2 This file is part of systemd.
4 Copyright 2013 Zbigniew Jędrzejewski-Szmek
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 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.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
21 #include <sys/mount.h>
24 #include "alloc-util.h"
27 #include "mount-util.h"
28 #include "path-util.h"
30 #include "stat-util.h"
31 #include "string-util.h"
35 #define test_path_compare(a, b, result) { \
36 assert_se(path_compare(a, b) == result); \
37 assert_se(path_compare(b, a) == -result); \
38 assert_se(path_equal(a, b) == !result); \
39 assert_se(path_equal(b, a) == !result); \
42 static void test_path(void) {
43 _cleanup_close_ int fd = -1;
45 test_path_compare("/goo", "/goo", 0);
46 test_path_compare("/goo", "/goo", 0);
47 test_path_compare("//goo", "/goo", 0);
48 test_path_compare("//goo/////", "/goo", 0);
49 test_path_compare("goo/////", "goo", 0);
51 test_path_compare("/goo/boo", "/goo//boo", 0);
52 test_path_compare("//goo/boo", "/goo/boo//", 0);
54 test_path_compare("/", "///", 0);
56 test_path_compare("/x", "x/", 1);
57 test_path_compare("x/", "/", -1);
59 test_path_compare("/x/./y", "x/y", 1);
60 test_path_compare("x/.y", "x/y", -1);
62 test_path_compare("foo", "/foo", -1);
63 test_path_compare("/foo", "/foo/bar", -1);
64 test_path_compare("/foo/aaa", "/foo/b", -1);
65 test_path_compare("/foo/aaa", "/foo/b/a", -1);
66 test_path_compare("/foo/a", "/foo/aaa", -1);
67 test_path_compare("/foo/a/b", "/foo/aaa", -1);
69 assert_se(path_is_absolute("/"));
70 assert_se(!path_is_absolute("./"));
72 assert_se(is_path("/dir"));
73 assert_se(is_path("a/b"));
74 assert_se(!is_path("."));
76 assert_se(streq(basename("./aa/bb/../file.da."), "file.da."));
77 assert_se(streq(basename("/aa///.file"), ".file"));
78 assert_se(streq(basename("/aa///file..."), "file..."));
79 assert_se(streq(basename("file.../"), ""));
81 fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY|O_NOCTTY);
83 assert_se(fd_is_mount_point(fd, "/", 0) > 0);
86 char p1[] = "aaa/bbb////ccc";
87 char p2[] = "//aaa/.////ccc";
90 assert_se(path_equal(path_kill_slashes(p1), "aaa/bbb/ccc"));
91 assert_se(path_equal(path_kill_slashes(p2), "/aaa/./ccc"));
92 assert_se(path_equal(path_kill_slashes(p3), "/./"));
95 assert_se(PATH_IN_SET("/bin", "/", "/bin", "/foo"));
96 assert_se(PATH_IN_SET("/bin", "/bin"));
97 assert_se(PATH_IN_SET("/bin", "/foo/bar", "/bin"));
98 assert_se(PATH_IN_SET("/", "/", "/", "/foo/bar"));
99 assert_se(!PATH_IN_SET("/", "/abc", "/def"));
101 assert_se(path_equal_ptr(NULL, NULL));
102 assert_se(path_equal_ptr("/a", "/a"));
103 assert_se(!path_equal_ptr("/a", "/b"));
104 assert_se(!path_equal_ptr("/a", NULL));
105 assert_se(!path_equal_ptr(NULL, "/a"));
108 static void test_path_equal_root(void) {
109 /* Nail down the details of how path_equal("/", ...) works. */
111 assert_se(path_equal("/", "/"));
112 assert_se(path_equal("/", "//"));
114 assert_se(!path_equal("/", "/./"));
115 assert_se(!path_equal("/", "/../"));
117 assert_se(!path_equal("/", "/.../"));
119 /* Make sure that files_same works as expected. */
121 assert_se(files_same("/", "/", 0) > 0);
122 assert_se(files_same("/", "/", AT_SYMLINK_NOFOLLOW) > 0);
123 assert_se(files_same("/", "//", 0) > 0);
124 assert_se(files_same("/", "//", AT_SYMLINK_NOFOLLOW) > 0);
126 assert_se(files_same("/", "/./", 0) > 0);
127 assert_se(files_same("/", "/./", AT_SYMLINK_NOFOLLOW) > 0);
128 assert_se(files_same("/", "/../", 0) > 0);
129 assert_se(files_same("/", "/../", AT_SYMLINK_NOFOLLOW) > 0);
