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 "string-util.h"
34 #define test_path_compare(a, b, result) { \
35 assert_se(path_compare(a, b) == result); \
36 assert_se(path_compare(b, a) == -result); \
37 assert_se(path_equal(a, b) == !result); \
38 assert_se(path_equal(b, a) == !result); \
41 static void test_path(void) {
42 _cleanup_close_ int fd = -1;
44 test_path_compare("/goo", "/goo", 0);
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);
50 test_path_compare("/goo/boo", "/goo//boo", 0);
51 test_path_compare("//goo/boo", "/goo/boo//", 0);
53 test_path_compare("/", "///", 0);
55 test_path_compare("/x", "x/", 1);
56 test_path_compare("x/", "/", -1);
58 test_path_compare("/x/./y", "x/y", 1);
59 test_path_compare("x/.y", "x/y", -1);
61 test_path_compare("foo", "/foo", -1);
62 test_path_compare("/foo", "/foo/bar", -1);
63 test_path_compare("/foo/aaa", "/foo/b", -1);
64 test_path_compare("/foo/aaa", "/foo/b/a", -1);
65 test_path_compare("/foo/a", "/foo/aaa", -1);
66 test_path_compare("/foo/a/b", "/foo/aaa", -1);
68 assert_se(path_is_absolute("/"));
69 assert_se(!path_is_absolute("./"));
71 assert_se(is_path("/dir"));
72 assert_se(is_path("a/b"));
73 assert_se(!is_path("."));
75 assert_se(streq(basename("./aa/bb/../file.da."), "file.da."));
76 assert_se(streq(basename("/aa///.file"), ".file"));
77 assert_se(streq(basename("/aa///file..."), "file..."));
78 assert_se(streq(basename("file.../"), ""));
80 fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY|O_NOCTTY);
82 assert_se(fd_is_mount_point(fd, "/", 0) > 0);
85 char p1[] = "aaa/bbb////ccc";
86 char p2[] = "//aaa/.////ccc";
89 assert_se(path_equal(path_kill_slashes(p1), "aaa/bbb/ccc"));
90 assert_se(path_equal(path_kill_slashes(p2), "/aaa/./ccc"));
91 assert_se(path_equal(path_kill_slashes(p3), "/./"));
94 assert_se(PATH_IN_SET("/bin", "/", "/bin", "/foo"));
95 assert_se(PATH_IN_SET("/bin", "/bin"));
96 assert_se(PATH_IN_SET("/bin", "/foo/bar", "/bin"));
97 assert_se(PATH_IN_SET("/", "/", "/", "/foo/bar"));
98 assert_se(!PATH_IN_SET("/", "/abc", "/def"));
100 assert_se(path_equal_ptr(NULL, NULL));
101 assert_se(path_equal_ptr("/a", "/a"));
102 assert_se(!path_equal_ptr("/a", "/b"));
103 assert_se(!path_equal_ptr("/a", NULL));
104 assert_se(!path_equal_ptr(NULL, "/a"));
107 static void test_path_equal_root(void) {
108 /* Nail down the details of how path_equal("/", ...) works. */
110 assert_se(path_equal("/", "/"));
111 assert_se(path_equal("/", "//"));
113 assert_se(!path_equal("/", "/./"));
114 assert_se(!path_equal("/", "/../"));
116 assert_se(!path_equal("/", "/.../"));
118 /* Make sure that files_same works as expected. */
120 assert_se(files_same("/", "/", 0) > 0);
121 assert_se(files_same("/", "/", AT_SYMLINK_NOFOLLOW) > 0);
122 assert_se(files_same("/", "//", 0) > 0);
123 assert_se(files_same("/", "//", AT_SYMLINK_NOFOLLOW) > 0);
125 assert_se(files_same("/", "/./", 0) > 0);
126 assert_se(files_same("/", "/./", AT_SYMLINK_NOFOLLOW) > 0);
127 assert_se(files_same("/", "/../", 0) > 0);
128 assert_se(files_same("/", "/../", AT_SYMLINK_NOFOLLOW) > 0);
130 assert_se(files_same("/", "/.../", 0) == -ENOENT);
131 assert_se(files_same("/", "/.../", AT_SYMLINK_NOFOLLOW) == -ENOENT);
133 /* The same for path_equal_or_files_same. */
135 assert_se(path_equal_or_files_same("/", "/", 0));
136 assert_se(path_equal_or_files_same("/", "/", AT_SYMLINK_NOFOLLOW));
