      srcp1 += 1;
-      srcp2 += 1;
-    }
-  while (a0 == b0);
-  return a0 - b0;
-}
-#endif
-
-static int memcmp_common_alignment __P((intptr_t, intptr_t, size_t));
-
-/* memcmp_common_alignment -- Compare blocks at SRCP1 and SRCP2 with LEN `op_t'
-   objects (not LEN bytes!).  Both SRCP1 and SRCP2 should be aligned for
-   memory operations on `op_t's.  */
-#ifdef	__GNUC__
-__inline
-#endif
-static int
-memcmp_common_alignment (srcp1, srcp2, len)
-     intptr_t srcp1;
-     intptr_t srcp2;
-     size_t len;
-{
-  op_t a0, a1;
-  op_t b0, b1;
-
-  switch (len % 4)
-    {
-    default: /* Avoid warning about uninitialized local variables.  */
-    case 2:
-      a0 = ((op_t *) srcp1)[0];
-      b0 = ((op_t *) srcp2)[0];
-      srcp1 -= 2 * OPSIZ;
-      srcp2 -= 2 * OPSIZ;
-      len += 2;
-      goto do1;
-    case 3:
-      a1 = ((op_t *) srcp1)[0];
-      b1 = ((op_t *) srcp2)[0];
-      srcp1 -= OPSIZ;
-      srcp2 -= OPSIZ;
-      len += 1;
-      goto do2;
-    case 0:
-      if (OP_T_THRES <= 3 * OPSIZ && len == 0)
-	return 0;
-      a0 = ((op_t *) srcp1)[0];
-      b0 = ((op_t *) srcp2)[0];
-      goto do3;
-    case 1:
-      a1 = ((op_t *) srcp1)[0];
-      b1 = ((op_t *) srcp2)[0];
-      srcp1 += OPSIZ;
-      srcp2 += OPSIZ;
-      len -= 1;
-      if (OP_T_THRES <= 3 * OPSIZ && len == 0)
-	goto do0;
-      /* Fall through.  */
-    }
-
-  do
-    {
-      a0 = ((op_t *) srcp1)[0];
-      b0 = ((op_t *) srcp2)[0];
-      if (a1 != b1)
-	return CMP_LT_OR_GT (a1, b1);
-
-    do3:
-      a1 = ((op_t *) srcp1)[1];
-      b1 = ((op_t *) srcp2)[1];
-      if (a0 != b0)
-	return CMP_LT_OR_GT (a0, b0);
-
-    do2:
-      a0 = ((op_t *) srcp1)[2];
-      b0 = ((op_t *) srcp2)[2];
-      if (a1 != b1)
-	return CMP_LT_OR_GT (a1, b1);
-
-    do1:
-      a1 = ((op_t *) srcp1)[3];
-      b1 = ((op_t *) srcp2)[3];
-      if (a0 != b0)
-	return CMP_LT_OR_GT (a0, b0);
-
-      srcp1 += 4 * OPSIZ;
-      srcp2 += 4 * OPSIZ;
-      len -= 4;
-    }
-  while (len != 0);
-
-  /* This is the right position for do0.  Please don't move
-     it into the loop.  */
- do0:
-  if (a1 != b1)
-    return CMP_LT_OR_GT (a1, b1);
-  return 0;
-}
-
-static int memcmp_not_common_alignment __P((intptr_t, intptr_t, size_t));
-
-/* memcmp_not_common_alignment -- Compare blocks at SRCP1 and SRCP2 with LEN
-   `op_t' objects (not LEN bytes!).  SRCP2 should be aligned for memory
-   operations on `op_t', but SRCP1 *should be unaligned*.  */
-#ifdef	__GNUC__
-__inline
-#endif
-static int
-memcmp_not_common_alignment (srcp1, srcp2, len)
-     intptr_t srcp1;
-     intptr_t srcp2;
-     size_t len;
-{
-  op_t a0, a1, a2, a3;
-  op_t b0, b1, b2, b3;
-  op_t x;
-  int shl, shr;
-
-  /* Calculate how to shift a word read at the memory operation
-     aligned srcp1 to make it aligned for comparison.  */
-
-  shl = 8 * (srcp1 % OPSIZ);
-  shr = 8 * OPSIZ - shl;
-
-  /* Make SRCP1 aligned by rounding it down to the beginning of the `op_t'
-     it points in the middle of.  */
-  srcp1 &= -OPSIZ;
-
-  switch (len % 4)
-    {
-    default: /* Avoid warning about uninitialized local variables.  */
-    case 2:
-      a1 = ((op_t *) srcp1)[0];
-      a2 = ((op_t *) srcp1)[1];
-      b2 = ((op_t *) srcp2)[0];
-      srcp1 -= 1 * OPSIZ;
-      srcp2 -= 2 * OPSIZ;
-      len += 2;
-      goto do1;
-    case 3:
-      a0 = ((op_t *) srcp1)[0];
-      a1 = ((op_t *) srcp1)[1];
-      b1 = ((op_t *) srcp2)[0];
-      srcp2 -= 1 * OPSIZ;
-      len += 1;
-      goto do2;
-    case 0:
-      if (OP_T_THRES <= 3 * OPSIZ && len == 0)
-	return 0;
-      a3 = ((op_t *) srcp1)[0];
-      a0 = ((op_t *) srcp1)[1];
-      b0 = ((op_t *) srcp2)[0];
-      srcp1 += 1 * OPSIZ;
-      goto do3;
-    case 1:
-      a2 = ((op_t *) srcp1)[0];
-      a3 = ((op_t *) srcp1)[1];
-      b3 = ((op_t *) srcp2)[0];
-      srcp1 += 2 * OPSIZ;
-      srcp2 += 1 * OPSIZ;
-      len -= 1;
-      if (OP_T_THRES <= 3 * OPSIZ && len == 0)
-	goto do0;
-      /* Fall through.  */
-    }
-
-  do
-    {
-      a0 = ((op_t *) srcp1)[0];
-      b0 = ((op_t *) srcp2)[0];
-      x = MERGE(a2, shl, a3, shr);
-      if (x != b3)
-	return CMP_LT_OR_GT (x, b3);
-
-    do3:
-      a1 = ((op_t *) srcp1)[1];
-      b1 = ((op_t *) srcp2)[1];
-      x = MERGE(a3, shl, a0, shr);
-      if (x != b0)
-	return CMP_LT_OR_GT (x, b0);
-
-    do2:
-      a2 = ((op_t *) srcp1)[2];
-      b2 = ((op_t *) srcp2)[2];
-      x = MERGE(a0, shl, a1, shr);
-      if (x != b1)
-	return CMP_LT_OR_GT (x, b1);
-
-    do1:
-      a3 = ((op_t *) srcp1)[3];
-      b3 = ((op_t *) srcp2)[3];
-      x = MERGE(a1, shl, a2, shr);
-      if (x != b2)
-	return CMP_LT_OR_GT (x, b2);
-
-      srcp1 += 4 * OPSIZ;
-      srcp2 += 4 * OPSIZ;
-      len -= 4;
-    }
-  while (len != 0);
-
-  /* This is the right position for do0.  Please don't move
-     it into the loop.  */
- do0:
-  x = MERGE(a2, shl, a3, shr);
-  if (x != b3)
-    return CMP_LT_OR_GT (x, b3);
-  return 0;
-}
-
-int
-rpl_memcmp (s1, s2, len)
-     const __ptr_t s1;
-     const __ptr_t s2;
-     size_t len;
-{
-  op_t a0;
-  op_t b0;
-  intptr_t srcp1 = (intptr_t) s1;
-  intptr_t srcp2 = (intptr_t) s2;
-  op_t res;
-
-  if (len >= OP_T_THRES)
-    {
-      /* There are at least some bytes to compare.  No need to test
-	 for LEN == 0 in this alignment loop.  */
-      while (srcp2 % OPSIZ != 0)
-	{
-	  a0 = ((byte *) srcp1)[0];
-	  b0 = ((byte *) srcp2)[0];
-	  srcp1 += 1;
-	  srcp2 += 1;
-	  res = a0 - b0;
-	  if (res != 0)
-	    return res;
-	  len -= 1;
-	}
-
-      /* SRCP2 is now aligned for memory operations on `op_t'.
-	 SRCP1 alignment determines if we can do a simple,
-	 aligned compare or need to shuffle bits.  */
-
-      if (srcp1 % OPSIZ == 0)
-	res = memcmp_common_alignment (srcp1, srcp2, len / OPSIZ);
-      else
-	res = memcmp_not_common_alignment (srcp1, srcp2, len / OPSIZ);
-      if (res != 0)
-	return res;
-
-      /* Number of bytes remaining in the interval [0..OPSIZ-1].  */
-      srcp1 += len & -OPSIZ;
-      srcp2 += len & -OPSIZ;
-      len %= OPSIZ;
-    }
-
-  /* There are just a few bytes to compare.  Use byte memory operations.  */
-  while (len != 0)
-    {
-      a0 = ((byte *) srcp1)[0];
-      b0 = ((byte *) srcp2)[0];
-      srcp1 += 1;
-      srcp2 += 1;
-      res = a0 - b0;
-      if (res != 0)
-	return res;
-      len -= 1;
-    }
-
-  return 0;
-}
-
-#ifdef weak_alias
-# undef bcmp
-weak_alias (memcmp, bcmp)
-#endif

lib/realloc.c

@@ -1,44 +0,0 @@
-/* Work around bug on some systems where realloc (NULL, 0) fails.
-   Copyright (C) 1997 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation, Inc., Foundation,
-   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.  */
-
-/* written by Jim Meyering */
-
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-#undef realloc
-
-#include <sys/types.h>
-
-char *malloc ();
-char *realloc ();
-
-/* Change the size of an allocated block of memory P to N bytes,
-   with error checking.  If N is zero, change it to 1.  If P is NULL,
-   use malloc.  */
-
-char *
-rpl_realloc (p, n)
-     char *p;
-     size_t n;
-{
-  if (n == 0)
-    n = 1;
-  if (p == 0)
-    return malloc (n);
-  return realloc (p, n);
-}

lib/xalloc.h

@@ -1,29 +0,0 @@
-#include <sys/types.h>
-
-#ifndef PARAMS
-# if defined PROTOTYPES || (defined __STDC__ && __STDC__)
-#  define PARAMS(Args) Args
-# else
-#  define PARAMS(Args) ()
-# endif
-#endif
-
-/* Exit value when the requested amount of memory is not available.
-   The caller may set it to some other value.  */
-extern int xalloc_exit_failure;
-
-/* FIXME: describe */
-extern char *const xalloc_msg_memory_exhausted;
-
-/* FIXME: describe */
-extern void (*xalloc_fail_func) (int);
-
-void *xmalloc PARAMS ((size_t n)) __attribute__ ((__malloc__));
-void *xmalloc_and_zero PARAMS ((size_t n)) __attribute__ ((__malloc__));
-void *xcalloc PARAMS ((size_t n, size_t s));
-void *xrealloc PARAMS ((void *p, size_t n)) __attribute__ ((__malloc__));
-
-char *xstrdup PARAMS ((const char *s)) __attribute__ ((__malloc__));
-
-extern int xasprintf(char **strp, const char *fmt, ...);
-extern int xvasprintf(char **strp, const char *fmt, va_list ap);

lib/xmalloc.c

@@ -1,164 +0,0 @@
-/* xmalloc.c -- malloc with out of memory checking
-   Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation, Inc., Foundation,
-   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.  */
-
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <sys/types.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdarg.h>
-#include <errno.h>
-
-#if STDC_HEADERS
-# include <stdlib.h>
-#else
-void *calloc ();
-void *malloc ();
-void *realloc ();
-void free ();
-#endif
-
-#include "dropin.h"
-#include "xalloc.h"
-
-#ifndef EXIT_FAILURE
-# define EXIT_FAILURE 1
-#endif
-
-/* Prototypes for functions defined here.  */
-#if defined (__STDC__) && __STDC__
-void *xmalloc (size_t n);
-void *xcalloc (size_t n, size_t s);
-void *xrealloc (void *p, size_t n);
-#endif
-
-/* Exit value when the requested amount of memory is not available.
-   The caller may set it to some other value.  */
-int xalloc_exit_failure = EXIT_FAILURE;
-
-/* FIXME: describe */
-char *const xalloc_msg_memory_exhausted = "Memory exhausted";
-
-/* FIXME: describe */
-void (*xalloc_fail_func) (int) = NULL;
-
-static void
-xalloc_fail (int size)
-{
-  if (xalloc_fail_func)
-    (*xalloc_fail_func) (size);
-  fprintf(stderr, "%s\n", xalloc_msg_memory_exhausted);
-  exit(xalloc_exit_failure);
-}
-
-/* Allocate N bytes of memory dynamically, with error checking.  */
-
-void *
-xmalloc (size_t n)
-{
-  void *p;
-
-  p = malloc (n);
-  if (p == NULL)
-    xalloc_fail ((int)n);
-  return p;
-}
-
-/* Allocate N bytes of memory dynamically, and set it all to zero. */
-
-void *
-xmalloc_and_zero (size_t n)
-{
-  void *p;
-
-  p = malloc (n);
-  if (p == NULL)
-    xalloc_fail ((int)n);
-  memset (p, '\0', n);
-  return p;
-}
-
-/* Change the size of an allocated block of memory P to N bytes,
-   with error checking.
-   If P is NULL, run xmalloc.  */
-
-void *
-xrealloc (void *p, size_t n)
-{
-  p = realloc (p, n);
-  if (p == NULL)
-    xalloc_fail (n);
-  return p;
-}
-
-/* Duplicate a string */
-
-char *xstrdup(const char *s)
-{
-  char *p;
-  
-  p = strdup(s);
-  if(!p)
-    xalloc_fail ((int)strlen(s));
-  return p;
-}
-
-#ifdef NOT_USED
-
-/* Allocate memory for N elements of S bytes, with error checking.  */
-
-void *
-xcalloc (n, s)
-     size_t n, s;
-{
-  void *p;
-
-  p = calloc (n, s);
-  if (p == NULL)
-    xalloc_fail ();
-  return p;
-}
-
-#endif /* NOT_USED */
-
-int xasprintf(char **strp, const char *fmt, ...) {
-	int result;
-	va_list ap;
-	va_start(ap, fmt);
-	result = xvasprintf(strp, fmt, ap);
-	va_end(ap);
-	return result;
-}
-
-int xvasprintf(char **strp, const char *fmt, va_list ap) {
-#ifdef HAVE_MINGW
-	char buf[1024];
-	int result = vsnprintf(buf, sizeof buf, fmt, ap);
-	if(result < 0)
-		exit(xalloc_exit_failure);
-	*strp = xstrdup(buf);
-#else
-	int result = vasprintf(strp, fmt, ap);
-	if(result < 0) {
-		fprintf(stderr, "vasprintf() failed: %s\n", strerror(errno));
-  		exit(xalloc_exit_failure);
-	}
-#endif
-	return result;
-}

m4/Makefile.am

@@ -1,4 +0,0 @@
-## Process this file with automake to produce Makefile.in   -*-Makefile-*-
-
-EXTRA_DIST = README *.m4
-

m4/README

@@ -1,8 +0,0 @@
-These files are used by a program called aclocal (part of the GNU automake
-package).  aclocal uses these files to create aclocal.m4 which is in turn
-used by autoconf to create the configure script at the the top level in
-this distribution.
-
-The Makefile.am file in this directory is automatically generated
-from the template file, Makefile.am.in.  The generation will fail
-if you don't have all the right tools.

m4/attribute.m4

@@ -9,8 +9,8 @@ AC_DEFUN([tinc_ATTRIBUTE],
     CFLAGS="$CFLAGS -Wall -Werror"
     AC_COMPILE_IFELSE(
       [AC_LANG_SOURCE(
-        [void test(void) __attribute__ (($1));
+        [void *test(void) __attribute__ (($1));
-	 void test(void) { return; }
+	 void *test(void) { return (void *)0; }
 	],
        )],
        [tinc_cv_attribute_$1=yes],

m4/ax_append_flag.m4

@@ -0,0 +1,69 @@
+# ===========================================================================
+#      http://www.gnu.org/software/autoconf-archive/ax_append_flag.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_APPEND_FLAG(FLAG, [FLAGS-VARIABLE])
+#
+# DESCRIPTION
+#
+#   FLAG is appended to the FLAGS-VARIABLE shell variable, with a space
+#   added in between.
+#
+#   If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
+#   CFLAGS) is used.  FLAGS-VARIABLE is not changed if it already contains
+#   FLAG.  If FLAGS-VARIABLE is unset in the shell, it is set to exactly
+#   FLAG.
+#
+#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
+#
+#   This program is free software: you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation, either version 3 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 2
+
+AC_DEFUN([AX_APPEND_FLAG],
+[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX
+AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])])dnl
+AS_VAR_SET_IF(FLAGS,
+  [case " AS_VAR_GET(FLAGS) " in
+    *" $1 "*)
+      AC_RUN_LOG([: FLAGS already contains $1])
+      ;;
+    *)
+      AC_RUN_LOG([: FLAGS="$FLAGS $1"])
+      AS_VAR_SET(FLAGS, ["AS_VAR_GET(FLAGS) $1"])
+      ;;
+   esac],
+  [AS_VAR_SET(FLAGS,["$1"])])
+AS_VAR_POPDEF([FLAGS])dnl
+])dnl AX_APPEND_FLAG

m4/ax_cflags_warn_all.m4

@@ -0,0 +1,122 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_cflags_warn_all.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CFLAGS_WARN_ALL   [(shellvar [,default, [A/NA]])]
+#   AX_CXXFLAGS_WARN_ALL [(shellvar [,default, [A/NA]])]
+#   AX_FCFLAGS_WARN_ALL  [(shellvar [,default, [A/NA]])]
+#
+# DESCRIPTION
+#
+#   Try to find a compiler option that enables most reasonable warnings.
+#
+#   For the GNU compiler it will be -Wall (and -ansi -pedantic) The result
+#   is added to the shellvar being CFLAGS, CXXFLAGS, or FCFLAGS by default.
+#
+#   Currently this macro knows about the GCC, Solaris, Digital Unix, AIX,
+#   HP-UX, IRIX, NEC SX-5 (Super-UX 10), Cray J90 (Unicos 10.0.0.8), and
+#   Intel compilers.  For a given compiler, the Fortran flags are much more
+#   experimental than their C equivalents.
+#
+#    - $1 shell-variable-to-add-to : CFLAGS, CXXFLAGS, or FCFLAGS
+#    - $2 add-value-if-not-found : nothing
+#    - $3 action-if-found : add value to shellvariable
+#    - $4 action-if-not-found : nothing
+#
+#   NOTE: These macros depend on AX_APPEND_FLAG.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+#   Copyright (c) 2010 Rhys Ulerich <rhys.ulerich@gmail.com>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 3 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 15
+
+AC_DEFUN([AX_FLAGS_WARN_ALL],[dnl
+AS_VAR_PUSHDEF([FLAGS],[_AC_LANG_PREFIX[]FLAGS])dnl
+AS_VAR_PUSHDEF([VAR],[ac_cv_[]_AC_LANG_ABBREV[]flags_warn_all])dnl
+AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum warnings],
+VAR,[VAR="no, unknown"
+ac_save_[]FLAGS="$[]FLAGS"
+for ac_arg dnl
+in "-warn all  % -warn all"   dnl Intel
+   "-pedantic  % -Wall"       dnl GCC
+   "-xstrconst % -v"          dnl Solaris C
+   "-std1      % -verbose -w0 -warnprotos" dnl Digital Unix
+   "-qlanglvl=ansi % -qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd" dnl AIX
+   "-ansi -ansiE % -fullwarn" dnl IRIX
+   "+ESlit     % +w1"         dnl HP-UX C
+   "-Xc        % -pvctl[,]fullmsg" dnl NEC SX-5 (Super-UX 10)
+   "-h conform % -h msglevel 2" dnl Cray C (Unicos)
+   #
+do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
+   AC_COMPILE_IFELSE([AC_LANG_PROGRAM],
+                     [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break])
+done
+FLAGS="$ac_save_[]FLAGS"
+])
+AS_VAR_POPDEF([FLAGS])dnl
+AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
+case ".$VAR" in
+     .ok|.ok,*) m4_ifvaln($3,$3) ;;
+   .|.no|.no,*) m4_default($4,[m4_ifval($2,[AX_APPEND_FLAG([$2], [$1])])]) ;;
+   *) m4_default($3,[AX_APPEND_FLAG([$VAR], [$1])]) ;;
+esac
+AS_VAR_POPDEF([VAR])dnl
+])dnl AX_FLAGS_WARN_ALL
+dnl  implementation tactics:
+dnl   the for-argument contains a list of options. The first part of
+dnl   these does only exist to detect the compiler - usually it is
+dnl   a global option to enable -ansi or -extrawarnings. All other
+dnl   compilers will fail about it. That was needed since a lot of
+dnl   compilers will give false positives for some option-syntax
+dnl   like -Woption or -Xoption as they think of it is a pass-through
+dnl   to later compile stages or something. The "%" is used as a
+dnl   delimiter. A non-option comment can be given after "%%" marks
+dnl   which will be shown but not added to the respective C/CXXFLAGS.
+
+AC_DEFUN([AX_CFLAGS_WARN_ALL],[dnl
+AC_LANG_PUSH([C])
+AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
+AC_LANG_POP([C])
+])
+
+AC_DEFUN([AX_CXXFLAGS_WARN_ALL],[dnl
+AC_LANG_PUSH([C++])
+AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
+AC_LANG_POP([C++])
+])
+
+AC_DEFUN([AX_FCFLAGS_WARN_ALL],[dnl
+AC_LANG_PUSH([Fortran])
+AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
+AC_LANG_POP([Fortran])
+])

m4/ax_check_compile_flag.m4

@@ -0,0 +1,72 @@
+# ===========================================================================
+#   http://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS])
+#
+# DESCRIPTION
+#
+#   Check whether the given FLAG works with the current language's compiler
+#   or gives an error.  (Warnings, however, are ignored)
+#
+#   ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
+#   success/failure.
+#
+#   If EXTRA-FLAGS is defined, it is added to the current language's default
+#   flags (e.g. CFLAGS) when the check is done.  The check is thus made with
+#   the flags: "CFLAGS EXTRA-FLAGS FLAG".  This can for example be used to
+#   force the compiler to issue an error when a bad flag is given.
+#
+#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
+#   macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
+#
+#   This program is free software: you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation, either version 3 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 2
+
+AC_DEFUN([AX_CHECK_COMPILE_FLAG],
+[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX
+AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
+AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
+  ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
+  _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+    [AS_VAR_SET(CACHEVAR,[yes])],
+    [AS_VAR_SET(CACHEVAR,[no])])
+  _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
+AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes],
+  [m4_default([$2], :)],
+  [m4_default([$3], :)])
+AS_VAR_POPDEF([CACHEVAR])dnl
+])dnl AX_CHECK_COMPILE_FLAGS

m4/ax_check_link_flag.m4

@@ -0,0 +1,71 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_check_link_flag.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CHECK_LINK_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS])
+#
+# DESCRIPTION
+#
+#   Check whether the given FLAG works with the linker or gives an error.
+#   (Warnings, however, are ignored)
+#
+#   ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
+#   success/failure.
+#
+#   If EXTRA-FLAGS is defined, it is added to the linker's default flags
+#   when the check is done.  The check is thus made with the flags: "LDFLAGS
+#   EXTRA-FLAGS FLAG".  This can for example be used to force the linker to
+#   issue an error when a bad flag is given.
+#
+#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
+#   macro in sync with AX_CHECK_{PREPROC,COMPILE}_FLAG.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
+#
+#   This program is free software: you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation, either version 3 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 2
+
+AC_DEFUN([AX_CHECK_LINK_FLAG],
+[AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_ldflags_$4_$1])dnl
+AC_CACHE_CHECK([whether the linker accepts $1], CACHEVAR, [
+  ax_check_save_flags=$LDFLAGS
+  LDFLAGS="$LDFLAGS $4 $1"
+  AC_LINK_IFELSE([AC_LANG_PROGRAM()],
+    [AS_VAR_SET(CACHEVAR,[yes])],
+    [AS_VAR_SET(CACHEVAR,[no])])
+  LDFLAGS=$ax_check_save_flags])
+AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes],
+  [m4_default([$2], :)],
+  [m4_default([$3], :)])
+AS_VAR_POPDEF([CACHEVAR])dnl
+])dnl AX_CHECK_LINK_FLAGS

m4/ax_require_defined.m4

@@ -0,0 +1,37 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_require_defined.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_REQUIRE_DEFINED(MACRO)
+#
+# DESCRIPTION
+#
+#   AX_REQUIRE_DEFINED is a simple helper for making sure other macros have
+#   been defined and thus are available for use.  This avoids random issues
+#   where a macro isn't expanded.  Instead the configure script emits a
+#   non-fatal:
+#
+#     ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found
+#
+#   It's like AC_REQUIRE except it doesn't expand the required macro.
+#
+#   Here's an example:
+#
+#     AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
+#
+# LICENSE
+#
+#   Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 1
+
+AC_DEFUN([AX_REQUIRE_DEFINED], [dnl
+  m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])])
+])dnl AX_REQUIRE_DEFINED

m4/openssl.m4

@@ -1,4 +1,4 @@
-dnl Check to find the OpenSSL headers/libraries
+dnl Check to find the LibreSSL/OpenSSL headers/libraries
 
