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1 | /* SPDX-License-Identifier: LGPL-2.1+ */ | |
2 | /*** | |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2013 Zbigniew Jędrzejewski-Szmek | |
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 <stdio.h> | |
22 | #include <sys/mount.h> | |
23 | #include <unistd.h> | |
24 | ||
25 | #include "alloc-util.h" | |
26 | #include "fd-util.h" | |
27 | #include "macro.h" | |
28 | #include "mount-util.h" | |
29 | #include "path-util.h" | |
30 | #include "rm-rf.h" | |
31 | #include "stat-util.h" | |
32 | #include "string-util.h" | |
33 | #include "strv.h" | |
34 | #include "util.h" | |
35 | ||
36 | #define test_path_compare(a, b, result) { \ | |
37 | assert_se(path_compare(a, b) == result); \ | |
38 | assert_se(path_compare(b, a) == -result); \ | |
39 | assert_se(path_equal(a, b) == !result); \ | |
40 | assert_se(path_equal(b, a) == !result); \ | |
41 | } | |
42 | ||
43 | static void test_path(void) { | |
44 | _cleanup_close_ int fd = -1; | |
45 | ||
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); | |
50 | test_path_compare("goo/////", "goo", 0); | |
51 | ||
52 | test_path_compare("/goo/boo", "/goo//boo", 0); | |
53 | test_path_compare("//goo/boo", "/goo/boo//", 0); | |
54 | ||
55 | test_path_compare("/", "///", 0); | |
56 | ||
57 | test_path_compare("/x", "x/", 1); | |
58 | test_path_compare("x/", "/", -1); | |
59 | ||
60 | test_path_compare("/x/./y", "x/y", 1); | |
61 | test_path_compare("x/.y", "x/y", -1); | |
62 | ||
63 | test_path_compare("foo", "/foo", -1); | |
64 | test_path_compare("/foo", "/foo/bar", -1); | |
65 | test_path_compare("/foo/aaa", "/foo/b", -1); | |
66 | test_path_compare("/foo/aaa", "/foo/b/a", -1); | |
67 | test_path_compare("/foo/a", "/foo/aaa", -1); | |
68 | test_path_compare("/foo/a/b", "/foo/aaa", -1); | |
69 | ||
70 | assert_se(path_is_absolute("/")); | |
71 | assert_se(!path_is_absolute("./")); | |
72 | ||
73 | assert_se(is_path("/dir")); | |
74 | assert_se(is_path("a/b")); | |
75 | assert_se(!is_path(".")); | |
76 | ||
77 | assert_se(streq(basename("./aa/bb/../file.da."), "file.da.")); | |
78 | assert_se(streq(basename("/aa///.file"), ".file")); | |
79 | assert_se(streq(basename("/aa///file..."), "file...")); | |
80 | assert_se(streq(basename("file.../"), "")); | |
81 | ||
82 | fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY|O_NOCTTY); | |
83 | assert_se(fd >= 0); | |
84 | assert_se(fd_is_mount_point(fd, "/", 0) > 0); | |
85 | ||
86 | { | |
87 | char p1[] = "aaa/bbb////ccc"; | |
88 | char p2[] = "//aaa/.////ccc"; | |
89 | char p3[] = "/./"; | |
90 | ||
91 | assert_se(path_equal(path_kill_slashes(p1), "aaa/bbb/ccc")); | |
92 | assert_se(path_equal(path_kill_slashes(p2), "/aaa/./ccc")); | |
93 | assert_se(path_equal(path_kill_slashes(p3), "/./")); | |
94 | } | |
95 | ||
96 | assert_se(PATH_IN_SET("/bin", "/", "/bin", "/foo")); | |
97 | assert_se(PATH_IN_SET("/bin", "/bin")); | |