137 assert_se(path_equal_or_files_same("/", "//", 0));
138 assert_se(path_equal_or_files_same("/", "//", AT_SYMLINK_NOFOLLOW));
140 assert_se(path_equal_or_files_same("/", "/./", 0));
141 assert_se(path_equal_or_files_same("/", "/./", AT_SYMLINK_NOFOLLOW));
142 assert_se(path_equal_or_files_same("/", "/../", 0));
143 assert_se(path_equal_or_files_same("/", "/../", AT_SYMLINK_NOFOLLOW));
145 assert_se(!path_equal_or_files_same("/", "/.../", 0));
146 assert_se(!path_equal_or_files_same("/", "/.../", AT_SYMLINK_NOFOLLOW));
149 static void test_find_binary(const char *self) {
152 assert_se(find_binary("/bin/sh", &p) == 0);
154 assert_se(path_equal(p, "/bin/sh"));
157 assert_se(find_binary(self, &p) == 0);
159 /* libtool might prefix the binary name with "lt-" */
160 assert_se(endswith(p, "/lt-test-path-util") || endswith(p, "/test-path-util"));
161 assert_se(path_is_absolute(p));
164 assert_se(find_binary("sh", &p) == 0);
166 assert_se(endswith(p, "/sh"));
167 assert_se(path_is_absolute(p));
170 assert_se(find_binary("xxxx-xxxx", &p) == -ENOENT);
171 assert_se(find_binary("/some/dir/xxxx-xxxx", &p) == -ENOENT);
174 static void test_prefixes(void) {
175 static const char* values[] = { "/a/b/c/d", "/a/b/c", "/a/b", "/a", "", NULL};
181 PATH_FOREACH_PREFIX_MORE(s, "/a/b/c/d") {
182 log_error("---%s---", s);
183 assert_se(streq(s, values[i++]));
185 assert_se(values[i] == NULL);
188 PATH_FOREACH_PREFIX(s, "/a/b/c/d") {
189 log_error("---%s---", s);
190 assert_se(streq(s, values[i++]));
192 assert_se(values[i] == NULL);
195 PATH_FOREACH_PREFIX_MORE(s, "////a////b////c///d///////")
196 assert_se(streq(s, values[i++]));
197 assert_se(values[i] == NULL);
200 PATH_FOREACH_PREFIX(s, "////a////b////c///d///////")
201 assert_se(streq(s, values[i++]));
202 assert_se(values[i] == NULL);
204 PATH_FOREACH_PREFIX(s, "////")
205 assert_not_reached("Wut?");
208 PATH_FOREACH_PREFIX_MORE(s, "////") {
210 assert_se(streq(s, ""));
215 PATH_FOREACH_PREFIX(s, "")
216 assert_not_reached("wut?");
219 PATH_FOREACH_PREFIX_MORE(s, "") {
221 assert_se(streq(s, ""));
226 static void test_path_join(void) {
228 #define test_join(root, path, rest, expected) { \
229 _cleanup_free_ char *z = NULL; \
230 z = path_join(root, path, rest); \
231 assert_se(streq(z, expected)); \
234 test_join("/root", "/a/b", "/c", "/root/a/b/c");
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", "/", "c", "/root/c");
238 test_join("/root", "/", NULL, "/root/");
240 test_join(NULL, "/a/b", "/c", "/a/b/c");
241 test_join(NULL, "a/b", "c", "a/b/c");
242 test_join(NULL, "/a/b", "c", "/a/b/c");
243 test_join(NULL, "/", "c", "/c");
244 test_join(NULL, "/", NULL, "/");
247 #if 0 /// UNNEEDED by elogind
248 static void test_fsck_exists(void) {
249 /* Ensure we use a sane default for PATH. */
252 /* fsck.minix is provided by util-linux and will probably exist. */
253 assert_se(fsck_exists("minix") == 1);
255 assert_se(fsck_exists("AbCdE") == 0);
256 assert_se(fsck_exists("/../bin/") == 0);
259 static void test_make_relative(void) {
262 assert_se(path_make_relative("some/relative/path", "/some/path", &result) < 0);
263 assert_se(path_make_relative("/some/path", "some/relative/path", &result) < 0);
265 #define test(from_dir, to_path, expected) { \
266 _cleanup_free_ char *z = NULL; \
267 path_make_relative(from_dir, to_path, &z); \
268 assert_se(streq(z, expected)); \
