]>
git.ipfire.org Git - thirdparty/systemd.git/blob - src/test/test-fs-util.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
5 #include "alloc-util.h"
9 #include "id128-util.h"
12 #include "path-util.h"
14 #include "stdio-util.h"
15 #include "string-util.h"
18 #include "tmpfile-util.h"
19 #include "user-util.h"
23 static const char *arg_test_dir
= NULL
;
25 static void test_chase_symlinks(void) {
26 _cleanup_free_
char *result
= NULL
;
28 const char *top
, *p
, *pslash
, *q
, *qslash
;
32 log_info("/* %s */", __func__
);
34 temp
= strjoina(arg_test_dir
?: "/tmp", "/test-chase.XXXXXX");
35 assert_se(mkdtemp(temp
));
37 top
= strjoina(temp
, "/top");
38 assert_se(mkdir(top
, 0700) >= 0);
40 p
= strjoina(top
, "/dot");
41 if (symlink(".", p
) < 0) {
42 assert_se(IN_SET(errno
, EINVAL
, ENOSYS
, ENOTTY
, EPERM
));
43 log_tests_skipped_errno(errno
, "symlink() not possible");
47 p
= strjoina(top
, "/dotdot");
48 assert_se(symlink("..", p
) >= 0);
50 p
= strjoina(top
, "/dotdota");
51 assert_se(symlink("../a", p
) >= 0);
53 p
= strjoina(temp
, "/a");
54 assert_se(symlink("b", p
) >= 0);
56 p
= strjoina(temp
, "/b");
57 assert_se(symlink("/usr", p
) >= 0);
59 p
= strjoina(temp
, "/start");
60 assert_se(symlink("top/dot/dotdota", p
) >= 0);
62 /* Paths that use symlinks underneath the "root" */
64 r
= chase_symlinks(p
, NULL
, 0, &result
);
66 assert_se(path_equal(result
, "/usr"));
67 result
= mfree(result
);
69 pslash
= strjoina(p
, "/");
70 r
= chase_symlinks(pslash
, NULL
, 0, &result
);
72 assert_se(path_equal(result
, "/usr/"));
73 result
= mfree(result
);
75 r
= chase_symlinks(p
, temp
, 0, &result
);
76 assert_se(r
== -ENOENT
);
78 r
= chase_symlinks(pslash
, temp
, 0, &result
);
79 assert_se(r
== -ENOENT
);
81 q
= strjoina(temp
, "/usr");
83 r
= chase_symlinks(p
, temp
, CHASE_NONEXISTENT
, &result
);
85 assert_se(path_equal(result
, q
));
86 result
= mfree(result
);
88 qslash
= strjoina(q
, "/");
90 r
= chase_symlinks(pslash
, temp
, CHASE_NONEXISTENT
, &result
);
92 assert_se(path_equal(result
, qslash
));
93 result
= mfree(result
);
95 assert_se(mkdir(q
, 0700) >= 0);
97 r
= chase_symlinks(p
, temp
, 0, &result
);
99 assert_se(path_equal(result
, q
));
100 result
= mfree(result
);
102 r
= chase_symlinks(pslash
, temp
, 0, &result
);
104 assert_se(path_equal(result
, qslash
));
105 result
= mfree(result
);
107 p
= strjoina(temp
, "/slash");
108 assert_se(symlink("/", p
) >= 0);
110 r
= chase_symlinks(p
, NULL
, 0, &result
);
112 assert_se(path_equal(result
, "/"));
113 result
= mfree(result
);
115 r
= chase_symlinks(p
, temp
, 0, &result
);
117 assert_se(path_equal(result
, temp
));
118 result
= mfree(result
);
120 /* Paths that would "escape" outside of the "root" */
122 p
= strjoina(temp
, "/6dots");
123 assert_se(symlink("../../..", p
) >= 0);
125 r
= chase_symlinks(p
, temp
, 0, &result
