inet/bug-if1.c

   1 /* Copyright (C) 2004 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
   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 <errno.h>
  21 #include <limits.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <net/if.h>
  25
  26
  27 static int
  28 do_test (void)
  29 {
  30   char buf[IF_NAMESIZE];
  31   /* Index 0 is always invalid (see RFC 3493).  */
  32   char *cp = if_indextoname (0, buf);
  33   if (cp != NULL)
  34     {
  35       printf ("invalid index returned result \"%s\"\n", cp);
  36       return 1;
  37     }
  38   else if (errno != ENXIO)
  39     {
  40       int err = errno;
  41       char errbuf1[256];
  42       char errbuf2[256];
  43
  44       printf ("errno = %d (%s), expected %d (%s)\n",
  45               err, strerror_r (err, errbuf1, sizeof (errbuf1)),
  46               ENXIO, strerror_r (ENXIO, errbuf2, sizeof (errbuf2)));
  47       return 1;
  48     }
  49
  50   return 0;
  51 }
  52
  53 #define TEST_FUNCTION do_test ()
  54 #include "../test-skeleton.c"