src/test/test-path-util.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2013 Zbigniew Jędrzejewski-Szmek
   5
   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.
  10
  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.
  15
  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/>.
  18 ***/
  19
  20 #include <stdio.h>
  21 #include <sys/mount.h>
  22 #include <unistd.h>
  23
  24 #include "alloc-util.h"
  25 #include "fd-util.h"
  26 #include "macro.h"
  27 #include "mount-util.h"
  28 #include "path-util.h"
  29 #include "rm-rf.h"
  30 #include "string-util.h"
  31 #include "strv.h"
  32 #include "util.h"
  33
  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);   \
  39         }
  40
  41 static void test_path(void) {
  42         _cleanup_close_ int fd = -1;
  43
  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);
  49
  50         test_path_compare("/goo/boo", "/goo//boo", 0);
  51         test_path_compare("//goo/boo", "/goo/boo//", 0);
  52
  53         test_path_compare("/", "///", 0);
  54
  55         test_path_compare("/x", "x/", 1);
  56         test_path_compare("x/", "/", -1);
  57
  58         test_path_compare("/x/./y", "x/y", 1);
  59         test_path_compare("x/.y", "x/y", -1);
  60
  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);
  67
  68         assert_se(path_is_absolute("/"));
  69         assert_se(!path_is_absolute("./"));
  70
  71         assert_se(is_path("/dir"));
  72         assert_se(is_path("a/b"));
  73         assert_se(!is_path("."));
  74
  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.../"), ""));
  79
  80         fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY|O_NOCTTY);
  81         assert_se(fd >= 0);
  82         assert_se(fd_is_mount_point(fd, "/", 0) > 0);
  83
  84         {
  85                 char p1[] = "aaa/bbb////ccc";
  86                 char p2[] = "//aaa/.////ccc";
  87                 char p3[] = "/./";
  88
  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), "/./"));
  92         }
  93
  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"));
  99
 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"));
 105 }
 106
 107 static void test_path_equal_root(void) {
 108         /* Nail down the details of how path_equal("/", ...) works. */
 109
 110         assert_se(path_equal("/", "/"));
 111         assert_se(path_equal("/", "//"));
 112
 113         assert_se(!path_equal("/", "/./"));
 114         assert_se(!path_equal("/", "/../"));
 115
 116         assert_se(!path_equal("/", "/.../"));
 117
 118         /* Make sure that files_same works as expected. */
 119
 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);
 124
 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);
 129
 130         assert_se(files_same("/", "/.../", 0) == -ENOENT);
 131         assert_se(files_same("/", "/.../", AT_SYMLINK_NOFOLLOW) == -ENOENT);
 132
 133         /* The same for path_equal_or_files_same. */
 134
 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));
 139
 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));
 144
 145         assert_se(!path_equal_or_files_same("/", "/.../", 0));
 146         assert_se(!path_equal_or_files_same("/", "/.../", AT_SYMLINK_NOFOLLOW));
 147 }
 148
 149 static void test_find_binary(const char *self) {
 150         char *p;
 151
 152         assert_se(find_binary("/bin/sh", &p) == 0);
 153         puts(p);
 154         assert_se(path_equal(p, "/bin/sh"));
 155         free(p);
 156
 157         assert_se(find_binary(self, &p) == 0);
 158         puts(p);
 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));
 162         free(p);
 163
 164         assert_se(find_binary("sh", &p) == 0);
 165         puts(p);
 166         assert_se(endswith(p, "/sh"));
 167         assert_se(path_is_absolute(p));
 168         free(p);
 169
 170         assert_se(find_binary("xxxx-xxxx", &p) == -ENOENT);
 171         assert_se(find_binary("/some/dir/xxxx-xxxx", &p) == -ENOENT);
 172 }
 173
 174 static void test_prefixes(void) {
 175         static const char* values[] = { "/a/b/c/d", "/a/b/c", "/a/b", "/a", "", NULL};