);
126 assert_se(r
> 0 && path_equal(result
, temp
));
127 result
= mfree(result
);
129 p
= strjoina(temp
, "/6dotsusr");
130 assert_se(symlink("../../../usr", p
) >= 0);
132 r
= chase_symlinks(p
, temp
, 0, &result
);
133 assert_se(r
> 0 && path_equal(result
, q
));
134 result
= mfree(result
);
136 p
= strjoina(temp
, "/top/8dotsusr");
137 assert_se(symlink("../../../../usr", p
) >= 0);
139 r
= chase_symlinks(p
, temp
, 0, &result
);
140 assert_se(r
> 0 && path_equal(result
, q
));
141 result
= mfree(result
);
143 /* Paths that contain repeated slashes */
145 p
= strjoina(temp
, "/slashslash");
146 assert_se(symlink("///usr///", p
) >= 0);
148 r
= chase_symlinks(p
, NULL
, 0, &result
);
150 assert_se(path_equal(result
, "/usr"));
151 result
= mfree(result
);
153 r
= chase_symlinks(p
, temp
, 0, &result
);
155 assert_se(path_equal(result
, q
));
156 result
= mfree(result
);
160 r
= chase_symlinks("/etc/./.././", NULL
, 0, &result
);
162 assert_se(path_equal(result
, "/"));
163 result
= mfree(result
);
165 r
= chase_symlinks("/etc/./.././", "/etc", 0, &result
);
166 assert_se(r
> 0 && path_equal(result
, "/etc"));
167 result
= mfree(result
);
169 r
= chase_symlinks("/../.././//../../etc", NULL
, 0, &result
);
171 assert_se(streq(result
, "/etc"));
172 result
= mfree(result
);
174 r
= chase_symlinks("/../.././//../../test-chase.fsldajfl", NULL
, CHASE_NONEXISTENT
, &result
);
176 assert_se(streq(result
, "/test-chase.fsldajfl"));
177 result
= mfree(result
);
179 r
= chase_symlinks("/../.././//../../etc", "/", CHASE_PREFIX_ROOT
, &result
);
181 assert_se(streq(result
, "/etc"));
182 result
= mfree(result
);
184 r
= chase_symlinks("/../.././//../../test-chase.fsldajfl", "/", CHASE_PREFIX_ROOT
|CHASE_NONEXISTENT
, &result
);
186 assert_se(streq(result
, "/test-chase.fsldajfl"));
187 result
= mfree(result
);
189 r
= chase_symlinks("/etc/machine-id/foo", NULL
, 0, &result
);
190 assert_se(r
== -ENOTDIR
);
191 result
= mfree(result
);
193 /* Path that loops back to self */
195 p
= strjoina(temp
, "/recursive-symlink");
196 assert_se(symlink("recursive-symlink", p
) >= 0);
197 r
= chase_symlinks(p
, NULL
, 0, &result
);
198 assert_se(r
== -ELOOP
);
200 /* Path which doesn't exist */
202 p
= strjoina(temp
, "/idontexist");
203 r
= chase_symlinks(p
, NULL
, 0, &result
);
204 assert_se(r
== -ENOENT
);
206 r
= chase_symlinks(p
, NULL
, CHASE_NONEXISTENT
, &result
);
208 assert_se(path_equal(result
, p
));
209 result
= mfree(result
);
211 p
= strjoina(temp
, "/idontexist/meneither");
212 r
= chase_symlinks(p
, NULL
, 0, &result
);
213 assert_se(r
== -ENOENT
);
215 r
= chase_symlinks(p
, NULL
, CHASE_NONEXISTENT
, &result
);
217 assert_se(path_equal(result
, p
));
218 result
= mfree(result
);
220 /* Path which doesn't exist, but contains weird stuff */
222 p
= strjoina(temp
, "/idontexist/..");
223 r
