text: /* getifaddrs -- get names and addresses of all network interfaces
     Copyright (C) 2002-2017 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, see
     <http://www.gnu.org/licenses/>.  */
  
  #include <ifaddrs.h>
  #include <errno.h>
  #include <stdlib.h>
  
  /* Create a linked list of `struct ifaddrs' structures, one for each
     network interface on the host machine.  If successful, store the
     list in *IFAP and return 0.  On errors, return -1 and set `errno'.  */
  int
  __getifaddrs (struct ifaddrs **ifap)
  {
    __set_errno (ENOSYS);
    return -1;
  }
  weak_alias (__getifaddrs, getifaddrs)
  libc_hidden_weak (getifaddrs)
  stub_warning (getifaddrs)
  
  void
  __freeifaddrs (struct ifaddrs *ifa)
  {
    if (ifa == NULL)
      return;			/* a la free, why not? */
  
    /* Can't be called properly if getifaddrs never succeeded.  */
    abort ();
  }
  weak_alias (__freeifaddrs, freeifaddrs)
  libc_hidden_weak (freeifaddrs)
  stub_warning (freeifaddrs)
  