src/test/test-path-util.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2
   3 #include <stdio.h>
   4 #include <unistd.h>
   5
   6 #include "alloc-util.h"
   7 #include "exec-util.h"
   8 #include "fd-util.h"
   9 #include "macro.h"
  10 #include "path-util.h"
  11 #include "process-util.h"
  12 #include "rm-rf.h"
  13 #include "stat-util.h"
  14 #include "string-util.h"
  15 #include "strv.h"
  16 #include "tests.h"
  17 #include "util.h"
  18
  19 static void test_print_paths(void) {
  20         log_info("DEFAULT_PATH=%s", DEFAULT_PATH);
  21         log_info("DEFAULT_USER_PATH=%s", DEFAULT_USER_PATH);
  22 }
  23
  24 static void test_path(void) {
  25         log_info("/* %s */", __func__);
  26
  27         assert_se(path_is_absolute("/"));
  28         assert_se(!path_is_absolute("./"));
  29
  30         assert_se(is_path("/dir"));
  31         assert_se(is_path("a/b"));
  32         assert_se(!is_path("."));
  33
  34         assert_se(streq(basename("./aa/bb/../file.da."), "file.da."));
  35         assert_se(streq(basename("/aa///.file"), ".file"));
  36         assert_se(streq(basename("/aa///file..."), "file..."));
  37         assert_se(streq(basename("file.../"), ""));
  38
  39         assert_se(PATH_IN_SET("/bin", "/", "/bin", "/foo"));
  40         assert_se(PATH_IN_SET("/bin", "/bin"));
  41         assert_se(PATH_IN_SET("/bin", "/foo/bar", "/bin"));
  42         assert_se(PATH_IN_SET("/", "/", "/", "/foo/bar"));
  43         assert_se(!PATH_IN_SET("/", "/abc", "/def"));
  44
  45         assert_se(path_equal_ptr(NULL, NULL));
  46         assert_se(path_equal_ptr("/a", "/a"));
  47         assert_se(!path_equal_ptr("/a", "/b"));
  48         assert_se(!path_equal_ptr("/a", NULL));
  49         assert_se(!path_equal_ptr(NULL, "/a"));
  50
  51         assert_se(path_equal_filename("/a/c", "/b/c"));
  52         assert_se(path_equal_filename("/a", "/a"));
  53         assert_se(!path_equal_filename("/a/b", "/a/c"));
  54         assert_se(!path_equal_filename("/b", "/c"));
  55 }
  56
  57 static void test_path_simplify_one(const char *in, const char *out) {
  58         char *p;
  59
  60         p = strdupa(in);
  61         path_simplify(p);
  62         log_debug("/* test_path_simplify(%s) → %s (expected: %s) */", in, p, out);
  63         assert_se(streq(p, out));
  64 }
  65
  66 static void test_path_simplify(void) {
  67         _cleanup_free_ char *hoge = NULL, *hoge_out = NULL;
  68         char foo[NAME_MAX * 2];
  69
  70         log_info("/* %s */", __func__);
  71
  72         test_path_simplify_one("", "");
  73         test_path_simplify_one("aaa/bbb////ccc", "aaa/bbb/ccc");
  74         test_path_simplify_one("//aaa/.////ccc", "/aaa/ccc");
  75         test_path_simplify_one("///", "/");
  76         test_path_simplify_one("///.//", "/");
  77         test_path_simplify_one("///.//.///", "/");
  78         test_path_simplify_one("////.././///../.", "/../..");
  79         test_path_simplify_one(".", ".");
  80         test_path_simplify_one("./", ".");
  81         test_path_simplify_one(".///.//./.", ".");
  82         test_path_simplify_one(".///.//././/", ".");
  83         test_path_simplify_one("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/.",
  84                                "/aaa/.bbb/../c./d.dd/..eeee");
  85         test_path_simplify_one("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
  86                                "/aaa/.bbb/../c./d.dd/..eeee/..");
  87         test_path_simplify_one(".//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
