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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
f4c13ad7 RC |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2010 Lennart Poettering | |
6 | ||
7 | systemd is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU Lesser General Public License as published by | |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public License | |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
19 | ***/ | |
20 | ||
21 | #include <fcntl.h> | |
436e916e | 22 | #include <linux/magic.h> |
f4c13ad7 RC |
23 | #include <unistd.h> |
24 | ||
25 | #include "alloc-util.h" | |
26 | #include "fd-util.h" | |
27 | #include "fileio.h" | |
28 | #include "macro.h" | |
436e916e | 29 | #include "missing.h" |
cc390161 | 30 | #include "mount-util.h" |
f4c13ad7 RC |
31 | #include "stat-util.h" |
32 | ||
33 | static void test_files_same(void) { | |
34 | _cleanup_close_ int fd = -1; | |
35 | char name[] = "/tmp/test-files_same.XXXXXX"; | |
36 | char name_alias[] = "/tmp/test-files_same.alias"; | |
37 | ||
646853bd | 38 | fd = mkostemp_safe(name); |
f4c13ad7 RC |
39 | assert_se(fd >= 0); |
40 | assert_se(symlink(name, name_alias) >= 0); | |
41 | ||
e3f791a2 ZJS |
42 | assert_se(files_same(name, name, 0)); |
43 | assert_se(files_same(name, name, AT_SYMLINK_NOFOLLOW)); | |
44 | assert_se(files_same(name, name_alias, 0)); | |
45 | assert_se(!files_same(name, name_alias, AT_SYMLINK_NOFOLLOW)); | |
f4c13ad7 RC |
46 | |
47 | unlink(name); | |
48 | unlink(name_alias); | |
49 | } | |
50 | ||
51 | static void test_is_symlink(void) { | |
52 | char name[] = "/tmp/test-is_symlink.XXXXXX"; | |
53 | char name_link[] = "/tmp/test-is_symlink.link"; | |
54 | _cleanup_close_ int fd = -1; | |
55 | ||
646853bd | 56 | fd = mkostemp_safe(name); |
f4c13ad7 RC |
57 | assert_se(fd >= 0); |
58 | assert_se(symlink(name, name_link) >= 0); | |
59 | ||
60 | assert_se(is_symlink(name) == 0); | |
61 | assert_se(is_symlink(name_link) == 1); | |
62 | assert_se(is_symlink("/a/file/which/does/not/exist/i/guess") < 0); | |
63 | ||
64 | ||
65 | unlink(name); | |
66 | unlink(name_link); | |
67 | } | |
68 | ||
7dcdb24e LP |
69 | static void test_path_is_os_tree(void) { |
70 | assert_se(path_is_os_tree("/") > 0); | |
71 | assert_se(path_is_os_tree("/etc") == 0); | |
72 | assert_se(path_is_os_tree("/idontexist") == -ENOENT); | |
73 | } | |
74 | ||
436e916e | 75 | static void test_path_check_fstype(void) { |
cc390161 MP |
76 | /* run might not be a mount point in build chroots */ |
77 | if (path_is_mount_point("/run", NULL, AT_SYMLINK_FOLLOW) > 0) { | |
78 | assert_se(path_check_fstype("/run", TMPFS_MAGIC) > 0); | |
79 | assert_se(path_check_fstype("/run", BTRFS_SUPER_MAGIC) == 0); | |
80 | } | |
436e916e LP |
81 | assert_se(path_check_fstype("/proc", PROC_SUPER_MAGIC) > 0); |
82 | assert_se(path_check_fstype("/proc", BTRFS_SUPER_MAGIC) == 0); | |
83 | assert_se(path_check_fstype("/proc", BTRFS_SUPER_MAGIC) == 0); | |
84 | assert_se(path_check_fstype("/i-dont-exist", BTRFS_SUPER_MAGIC) == -ENOENT); | |
85 | } | |
86 | ||
87 | static void test_path_is_temporary_fs(void) { | |
8dfc2f40 MP |
88 | /* run might not be a mount point in build chroots */ |
89 | if (path_is_mount_point("/run", NULL, AT_SYMLINK_FOLLOW) > 0) | |
90 | assert_se(path_is_temporary_fs("/run") > 0); | |
436e916e LP |
91 | assert_se(path_is_temporary_fs("/proc") == 0); |
92 | assert_se(path_is_temporary_fs("/i-dont-exist") == -ENOENT); | |
93 | } | |
94 | ||
f4c13ad7 RC |
95 | int main(int argc, char *argv[]) { |
96 | test_files_same(); | |
97 | test_is_symlink(); | |
7dcdb24e | 98 | test_path_is_os_tree(); |
436e916e LP |
99 | test_path_check_fstype(); |
100 | test_path_is_temporary_fs(); | |
f4c13ad7 RC |
101 | |
102 | return 0; | |
103 | } |