1 /* Test changing the protections of a file relative to an open directory.
2 Copyright (C) 2011-2024 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
21 #include "signature.h"
22 SIGNATURE_CHECK (fchmodat
, int, (int, const char *, mode_t
, int));
31 #define BASE "test-fchmodat."
36 /* Test behaviour for invalid file descriptors. */
39 ASSERT (fchmodat (-1, "foo", 0600, 0) == -1);
40 ASSERT (errno
== EBADF
);
45 ASSERT (fchmodat (99, "foo", 0600, 0) == -1);
46 ASSERT (errno
== EBADF
);
49 /* Test that fchmodat works on regular files. */
54 ASSERT (close (creat (BASE
"file", 0600)) == 0);
55 ASSERT (fchmodat (AT_FDCWD
, BASE
"file", 0400, 0) == 0);
56 ASSERT (stat (BASE
"file", &statbuf
) >= 0);
57 ASSERT ((statbuf
.st_mode
& 0700) == 0400);
60 ASSERT (fchmodat (AT_FDCWD
, BASE
"file/", 0600, 0) == -1);
61 ASSERT (errno
== ENOTDIR
);
64 ASSERT (chmod (BASE
"file", 0600) == 0);
65 ASSERT (unlink (BASE
"file") == 0);
68 /* Test that fchmodat works on directories. */
72 ASSERT (mkdir (BASE
"dir", 0700) == 0);
73 ASSERT (fchmodat (AT_FDCWD
, BASE
"dir", 0500, 0) == 0);
74 ASSERT (stat (BASE
"dir", &statbuf
) >= 0);
75 ASSERT ((statbuf
.st_mode
& 0700) == 0500);
76 ASSERT (fchmodat (AT_FDCWD
, BASE
"dir/", 0700, 0) == 0);
79 ASSERT (rmdir (BASE
"dir") == 0);
82 /* Test that fchmodat works on non-symlinks, when given
83 the AT_SYMLINK_NOFOLLOW flag. */
87 ASSERT (close (creat (BASE
"file", 0600)) == 0);
88 ASSERT (fchmodat (AT_FDCWD
, BASE
"file", 0400, AT_SYMLINK_NOFOLLOW
) == 0);
89 ASSERT (stat (BASE
"file", &statbuf
) >= 0);
90 ASSERT ((statbuf
.st_mode
& 0700) == 0400);
92 ASSERT (chmod (BASE
"file", 0600) == 0);
93 ASSERT (unlink (BASE
"file") == 0);
96 return test_exit_status
;