 AC_DEFUN([tinc_OPENSSL],
 [
@@ -10,47 +10,49 @@ AC_DEFUN([tinc_OPENSSL],
         [],
         [AC_CHECK_LIB(dl, dlopen,
           [LIBS="$LIBS -ldl"],
-          [AC_MSG_ERROR([OpenSSL depends on libdl.]); break]
+          [AC_MSG_ERROR([LibreSSL/OpenSSL depends on libdl.]); break]
         )]
       )
     ;;
   esac
 
   AC_ARG_WITH(openssl,
-    AS_HELP_STRING([--with-openssl=DIR], [OpenSSL base directory, or:]),
+    AS_HELP_STRING([--with-openssl=DIR], [LibreSSL/OpenSSL base directory, or:]),
     [openssl="$withval"
      CPPFLAGS="$CPPFLAGS -I$withval/include"
      LDFLAGS="$LDFLAGS -L$withval/lib"]
   )
 
   AC_ARG_WITH(openssl-include,
-    AS_HELP_STRING([--with-openssl-include=DIR], [OpenSSL headers directory (without trailing /openssl)]),
+    AS_HELP_STRING([--with-openssl-include=DIR], [LibreSSL/OpenSSL headers directory (without trailing /openssl)]),
     [openssl_include="$withval"
      CPPFLAGS="$CPPFLAGS -I$withval"]
   )
 
   AC_ARG_WITH(openssl-lib,
-    AS_HELP_STRING([--with-openssl-lib=DIR], [OpenSSL library directory]),
+    AS_HELP_STRING([--with-openssl-lib=DIR], [LibreSSL/OpenSSL library directory]),
     [openssl_lib="$withval"
      LDFLAGS="$LDFLAGS -L$withval"]
   )
 
   AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h openssl/engine.h,
     [],
-    [AC_MSG_ERROR([OpenSSL header files not found.]); break]
+    [AC_MSG_ERROR([LibreSSL/OpenSSL header files not found.]); break]
   )
 
   AC_CHECK_LIB(crypto, EVP_EncryptInit_ex,
     [LIBS="-lcrypto $LIBS"],
-    [AC_MSG_ERROR([OpenSSL libraries not found.])]
+    [AC_MSG_ERROR([LibreSSL/OpenSSL libraries not found.])]
   )
 
-  AC_CHECK_FUNCS([RAND_pseudo_bytes EVP_EncryptInit_ex], ,
+  AC_CHECK_FUNCS([RAND_bytes EVP_EncryptInit_ex EVP_CIPHER_CTX_new], ,
-    [AC_MSG_ERROR([Missing OpenSSL functionality, make sure you have installed the latest version.]); break],
+    [AC_MSG_ERROR([Missing LibreSSL/OpenSSL functionality, make sure you have installed the latest version.]); break],
   )
 
-  AC_CHECK_DECL([OpenSSL_add_all_algorithms], ,
+  AC_CHECK_DECLS([OpenSSL_add_all_algorithms, EVP_aes_256_cfb], ,
-    [AC_MSG_ERROR([Missing OpenSSL functionality, make sure you have installed the latest version.]); break],
+    [AC_MSG_ERROR([Missing LibreSSL/OpenSSL functionality, make sure you have installed the latest version.]); break],
     [#include <openssl/evp.h>]
   )
+
+  AC_CHECK_FUNCS([BN_GENCB_new RSA_set0_key], , , [#include <openssl/rsa.h>])
 ])

missing

@@ -1,9 +1,9 @@
 #! /bin/sh
 # Common wrapper for a few potentially missing GNU programs.
 
-scriptversion=2012-06-26.16; # UTC
+scriptversion=2018-03-07.03; # UTC
 
-# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
 # Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
 
 # This program is free software; you can redistribute it and/or modify
@@ -17,7 +17,7 @@ scriptversion=2012-06-26.16; # UTC
 # GNU General Public License for more details.
 
 # You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -101,9 +101,9 @@ else
   exit $st
 fi
 
-perl_URL=http://www.perl.org/
+perl_URL=https://www.perl.org/
-flex_URL=http://flex.sourceforge.net/
+flex_URL=https://github.com/westes/flex
-gnu_software_URL=http://www.gnu.org/software
+gnu_software_URL=https://www.gnu.org/software
 
 program_details ()
 {
@@ -160,7 +160,7 @@ give_advice ()
       ;;
    autom4te*)
       echo "You might have modified some maintainer files that require"
-      echo "the 'automa4te' program to be rebuilt."
+      echo "the 'autom4te' program to be rebuilt."
       program_details 'autom4te'
       ;;
     bison*|yacc*)
@@ -207,9 +207,9 @@ give_advice "$1" | sed -e '1s/^/WARNING: /' \
 exit $st
 
 # Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
+# eval: (add-hook 'before-save-hook 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:

src/Makefile.am

@@ -2,13 +2,78 @@
 
 sbin_PROGRAMS = tincd
 
-EXTRA_DIST = linux/device.c bsd/device.c solaris/device.c cygwin/device.c mingw/device.c mingw/common.h
+tincd_SOURCES = \
+	have.h \
+	system.h \
+	avl_tree.c avl_tree.h \
+	conf.c conf.h \
+	connection.c connection.h \
+	device.h \
+	dropin.c dropin.h \
+	dummy_device.c \
+	edge.c edge.h \
+	ethernet.h \
+	event.c event.h \
+	fake-getaddrinfo.c fake-getaddrinfo.h \
+	fake-getnameinfo.c fake-getnameinfo.h \
+	graph.c graph.h \
+	ipv4.h \
+	ipv6.h \
+	list.c list.h \
+	logger.c logger.h \
+	meta.c meta.h \
+	multicast_device.c \
+	net.c net.h \
+	net_packet.c \
+	net_setup.c \
+	net_socket.c \
+	netutl.c netutl.h \
+	node.c node.h \
+	pidfile.c pidfile.h \
+	process.c process.h \
+	protocol.c protocol.h \
+	protocol_auth.c \
+	protocol_edge.c \
+	protocol_misc.c \
+	protocol_key.c \
+	protocol_subnet.c \
+	proxy.c proxy.h \
+	raw_socket_device.c \
+	route.c route.h \
+	subnet.c subnet.h \
+	tincd.c \
+	utils.c utils.h \
+	xalloc.h
+
+if !GETOPT
+tincd_SOURCES += \
+	getopt.c getopt.h \
+	getopt1.c
+endif
+
+if LINUX
+tincd_SOURCES += linux/device.c
+endif
+
+if BSD
+tincd_SOURCES += bsd/device.c
+if TUNEMU
+tincd_SOURCES += bsd/tunemu.c bsd/tunemu.h
+endif
+endif
+
+if SOLARIS
+tincd_SOURCES += solaris/device.c
+endif
+
+if MINGW
+tincd_SOURCES += mingw/device.c mingw/common.h
+endif
+
+if CYGWIN
+tincd_SOURCES += cygwin/device.c
+endif
 
-tincd_SOURCES = conf.c connection.c edge.c event.c graph.c logger.c meta.c net.c net_packet.c net_setup.c	\
-	net_socket.c netutl.c node.c process.c protocol.c protocol_auth.c protocol_edge.c protocol_misc.c	\
-	protocol_key.c protocol_subnet.c route.c subnet.c tincd.c \
-	dummy_device.c raw_socket_device.c multicast_device.c
-	
 if UML
 tincd_SOURCES += uml_device.c
 endif
@@ -17,29 +82,8 @@ if VDE
 tincd_SOURCES += vde_device.c
 endif
 
-if TUNEMU
-tincd_SOURCES += bsd/tunemu.c
-endif
-
-nodist_tincd_SOURCES = device.c
-
-DEFAULT_INCLUDES =
-
-INCLUDES = @INCLUDES@ -I$(top_builddir) -I$(top_srcdir)/lib
-
-noinst_HEADERS = conf.h connection.h device.h edge.h event.h graph.h logger.h meta.h net.h netutl.h node.h process.h	\
-	protocol.h route.h subnet.h bsd/tunemu.h
-
-LIBS = @LIBS@
-
 if TUNEMU
 LIBS += -lpcap
 endif
 
-tincd_LDADD = \
+AM_CPPFLAGS = -DCONFDIR=\"$(sysconfdir)\" -DRUNSTATEDIR=\"$(runstatedir)\" -DLOCALSTATEDIR=\"$(localstatedir)\" -I $(abs_top_builddir)/
-	$(top_builddir)/lib/libvpn.a
-
-AM_CFLAGS = -DCONFDIR=\"$(sysconfdir)\" -DLOCALSTATEDIR=\"$(localstatedir)\"
-
-dist-hook:
-	rm -f `find . -type l`

src/Makefile.in

@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.13.3 from Makefile.am.
+# Makefile.in generated by automake 1.16.2 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+# Copyright (C) 1994-2020 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -14,9 +14,18 @@
 
 @SET_MAKE@
 
-
 VPATH = @srcdir@
-am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
 am__make_running_with_option = \
   case $${target_option-} in \
       ?) ;; \
@@ -80,49 +89,81 @@ POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
 sbin_PROGRAMS = tincd$(EXEEXT)
-@UML_TRUE@am__append_1 = uml_device.c
+@GETOPT_FALSE@am__append_1 = \
-@VDE_TRUE@am__append_2 = vde_device.c
+@GETOPT_FALSE@	getopt.c getopt.h \
-@TUNEMU_TRUE@am__append_3 = bsd/tunemu.c
+@GETOPT_FALSE@	getopt1.c
-@TUNEMU_TRUE@am__append_4 = -lpcap
+
+@LINUX_TRUE@am__append_2 = linux/device.c
+@BSD_TRUE@am__append_3 = bsd/device.c
+@BSD_TRUE@@TUNEMU_TRUE@am__append_4 = bsd/tunemu.c bsd/tunemu.h
+@SOLARIS_TRUE@am__append_5 = solaris/device.c
+@MINGW_TRUE@am__append_6 = mingw/device.c mingw/common.h
+@CYGWIN_TRUE@am__append_7 = cygwin/device.c
+@UML_TRUE@am__append_8 = uml_device.c
+@VDE_TRUE@am__append_9 = vde_device.c
+@TUNEMU_TRUE@am__append_10 = -lpcap
 subdir = src
-DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
-	$(top_srcdir)/depcomp $(noinst_HEADERS)
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/attribute.m4 \
-	$(top_srcdir)/m4/lzo.m4 $(top_srcdir)/m4/openssl.m4 \
+	$(top_srcdir)/m4/ax_append_flag.m4 \
-	$(top_srcdir)/m4/zlib.m4 $(top_srcdir)/configure.in
+	$(top_srcdir)/m4/ax_cflags_warn_all.m4 \
+	$(top_srcdir)/m4/ax_check_compile_flag.m4 \
+	$(top_srcdir)/m4/ax_check_link_flag.m4 \
+	$(top_srcdir)/m4/ax_require_defined.m4 $(top_srcdir)/m4/lzo.m4 \
+	$(top_srcdir)/m4/openssl.m4 $(top_srcdir)/m4/zlib.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON)
 mkinstalldirs = $(install_sh) -d
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
 CONFIG_CLEAN_VPATH_FILES =
 am__installdirs = "$(DESTDIR)$(sbindir)"
 PROGRAMS = $(sbin_PROGRAMS)
-am__tincd_SOURCES_DIST = conf.c connection.c edge.c event.c graph.c \
+am__tincd_SOURCES_DIST = have.h system.h avl_tree.c avl_tree.h conf.c \
-	logger.c meta.c net.c net_packet.c net_setup.c net_socket.c \
+	conf.h connection.c connection.h device.h dropin.c dropin.h \
-	netutl.c node.c process.c protocol.c protocol_auth.c \
+	dummy_device.c edge.c edge.h ethernet.h event.c event.h \
-	protocol_edge.c protocol_misc.c protocol_key.c \
+	fake-getaddrinfo.c fake-getaddrinfo.h fake-getnameinfo.c \
-	protocol_subnet.c route.c subnet.c tincd.c dummy_device.c \
+	fake-getnameinfo.h graph.c graph.h ipv4.h ipv6.h list.c list.h \
-	raw_socket_device.c multicast_device.c uml_device.c \
+	logger.c logger.h meta.c meta.h multicast_device.c net.c net.h \
-	vde_device.c bsd/tunemu.c
+	net_packet.c net_setup.c net_socket.c netutl.c netutl.h node.c \
-@UML_TRUE@am__objects_1 = uml_device.$(OBJEXT)
+	node.h pidfile.c pidfile.h process.c process.h protocol.c \
-@VDE_TRUE@am__objects_2 = vde_device.$(OBJEXT)
+	protocol.h protocol_auth.c protocol_edge.c protocol_misc.c \
-@TUNEMU_TRUE@am__objects_3 = tunemu.$(OBJEXT)
+	protocol_key.c protocol_subnet.c proxy.c proxy.h \
-am_tincd_OBJECTS = conf.$(OBJEXT) connection.$(OBJEXT) edge.$(OBJEXT) \
+	raw_socket_device.c route.c route.h subnet.c subnet.h tincd.c \
-	event.$(OBJEXT) graph.$(OBJEXT) logger.$(OBJEXT) \
+	utils.c utils.h xalloc.h getopt.c getopt.h getopt1.c \
-	meta.$(OBJEXT) net.$(OBJEXT) net_packet.$(OBJEXT) \
+	linux/device.c bsd/device.c bsd/tunemu.c bsd/tunemu.h \
-	net_setup.$(OBJEXT) net_socket.$(OBJEXT) netutl.$(OBJEXT) \
+	solaris/device.c mingw/device.c mingw/common.h cygwin/device.c \
-	node.$(OBJEXT) process.$(OBJEXT) protocol.$(OBJEXT) \
+	uml_device.c vde_device.c
+@GETOPT_FALSE@am__objects_1 = getopt.$(OBJEXT) getopt1.$(OBJEXT)
+am__dirstamp = $(am__leading_dot)dirstamp
+@LINUX_TRUE@am__objects_2 = linux/device.$(OBJEXT)
+@BSD_TRUE@am__objects_3 = bsd/device.$(OBJEXT)
+@BSD_TRUE@@TUNEMU_TRUE@am__objects_4 = bsd/tunemu.$(OBJEXT)
+@SOLARIS_TRUE@am__objects_5 = solaris/device.$(OBJEXT)
+@MINGW_TRUE@am__objects_6 = mingw/device.$(OBJEXT)
+@CYGWIN_TRUE@am__objects_7 = cygwin/device.$(OBJEXT)
+@UML_TRUE@am__objects_8 = uml_device.$(OBJEXT)
+@VDE_TRUE@am__objects_9 = vde_device.$(OBJEXT)
+am_tincd_OBJECTS = avl_tree.$(OBJEXT) conf.$(OBJEXT) \
+	connection.$(OBJEXT) dropin.$(OBJEXT) dummy_device.$(OBJEXT) \
+	edge.$(OBJEXT) event.$(OBJEXT) fake-getaddrinfo.$(OBJEXT) \
+	fake-getnameinfo.$(OBJEXT) graph.$(OBJEXT) list.$(OBJEXT) \
+	logger.$(OBJEXT) meta.$(OBJEXT) multicast_device.$(OBJEXT) \
+	net.$(OBJEXT) net_packet.$(OBJEXT) net_setup.$(OBJEXT) \
+	net_socket.$(OBJEXT) netutl.$(OBJEXT) node.$(OBJEXT) \
+	pidfile.$(OBJEXT) process.$(OBJEXT) protocol.$(OBJEXT) \
 	protocol_auth.$(OBJEXT) protocol_edge.$(OBJEXT) \
 	protocol_misc.$(OBJEXT) protocol_key.$(OBJEXT) \
-	protocol_subnet.$(OBJEXT) route.$(OBJEXT) subnet.$(OBJEXT) \
+	protocol_subnet.$(OBJEXT) proxy.$(OBJEXT) \
-	tincd.$(OBJEXT) dummy_device.$(OBJEXT) \
+	raw_socket_device.$(OBJEXT) route.$(OBJEXT) subnet.$(OBJEXT) \
-	raw_socket_device.$(OBJEXT) multicast_device.$(OBJEXT) \
+	tincd.$(OBJEXT) utils.$(OBJEXT) $(am__objects_1) \
-	$(am__objects_1) $(am__objects_2) $(am__objects_3)
+	$(am__objects_2) $(am__objects_3) $(am__objects_4) \
-nodist_tincd_OBJECTS = device.$(OBJEXT)
+	$(am__objects_5) $(am__objects_6) $(am__objects_7) \
-tincd_OBJECTS = $(am_tincd_OBJECTS) $(nodist_tincd_OBJECTS)
+	$(am__objects_8) $(am__objects_9)
-tincd_DEPENDENCIES = $(top_builddir)/lib/libvpn.a
+tincd_OBJECTS = $(am_tincd_OBJECTS)
+tincd_LDADD = $(LDADD)
 AM_V_P = $(am__v_P_@AM_V@)
 am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
 am__v_P_0 = false
@@ -135,13 +176,32 @@ AM_V_at = $(am__v_at_@AM_V@)
 am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
 am__v_at_0 = @
 am__v_at_1 = 
+DEFAULT_INCLUDES = 
 depcomp = $(SHELL) $(top_srcdir)/depcomp
-am__depfiles_maybe = depfiles
+am__maybe_remake_depfiles = depfiles
+am__depfiles_remade = ./$(DEPDIR)/avl_tree.Po ./$(DEPDIR)/conf.Po \
+	./$(DEPDIR)/connection.Po ./$(DEPDIR)/dropin.Po \
+	./$(DEPDIR)/dummy_device.Po ./$(DEPDIR)/edge.Po \
+	./$(DEPDIR)/event.Po ./$(DEPDIR)/fake-getaddrinfo.Po \
+	./$(DEPDIR)/fake-getnameinfo.Po ./$(DEPDIR)/getopt.Po \
+	./$(DEPDIR)/getopt1.Po ./$(DEPDIR)/graph.Po \
+	./$(DEPDIR)/list.Po ./$(DEPDIR)/logger.Po ./$(DEPDIR)/meta.Po \
+	./$(DEPDIR)/multicast_device.Po ./$(DEPDIR)/net.Po \
+	./$(DEPDIR)/net_packet.Po ./$(DEPDIR)/net_setup.Po \
+	./$(DEPDIR)/net_socket.Po ./$(DEPDIR)/netutl.Po \
+	./$(DEPDIR)/node.Po ./$(DEPDIR)/pidfile.Po \
+	./$(DEPDIR)/process.Po ./$(DEPDIR)/protocol.Po \
+	./$(DEPDIR)/protocol_auth.Po ./$(DEPDIR)/protocol_edge.Po \
+	./$(DEPDIR)/protocol_key.Po ./$(DEPDIR)/protocol_misc.Po \
+	./$(DEPDIR)/protocol_subnet.Po ./$(DEPDIR)/proxy.Po \
+	./$(DEPDIR)/raw_socket_device.Po ./$(DEPDIR)/route.Po \
+	./$(DEPDIR)/subnet.Po ./$(DEPDIR)/tincd.Po \
+	./$(DEPDIR)/uml_device.Po ./$(DEPDIR)/utils.Po \
+	./$(DEPDIR)/vde_device.Po bsd/$(DEPDIR)/device.Po \
+	bsd/$(DEPDIR)/tunemu.Po cygwin/$(DEPDIR)/device.Po \
+	linux/$(DEPDIR)/device.Po mingw/$(DEPDIR)/device.Po \
+	solaris/$(DEPDIR)/device.Po
 am__mv = mv -f
-AM_V_lt = $(am__v_lt_@AM_V@)
-am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
-am__v_lt_0 = --silent
-am__v_lt_1 = 
 COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
 	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
 AM_V_CC = $(am__v_CC_@AM_V@)
@@ -154,14 +214,13 @@ AM_V_CCLD = $(am__v_CCLD_@AM_V@)
 am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@)
 am__v_CCLD_0 = @echo "  CCLD    " $@;
 am__v_CCLD_1 = 
-SOURCES = $(tincd_SOURCES) $(nodist_tincd_SOURCES)
+SOURCES = $(tincd_SOURCES)
 DIST_SOURCES = $(am__tincd_SOURCES_DIST)
 am__can_run_installinfo = \
   case $$AM_UPDATE_INFO_DIR in \
     n|no|NO) false;; \
     *) (install-info --version) >/dev/null 2>&1;; \
   esac
-HEADERS = $(noinst_HEADERS)
 am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
 # Read a list of newline-separated strings from the standard input,
 # and print each of them once, without duplicates.  Input order is
@@ -181,9 +240,9 @@ am__define_uniq_tagged_files = \
   done | $(am__uniquify_input)`
 ETAGS = etags
 CTAGS = ctags
+am__DIST_COMMON = $(srcdir)/Makefile.in $(top_srcdir)/depcomp
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 ACLOCAL = @ACLOCAL@
-ALLOCA = @ALLOCA@
 AMTAR = @AMTAR@
 AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
 AUTOCONF = @AUTOCONF@
@@ -204,7 +263,6 @@ ECHO_T = @ECHO_T@
 EGREP = @EGREP@
 EXEEXT = @EXEEXT@
 GREP = @GREP@
-INCLUDES = @INCLUDES@ -I$(top_builddir) -I$(top_srcdir)/lib
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
@@ -212,10 +270,8 @@ INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
 LDFLAGS = @LDFLAGS@
 LIBOBJS = @LIBOBJS@
-LIBS = @LIBS@ $(am__append_4)
+LIBS = @LIBS@ $(am__append_10)
-LN_S = @LN_S@
 LTLIBOBJS = @LTLIBOBJS@
-MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
 MKDIR_P = @MKDIR_P@
 OBJEXT = @OBJEXT@
@@ -227,7 +283,6 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
-RANLIB = @RANLIB@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
@@ -274,36 +329,37 @@ pdfdir = @pdfdir@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
+runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
 sysconfdir = @sysconfdir@
+systemd_path = @systemd_path@
 target_alias = @target_alias@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-EXTRA_DIST = linux/device.c bsd/device.c solaris/device.c cygwin/device.c mingw/device.c mingw/common.h
+tincd_SOURCES = have.h system.h avl_tree.c avl_tree.h conf.c conf.h \
-tincd_SOURCES = conf.c connection.c edge.c event.c graph.c logger.c \
+	connection.c connection.h device.h dropin.c dropin.h \
-	meta.c net.c net_packet.c net_setup.c net_socket.c netutl.c \
+	dummy_device.c edge.c edge.h ethernet.h event.c event.h \
-	node.c process.c protocol.c protocol_auth.c protocol_edge.c \
+	fake-getaddrinfo.c fake-getaddrinfo.h fake-getnameinfo.c \
-	protocol_misc.c protocol_key.c protocol_subnet.c route.c \
+	fake-getnameinfo.h graph.c graph.h ipv4.h ipv6.h list.c list.h \
-	subnet.c tincd.c dummy_device.c raw_socket_device.c \
+	logger.c logger.h meta.c meta.h multicast_device.c net.c net.h \
-	multicast_device.c $(am__append_1) $(am__append_2) \
+	net_packet.c net_setup.c net_socket.c netutl.c netutl.h node.c \
-	$(am__append_3)
+	node.h pidfile.c pidfile.h process.c process.h protocol.c \
-nodist_tincd_SOURCES = device.c
+	protocol.h protocol_auth.c protocol_edge.c protocol_misc.c \
-DEFAULT_INCLUDES = 
+	protocol_key.c protocol_subnet.c proxy.c proxy.h \
-noinst_HEADERS = conf.h connection.h device.h edge.h event.h graph.h logger.h meta.h net.h netutl.h node.h process.h	\
+	raw_socket_device.c route.c route.h subnet.c subnet.h tincd.c \
-	protocol.h route.h subnet.h bsd/tunemu.h
+	utils.c utils.h xalloc.h $(am__append_1) $(am__append_2) \
-
+	$(am__append_3) $(am__append_4) $(am__append_5) \
-tincd_LDADD = \
+	$(am__append_6) $(am__append_7) $(am__append_8) \
-	$(top_builddir)/lib/libvpn.a
+	$(am__append_9)
-
+AM_CPPFLAGS = -DCONFDIR=\"$(sysconfdir)\" -DRUNSTATEDIR=\"$(runstatedir)\" -DLOCALSTATEDIR=\"$(localstatedir)\" -I $(abs_top_builddir)/
-AM_CFLAGS = -DCONFDIR=\"$(sysconfdir)\" -DLOCALSTATEDIR=\"$(localstatedir)\"
 all: all-am
 