= chase_symlinks(p
, NULL
, 0, &result
);
224 assert_se(r
== -ENOENT
);
226 r
= chase_symlinks(p
, NULL
, CHASE_NONEXISTENT
, &result
);
227 assert_se(r
== -ENOENT
);
229 p
= strjoina(temp
, "/target");
230 q
= strjoina(temp
, "/top");
231 assert_se(symlink(q
, p
) >= 0);
232 p
= strjoina(temp
, "/target/idontexist");
233 r
= chase_symlinks(p
, NULL
, 0, &result
);
234 assert_se(r
== -ENOENT
);
236 if (geteuid() == 0) {
237 p
= strjoina(temp
, "/priv1");
238 assert_se(mkdir(p
, 0755) >= 0);
240 q
= strjoina(p
, "/priv2");
241 assert_se(mkdir(q
, 0755) >= 0);
243 assert_se(chase_symlinks(q
, NULL
, CHASE_SAFE
, NULL
) >= 0);
245 assert_se(chown(q
, UID_NOBODY
, GID_NOBODY
) >= 0);
246 assert_se(chase_symlinks(q
, NULL
, CHASE_SAFE
, NULL
) >= 0);
248 assert_se(chown(p
, UID_NOBODY
, GID_NOBODY
) >= 0);
249 assert_se(chase_symlinks(q
, NULL
, CHASE_SAFE
, NULL
) >= 0);
251 assert_se(chown(q
, 0, 0) >= 0);
252 assert_se(chase_symlinks(q
, NULL
, CHASE_SAFE
, NULL
) == -EPERM
);
254 assert_se(rmdir(q
) >= 0);
255 assert_se(symlink("/etc/passwd", q
) >= 0);
256 assert_se(chase_symlinks(q
, NULL
, CHASE_SAFE
, NULL
) == -EPERM
);
258 assert_se(chown(p
, 0, 0) >= 0);
259 assert_se(chase_symlinks(q
, NULL
, CHASE_SAFE
, NULL
) >= 0);
262 p
= strjoina(temp
, "/machine-id-test");
263 assert_se(symlink("/usr/../etc/./machine-id", p
) >= 0);
265 pfd
= chase_symlinks(p
, NULL
, CHASE_OPEN
, NULL
);
266 if (pfd
!= -ENOENT
) {
267 _cleanup_close_
int fd
= -1;
272 fd
= fd_reopen(pfd
, O_RDONLY
|O_CLOEXEC
);
276 assert_se(id128_read_fd(fd
, ID128_PLAIN
, &a
) >= 0);
277 assert_se(sd_id128_get_machine(&b
) >= 0);
278 assert_se(sd_id128_equal(a
, b
));
281 /* Test CHASE_NOFOLLOW */
283 p
= strjoina(temp
, "/target");
284 q
= strjoina(temp
, "/symlink");
285 assert_se(symlink(p
, q
) >= 0);
286 pfd
= chase_symlinks(q
, NULL
, CHASE_OPEN
|CHASE_NOFOLLOW
, &result
);
288 assert_se(path_equal(result
, q
));
289 assert_se(fstat(pfd
, &st
) >= 0);
290 assert_se(S_ISLNK(st
.st_mode
));
291 result
= mfree(result
);
293 /* s1 -> s2 -> nonexistent */
294 q
= strjoina(temp
, "/s1");
295 assert_se(symlink("s2", q
) >= 0);
296 p
= strjoina(temp
, "/s2");
297 assert_se(symlink("nonexistent", p
) >= 0);
298 pfd
= chase_symlinks(q
, NULL
, CHASE_OPEN
|CHASE_NOFOLLOW
, &result
);
300 assert_se(path_equal(result
, q
));
301 assert_se(fstat(pfd
, &st
) >= 0);
302 assert_se(S_ISLNK(st
.st_mode
));
303 result
= mfree(result
);
307 p
= strjoina(temp
, "/start");
308 r
= chase_symlinks(p
, NULL
, CHASE_STEP
, &result
);
310 p
= strjoina(temp
, "/top/dot/dotdota");
311 assert_se(streq(p
, result
));
312 result
= mfree(result
);
314 r
= chase_symlinks(p
, NULL
, CHASE_STEP
, &result
);
316 p
= strjoina(temp
, "/top/./dotdota");
317 assert_se(streq(p
, result
));
318 result
= mfree(result
);
320 r
= chase_symlinks(p
, NULL
, CHASE_STEP
, &result
