inet/ifaddrs.c

   1 /* getifaddrs -- get names and addresses of all network interfaces
   2    Copyright (C) 2002, 2003 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <ifaddrs.h>
  21 #include <errno.h>
  22 #include <stdlib.h>
  23
  24 /* Create a linked list of `struct ifaddrs' structures, one for each
  25    network interface on the host machine.  If successful, store the
  26    list in *IFAP and return 0.  On errors, return -1 and set `errno'.  */
  27 int
  28 getifaddrs (struct ifaddrs **ifap)
  29 {
  30   __set_errno (ENOSYS);
  31   return -1;
  32 }
  33 libc_hidden_def (getifaddrs)
  34 stub_warning (getifaddrs)
  35
  36 void
  37 freeifaddrs (struct ifaddrs *ifa)
  38 {
  39   if (ifa == NULL)
  40     return;                     /* a la free, why not? */
  41
  42   /* Can't be called properly if getifaddrs never succeeded.  */
  43   abort ();
  44 }
  45 libc_hidden_def (freeifaddrs)
  46 stub_warning (freeifaddrs)