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/* Copyright (C) 2004-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
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 <errno.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <net/if.h>
static int
do_test (void)
{
char buf[IF_NAMESIZE];
/* Index 0 is always invalid (see RFC 3493). */
char *cp = if_indextoname (0, buf);
if (cp != NULL)
{
printf ("invalid index returned result \"%s\"\n", cp);
return 1;
}
else if (errno != ENXIO)
{
int err = errno;
char errbuf1[256];
char errbuf2[256];
printf ("errno = %d (%s), expected %d (%s)\n",
err, strerror_r (err, errbuf1, sizeof (errbuf1)),
ENXIO, strerror_r (ENXIO, errbuf2, sizeof (errbuf2)));
return 1;
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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