 .SUFFIXES:
 .SUFFIXES: .c .o .obj
-$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
 	@for dep in $?; do \
 	  case '$(am__configure_deps)' in \
 	    *$$dep*) \
@@ -315,22 +371,21 @@ $(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__confi
 	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu src/Makefile'; \
 	$(am__cd) $(top_srcdir) && \
 	  $(AUTOMAKE) --gnu src/Makefile
-.PRECIOUS: Makefile
 Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	@case '$?' in \
 	  *config.status*) \
 	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
 	  *) \
-	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
-	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
 	esac;
 
 $(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+$(top_srcdir)/configure:  $(am__configure_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
-$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 $(am__aclocal_m4_deps):
 install-sbinPROGRAMS: $(sbin_PROGRAMS)
@@ -376,74 +431,145 @@ uninstall-sbinPROGRAMS:
 clean-sbinPROGRAMS:
 	-test -z "$(sbin_PROGRAMS)" || rm -f $(sbin_PROGRAMS)
 
+installcheck-sbinPROGRAMS: $(sbin_PROGRAMS)
+	bad=0; pid=$$$$; list="$(sbin_PROGRAMS)"; for p in $$list; do \
+	  case ' $(AM_INSTALLCHECK_STD_OPTIONS_EXEMPT) ' in \
+	   *" $$p "* | *" $(srcdir)/$$p "*) continue;; \
+	  esac; \
+	  f=`echo "$$p" | \
+	     sed 's,^.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/'`; \
+	  for opt in --help --version; do \
+	    if "$(DESTDIR)$(sbindir)/$$f" $$opt >c$${pid}_.out \
+	         2>c$${pid}_.err </dev/null \
+		 && test -n "`cat c$${pid}_.out`" \
+		 && test -z "`cat c$${pid}_.err`"; then :; \
+	    else echo "$$f does not support $$opt" 1>&2; bad=1; fi; \
+	  done; \
+	done; rm -f c$${pid}_.???; exit $$bad
+linux/$(am__dirstamp):
+	@$(MKDIR_P) linux
+	@: > linux/$(am__dirstamp)
+linux/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) linux/$(DEPDIR)
+	@: > linux/$(DEPDIR)/$(am__dirstamp)
+linux/device.$(OBJEXT): linux/$(am__dirstamp) \
+	linux/$(DEPDIR)/$(am__dirstamp)
+bsd/$(am__dirstamp):
+	@$(MKDIR_P) bsd
+	@: > bsd/$(am__dirstamp)
+bsd/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) bsd/$(DEPDIR)
+	@: > bsd/$(DEPDIR)/$(am__dirstamp)
+bsd/device.$(OBJEXT): bsd/$(am__dirstamp) \
+	bsd/$(DEPDIR)/$(am__dirstamp)
+bsd/tunemu.$(OBJEXT): bsd/$(am__dirstamp) \
+	bsd/$(DEPDIR)/$(am__dirstamp)
+solaris/$(am__dirstamp):
+	@$(MKDIR_P) solaris
+	@: > solaris/$(am__dirstamp)
+solaris/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) solaris/$(DEPDIR)
+	@: > solaris/$(DEPDIR)/$(am__dirstamp)
+solaris/device.$(OBJEXT): solaris/$(am__dirstamp) \
+	solaris/$(DEPDIR)/$(am__dirstamp)
+mingw/$(am__dirstamp):
+	@$(MKDIR_P) mingw
+	@: > mingw/$(am__dirstamp)
+mingw/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) mingw/$(DEPDIR)
+	@: > mingw/$(DEPDIR)/$(am__dirstamp)
+mingw/device.$(OBJEXT): mingw/$(am__dirstamp) \
+	mingw/$(DEPDIR)/$(am__dirstamp)
+cygwin/$(am__dirstamp):
+	@$(MKDIR_P) cygwin
+	@: > cygwin/$(am__dirstamp)
+cygwin/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) cygwin/$(DEPDIR)
+	@: > cygwin/$(DEPDIR)/$(am__dirstamp)
+cygwin/device.$(OBJEXT): cygwin/$(am__dirstamp) \
+	cygwin/$(DEPDIR)/$(am__dirstamp)
+
 tincd$(EXEEXT): $(tincd_OBJECTS) $(tincd_DEPENDENCIES) $(EXTRA_tincd_DEPENDENCIES) 
 	@rm -f tincd$(EXEEXT)
 	$(AM_V_CCLD)$(LINK) $(tincd_OBJECTS) $(tincd_LDADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
+	-rm -f bsd/*.$(OBJEXT)
+	-rm -f cygwin/*.$(OBJEXT)
+	-rm -f linux/*.$(OBJEXT)
+	-rm -f mingw/*.$(OBJEXT)
+	-rm -f solaris/*.$(OBJEXT)
 
 distclean-compile:
 	-rm -f *.tab.c
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conf.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/avl_tree.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/connection.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conf.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/device.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/connection.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dummy_device.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dropin.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/edge.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dummy_device.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/event.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/edge.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/graph.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/event.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/logger.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/fake-getaddrinfo.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meta.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/fake-getnameinfo.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/multicast_device.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getopt.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/net.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getopt1.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/net_packet.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/graph.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/net_setup.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/list.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/net_socket.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/logger.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/netutl.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meta.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/node.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/multicast_device.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/process.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/net.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/protocol.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/net_packet.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/protocol_auth.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/net_setup.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/protocol_edge.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/net_socket.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/protocol_key.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/netutl.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/protocol_misc.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/node.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/protocol_subnet.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pidfile.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/raw_socket_device.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/process.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/route.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/protocol.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/subnet.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/protocol_auth.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tincd.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/protocol_edge.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tunemu.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/protocol_key.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/uml_device.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/protocol_misc.Po@am__quote@ # am--include-marker
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/vde_device.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/protocol_subnet.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/proxy.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/raw_socket_device.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/route.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/subnet.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tincd.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/uml_device.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/utils.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/vde_device.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@bsd/$(DEPDIR)/device.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@bsd/$(DEPDIR)/tunemu.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@cygwin/$(DEPDIR)/device.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@linux/$(DEPDIR)/device.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@mingw/$(DEPDIR)/device.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@solaris/$(DEPDIR)/device.Po@am__quote@ # am--include-marker
+
+$(am__depfiles_remade):
+	@$(MKDIR_P) $(@D)
+	@echo '# dummy' >$@-t && $(am__mv) $@-t $@
+
+am--depfiles: $(am__depfiles_remade)
 
 .c.o:
-@am__fastdepCC_TRUE@	$(AM_V_CC)$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
-@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c $<
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ $<
 
 .c.obj:
-@am__fastdepCC_TRUE@	$(AM_V_CC)$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
-@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c `$(CYGPATH_W) '$<'`
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
-
-tunemu.o: bsd/tunemu.c
-@am__fastdepCC_TRUE@	$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT tunemu.o -MD -MP -MF $(DEPDIR)/tunemu.Tpo -c -o tunemu.o `test -f 'bsd/tunemu.c' || echo '$(srcdir)/'`bsd/tunemu.c
-@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/tunemu.Tpo $(DEPDIR)/tunemu.Po
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='bsd/tunemu.c' object='tunemu.o' libtool=no @AMDEPBACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o tunemu.o `test -f 'bsd/tunemu.c' || echo '$(srcdir)/'`bsd/tunemu.c
-
-tunemu.obj: bsd/tunemu.c
-@am__fastdepCC_TRUE@	$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT tunemu.obj -MD -MP -MF $(DEPDIR)/tunemu.Tpo -c -o tunemu.obj `if test -f 'bsd/tunemu.c'; then $(CYGPATH_W) 'bsd/tunemu.c'; else $(CYGPATH_W) '$(srcdir)/bsd/tunemu.c'; fi`
-@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/tunemu.Tpo $(DEPDIR)/tunemu.Po
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='bsd/tunemu.c' object='tunemu.obj' libtool=no @AMDEPBACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o tunemu.obj `if test -f 'bsd/tunemu.c'; then $(CYGPATH_W) 'bsd/tunemu.c'; else $(CYGPATH_W) '$(srcdir)/bsd/tunemu.c'; fi`
 
 ID: $(am__tagged_files)
 	$(am__define_uniq_tagged_files); mkid -fID $$unique
@@ -497,7 +623,10 @@ cscopelist-am: $(am__tagged_files)
 distclean-tags:
 	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
 
-distdir: $(DISTFILES)
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
 	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
 	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
 	list='$(DISTFILES)'; \
@@ -527,12 +656,9 @@ distdir: $(DISTFILES)
 	    || exit 1; \
 	  fi; \
 	done
-	$(MAKE) $(AM_MAKEFLAGS) \
-	  top_distdir="$(top_distdir)" distdir="$(distdir)" \
-	  dist-hook
 check-am: all-am
 check: check-am
-all-am: Makefile $(PROGRAMS) $(HEADERS)
+all-am: Makefile $(PROGRAMS)
 installdirs:
 	for dir in "$(DESTDIR)$(sbindir)"; do \
 	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
@@ -563,6 +689,16 @@ clean-generic:
 distclean-generic:
 	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
 	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+	-rm -f bsd/$(DEPDIR)/$(am__dirstamp)
+	-rm -f bsd/$(am__dirstamp)
+	-rm -f cygwin/$(DEPDIR)/$(am__dirstamp)
+	-rm -f cygwin/$(am__dirstamp)
+	-rm -f linux/$(DEPDIR)/$(am__dirstamp)
+	-rm -f linux/$(am__dirstamp)
+	-rm -f mingw/$(DEPDIR)/$(am__dirstamp)
+	-rm -f mingw/$(am__dirstamp)
+	-rm -f solaris/$(DEPDIR)/$(am__dirstamp)
+	-rm -f solaris/$(am__dirstamp)
 
 maintainer-clean-generic:
 	@echo "This command is intended for maintainers to use"
@@ -572,7 +708,50 @@ clean: clean-am
 clean-am: clean-generic clean-sbinPROGRAMS mostlyclean-am
 
 distclean: distclean-am
-	-rm -rf ./$(DEPDIR)
+		-rm -f ./$(DEPDIR)/avl_tree.Po
+	-rm -f ./$(DEPDIR)/conf.Po
+	-rm -f ./$(DEPDIR)/connection.Po
+	-rm -f ./$(DEPDIR)/dropin.Po
+	-rm -f ./$(DEPDIR)/dummy_device.Po
+	-rm -f ./$(DEPDIR)/edge.Po
+	-rm -f ./$(DEPDIR)/event.Po
+	-rm -f ./$(DEPDIR)/fake-getaddrinfo.Po
+	-rm -f ./$(DEPDIR)/fake-getnameinfo.Po
+	-rm -f ./$(DEPDIR)/getopt.Po
+	-rm -f ./$(DEPDIR)/getopt1.Po
+	-rm -f ./$(DEPDIR)/graph.Po
+	-rm -f ./$(DEPDIR)/list.Po
+	-rm -f ./$(DEPDIR)/logger.Po
+	-rm -f ./$(DEPDIR)/meta.Po
+	-rm -f ./$(DEPDIR)/multicast_device.Po
+	-rm -f ./$(DEPDIR)/net.Po
+	-rm -f ./$(DEPDIR)/net_packet.Po
+	-rm -f ./$(DEPDIR)/net_setup.Po
+	-rm -f ./$(DEPDIR)/net_socket.Po
+	-rm -f ./$(DEPDIR)/netutl.Po
+	-rm -f ./$(DEPDIR)/node.Po
+	-rm -f ./$(DEPDIR)/pidfile.Po
+	-rm -f ./$(DEPDIR)/process.Po
+	-rm -f ./$(DEPDIR)/protocol.Po
+	-rm -f ./$(DEPDIR)/protocol_auth.Po
+	-rm -f ./$(DEPDIR)/protocol_edge.Po
+	-rm -f ./$(DEPDIR)/protocol_key.Po
+	-rm -f ./$(DEPDIR)/protocol_misc.Po
+	-rm -f ./$(DEPDIR)/protocol_subnet.Po
+	-rm -f ./$(DEPDIR)/proxy.Po
+	-rm -f ./$(DEPDIR)/raw_socket_device.Po
+	-rm -f ./$(DEPDIR)/route.Po
+	-rm -f ./$(DEPDIR)/subnet.Po
+	-rm -f ./$(DEPDIR)/tincd.Po
+	-rm -f ./$(DEPDIR)/uml_device.Po
+	-rm -f ./$(DEPDIR)/utils.Po
+	-rm -f ./$(DEPDIR)/vde_device.Po
+	-rm -f bsd/$(DEPDIR)/device.Po
+	-rm -f bsd/$(DEPDIR)/tunemu.Po
+	-rm -f cygwin/$(DEPDIR)/device.Po
+	-rm -f linux/$(DEPDIR)/device.Po
+	-rm -f mingw/$(DEPDIR)/device.Po
+	-rm -f solaris/$(DEPDIR)/device.Po
 	-rm -f Makefile
 distclean-am: clean-am distclean-compile distclean-generic \
 	distclean-tags
@@ -615,10 +794,53 @@ install-ps: install-ps-am
 
 install-ps-am:
 
-installcheck-am:
+installcheck-am: installcheck-sbinPROGRAMS
 
 maintainer-clean: maintainer-clean-am
-	-rm -rf ./$(DEPDIR)
+		-rm -f ./$(DEPDIR)/avl_tree.Po
+	-rm -f ./$(DEPDIR)/conf.Po
+	-rm -f ./$(DEPDIR)/connection.Po
+	-rm -f ./$(DEPDIR)/dropin.Po
+	-rm -f ./$(DEPDIR)/dummy_device.Po
+	-rm -f ./$(DEPDIR)/edge.Po
+	-rm -f ./$(DEPDIR)/event.Po
+	-rm -f ./$(DEPDIR)/fake-getaddrinfo.Po
+	-rm -f ./$(DEPDIR)/fake-getnameinfo.Po
+	-rm -f ./$(DEPDIR)/getopt.Po
+	-rm -f ./$(DEPDIR)/getopt1.Po
+	-rm -f ./$(DEPDIR)/graph.Po
+	-rm -f ./$(DEPDIR)/list.Po
+	-rm -f ./$(DEPDIR)/logger.Po
+	-rm -f ./$(DEPDIR)/meta.Po
+	-rm -f ./$(DEPDIR)/multicast_device.Po
+	-rm -f ./$(DEPDIR)/net.Po
+	-rm -f ./$(DEPDIR)/net_packet.Po
+	-rm -f ./$(DEPDIR)/net_setup.Po
+	-rm -f ./$(DEPDIR)/net_socket.Po
+	-rm -f ./$(DEPDIR)/netutl.Po
+	-rm -f ./$(DEPDIR)/node.Po
+	-rm -f ./$(DEPDIR)/pidfile.Po
+	-rm -f ./$(DEPDIR)/process.Po
+	-rm -f ./$(DEPDIR)/protocol.Po
+	-rm -f ./$(DEPDIR)/protocol_auth.Po
+	-rm -f ./$(DEPDIR)/protocol_edge.Po
+	-rm -f ./$(DEPDIR)/protocol_key.Po
+	-rm -f ./$(DEPDIR)/protocol_misc.Po
+	-rm -f ./$(DEPDIR)/protocol_subnet.Po
+	-rm -f ./$(DEPDIR)/proxy.Po
+	-rm -f ./$(DEPDIR)/raw_socket_device.Po
+	-rm -f ./$(DEPDIR)/route.Po
+	-rm -f ./$(DEPDIR)/subnet.Po
+	-rm -f ./$(DEPDIR)/tincd.Po
+	-rm -f ./$(DEPDIR)/uml_device.Po
+	-rm -f ./$(DEPDIR)/utils.Po
+	-rm -f ./$(DEPDIR)/vde_device.Po
+	-rm -f bsd/$(DEPDIR)/device.Po
+	-rm -f bsd/$(DEPDIR)/tunemu.Po
+	-rm -f cygwin/$(DEPDIR)/device.Po
+	-rm -f linux/$(DEPDIR)/device.Po
+	-rm -f mingw/$(DEPDIR)/device.Po
+	-rm -f solaris/$(DEPDIR)/device.Po
 	-rm -f Makefile
 maintainer-clean-am: distclean-am maintainer-clean-generic
 
@@ -638,8 +860,8 @@ uninstall-am: uninstall-sbinPROGRAMS
 
 .MAKE: install-am install-strip
 
-.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
-	clean-sbinPROGRAMS cscopelist-am ctags ctags-am dist-hook \
+	clean-generic clean-sbinPROGRAMS cscopelist-am ctags ctags-am \
 	distclean distclean-compile distclean-generic distclean-tags \
 	distdir dvi dvi-am html html-am info info-am install \
 	install-am install-data install-data-am install-dvi \
@@ -647,14 +869,13 @@ uninstall-am: uninstall-sbinPROGRAMS
 	install-html-am install-info install-info-am install-man \
 	install-pdf install-pdf-am install-ps install-ps-am \
 	install-sbinPROGRAMS install-strip installcheck \
-	installcheck-am installdirs maintainer-clean \
+	installcheck-am installcheck-sbinPROGRAMS installdirs \
-	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	maintainer-clean maintainer-clean-generic mostlyclean \
-	mostlyclean-generic pdf pdf-am ps ps-am tags tags-am uninstall \
+	mostlyclean-compile mostlyclean-generic pdf pdf-am ps ps-am \
-	uninstall-am uninstall-sbinPROGRAMS
+	tags tags-am uninstall uninstall-am uninstall-sbinPROGRAMS
 
+.PRECIOUS: Makefile
 
-dist-hook:
-	rm -f `find . -type l`
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.

src/avl_tree.c

@@ -2,7 +2,7 @@
     avl_tree.c -- avl_ tree and linked list convenience
     Copyright (C) 1998 Michael H. Buselli
                   2000-2005 Ivo Timmermans,
-                  2000-2006 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2015 Guus Sliepen <guus@tinc-vpn.org>
                   2000-2005 Wessel Dankers <wsl@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
@@ -26,7 +26,7 @@
     the code. Mail me if you found a bug.
 
     Cleaned up and incorporated some of the ideas from the red-black tree
-    library for inclusion into tinc (http://www.tinc-vpn.org/) by
+    library for inclusion into tinc (https://www.tinc-vpn.org/) by
     Guus Sliepen <guus@tinc-vpn.org>.
 */
 
@@ -50,14 +50,14 @@
 #endif
 
 #ifndef AVL_DEPTH
-static int lg(unsigned int u) __attribute__ ((__const__));
+static int lg(unsigned int u) __attribute__((__const__));
 
-static int lg(unsigned int u)
+static int lg(unsigned int u) {
-{
 	int r = 1;
 
-	if(!u)
+	if(!u) {
 		return 0;
+	}
 
 	if(u & 0xffff0000) {
 		u >>= 16;
@@ -79,8 +79,9 @@ static int lg(unsigned int u)
 		r += 2;
 	}
 
-	if(u & 0x00000002)
+	if(u & 0x00000002) {
 		r++;
+	}
 
 	return r;
 }
@@ -88,8 +89,7 @@ static int lg(unsigned int u)
 
 /* Internal helper functions */
 
-static int avl_check_balance(const avl_node_t *node)
+static int avl_check_balance(const avl_node_t *node) {
-{
 #ifdef AVL_DEPTH
 	int d;
 
@@ -97,171 +97,185 @@ static int avl_check_balance(const avl_node_t *node)
 
 	return d < -1 ? -1 : d > 1 ? 1 : 0;
 #else
-/*      int d;
+	/*      int d;
- *      d = lg(AVL_R_COUNT(node)) - lg(AVL_L_COUNT(node));
+	 *      d = lg(AVL_R_COUNT(node)) - lg(AVL_L_COUNT(node));
- *      d = d<-1?-1:d>1?1:0;
+	 *      d = d<-1?-1:d>1?1:0;
- */
+	 */
 	int pl, r;
 
 	pl = lg(AVL_L_COUNT(node));
 	r = AVL_R_COUNT(node);
 
-	if(r >> pl + 1)
+	if(r >> pl + 1) {
 		return 1;
+	}
 
-	if(pl < 2 || r >> pl - 2)
+	if(pl < 2 || r >> pl - 2) {
 		return 0;
+	}
 
 	return -1;
 #endif
 }
 
-static void avl_rebalance(avl_tree_t *tree, avl_node_t *node)
+static void avl_rebalance(avl_tree_t *tree, avl_node_t *node) {
-{
 	avl_node_t *child;
 	avl_node_t *gchild;
 	avl_node_t *parent;
 	avl_node_t **superparent;
 
-	parent = node;
-
 	while(node) {
 		parent = node->parent;
 
 		superparent =
-			parent ? node ==
+		        parent ? node ==
-			parent->left ? &parent->left : &parent->right : &tree->root;
+		        parent->left ? &parent->left : &parent->right : &tree->root;
 
-		switch (avl_check_balance(node)) {
+		switch(avl_check_balance(node)) {
-			case -1:
+		case -1:
-				child = node->left;
+			child = node->left;
 #ifdef AVL_DEPTH
-				if(L_AVL_DEPTH(child) >= R_AVL_DEPTH(child)) {
+
+			if(L_AVL_DEPTH(child) >= R_AVL_DEPTH(child)) {
 #else
-				if(AVL_L_COUNT(child) >= AVL_R_COUNT(child)) {
+
+			if(AVL_L_COUNT(child) >= AVL_R_COUNT(child)) {
 #endif
-					node->left = child->right;
+				node->left = child->right;
-					if(node->left)
-						node->left->parent = node;
 
-					child->right = node;
+				if(node->left) {
-					node->parent = child;
+					node->left->parent = node;
-					*superparent = child;
-					child->parent = parent;
-#ifdef AVL_COUNT
-					node->count = AVL_CALC_COUNT(node);
-					child->count = AVL_CALC_COUNT(child);
-#endif
-#ifdef AVL_DEPTH
-					node->depth = AVL_CALC_DEPTH(node);
-					child->depth = AVL_CALC_DEPTH(child);
-#endif
-				} else {
-					gchild = child->right;
-					node->left = gchild->right;
-
-					if(node->left)
-						node->left->parent = node;
-					child->right = gchild->left;
-
-					if(child->right)
-						child->right->parent = child;
-					gchild->right = node;
-
-					if(gchild->right)
-						gchild->right->parent = gchild;
-					gchild->left = child;
-
-					if(gchild->left)
-						gchild->left->parent = gchild;
-					*superparent = gchild;
-
-					gchild->parent = parent;
-#ifdef AVL_COUNT
-					node->count = AVL_CALC_COUNT(node);
-					child->count = AVL_CALC_COUNT(child);
-					gchild->count = AVL_CALC_COUNT(gchild);
-#endif
-#ifdef AVL_DEPTH
-					node->depth = AVL_CALC_DEPTH(node);
-					child->depth = AVL_CALC_DEPTH(child);
-					gchild->depth = AVL_CALC_DEPTH(gchild);
-#endif
 				}
-				break;
 
