1  /* Copyright (C) 1997-2023 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     <https://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[IF_NAMESIZE])
      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  libc_hidden_def (__if_freenameindex)
      48  weak_alias (__if_freenameindex, if_freenameindex)
      49  libc_hidden_weak (if_freenameindex)
      50  stub_warning (if_freenameindex)
      51  
      52  struct if_nameindex *
      53  __if_nameindex (void)
      54  {
      55    __set_errno (ENOSYS);
      56    return NULL;
      57  }
      58  weak_alias (__if_nameindex, if_nameindex)
      59  libc_hidden_weak (if_nameindex)
      60  stub_warning (if_nameindex)