 176         unsigned i;
 177         char s[PATH_MAX];
 178         bool b;
 179
 180         i = 0;
 181         PATH_FOREACH_PREFIX_MORE(s, "/a/b/c/d") {
 182                 log_error("---%s---", s);
 183                 assert_se(streq(s, values[i++]));
 184         }
 185         assert_se(values[i] == NULL);
 186
 187         i = 1;
 188         PATH_FOREACH_PREFIX(s, "/a/b/c/d") {
 189                 log_error("---%s---", s);
 190                 assert_se(streq(s, values[i++]));
 191         }
 192         assert_se(values[i] == NULL);
 193
 194         i = 0;
 195         PATH_FOREACH_PREFIX_MORE(s, "////a////b////c///d///////")
 196                 assert_se(streq(s, values[i++]));
 197         assert_se(values[i] == NULL);
 198
 199         i = 1;
 200         PATH_FOREACH_PREFIX(s, "////a////b////c///d///////")
 201                 assert_se(streq(s, values[i++]));
 202         assert_se(values[i] == NULL);
 203
 204         PATH_FOREACH_PREFIX(s, "////")
 205                 assert_not_reached("Wut?");
 206
 207         b = false;
 208         PATH_FOREACH_PREFIX_MORE(s, "////") {
 209                 assert_se(!b);
 210                 assert_se(streq(s, ""));
 211                 b = true;
 212         }
 213         assert_se(b);
 214
 215         PATH_FOREACH_PREFIX(s, "")
 216                 assert_not_reached("wut?");
 217
 218         b = false;
 219         PATH_FOREACH_PREFIX_MORE(s, "") {
 220                 assert_se(!b);
 221                 assert_se(streq(s, ""));
 222                 b = true;
 223         }
 224 }
 225
 226 static void test_path_join(void) {
 227
 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));   \
 232         }
 233
 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/");
 239
 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, "/");
 245 }
 246
 247 #if 0 /// UNNEEDED by elogind
 248 static void test_fsck_exists(void) {
 249         /* Ensure we use a sane default for PATH. */
 250         unsetenv("PATH");
 251
 252         /* fsck.minix is provided by util-linux and will probably exist. */
 253         assert_se(fsck_exists("minix") == 1);
 254
 255         assert_se(fsck_exists("AbCdE") == 0);
 256         assert_se(fsck_exists("/../bin/") == 0);
 257 }
 258
 259 static void test_make_relative(void) {
 260         char *result;
 261
 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);
 264
 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));             \
 269         }
 270
 271         test("/", "/", ".");
 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");
 278 }
 279 #endif // 0
 280
 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;
 285         char **d;
 286
 287         assert_se(mkdtemp(tmp_dir) != NULL);
 288
 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);
 293                 assert_se(p);
 294                 assert_se(strv_push(&absolute_dirs, p) == 0);
 295         }
 296
 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);
 300
 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"));
 305
 306         assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
 307 }
 308
 309 static void test_path_startswith(void) {
 310         const char *p;
 311
 312         p = path_startswith("/foo/bar/barfoo/", "/foo");
 313         assert_se(streq_ptr(p, "bar/barfoo/"));
 314
 315         p = path_startswith("/foo/bar/barfoo/", "/foo/");
 316         assert_se(streq_ptr(p, "bar/barfoo/"));
 317
 318         p = path_startswith("/foo/bar/barfoo/", "/");
 319         assert_se(streq_ptr(p, "foo/bar/barfoo/"));
 320
 321         p = path_startswith("/foo/bar/barfoo/", "////");
 322         assert_se(streq_ptr(p, "foo/bar/barfoo/"));
 323
 324         p = path_startswith("/foo/bar/barfoo/", "/foo//bar/////barfoo///");
 325         assert_se(streq_ptr(p, ""));
 326
 327         p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo////");
 328         assert_se(streq_ptr(p, ""));
 329
 330         p = path_startswith("/foo/bar/barfoo/", "/foo/bar///barfoo/");
