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1 | /* BZ #22679 getcwd(3) should not succeed without returning an absolute path. |
2 | ||
6d7e8eda | 3 | Copyright (C) 2018-2023 Free Software Foundation, Inc. |
52a713fd DL |
4 | This file is part of the GNU C Library. |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
17 | License along with the GNU C Library; if not, see | |
18 | <https://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include <errno.h> | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <support/check.h> | |
24 | #include <support/namespace.h> | |
25 | #include <support/support.h> | |
26 | #include <support/temp_file.h> | |
27 | #include <support/test-driver.h> | |
28 | #include <support/xunistd.h> | |
29 | #include <unistd.h> | |
30 | ||
31 | static char *chroot_dir; | |
32 | ||
33 | /* The actual test. Run it in a subprocess, so that the test harness | |
34 | can remove the temporary directory in --direct mode. */ | |
35 | static void | |
36 | getcwd_callback (void *closure) | |
37 | { | |
38 | xchroot (chroot_dir); | |
39 | ||
40 | errno = 0; | |
41 | char *cwd = getcwd (NULL, 0); | |
42 | TEST_COMPARE (errno, ENOENT); | |
43 | TEST_VERIFY (cwd == NULL); | |
44 | ||
45 | errno = 0; | |
46 | cwd = realpath (".", NULL); | |
47 | TEST_COMPARE (errno, ENOENT); | |
48 | TEST_VERIFY (cwd == NULL); | |
49 | ||
50 | _exit (0); | |
51 | } | |
52 | ||
53 | static int | |
54 | do_test (void) | |
55 | { | |
56 | support_become_root (); | |
57 | if (!support_can_chroot ()) | |
58 | return EXIT_UNSUPPORTED; | |
59 | ||
60 | chroot_dir = support_create_temp_directory ("tst-getcwd-abspath-"); | |
61 | support_isolate_in_subprocess (getcwd_callback, NULL); | |
62 | ||
63 | return 0; | |
64 | } | |
65 | ||
66 | #include <support/test-driver.c> |