272 test("/", "/some/path", "some/path");
273 test("/some/path", "/some/path", ".");
274 test("/some/path", "/some/path/in/subdir", "in/subdir");
275 test("/some/path", "/", "../..");
276 test("/some/path", "/some/other/path", "../other/path");
277 test("//extra/////slashes///won't////fool///anybody//", "////extra///slashes////are/just///fine///", "../../../are/just/fine");
281 static void test_strv_resolve(void) {
282 char tmp_dir[] = "/tmp/test-path-util-XXXXXX";
283 _cleanup_strv_free_ char **search_dirs = NULL;
284 _cleanup_strv_free_ char **absolute_dirs = NULL;
287 assert_se(mkdtemp(tmp_dir) != NULL);
289 search_dirs = strv_new("/dir1", "/dir2", "/dir3", NULL);
290 assert_se(search_dirs);
291 STRV_FOREACH(d, search_dirs) {
292 char *p = strappend(tmp_dir, *d);
294 assert_se(strv_push(&absolute_dirs, p) == 0);
297 assert_se(mkdir(absolute_dirs[0], 0700) == 0);
298 assert_se(mkdir(absolute_dirs[1], 0700) == 0);
299 assert_se(symlink("dir2", absolute_dirs[2]) == 0);
301 path_strv_resolve(search_dirs, tmp_dir);
302 assert_se(streq(search_dirs[0], "/dir1"));
303 assert_se(streq(search_dirs[1], "/dir2"));
304 assert_se(streq(search_dirs[2], "/dir2"));
306 assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
309 static void test_path_startswith(void) {
312 p = path_startswith("/foo/bar/barfoo/", "/foo");
313 assert_se(streq_ptr(p, "bar/barfoo/"));
315 p = path_startswith("/foo/bar/barfoo/", "/foo/");
316 assert_se(streq_ptr(p, "bar/barfoo/"));
318 p = path_startswith("/foo/bar/barfoo/", "/");
319 assert_se(streq_ptr(p, "foo/bar/barfoo/"));
321 p = path_startswith("/foo/bar/barfoo/", "////");
322 assert_se(streq_ptr(p, "foo/bar/barfoo/"));
324 p = path_startswith("/foo/bar/barfoo/", "/foo//bar/////barfoo///");
325 assert_se(streq_ptr(p, ""));
327 p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo////");
328 assert_se(streq_ptr(p, ""));
330 p = path_startswith("/foo/bar/barfoo/", "/foo/bar///barfoo/");
331 assert_se(streq_ptr(p, ""));
333 p = path_startswith("/foo/bar/barfoo/", "/foo////bar/barfoo/");
334 assert_se(streq_ptr(p, ""));
336 p = path_startswith("/foo/bar/barfoo/", "////foo/bar/barfoo/");
337 assert_se(streq_ptr(p, ""));
339 p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo");
340 assert_se(streq_ptr(p, ""));
342 assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa/"));
343 assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa"));
344 assert_se(!path_startswith("/foo/bar/barfoo/", ""));
345 assert_se(!path_startswith("/foo/bar/barfoo/", "/bar/foo"));
346 assert_se(!path_startswith("/foo/bar/barfoo/", "/f/b/b/"));
349 static void test_prefix_root_one(const char *r, const char *p, const char *expected) {
350 _cleanup_free_ char *s = NULL;
353 assert_se(s = prefix_root(r, p));
354 assert_se(streq_ptr(s, expected));
356 t = prefix_roota(r, p);
358 assert_se(streq_ptr(t, expected));
361 static void test_prefix_root(void) {
362 test_prefix_root_one("/", "/foo", "/foo");
363 test_prefix_root_one(NULL, "/foo", "/foo");
364 test_prefix_root_one("", "/foo", "/foo");
365 test_prefix_root_one("///", "/foo", "/foo");
366 test_prefix_root_one("/", "////foo", "/foo");
367 test_prefix_root_one(NULL, "////foo", "/foo");
369 test_prefix_root_one("/foo", "/bar", "/foo/bar");
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");
377 static void test_path_is_mount_point(void) {