98 | assert_se(PATH_IN_SET("/bin", "/foo/bar", "/bin")); | |
99 | assert_se(PATH_IN_SET("/", "/", "/", "/foo/bar")); | |
100 | assert_se(!PATH_IN_SET("/", "/abc", "/def")); | |
101 | ||
102 | assert_se(path_equal_ptr(NULL, NULL)); | |
103 | assert_se(path_equal_ptr("/a", "/a")); | |
104 | assert_se(!path_equal_ptr("/a", "/b")); | |
105 | assert_se(!path_equal_ptr("/a", NULL)); | |
106 | assert_se(!path_equal_ptr(NULL, "/a")); | |
107 | } | |
108 | ||
109 | static void test_path_equal_root(void) { | |
110 | /* Nail down the details of how path_equal("/", ...) works. */ | |
111 | ||
112 | assert_se(path_equal("/", "/")); | |
113 | assert_se(path_equal("/", "//")); | |
114 | ||
115 | assert_se(!path_equal("/", "/./")); | |
116 | assert_se(!path_equal("/", "/../")); | |
117 | ||
118 | assert_se(!path_equal("/", "/.../")); | |
119 | ||
120 | /* Make sure that files_same works as expected. */ | |
121 | ||
122 | assert_se(files_same("/", "/", 0) > 0); | |
123 | assert_se(files_same("/", "/", AT_SYMLINK_NOFOLLOW) > 0); | |
124 | assert_se(files_same("/", "//", 0) > 0); | |
125 | assert_se(files_same("/", "//", AT_SYMLINK_NOFOLLOW) > 0); | |
126 | ||
127 | assert_se(files_same("/", "/./", 0) > 0); | |
128 | assert_se(files_same("/", "/./", AT_SYMLINK_NOFOLLOW) > 0); | |
129 | assert_se(files_same("/", "/../", 0) > 0); | |
130 | assert_se(files_same("/", "/../", AT_SYMLINK_NOFOLLOW) > 0); | |
131 | ||
132 | assert_se(files_same("/", "/.../", 0) == -ENOENT); | |
133 | assert_se(files_same("/", "/.../", AT_SYMLINK_NOFOLLOW) == -ENOENT); | |
134 | ||
135 | /* The same for path_equal_or_files_same. */ | |
136 | ||
137 | assert_se(path_equal_or_files_same("/", "/", 0)); | |
138 | assert_se(path_equal_or_files_same("/", "/", AT_SYMLINK_NOFOLLOW)); | |
139 | assert_se(path_equal_or_files_same("/", "//", 0)); | |
140 | assert_se(path_equal_or_files_same("/", "//", AT_SYMLINK_NOFOLLOW)); | |
141 | ||
142 | assert_se(path_equal_or_files_same("/", "/./", 0)); | |
143 | assert_se(path_equal_or_files_same("/", "/./", AT_SYMLINK_NOFOLLOW)); | |
144 | assert_se(path_equal_or_files_same("/", "/../", 0)); | |
145 | assert_se(path_equal_or_files_same("/", "/../", AT_SYMLINK_NOFOLLOW)); | |
146 | ||
147 | assert_se(!path_equal_or_files_same("/", "/.../", 0)); | |
148 | assert_se(!path_equal_or_files_same("/", "/.../", AT_SYMLINK_NOFOLLOW)); | |
149 | } | |
150 | ||
151 | static void test_find_binary(const char *self) { | |
152 | char *p; | |
153 | ||
154 | assert_se(find_binary("/bin/sh", &p) == 0); | |
155 | puts(p); | |
156 | assert_se(path_equal(p, "/bin/sh")); | |
157 | free(p); | |
158 | ||
159 | assert_se(find_binary(self, &p) == 0); | |
160 | puts(p); | |
161 | /* libtool might prefix the binary name with "lt-" */ | |
162 | assert_se(endswith(p, "/lt-test-path-util") || endswith(p, "/test-path-util")); | |
163 | assert_se(path_is_absolute(p)); | |
164 | free(p); | |
165 | ||
166 | assert_se(find_binary("sh", &p) == 0); | |
167 | puts(p); | |