131 assert_se(files_same("/", "/.../", 0) == -ENOENT);
132 assert_se(files_same("/", "/.../", AT_SYMLINK_NOFOLLOW) == -ENOENT);
134 /* The same for path_equal_or_files_same. */
136 assert_se(path_equal_or_files_same("/", "/", 0));
137 assert_se(path_equal_or_files_same("/", "/", AT_SYMLINK_NOFOLLOW));
138 assert_se(path_equal_or_files_same("/", "//", 0));
139 assert_se(path_equal_or_files_same("/", "//", AT_SYMLINK_NOFOLLOW));
141 assert_se(path_equal_or_files_same("/", "/./", 0));
142 assert_se(path_equal_or_files_same("/", "/./", AT_SYMLINK_NOFOLLOW));
143 assert_se(path_equal_or_files_same("/", "/../", 0));
144 assert_se(path_equal_or_files_same("/", "/../", AT_SYMLINK_NOFOLLOW));
146 assert_se(!path_equal_or_files_same("/", "/.../", 0));
147 assert_se(!path_equal_or_files_same("/", "/.../", AT_SYMLINK_NOFOLLOW));
150 static void test_find_binary(const char *self) {
153 assert_se(find_binary("/bin/sh", &p) == 0);
155 assert_se(path_equal(p, "/bin/sh"));
158 assert_se(find_binary(self, &p) == 0);
160 /* libtool might prefix the binary name with "lt-" */
161 assert_se(endswith(p, "/lt-test-path-util") || endswith(p, "/test-path-util"));
162 assert_se(path_is_absolute(p));
165 assert_se(find_binary("sh", &p) == 0);
167 assert_se(endswith(p, "/sh"));
168 assert_se(path_is_absolute(p));
171 assert_se(find_binary("xxxx-xxxx", &p) == -ENOENT);
172 assert_se(find_binary("/some/dir/xxxx-xxxx", &p) == -ENOENT);
175 static void test_prefixes(void) {
176 static const char* values[] = { "/a/b/c/d", "/a/b/c", "/a/b", "/a", "", NULL};
182 PATH_FOREACH_PREFIX_MORE(s, "/a/b/c/d") {
183 log_error("---%s---", s);
184 assert_se(streq(s, values[i++]));
186 assert_se(values[i] == NULL);
189 PATH_FOREACH_PREFIX(s, "/a/b/c/d") {
190 log_error("---%s---", s);
191 assert_se(streq(s, values[i++]));
193 assert_se(values[i] == NULL);
196 PATH_FOREACH_PREFIX_MORE(s, "////a////b////c///d///////")
197 assert_se(streq(s, values[i++]));
198 assert_se(values[i] == NULL);
201 PATH_FOREACH_PREFIX(s, "////a////b////c///d///////")
202 assert_se(streq(s, values[i++]));
203 assert_se(values[i] == NULL);
205 PATH_FOREACH_PREFIX(s, "////")
206 assert_not_reached("Wut?");
209 PATH_FOREACH_PREFIX_MORE(s, "////") {
211 assert_se(streq(s, ""));
216 PATH_FOREACH_PREFIX(s, "")
217 assert_not_reached("wut?");
220 PATH_FOREACH_PREFIX_MORE(s, "") {
222 assert_se(streq(s, ""));
227 static void test_path_join(void) {
229 #define test_join(root, path, rest, expected) { \
230 _cleanup_free_ char *z = NULL; \
231 z = path_join(root, path, rest); \
232 assert_se(streq(z, expected)); \
235 test_join("/root", "/a/b", "/c", "/root/a/b/c");
236 test_join("/root", "a/b", "c", "/root/a/b/c");
237 test_join("/root", "/a/b", "c", "/root/a/b/c");
238 test_join("/root", "/", "c", "/root/c");
239 test_join("/root", "/", NULL, "/root/");
241 test_join(NULL, "/a/b", "/c", "/a/b/c");
242 test_join(NULL, "a/b", "c", "a/b/c");
243 test_join(NULL, "/a/b", "c", "/a/b/c");
244 test_join(NULL, "/", "c", "/c");
245 test_join(NULL, "/", NULL, "/");
248 #if 0 /// UNNEEDED by elogind
249 static void test_fsck_exists(void) {
250 /* Ensure we use a sane default for PATH. */
253 /* fsck.minix is provided by util-linux and will probably exist. */
254 assert_se(fsck_exists("minix") == 1);
256 assert_se(fsck_exists("AbCdE") == 0);
257 assert_se(fsck_exists("/../bin/") == 0);
260 static void test_make_relative(void) {
263 assert_se(path_make_relative("some/relative/path", "/some/path", &result) < 0);
