j3d1/tinc
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Porting to SunOS 5.8:

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- Include all header files necessary
- Check for flock() function
This commit is contained in:
Guus Sliepen 2000-11-07 22:33:33 +00:00
parent 7d0f82bd4b
commit 56bd0864e4
2 changed files with 9 additions and 3 deletions
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4
configure.in
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@ -1,6 +1,6 @@
dnl Process this file with autoconf to produce a configure script.
dnl $Id: configure.in,v 1.13.2.13 2000/11/02 21:38:55 zarq Exp $
dnl $Id: configure.in,v 1.13.2.14 2000/11/07 22:33:33 guus Exp $
AC_INIT(src/tincd.c)
AM_INIT_AUTOMAKE(tinc, 1.0pre3)
@ -46,7 +46,7 @@ dnl Checks for library functions.
AC_FUNC_MEMCMP
AC_FUNC_ALLOCA
AC_TYPE_SIGNAL
AC_CHECK_FUNCS(ftime socket select strtol strerror)
AC_CHECK_FUNCS(ftime socket select strtol strerror flock)
jm_FUNC_MALLOC
jm_FUNC_REALLOC

8
lib/pidfile.c
View file

@ -32,6 +32,8 @@
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <sys/types.h>
#include <fcntl.h>
/* read_pid
*
@ -93,13 +95,15 @@ int write_pid (char *pidfile)
fprintf(stderr, "Can't open or create %s.\n", pidfile);
return 0;
}
#ifdef HAVE_FLOCK
if (flock(fd, LOCK_EX|LOCK_NB) == -1) {
fscanf(f, "%d", &pid);
fclose(f);
printf("Can't lock, lock is held by pid %d.\n", pid);
return 0;
}
#endif
pid = getpid();
if (!fprintf(f,"%d\n", pid)) {
@ -109,11 +113,13 @@ int write_pid (char *pidfile)
}
fflush(f);
#ifdef HAVE_FLOCK
if (flock(fd, LOCK_UN) == -1) {
printf("Can't unlock pidfile %s, %s.\n", pidfile, strerror(errno));
close(fd);
return 0;
}
#endif
close(fd);
return pid;