j3d1/tinc
1
0
Fork 0
Code Issues 1 Pull requests Releases Wiki Activity

Added new configuration directive `Hostnames', which controls the resolving of IP addresses to hostnames.

Browse source
This commit is contained in:
Ivo Timmermans 2000-05-30 11:18:12 +00:00
parent a7ad161d2b
commit f826301889
3 changed files with 31 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

27
src/netutl.c
View file

@ -1,6 +1,6 @@
/*
netutl.c -- some supporting network utility code
Copyright (C) 1998,1999,2000 Ivo Timmermans <zarq@iname.com>
Copyright (C) 1998,1999,2000 Ivo Timmermans <itimmermans@bigfoot.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
@ -15,6 +15,8 @@
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., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id: netutl.c,v 1.11 2000/05/30 11:18:12 zarq Exp $
*/
#include "config.h"
@ -31,6 +33,7 @@
#include <utils.h>
#include <xalloc.h>
#include "conf.h"
#include "encr.h"
#include "net.h"
#include "netutl.h"
@ -166,21 +169,29 @@ char *hostlookup(unsigned long addr)
char *name;
struct hostent *host = NULL;
struct in_addr in;
config_t const *cfg;
int lookup_hostname;
cp
in.s_addr = addr;
host = gethostbyaddr((char *)&in, sizeof(in), AF_INET);
lookup_hostname = 0;
if((cfg = get_config_val(resolve_dns)) != NULL)
if(cfg->data.val == stupid_true)
lookup_hostname = 1;
if(host)
{
name = xmalloc(strlen(host->h_name)+20);
sprintf(name, "%s (%s)", host->h_name, inet_ntoa(in));
}
else
if(lookup_hostname)
host = gethostbyaddr((char *)&in, sizeof(in), AF_INET);
if(!lookup_hostname || !host)
{
name = xmalloc(20);
sprintf(name, "%s", inet_ntoa(in));
}
else
{
name = xmalloc(strlen(host->h_name)+20);
sprintf(name, "%s (%s)", host->h_name, inet_ntoa(in));
}
cp
return name;
}