-			case 1:
+				child->right = node;
-				child = node->right;
+				node->parent = child;
-#ifdef AVL_DEPTH
+				*superparent = child;
-				if(R_AVL_DEPTH(child) >= L_AVL_DEPTH(child)) {
+				child->parent = parent;
-#else
-				if(AVL_R_COUNT(child) >= AVL_L_COUNT(child)) {
-#endif
-					node->right = child->left;
-					if(node->right)
-						node->right->parent = node;
-					child->left = node;
-					node->parent = child;
-					*superparent = child;
-					child->parent = parent;
-#ifdef AVL_COUNT
-					node->count = AVL_CALC_COUNT(node);
-					child->count = AVL_CALC_COUNT(child);
-#endif
-#ifdef AVL_DEPTH
-					node->depth = AVL_CALC_DEPTH(node);
-					child->depth = AVL_CALC_DEPTH(child);
-#endif
-				} else {
-					gchild = child->left;
-					node->right = gchild->left;
-
-					if(node->right)
-						node->right->parent = node;
-					child->left = gchild->right;
-
-					if(child->left)
-						child->left->parent = child;
-					gchild->left = node;
-
-					if(gchild->left)
-						gchild->left->parent = gchild;
-					gchild->right = child;
-
-					if(gchild->right)
-						gchild->right->parent = gchild;
-
-					*superparent = gchild;
-					gchild->parent = parent;
-#ifdef AVL_COUNT
-					node->count = AVL_CALC_COUNT(node);
-					child->count = AVL_CALC_COUNT(child);
-					gchild->count = AVL_CALC_COUNT(gchild);
-#endif
-#ifdef AVL_DEPTH
-					node->depth = AVL_CALC_DEPTH(node);
-					child->depth = AVL_CALC_DEPTH(child);
-					gchild->depth = AVL_CALC_DEPTH(gchild);
-#endif
-				}
-				break;
-
-			default:
 #ifdef AVL_COUNT
 				node->count = AVL_CALC_COUNT(node);
+				child->count = AVL_CALC_COUNT(child);
 #endif
 #ifdef AVL_DEPTH
 				node->depth = AVL_CALC_DEPTH(node);
+				child->depth = AVL_CALC_DEPTH(child);
+#endif
+			} else {
+				gchild = child->right;
+				node->left = gchild->right;
+
+				if(node->left) {
+					node->left->parent = node;
+				}
+
+				child->right = gchild->left;
+
+				if(child->right) {
+					child->right->parent = child;
+				}
+
+				gchild->right = node;
+
+				gchild->right->parent = gchild;
+				gchild->left = child;
+
+				gchild->left->parent = gchild;
+
+				*superparent = gchild;
+				gchild->parent = parent;
+#ifdef AVL_COUNT
+				node->count = AVL_CALC_COUNT(node);
+				child->count = AVL_CALC_COUNT(child);
+				gchild->count = AVL_CALC_COUNT(gchild);
+#endif
+#ifdef AVL_DEPTH
+				node->depth = AVL_CALC_DEPTH(node);
+				child->depth = AVL_CALC_DEPTH(child);
+				gchild->depth = AVL_CALC_DEPTH(gchild);
+#endif
+			}
+
+			break;
+
+		case 1:
+			child = node->right;
+#ifdef AVL_DEPTH
+
+			if(R_AVL_DEPTH(child) >= L_AVL_DEPTH(child)) {
+#else
+
+			if(AVL_R_COUNT(child) >= AVL_L_COUNT(child)) {
+#endif
+				node->right = child->left;
+
+				if(node->right) {
+					node->right->parent = node;
+				}
+
+				child->left = node;
+				node->parent = child;
+				*superparent = child;
+				child->parent = parent;
+#ifdef AVL_COUNT
+				node->count = AVL_CALC_COUNT(node);
+				child->count = AVL_CALC_COUNT(child);
+#endif
+#ifdef AVL_DEPTH
+				node->depth = AVL_CALC_DEPTH(node);
+				child->depth = AVL_CALC_DEPTH(child);
+#endif
+			} else {
+				gchild = child->left;
+				node->right = gchild->left;
+
+				if(node->right) {
+					node->right->parent = node;
+				}
+
+				child->left = gchild->right;
+
+				if(child->left) {
+					child->left->parent = child;
+				}
+
+				gchild->left = node;
+
+				gchild->left->parent = gchild;
+				gchild->right = child;
+
+				gchild->right->parent = gchild;
+
+				*superparent = gchild;
+				gchild->parent = parent;
+#ifdef AVL_COUNT
+				node->count = AVL_CALC_COUNT(node);
+				child->count = AVL_CALC_COUNT(child);
+				gchild->count = AVL_CALC_COUNT(gchild);
+#endif
+#ifdef AVL_DEPTH
+				node->depth = AVL_CALC_DEPTH(node);
+				child->depth = AVL_CALC_DEPTH(child);
+				gchild->depth = AVL_CALC_DEPTH(gchild);
+#endif
+			}
+
+			break;
+
+		default:
+#ifdef AVL_COUNT
+			node->count = AVL_CALC_COUNT(node);
+#endif
+#ifdef AVL_DEPTH
+			node->depth = AVL_CALC_DEPTH(node);
 #endif
 		}
+
 		node = parent;
 	}
 }
 
 /* (De)constructors */
 
-avl_tree_t *avl_alloc_tree(avl_compare_t compare, avl_action_t delete)
+avl_tree_t *avl_alloc_tree(avl_compare_t compare, avl_action_t delete) {
-{
 	avl_tree_t *tree;
 
 	tree = xmalloc_and_zero(sizeof(avl_tree_t));
@@ -271,28 +285,25 @@ avl_tree_t *avl_alloc_tree(avl_compare_t compare, avl_action_t delete)
 	return tree;
 }
 
-void avl_free_tree(avl_tree_t *tree)
+void avl_free_tree(avl_tree_t *tree) {
-{
 	free(tree);
 }
 
-avl_node_t *avl_alloc_node(void)
+avl_node_t *avl_alloc_node(void) {
-{
 	return xmalloc_and_zero(sizeof(avl_node_t));
 }
 
-void avl_free_node(avl_tree_t *tree, avl_node_t *node)
+void avl_free_node(avl_tree_t *tree, avl_node_t *node) {
-{
+	if(node->data && tree->delete) {
-	if(node->data && tree->delete)
 		tree->delete(node->data);
+	}
 
 	free(node);
 }
 
 /* Searching */
 
-void *avl_search(const avl_tree_t *tree, const void *data)
+void *avl_search(const avl_tree_t *tree, const void *data) {
-{
 	avl_node_t *node;
 
 	node = avl_search_node(tree, data);
@@ -300,8 +311,7 @@ void *avl_search(const avl_tree_t *tree, const void *data)
 	return node ? node->data : NULL;
 }
 
-void *avl_search_closest(const avl_tree_t *tree, const void *data, int *result)
+void *avl_search_closest(const avl_tree_t *tree, const void *data, int *result) {
-{
 	avl_node_t *node;
 
 	node = avl_search_closest_node(tree, data, result);
@@ -309,8 +319,7 @@ void *avl_search_closest(const avl_tree_t *tree, const void *data, int *result)
 	return node ? node->data : NULL;
 }
 
-void *avl_search_closest_smaller(const avl_tree_t *tree, const void *data)
+void *avl_search_closest_smaller(const avl_tree_t *tree, const void *data) {
-{
 	avl_node_t *node;
 
 	node = avl_search_closest_smaller_node(tree, data);
@@ -318,8 +327,7 @@ void *avl_search_closest_smaller(const avl_tree_t *tree, const void *data)
 	return node ? node->data : NULL;
 }
 
-void *avl_search_closest_greater(const avl_tree_t *tree, const void *data)
+void *avl_search_closest_greater(const avl_tree_t *tree, const void *data) {
-{
 	avl_node_t *node;
 
 	node = avl_search_closest_greater_node(tree, data);
@@ -327,8 +335,7 @@ void *avl_search_closest_greater(const avl_tree_t *tree, const void *data)
 	return node ? node->data : NULL;
 }
 
-avl_node_t *avl_search_node(const avl_tree_t *tree, const void *data)
+avl_node_t *avl_search_node(const avl_tree_t *tree, const void *data) {
-{
 	avl_node_t *node;
 	int result;
 
@@ -338,16 +345,17 @@ avl_node_t *avl_search_node(const avl_tree_t *tree, const void *data)
 }
 
 avl_node_t *avl_search_closest_node(const avl_tree_t *tree, const void *data,
-									int *result)
+                                    int *result) {
-{
 	avl_node_t *node;
 	int c;
 
 	node = tree->root;
 
 	if(!node) {
-		if(result)
+		if(result) {
 			*result = 0;
+		}
+
 		return NULL;
 	}
 
@@ -355,24 +363,30 @@ avl_node_t *avl_search_closest_node(const avl_tree_t *tree, const void *data,
 		c = tree->compare(data, node->data);
 
 		if(c < 0) {
-			if(node->left)
+			if(node->left) {
 				node = node->left;
-			else {
+			} else {
-				if(result)
+				if(result) {
 					*result = -1;
+				}
+
 				break;
 			}
 		} else if(c > 0) {
-			if(node->right)
+			if(node->right) {
 				node = node->right;
-			else {
+			} else {
-				if(result)
+				if(result) {
 					*result = 1;
+				}
+
 				break;
 			}
 		} else {
-			if(result)
+			if(result) {
 				*result = 0;
+			}
+
 			break;
 		}
 	}
@@ -381,37 +395,36 @@ avl_node_t *avl_search_closest_node(const avl_tree_t *tree, const void *data,
 }
 
 avl_node_t *avl_search_closest_smaller_node(const avl_tree_t *tree,
-											const void *data)
+                const void *data) {
-{
 	avl_node_t *node;
 	int result;
 
 	node = avl_search_closest_node(tree, data, &result);
 
-	if(result < 0)
+	if(result < 0) {
 		node = node->prev;
+	}
 
 	return node;
 }
 
 avl_node_t *avl_search_closest_greater_node(const avl_tree_t *tree,
-											const void *data)
+                const void *data) {
-{
 	avl_node_t *node;
 	int result;
 
 	node = avl_search_closest_node(tree, data, &result);
 
-	if(result > 0)
+	if(result > 0) {
 		node = node->next;
+	}
 
 	return node;
 }
 
 /* Insertion and deletion */
 
-avl_node_t *avl_insert(avl_tree_t *tree, void *data)
+avl_node_t *avl_insert(avl_tree_t *tree, void *data) {
-{
 	avl_node_t *closest, *new;
 	int result;
 
@@ -422,21 +435,21 @@ avl_node_t *avl_insert(avl_tree_t *tree, void *data)
 	} else {
 		closest = avl_search_closest_node(tree, data, &result);
 
-		switch (result) {
+		switch(result) {
-			case -1:
+		case -1:
-				new = avl_alloc_node();
+			new = avl_alloc_node();
-				new->data = data;
+			new->data = data;
-				avl_insert_before(tree, closest, new);
+			avl_insert_before(tree, closest, new);
-				break;
+			break;
 
-			case 1:
+		case 1:
-				new = avl_alloc_node();
+			new = avl_alloc_node();
-				new->data = data;
+			new->data = data;
-				avl_insert_after(tree, closest, new);
+			avl_insert_after(tree, closest, new);
-				break;
+			break;
 
-			default:
+		default:
-				return NULL;
+			return NULL;
 		}
 	}
 
@@ -450,27 +463,26 @@ avl_node_t *avl_insert(avl_tree_t *tree, void *data)
 	return new;
 }
 
-avl_node_t *avl_insert_node(avl_tree_t *tree, avl_node_t *node)
+avl_node_t *avl_insert_node(avl_tree_t *tree, avl_node_t *node) {
-{
 	avl_node_t *closest;
 	int result;
 
-	if(!tree->root)
+	if(!tree->root) {
 		avl_insert_top(tree, node);
-	else {
+	} else {
 		closest = avl_search_closest_node(tree, node->data, &result);
 
-		switch (result) {
+		switch(result) {
-			case -1:
+		case -1:
-				avl_insert_before(tree, closest, node);
+			avl_insert_before(tree, closest, node);
-				break;
+			break;
 
-			case 1:
+		case 1:
-				avl_insert_after(tree, closest, node);
+			avl_insert_after(tree, closest, node);
-				break;
+			break;
 
-			case 0:
+		case 0:
-				return NULL;
+			return NULL;
 		}
 	}
 
@@ -484,20 +496,20 @@ avl_node_t *avl_insert_node(avl_tree_t *tree, avl_node_t *node)
 	return node;
 }
 
-void avl_insert_top(avl_tree_t *tree, avl_node_t *node)
+void avl_insert_top(avl_tree_t *tree, avl_node_t *node) {
-{
 	node->prev = node->next = node->parent = NULL;
 	tree->head = tree->tail = tree->root = node;
 }
 
 void avl_insert_before(avl_tree_t *tree, avl_node_t *before,
-					   avl_node_t *node)
+                       avl_node_t *node) {
-{
 	if(!before) {
-		if(tree->tail)
+		if(tree->tail) {
 			avl_insert_after(tree, tree->tail, node);
-		else
+		} else {
 			avl_insert_top(tree, node);
+		}
+
 		return;
 	}
 
@@ -510,10 +522,11 @@ void avl_insert_before(avl_tree_t *tree, avl_node_t *before,
 		return;
 	}
 
-	if(before->prev)
+	if(before->prev) {
 		before->prev->next = node;
-	else
+	} else {
 		tree->head = node;
+	}
 
 	before->prev = node;
 	before->left = node;
@@ -521,13 +534,14 @@ void avl_insert_before(avl_tree_t *tree, avl_node_t *before,
 	avl_rebalance(tree, before);
 }
 
-void avl_insert_after(avl_tree_t *tree, avl_node_t *after, avl_node_t *node)
+void avl_insert_after(avl_tree_t *tree, avl_node_t *after, avl_node_t *node) {
-{
 	if(!after) {
-		if(tree->head)
+		if(tree->head) {
 			avl_insert_before(tree, tree->head, node);
-		else
+		} else {
 			avl_insert_top(tree, node);
+		}
+
 		return;
 	}
 
@@ -540,10 +554,11 @@ void avl_insert_after(avl_tree_t *tree, avl_node_t *after, avl_node_t *node)
 	node->parent = after;
 	node->next = after->next;
 
-	if(after->next)
+	if(after->next) {
 		after->next->prev = node;
-	else
+	} else {
 		tree->tail = node;
+	}
 
 	after->next = node;
 	after->right = node;
@@ -551,47 +566,51 @@ void avl_insert_after(avl_tree_t *tree, avl_node_t *after, avl_node_t *node)
 	avl_rebalance(tree, after);
 }
 
-avl_node_t *avl_unlink(avl_tree_t *tree, void *data)
+avl_node_t *avl_unlink(avl_tree_t *tree, void *data) {
-{
 	avl_node_t *node;
 
 	node = avl_search_node(tree, data);
 
-	if(node)
+	if(node) {
 		avl_unlink_node(tree, node);
+	}
 
 	return node;
 }
 
-void avl_unlink_node(avl_tree_t *tree, avl_node_t *node)
+void avl_unlink_node(avl_tree_t *tree, avl_node_t *node) {
-{
 	avl_node_t *parent;
 	avl_node_t **superparent;
 	avl_node_t *subst, *left, *right;
 	avl_node_t *balnode;
 
-	if(node->prev)
+	if(node->prev) {
 		node->prev->next = node->next;
-	else
+	} else {
 		tree->head = node->next;
-	if(node->next)
+	}
+
+	if(node->next) {
 		node->next->prev = node->prev;
-	else
+	} else {
 		tree->tail = node->prev;
+	}
 
 	parent = node->parent;
 
 	superparent =
-		parent ? node ==
+	        parent ? node ==
-		parent->left ? &parent->left : &parent->right : &tree->root;
+	        parent->left ? &parent->left : &parent->right : &tree->root;
 
 	left = node->left;
 	right = node->right;
+
 	if(!left) {
 		*superparent = right;
 
-		if(right)
+		if(right) {
 			right->parent = parent;
+		}
 
 		balnode = parent;
 	} else if(!right) {
@@ -601,14 +620,19 @@ void avl_unlink_node(avl_tree_t *tree, avl_node_t *node)
 	} else {
 		subst = node->prev;
 
+		if(!subst) { // This only happens if node is not actually in a tree at all.
+			abort();
+		}
+
 		if(subst == left) {
 			balnode = subst;
 		} else {
 			balnode = subst->parent;
 			balnode->right = subst->left;
 
-			if(balnode->right)
+			if(balnode->right) {
 				balnode->right->parent = balnode;
+			}
 
 			subst->left = left;
 			left->parent = subst;
@@ -632,26 +656,24 @@ void avl_unlink_node(avl_tree_t *tree, avl_node_t *node)
 #endif
 }
 
-void avl_delete_node(avl_tree_t *tree, avl_node_t *node)
+void avl_delete_node(avl_tree_t *tree, avl_node_t *node) {
-{
 	avl_unlink_node(tree, node);
 	avl_free_node(tree, node);
 }
 
-void avl_delete(avl_tree_t *tree, void *data)
+void avl_delete(avl_tree_t *tree, void *data) {
-{
 	avl_node_t *node;
 
 	node = avl_search_node(tree, data);
 
-	if(node)
+	if(node) {
 		avl_delete_node(tree, node);
+	}
 }
 
 /* Fast tree cleanup */
 
-void avl_delete_tree(avl_tree_t *tree)
+void avl_delete_tree(avl_tree_t *tree) {
-{
 	avl_node_t *node, *next;
 
 	for(node = tree->head; node; node = next) {
@@ -664,8 +686,7 @@ void avl_delete_tree(avl_tree_t *tree)
 
 /* Tree walking */
 
-void avl_foreach(const avl_tree_t *tree, avl_action_t action)
+void avl_foreach(const avl_tree_t *tree, avl_action_t action) {
-{
 	avl_node_t *node, *next;
 
 	for(node = tree->head; node; node = next) {
@@ -674,8 +695,7 @@ void avl_foreach(const avl_tree_t *tree, avl_action_t action)
 	}
 }
 
-void avl_foreach_node(const avl_tree_t *tree, avl_action_t action)
+void avl_foreach_node(const avl_tree_t *tree, avl_action_t action) {
-{
 	avl_node_t *node, *next;
 
 	for(node = tree->head; node; node = next) {
@@ -687,13 +707,11 @@ void avl_foreach_node(const avl_tree_t *tree, avl_action_t action)
 /* Indexing */
 
 #ifdef AVL_COUNT
-unsigned int avl_count(const avl_tree_t *tree)
+unsigned int avl_count(const avl_tree_t *tree) {
-{
 	return AVL_NODE_COUNT(tree->root);
 }
 
-avl_node_t *avl_get_node(const avl_tree_t *tree, unsigned int index)
+avl_node_t *avl_get_node(const avl_tree_t *tree, unsigned int index) {
-{
 	avl_node_t *node;
 	unsigned int c;
 
@@ -715,16 +733,17 @@ avl_node_t *avl_get_node(const avl_tree_t *tree, unsigned int index)
 	return NULL;
 }
 
-unsigned int avl_index(const avl_node_t *node)
+unsigned int avl_index(const avl_node_t *node) {
-{
 	avl_node_t *next;
 	unsigned int index;
 
 	index = AVL_L_COUNT(node);
 
 	while((next = node->parent)) {
-		if(node == next->right)
+		if(node == next->right) {
 			index += AVL_L_COUNT(next) + 1;
+		}
+
 		node = next;
 	}
 
@@ -732,8 +751,7 @@ unsigned int avl_index(const avl_node_t *node)
 }
 #endif
 #ifdef AVL_DEPTH
-unsigned int avl_depth(const avl_tree_t *tree)
+unsigned int avl_depth(const avl_tree_t *tree) {
-{
 	return AVL_NODE_DEPTH(tree->root);
 }
 #endif

src/avl_tree.h

@@ -1,3 +1,6 @@
+#ifndef TINC_AVL_TREE_H
+#define TINC_AVL_TREE_H
+
 /*
     avl_tree.h -- header file for avl_tree.c
     Copyright (C) 1998 Michael H. Buselli
@@ -26,14 +29,10 @@
     the code. Mail me if you found a bug.
 
     Cleaned up and incorporated some of the ideas from the red-black tree
-    library for inclusion into tinc (http://www.tinc-vpn.org/) by
+    library for inclusion into tinc (https://www.tinc-vpn.org/) by
     Guus Sliepen <guus@tinc-vpn.org>.
 */
 
-
-#ifndef __AVL_TREE_H__
-#define __AVL_TREE_H__
-
 #ifndef AVL_DEPTH
 #ifndef AVL_COUNT
 #define AVL_DEPTH
@@ -66,9 +65,9 @@ typedef struct avl_node_t {
 
 } avl_node_t;
 
-typedef int (*avl_compare_t)(const void *, const void *);
+typedef int (*avl_compare_t)(const void *data1, const void *data2);
-typedef void (*avl_action_t)(const void *);
+typedef void (*avl_action_t)(const void *data);
-typedef void (*avl_action_node_t)(const avl_node_t *);
+typedef void (*avl_action_node_t)(const avl_node_t *node);
 
 typedef struct avl_tree_t {
 
@@ -88,56 +87,56 @@ typedef struct avl_tree_t {
 
 /* (De)constructors */
 
-extern avl_tree_t *avl_alloc_tree(avl_compare_t, avl_action_t);
+extern avl_tree_t *avl_alloc_tree(avl_compare_t compare, avl_action_t delete);
-extern void avl_free_tree(avl_tree_t *);
+extern void avl_free_tree(avl_tree_t *tree);
 
 extern avl_node_t *avl_alloc_node(void);
-extern void avl_free_node(avl_tree_t *tree, avl_node_t *);
+extern void avl_free_node(avl_tree_t *tree, avl_node_t *node);
 
 /* Insertion and deletion */
 
-extern avl_node_t *avl_insert(avl_tree_t *, void *);
+extern avl_node_t *avl_insert(avl_tree_t *tree, void *data);
-extern avl_node_t *avl_insert_node(avl_tree_t *, avl_node_t *);
+extern avl_node_t *avl_insert_node(avl_tree_t *tree, avl_node_t *node);
 
-extern void avl_insert_top(avl_tree_t *, avl_node_t *);
+extern void avl_insert_top(avl_tree_t *tree, avl_node_t *node);
-extern void avl_insert_before(avl_tree_t *, avl_node_t *, avl_node_t *);
+extern void avl_insert_before(avl_tree_t *tree, avl_node_t *before, avl_node_t *node);
-extern void avl_insert_after(avl_tree_t *, avl_node_t *, avl_node_t *);
+extern void avl_insert_after(avl_tree_t *tree, avl_node_t *after, avl_node_t *node);
 
-extern avl_node_t *avl_unlink(avl_tree_t *, void *);
+extern avl_node_t *avl_unlink(avl_tree_t *tree, void *data);
-extern void avl_unlink_node(avl_tree_t *tree, avl_node_t *);
+extern void avl_unlink_node(avl_tree_t *tree, avl_node_t *node);
-extern void avl_delete(avl_tree_t *, void *);
+extern void avl_delete(avl_tree_t *tree, void *data);
-extern void avl_delete_node(avl_tree_t *, avl_node_t *);
+extern void avl_delete_node(avl_tree_t *tree, avl_node_t *node);
 
 /* Fast tree cleanup */
 
-extern void avl_delete_tree(avl_tree_t *);
+extern void avl_delete_tree(avl_tree_t *tree);
 
 /* Searching */
 
-extern void *avl_search(const avl_tree_t *, const void *);
+extern void *avl_search(const avl_tree_t *tree, const void *data);
-extern void *avl_search_closest(const avl_tree_t *, const void *, int *);
+extern void *avl_search_closest(const avl_tree_t *tree, const void *data, int *result);
-extern void *avl_search_closest_smaller(const avl_tree_t *, const void *);
+extern void *avl_search_closest_smaller(const avl_tree_t *tree, const void *data);
-extern void *avl_search_closest_greater(const avl_tree_t *, const void *);
+extern void *avl_search_closest_greater(const avl_tree_t *tree, const void *data);
 
-extern avl_node_t *avl_search_node(const avl_tree_t *, const void *);
+extern avl_node_t *avl_search_node(const avl_tree_t *tree, const void *data);
-extern avl_node_t *avl_search_closest_node(const avl_tree_t *, const void *, int *);
+extern avl_node_t *avl_search_closest_node(const avl_tree_t *tree, const void *data, int *result);
-extern avl_node_t *avl_search_closest_smaller_node(const avl_tree_t *, const void *);
+extern avl_node_t *avl_search_closest_smaller_node(const avl_tree_t *tree, const void *data);
-extern avl_node_t *avl_search_closest_greater_node(const avl_tree_t *, const void *);
+extern avl_node_t *avl_search_closest_greater_node(const avl_tree_t *tree, const void *data);
 
 /* Tree walking */
 
-extern void avl_foreach(const avl_tree_t *, avl_action_t);
+extern void avl_foreach(const avl_tree_t *tree, avl_action_t action);
-extern void avl_foreach_node(const avl_tree_t *, avl_action_t);
+extern void avl_foreach_node(const avl_tree_t *tree, avl_action_t action);
 
 /* Indexing */
 
 #ifdef AVL_COUNT
-extern unsigned int avl_count(const avl_tree_t *);
+extern unsigned int avl_count(const avl_tree_t *tree);
-extern avl_node_t *avl_get_node(const avl_tree_t *, unsigned int);
+extern avl_node_t *avl_get_node(const avl_tree_t *tree, unsigned int index);
-extern unsigned int avl_index(const avl_node_t *);
+extern unsigned int avl_index(const avl_node_t *node);
 #endif
 #ifdef AVL_DEPTH
-extern unsigned int avl_depth(const avl_tree_t *);
+extern unsigned int avl_depth(const avl_tree_t *tree);
 #endif
 
-#endif							/* __AVL_TREE_H__ */
+#endif

src/bsd/device.c

@@ -1,7 +1,7 @@
 /*
     device.c -- Interaction BSD tun/tap device
     Copyright (C) 2001-2005 Ivo Timmermans,
-                  2001-2012 Guus Sliepen <guus@tinc-vpn.org>
+                  2001-2016 Guus Sliepen <guus@tinc-vpn.org>
                   2009      Grzegorz Dymarek <gregd72002@googlemail.com>
 
     This program is free software; you can redistribute it and/or modify
@@ -19,26 +19,28 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#include "system.h"
+#include "../system.h"
 
-#include "conf.h"
+#include "../conf.h"
-#include "device.h"
+#include "../device.h"
-#include "logger.h"
+#include "../logger.h"
-#include "net.h"
+#include "../net.h"
-#include "route.h"
+#include "../route.h"
-#include "utils.h"
+#include "../utils.h"
-#include "xalloc.h"
+#include "../xalloc.h"
 