264 assert_se(path_make_relative("/some/path", "some/relative/path", &result) < 0);
266 #define test(from_dir, to_path, expected) { \
267 _cleanup_free_ char *z = NULL; \
268 path_make_relative(from_dir, to_path, &z); \
269 assert_se(streq(z, expected)); \
273 test("/", "/some/path", "some/path");
274 test("/some/path", "/some/path", ".");
275 test("/some/path", "/some/path/in/subdir", "in/subdir");
276 test("/some/path", "/", "../..");
277 test("/some/path", "/some/other/path", "../other/path");
278 test("//extra/////slashes///won't////fool///anybody//", "////extra///slashes////are/just///fine///", "../../../are/just/fine");
282 static void test_strv_resolve(void) {
283 char tmp_dir[] = "/tmp/test-path-util-XXXXXX";
284 _cleanup_strv_free_ char **search_dirs = NULL;
285 _cleanup_strv_free_ char **absolute_dirs = NULL;
288 assert_se(mkdtemp(tmp_dir) != NULL);
290 search_dirs = strv_new("/dir1", "/dir2", "/dir3", NULL);
291 assert_se(search_dirs);
292 STRV_FOREACH(d, search_dirs) {
293 char *p = strappend(tmp_dir, *d);
295 assert_se(strv_push(&absolute_dirs, p) == 0);
298 assert_se(mkdir(absolute_dirs[0], 0700) == 0);
299 assert_se(mkdir(absolute_dirs[1], 0700) == 0);
300 assert_se(symlink("dir2", absolute_dirs[2]) == 0);
302 path_strv_resolve(search_dirs, tmp_dir);
303 assert_se(streq(search_dirs[0], "/dir1"));
304 assert_se(streq(search_dirs[1], "/dir2"));
305 assert_se(streq(search_dirs[2], "/dir2"));
307 assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
310 static void test_path_startswith(void) {
313 p = path_startswith("/foo/bar/barfoo/", "/foo");
314 assert_se(streq_ptr(p, "bar/barfoo/"));
316 p = path_startswith("/foo/bar/barfoo/", "/foo/");
317 assert_se(streq_ptr(p, "bar/barfoo/"));
319 p = path_startswith("/foo/bar/barfoo/", "/");
320 assert_se(streq_ptr(p, "foo/bar/barfoo/"));
322 p = path_startswith("/foo/bar/barfoo/", "////");
323 assert_se(streq_ptr(p, "foo/bar/barfoo/"));
325 p = path_startswith("/foo/bar/barfoo/", "/foo//bar/////barfoo///");
326 assert_se(streq_ptr(p, ""));
328 p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo////");
329 assert_se(streq_ptr(p, ""));
331 p = path_startswith("/foo/bar/barfoo/", "/foo/bar///barfoo/");
332 assert_se(streq_ptr(p, ""));
334 p = path_startswith("/foo/bar/barfoo/", "/foo////bar/barfoo/");
335 assert_se(streq_ptr(p, ""));
337 p = path_startswith("/foo/bar/barfoo/", "////foo/bar/barfoo/");
338 assert_se(streq_ptr(p, ""));
340 p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo");
341 assert_se(streq_ptr(p, ""));
343 assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa/"));
344 assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa"));
345 assert_se(!path_startswith("/foo/bar/barfoo/", ""));
346 assert_se(!path_startswith("/foo/bar/barfoo/", "/bar/foo"));
347 assert_se(!path_startswith("/foo/bar/barfoo/", "/f/b/b/"));
350 static void test_prefix_root_one(const char *r, const char *p, const char *expected) {
351 _cleanup_free_ char *s = NULL;
354 assert_se(s = prefix_root(r, p));
355 assert_se(streq_ptr(s, expected));
357 t = prefix_roota(r, p);
359 assert_se(streq_ptr(t, expected));
362 static void test_prefix_root(void) {
363 test_prefix_root_one("/", "/foo", "/foo");
364 test_prefix_root_one(NULL, "/foo", "/foo");
365 test_prefix_root_one("", "/foo", "/foo");
366 test_prefix_root_one("///", "/foo", "/foo");
367 test_prefix_root_one("/", "////foo", "/foo");
368 test_prefix_root_one(NULL, "////foo", "/foo");
370 test_prefix_root_one("/foo", "/bar", "/foo/bar");
371 test_prefix_root_one("/foo", "bar", "/foo/bar");