  88                                "aaa/.bbb/../c./d.dd/..eeee/..");
  89         test_path_simplify_one("..//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
  90                                "../aaa/.bbb/../c./d.dd/..eeee/..");
  91
  92         memset(foo, 'a', sizeof(foo) -1);
  93         char_array_0(foo);
  94
  95         test_path_simplify_one(foo, foo);
  96
  97         hoge = strjoin("/", foo);
  98         assert_se(hoge);
  99         test_path_simplify_one(hoge, hoge);
 100         hoge = mfree(hoge);
 101
 102         hoge = strjoin("a////.//././//./b///././/./c/////././//./", foo, "//.//////d/e/.//f/");
 103         assert_se(hoge);
 104
 105         hoge_out = strjoin("a/b/c/", foo, "//.//////d/e/.//f/");
 106         assert_se(hoge_out);
 107
 108         test_path_simplify_one(hoge, hoge_out);
 109 }
 110
 111 static void test_path_compare_one(const char *a, const char *b, int expected) {
 112         int r;
 113
 114         assert_se(path_compare(a, a) == 0);
 115         assert_se(path_compare(b, b) == 0);
 116
 117         r = path_compare(a, b);
 118         assert_se((r > 0) == (expected > 0) && (r < 0) == (expected < 0));
 119         r = path_compare(b, a);
 120         assert_se((r < 0) == (expected > 0) && (r > 0) == (expected < 0));
 121
 122         assert_se(path_equal(a, a) == 1);
 123         assert_se(path_equal(b, b) == 1);
 124         assert_se(path_equal(a, b) == (expected == 0));
 125         assert_se(path_equal(b, a) == (expected == 0));
 126 }
 127
 128 static void test_path_compare(void) {
 129         log_info("/* %s */", __func__);
 130
 131         test_path_compare_one("/goo", "/goo", 0);
 132         test_path_compare_one("/goo", "/goo", 0);
 133         test_path_compare_one("//goo", "/goo", 0);
 134         test_path_compare_one("//goo/////", "/goo", 0);
 135         test_path_compare_one("goo/////", "goo", 0);
 136         test_path_compare_one("/goo/boo", "/goo//boo", 0);
 137         test_path_compare_one("//goo/boo", "/goo/boo//", 0);
 138         test_path_compare_one("//goo/././//./boo//././//", "/goo/boo//.", 0);
 139         test_path_compare_one("/.", "//.///", 0);
 140         test_path_compare_one("/x", "x/", 1);
 141         test_path_compare_one("x/", "/", -1);
 142         test_path_compare_one("/x/./y", "x/y", 1);
 143         test_path_compare_one("/x/./y", "/x/y", 0);
 144         test_path_compare_one("/x/./././y", "/x/y/././.", 0);
 145         test_path_compare_one("./x/./././y", "./x/y/././.", 0);
 146         test_path_compare_one(".", "./.", 0);
 147         test_path_compare_one(".", "././.", 0);
 148         test_path_compare_one("./..", ".", 1);
 149         test_path_compare_one("x/.y", "x/y", -1);
 150         test_path_compare_one("foo", "/foo", -1);
 151         test_path_compare_one("/foo", "/foo/bar", -1);
 152         test_path_compare_one("/foo/aaa", "/foo/b", -1);
 153         test_path_compare_one("/foo/aaa", "/foo/b/a", -1);
 154         test_path_compare_one("/foo/a", "/foo/aaa", -1);
 155         test_path_compare_one("/foo/a/b", "/foo/aaa", -1);
 156 }
 157
 158 static void test_path_equal_root(void) {
 159         /* Nail down the details of how path_equal("/", ...) works. */
 160
 161         log_info("/* %s */", __func__);
 162
 163         assert_se(path_equal("/", "/"));
 164         assert_se(path_equal("/", "//"));
 165
 166         assert_se(path_equal("/", "/./"));
 167         assert_se(!path_equal("/", "/../"));
 168