 #ifdef ENABLE_TUNEMU
-#include "bsd/tunemu.h"
+#include "tunemu.h"
+#endif
+
+#ifdef HAVE_NET_IF_UTUN_H
+#include <sys/sys_domain.h>
+#include <sys/kern_control.h>
+#include <net/if_utun.h>
 #endif
 
 #define DEFAULT_TUN_DEVICE "/dev/tun0"
-#if defined(HAVE_FREEBSD) || defined(HAVE_NETBSD)
 #define DEFAULT_TAP_DEVICE "/dev/tap0"
-#else
-#define DEFAULT_TAP_DEVICE "/dev/tun0"
-#endif
 
 typedef enum device_type {
 	DEVICE_TYPE_TUN,
@@ -47,12 +49,13 @@ typedef enum device_type {
 #ifdef ENABLE_TUNEMU
 	DEVICE_TYPE_TUNEMU,
 #endif
+	DEVICE_TYPE_UTUN,
 } device_type_t;
 
 int device_fd = -1;
 char *device = NULL;
 char *iface = NULL;
-static char *device_info = NULL;
+static const char *device_info = "OS X utun device";
 static uint64_t device_total_in = 0;
 static uint64_t device_total_out = 0;
 #if defined(ENABLE_TUNEMU)
@@ -63,51 +66,140 @@ static device_type_t device_type = DEVICE_TYPE_TUNIFHEAD;
 static device_type_t device_type = DEVICE_TYPE_TUN;
 #endif
 
-static bool setup_device(void) {
+#ifdef HAVE_NET_IF_UTUN_H
-	char *type;
+static bool setup_utun(void) {
+	device_fd = socket(PF_SYSTEM, SOCK_DGRAM, SYSPROTO_CONTROL);
 
-	if(!get_config_string(lookup_config(config_tree, "Device"), &device)) {
+	if(device_fd == -1) {
-		if(routing_mode == RMODE_ROUTER)
+		logger(LOG_ERR, "Could not open PF_SYSTEM socket: %s\n", strerror(errno));
-			device = xstrdup(DEFAULT_TUN_DEVICE);
+		return false;
-		else
-			device = xstrdup(DEFAULT_TAP_DEVICE);
 	}
 
-	if(!get_config_string(lookup_config(config_tree, "Interface"), &iface))
+	struct ctl_info info = {};
-		iface = xstrdup(strrchr(device, '/') ? strrchr(device, '/') + 1 : device);
+
+	strlcpy(info.ctl_name, UTUN_CONTROL_NAME, sizeof(info.ctl_name));
+
+	if(ioctl(device_fd, CTLIOCGINFO, &info) == -1) {
+		logger(LOG_ERR, "ioctl(CTLIOCGINFO) failed: %s", strerror(errno));
+		return false;
+	}
+
+	int unit = -1;
+	char *p = strstr(device, "utun"), *e = NULL;
+
+	if(p) {
+		unit = strtol(p + 4, &e, 10);
+
+		if(!e) {
+			unit = -1;
+		}
+	}
+
+	struct sockaddr_ctl sc = {
+		.sc_id = info.ctl_id,
+		.sc_len = sizeof(sc),
+		.sc_family = AF_SYSTEM,
+		.ss_sysaddr = AF_SYS_CONTROL,
+		.sc_unit = unit + 1,
+	};
+
+	if(connect(device_fd, (struct sockaddr *)&sc, sizeof(sc)) == -1) {
+		logger(LOG_ERR, "Could not connect utun socket: %s\n", strerror(errno));
+		return false;
+	}
+
+	char name[64] = "";
+	socklen_t len = sizeof(name);
+
+	if(getsockopt(device_fd, SYSPROTO_CONTROL, UTUN_OPT_IFNAME, name, &len)) {
+		iface = xstrdup(device);
+	} else {
+		iface = xstrdup(name);
+	}
+
+	logger(LOG_INFO, "%s is a %s", device, device_info);
+
+	return true;
+}
+#endif
+
+static bool setup_device(void) {
+	// Find out which device file to open
+
+	if(!get_config_string(lookup_config(config_tree, "Device"), &device)) {
+		if(routing_mode == RMODE_ROUTER) {
+			device = xstrdup(DEFAULT_TUN_DEVICE);
+		} else {
+			device = xstrdup(DEFAULT_TAP_DEVICE);
+		}
+	}
+
+	// Find out if it's supposed to be a tun or a tap device
+
+	char *type;
 
 	if(get_config_string(lookup_config(config_tree, "DeviceType"), &type)) {
 		if(!strcasecmp(type, "tun"))
-			/* use default */;	
+			/* use default */;
+
 #ifdef ENABLE_TUNEMU
-		else if(!strcasecmp(type, "tunemu"))
+		else if(!strcasecmp(type, "tunemu")) {
 			device_type = DEVICE_TYPE_TUNEMU;
+		}
+
 #endif
-		else if(!strcasecmp(type, "tunnohead"))
+#ifdef HAVE_NET_IF_UTUN_H
+		else if(!strcasecmp(type, "utun")) {
+			device_type = DEVICE_TYPE_UTUN;
+		}
+
+#endif
+		else if(!strcasecmp(type, "tunnohead")) {
 			device_type = DEVICE_TYPE_TUN;
-		else if(!strcasecmp(type, "tunifhead"))
+		} else if(!strcasecmp(type, "tunifhead")) {
 			device_type = DEVICE_TYPE_TUNIFHEAD;
-		else if(!strcasecmp(type, "tap"))
+		} else if(!strcasecmp(type, "tap")) {
 			device_type = DEVICE_TYPE_TAP;
-		else {
+		} else {
 			logger(LOG_ERR, "Unknown device type %s!", type);
 			return false;
 		}
 	} else {
-		if(strstr(device, "tap") || routing_mode != RMODE_ROUTER)
+#ifdef HAVE_NET_IF_UTUN_H
-			device_type = DEVICE_TYPE_TAP;
+
+		if(strncmp(device, "utun", 4) == 0 || strncmp(device, "/dev/utun", 9) == 0) {
+			device_type = DEVICE_TYPE_UTUN;
+		} else
+#endif
+			if(strstr(device, "tap") || routing_mode != RMODE_ROUTER) {
+				device_type = DEVICE_TYPE_TAP;
+			}
 	}
 
+	if(routing_mode == RMODE_SWITCH && device_type != DEVICE_TYPE_TAP) {
+		logger(LOG_ERR, "Only tap devices support switch mode!");
+		return false;
+	}
+
+	// Open the device
+
 	switch(device_type) {
 #ifdef ENABLE_TUNEMU
-		case DEVICE_TYPE_TUNEMU: {
+
-			char dynamic_name[256] = "";
+	case DEVICE_TYPE_TUNEMU: {
-        		device_fd = tunemu_open(dynamic_name);
+		char dynamic_name[256] = "";
-		}
+		device_fd = tunemu_open(dynamic_name);
-			break;
+	}
+	break;
 #endif
-		default:
+#ifdef HAVE_NET_IF_UTUN_H
-			device_fd = open(device, O_RDWR | O_NONBLOCK);
+
+	case DEVICE_TYPE_UTUN:
+		return setup_utun();
+#endif
+
+	default:
+		device_fd = open(device, O_RDWR | O_NONBLOCK);
 	}
 
 	if(device_fd < 0) {
@@ -119,70 +211,118 @@ static bool setup_device(void) {
 	fcntl(device_fd, F_SETFD, FD_CLOEXEC);
 #endif
 
+	// Guess what the corresponding interface is called
+
+	char *realname = NULL;
+
+#if defined(HAVE_FDEVNAME)
+	realname = fdevname(device_fd);
+#elif defined(HAVE_DEVNAME)
+	struct stat buf;
+
+	if(!fstat(device_fd, &buf)) {
+		realname = devname(buf.st_rdev, S_IFCHR);
+	}
+
+#endif
+
+	if(!realname) {
+		realname = device;
+	}
+
+	if(!get_config_string(lookup_config(config_tree, "Interface"), &iface)) {
+		iface = xstrdup(strrchr(realname, '/') ? strrchr(realname, '/') + 1 : realname);
+	} else if(strcmp(iface, strrchr(realname, '/') ? strrchr(realname, '/') + 1 : realname)) {
+		logger(LOG_WARNING, "Warning: Interface does not match Device. $INTERFACE might be set incorrectly.");
+	}
+
+	// Configure the device as best as we can
+
 	switch(device_type) {
-		default:
+	default:
-			device_type = DEVICE_TYPE_TUN;
+		device_type = DEVICE_TYPE_TUN;
-		case DEVICE_TYPE_TUN:
+
+	case DEVICE_TYPE_TUN:
 #ifdef TUNSIFHEAD
-		{	
+		{
 			const int zero = 0;
-			if(ioctl(device_fd, TUNSIFHEAD, &zero, sizeof zero) == -1) {
+
+			if(ioctl(device_fd, TUNSIFHEAD, &zero, sizeof(zero)) == -1) {
 				logger(LOG_ERR, "System call `%s' failed: %s", "ioctl", strerror(errno));
 				return false;
 			}
 		}
+
 #endif
 #if defined(TUNSIFMODE) && defined(IFF_BROADCAST) && defined(IFF_MULTICAST)
 		{
 			const int mode = IFF_BROADCAST | IFF_MULTICAST;
-			ioctl(device_fd, TUNSIFMODE, &mode, sizeof mode);
+			ioctl(device_fd, TUNSIFMODE, &mode, sizeof(mode));
 		}
 #endif
 
-			device_info = "Generic BSD tun device";
+		device_info = "Generic BSD tun device";
-			break;
+		break;
-		case DEVICE_TYPE_TUNIFHEAD:
+
+	case DEVICE_TYPE_TUNIFHEAD:
 #ifdef TUNSIFHEAD
 		{
 			const int one = 1;
-			if(ioctl(device_fd, TUNSIFHEAD, &one, sizeof one) == -1) {
+
+			if(ioctl(device_fd, TUNSIFHEAD, &one, sizeof(one)) == -1) {
 				logger(LOG_ERR, "System call `%s' failed: %s", "ioctl", strerror(errno));
 				return false;
 			}
 		}
+
 #endif
 #if defined(TUNSIFMODE) && defined(IFF_BROADCAST) && defined(IFF_MULTICAST)
 		{
-				const int mode = IFF_BROADCAST | IFF_MULTICAST;
+			const int mode = IFF_BROADCAST | IFF_MULTICAST;
-				ioctl(device_fd, TUNSIFMODE, &mode, sizeof mode);
+			ioctl(device_fd, TUNSIFMODE, &mode, sizeof(mode));
 		}
 #endif
 
-			device_info = "Generic BSD tun device";
+		device_info = "Generic BSD tun device";
-			break;
+		break;
-		case DEVICE_TYPE_TAP:
+
-			if(routing_mode == RMODE_ROUTER)
+	case DEVICE_TYPE_TAP:
-				overwrite_mac = true;
+		if(routing_mode == RMODE_ROUTER) {
-			device_info = "Generic BSD tap device";
+			overwrite_mac = true;
+		}
+
+		device_info = "Generic BSD tap device";
 #ifdef TAPGIFNAME
-			{
+		{
-				struct ifreq ifr;
+			struct ifreq ifr;
-				if(ioctl(device_fd, TAPGIFNAME, (void*)&ifr) == 0) {
+
-					if(iface)
+			if(ioctl(device_fd, TAPGIFNAME, (void *)&ifr) == 0) {
-						free(iface);
+				if(iface) {
-					iface = xstrdup(ifr.ifr_name);
+					free(iface);
 				}
+
+				iface = xstrdup(ifr.ifr_name);
 			}
-			
+		}
+
 #endif
-			break;
+		break;
 #ifdef ENABLE_TUNEMU
-		case DEVICE_TYPE_TUNEMU:
+
-        		device_info = "BSD tunemu device";
+	case DEVICE_TYPE_TUNEMU:
-			break;
+		device_info = "BSD tunemu device";
+		break;
 #endif
 	}
 
+#ifdef SIOCGIFADDR
+
+	if(overwrite_mac) {
+		ioctl(device_fd, SIOCGIFADDR, mymac.x);
+	}
+
+#endif
+
 	logger(LOG_INFO, "%s is a %s", device, device_info);
 
 	return true;
@@ -191,12 +331,14 @@ static bool setup_device(void) {
 static void close_device(void) {
 	switch(device_type) {
 #ifdef ENABLE_TUNEMU
-		case DEVICE_TYPE_TUNEMU:
+
-			tunemu_close(device_fd);
+	case DEVICE_TYPE_TUNEMU:
-			break;
+		tunemu_close(device_fd);
+		break;
 #endif
-		default:
+
-			close(device_fd);
+	default:
+		close(device_fd);
 	}
 
 	free(device);
@@ -207,158 +349,165 @@ static bool read_packet(vpn_packet_t *packet) {
 	int lenin;
 
 	switch(device_type) {
-		case DEVICE_TYPE_TUN:
+	case DEVICE_TYPE_TUN:
 #ifdef ENABLE_TUNEMU
-		case DEVICE_TYPE_TUNEMU:
+	case DEVICE_TYPE_TUNEMU:
-			if(device_type == DEVICE_TYPE_TUNEMU)
+		if(device_type == DEVICE_TYPE_TUNEMU) {
-				lenin = tunemu_read(device_fd, packet->data + 14, MTU - 14);
+			lenin = tunemu_read(device_fd, packet->data + 14, MTU - 14);
-			else
+		} else
 #endif
-				lenin = read(device_fd, packet->data + 14, MTU - 14);
+			lenin = read(device_fd, packet->data + 14, MTU - 14);
 
-			if(lenin <= 0) {
+		if(lenin <= 0) {
-				logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
+			logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
-					   device, strerror(errno));
+			       device, strerror(errno));
-				return false;
+			return false;
-			}
-
-			switch(packet->data[14] >> 4) {
-				case 4:
-					packet->data[12] = 0x08;
-					packet->data[13] = 0x00;
-					break;
-				case 6:
-					packet->data[12] = 0x86;
-					packet->data[13] = 0xDD;
-					break;
-				default:
-					ifdebug(TRAFFIC) logger(LOG_ERR,
-							   "Unknown IP version %d while reading packet from %s %s",
-							   packet->data[14] >> 4, device_info, device);
-					return false;
-			}
-
-			memset(packet->data, 0, 12);
-			packet->len = lenin + 14;
-			break;
-
-		case DEVICE_TYPE_TUNIFHEAD: {
-			u_int32_t type;
-			struct iovec vector[2] = {{&type, sizeof(type)}, {packet->data + 14, MTU - 14}};
-
-			if((lenin = readv(device_fd, vector, 2)) <= 0) {
-				logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
-					   device, strerror(errno));
-				return false;
-			}
-
-			switch (ntohl(type)) {
-				case AF_INET:
-					packet->data[12] = 0x08;
-					packet->data[13] = 0x00;
-					break;
-
-				case AF_INET6:
-					packet->data[12] = 0x86;
-					packet->data[13] = 0xDD;
-					break;
-
-				default:
-					ifdebug(TRAFFIC) logger(LOG_ERR,
-							   "Unknown address family %x while reading packet from %s %s",
-							   ntohl(type), device_info, device);
-					return false;
-			}
-
-			memset(packet->data, 0, 12);
-			packet->len = lenin + 10;
-			break;
 		}
 
-		case DEVICE_TYPE_TAP:
+		switch(packet->data[14] >> 4) {
-			if((lenin = read(device_fd, packet->data, MTU)) <= 0) {
+		case 4:
-				logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
+			packet->data[12] = 0x08;
-					   device, strerror(errno));
+			packet->data[13] = 0x00;
-				return false;
+			break;
-			}
 
-			packet->len = lenin;
+		case 6:
+			packet->data[12] = 0x86;
+			packet->data[13] = 0xDD;
 			break;
 
 		default:
+			ifdebug(TRAFFIC) logger(LOG_ERR,
+			                        "Unknown IP version %d while reading packet from %s %s",
+			                        packet->data[14] >> 4, device_info, device);
 			return false;
+		}
+
+		memset(packet->data, 0, 12);
+		packet->len = lenin + 14;
+		break;
+
+	case DEVICE_TYPE_UTUN:
+	case DEVICE_TYPE_TUNIFHEAD: {
+		if((lenin = read(device_fd, packet->data + 10, MTU - 10)) <= 0) {
+			logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
+			       device, strerror(errno));
+			return false;
+		}
+
+		switch(packet->data[14] >> 4) {
+		case 4:
+			packet->data[12] = 0x08;
+			packet->data[13] = 0x00;
+			break;
+
+		case 6:
+			packet->data[12] = 0x86;
+			packet->data[13] = 0xDD;
+			break;
+
+		default:
+			ifdebug(TRAFFIC) logger(LOG_ERR,
+			                        "Unknown IP version %d while reading packet from %s %s",
+			                        packet->data[14] >> 4, device_info, device);
+			return false;
+		}
+
+		memset(packet->data, 0, 12);
+		packet->len = lenin + 10;
+		break;
 	}
-		
+
+	case DEVICE_TYPE_TAP:
+		if((lenin = read(device_fd, packet->data, MTU)) <= 0) {
+			logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
+			       device, strerror(errno));
+			return false;
+		}
+
+		packet->len = lenin;
+		break;
+
+	default:
+		return false;
+	}
+
 	device_total_in += packet->len;
 
 	ifdebug(TRAFFIC) logger(LOG_DEBUG, "Read packet of %d bytes from %s",
-			   packet->len, device_info);
+	                        packet->len, device_info);
 
 	return true;
 }
 
 static bool write_packet(vpn_packet_t *packet) {
 	ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
-			   packet->len, device_info);
+	                        packet->len, device_info);
 
 	switch(device_type) {
-		case DEVICE_TYPE_TUN:
+	case DEVICE_TYPE_TUN:
-			if(write(device_fd, packet->data + 14, packet->len - 14) < 0) {
+		if(write(device_fd, packet->data + 14, packet->len - 14) < 0) {
-				logger(LOG_ERR, "Error while writing to %s %s: %s", device_info,
+			logger(LOG_ERR, "Error while writing to %s %s: %s", device_info,
-					   device, strerror(errno));
+			       device, strerror(errno));
-				return false;
+			return false;
-			}
-			break;
-
-		case DEVICE_TYPE_TUNIFHEAD: {
-			u_int32_t type;
-			struct iovec vector[2] = {{&type, sizeof(type)}, {packet->data + 14, packet->len - 14}};
-			int af;
-			
-			af = (packet->data[12] << 8) + packet->data[13];
-
-			switch (af) {
-				case 0x0800:
-					type = htonl(AF_INET);
-					break;
-				case 0x86DD:
-					type = htonl(AF_INET6);
-					break;
-				default:
-					ifdebug(TRAFFIC) logger(LOG_ERR,
-							   "Unknown address family %x while writing packet to %s %s",
-							   af, device_info, device);
-					return false;
-			}
-
-			if(writev(device_fd, vector, 2) < 0) {
-				logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device,
-					   strerror(errno));
-				return false;
-			}
-			break;
 		}
-			
+
-		case DEVICE_TYPE_TAP:
+		break;
-			if(write(device_fd, packet->data, packet->len) < 0) {
+
-				logger(LOG_ERR, "Error while writing to %s %s: %s", device_info,
+	case DEVICE_TYPE_UTUN:
-					   device, strerror(errno));
+	case DEVICE_TYPE_TUNIFHEAD: {
-				return false;
+		int af = (packet->data[12] << 8) + packet->data[13];
-			}
+		uint32_t type;
+
+		switch(af) {
+		case 0x0800:
+			type = htonl(AF_INET);
 			break;
 
-#ifdef ENABLE_TUNEMU
+		case 0x86DD:
-		case DEVICE_TYPE_TUNEMU:
+			type = htonl(AF_INET6);
-			if(tunemu_write(device_fd, packet->data + 14, packet->len - 14) < 0) {
-				logger(LOG_ERR, "Error while writing to %s %s: %s", device_info,
-					   device, strerror(errno));
-				return false;
-			}
 			break;
-#endif
 
 		default:
+			ifdebug(TRAFFIC) logger(LOG_ERR,
+			                        "Unknown address family %x while writing packet to %s %s",
+			                        af, device_info, device);
 			return false;
+		}
+
+		memcpy(packet->data + 10, &type, sizeof(type));
+
+		if(write(device_fd, packet->data + 10, packet->len - 10) < 0) {
+			logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device,
+			       strerror(errno));
+			return false;
+		}
+
+		break;
+	}
+
+	case DEVICE_TYPE_TAP:
+		if(write(device_fd, packet->data, packet->len) < 0) {
+			logger(LOG_ERR, "Error while writing to %s %s: %s", device_info,
+			       device, strerror(errno));
+			return false;
+		}
+
+		break;
+
+#ifdef ENABLE_TUNEMU
+
+	case DEVICE_TYPE_TUNEMU:
+		if(tunemu_write(device_fd, packet->data + 14, packet->len - 14) < 0) {
+			logger(LOG_ERR, "Error while writing to %s %s: %s", device_info,
+			       device, strerror(errno));
+			return false;
+		}
+
+		break;
+#endif
+
+	default:
+		return false;
 	}
 
 	device_total_out += packet->len;

src/bsd/tunemu.c

@@ -1,20 +1,20 @@
 /*
  *  tunemu - Tun device emulation for Darwin
  *  Copyright (C) 2009 Friedrich Schöller <friedrich.schoeller@gmail.com>
- *  
+ *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation, either version 3 of the License, or
  *  (at your option) any later version.
- *  
+ *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
- *  
+ *
  *  You should have received a copy of the GNU General Public License
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *  
+ *
  */
 
 #include "tunemu.h"
@@ -36,37 +36,34 @@
 
 #define PPPPROTO_CTL 1
 
-#define PPP_IP		0x21
+#define PPP_IP          0x21
-#define PPP_IPV6	0x57
+#define PPP_IPV6        0x57
 
 #define SC_LOOP_TRAFFIC 0x00000200
 
-#define PPPIOCNEWUNIT	_IOWR('t', 62, int)
+#define PPPIOCNEWUNIT   _IOWR('t', 62, int)
-#define	PPPIOCSFLAGS	_IOW('t', 89, int)
+#define PPPIOCSFLAGS    _IOW('t', 89, int)
-#define PPPIOCSNPMODE	_IOW('t', 75, struct npioctl)
+#define PPPIOCSNPMODE   _IOW('t', 75, struct npioctl)
-#define PPPIOCATTCHAN	_IOW('t', 56, int)
+#define PPPIOCATTCHAN   _IOW('t', 56, int)
-#define PPPIOCGCHAN		_IOR('t', 55, int)
+#define PPPIOCGCHAN             _IOR('t', 55, int)
-#define PPPIOCCONNECT	_IOW('t', 58, int)
+#define PPPIOCCONNECT   _IOW('t', 58, int)
-#define	PPPIOCGUNIT		_IOR('t', 86, int)
+#define PPPIOCGUNIT             _IOR('t', 86, int)
 
-struct sockaddr_ppp
+struct sockaddr_ppp {
-{
 	u_int8_t ppp_len;
 	u_int8_t ppp_family;
 	u_int16_t ppp_proto;
 	u_int32_t ppp_cookie;
 };
 
-enum NPmode
+enum NPmode {
-{
 	NPMODE_PASS,
-    NPMODE_DROP,
+	NPMODE_DROP,
-    NPMODE_ERROR,
+	NPMODE_ERROR,
-    NPMODE_QUEUE
+	NPMODE_QUEUE
 };
 
-struct npioctl
+struct npioctl {
-{
 	int protocol;
 	enum NPmode mode;
 };
@@ -83,58 +80,55 @@ static pcap_t *pcap = NULL;
 static int data_buffer_length = 0;
 static char *data_buffer = NULL;
 
-static void tun_error(char *format, ...)
+static void tun_error(char *format, ...) {
-{
 	va_list vl;
 	va_start(vl, format);
 	vsnprintf(tunemu_error, ERROR_BUFFER_SIZE, format, vl);
 	va_end(vl);
 }
 
-static void tun_noerror()
+static void tun_noerror() {
-{
 	*tunemu_error = 0;
 }
 
-static void closeall()
+static void closeall() {
-{
+	int fd = getdtablesize();
-    int fd = getdtablesize();
-	while (fd--)
-		close(fd);
 
-    open("/dev/null", O_RDWR, 0);
+	while(fd--) {
-    dup(0);
+		close(fd);
-    dup(0);
+	}
+
+	open("/dev/null", O_RDWR, 0);
+	dup(0);
+	dup(0);
 }
 
-static int ppp_load_kext()
+static int ppp_load_kext() {
-{
 	int pid = fork();
-	if (pid < 0)
+
-	{
+	if(pid < 0) {
 		tun_error("fork for ppp kext: %s", strerror(errno));
 		return -1;
 	}
 
