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/* Test of dirfd() function.
Copyright (C) 2023 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2023. */
#include <config.h>
#include <dirent.h>
#include <stdio.h>
#include "macros.h"
int
main ()
{
#if defined _WIN32 && !defined __CYGWIN__
fprintf (stderr, "Skipping test: The DIR type does not contain a file descriptor.\n");
return 77;
#else
/* On all other platforms, we expect to have either
- a dirfd() function, or
- a dirfd macro, or
- a DIR struct with a d_fd member, or
- a DIR struct with a dd_fd member.
If we don't have this, dirfd.c produces a function that always returns -1.
Check here that this does not happen. */
DIR *d = opendir (".");
int fd = dirfd (d);
ASSERT (fd >= 0);
return 0;
#endif
}
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