/* Copyright (C) 1998-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.

   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 <dirent.h>

#include <errno.h>

#include <fcntl.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <unistd.h>

#include <sys/stat.h>

/* Name of the FIFO.  */

char tmpname[] = "fifoXXXXXX";

/* Do the real work.  */

static int

real_test (void)

{

  DIR *dirp;

  /* This should not block for an FIFO.  */

  dirp = opendir (tmpname);

  /* Successful.  */

  if (dirp != NULL)

    {

      /* Oh, oh, how can this work?  */

      fputs ("`opendir' succeeded on a FIFO???\n", stdout);

      closedir (dirp);

      return 1;

    }

  if (errno != ENOTDIR)

    {

      fprintf (stdout, "`opendir' return error `%s' instead of `%s'\n",

	       strerror (errno), strerror (ENOTDIR));

      return 1;

    }

  return 0;

}

static int

do_test (void)

{

  int retval;

  if (mktemp (tmpname) == NULL)

    {

      perror ("mktemp");

      return 1;

    }

  /* Try to generate a FIFO.  */

  if (mknod (tmpname, 0600 | S_IFIFO, 0) < 0)

    {

      perror ("mknod");

      /* We cannot make this an error.  */

      return 0;

    }

  retval = real_test ();

  remove (tmpname);

  return retval;

}

static void

do_cleanup (void)

{

  remove (tmpname);

}

#define CLEANUP_HANDLER do_cleanup

#include <support/test-driver.c>