inet/herrno.c

   1 /* Copyright (C) 1996 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 Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 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 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17 Boston, MA 02111-1307, USA.  */
  18
  19 #include <features.h>
  20
  21 /* We need to have the error status variable of the resolver
  22    accessible in the libc.  */
  23 int __h_errno = 0;
  24 strong_alias (__h_errno, h_errno)
  25
  26 /* When threaded, h_errno may be a per-process variable.  */
  27 #ifdef __USE_REENTRANT
  28 int *
  29 weak_const_function
  30 __h_errno_location (void)
  31 {
  32   return &__h_errno;
  33 }
  34 #endif