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/* Copyright (C) 1998-2021 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
<https://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>
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