);
322 p
= strjoina(temp
, "/top/../a");
323 assert_se(streq(p
, result
));
324 result
= mfree(result
);
326 r
= chase_symlinks(p
, NULL
, CHASE_STEP
, &result
);
328 p
= strjoina(temp
, "/a");
329 assert_se(streq(p
, result
));
330 result
= mfree(result
);
332 r
= chase_symlinks(p
, NULL
, CHASE_STEP
, &result
);
334 p
= strjoina(temp
, "/b");
335 assert_se(streq(p
, result
));
336 result
= mfree(result
);
338 r
= chase_symlinks(p
, NULL
, CHASE_STEP
, &result
);
340 assert_se(streq("/usr", result
));
341 result
= mfree(result
);
343 r
= chase_symlinks("/usr", NULL
, CHASE_STEP
, &result
);
345 assert_se(streq("/usr", result
));
346 result
= mfree(result
);
349 assert_se(rm_rf(temp
, REMOVE_ROOT
|REMOVE_PHYSICAL
) >= 0);
352 static void test_unlink_noerrno(void) {
356 log_info("/* %s */", __func__
);
358 name
= strjoina(arg_test_dir
?: "/tmp", "/test-close_nointr.XXXXXX");
359 fd
= mkostemp_safe(name
);
361 assert_se(close_nointr(fd
) >= 0);
366 assert_se(unlink_noerrno(name
) >= 0);
367 assert_se(errno
== -42);
368 assert_se(unlink_noerrno(name
) < 0);
369 assert_se(errno
== -42);
373 static void test_readlink_and_make_absolute(void) {
374 const char *tempdir
, *name
, *name2
, *name_alias
;
375 _cleanup_free_
char *r1
= NULL
, *r2
= NULL
, *pwd
= NULL
;
377 log_info("/* %s */", __func__
);
379 tempdir
= strjoina(arg_test_dir
?: "/tmp", "/test-readlink_and_make_absolute");
380 name
= strjoina(tempdir
, "/original");
381 name2
= "test-readlink_and_make_absolute/original";
382 name_alias
= strjoina(arg_test_dir
?: "/tmp", "/test-readlink_and_make_absolute-alias");
384 assert_se(mkdir_safe(tempdir
, 0755, getuid(), getgid(), MKDIR_WARN_MODE
) >= 0);
385 assert_se(touch(name
) >= 0);
387 if (symlink(name
, name_alias
) < 0) {
388 assert_se(IN_SET(errno
, EINVAL
, ENOSYS
, ENOTTY
, EPERM
));
389 log_tests_skipped_errno(errno
, "symlink() not possible");
391 assert_se(readlink_and_make_absolute(name_alias
, &r1
) >= 0);
392 assert_se(streq(r1
, name
));
393 assert_se(unlink(name_alias
) >= 0);
395 assert_se(safe_getcwd(&pwd
) >= 0);
397 assert_se(chdir(tempdir
) >= 0);
398 assert_se(symlink(name2
, name_alias
) >= 0);
399 assert_se(readlink_and_make_absolute(name_alias
, &r2
) >= 0);
400 assert_se(streq(r2
, name
));
401 assert_se(unlink(name_alias
) >= 0);
403 assert_se(chdir(pwd
) >= 0);
406 assert_se(rm_rf(tempdir
, REMOVE_ROOT
|REMOVE_PHYSICAL
) >= 0);
409 static void test_get_files_in_directory(void) {
410 _cleanup_strv_free_
char **l
= NULL
, **t
= NULL
;
412 assert_se(get_files_in_directory(arg_test_dir
?: "/tmp", &l
) >= 0);
413 assert_se(get_files_in_directory(".", &t
) >= 0);
414 assert_se(get_files_in_directory(".", NULL
) >= 0);
417 static void test_var_tmp(void) {
418 _cleanup_free_
char *tmpdir_backup
= NULL
, *temp_backup
= NULL
, *tmp_backup
= NULL
;
419 const char *tmp_dir
= NULL