-	if (pid == 0)
+	if(pid == 0) {
-	{
 		closeall();
 		execle("/sbin/kextload", "kextload", PPP_KEXT_PATH, NULL, NULL);
 		exit(1);
 	}
 
 	int status;
-	while (waitpid(pid, &status, 0) < 0)
+
-	{
+	while(waitpid(pid, &status, 0) < 0) {
-		if (errno == EINTR)
+		if(errno == EINTR) {
 			continue;
+		}
 
 		tun_error("waitpid for ppp kext: %s", strerror(errno));
 		return -1;
 	}
 
-	if (WEXITSTATUS(status) != 0)
+	if(WEXITSTATUS(status) != 0) {
-	{
 		tun_error("could not load ppp kext \"%s\"", PPP_KEXT_PATH);
 		return -1;
 	}
@@ -143,74 +137,73 @@ static int ppp_load_kext()
 	return 0;
 }
 
-static int ppp_new_instance()
+static int ppp_new_instance() {
-{
 	// create ppp socket
-    int ppp_sockfd = socket(PF_PPP, SOCK_RAW, PPPPROTO_CTL);
+	int ppp_sockfd = socket(PF_PPP, SOCK_RAW, PPPPROTO_CTL);
-    if (ppp_sockfd < 0)
+
-	{
+	if(ppp_sockfd < 0) {
-		if (ppp_load_kext() < 0)
+		if(ppp_load_kext() < 0) {
 			return -1;
+		}
 
 		ppp_sockfd = socket(PF_PPP, SOCK_RAW, PPPPROTO_CTL);
-		if (ppp_sockfd < 0)
+
-		{
+		if(ppp_sockfd < 0) {
 			tun_error("creating ppp socket: %s", strerror(errno));
 			return -1;
 		}
 	}
 
 	// connect to ppp procotol
-    struct sockaddr_ppp pppaddr;
+	struct sockaddr_ppp pppaddr;
-    pppaddr.ppp_len = sizeof(struct sockaddr_ppp);
+	pppaddr.ppp_len = sizeof(struct sockaddr_ppp);
-    pppaddr.ppp_family = AF_PPP;
+	pppaddr.ppp_family = AF_PPP;
-    pppaddr.ppp_proto = PPPPROTO_CTL;
+	pppaddr.ppp_proto = PPPPROTO_CTL;
-    pppaddr.ppp_cookie = 0;
+	pppaddr.ppp_cookie = 0;
-    if (connect(ppp_sockfd, (struct sockaddr *)&pppaddr, sizeof(struct sockaddr_ppp)) < 0)
+
-	{
+	if(connect(ppp_sockfd, (struct sockaddr *)&pppaddr, sizeof(struct sockaddr_ppp)) < 0) {
 		tun_error("connecting ppp socket: %s", strerror(errno));
 		close(ppp_sockfd);
 		return -1;
-    }
+	}
 
 	tun_noerror();
 	return ppp_sockfd;
 }
 
-static int ppp_new_unit(int *unit_number)
+static int ppp_new_unit(int *unit_number) {
-{
 	int fd = ppp_new_instance();
-	if (fd < 0)
+
+	if(fd < 0) {
 		return -1;
+	}
 
 	// create ppp unit
-	if (ioctl(fd, PPPIOCNEWUNIT, unit_number) < 0)
+	if(ioctl(fd, PPPIOCNEWUNIT, unit_number) < 0) {
-	{
 		tun_error("creating ppp unit: %s", strerror(errno));
 		close(fd);
 		return -1;
-    }
+	}
 
 	tun_noerror();
 	return fd;
 }
 
-static int ppp_setup_unit(int unit_fd)
+static int ppp_setup_unit(int unit_fd) {
-{
 	// send traffic to program
 	int flags = SC_LOOP_TRAFFIC;
-	if (ioctl(unit_fd, PPPIOCSFLAGS, &flags) < 0)
+
-	{
+	if(ioctl(unit_fd, PPPIOCSFLAGS, &flags) < 0) {
 		tun_error("setting ppp loopback mode: %s", strerror(errno));
 		return -1;
-    }
+	}
 
 	// allow packets
 	struct npioctl npi;
 	npi.protocol = PPP_IP;
 	npi.mode = NPMODE_PASS;
-	if (ioctl(unit_fd, PPPIOCSNPMODE, &npi) < 0)
+
-	{
+	if(ioctl(unit_fd, PPPIOCSNPMODE, &npi) < 0) {
 		tun_error("starting ppp unit: %s", strerror(errno));
 		return -1;
 	}
@@ -219,10 +212,8 @@ static int ppp_setup_unit(int unit_fd)
 	return 0;
 }
 
-static int open_pcap()
+static int open_pcap() {
-{
+	if(pcap != NULL) {
-	if (pcap != NULL)
-	{
 		pcap_use_count++;
 		return 0;
 	}
@@ -231,8 +222,7 @@ static int open_pcap()
 	pcap = pcap_open_live("lo0", BUFSIZ, 0, 1, errbuf);
 	pcap_use_count = 1;
 
-	if (pcap == NULL)
+	if(pcap == NULL) {
-	{
 		tun_error("opening pcap: %s", errbuf);
 		return -1;
 	}
@@ -241,59 +231,57 @@ static int open_pcap()
 	return 0;
 }
 
-static void close_pcap()
+static void close_pcap() {
-{
+	if(pcap == NULL) {
-	if (pcap == NULL)
 		return;
+	}
 
 	pcap_use_count--;
-	if (pcap_use_count == 0)
+
-	{
+	if(pcap_use_count == 0) {
 		pcap_close(pcap);
 		pcap = NULL;
 	}
 }
 
-static void allocate_data_buffer(int size)
+static void allocate_data_buffer(int size) {
-{
+	if(data_buffer_length < size) {
-	if (data_buffer_length < size)
-	{
 		free(data_buffer);
 		data_buffer_length = size;
 		data_buffer = malloc(data_buffer_length);
 	}
 }
 
-static void make_device_name(tunemu_device device, int unit_number)
+static void make_device_name(tunemu_device device, int unit_number) {
-{
 	snprintf(device, sizeof(tunemu_device), "ppp%d", unit_number);
 }
 
-static int check_device_name(tunemu_device device)
+static int check_device_name(tunemu_device device) {
-{
+	if(strlen(device) < 4) {
-	if (strlen(device) < 4)
 		return -1;
+	}
 
 	int unit_number = atoi(device + 3);
-	if (unit_number < 0 || unit_number > 999)
+
+	if(unit_number < 0 || unit_number > 999) {
 		return -1;
+	}
 
 	tunemu_device compare;
 	make_device_name(compare, unit_number);
 
-	if (strcmp(device, compare) != 0)
+	if(strcmp(device, compare) != 0) {
 		return -1;
+	}
 
 	return 0;
 }
 
-int tunemu_open(tunemu_device device)
+int tunemu_open(tunemu_device device) {
-{
 	int ppp_unit_number = -1;
-	if (device[0] != 0)
+
-	{
+	if(device[0] != 0) {
-		if (check_device_name(device) < 0)
+		if(check_device_name(device) < 0) {
-		{
 			tun_error("invalid device name \"%s\"", device);
 			return -1;
 		}
@@ -302,17 +290,17 @@ int tunemu_open(tunemu_device device)
 	}
 
 	int ppp_unit_fd = ppp_new_unit(&ppp_unit_number);
-	if (ppp_unit_fd < 0)
-		return -1;
 
-	if (ppp_setup_unit(ppp_unit_fd) < 0)
+	if(ppp_unit_fd < 0) {
-	{
+		return -1;
+	}
+
+	if(ppp_setup_unit(ppp_unit_fd) < 0) {
 		close(ppp_unit_fd);
 		return -1;
 	}
 
-	if (open_pcap() < 0)
+	if(open_pcap() < 0) {
-	{
 		close(ppp_unit_fd);
 		return -1;
 	}
@@ -322,39 +310,40 @@ int tunemu_open(tunemu_device device)
 	return ppp_unit_fd;
 }
 
-int tunemu_close(int ppp_sockfd)
+int tunemu_close(int ppp_sockfd) {
-{
 	int ret = close(ppp_sockfd);
 
-	if (ret == 0)
+	if(ret == 0) {
 		close_pcap();
+	}
 
 	return ret;
 }
 
-int tunemu_read(int ppp_sockfd, char *buffer, int length)
+int tunemu_read(int ppp_sockfd, char *buffer, int length) {
-{
 	allocate_data_buffer(length + 2);
 
 	length = read(ppp_sockfd, data_buffer, length + 2);
-	if (length < 0)
+
-	{
+	if(length < 0) {
 		tun_error("reading packet: %s", strerror(errno));
 		return length;
 	}
+
 	tun_noerror();
 
 	length -= 2;
-	if (length < 0)
+
+	if(length < 0) {
 		return 0;
+	}
 
 	memcpy(buffer, data_buffer + 2, length);
 
 	return length;
 }
 
-int tunemu_write(int ppp_sockfd, char *buffer, int length)
+int tunemu_write(int ppp_sockfd, char *buffer, int length) {
-{
 	allocate_data_buffer(length + 4);
 
 	data_buffer[0] = 0x02;
@@ -364,23 +353,25 @@ int tunemu_write(int ppp_sockfd, char *buffer, int length)
 
 	memcpy(data_buffer + 4, buffer, length);
 
-	if (pcap == NULL)
+	if(pcap == NULL) {
-	{
 		tun_error("pcap not open");
 		return -1;
 	}
 
 	length = pcap_inject(pcap, data_buffer, length + 4);
-	if (length < 0)
+
-	{
+	if(length < 0) {
 		tun_error("injecting packet: %s", pcap_geterr(pcap));
 		return length;
 	}
+
 	tun_noerror();
 
 	length -= 4;
-	if (length < 0)
+
+	if(length < 0) {
 		return 0;
+	}
 
 	return length;
 }

src/bsd/tunemu.h

@@ -1,20 +1,20 @@
 /*
  *  tunemu - Tun device emulation for Darwin
  *  Copyright (C) 2009 Friedrich Schöller <friedrich.schoeller@gmail.com>
- *  
+ *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation, either version 3 of the License, or
  *  (at your option) any later version.
- *  
+ *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
- *  
+ *
  *  You should have received a copy of the GNU General Public License
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *  
+ *
  */
 
 #ifndef TUNEMU_H

src/conf.c

@@ -2,9 +2,9 @@
     conf.c -- configuration code
     Copyright (C) 1998 Robert van der Meulen
                   1998-2005 Ivo Timmermans
-                  2000-2012 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2014 Guus Sliepen <guus@tinc-vpn.org>
                   2010-2011 Julien Muchembled <jm@jmuchemb.eu>
-		  2000 Cris van Pelt
+                  2000 Cris van Pelt
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -28,18 +28,18 @@
 #include "conf.h"
 #include "list.h"
 #include "logger.h"
-#include "netutl.h"				/* for str2address */
+#include "netutl.h"                             /* for str2address */
 #include "protocol.h"
-#include "utils.h"				/* for cp */
+#include "utils.h"                              /* for cp */
 #include "xalloc.h"
 
 avl_tree_t *config_tree;
 
-int pinginterval = 0;			/* seconds between pings */
+int pinginterval = 0;                   /* seconds between pings */
-int pingtimeout = 0;			/* seconds to wait for response */
+int pingtimeout = 0;                    /* seconds to wait for response */
-char *confbase = NULL;			/* directory in which all config files are */
+char *confbase = NULL;                  /* directory in which all config files are */
-char *netname = NULL;			/* name of the vpn network */
+char *netname = NULL;                   /* name of the vpn network */
-list_t *cmdline_conf = NULL;	/* global/host configuration values given at the command line */
+list_t *cmdline_conf = NULL;    /* global/host configuration values given at the command line */
 
 
 static int config_compare(const config_t *a, const config_t *b) {
@@ -47,27 +47,31 @@ static int config_compare(const config_t *a, const config_t *b) {
 
 	result = strcasecmp(a->variable, b->variable);
 
-	if(result)
+	if(result) {
 		return result;
+	}
 
 	/* give priority to command line options */
 	result = !b->file - !a->file;
-	if (result)
+
+	if(result) {
 		return result;
+	}
 
 	result = a->line - b->line;
 
-	if(result)
+	if(result) {
 		return result;
-	else
+	} else {
 		return a->file ? strcmp(a->file, b->file) : 0;
+	}
 }
 
-void init_configuration(avl_tree_t ** config_tree) {
+void init_configuration(avl_tree_t **config_tree) {
 	*config_tree = avl_alloc_tree((avl_compare_t) config_compare, (avl_action_t) free_config);
 }
 
-void exit_configuration(avl_tree_t ** config_tree) {
+void exit_configuration(avl_tree_t **config_tree) {
 	avl_delete_tree(*config_tree);
 	*config_tree = NULL;
 }
@@ -77,15 +81,9 @@ config_t *new_config(void) {
 }
 
 void free_config(config_t *cfg) {
-	if(cfg->variable)
+	free(cfg->variable);
-		free(cfg->variable);
+	free(cfg->value);
-
+	free(cfg->file);
-	if(cfg->value)
-		free(cfg->value);
-
-	if(cfg->file)
-		free(cfg->file);
-
 	free(cfg);
 }
 
@@ -102,11 +100,13 @@ config_t *lookup_config(const avl_tree_t *config_tree, char *variable) {
 
 	found = avl_search_closest_greater(config_tree, &cfg);
 
-	if(!found)
+	if(!found) {
 		return NULL;
+	}
 
-	if(strcasecmp(found->variable, variable))
+	if(strcasecmp(found->variable, variable)) {
 		return NULL;
+	}
 
 	return found;
 }
@@ -121,8 +121,9 @@ config_t *lookup_config_next(const avl_tree_t *config_tree, const config_t *cfg)
 		if(node->next) {
 			found = node->next->data;
 
-			if(!strcasecmp(found->variable, cfg->variable))
+			if(!strcasecmp(found->variable, cfg->variable)) {
 				return found;
+			}
 		}
 	}
 
@@ -130,8 +131,9 @@ config_t *lookup_config_next(const avl_tree_t *config_tree, const config_t *cfg)
 }
 
 bool get_config_bool(const config_t *cfg, bool *result) {
-	if(!cfg)
+	if(!cfg) {
 		return false;
+	}
 
 	if(!strcasecmp(cfg->value, "yes")) {
 		*result = true;
@@ -142,27 +144,30 @@ bool get_config_bool(const config_t *cfg, bool *result) {
 	}
 
 	logger(LOG_ERR, "\"yes\" or \"no\" expected for configuration variable %s in %s line %d",
-		   cfg->variable, cfg->file, cfg->line);
+	       cfg->variable, cfg->file, cfg->line);
 
 	return false;
 }
 
 bool get_config_int(const config_t *cfg, int *result) {
-	if(!cfg)
+	if(!cfg) {
 		return false;
+	}
 
-	if(sscanf(cfg->value, "%d", result) == 1)
+	if(sscanf(cfg->value, "%d", result) == 1) {
 		return true;
+	}
 
 	logger(LOG_ERR, "Integer expected for configuration variable %s in %s line %d",
-		   cfg->variable, cfg->file, cfg->line);
+	       cfg->variable, cfg->file, cfg->line);
 
 	return false;
 }
 
 bool get_config_string(const config_t *cfg, char **result) {
-	if(!cfg)
+	if(!cfg) {
 		return false;
+	}
 
 	*result = xstrdup(cfg->value);
 
@@ -172,8 +177,9 @@ bool get_config_string(const config_t *cfg, char **result) {
 bool get_config_address(const config_t *cfg, struct addrinfo **result) {
 	struct addrinfo *ai;
 
-	if(!cfg)
+	if(!cfg) {
 		return false;
+	}
 
 	ai = str2addrinfo(cfg->value, NULL, 0);
 
@@ -183,31 +189,32 @@ bool get_config_address(const config_t *cfg, struct addrinfo **result) {
 	}
 
 	logger(LOG_ERR, "Hostname or IP address expected for configuration variable %s in %s line %d",
-		   cfg->variable, cfg->file, cfg->line);
+	       cfg->variable, cfg->file, cfg->line);
 
 	return false;
 }
 
-bool get_config_subnet(const config_t *cfg, subnet_t ** result) {
+bool get_config_subnet(const config_t *cfg, subnet_t **result) {
-	subnet_t subnet = {NULL};
+	subnet_t subnet = {0};
 
-	if(!cfg)
+	if(!cfg) {
 		return false;
+	}
 
 	if(!str2net(&subnet, cfg->value)) {
 		logger(LOG_ERR, "Subnet expected for configuration variable %s in %s line %d",
-			   cfg->variable, cfg->file, cfg->line);
+		       cfg->variable, cfg->file, cfg->line);
 		return false;
 	}
 
 	/* Teach newbies what subnets are... */
 
 	if(((subnet.type == SUBNET_IPV4)
-		&& !maskcheck(&subnet.net.ipv4.address, subnet.net.ipv4.prefixlength, sizeof(ipv4_t)))
+	                && !maskcheck(&subnet.net.ipv4.address, subnet.net.ipv4.prefixlength, sizeof(ipv4_t)))
-		|| ((subnet.type == SUBNET_IPV6)
+	                || ((subnet.type == SUBNET_IPV6)
-		&& !maskcheck(&subnet.net.ipv6.address, subnet.net.ipv6.prefixlength, sizeof(ipv6_t)))) {
+	                    && !maskcheck(&subnet.net.ipv6.address, subnet.net.ipv6.prefixlength, sizeof(ipv6_t)))) {
 		logger(LOG_ERR, "Network address and prefix length do not match for configuration variable %s in %s line %d",
-			   cfg->variable, cfg->file, cfg->line);
+		       cfg->variable, cfg->file, cfg->line);
 		return false;
 	}
 
@@ -219,26 +226,31 @@ bool get_config_subnet(const config_t *cfg, subnet_t ** result) {
 /*
   Read exactly one line and strip the trailing newline if any.
 */
-static char *readline(FILE * fp, char *buf, size_t buflen) {
+static char *readline(FILE *fp, char *buf, size_t buflen) {
 	char *newline = NULL;
 	char *p;
 
-	if(feof(fp))
+	if(feof(fp)) {
 		return NULL;
+	}
 
 	p = fgets(buf, buflen, fp);
 
-	if(!p)
+	if(!p) {
 		return NULL;
+	}
 
 	newline = strchr(p, '\n');
 
-	if(!newline)
+	if(!newline) {
 		return buf;
+	}
 
-	*newline = '\0';	/* kill newline */
+	*newline = '\0';        /* kill newline */
-	if(newline > p && newline[-1] == '\r')	/* and carriage return if necessary */
+
+	if(newline > p && newline[-1] == '\r') { /* and carriage return if necessary */
 		newline[-1] = '\0';
+	}
 
 	return buf;
 }
@@ -250,26 +262,32 @@ config_t *parse_config_line(char *line, const char *fname, int lineno) {
 	variable = value = line;
 
 	eol = line + strlen(line);
-	while(strchr("\t ", *--eol))
+
+	while(strchr("\t ", *--eol)) {
 		*eol = '\0';
+	}
 
 	len = strcspn(value, "\t =");
 	value += len;
 	value += strspn(value, "\t ");
+
 	if(*value == '=') {
 		value++;
 		value += strspn(value, "\t ");
 	}
+
 	variable[len] = '\0';
 
 	if(!*value) {
 		const char err[] = "No value for variable";
-		if (fname)
+
+		if(fname)
 			logger(LOG_ERR, "%s `%s' on line %d while reading config file %s",
-				err, variable, lineno, fname);
+			       err, variable, lineno, fname);
 		else
 			logger(LOG_ERR, "%s `%s' in command line option %d",
-				err, variable, lineno);
+			       err, variable, lineno);
+
 		return NULL;
 	}
 
@@ -303,33 +321,41 @@ bool read_config_file(avl_tree_t *config_tree, const char *fname) {
 	}
 
 	for(;;) {
-		line = readline(fp, buffer, sizeof buffer);
+		line = readline(fp, buffer, sizeof(buffer));
 
 		if(!line) {
-			if(feof(fp))
+			if(feof(fp)) {
 				result = true;
+			}
+
 			break;
 		}
 
 		lineno++;
 
-		if(!*line || *line == '#')
+		if(!*line || *line == '#') {
-			continue;
-
-		if(ignore) {
-			if(!strncmp(line, "-----END", 8))
-				ignore = false;
 			continue;
 		}
-		
+
+		if(ignore) {
+			if(!strncmp(line, "-----END", 8)) {
+				ignore = false;
+			}
+
+			continue;
+		}
+
 		if(!strncmp(line, "-----BEGIN", 10)) {
 			ignore = true;
 			continue;
 		}
 
 		cfg = parse_config_line(line, fname, lineno);
-		if (!cfg)
+
+		if(!cfg) {
 			break;
+		}
+
 		config_add(config_tree, cfg);
 	}
 
@@ -339,63 +365,92 @@ bool read_config_file(avl_tree_t *config_tree, const char *fname) {
 }
 
 void read_config_options(avl_tree_t *config_tree, const char *prefix) {
-	list_node_t *node, *next;
 	size_t prefix_len = prefix ? strlen(prefix) : 0;
 
-	for(node = cmdline_conf->tail; node; node = next) {
+	for(const list_node_t *node = cmdline_conf->tail; node; node = node->prev) {
-		config_t *orig_cfg, *cfg = (config_t *)node->data;
+		const config_t *cfg = node->data;
-		next = node->prev;
 
 		if(!prefix) {
-			if(strchr(cfg->variable, '.'))
+			if(strchr(cfg->variable, '.')) {
 				continue;
-			node->data = NULL;
+			}
-			list_unlink_node(cmdline_conf, node);
 		} else {
 			if(strncmp(prefix, cfg->variable, prefix_len) ||
-			   cfg->variable[prefix_len] != '.')
+			                cfg->variable[prefix_len] != '.') {
 				continue;
-			/* Because host configuration is parsed again when
+			}
-			   reconnecting, nodes must not be freed when a prefix
-			   is given. */
-			orig_cfg = cfg;
-			cfg = new_config();
-			cfg->variable = xstrdup(orig_cfg->variable + prefix_len + 1);
-			cfg->value = xstrdup(orig_cfg->value);
-			cfg->file = NULL;
-			cfg->line = orig_cfg->line;
 		}
-		config_add(config_tree, cfg);
+
+		config_t *new = new_config();
+
+		if(prefix) {
+			new->variable = xstrdup(cfg->variable + prefix_len + 1);
+		} else {
+			new->variable = xstrdup(cfg->variable);
+		}
+
+		new->value = xstrdup(cfg->value);
+		new->file = NULL;
+		new->line = cfg->line;
+
+		config_add(config_tree, new);
 	}
 }
 
 bool read_server_config(void) {
-	char *fname;
+	char fname[PATH_MAX];
 	bool x;
 
 	read_config_options(config_tree, NULL);
 
-	xasprintf(&fname, "%s/tinc.conf", confbase);
+	snprintf(fname, sizeof(fname), "%s/tinc.conf", confbase);
+	errno = 0;
 	x = read_config_file(config_tree, fname);
 
-	if(!x) {				/* System error: complain */
+	// We will try to read the conf files in the "conf.d" dir
-		logger(LOG_ERR, "Failed to read `%s': %s", fname, strerror(errno));
+	if(x) {
+		char dname[PATH_MAX];
+		snprintf(dname, sizeof(dname), "%s/conf.d", confbase);
+		DIR *dir = opendir(dname);
+
+		// If we can find this dir
+		if(dir) {
+			struct dirent *ep;
+
+			// We list all the files in it
+			while(x && (ep = readdir(dir))) {
+				size_t l = strlen(ep->d_name);
+
+				// And we try to read the ones that end with ".conf"
+				if(l > 5 && !strcmp(".conf", & ep->d_name[ l - 5 ])) {
+					if((size_t)snprintf(fname, sizeof(fname), "%s/%s", dname, ep->d_name) >= sizeof(fname)) {
+						logger(LOG_ERR, "Pathname too long: %s/%s", dname, ep->d_name);
+						return false;
+					}
+
+					x = read_config_file(config_tree, fname);
+				}
+			}
+
+			closedir(dir);
+		}
 	}
 
-	free(fname);
+	if(!x && errno) {
+		logger(LOG_ERR, "Failed to read `%s': %s", fname, strerror(errno));
+	}
 
 	return x;
 }
 
 bool read_connection_config(connection_t *c) {
-	char *fname;
+	char fname[PATH_MAX];
 	bool x;
 
 	read_config_options(c->config_tree, c->name);
 
-	xasprintf(&fname, "%s/hosts/%s", confbase, c->name);
+	snprintf(fname, sizeof(fname), "%s/hosts/%s", confbase, c->name);
 	x = read_config_file(c->config_tree, fname);
-	free(fname);
 
 	return x;
 }
@@ -407,34 +462,43 @@ static void disable_old_keys(const char *filename) {
 	FILE *r, *w;
 
 	r = fopen(filename, "r");
-	if(!r)
+
+	if(!r) {
 		return;
+	}
 
-	snprintf(tmpfile, sizeof tmpfile, "%s.tmp", filename);
+	int len = snprintf(tmpfile, sizeof(tmpfile), "%s.tmp", filename);
 