168 | assert_se(endswith(p, "/sh")); | |
169 | assert_se(path_is_absolute(p)); | |
170 | free(p); | |
171 | ||
172 | assert_se(find_binary("xxxx-xxxx", &p) == -ENOENT); | |
173 | assert_se(find_binary("/some/dir/xxxx-xxxx", &p) == -ENOENT); | |
174 | } | |
175 | ||
176 | static void test_prefixes(void) { | |
177 | static const char* values[] = { "/a/b/c/d", "/a/b/c", "/a/b", "/a", "", NULL}; | |
178 | unsigned i; | |
179 | char s[PATH_MAX]; | |
180 | bool b; | |
181 | ||
182 | i = 0; | |
183 | PATH_FOREACH_PREFIX_MORE(s, "/a/b/c/d") { | |
184 | log_error("---%s---", s); | |
185 | assert_se(streq(s, values[i++])); | |
186 | } | |
187 | assert_se(values[i] == NULL); | |
188 | ||
189 | i = 1; | |
190 | PATH_FOREACH_PREFIX(s, "/a/b/c/d") { | |
191 | log_error("---%s---", s); | |
192 | assert_se(streq(s, values[i++])); | |
193 | } | |
194 | assert_se(values[i] == NULL); | |
195 | ||
196 | i = 0; | |
197 | PATH_FOREACH_PREFIX_MORE(s, "////a////b////c///d///////") | |
198 | assert_se(streq(s, values[i++])); | |
199 | assert_se(values[i] == NULL); | |
200 | ||
201 | i = 1; | |
202 | PATH_FOREACH_PREFIX(s, "////a////b////c///d///////") | |
203 | assert_se(streq(s, values[i++])); | |
204 | assert_se(values[i] == NULL); | |
205 | ||
206 | PATH_FOREACH_PREFIX(s, "////") | |
207 | assert_not_reached("Wut?"); | |
208 | ||
209 | b = false; | |
210 | PATH_FOREACH_PREFIX_MORE(s, "////") { | |
211 | assert_se(!b); | |
212 | assert_se(streq(s, "")); | |
213 | b = true; | |
214 | } | |
215 | assert_se(b); | |
216 | ||
217 | PATH_FOREACH_PREFIX(s, "") | |
218 | assert_not_reached("wut?"); | |
219 | ||
220 | b = false; | |
221 | PATH_FOREACH_PREFIX_MORE(s, "") { | |
222 | assert_se(!b); | |
223 | assert_se(streq(s, "")); | |
224 | b = true; | |
225 | } | |
226 | } | |
227 | ||
228 | static void test_path_join(void) { | |
229 | ||
230 | #define test_join(root, path, rest, expected) { \ | |
231 | _cleanup_free_ char *z = NULL; \ | |
232 | z = path_join(root, path, rest); \ | |
233 | assert_se(streq(z, expected)); \ | |
234 | } | |
235 | ||
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", "/a/b", "c", "/root/a/b/c"); | |
239 | test_join("/root", "/", "c", "/root/c"); | |
240 | test_join("/root", "/", NULL, "/root/"); | |
241 | ||
242 | test_join(NULL, "/a/b", "/c", "/a/b/c"); | |
243 | test_join(NULL, "a/b", "c", "a/b/c"); | |
244 | test_join(NULL, "/a/b", "c", "/a/b/c"); | |
245 | test_join(NULL, "/", "c", "/c"); | |
246 | test_join(NULL, "/", NULL, "/"); | |
247 | } | |
248 | ||
249 | static void test_fsck_exists(void) { | |
250 | /* Ensure we use a sane default for PATH. */ | |
251 | unsetenv("PATH"); | |
252 | ||
253 | /* fsck.minix is provided by util-linux and will probably exist. */ | |
254 | assert_se(fsck_exists("minix") == 1); | |
255 | ||
256 | assert_se(fsck_exists("AbCdE") == 0); | |
257 | assert_se(fsck_exists("/../bin/") == 0); | |
258 | } | |
259 | ||
260 | static void test_make_relative(void) { | |
261 | char *result; | |