, *t
;
421 log_info("/* %s */", __func__
);
423 t
= getenv("TMPDIR");
425 tmpdir_backup
= strdup(t
);
426 assert_se(tmpdir_backup
);
431 temp_backup
= strdup(t
);
432 assert_se(temp_backup
);
437 tmp_backup
= strdup(t
);
438 assert_se(tmp_backup
);
441 assert_se(unsetenv("TMPDIR") >= 0);
442 assert_se(unsetenv("TEMP") >= 0);
443 assert_se(unsetenv("TMP") >= 0);
445 assert_se(var_tmp_dir(&tmp_dir
) >= 0);
446 assert_se(streq(tmp_dir
, "/var/tmp"));
448 assert_se(setenv("TMPDIR", "/tmp", true) >= 0);
449 assert_se(streq(getenv("TMPDIR"), "/tmp"));
451 assert_se(var_tmp_dir(&tmp_dir
) >= 0);
452 assert_se(streq(tmp_dir
, "/tmp"));
454 assert_se(setenv("TMPDIR", "/88_does_not_exist_88", true) >= 0);
455 assert_se(streq(getenv("TMPDIR"), "/88_does_not_exist_88"));
457 assert_se(var_tmp_dir(&tmp_dir
) >= 0);
458 assert_se(streq(tmp_dir
, "/var/tmp"));
461 assert_se(setenv("TMPDIR", tmpdir_backup
, true) >= 0);
462 assert_se(streq(getenv("TMPDIR"), tmpdir_backup
));
466 assert_se(setenv("TEMP", temp_backup
, true) >= 0);
467 assert_se(streq(getenv("TEMP"), temp_backup
));
471 assert_se(setenv("TMP", tmp_backup
, true) >= 0);
472 assert_se(streq(getenv("TMP"), tmp_backup
));
476 static void test_dot_or_dot_dot(void) {
477 log_info("/* %s */", __func__
);
479 assert_se(!dot_or_dot_dot(NULL
));
480 assert_se(!dot_or_dot_dot(""));
481 assert_se(!dot_or_dot_dot("xxx"));
482 assert_se(dot_or_dot_dot("."));
483 assert_se(dot_or_dot_dot(".."));
484 assert_se(!dot_or_dot_dot(".foo"));
485 assert_se(!dot_or_dot_dot("..foo"));
488 static void test_access_fd(void) {
489 _cleanup_(rmdir_and_freep
) char *p
= NULL
;
490 _cleanup_close_
int fd
= -1;
493 log_info("/* %s */", __func__
);
495 a
= strjoina(arg_test_dir
?: "/tmp", "/access-fd.XXXXXX");
496 assert_se(mkdtemp_malloc(a
, &p
) >= 0);
498 fd
= open(p
, O_RDONLY
|O_DIRECTORY
|O_CLOEXEC
);
501 assert_se(access_fd(fd
, R_OK
) >= 0);
502 assert_se(access_fd(fd
, F_OK
) >= 0);
503 assert_se(access_fd(fd
, W_OK
) >= 0);
505 assert_se(fchmod(fd
, 0000) >= 0);
507 assert_se(access_fd(fd
, F_OK
) >= 0);
509 if (geteuid() == 0) {
510 assert_se(access_fd(fd
, R_OK
) >= 0);
511 assert_se(access_fd(fd
, W_OK
) >= 0);
513 assert_se(access_fd(fd
, R_OK
) == -EACCES
);
514 assert_se(access_fd(fd
, W_OK
) == -EACCES
);
518 static void test_touch_file(void) {
519 uid_t test_uid
, test_gid
;
520 _cleanup_(rm_rf_physical_and_freep
) char *p
= NULL
;
526 log_info("/* %s */", __func__
);
528 test_uid
= geteuid() == 0 ? 65534 : getuid();
529 test_gid
= geteuid() == 0 ? 65534 : getgid();
531 test_mtime
= usec_sub_unsigned(now(CLOCK_REALTIME
), USEC_PER_WEEK
);
533 a
= strjoina(arg_test_dir
?: "/dev/shm", "/touch-file-XXXXXX");
534 assert_se(mkdtemp_malloc(a
, &p
) >= 0);
536 a
= strjoina(p
, "/regular");
537 r
= touch_file(a
, false, test_mtime
, test_uid
, test_gid
, 0640);