372 test_prefix_root_one("foo", "bar", "foo/bar");
373 test_prefix_root_one("/foo/", "/bar", "/foo/bar");
374 test_prefix_root_one("/foo/", "//bar", "/foo/bar");
375 test_prefix_root_one("/foo///", "//bar", "/foo/bar");
378 static void test_path_is_mount_point(void) {
380 char tmp_dir[] = "/tmp/test-path-is-mount-point-XXXXXX";
381 _cleanup_free_ char *file1 = NULL, *file2 = NULL, *link1 = NULL, *link2 = NULL;
382 _cleanup_free_ char *dir1 = NULL, *dir1file = NULL, *dirlink1 = NULL, *dirlink1file = NULL;
383 _cleanup_free_ char *dir2 = NULL, *dir2file = NULL;
385 assert_se(path_is_mount_point("/", NULL, AT_SYMLINK_FOLLOW) > 0);
386 assert_se(path_is_mount_point("/", NULL, 0) > 0);
388 assert_se(path_is_mount_point("/proc", NULL, AT_SYMLINK_FOLLOW) > 0);
389 assert_se(path_is_mount_point("/proc", NULL, 0) > 0);
391 assert_se(path_is_mount_point("/proc/1", NULL, AT_SYMLINK_FOLLOW) == 0);
392 assert_se(path_is_mount_point("/proc/1", NULL, 0) == 0);
394 assert_se(path_is_mount_point("/sys", NULL, AT_SYMLINK_FOLLOW) > 0);
395 assert_se(path_is_mount_point("/sys", NULL, 0) > 0);
397 /* we'll create a hierarchy of different kinds of dir/file/link
400 * <tmp>/file1, <tmp>/file2
401 * <tmp>/link1 -> file1, <tmp>/link2 -> file2
404 * <tmp>/dirlink1 -> dir1
405 * <tmp>/dirlink1file -> dirlink1/file
410 /* file mountpoints */
411 assert_se(mkdtemp(tmp_dir) != NULL);
412 file1 = path_join(NULL, tmp_dir, "file1");
414 file2 = path_join(NULL, tmp_dir, "file2");
416 fd = open(file1, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
419 fd = open(file2, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
422 link1 = path_join(NULL, tmp_dir, "link1");
424 assert_se(symlink("file1", link1) == 0);
425 link2 = path_join(NULL, tmp_dir, "link2");
427 assert_se(symlink("file2", link2) == 0);
429 assert_se(path_is_mount_point(file1, NULL, AT_SYMLINK_FOLLOW) == 0);
430 assert_se(path_is_mount_point(file1, NULL, 0) == 0);
431 assert_se(path_is_mount_point(link1, NULL, AT_SYMLINK_FOLLOW) == 0);
432 assert_se(path_is_mount_point(link1, NULL, 0) == 0);
434 /* directory mountpoints */
435 dir1 = path_join(NULL, tmp_dir, "dir1");
437 assert_se(mkdir(dir1, 0755) == 0);
438 dirlink1 = path_join(NULL, tmp_dir, "dirlink1");
440 assert_se(symlink("dir1", dirlink1) == 0);
441 dirlink1file = path_join(NULL, tmp_dir, "dirlink1file");
442 assert_se(dirlink1file);
443 assert_se(symlink("dirlink1/file", dirlink1file) == 0);
444 dir2 = path_join(NULL, tmp_dir, "dir2");
446 assert_se(mkdir(dir2, 0755) == 0);
448 assert_se(path_is_mount_point(dir1, NULL, AT_SYMLINK_FOLLOW) == 0);
449 assert_se(path_is_mount_point(dir1, NULL, 0) == 0);
450 assert_se(path_is_mount_point(dirlink1, NULL, AT_SYMLINK_FOLLOW) == 0);
451 assert_se(path_is_mount_point(dirlink1, NULL, 0) == 0);
453 /* file in subdirectory mountpoints */
454 dir1file = path_join(NULL, dir1, "file");
456 fd = open(dir1file, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
460 assert_se(path_is_mount_point(dir1file, NULL, AT_SYMLINK_FOLLOW) == 0);
461 assert_se(path_is_mount_point(dir1file, NULL, 0) == 0);
462 assert_se(path_is_mount_point(dirlink1file, NULL, AT_SYMLINK_FOLLOW) == 0);
463 assert_se(path_is_mount_point(dirlink1file, NULL, 0) == 0);
465 /* these tests will only work as root */
466 if (mount(file1, file2, NULL, MS_BIND, NULL) >= 0) {
467 int rt, rf, rlt, rlf, rl1t, rl1f;
470 /* capture results in vars, to avoid dangling mounts on failure */
471 rf = path_is_mount_point(file2, NULL, 0);
