/* Copyright (C) 2013-2018 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 <elf.h>

#include <errno.h>

#include <link.h>

#include <string.h>

#include <stdio.h>

#include <unistd.h>

#include <misc/sys/auxv.h>

static int

do_test (int argc, char *argv[])

{

  errno = 0;

  const char *execfn = (const char *) getauxval (AT_NULL);

  if (errno != ENOENT)

    {

      printf ("errno is %d rather than %d (ENOENT) on failure\n", errno,

	      ENOENT);

      return 1;

    }

  if (execfn != NULL)

    {

      printf ("getauxval return value is nonzero on failure\n");

      return 1;

    }

  errno = 0;

  execfn = (const char *) getauxval (AT_EXECFN);

  if (execfn == NULL)

    {

      printf ("No AT_EXECFN found, AT_EXECFN test skipped\n");

      return 0;

    }

  if (errno != 0)

    {

      printf ("errno erroneously set to %d on success\n", errno);

      return 1;

    }

  if (strcmp (argv[0], execfn) != 0)

    {

      printf ("Mismatch: argv[0]: %s vs. AT_EXECFN: %s\n", argv[0], execfn);

      return 1;

    }

  return 0;

}

#define TEST_FUNCTION_ARGV do_test

#include <support/test-driver.c>