262 | ||
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); | |
265 | assert_se(path_make_relative("/some/dotdot/../path", "/some/path", &result) < 0); | |
266 | ||
267 | #define test(from_dir, to_path, expected) { \ | |
268 | _cleanup_free_ char *z = NULL; \ | |
269 | path_make_relative(from_dir, to_path, &z); \ | |
270 | assert_se(streq(z, expected)); \ | |
271 | } | |
272 | ||
273 | test("/", "/", "."); | |
274 | test("/", "/some/path", "some/path"); | |
275 | test("/some/path", "/some/path", "."); | |
276 | test("/some/path", "/some/path/in/subdir", "in/subdir"); | |
277 | test("/some/path", "/", "../.."); | |
278 | test("/some/path", "/some/other/path", "../other/path"); | |
279 | test("/some/path/./dot", "/some/further/path", "../../further/path"); | |
280 | test("//extra/////slashes///won't////fool///anybody//", "////extra///slashes////are/just///fine///", "../../../are/just/fine"); | |
281 | } | |
282 | ||
283 | static void test_strv_resolve(void) { | |
284 | char tmp_dir[] = "/tmp/test-path-util-XXXXXX"; | |
285 | _cleanup_strv_free_ char **search_dirs = NULL; | |
286 | _cleanup_strv_free_ char **absolute_dirs = NULL; | |
287 | char **d; | |
288 | ||
289 | assert_se(mkdtemp(tmp_dir) != NULL); | |
290 | ||
291 | search_dirs = strv_new("/dir1", "/dir2", "/dir3", NULL); | |
292 | assert_se(search_dirs); | |
293 | STRV_FOREACH(d, search_dirs) { | |
294 | char *p = strappend(tmp_dir, *d); | |
295 | assert_se(p); | |
296 | assert_se(strv_push(&absolute_dirs, p) == 0); | |
297 | } | |
298 | ||
299 | assert_se(mkdir(absolute_dirs[0], 0700) == 0); | |
300 | assert_se(mkdir(absolute_dirs[1], 0700) == 0); | |
301 | assert_se(symlink("dir2", absolute_dirs[2]) == 0); | |
302 | ||
303 | path_strv_resolve(search_dirs, tmp_dir); | |
304 | assert_se(streq(search_dirs[0], "/dir1")); | |
305 | assert_se(streq(search_dirs[1], "/dir2")); | |
306 | assert_se(streq(search_dirs[2], "/dir2")); | |
307 | ||
308 | assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0); | |
309 | } | |
310 | ||
311 | static void test_path_startswith(void) { | |
312 | const char *p; | |
313 | ||
314 | p = path_startswith("/foo/bar/barfoo/", "/foo"); | |
315 | assert_se(streq_ptr(p, "bar/barfoo/")); | |
316 | ||
317 | p = path_startswith("/foo/bar/barfoo/", "/foo/"); | |
318 | assert_se(streq_ptr(p, "bar/barfoo/")); | |
319 | ||
320 | p = path_startswith("/foo/bar/barfoo/", "/"); | |
321 | assert_se(streq_ptr(p, "foo/bar/barfoo/")); | |
322 | ||
323 | p = path_startswith("/foo/bar/barfoo/", "////"); | |
324 | assert_se(streq_ptr(p, "foo/bar/barfoo/")); | |
325 | ||
326 | p = path_startswith("/foo/bar/barfoo/", "/foo//bar/////barfoo///"); | |
327 | assert_se(streq_ptr(p, "")); | |
328 | ||
329 | p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo////"); | |
330 | assert_se(streq_ptr(p, "")); | |
331 | ||
332 | p = path_startswith("/foo/bar/barfoo/", "/foo/bar///barfoo/"); | |
333 | assert_se(streq_ptr(p, "")); | |