472 rt = path_is_mount_point(file2, NULL, AT_SYMLINK_FOLLOW);
473 rlf = path_is_mount_point(link2, NULL, 0);
474 rlt = path_is_mount_point(link2, NULL, AT_SYMLINK_FOLLOW);
476 assert_se(umount(file2) == 0);
484 dir2file = path_join(NULL, dir2, "file");
486 fd = open(dir2file, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
490 assert_se(mount(dir2, dir1, NULL, MS_BIND, NULL) >= 0);
492 rf = path_is_mount_point(dir1, NULL, 0);
493 rt = path_is_mount_point(dir1, NULL, AT_SYMLINK_FOLLOW);
494 rlf = path_is_mount_point(dirlink1, NULL, 0);
495 rlt = path_is_mount_point(dirlink1, NULL, AT_SYMLINK_FOLLOW);
496 /* its parent is a mount point, but not /file itself */
497 rl1f = path_is_mount_point(dirlink1file, NULL, 0);
498 rl1t = path_is_mount_point(dirlink1file, NULL, AT_SYMLINK_FOLLOW);
500 assert_se(umount(dir1) == 0);
506 assert_se(rl1f == 0);
507 assert_se(rl1t == 0);
510 printf("Skipping bind mount file test: %m\n");
512 assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
515 static void test_file_in_same_dir(void) {
518 t = file_in_same_dir("/", "a");
519 assert_se(streq(t, "/a"));
522 t = file_in_same_dir("/", "/a");
523 assert_se(streq(t, "/a"));
526 t = file_in_same_dir("", "a");
527 assert_se(streq(t, "a"));
530 t = file_in_same_dir("a/", "a");
531 assert_se(streq(t, "a/a"));
534 t = file_in_same_dir("bar/foo", "bar");
535 assert_se(streq(t, "bar/bar"));
539 static void test_filename_is_valid(void) {
540 char foo[FILENAME_MAX+2];
543 assert_se(!filename_is_valid(""));
544 assert_se(!filename_is_valid("/bar/foo"));
545 assert_se(!filename_is_valid("/"));
546 assert_se(!filename_is_valid("."));
547 assert_se(!filename_is_valid(".."));
549 for (i=0; i<FILENAME_MAX+1; i++)
551 foo[FILENAME_MAX+1] = '\0';
553 assert_se(!filename_is_valid(foo));
555 assert_se(filename_is_valid("foo_bar-333"));
556 assert_se(filename_is_valid("o.o"));
559 static void test_hidden_or_backup_file(void) {
560 assert_se(hidden_or_backup_file(".hidden"));
561 assert_se(hidden_or_backup_file("..hidden"));
562 assert_se(!hidden_or_backup_file("hidden."));
564 assert_se(hidden_or_backup_file("backup~"));
565 assert_se(hidden_or_backup_file(".backup~"));
567 assert_se(hidden_or_backup_file("lost+found"));
568 assert_se(hidden_or_backup_file("aquota.user"));
569 assert_se(hidden_or_backup_file("aquota.group"));
571 assert_se(hidden_or_backup_file("test.rpmnew"));
572 assert_se(hidden_or_backup_file("test.dpkg-old"));
573 assert_se(hidden_or_backup_file("test.dpkg-remove"));
574 assert_se(hidden_or_backup_file("test.swp"));
576 assert_se(!hidden_or_backup_file("test.rpmnew."));
577 assert_se(!hidden_or_backup_file("test.dpkg-old.foo"));
580 #if 0 /// UNNEEDED by elogind
581 static void test_systemd_installation_has_version(const char *path) {
583 const unsigned versions[] = {0, 231, atoi(PACKAGE_VERSION), 999};
586 for (i = 0; i < ELEMENTSOF(versions); i++) {
587 r = systemd_installation_has_version(path, versions[i]);
589 log_info("%s has systemd >= %u: %s",
590 path ?: "Current installation", versions[i], yes_no(r));
595 int main(int argc, char **argv) {
596 log_set_max_level(LOG_DEBUG);
597 log_parse_environment();
601 test_path_equal_root();
602 test_find_binary(argv[0]);
605 #if 0 /// UNNEEDED by elogind
607 test_make_relative();
610 test_path_startswith();
612 test_path_is_mount_point();
613 test_file_in_same_dir();
614 test_filename_is_valid();
615 test_hidden_or_backup_file();
617 #if 0 /// UNNEEDED by elogind
618 test_systemd_installation_has_version(argv[1]); /* NULL is OK */