379 char tmp_dir[] = "/tmp/test-path-is-mount-point-XXXXXX";
380 _cleanup_free_ char *file1 = NULL, *file2 = NULL, *link1 = NULL, *link2 = NULL;
381 _cleanup_free_ char *dir1 = NULL, *dir1file = NULL, *dirlink1 = NULL, *dirlink1file = NULL;
382 _cleanup_free_ char *dir2 = NULL, *dir2file = NULL;
384 assert_se(path_is_mount_point("/", NULL, AT_SYMLINK_FOLLOW) > 0);
385 assert_se(path_is_mount_point("/", NULL, 0) > 0);
387 assert_se(path_is_mount_point("/proc", NULL, AT_SYMLINK_FOLLOW) > 0);
388 assert_se(path_is_mount_point("/proc", NULL, 0) > 0);
390 assert_se(path_is_mount_point("/proc/1", NULL, AT_SYMLINK_FOLLOW) == 0);
391 assert_se(path_is_mount_point("/proc/1", NULL, 0) == 0);
393 assert_se(path_is_mount_point("/sys", NULL, AT_SYMLINK_FOLLOW) > 0);
394 assert_se(path_is_mount_point("/sys", NULL, 0) > 0);
396 /* we'll create a hierarchy of different kinds of dir/file/link
399 * <tmp>/file1, <tmp>/file2
400 * <tmp>/link1 -> file1, <tmp>/link2 -> file2
403 * <tmp>/dirlink1 -> dir1
404 * <tmp>/dirlink1file -> dirlink1/file
409 /* file mountpoints */
410 assert_se(mkdtemp(tmp_dir) != NULL);
411 file1 = path_join(NULL, tmp_dir, "file1");
413 file2 = path_join(NULL, tmp_dir, "file2");
415 fd = open(file1, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
418 fd = open(file2, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
421 link1 = path_join(NULL, tmp_dir, "link1");
423 assert_se(symlink("file1", link1) == 0);
424 link2 = path_join(NULL, tmp_dir, "link2");
426 assert_se(symlink("file2", link2) == 0);
428 assert_se(path_is_mount_point(file1, NULL, AT_SYMLINK_FOLLOW) == 0);
429 assert_se(path_is_mount_point(file1, NULL, 0) == 0);
430 assert_se(path_is_mount_point(link1, NULL, AT_SYMLINK_FOLLOW) == 0);
431 assert_se(path_is_mount_point(link1, NULL, 0) == 0);
433 /* directory mountpoints */
434 dir1 = path_join(NULL, tmp_dir, "dir1");
436 assert_se(mkdir(dir1, 0755) == 0);
437 dirlink1 = path_join(NULL, tmp_dir, "dirlink1");
439 assert_se(symlink("dir1", dirlink1) == 0);
440 dirlink1file = path_join(NULL, tmp_dir, "dirlink1file");
441 assert_se(dirlink1file);
442 assert_se(symlink("dirlink1/file", dirlink1file) == 0);
443 dir2 = path_join(NULL, tmp_dir, "dir2");
445 assert_se(mkdir(dir2, 0755) == 0);
447 assert_se(path_is_mount_point(dir1, NULL, AT_SYMLINK_FOLLOW) == 0);
448 assert_se(path_is_mount_point(dir1, NULL, 0) == 0);
449 assert_se(path_is_mount_point(dirlink1, NULL, AT_SYMLINK_FOLLOW) == 0);
450 assert_se(path_is_mount_point(dirlink1, NULL, 0) == 0);
452 /* file in subdirectory mountpoints */
453 dir1file = path_join(NULL, dir1, "file");
455 fd = open(dir1file, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
459 assert_se(path_is_mount_point(dir1file, NULL, AT_SYMLINK_FOLLOW) == 0);
460 assert_se(path_is_mount_point(dir1file, NULL, 0) == 0);
461 assert_se(path_is_mount_point(dirlink1file, NULL, AT_SYMLINK_FOLLOW) == 0);
462 assert_se(path_is_mount_point(dirlink1file, NULL, 0) == 0);
464 /* these tests will only work as root */
465 if (mount(file1, file2, NULL, MS_BIND, NULL) >= 0) {
466 int rt, rf, rlt, rlf, rl1t, rl1f;
469 /* capture results in vars, to avoid dangling mounts on failure */
470 rf = path_is_mount_point(file2, NULL, 0);
471 rt = path_is_mount_point(file2, NULL, AT_SYMLINK_FOLLOW);
472 rlf = path_is_mount_point(link2, NULL, 0);
473 rlt = path_is_mount_point(link2, NULL, AT_SYMLINK_FOLLOW);