334 | ||
335 | p = path_startswith("/foo/bar/barfoo/", "/foo////bar/barfoo/"); | |
336 | assert_se(streq_ptr(p, "")); | |
337 | ||
338 | p = path_startswith("/foo/bar/barfoo/", "////foo/bar/barfoo/"); | |
339 | assert_se(streq_ptr(p, "")); | |
340 | ||
341 | p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo"); | |
342 | assert_se(streq_ptr(p, "")); | |
343 | ||
344 | assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa/")); | |
345 | assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa")); | |
346 | assert_se(!path_startswith("/foo/bar/barfoo/", "")); | |
347 | assert_se(!path_startswith("/foo/bar/barfoo/", "/bar/foo")); | |
348 | assert_se(!path_startswith("/foo/bar/barfoo/", "/f/b/b/")); | |
349 | } | |
350 | ||
351 | static void test_prefix_root_one(const char *r, const char *p, const char *expected) { | |
352 | _cleanup_free_ char *s = NULL; | |
353 | const char *t; | |
354 | ||
355 | assert_se(s = prefix_root(r, p)); | |
356 | assert_se(streq_ptr(s, expected)); | |
357 | ||
358 | t = prefix_roota(r, p); | |
359 | assert_se(t); | |
360 | assert_se(streq_ptr(t, expected)); | |
361 | } | |
362 | ||
363 | static void test_prefix_root(void) { | |
364 | test_prefix_root_one("/", "/foo", "/foo"); | |
365 | test_prefix_root_one(NULL, "/foo", "/foo"); | |
366 | test_prefix_root_one("", "/foo", "/foo"); | |
367 | test_prefix_root_one("///", "/foo", "/foo"); | |
368 | test_prefix_root_one("/", "////foo", "/foo"); | |
369 | test_prefix_root_one(NULL, "////foo", "/foo"); | |
370 | ||
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"); | |
376 | test_prefix_root_one("/foo///", "//bar", "/foo/bar"); | |
377 | } | |
378 | ||
379 | static void test_path_is_mount_point(void) { | |
380 | int fd; | |
381 | char tmp_dir[] = "/tmp/test-path-is-mount-point-XXXXXX"; | |
382 | _cleanup_free_ char *file1 = NULL, *file2 = NULL, *link1 = NULL, *link2 = NULL; | |
383 | _cleanup_free_ char *dir1 = NULL, *dir1file = NULL, *dirlink1 = NULL, *dirlink1file = NULL; | |
384 | _cleanup_free_ char *dir2 = NULL, *dir2file = NULL; | |
385 | ||
386 | assert_se(path_is_mount_point("/", NULL, AT_SYMLINK_FOLLOW) > 0); | |
387 | assert_se(path_is_mount_point("/", NULL, 0) > 0); | |
388 | ||
389 | assert_se(path_is_mount_point("/proc", NULL, AT_SYMLINK_FOLLOW) > 0); | |
390 | assert_se(path_is_mount_point("/proc", NULL, 0) > 0); | |
391 | ||
392 | assert_se(path_is_mount_point("/proc/1", NULL, AT_SYMLINK_FOLLOW) == 0); | |
393 | assert_se(path_is_mount_point("/proc/1", NULL, 0) == 0); | |
394 | ||
395 | assert_se(path_is_mount_point("/sys", NULL, AT_SYMLINK_FOLLOW) > 0); | |
396 | assert_se(path_is_mount_point("/sys", NULL, 0) > 0); | |
397 | ||
398 | /* we'll create a hierarchy of different kinds of dir/file/link | |
399 | * layouts: | |
400 | * | |
401 | * <tmp>/file1, <tmp>/file2 | |
402 | * <tmp>/link1 -> file1, <tmp>/link2 -> file2 | |
403 | * <tmp>/dir1/ | |
404 | * <tmp>/dir1/file | |
405 | * <tmp>/dirlink1 -> dir1 | |