 331         assert_se(streq_ptr(p, ""));
 332
 333         p = path_startswith("/foo/bar/barfoo/", "/foo////bar/barfoo/");
 334         assert_se(streq_ptr(p, ""));
 335
 336         p = path_startswith("/foo/bar/barfoo/", "////foo/bar/barfoo/");
 337         assert_se(streq_ptr(p, ""));
 338
 339         p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo");
 340         assert_se(streq_ptr(p, ""));
 341
 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/"));
 347 }
 348
 349 static void test_prefix_root_one(const char *r, const char *p, const char *expected) {
 350         _cleanup_free_ char *s = NULL;
 351         const char *t;
 352
 353         assert_se(s = prefix_root(r, p));
 354         assert_se(streq_ptr(s, expected));
 355
 356         t = prefix_roota(r, p);
 357         assert_se(t);
 358         assert_se(streq_ptr(t, expected));
 359 }
 360
 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");
 368
 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");
 375 }
 376
 377 static void test_path_is_mount_point(void) {
 378         int fd;
 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;
 383
 384         assert_se(path_is_mount_point("/", NULL, AT_SYMLINK_FOLLOW) > 0);
 385         assert_se(path_is_mount_point("/", NULL, 0) > 0);
 386
 387         assert_se(path_is_mount_point("/proc", NULL, AT_SYMLINK_FOLLOW) > 0);
 388         assert_se(path_is_mount_point("/proc", NULL, 0) > 0);
 389
 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);
 392
 393         assert_se(path_is_mount_point("/sys", NULL, AT_SYMLINK_FOLLOW) > 0);
 394         assert_se(path_is_mount_point("/sys", NULL, 0) > 0);
 395
 396         /* we'll create a hierarchy of different kinds of dir/file/link
 397          * layouts:
 398          *
 399          * <tmp>/file1, <tmp>/file2
 400          * <tmp>/link1 -> file1, <tmp>/link2 -> file2
 401          * <tmp>/dir1/
 402          * <tmp>/dir1/file
 403          * <tmp>/dirlink1 -> dir1
 404          * <tmp>/dirlink1file -> dirlink1/file
 405          * <tmp>/dir2/
 406          * <tmp>/dir2/file
 407          */
 408
 409         /* file mountpoints */
 410         assert_se(mkdtemp(tmp_dir) != NULL);
 411         file1 = path_join(NULL, tmp_dir, "file1");
 412         assert_se(file1);
 413         file2 = path_join(NULL, tmp_dir, "file2");
 414         assert_se(file2);
 415         fd = open(file1, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
 416         assert_se(fd > 0);
 417         close(fd);
 418         fd = open(file2, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
 419         assert_se(fd > 0);
 420         close(fd);
 421         link1 = path_join(NULL, tmp_dir, "link1");
 422         assert_se(link1);
 423         assert_se(symlink("file1", link1) == 0);
 424         link2 = path_join(NULL, tmp_dir, "link2");
 425         assert_se(link1);
 426         assert_se(symlink("file2", link2) == 0);
 427
 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);
 432
 433         /* directory mountpoints */
 434         dir1 = path_join(NULL, tmp_dir, "dir1");
 435         assert_se(dir1);
 436         assert_se(mkdir(dir1, 0755) == 0);
 437         dirlink1 = path_join(NULL, tmp_dir, "dirlink1");
 438         assert_se(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");
 444         assert_se(dir2);
 445         assert_se(mkdir(dir2, 0755) == 0);
 446
 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);
 451
 452         /* file in subdirectory mountpoints */
 453         dir1file = path_join(NULL, dir1, "file");
 454         assert_se(dir1file);
 455         fd = open(dir1file, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
 456         assert_se(fd > 0);
 457         close(fd);
 458
 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);
 463
 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;
 467
 468                 /* files */
 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);
 474
 475                 assert_se(umount(file2) == 0);
 476
 477                 assert_se(rf == 1);
 478                 assert_se(rt == 1);