539 assert_se(IN_SET(r
, -EINVAL
, -ENOSYS
, -ENOTTY
, -EPERM
));
540 log_tests_skipped_errno(errno
, "touch_file() not possible");
544 assert_se(lstat(a
, &st
) >= 0);
545 assert_se(st
.st_uid
== test_uid
);
546 assert_se(st
.st_gid
== test_gid
);
547 assert_se(S_ISREG(st
.st_mode
));
548 assert_se((st
.st_mode
& 0777) == 0640);
549 assert_se(timespec_load(&st
.st_mtim
) == test_mtime
);
551 a
= strjoina(p
, "/dir");
552 assert_se(mkdir(a
, 0775) >= 0);
553 assert_se(touch_file(a
, false, test_mtime
, test_uid
, test_gid
, 0640) >= 0);
554 assert_se(lstat(a
, &st
) >= 0);
555 assert_se(st
.st_uid
== test_uid
);
556 assert_se(st
.st_gid
== test_gid
);
557 assert_se(S_ISDIR(st
.st_mode
));
558 assert_se((st
.st_mode
& 0777) == 0640);
559 assert_se(timespec_load(&st
.st_mtim
) == test_mtime
);
561 a
= strjoina(p
, "/fifo");
562 assert_se(mkfifo(a
, 0775) >= 0);
563 assert_se(touch_file(a
, false, test_mtime
, test_uid
, test_gid
, 0640) >= 0);
564 assert_se(lstat(a
, &st
) >= 0);
565 assert_se(st
.st_uid
== test_uid
);
566 assert_se(st
.st_gid
== test_gid
);
567 assert_se(S_ISFIFO(st
.st_mode
));
568 assert_se((st
.st_mode
& 0777) == 0640);
569 assert_se(timespec_load(&st
.st_mtim
) == test_mtime
);
571 a
= strjoina(p
, "/sock");
572 assert_se(mknod(a
, 0775 | S_IFSOCK
, 0) >= 0);
573 assert_se(touch_file(a
, false, test_mtime
, test_uid
, test_gid
, 0640) >= 0);
574 assert_se(lstat(a
, &st
) >= 0);
575 assert_se(st
.st_uid
== test_uid
);
576 assert_se(st
.st_gid
== test_gid
);
577 assert_se(S_ISSOCK(st
.st_mode
));
578 assert_se((st
.st_mode
& 0777) == 0640);
579 assert_se(timespec_load(&st
.st_mtim
) == test_mtime
);
581 if (geteuid() == 0) {
582 a
= strjoina(p
, "/cdev");
583 r
= mknod(a
, 0775 | S_IFCHR
, makedev(0, 0));
584 if (r
< 0 && errno
== EPERM
&& detect_container() > 0) {
585 log_notice("Running in unprivileged container? Skipping remaining tests in %s", __func__
);
589 assert_se(touch_file(a
, false, test_mtime
, test_uid
, test_gid
, 0640) >= 0);
590 assert_se(lstat(a
, &st
) >= 0);
591 assert_se(st
.st_uid
== test_uid
);
592 assert_se(st
.st_gid
== test_gid
);
593 assert_se(S_ISCHR(st
.st_mode
));
594 assert_se((st
.st_mode
& 0777) == 0640);
595 assert_se(timespec_load(&st
.st_mtim
) == test_mtime
);
597 a
= strjoina(p
, "/bdev");
598 assert_se(mknod(a
, 0775 | S_IFBLK
, makedev(0, 0)) >= 0);
599 assert_se(touch_file(a
, false, test_mtime
, test_uid
, test_gid
, 0640) >= 0);
600 assert_se(lstat(a
, &st
) >= 0);
601 assert_se(st
.st_uid
== test_uid
);
602 assert_se(st
.st_gid
== test_gid
);
603 assert_se(S_ISBLK(st
.st_mode
));
604 assert_se((st
.st_mode
& 0777) == 0640);
605 assert_se(timespec_load(&st
.st_mtim
) == test_mtime
);
608 a
= strjoina(p
, "/lnk");
609 assert_se(symlink("target", a
) >= 0);
610 assert_se(touch_file(a
, false, test_mtime
, test_uid
, test_gid
, 0640) >= 0);