406 | * <tmp>/dirlink1file -> dirlink1/file | |
407 | * <tmp>/dir2/ | |
408 | * <tmp>/dir2/file | |
409 | */ | |
410 | ||
411 | /* file mountpoints */ | |
412 | assert_se(mkdtemp(tmp_dir) != NULL); | |
413 | file1 = path_join(NULL, tmp_dir, "file1"); | |
414 | assert_se(file1); | |
415 | file2 = path_join(NULL, tmp_dir, "file2"); | |
416 | assert_se(file2); | |
417 | fd = open(file1, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664); | |
418 | assert_se(fd > 0); | |
419 | close(fd); | |
420 | fd = open(file2, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664); | |
421 | assert_se(fd > 0); | |
422 | close(fd); | |
423 | link1 = path_join(NULL, tmp_dir, "link1"); | |
424 | assert_se(link1); | |
425 | assert_se(symlink("file1", link1) == 0); | |
426 | link2 = path_join(NULL, tmp_dir, "link2"); | |
427 | assert_se(link1); | |
428 | assert_se(symlink("file2", link2) == 0); | |
429 | ||
430 | assert_se(path_is_mount_point(file1, NULL, AT_SYMLINK_FOLLOW) == 0); | |
431 | assert_se(path_is_mount_point(file1, NULL, 0) == 0); | |
432 | assert_se(path_is_mount_point(link1, NULL, AT_SYMLINK_FOLLOW) == 0); | |
433 | assert_se(path_is_mount_point(link1, NULL, 0) == 0); | |
434 | ||
435 | /* directory mountpoints */ | |
436 | dir1 = path_join(NULL, tmp_dir, "dir1"); | |
437 | assert_se(dir1); | |
438 | assert_se(mkdir(dir1, 0755) == 0); | |
439 | dirlink1 = path_join(NULL, tmp_dir, "dirlink1"); | |
440 | assert_se(dirlink1); | |
441 | assert_se(symlink("dir1", dirlink1) == 0); | |
442 | dirlink1file = path_join(NULL, tmp_dir, "dirlink1file"); | |
443 | assert_se(dirlink1file); | |
444 | assert_se(symlink("dirlink1/file", dirlink1file) == 0); | |
445 | dir2 = path_join(NULL, tmp_dir, "dir2"); | |
446 | assert_se(dir2); | |
447 | assert_se(mkdir(dir2, 0755) == 0); | |
448 | ||
449 | assert_se(path_is_mount_point(dir1, NULL, AT_SYMLINK_FOLLOW) == 0); | |
450 | assert_se(path_is_mount_point(dir1, NULL, 0) == 0); | |
451 | assert_se(path_is_mount_point(dirlink1, NULL, AT_SYMLINK_FOLLOW) == 0); | |
452 | assert_se(path_is_mount_point(dirlink1, NULL, 0) == 0); | |
453 | ||
454 | /* file in subdirectory mountpoints */ | |
455 | dir1file = path_join(NULL, dir1, "file"); | |
456 | assert_se(dir1file); | |
457 | fd = open(dir1file, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664); | |
458 | assert_se(fd > 0); | |
459 | close(fd); | |
460 | ||
461 | assert_se(path_is_mount_point(dir1file, NULL, AT_SYMLINK_FOLLOW) == 0); | |
462 | assert_se(path_is_mount_point(dir1file, NULL, 0) == 0); | |
463 | assert_se(path_is_mount_point(dirlink1file, NULL, AT_SYMLINK_FOLLOW) == 0); | |
464 | assert_se(path_is_mount_point(dirlink1file, NULL, 0) == 0); | |
465 | ||
466 | /* these tests will only work as root */ | |
467 | if (mount(file1, file2, NULL, MS_BIND, NULL) >= 0) { | |
468 | int rt, rf, rlt, rlf, rl1t, rl1f; | |
469 | ||
470 | /* files */ | |
471 | /* capture results in vars, to avoid dangling mounts on failure */ | |
