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/* Tests of fchownat.
Copyright (C) 2009-2022 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 Eric Blake <ebb9@byu.net>, 2009. */
#include <config.h>
#include <unistd.h>
#include "signature.h"
SIGNATURE_CHECK (fchownat, int, (int, char const *, uid_t, gid_t, int));
#include <fcntl.h>
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include "mgetgroups.h"
#include "openat.h"
#include "stat-time.h"
#include "ignore-value.h"
#include "macros.h"
#ifndef BASE
# define BASE "test-fchownat.t"
#endif
#include "test-chown.h"
#include "test-lchown.h"
static int dfd = AT_FDCWD;
/* Wrapper around fchownat to test chown behavior. */
static int
do_chown (char const *name, uid_t user, gid_t group)
{
#ifdef TEST_CHOWNAT
return chownat (dfd, name, user, group);
#else
return fchownat (dfd, name, user, group, 0);
#endif
}
/* Wrapper around fchownat to test lchown behavior. */
static int
do_lchown (char const *name, uid_t user, gid_t group)
{
#ifdef TEST_CHOWNAT
return lchownat (dfd, name, user, group);
#else
return fchownat (dfd, name, user, group, AT_SYMLINK_NOFOLLOW);
#endif
}
int
main (_GL_UNUSED int argc, char *argv[])
{
int result1; /* Skip because of no chown/symlink support. */
int result2; /* Skip because of no lchown support. */
/* Clean up any trash from prior testsuite runs. */
ignore_value (system ("rm -rf " BASE "*"));
/* Test behaviour for invalid file descriptors. */
{
errno = 0;
ASSERT (fchownat (-1, "foo", getuid (), getgid (), 0) == -1);
ASSERT (errno == EBADF);
}
{
close (99);
errno = 0;
ASSERT (fchownat (99, "foo", getuid (), getgid (), 0) == -1);
ASSERT (errno == EBADF);
}
/* Basic tests. */
result1 = test_chown (do_chown, true);
result2 = test_lchown (do_lchown, result1 == 0);
dfd = open (".", O_RDONLY);
ASSERT (0 <= dfd);
ASSERT (test_chown (do_chown, false) == result1);
ASSERT (test_lchown (do_lchown, false) == result2);
/* We expect 0/0, 0/77, or 77/77, but not 77/0. */
ASSERT (result1 <= result2);
ASSERT (close (dfd) == 0);
/* FIXME - add additional tests of dfd not at current directory. */
return result1 | result2;
}
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