475 assert_se(umount(file2) == 0);
483 dir2file = path_join(NULL, dir2, "file");
485 fd = open(dir2file, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
489 assert_se(mount(dir2, dir1, NULL, MS_BIND, NULL) >= 0);
491 rf = path_is_mount_point(dir1, NULL, 0);
492 rt = path_is_mount_point(dir1, NULL, AT_SYMLINK_FOLLOW);
493 rlf = path_is_mount_point(dirlink1, NULL, 0);
494 rlt = path_is_mount_point(dirlink1, NULL, AT_SYMLINK_FOLLOW);
495 /* its parent is a mount point, but not /file itself */
496 rl1f = path_is_mount_point(dirlink1file, NULL, 0);
497 rl1t = path_is_mount_point(dirlink1file, NULL, AT_SYMLINK_FOLLOW);
499 assert_se(umount(dir1) == 0);
505 assert_se(rl1f == 0);
506 assert_se(rl1t == 0);
509 printf("Skipping bind mount file test: %m\n");
511 assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
514 static void test_file_in_same_dir(void) {
517 t = file_in_same_dir("/", "a");
518 assert_se(streq(t, "/a"));
521 t = file_in_same_dir("/", "/a");
522 assert_se(streq(t, "/a"));
525 t = file_in_same_dir("", "a");
526 assert_se(streq(t, "a"));
529 t = file_in_same_dir("a/", "a");
530 assert_se(streq(t, "a/a"));
533 t = file_in_same_dir("bar/foo", "bar");
534 assert_se(streq(t, "bar/bar"));
538 static void test_filename_is_valid(void) {
539 char foo[FILENAME_MAX+2];
542 assert_se(!filename_is_valid(""));
543 assert_se(!filename_is_valid("/bar/foo"));
544 assert_se(!filename_is_valid("/"));
545 assert_se(!filename_is_valid("."));
546 assert_se(!filename_is_valid(".."));
548 for (i=0; i<FILENAME_MAX+1; i++)
550 foo[FILENAME_MAX+1] = '\0';
552 assert_se(!filename_is_valid(foo));
554 assert_se(filename_is_valid("foo_bar-333"));
555 assert_se(filename_is_valid("o.o"));
558 static void test_hidden_or_backup_file(void) {
559 assert_se(hidden_or_backup_file(".hidden"));
560 assert_se(hidden_or_backup_file("..hidden"));
561 assert_se(!hidden_or_backup_file("hidden."));
563 assert_se(hidden_or_backup_file("backup~"));
564 assert_se(hidden_or_backup_file(".backup~"));
566 assert_se(hidden_or_backup_file("lost+found"));
567 assert_se(hidden_or_backup_file("aquota.user"));
568 assert_se(hidden_or_backup_file("aquota.group"));
570 assert_se(hidden_or_backup_file("test.rpmnew"));
571 assert_se(hidden_or_backup_file("test.dpkg-old"));
572 assert_se(hidden_or_backup_file("test.dpkg-remove"));
573 assert_se(hidden_or_backup_file("test.swp"));
575 assert_se(!hidden_or_backup_file("test.rpmnew."));
576 assert_se(!hidden_or_backup_file("test.dpkg-old.foo"));
579 #if 0 /// UNNEEDED by elogind
580 static void test_systemd_installation_has_version(const char *path) {
582 const unsigned versions[] = {0, 231, atoi(PACKAGE_VERSION), 999};
585 for (i = 0; i < ELEMENTSOF(versions); i++) {
586 r = systemd_installation_has_version(path, versions[i]);
588 log_info("%s has systemd >= %u: %s",
589 path ?: "Current installation", versions[i], yes_no(r));
594 int main(int argc, char **argv) {
595 log_set_max_level(LOG_DEBUG);
596 log_parse_environment();
600 test_path_equal_root();
601 test_find_binary(argv[0]);
604 #if 0 /// UNNEEDED by elogind
606 test_make_relative();
609 test_path_startswith();
611 test_path_is_mount_point();
612 test_file_in_same_dir();
613 test_filename_is_valid();
614 test_hidden_or_backup_file();
616 #if 0 /// UNNEEDED by elogind
617 test_systemd_installation_has_version(argv[1]); /* NULL is OK */