 169         assert_se(!path_equal("/", "/.../"));
 170
 171         /* Make sure that files_same works as expected. */
 172
 173         assert_se(files_same("/", "/", 0) > 0);
 174         assert_se(files_same("/", "/", AT_SYMLINK_NOFOLLOW) > 0);
 175         assert_se(files_same("/", "//", 0) > 0);
 176         assert_se(files_same("/", "//", AT_SYMLINK_NOFOLLOW) > 0);
 177
 178         assert_se(files_same("/", "/./", 0) > 0);
 179         assert_se(files_same("/", "/./", AT_SYMLINK_NOFOLLOW) > 0);
 180         assert_se(files_same("/", "/../", 0) > 0);
 181         assert_se(files_same("/", "/../", AT_SYMLINK_NOFOLLOW) > 0);
 182
 183         assert_se(files_same("/", "/.../", 0) == -ENOENT);
 184         assert_se(files_same("/", "/.../", AT_SYMLINK_NOFOLLOW) == -ENOENT);
 185
 186         /* The same for path_equal_or_files_same. */
 187
 188         assert_se(path_equal_or_files_same("/", "/", 0));
 189         assert_se(path_equal_or_files_same("/", "/", AT_SYMLINK_NOFOLLOW));
 190         assert_se(path_equal_or_files_same("/", "//", 0));
 191         assert_se(path_equal_or_files_same("/", "//", AT_SYMLINK_NOFOLLOW));
 192
 193         assert_se(path_equal_or_files_same("/", "/./", 0));
 194         assert_se(path_equal_or_files_same("/", "/./", AT_SYMLINK_NOFOLLOW));
 195         assert_se(path_equal_or_files_same("/", "/../", 0));
 196         assert_se(path_equal_or_files_same("/", "/../", AT_SYMLINK_NOFOLLOW));
 197
 198         assert_se(!path_equal_or_files_same("/", "/.../", 0));
 199         assert_se(!path_equal_or_files_same("/", "/.../", AT_SYMLINK_NOFOLLOW));
 200 }
 201
 202 static void test_find_executable_full(void) {
 203         char *p;
 204
 205         log_info("/* %s */", __func__);
 206
 207         assert_se(find_executable_full("sh", true, &p, NULL) == 0);
 208         puts(p);
 209         assert_se(streq(basename(p), "sh"));
 210         free(p);
 211
 212         assert_se(find_executable_full("sh", false, &p, NULL) == 0);
 213         puts(p);
 214         assert_se(streq(basename(p), "sh"));
 215         free(p);
 216
 217         _cleanup_free_ char *oldpath = NULL;
 218         p = getenv("PATH");
 219         if (p)
 220                 assert_se(oldpath = strdup(p));
 221
 222         assert_se(unsetenv("PATH") == 0);
 223
 224         assert_se(find_executable_full("sh", true, &p, NULL) == 0);
 225         puts(p);
 226         assert_se(streq(basename(p), "sh"));
 227         free(p);
 228
 229         assert_se(find_executable_full("sh", false, &p, NULL) == 0);
 230         puts(p);
 231         assert_se(streq(basename(p), "sh"));
 232         free(p);
 233
 234         if (oldpath)
 235                 assert_se(setenv("PATH", oldpath, true) >= 0);
 236 }
 237
 238 static void test_find_executable(const char *self) {
 239         char *p;
 240
 241         log_info("/* %s */", __func__);
 242
 243         assert_se(find_executable("/bin/sh", &p) == 0);
 244         puts(p);
 245         assert_se(path_equal(p, "/bin/sh"));
 246         free(p);
 247
 248         assert_se(find_executable(self, &p) == 0);
 249         puts(p);
 250         assert_se(endswith(p, "/test-path-util"));
 251         assert_se(path_is_absolute(p));
 252         free(p);
 253
 254         assert_se(find_executable("sh", &p) == 0);
 255         puts(p);
 256         assert_se(endswith(p, "/sh"));
 257         assert_se(path_is_absolute(p));
 258         free(p);
 259
 260         assert_se(find_executable("/bin/touch", &p) == 0);