472 | rf = path_is_mount_point(file2, NULL, 0); | |
473 | rt = path_is_mount_point(file2, NULL, AT_SYMLINK_FOLLOW); | |
474 | rlf = path_is_mount_point(link2, NULL, 0); | |
475 | rlt = path_is_mount_point(link2, NULL, AT_SYMLINK_FOLLOW); | |
476 | ||
477 | assert_se(umount(file2) == 0); | |
478 | ||
479 | assert_se(rf == 1); | |
480 | assert_se(rt == 1); | |
481 | assert_se(rlf == 0); | |
482 | assert_se(rlt == 1); | |
483 | ||
484 | /* dirs */ | |
485 | dir2file = path_join(NULL, dir2, "file"); | |
486 | assert_se(dir2file); | |
487 | fd = open(dir2file, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664); | |
488 | assert_se(fd > 0); | |
489 | close(fd); | |
490 | ||
491 | assert_se(mount(dir2, dir1, NULL, MS_BIND, NULL) >= 0); | |
492 | ||
493 | rf = path_is_mount_point(dir1, NULL, 0); | |
494 | rt = path_is_mount_point(dir1, NULL, AT_SYMLINK_FOLLOW); | |
495 | rlf = path_is_mount_point(dirlink1, NULL, 0); | |
496 | rlt = path_is_mount_point(dirlink1, NULL, AT_SYMLINK_FOLLOW); | |
497 | /* its parent is a mount point, but not /file itself */ | |
498 | rl1f = path_is_mount_point(dirlink1file, NULL, 0); | |
499 | rl1t = path_is_mount_point(dirlink1file, NULL, AT_SYMLINK_FOLLOW); | |
500 | ||
501 | assert_se(umount(dir1) == 0); | |
502 | ||
503 | assert_se(rf == 1); | |
504 | assert_se(rt == 1); | |
505 | assert_se(rlf == 0); | |
506 | assert_se(rlt == 1); | |
507 | assert_se(rl1f == 0); | |
508 | assert_se(rl1t == 0); | |
509 | ||
510 | } else | |
511 | printf("Skipping bind mount file test: %m\n"); | |
512 | ||
513 | assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0); | |
514 | } | |
515 | ||
516 | static void test_file_in_same_dir(void) { | |
517 | char *t; | |
518 | ||
519 | t = file_in_same_dir("/", "a"); | |
520 | assert_se(streq(t, "/a")); | |
521 | free(t); | |
522 | ||
523 | t = file_in_same_dir("/", "/a"); | |
524 | assert_se(streq(t, "/a")); | |
525 | free(t); | |
526 | ||
527 | t = file_in_same_dir("", "a"); | |
528 | assert_se(streq(t, "a")); | |
529 | free(t); | |
530 | ||
531 | t = file_in_same_dir("a/", "a"); | |
532 | assert_se(streq(t, "a/a")); | |
533 | free(t); | |
534 | ||
535 | t = file_in_same_dir("bar/foo", "bar"); | |
536 | assert_se(streq(t, "bar/bar")); | |
537 | free(t); | |
538 | } | |
539 | ||
540 | static void test_filename_is_valid(void) { | |
541 | char foo[FILENAME_MAX+2]; | |
542 | int i; | |
543 | ||
544 | assert_se(!filename_is_valid("")); | |
545 | assert_se(!filename_is_valid("/bar/foo")); | |
546 | assert_se(!filename_is_valid("/")); | |
547 | assert_se(!filename_is_valid(".")); | |
548 | assert_se(!filename_is_valid("..")); | |
549 | ||
550 | for (i=0; i<FILENAME_MAX+1; i++) | |
551 | foo[i] = 'a'; | |
552 | foo[FILENAME_MAX+1] = '\0'; | |
553 | ||
554 | assert_se(!filename_is_valid(foo)); | |
555 | ||
556 | assert_se(filename_is_valid("foo_bar-333")); | |
557 | assert_se(filename_is_valid("o.o")); | |
558 | } | |
559 | ||