611 assert_se(lstat(a
, &st
) >= 0);
612 assert_se(st
.st_uid
== test_uid
);
613 assert_se(st
.st_gid
== test_gid
);
614 assert_se(S_ISLNK(st
.st_mode
));
615 assert_se((st
.st_mode
& 0777) == 0640);
616 assert_se(timespec_load(&st
.st_mtim
) == test_mtime
);
619 static void test_unlinkat_deallocate(void) {
620 _cleanup_free_
char *p
= NULL
;
621 _cleanup_close_
int fd
= -1;
624 log_info("/* %s */", __func__
);
626 assert_se(tempfn_random_child(arg_test_dir
, "unlink-deallocation", &p
) >= 0);
628 fd
= open(p
, O_WRONLY
|O_CLOEXEC
|O_CREAT
|O_EXCL
, 0600);
631 assert_se(write(fd
, "hallo\n", 6) == 6);
633 assert_se(fstat(fd
, &st
) >= 0);
634 assert_se(st
.st_size
== 6);
635 assert_se(st
.st_blocks
> 0);
636 assert_se(st
.st_nlink
== 1);
638 assert_se(unlinkat_deallocate(AT_FDCWD
, p
, 0) >= 0);
640 assert_se(fstat(fd
, &st
) >= 0);
641 assert_se(IN_SET(st
.st_size
, 0, 6)); /* depending on whether hole punching worked the size will be 6
642 (it worked) or 0 (we had to resort to truncation) */
643 assert_se(st
.st_blocks
== 0);
644 assert_se(st
.st_nlink
== 0);
647 static void test_fsync_directory_of_file(void) {
648 _cleanup_close_
int fd
= -1;
650 log_info("/* %s */", __func__
);
652 fd
= open_tmpfile_unlinkable(arg_test_dir
, O_RDWR
);
655 assert_se(fsync_directory_of_file(fd
) >= 0);
658 static void test_rename_noreplace(void) {
659 static const char* const table
[] = {
668 _cleanup_(rm_rf_physical_and_freep
) char *z
= NULL
;
669 const char *j
= NULL
;
672 log_info("/* %s */", __func__
);
675 j
= strjoina(arg_test_dir
, "/testXXXXXX");
676 assert_se(mkdtemp_malloc(j
, &z
) >= 0);
678 j
= strjoina(z
, table
[0]);
679 assert_se(touch(j
) >= 0);
681 j
= strjoina(z
, table
[1]);
682 assert_se(mkdir(j
, 0777) >= 0);
684 j
= strjoina(z
, table
[2]);
685 (void) mkfifo(j
, 0777);
687 j
= strjoina(z
, table
[3]);
688 (void) mknod(j
, S_IFSOCK
| 0777, 0);
690 j
= strjoina(z
, table
[4]);
691 (void) symlink("foobar", j
);
693 STRV_FOREACH(a
, (char**) table
) {
694 _cleanup_free_
char *x
= NULL
, *y
= NULL
;
699 if (access(x
, F_OK
) < 0) {
700 assert_se(errno
== ENOENT
);
704 STRV_FOREACH(b
, (char**) table
) {
705 _cleanup_free_
char *w
= NULL
;
710 if (access(w
, F_OK
) < 0) {
711 assert_se(errno
== ENOENT
);
715 assert_se(rename_noreplace(AT_FDCWD
, w
, AT_FDCWD
, y
) == -EEXIST
);
718 y
= strjoin(z
, "/somethingelse");
721 assert_se(rename_noreplace(AT_FDCWD
, x
, AT_FDCWD
, y
) >= 0);
722 assert_se(rename_noreplace(AT_FDCWD
, y
, AT_FDCWD
, x
) >= 0);
726 int main(int argc
, char *argv
[]) {
727 test_setup_logging(LOG_INFO
);
729 arg_test_dir
= argv
[1];
731 test_unlink_noerrno();
732 test_get_files_in_directory();
733 test_readlink_and_make_absolute();
735 test_chase_symlinks();
736 test_dot_or_dot_dot();
739 test_unlinkat_deallocate();
740 test_fsync_directory_of_file();
741 test_rename_noreplace();