mirror of
https://sourceware.org/git/glibc.git
synced 2024-09-19 16:10:01 +00:00
7f1deee65e
This implementation supports only IPv4. * inet/ifaddrs.h: New file. * sysdeps/generic/ifaddrs.c: New file. * sysdeps/gnu/ifaddrs.c: New file. * inet/test-ifaddrs.c: New file. * inet/Makefile (routines): Add ifaddrs. (headers): Add ifaddrs.h here. (tests): Add test-ifaddrs. * inet/Versions (GLIBC_2.3): New set, add getifaddrs and freeifaddrs. * resolv/res_hconf.c (_res_hconf_reorder_addrs): Use an explicit socket call to get an AF_INET socket, instead of using __opensock. The SIOCGIFNETMASK ioctl will work only with a PF_INET socket. * sysdeps/generic/ifreq.h (__ifreq): Take third argument SOCKFD, if not -1 use it instead of calling __opensock. * sysdeps/unix/sysv/linux/ifreq.h (__ifreq): Likewise. * sysdeps/mach/hurd/ifreq.h (__ifreq): Take new argument and ignore it. * resolv/res_hconf.c (_res_hconf_reorder_addrs): Pass new argument. * sysdeps/mach/hurd/ifreq.h: New file. * sysdeps/generic/ifreq.h (__if_freereq): Take second argument NUM_IFS. * sysdeps/unix/sysv/linux/ifreq.h (__if_freereq): Likewise. * resolv/res_hconf.c (_res_hconf_reorder_addrs): Update caller.
83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/* Test listing of network interface addresses.
|
|
Copyright (C) 2002 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <ifaddrs.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
int failures = 0;
|
|
struct ifaddrs *ifaces, *ifa;
|
|
|
|
if (getifaddrs (&ifaces) < 0)
|
|
{
|
|
if (errno != ENOSYS)
|
|
{
|
|
printf ("Couldn't get any interfaces: %s.\n", strerror (errno));
|
|
exit (1);
|
|
}
|
|
/* The function is simply not implemented. */
|
|
exit (0);
|
|
}
|
|
|
|
puts ("\
|
|
Name Flags Address Netmask Broadcast/Destination");
|
|
|
|
for (ifa = ifaces; ifa != NULL; ifa = ifa->ifa_next)
|
|
{
|
|
char abuf[64], mbuf[64], dbuf[64];
|
|
inline const char *addr_string (struct sockaddr *sa, char *buf)
|
|
{
|
|
switch (sa->sa_family)
|
|
{
|
|
case AF_INET:
|
|
return inet_ntop (AF_INET,
|
|
&((struct sockaddr_in *) sa)->sin_addr,
|
|
buf, sizeof abuf);
|
|
case AF_INET6:
|
|
return inet_ntop (AF_INET6,
|
|
&((struct sockaddr_in6 *) sa)->sin6_addr,
|
|
buf, sizeof abuf);
|
|
case AF_UNSPEC:
|
|
return "---";
|
|
default:
|
|
++failures;
|
|
printf ("sa_family=%d %08x\n", sa->sa_family,
|
|
*(int*)&((struct sockaddr_in *) sa)->sin_addr.s_addr);
|
|
return "<unexpected sockaddr family>";
|
|
}
|
|
}
|
|
printf ("%-15s%#.4x %-15s %-15s %-15s\n",
|
|
ifa->ifa_name, ifa->ifa_flags,
|
|
addr_string (ifa->ifa_addr, abuf),
|
|
addr_string (ifa->ifa_netmask, mbuf),
|
|
addr_string (ifa->ifa_broadaddr, dbuf));
|
|
}
|
|
|
|
freeifaddrs (ifaces);
|
|
|
|
return failures ? 1 : 0;
|
|
}
|