 261         assert_se(streq(p, "/bin/touch"));
 262         free(p);
 263
 264         assert_se(find_executable("touch", &p) == 0);
 265         assert_se(path_is_absolute(p));
 266         assert_se(streq(basename(p), "touch"));
 267         free(p);
 268
 269         assert_se(find_executable("xxxx-xxxx", &p) == -ENOENT);
 270         assert_se(find_executable("/some/dir/xxxx-xxxx", &p) == -ENOENT);
 271         assert_se(find_executable("/proc/filesystems", &p) == -EACCES);
 272 }
 273
 274 static void test_find_executable_exec_one(const char *path) {
 275         _cleanup_free_ char *t = NULL;
 276         _cleanup_close_ int fd = -1;
 277         pid_t pid;
 278         int r;
 279
 280         r = find_executable_full(path, false, &t, &fd);
 281
 282         log_info_errno(r, "%s: %s → %s: %d/%m", __func__, path, t ?: "-", fd);
 283
 284         assert_se(fd > STDERR_FILENO);
 285         assert_se(path_is_absolute(t));
 286         if (path_is_absolute(path))
 287                 assert_se(streq(t, path));
 288
 289         pid = fork();
 290         assert_se(pid >= 0);
 291         if (pid == 0) {
 292                 r = fexecve_or_execve(fd, t, STRV_MAKE(t, "--version"), STRV_MAKE(NULL));
 293                 log_error_errno(r, "[f]execve: %m");
 294                 _exit(EXIT_FAILURE);
 295         }
 296
 297         assert_se(wait_for_terminate_and_check(t, pid, WAIT_LOG) == 0);
 298 }
 299
 300 static void test_find_executable_exec(void) {
 301         log_info("/* %s */", __func__);
 302
 303         test_find_executable_exec_one("touch");
 304         test_find_executable_exec_one("/bin/touch");
 305
 306         _cleanup_free_ char *script = NULL;
 307         assert_se(get_testdata_dir("test-path-util/script.sh", &script) >= 0);
 308         test_find_executable_exec_one(script);
 309 }
 310
 311 static void test_prefixes(void) {
 312         static const char* const values[] = {
 313                 "/a/b/c/d",
 314                 "/a/b/c",
 315                 "/a/b",
 316                 "/a",
 317                 "",
 318                 NULL
 319         };
 320         unsigned i;
 321         char s[PATH_MAX];
 322         bool b;
 323
 324         log_info("/* %s */", __func__);
 325
 326         i = 0;
 327         PATH_FOREACH_PREFIX_MORE(s, "/a/b/c/d") {
 328                 log_error("---%s---", s);
 329                 assert_se(streq(s, values[i++]));
 330         }
 331         assert_se(values[i] == NULL);
 332
 333         i = 1;
 334         PATH_FOREACH_PREFIX(s, "/a/b/c/d") {
 335                 log_error("---%s---", s);
 336                 assert_se(streq(s, values[i++]));
 337         }
 338         assert_se(values[i] == NULL);
 339
 340         i = 0;
 341         PATH_FOREACH_PREFIX_MORE(s, "////a////b////c///d///////")
 342                 assert_se(streq(s, values[i++]));
 343         assert_se(values[i] == NULL);
 344
 345         i = 1;
 346         PATH_FOREACH_PREFIX(s, "////a////b////c///d///////")
 347                 assert_se(streq(s, values[i++]));
 348         assert_se(values[i] == NULL);
 349
 350         PATH_FOREACH_PREFIX(s, "////")
 351                 assert_not_reached("Wut?");
 352
 353         b = false;
 354         PATH_FOREACH_PREFIX_MORE(s, "////") {
 355                 assert_se(!b);
 356                 assert_se(streq(s, ""));
 357                 b = true;
 358         }
 359         assert_se(b);
 360
 361         PATH_FOREACH_PREFIX(s, "")
 362                 assert_not_reached("wut?");
 363
 364         b = false;
