/* Copyright (C) 2003-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.

   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 <fcntl.h>

#include <semaphore.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

static void

remove_sem (int status, void *arg)

{

  sem_unlink (arg);

}

static int

do_test (void)

{

  sem_t *s;

  int i;

  on_exit (remove_sem, (void *) "/glibc-tst-sem9");

  for (i = 0; i < 3; ++i)

    {

      s = sem_open ("/glibc-tst-sem9", O_CREAT, 0600, 1);

      if (s == SEM_FAILED)

	{

	  if (errno == ENOSYS)

	    {

	      puts ("sem_open not supported.  Oh well.");

	      return 0;

	    }

	  /* Maybe the shm filesystem has strict permissions.  */

	  if (errno == EACCES)

	    {

	      puts ("sem_open not allowed.  Oh well.");

	      return 0;

	    }

	  printf ("sem_open: %m\n");

	  return 1;

	}

      /* Now close the handle.  */

      if (sem_close (s) != 0)

	{

	  puts ("sem_close failed");

	  return 1;

	}

      /* And remove it.  */

      if (sem_unlink ("/glibc-tst-sem9") != 0)

	{

	  puts ("sem_unlink failed");

	  return 1;

	}

    }

  return 0;

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"