inet/if_index.c

   1 /* Copyright (C) 1997-2014 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <net/if.h>
  19 #include <errno.h>
  20 #include <stddef.h>
  21
  22 unsigned int
  23 __if_nametoindex (const char *ifname)
  24 {
  25   __set_errno (ENOSYS);
  26   return 0;
  27 }
  28 libc_hidden_def (__if_nametoindex)
  29 weak_alias (__if_nametoindex, if_nametoindex)
  30 libc_hidden_weak (if_nametoindex)
  31 stub_warning (if_nametoindex)
  32
  33 char *
  34 __if_indextoname (unsigned int ifindex, char *ifname)
  35 {
  36   __set_errno (ENOSYS);
  37   return NULL;
  38 }
  39 weak_alias (__if_indextoname, if_indextoname)
  40 libc_hidden_weak (if_indextoname)
  41 stub_warning (if_indextoname)
  42
  43 void
  44 __if_freenameindex (struct if_nameindex *ifn)
  45 {
  46 }
  47 weak_alias (__if_freenameindex, if_freenameindex)
  48 stub_warning (if_freenameindex)
  49
  50 struct if_nameindex *
  51 __if_nameindex (void)
  52 {
  53   __set_errno (ENOSYS);
  54   return NULL;
  55 }
  56 weak_alias (__if_nameindex, if_nameindex)
  57 stub_warning (if_nameindex)
  58
  59 #if 0
  60 void
  61 internal_function
  62 __protocol_available (int *have_inet, int *have_inet6)
  63 {
  64   /* By default we assume that IPv4 is available, IPv6 not.  */
  65   *have_inet = 1;
  66   *have_inet6 = 0;
  67 }
  68 #endif