 479                 assert_se(rlf == 0);
 480                 assert_se(rlt == 1);
 481
 482                 /* dirs */
 483                 dir2file = path_join(NULL, dir2, "file");
 484                 assert_se(dir2file);
 485                 fd = open(dir2file, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
 486                 assert_se(fd > 0);
 487                 close(fd);
 488
 489                 assert_se(mount(dir2, dir1, NULL, MS_BIND, NULL) >= 0);
 490
 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);
 498
 499                 assert_se(umount(dir1) == 0);
 500
 501                 assert_se(rf == 1);
 502                 assert_se(rt == 1);
 503                 assert_se(rlf == 0);
 504                 assert_se(rlt == 1);
 505                 assert_se(rl1f == 0);
 506                 assert_se(rl1t == 0);
 507
 508         } else
 509                 printf("Skipping bind mount file test: %m\n");
 510
 511         assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
 512 }
 513
 514 static void test_file_in_same_dir(void) {
 515         char *t;
 516
 517         t = file_in_same_dir("/", "a");
 518         assert_se(streq(t, "/a"));
 519         free(t);
 520
 521         t = file_in_same_dir("/", "/a");
 522         assert_se(streq(t, "/a"));
 523         free(t);
 524
 525         t = file_in_same_dir("", "a");
 526         assert_se(streq(t, "a"));
 527         free(t);
 528
 529         t = file_in_same_dir("a/", "a");
 530         assert_se(streq(t, "a/a"));
 531         free(t);
 532
 533         t = file_in_same_dir("bar/foo", "bar");
 534         assert_se(streq(t, "bar/bar"));
 535         free(t);
 536 }
 537
 538 static void test_filename_is_valid(void) {
 539         char foo[FILENAME_MAX+2];
 540         int i;
 541
 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(".."));
 547
 548         for (i=0; i<FILENAME_MAX+1; i++)
 549                 foo[i] = 'a';
 550         foo[FILENAME_MAX+1] = '\0';
 551
 552         assert_se(!filename_is_valid(foo));
 553
 554         assert_se(filename_is_valid("foo_bar-333"));
 555         assert_se(filename_is_valid("o.o"));
 556 }
 557
 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."));
 562
 563         assert_se(hidden_or_backup_file("backup~"));
 564         assert_se(hidden_or_backup_file(".backup~"));
 565
 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"));
 569
 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"));
 574
 575         assert_se(!hidden_or_backup_file("test.rpmnew."));
 576         assert_se(!hidden_or_backup_file("test.dpkg-old.foo"));
 577 }
 578
 579 #if 0 /// UNNEEDED by elogind
 580 static void test_systemd_installation_has_version(const char *path) {
 581         int r;
 582         const unsigned versions[] = {0, 231, atoi(PACKAGE_VERSION), 999};
 583         unsigned i;
 584
 585         for (i = 0; i < ELEMENTSOF(versions); i++) {
 586                 r = systemd_installation_has_version(path, versions[i]);
 587                 assert_se(r >= 0);
 588                 log_info("%s has systemd >= %u: %s",
 589                          path ?: "Current installation", versions[i], yes_no(r));
 590         }
 591 }
 592 #endif // 0
 593
 594 int main(int argc, char **argv) {
 595         log_set_max_level(LOG_DEBUG);
 596         log_parse_environment();
 597         log_open();
 598
 599         test_path();
 600         test_path_equal_root();
 601         test_find_binary(argv[0]);
 602         test_prefixes();
 603         test_path_join();
 604 #if 0 /// UNNEEDED by elogind
 605         test_fsck_exists();
 606         test_make_relative();
 607 #endif // 0
 608         test_strv_resolve();
 609         test_path_startswith();
 610         test_prefix_root();
 611         test_path_is_mount_point();
 612         test_file_in_same_dir();
 613         test_filename_is_valid();
 614         test_hidden_or_backup_file();
 615
 616 #if 0 /// UNNEEDED by elogind
 617         test_systemd_installation_has_version(argv[1]); /* NULL is OK */
 618 #endif // 0
 619
 620         return 0;
 621 }