560 | static void test_hidden_or_backup_file(void) { | |
561 | assert_se(hidden_or_backup_file(".hidden")); | |
562 | assert_se(hidden_or_backup_file("..hidden")); | |
563 | assert_se(!hidden_or_backup_file("hidden.")); | |
564 | ||
565 | assert_se(hidden_or_backup_file("backup~")); | |
566 | assert_se(hidden_or_backup_file(".backup~")); | |
567 | ||
568 | assert_se(hidden_or_backup_file("lost+found")); | |
569 | assert_se(hidden_or_backup_file("aquota.user")); | |
570 | assert_se(hidden_or_backup_file("aquota.group")); | |
571 | ||
572 | assert_se(hidden_or_backup_file("test.rpmnew")); | |
573 | assert_se(hidden_or_backup_file("test.dpkg-old")); | |
574 | assert_se(hidden_or_backup_file("test.dpkg-remove")); | |
575 | assert_se(hidden_or_backup_file("test.swp")); | |
576 | ||
577 | assert_se(!hidden_or_backup_file("test.rpmnew.")); | |
578 | assert_se(!hidden_or_backup_file("test.dpkg-old.foo")); | |
579 | } | |
580 | ||
581 | static void test_systemd_installation_has_version(const char *path) { | |
582 | int r; | |
583 | const unsigned versions[] = {0, 231, atoi(PACKAGE_VERSION), 999}; | |
584 | unsigned i; | |
585 | ||
586 | for (i = 0; i < ELEMENTSOF(versions); i++) { | |
587 | r = systemd_installation_has_version(path, versions[i]); | |
588 | assert_se(r >= 0); | |
589 | log_info("%s has systemd >= %u: %s", | |
590 | path ?: "Current installation", versions[i], yes_no(r)); | |
591 | } | |
592 | } | |
593 | ||
594 | static void test_skip_dev_prefix(void) { | |
595 | ||
596 | assert_se(streq(skip_dev_prefix("/"), "/")); | |
597 | assert_se(streq(skip_dev_prefix("/dev"), "")); | |
598 | assert_se(streq(skip_dev_prefix("/dev/"), "")); | |
599 | assert_se(streq(skip_dev_prefix("/dev/foo"), "foo")); | |
600 | assert_se(streq(skip_dev_prefix("/dev/foo/bar"), "foo/bar")); | |
601 | assert_se(streq(skip_dev_prefix("//dev"), "")); | |
602 | assert_se(streq(skip_dev_prefix("//dev//"), "")); | |
603 | assert_se(streq(skip_dev_prefix("/dev///foo"), "foo")); | |
604 | assert_se(streq(skip_dev_prefix("///dev///foo///bar"), "foo///bar")); | |
605 | assert_se(streq(skip_dev_prefix("//foo"), "//foo")); | |
606 | assert_se(streq(skip_dev_prefix("foo"), "foo")); | |
607 | } | |
608 | ||
609 | int main(int argc, char **argv) { | |
610 | log_set_max_level(LOG_DEBUG); | |
611 | log_parse_environment(); | |
612 | log_open(); | |
613 | ||
614 | test_path(); | |
615 | test_path_equal_root(); | |
616 | test_find_binary(argv[0]); | |
617 | test_prefixes(); | |
618 | test_path_join(); | |
619 | test_fsck_exists(); | |
620 | test_make_relative(); | |
621 | test_strv_resolve(); | |
622 | test_path_startswith(); | |
623 | test_prefix_root(); | |
624 | test_path_is_mount_point(); | |
625 | test_file_in_same_dir(); | |
626 | test_filename_is_valid(); | |
627 | test_hidden_or_backup_file(); | |
628 | test_skip_dev_prefix(); | |
629 | ||
630 | test_systemd_installation_has_version(argv[1]); /* NULL is OK */ | |
631 | ||
632 | return 0; | |
633 | } |