-	w = fopen(tmpfile, "w");
+	if(len < 0 || len >= PATH_MAX) {
+		fprintf(stderr, "Pathname too long: %s.tmp\n", filename);
+		w = NULL;
+	} else {
+		w = fopen(tmpfile, "w");
+	}
 
-	while(fgets(buf, sizeof buf, r)) {
+	while(fgets(buf, sizeof(buf), r)) {
-		if(!strncmp(buf, "-----BEGIN RSA", 14)) {	
+		if(!strncmp(buf, "-----BEGIN RSA", 14)) {
 			buf[11] = 'O';
 			buf[12] = 'L';
 			buf[13] = 'D';
 			disabled = true;
-		}
+		} else if(!strncmp(buf, "-----END RSA", 12)) {
-		else if(!strncmp(buf, "-----END RSA", 12)) {	
 			buf[ 9] = 'O';
 			buf[10] = 'L';
 			buf[11] = 'D';
 			disabled = true;
 		}
+
 		if(w && fputs(buf, w) < 0) {
 			disabled = false;
 			break;
 		}
 	}
 
-	if(w)
+	if(w) {
 		fclose(w);
+	}
+
 	fclose(r);
 
 	if(!w && disabled) {
@@ -446,10 +510,12 @@ static void disable_old_keys(const char *filename) {
 #ifdef HAVE_MINGW
 		// We cannot atomically replace files on Windows.
 		char bakfile[PATH_MAX] = "";
-		snprintf(bakfile, sizeof bakfile, "%s.bak", filename);
+		snprintf(bakfile, sizeof(bakfile), "%s.bak", filename);
+
 		if(rename(filename, bakfile) || rename(tmpfile, filename)) {
 			rename(bakfile, filename);
 #else
+
 		if(rename(tmpfile, filename)) {
 #endif
 			fprintf(stderr, "Warning: old key(s) found, remove them by hand!\n");
@@ -466,8 +532,9 @@ static void disable_old_keys(const char *filename) {
 
 FILE *ask_and_open(const char *filename, const char *what) {
 	FILE *r;
-	char *directory;
+	char directory[PATH_MAX];
 	char line[PATH_MAX];
+	char abspath[PATH_MAX];
 	const char *fn;
 
 	/* Check stdin and stdout */
@@ -479,37 +546,43 @@ FILE *ask_and_open(const char *filename, const char *what) {
 	} else {
 		/* Ask for a file and/or directory name. */
 		fprintf(stdout, "Please enter a file to save %s to [%s]: ",
-				what, filename);
+		        what, filename);
 		fflush(stdout);
 
-		fn = readline(stdin, line, sizeof line);
+		fn = readline(stdin, line, sizeof(line));
 
 		if(!fn) {
 			fprintf(stderr, "Error while reading stdin: %s\n",
-					strerror(errno));
+			        strerror(errno));
 			return NULL;
 		}
 
 		if(!strlen(fn))
 			/* User just pressed enter. */
+		{
 			fn = filename;
+		}
 	}
 
 #ifdef HAVE_MINGW
+
 	if(fn[0] != '\\' && fn[0] != '/' && !strchr(fn, ':')) {
 #else
+
 	if(fn[0] != '/') {
 #endif
 		/* The directory is a relative path or a filename. */
-		char *p;
+		getcwd(directory, sizeof(directory));
 
-		directory = get_current_dir_name();
+		if((size_t)snprintf(abspath, sizeof(abspath), "%s/%s", directory, fn) >= sizeof(abspath)) {
-		xasprintf(&p, "%s/%s", directory, fn);
+			fprintf(stderr, "Pathname too long: %s/%s\n", directory, fn);
-		free(directory);
+			return NULL;
-		fn = p;
+		}
+
+		fn = abspath;
 	}
 
-	umask(0077);				/* Disallow everything for group and other */
+	umask(0077);                            /* Disallow everything for group and other */
 
 	disable_old_keys(fn);
 
@@ -519,7 +592,7 @@ FILE *ask_and_open(const char *filename, const char *what) {
 
 	if(!r) {
 		fprintf(stderr, "Error opening file `%s': %s\n",
-				fn, strerror(errno));
+		        fn, strerror(errno));
 		return NULL;
 	}
 

src/conf.h

@@ -1,3 +1,6 @@
+#ifndef TINC_CONF_H
+#define TINC_CONF_H
+
 /*
     conf.h -- header for conf.c
     Copyright (C) 1998-2005 Ivo Timmermans
@@ -18,9 +21,6 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#ifndef __TINC_CONF_H__
-#define __TINC_CONF_H__
-
 #include "avl_tree.h"
 #include "list.h"
 
@@ -38,30 +38,30 @@ extern avl_tree_t *config_tree;
 extern int pinginterval;
 extern int pingtimeout;
 extern int maxtimeout;
+extern int mintimeout;
 extern bool bypass_security;
 extern char *confbase;
 extern char *netname;
 extern list_t *cmdline_conf;
 
-extern void init_configuration(avl_tree_t **);
+extern void init_configuration(avl_tree_t **config_tree);
-extern void exit_configuration(avl_tree_t **);
+extern void exit_configuration(avl_tree_t **config_tree);
-extern config_t *new_config(void) __attribute__ ((__malloc__));
+extern config_t *new_config(void) __attribute__((__malloc__));
-extern void free_config(config_t *);
+extern void free_config(config_t *cfg);
-extern void config_add(avl_tree_t *, config_t *);
+extern void config_add(avl_tree_t *config_tree, config_t *cfg);
-extern config_t *lookup_config(const avl_tree_t *, char *);
+extern config_t *lookup_config(const avl_tree_t *config_tree, char *variable);
-extern config_t *lookup_config_next(const avl_tree_t *, const config_t *);
+extern config_t *lookup_config_next(const avl_tree_t *config_tree, const config_t *cfg);
-extern bool get_config_bool(const config_t *, bool *);
+extern bool get_config_bool(const config_t *cfg, bool *result);
-extern bool get_config_int(const config_t *, int *);
+extern bool get_config_int(const config_t *cfg, int *result);
-extern bool get_config_string(const config_t *, char **);
+extern bool get_config_string(const config_t *cfg, char **result);
-extern bool get_config_address(const config_t *, struct addrinfo **);
+extern bool get_config_address(const config_t *cfg, struct addrinfo **result);
-extern bool get_config_subnet(const config_t *, struct subnet_t **);
+extern bool get_config_subnet(const config_t *cfg, struct subnet_t **result);
 
-extern config_t *parse_config_line(char *, const char *, int);
+extern config_t *parse_config_line(char *line, const char *fname, int lineno);
-extern bool read_config_file(avl_tree_t *, const char *);
+extern bool read_config_file(avl_tree_t *config_tree, const char *fname);
-extern void read_config_options(avl_tree_t *, const char *);
+extern void read_config_options(avl_tree_t *config_tree, const char *prefix);
 extern bool read_server_config(void);
-extern bool read_connection_config(struct connection_t *);
+extern bool read_connection_config(struct connection_t *c);
-extern FILE *ask_and_open(const char *, const char *);
+extern FILE *ask_and_open(const char *fname, const char *what);
-extern bool is_safe_path(const char *);
 
-#endif							/* __TINC_CONF_H__ */
+#endif

src/connection.c

@@ -1,6 +1,6 @@
 /*
     connection.c -- connection list management
-    Copyright (C) 2000-2012 Guus Sliepen <guus@tinc-vpn.org>,
+    Copyright (C) 2000-2016 Guus Sliepen <guus@tinc-vpn.org>,
                   2000-2005 Ivo Timmermans
                   2008      Max Rijevski <maksuf@gmail.com>
 
@@ -28,7 +28,7 @@
 #include "utils.h"
 #include "xalloc.h"
 
-avl_tree_t *connection_tree;	/* Meta connections */
+avl_tree_t *connection_tree;    /* Meta connections */
 connection_t *everyone;
 
 static int connection_compare(const connection_t *a, const connection_t *b) {
@@ -52,8 +52,9 @@ connection_t *new_connection(void) {
 
 	c = xmalloc_and_zero(sizeof(connection_t));
 
-	if(!c)
+	if(!c) {
 		return NULL;
+	}
 
 	gettimeofday(&c->start, NULL);
 
@@ -91,15 +92,17 @@ void free_connection_partially(connection_t *c) {
 	c->outbufstart = 0;
 	c->last_ping_time = 0;
 	c->last_flushed_time = 0;
+	c->inbudget = 0;
+	c->outbudget = 0;
 
 	if(c->inctx) {
-		EVP_CIPHER_CTX_cleanup(c->inctx);
+		EVP_CIPHER_CTX_reset(c->inctx);
 		free(c->inctx);
 		c->inctx = NULL;
 	}
 
 	if(c->outctx) {
-		EVP_CIPHER_CTX_cleanup(c->outctx);
+		EVP_CIPHER_CTX_reset(c->outctx);
 		free(c->outctx);
 		c->outctx = NULL;
 	}
@@ -116,8 +119,9 @@ void free_connection(connection_t *c) {
 	free(c->name);
 	free(c->hostname);
 
-	if(c->config_tree)
+	if(c->config_tree) {
 		exit_configuration(&c->config_tree);
+	}
 
 	free(c);
 }
@@ -139,8 +143,8 @@ void dump_connections(void) {
 	for(node = connection_tree->head; node; node = node->next) {
 		c = node->data;
 		logger(LOG_DEBUG, " %s at %s options %x socket %d status %04x outbuf %d/%d/%d",
-			   c->name, c->hostname, c->options, c->socket, bitfield_to_int(&c->status, sizeof c->status),
+		       c->name, c->hostname, c->options, c->socket, bitfield_to_int(&c->status, sizeof(c->status)),
-			   c->outbufsize, c->outbufstart, c->outbuflen);
+		       c->outbufsize, c->outbufstart, c->outbuflen);
 	}
 
 	logger(LOG_DEBUG, "End of connections.");

src/connection.h

@@ -1,6 +1,9 @@
+#ifndef TINC_CONNECTION_H
+#define TINC_CONNECTION_H
+
 /*
     connection.h -- header for connection.c
-    Copyright (C) 2000-2012 Guus Sliepen <guus@tinc-vpn.org>,
+    Copyright (C) 2000-2016 Guus Sliepen <guus@tinc-vpn.org>,
                   2000-2005 Ivo Timmermans
 
     This program is free software; you can redistribute it and/or modify
@@ -18,30 +21,33 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#ifndef __TINC_CONNECTION_H__
-#define __TINC_CONNECTION_H__
-
 #include <openssl/rsa.h>
 #include <openssl/evp.h>
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#define EVP_CIPHER_CTX_reset(c) EVP_CIPHER_CTX_cleanup(c)
+#endif
+
 #include "avl_tree.h"
 
-#define OPTION_INDIRECT		0x0001
+#define OPTION_INDIRECT         0x0001
-#define OPTION_TCPONLY		0x0002
+#define OPTION_TCPONLY          0x0002
-#define OPTION_PMTU_DISCOVERY	0x0004
+#define OPTION_PMTU_DISCOVERY   0x0004
-#define OPTION_CLAMP_MSS	0x0008
+#define OPTION_CLAMP_MSS        0x0008
 
 typedef struct connection_status_t {
-	unsigned int pinged:1;				/* sent ping */
+	unsigned int pinged: 1;         /* sent ping */
-	unsigned int active:1;				/* 1 if active.. */
+	unsigned int active: 1;         /* 1 if active.. */
-	unsigned int connecting:1;			/* 1 if we are waiting for a non-blocking connect() to finish */
+	unsigned int connecting: 1;     /* 1 if we are waiting for a non-blocking connect() to finish */
-	unsigned int unused_termreq:1;			/* the termination of this connection was requested */
+	unsigned int unused_termreq: 1; /* the termination of this connection was requested */
-	unsigned int remove:1;				/* Set to 1 if you want this connection removed */
+	unsigned int remove: 1;         /* Set to 1 if you want this connection removed */
-	unsigned int timeout:1;				/* 1 if gotten timeout */
+	unsigned int timeout: 1;        /* 1 if gotten timeout */
-	unsigned int encryptout:1;			/* 1 if we can encrypt outgoing traffic */
+	unsigned int encryptout: 1;     /* 1 if we can encrypt outgoing traffic */
-	unsigned int decryptin:1;			/* 1 if we have to decrypt incoming traffic */
+	unsigned int decryptin: 1;      /* 1 if we have to decrypt incoming traffic */
-	unsigned int mst:1;				/* 1 if this connection is part of a minimum spanning tree */
+	unsigned int mst: 1;            /* 1 if this connection is part of a minimum spanning tree */
-	unsigned int unused:23;
+	unsigned int proxy_passed: 1;   /* 1 if we are connecting via a proxy and we have finished talking with it */
+	unsigned int tarpit: 1;         /* 1 if the connection should be added to the tarpit */
+	unsigned int unused: 21;
 } connection_status_t;
 
 #include "edge.h"
@@ -49,55 +55,57 @@ typedef struct connection_status_t {
 #include "node.h"
 
 typedef struct connection_t {
-	char *name;					/* name he claims to have */
+	char *name;                     /* name he claims to have */
 
-	union sockaddr_t address;			/* his real (internet) ip */
+	union sockaddr_t address;       /* his real (internet) ip */
-	char *hostname;				/* the hostname of its real ip */
+	char *hostname;                 /* the hostname of its real ip */
-	int protocol_version;		/* used protocol */
+	int protocol_version;           /* used protocol */
 
-	int socket;					/* socket used for this connection */
+	int socket;                     /* socket used for this connection */
-	uint32_t options;			/* options for this connection */
+	uint32_t options;               /* options for this connection */
-	connection_status_t status;	/* status info */
+	connection_status_t status;     /* status info */
-	int estimated_weight;		/* estimation for the weight of the edge for this connection */
+	int estimated_weight;           /* estimation for the weight of the edge for this connection */
-	struct timeval start;		/* time this connection was started, used for above estimation */
+	struct timeval start;           /* time this connection was started, used for above estimation */
-	struct outgoing_t *outgoing;	/* used to keep track of outgoing connections */
+	struct outgoing_t *outgoing;    /* used to keep track of outgoing connections */
 
-	struct node_t *node;		/* node associated with the other end */
+	struct node_t *node;            /* node associated with the other end */
-	struct edge_t *edge;		/* edge associated with this connection */
+	struct edge_t *edge;            /* edge associated with this connection */
 
-	RSA *rsa_key;				/* his public/private key */
+	RSA *rsa_key;                   /* his public/private key */
-	const EVP_CIPHER *incipher;	/* Cipher he will use to send data to us */
+	const EVP_CIPHER *incipher;     /* Cipher he will use to send data to us */
-	const EVP_CIPHER *outcipher;	/* Cipher we will use to send data to him */
+	const EVP_CIPHER *outcipher;    /* Cipher we will use to send data to him */
-	EVP_CIPHER_CTX *inctx;		/* Context of encrypted meta data that will come from him to us */
+	EVP_CIPHER_CTX *inctx;          /* Context of encrypted meta data that will come from him to us */
-	EVP_CIPHER_CTX *outctx;		/* Context of encrypted meta data that will be sent from us to him */
+	EVP_CIPHER_CTX *outctx;         /* Context of encrypted meta data that will be sent from us to him */
-	char *inkey;				/* His symmetric meta key + iv */
+	uint64_t inbudget;              /* Encrypted bytes send budget */
-	char *outkey;				/* Our symmetric meta key + iv */
+	uint64_t outbudget;             /* Encrypted bytes receive budget */
-	int inkeylength;			/* Length of his key + iv */
+	char *inkey;                    /* His symmetric meta key + iv */
-	int outkeylength;			/* Length of our key + iv */
+	char *outkey;                   /* Our symmetric meta key + iv */
+	int inkeylength;                /* Length of his key + iv */
+	int outkeylength;               /* Length of our key + iv */
 	const EVP_MD *indigest;
 	const EVP_MD *outdigest;
 	int inmaclength;
 	int outmaclength;
 	int incompression;
 	int outcompression;
-	char *mychallenge;			/* challenge we received from him */
+	char *mychallenge;              /* challenge we received from him */
-	char *hischallenge;			/* challenge we sent to him */
+	char *hischallenge;             /* challenge we sent to him */
 
-	char buffer[MAXBUFSIZE];	/* metadata input buffer */
+	char buffer[MAXBUFSIZE];        /* metadata input buffer */
-	int buflen;					/* bytes read into buffer */
+	int buflen;                     /* bytes read into buffer */
-	int reqlen;					/* length of incoming request */
+	int reqlen;                     /* length of incoming request */
-	int tcplen;					/* length of incoming TCPpacket */
+	length_t tcplen;                /* length of incoming TCPpacket */
-	int allow_request;			/* defined if there's only one request possible */
+	int allow_request;              /* defined if there's only one request possible */
 
-	char *outbuf;				/* metadata output buffer */
+	char *outbuf;                   /* metadata output buffer */
-	int outbufstart;			/* index of first meaningful byte in output buffer */
+	int outbufstart;                /* index of first meaningful byte in output buffer */
-	int outbuflen;				/* number of meaningful bytes in output buffer */
+	int outbuflen;                  /* number of meaningful bytes in output buffer */
-	int outbufsize;				/* number of bytes allocated to output buffer */
+	int outbufsize;                 /* number of bytes allocated to output buffer */
 
-	time_t last_ping_time;		/* last time we saw some activity from the other end or pinged them */
+	time_t last_ping_time;          /* last time we saw some activity from the other end or pinged them */
-	time_t last_flushed_time;	/* last time buffer was empty. Only meaningful if outbuflen > 0 */
+	time_t last_flushed_time;       /* last time buffer was empty. Only meaningful if outbuflen > 0 */
 
-	avl_tree_t *config_tree;	/* Pointer to configuration tree belonging to him */
+	avl_tree_t *config_tree;        /* Pointer to configuration tree belonging to him */
 } connection_t;
 
 extern avl_tree_t *connection_tree;
@@ -105,11 +113,11 @@ extern connection_t *everyone;
 
 extern void init_connections(void);
 extern void exit_connections(void);
-extern connection_t *new_connection(void) __attribute__ ((__malloc__));
+extern connection_t *new_connection(void) __attribute__((__malloc__));
-extern void free_connection(connection_t *);
+extern void free_connection(connection_t *c);
-extern void free_connection_partially(connection_t *);
+extern void free_connection_partially(connection_t *c);
-extern void connection_add(connection_t *);
+extern void connection_add(connection_t *c);
-extern void connection_del(connection_t *);
+extern void connection_del(connection_t *c);
 extern void dump_connections(void);
 
-#endif							/* __TINC_CONNECTION_H__ */
+#endif

src/cygwin/device.c

@@ -1,7 +1,7 @@
 /*
     device.c -- Interaction with Windows tap driver in a Cygwin environment
     Copyright (C) 2002-2005 Ivo Timmermans,
-                  2002-2011 Guus Sliepen <guus@tinc-vpn.org>
+                  2002-2016 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -18,26 +18,26 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#include "system.h"
+#include "../system.h"
+#include "../net.h"
 
 #include <w32api/windows.h>
 #include <w32api/winioctl.h>
 
-#include "conf.h"
+#include "../conf.h"
-#include "device.h"
+#include "../device.h"
-#include "logger.h"
+#include "../logger.h"
-#include "net.h"
+#include "../route.h"
-#include "route.h"
+#include "../utils.h"
-#include "utils.h"
+#include "../xalloc.h"
-#include "xalloc.h"
 
-#include "mingw/common.h"
+#include "../mingw/common.h"
 
 int device_fd = -1;
 static HANDLE device_handle = INVALID_HANDLE_VALUE;
 char *device = NULL;
 char *iface = NULL;
-static char *device_info = NULL;
+static const char *device_info = "Windows tap device";
 
 static uint64_t device_total_in = 0;
 static uint64_t device_total_out = 0;
@@ -61,6 +61,10 @@ static bool setup_device(void) {
 	get_config_string(lookup_config(config_tree, "Device"), &device);
 	get_config_string(lookup_config(config_tree, "Interface"), &iface);
 
+	if(device && iface) {
+		logger(LOG_WARNING, "Warning: both Device and Interface specified, results may not be as expected");
+	}
+
 	/* Open registry and look for network adapters */
 
 	if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, NETWORK_CONNECTIONS_KEY, 0, KEY_READ, &key)) {
@@ -68,44 +72,51 @@ static bool setup_device(void) {
 		return false;
 	}
 
-	for (i = 0; ; i++) {
+	for(i = 0; ; i++) {
 		len = sizeof(adapterid);
-		if(RegEnumKeyEx(key, i, adapterid, &len, 0, 0, 0, NULL))
+
+		if(RegEnumKeyEx(key, i, adapterid, &len, 0, 0, 0, NULL)) {
 			break;
+		}
 
 		/* Find out more about this adapter */
 
 		snprintf(regpath, sizeof(regpath), "%s\\%s\\Connection", NETWORK_CONNECTIONS_KEY, adapterid);
 
-                if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, regpath, 0, KEY_READ, &key2))
+		if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, regpath, 0, KEY_READ, &key2)) {
 			continue;
+		}
 
 		len = sizeof(adaptername);
 		err = RegQueryValueEx(key2, "Name", 0, 0, adaptername, &len);
 
 		RegCloseKey(key2);
 
-		if(err)
+		if(err) {
 			continue;
+		}
 
 		if(device) {
 			if(!strcmp(device, adapterid)) {
 				found = true;
 				break;
-			} else
+			} else {
 				continue;
+			}
 		}
 
 		if(iface) {
 			if(!strcmp(iface, adaptername)) {
 				found = true;
 				break;
-			} else
+			} else {
 				continue;
+			}
 		}
 
 		snprintf(tapname, sizeof(tapname), USERMODEDEVICEDIR "%s" TAPSUFFIX, adapterid);
 		device_handle = CreateFile(tapname, GENERIC_WRITE | GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM, 0);
+
 		if(device_handle != INVALID_HANDLE_VALUE) {
 			CloseHandle(device_handle);
 			found = true;
@@ -120,14 +131,16 @@ static bool setup_device(void) {
 		return false;
 	}
 
-	if(!device)
+	if(!device) {
 		device = xstrdup(adapterid);
+	}
 
-	if(!iface)
+	if(!iface) {
 		iface = xstrdup(adaptername);
+	}
 
 	snprintf(tapname, sizeof(tapname), USERMODEDEVICEDIR "%s" TAPSUFFIX, device);
-	
+
 	/* Now we are going to open this device twice: once for reading and once for writing.
 	   We do this because apparently it isn't possible to check for activity in the select() loop.
 	   Furthermore I don't really know how to do it the "Windows" way. */
@@ -138,9 +151,9 @@ static bool setup_device(void) {
 	}
 
 	/* The parent opens the tap device for writing. */
-	
+
-	device_handle = CreateFile(tapname, GENERIC_WRITE,  FILE_SHARE_READ,  0,  OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM , 0);
+	device_handle = CreateFile(tapname, GENERIC_WRITE,  FILE_SHARE_READ,  0,  OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM, 0);
-	
+
 	if(device_handle == INVALID_HANDLE_VALUE) {
 		logger(LOG_ERR, "Could not open Windows tap device %s (%s) for writing: %s", device, iface, winerror(GetLastError()));
 		return false;
@@ -171,7 +184,7 @@ static bool setup_device(void) {
 	if(!reader_pid) {
 		/* The child opens the tap device for reading, blocking.
 		   It passes everything it reads to the socket. */
-	
+
 		char buf[MTU];
 		long lenin;
 
@@ -202,13 +215,12 @@ static bool setup_device(void) {
 	}
 
 	read(device_fd, &gelukt, 1);
+
 	if(gelukt != 1) {
 		logger(LOG_DEBUG, "Tap reader failed!");
 		return false;
 	}
 
-	device_info = "Windows tap device";
-
 	logger(LOG_INFO, "%s (%s) is a %s", device, iface, device_info);
 
 	return true;
@@ -230,16 +242,16 @@ static bool read_packet(vpn_packet_t *packet) {
 
 	if((lenin = read(sp[0], packet->data, MTU)) <= 0) {
 		logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
-			   device, strerror(errno));
+		       device, strerror(errno));
 		return false;
 	}
-	
+
 	packet->len = lenin;
 
 	device_total_in += packet->len;
 
 	ifdebug(TRAFFIC) logger(LOG_DEBUG, "Read packet of %d bytes from %s", packet->len,
-			   device_info);
+	                        device_info);
 
 	return true;
 }
@@ -248,9 +260,9 @@ static bool write_packet(vpn_packet_t *packet) {
 	long lenout;
 
 	ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
-			   packet->len, device_info);
+	                        packet->len, device_info);
 
-	if(!WriteFile (device_handle, packet->data, packet->len, &lenout, NULL)) {
+	if(!WriteFile(device_handle, packet->data, packet->len, &lenout, NULL)) {
 		logger(LOG_ERR, "Error while writing to %s %s: %s", device_info, device, winerror(GetLastError()));
 		return false;
 	}

src/device.h

@@ -1,3 +1,6 @@
+#ifndef TINC_DEVICE_H
+#define TINC_DEVICE_H
+
 /*
     device.h -- generic header for device.c
     Copyright (C) 2001-2005 Ivo Timmermans
@@ -18,9 +21,6 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#ifndef __TINC_DEVICE_H__
-#define __TINC_DEVICE_H__
-
 #include "net.h"
 
 extern int device_fd;
@@ -31,8 +31,8 @@ extern char *iface;
 typedef struct devops_t {
 	bool (*setup)(void);
 	void (*close)(void);
-	bool (*read)(struct vpn_packet_t *);
+	bool (*read)(struct vpn_packet_t *packet);
-	bool (*write)(struct vpn_packet_t *);
+	bool (*write)(struct vpn_packet_t *packet);
 	void (*dump_stats)(void);
 } devops_t;
 
@@ -44,4 +44,4 @@ extern const devops_t uml_devops;
 extern const devops_t vde_devops;
 extern devops_t devops;
 
-#endif							/* __TINC_DEVICE_H__ */
+#endif

src/dropin.c

@@ -1,7 +1,7 @@
 /*
     dropin.c -- a set of drop-in replacements for libc functions
     Copyright (C) 2000-2005 Ivo Timmermans,
-                  2000-2011 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2016 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -25,7 +25,7 @@
 #ifndef HAVE_DAEMON
 /*
   Replacement for the daemon() function.
-  
+
   The daemon() function is for programs wishing to detach themselves
   from the controlling terminal and run in the background as system
   daemons.
@@ -50,8 +50,9 @@ int daemon(int nochdir, int noclose) {
 	}
 
 	/* If we are the parent, terminate */
-	if(pid)
+	if(pid) {
 		exit(0);
+	}
 
 	/* Detach by becoming the new process group leader */
 	if(setsid() < 0) {
@@ -86,40 +87,6 @@ int daemon(int nochdir, int noclose) {
 }
 #endif
 
-#ifndef HAVE_GET_CURRENT_DIR_NAME
-/*
-  Replacement for the GNU get_current_dir_name function:
-
-  get_current_dir_name will malloc(3) an array big enough to hold the
-  current directory name.  If the environment variable PWD is set, and
-  its value is correct, then that value will be returned.
-*/
-char *get_current_dir_name(void) {
-	size_t size;
-	char *buf;
-	char *r;
-
-	/* Start with 100 bytes.  If this turns out to be insufficient to
-	   contain the working directory, double the size.  */
-	size = 100;
-	buf = xmalloc(size);
-
-	errno = 0;					/* Success */
-	r = getcwd(buf, size);
-
-	/* getcwd returns NULL and sets errno to ERANGE if the bufferspace
-	   is insufficient to contain the entire working directory.  */
-	while(r == NULL && errno == ERANGE) {
-		free(buf);
-		size <<= 1;				/* double the size */
-		buf = xmalloc(size);
-		r = getcwd(buf, size);
-	}
-
-	return buf;
-}
-#endif
-
 #ifndef HAVE_ASPRINTF
 int asprintf(char **buf, const char *fmt, ...) {
 	int result;
@@ -140,10 +107,12 @@ int vasprintf(char **buf, const char *fmt, va_list ap) {
 
 	va_copy(aq, ap);
 	status = vsnprintf(*buf, len, fmt, aq);
+	buf[len - 1] = 0;
 	va_end(aq);
 
-	if(status >= 0)
+	if(status >= 0) {
 		*buf = xrealloc(*buf, status + 1);
+	}
 
 	if(status > len - 1) {
 		len = status;

src/dropin.h

@@ -1,3 +1,6 @@
+#ifndef TINC_DROPIN_H
+#define TINC_DROPIN_H
+
 /*
     dropin.h -- header file for dropin.c
     Copyright (C) 2000-2005 Ivo Timmermans,
@@ -18,14 +21,11 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#ifndef __DROPIN_H__
-#define __DROPIN_H__
-
 #include "fake-getaddrinfo.h"
 #include "fake-getnameinfo.h"
 
 #ifndef HAVE_DAEMON
-extern int daemon(int, int);
+extern int daemon(int nochdir, int noclose);
 #endif
 
 #ifndef HAVE_GET_CURRENT_DIR_NAME
@@ -33,16 +33,16 @@ extern char *get_current_dir_name(void);
 #endif
 
 #ifndef HAVE_ASPRINTF
-extern int asprintf(char **, const char *, ...);
+extern int asprintf(char **buf, const char *fmt, ...);
-extern int vasprintf(char **, const char *, va_list ap);
+extern int vasprintf(char **buf, const char *fmt, va_list ap);
 #endif
 
 #ifndef HAVE_GETTIMEOFDAY
-extern int gettimeofday(struct timeval *, void *);
+extern int gettimeofday(struct timeval *tv, void *tz);
 #endif
 
 #ifndef HAVE_USLEEP
-extern int usleep(long long);
+extern int usleep(long long usec);
 #endif
 
-#endif							/* __DROPIN_H__ */
+#endif

src/dummy_device.c

@@ -22,23 +22,27 @@
 #include "device.h"
 #include "logger.h"
 #include "net.h"
+#include "xalloc.h"
 
-static char *device_info = "dummy device";
+static const char *device_info = "dummy device";
 
 static uint64_t device_total_in = 0;
 static uint64_t device_total_out = 0;
 
 static bool setup_device(void) {
-	device = "dummy";
+	device = xstrdup("dummy");
-	iface = "dummy";
+	iface = xstrdup("dummy");
 	logger(LOG_INFO, "%s (%s) is a %s", device, iface, device_info);
 	return true;
 }
 
 static void close_device(void) {
+	free(device);
+	free(iface);
 }
 
 static bool read_packet(vpn_packet_t *packet) {
+	(void)packet;
 	return false;
 }
 

src/edge.c

@@ -28,7 +28,7 @@
 #include "utils.h"
 #include "xalloc.h"
 
-avl_tree_t *edge_weight_tree;	/* Tree with all edges, sorted on weight */
+avl_tree_t *edge_weight_tree;   /* Tree with all edges, sorted on weight */
 
 static int edge_compare(const edge_t *a, const edge_t *b) {
 	return strcmp(a->to->name, b->to->name);
@@ -39,13 +39,15 @@ static int edge_weight_compare(const edge_t *a, const edge_t *b) {
 
 	result = a->weight - b->weight;
 
-	if(result)
+	if(result) {
 		return result;
+	}
 
 	result = strcmp(a->from->name, b->from->name);
 
-	if(result)
+	if(result) {
 		return result;
+	}
 
 	return strcmp(a->to->name, b->to->name);
 }
@@ -84,13 +86,15 @@ void edge_add(edge_t *e) {
 
 	e->reverse = lookup_edge(e->to, e->from);
 
-	if(e->reverse)
+	if(e->reverse) {
 		e->reverse->reverse = e;
+	}
 }
 
 void edge_del(edge_t *e) {
-	if(e->reverse)
+	if(e->reverse) {
 		e->reverse->reverse = NULL;
+	}
 
 	avl_delete(edge_weight_tree, e);
 	avl_delete(e->from->edge_tree, e);
@@ -98,7 +102,7 @@ void edge_del(edge_t *e) {
 
 edge_t *lookup_edge(node_t *from, node_t *to) {
 	edge_t v;
-	
+
 	v.from = from;
 	v.to = to;
 
@@ -115,11 +119,12 @@ void dump_edges(void) {
 
 	for(node = node_tree->head; node; node = node->next) {
 		n = node->data;
+
 		for(node2 = n->edge_tree->head; node2; node2 = node2->next) {
 			e = node2->data;
 			address = sockaddr2hostname(&e->address);
 			logger(LOG_DEBUG, " %s to %s at %s options %x weight %d",
-				   e->from->name, e->to->name, address, e->options, e->weight);
+			       e->from->name, e->to->name, address, e->options, e->weight);
 			free(address);
 		}
 	}

src/edge.h

@@ -1,3 +1,6 @@
+#ifndef TINC_EDGE_H
+#define TINC_EDGE_H
+
 /*
     edge.h -- header for edge.c
     Copyright (C) 2001-2006 Guus Sliepen <guus@tinc-vpn.org>,
@@ -18,9 +21,6 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#ifndef __TINC_EDGE_H__
-#define __TINC_EDGE_H__
-
 #include "avl_tree.h"
 #include "connection.h"
 #include "net.h"
@@ -31,24 +31,24 @@ typedef struct edge_t {
 	struct node_t *to;
 	sockaddr_t address;
 
-	uint32_t options;			/* options turned on for this edge */
+	uint32_t options;                /* options turned on for this edge */
-	int weight;					/* weight of this edge */
+	int weight;                      /* weight of this edge */
 
-	struct connection_t *connection;	/* connection associated with this edge, if available */
+	struct connection_t *connection; /* connection associated with this edge, if available */
-	struct edge_t *reverse;		/* edge in the opposite direction, if available */
+	struct edge_t *reverse;          /* edge in the opposite direction, if available */
 } edge_t;
 
-extern avl_tree_t *edge_weight_tree;	/* Tree with all known edges sorted on weight */
+extern avl_tree_t *edge_weight_tree;     /* Tree with all known edges sorted on weight */
 
 extern void init_edges(void);
 extern void exit_edges(void);
-extern edge_t *new_edge(void) __attribute__ ((__malloc__));
+extern edge_t *new_edge(void) __attribute__((__malloc__));
-extern void free_edge(edge_t *);
+extern void free_edge(edge_t *e);
-extern avl_tree_t *new_edge_tree(void) __attribute__ ((__malloc__));
+extern avl_tree_t *new_edge_tree(void) __attribute__((__malloc__));
-extern void free_edge_tree(avl_tree_t *);
+extern void free_edge_tree(avl_tree_t *edge_tree);
-extern void edge_add(edge_t *);
+extern void edge_add(edge_t *e);
-extern void edge_del(edge_t *);
+extern void edge_del(edge_t *e);
-extern edge_t *lookup_edge(struct node_t *, struct node_t *);
+extern edge_t *lookup_edge(struct node_t *from, struct node_t *to);
 extern void dump_edges(void);
 
-#endif							/* __TINC_EDGE_H__ */
+#endif

src/ethernet.h

@@ -1,3 +1,6 @@
+#ifndef TINC_ETHERNET_H
+#define TINC_ETHERNET_H
+
 /*
     ethernet.h -- missing Ethernet related definitions
     Copyright (C) 2005 Ivo Timmermans
@@ -18,9 +21,6 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#ifndef __TINC_ETHERNET_H__
-#define __TINC_ETHERNET_H__
-
 #ifndef ETH_ALEN
 #define ETH_ALEN 6
 #endif
@@ -50,7 +50,7 @@ struct ether_header {
 	uint8_t ether_dhost[ETH_ALEN];
 	uint8_t ether_shost[ETH_ALEN];
 	uint16_t ether_type;
-} __attribute__ ((__packed__));
+} __attribute__((__packed__));
 #endif
 
 #ifndef HAVE_STRUCT_ARPHDR
@@ -58,17 +58,17 @@ struct arphdr {
 	uint16_t ar_hrd;
 	uint16_t ar_pro;
 	uint8_t ar_hln;
-	uint8_t ar_pln; 
+	uint8_t ar_pln;
-	uint16_t ar_op; 
+	uint16_t ar_op;
-} __attribute__ ((__packed__));
+} __attribute__((__packed__));
 
-#define ARPOP_REQUEST 1 
+#define ARPOP_REQUEST 1
-#define ARPOP_REPLY 2 
+#define ARPOP_REPLY 2
-#define ARPOP_RREQUEST 3 
+#define ARPOP_RREQUEST 3
-#define ARPOP_RREPLY 4 
+#define ARPOP_RREPLY 4
-#define ARPOP_InREQUEST 8 
+#define ARPOP_InREQUEST 8
-#define ARPOP_InREPLY 9 
+#define ARPOP_InREPLY 9
-#define ARPOP_NAK 10 
+#define ARPOP_NAK 10
 #endif
 
 #ifndef HAVE_STRUCT_ETHER_ARP
@@ -78,7 +78,7 @@ struct  ether_arp {
 	uint8_t arp_spa[4];
 	uint8_t arp_tha[ETH_ALEN];
 	uint8_t arp_tpa[4];
-} __attribute__ ((__packed__));
+} __attribute__((__packed__));
 #define arp_hrd ea_hdr.ar_hrd
 #define arp_pro ea_hdr.ar_pro
 #define arp_hln ea_hdr.ar_hln
@@ -86,4 +86,4 @@ struct  ether_arp {
 #define arp_op ea_hdr.ar_op
 #endif
 
-#endif /* __TINC_ETHERNET_H__ */
+#endif

src/event.c

@@ -31,11 +31,13 @@ extern time_t now;
 static int id;
 
 static int event_compare(const event_t *a, const event_t *b) {
-	if(a->time > b->time)
+	if(a->time > b->time) {
 		return 1;
+	}
 
-	if(a->time < b->time)
+	if(a->time < b->time) {
 		return -1;
+	}
 
 	return a->id - b->id;
 }
@@ -54,19 +56,22 @@ void expire_events(void) {
 	time_t diff;
 
 	/*
-	 * Make all events appear expired by substracting the difference between
+	 * Make all events appear expired by subtracting the difference between
-         * the expiration time of the last event and the current time.
+	 * the expiration time of the last event and the current time.
 	 */
 
-	if(!event_tree->tail)
+	if(!event_tree->tail) {
 		return;
+	}
 
 	event = event_tree->tail->data;
-	if(event->time <= now)
+
+	if(event->time <= now) {
 		return;
+	}
 
 	diff = event->time - now;
-	
+
 	for(node = event_tree->head; node; node = node->next) {
 		event = node->data;
 		event->time -= diff;
@@ -108,7 +113,9 @@ event_t *get_expired_event(void) {
 }
 
 event_t *peek_next_event(void) {
-	if (event_tree->head)
+	if(event_tree->head) {
 		return event_tree->head->data;
+	}
+
 	return NULL;
 }

src/event.h

@@ -1,3 +1,6 @@
+#ifndef TINC_EVENT_H
+#define TINC_EVENT_H
+
 /*
     event.h -- header for event.c
     Copyright (C) 2002-2009 Guus Sliepen <guus@tinc-vpn.org>,
@@ -18,9 +21,6 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#ifndef __TINC_EVENT_H__
-#define __TINC_EVENT_H__
-
 #include "avl_tree.h"
 
 extern avl_tree_t *event_tree;
@@ -37,11 +37,11 @@ typedef struct event {
 extern void init_events(void);
 extern void exit_events(void);
 extern void expire_events(void);
-extern event_t *new_event(void) __attribute__ ((__malloc__));
+extern event_t *new_event(void) __attribute__((__malloc__));
-extern void free_event(event_t *);
+extern void free_event(event_t *event);
-extern void event_add(event_t *);
+extern void event_add(event_t *event);
-extern void event_del(event_t *);
+extern void event_del(event_t *event);
 extern event_t *get_expired_event(void);
 extern event_t *peek_next_event(void);
 
-#endif							/* __TINC_EVENT_H__ */
+#endif

src/fake-getaddrinfo.c

@@ -2,10 +2,10 @@
  * fake library for ssh
  *
  * This file includes getaddrinfo(), freeaddrinfo() and gai_strerror().
- * These funtions are defined in rfc2133.
+ * These functions are defined in rfc2133.
  *
  * But these functions are not implemented correctly. The minimum subset
- * is implemented for ssh use only. For exapmle, this routine assumes
+ * is implemented for ssh use only. For example, this routine assumes
  * that ai_family is AF_INET. Don't use it for another purpose.
  */
 
@@ -17,24 +17,25 @@
 #include "xalloc.h"
 
 #if !HAVE_DECL_GAI_STRERROR
-char *gai_strerror(int ecode)
+char *gai_strerror(int ecode) {
-{
+	switch(ecode) {
-	switch (ecode) {
+	case EAI_NODATA:
-		case EAI_NODATA:
+		return "No address associated with hostname";
-			return "No address associated with hostname";
+
-		case EAI_MEMORY:
+	case EAI_MEMORY:
-			return "Memory allocation failure";
+		return "Memory allocation failure";
-		case EAI_FAMILY:
+
-			return "Address family not supported";
+	case EAI_FAMILY:
-		default:
+		return "Address family not supported";
-			return "Unknown error";
+
+	default:
+		return "Unknown error";
 	}
-}    
+}
 #endif /* !HAVE_GAI_STRERROR */
 
 #if !HAVE_DECL_FREEADDRINFO
-void freeaddrinfo(struct addrinfo *ai)
+void freeaddrinfo(struct addrinfo *ai) {
-{
 	struct addrinfo *next;
 
 	while(ai) {
@@ -46,56 +47,58 @@ void freeaddrinfo(struct addrinfo *ai)
 #endif /* !HAVE_FREEADDRINFO */
 
 #if !HAVE_DECL_GETADDRINFO
-static struct addrinfo *malloc_ai(uint16_t port, uint32_t addr)
+static struct addrinfo *malloc_ai(uint16_t port, uint32_t addr) {
-{
 	struct addrinfo *ai;
 
 	ai = xmalloc_and_zero(sizeof(struct addrinfo) + sizeof(struct sockaddr_in));
-	
+
 	ai->ai_addr = (struct sockaddr *)(ai + 1);
 	ai->ai_addrlen = sizeof(struct sockaddr_in);
 	ai->ai_addr->sa_family = ai->ai_family = AF_INET;
 
 	((struct sockaddr_in *)(ai)->ai_addr)->sin_port = port;
 	((struct sockaddr_in *)(ai)->ai_addr)->sin_addr.s_addr = addr;
-	
+
 	return ai;
 }
 
-int getaddrinfo(const char *hostname, const char *servname, const struct addrinfo *hints, struct addrinfo **res)
+int getaddrinfo(const char *hostname, const char *servname, const struct addrinfo *hints, struct addrinfo **res) {
-{
 	struct addrinfo *prev = NULL;
 	struct hostent *hp;
 	struct in_addr in = {0};
 	int i;
 	uint16_t port = 0;
 
-	if(hints && hints->ai_family != AF_INET && hints->ai_family != AF_UNSPEC)
+	if(hints && hints->ai_family != AF_INET && hints->ai_family != AF_UNSPEC) {
 		return EAI_FAMILY;
+	}
 
-	if (servname)
+	if(servname) {
 		port = htons(atoi(servname));
+	}
 
-	if (hints && hints->ai_flags & AI_PASSIVE) {
+	if(hints && hints->ai_flags & AI_PASSIVE) {
 		*res = malloc_ai(port, htonl(0x00000000));
 		return 0;
 	}
-		
+
-	if (!hostname) {
+	if(!hostname) {
 		*res = malloc_ai(port, htonl(0x7f000001));
 		return 0;
 	}
-	
+
 	hp = gethostbyname(hostname);
 
-	if(!hp || !hp->h_addr_list || !hp->h_addr_list[0])
+	if(!hp || !hp->h_addr_list || !hp->h_addr_list[0]) {
 		return EAI_NODATA;
+	}
 
-	for (i = 0; hp->h_addr_list[i]; i++) {
+	for(i = 0; hp->h_addr_list[i]; i++) {
 		*res = malloc_ai(port, ((struct in_addr *)hp->h_addr_list[i])->s_addr);
 
-		if(prev)
+		if(prev) {
 			prev->ai_next = *res;
+		}
 
 		prev = *res;
 	}

src/fake-getaddrinfo.h

@@ -0,0 +1,57 @@
+#ifndef TINC_FAKE_GETADDRINFO_H
+#define TINC_FAKE_GETADDRINFO_H
+
+#ifndef EAI_NODATA
+#define EAI_NODATA      1
+#endif
+
+#ifndef EAI_MEMORY
+#define EAI_MEMORY      2
+#endif
+
+#ifndef EAI_FAMILY
+#define EAI_FAMILY      3
+#endif
+
+#ifndef AI_PASSIVE
+# define AI_PASSIVE        1
+# define AI_CANONNAME      2
+#endif
+
+#ifndef NI_NUMERICHOST
+# define NI_NUMERICHOST    2
+# define NI_NAMEREQD       4
+# define NI_NUMERICSERV    8
+#endif
+
+#ifndef AI_NUMERICHOST
+#define AI_NUMERICHOST 4
+#endif
+
+#ifndef HAVE_STRUCT_ADDRINFO
+struct addrinfo {
+	int     ai_flags;         /* AI_PASSIVE, AI_CANONNAME */
+	int     ai_family;        /* PF_xxx */
+	int     ai_socktype;      /* SOCK_xxx */
+	int     ai_protocol;      /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
+	size_t  ai_addrlen;       /* length of ai_addr */
+	char    *ai_canonname;    /* canonical name for hostname */
+	struct sockaddr *ai_addr; /* binary address */
+	struct addrinfo *ai_next; /* next structure in linked list */
+};
+#endif /* !HAVE_STRUCT_ADDRINFO */
+
+#if !HAVE_DECL_GETADDRINFO
+int getaddrinfo(const char *hostname, const char *servname,
+                const struct addrinfo *hints, struct addrinfo **res);
+#endif /* !HAVE_GETADDRINFO */
+
+#if !HAVE_DECL_GAI_STRERROR
+char *gai_strerror(int ecode);
+#endif /* !HAVE_GAI_STRERROR */
+
+#if !HAVE_DECL_FREEADDRINFO
+void freeaddrinfo(struct addrinfo *ai);
+#endif /* !HAVE_FREEADDRINFO */
+
+#endif

src/fake-getnameinfo.c

@@ -2,10 +2,10 @@
  * fake library for ssh
  *
  * This file includes getnameinfo().
- * These funtions are defined in rfc2133.
+ * These functions are defined in rfc2133.
  *
  * But these functions are not implemented correctly. The minimum subset
- * is implemented for ssh use only. For exapmle, this routine assumes
+ * is implemented for ssh use only. For example, this routine assumes
  * that ai_family is AF_INET. Don't use it for another purpose.
  */
 
@@ -16,39 +16,48 @@
 
 #if !HAVE_DECL_GETNAMEINFO
 
-int getnameinfo(const struct sockaddr *sa, size_t salen, char *host, size_t hostlen, char *serv, size_t servlen, int flags)
+int getnameinfo(const struct sockaddr *sa, size_t salen, char *host, size_t hostlen, char *serv, size_t servlen, int flags) {
-{
 	struct sockaddr_in *sin = (struct sockaddr_in *)sa;
 	struct hostent *hp;
 	int len;
 
-	if(sa->sa_family != AF_INET)
+	if(sa->sa_family != AF_INET) {
 		return EAI_FAMILY;
+	}
 
 	if(serv && servlen) {
 		len = snprintf(serv, servlen, "%d", ntohs(sin->sin_port));
-		if(len < 0 || len >= servlen)
+
+		if(len < 0 || len >= servlen) {
 			return EAI_MEMORY;
+		}
 	}
 
-	if(!host || !hostlen)
+	if(!host || !hostlen) {
 		return 0;
+	}
 
 	if(flags & NI_NUMERICHOST) {
 		len = snprintf(host, hostlen, "%s", inet_ntoa(sin->sin_addr));
-		if(len < 0 || len >= hostlen)
+
+		if(len < 0 || len >= hostlen) {
 			return EAI_MEMORY;
+		}
+
 		return 0;
 	}
 
 	hp = gethostbyaddr((char *)&sin->sin_addr, sizeof(struct in_addr), AF_INET);
-	
+
-	if(!hp || !hp->h_name || !hp->h_name[0])
+	if(!hp || !hp->h_name || !hp->h_name[0]) {
 		return EAI_NODATA;
-	
+	}
+
 	len = snprintf(host, hostlen, "%s", hp->h_name);
-	if(len < 0 || len >= hostlen)
+
+	if(len < 0 || len >= hostlen) {
 		return EAI_MEMORY;
+	}
 
 	return 0;
 }

src/fake-getnameinfo.h

@@ -1,8 +1,8 @@
-#ifndef _FAKE_GETNAMEINFO_H
+#ifndef TINC_FAKE_GETNAMEINFO_H
-#define _FAKE_GETNAMEINFO_H
+#define TINC_FAKE_GETNAMEINFO_H
 
 #if !HAVE_DECL_GETNAMEINFO
-int getnameinfo(const struct sockaddr *sa, size_t salen, char *host, 
+int getnameinfo(const struct sockaddr *sa, size_t salen, char *host,
                 size_t hostlen, char *serv, size_t servlen, int flags);
 #endif /* !HAVE_GETNAMEINFO */
 
@@ -13,4 +13,4 @@ int getnameinfo(const struct sockaddr *sa, size_t salen, char *host,
 # define NI_MAXHOST 1025
 #endif /* !NI_MAXHOST */
 
-#endif /* _FAKE_GETNAMEINFO_H */
+#endif