 365         PATH_FOREACH_PREFIX_MORE(s, "") {
 366                 assert_se(!b);
 367                 assert_se(streq(s, ""));
 368                 b = true;
 369         }
 370 }
 371
 372 static void test_path_join(void) {
 373         log_info("/* %s */", __func__);
 374
 375 #define test_join(expected, ...) {        \
 376                 _cleanup_free_ char *z = NULL;   \
 377                 z = path_join(__VA_ARGS__); \
 378                 log_debug("got \"%s\", expected \"%s\"", z, expected); \
 379                 assert_se(streq(z, expected));   \
 380         }
 381
 382         test_join("/root/a/b/c", "/root", "/a/b", "/c");
 383         test_join("/root/a/b/c", "/root", "a/b", "c");
 384         test_join("/root/a/b/c", "/root", "/a/b", "c");
 385         test_join("/root/c",     "/root", "/", "c");
 386         test_join("/root/",      "/root", "/", NULL);
 387
 388         test_join("/a/b/c", "", "/a/b", "/c");
 389         test_join("a/b/c",  "", "a/b", "c");
 390         test_join("/a/b/c", "", "/a/b", "c");
 391         test_join("/c",     "", "/", "c");
 392         test_join("/",      "", "/", NULL);
 393
 394         test_join("/a/b/c", NULL, "/a/b", "/c");
 395         test_join("a/b/c",  NULL, "a/b", "c");
 396         test_join("/a/b/c", NULL, "/a/b", "c");
 397         test_join("/c",     NULL, "/", "c");
 398         test_join("/",      NULL, "/", NULL);
 399
 400         test_join("", "", NULL);
 401         test_join("", NULL, "");
 402         test_join("", NULL, NULL);
 403
 404         test_join("foo/bar", "foo", "bar");
 405         test_join("foo/bar", "", "foo", "bar");
 406         test_join("foo/bar", NULL, "foo", NULL, "bar");
 407         test_join("foo/bar", "", "foo", "", "bar", "");
 408         test_join("foo/bar", "", "", "", "", "foo", "", "", "", "bar", "", "", "");
 409
 410         test_join("//foo///bar//",         "", "/", "", "/foo/", "", "/", "", "/bar/", "", "/", "");
 411         test_join("/foo/bar/",             "/", "foo", "/", "bar", "/");
 412         test_join("foo/bar/baz",           "foo", "bar", "baz");
 413         test_join("foo/bar/baz",           "foo/", "bar", "/baz");
 414         test_join("foo//bar//baz",         "foo/", "/bar/", "/baz");
 415         test_join("//foo////bar////baz//", "//foo/", "///bar/", "///baz//");
 416 }
 417
 418 static void test_path_extend(void) {
 419         _cleanup_free_ char *p = NULL;
 420
 421         log_info("/* %s */", __func__);
 422
 423         assert_se(path_extend(&p, "foo", "bar", "baz") == p);
 424         assert_se(streq(p, "foo/bar/baz"));
 425
 426         assert_se(path_extend(&p, "foo", "bar", "baz") == p);
 427         assert_se(streq(p, "foo/bar/baz/foo/bar/baz"));
 428
 429         p = mfree(p);
 430         assert_se(path_extend(&p, "foo") == p);
 431         assert_se(streq(p, "foo"));
 432
 433         assert_se(path_extend(&p, "/foo") == p);
 434         assert_se(streq(p, "foo/foo"));
 435         assert_se(path_extend(&p, "/waaaah/wahhh//") == p);
 436         assert_se(streq(p, "foo/foo/waaaah/wahhh//")); /* path_extend() does not drop redundant slashes */
 437         assert_se(path_extend(&p, "/aaa/bbb/") == p);
 438         assert_se(streq(p, "foo/foo/waaaah/wahhh///aaa/bbb/")); /* but not add an extra slash */
 439
 440         assert_se(free_and_strdup(&p, "/") >= 0);
 441         assert_se(path_extend(&p, "foo") == p);
 442         assert_se(streq(p, "/foo"));
 443 }
 444
 445 static void test_fsck_exists(void) {
 446         log_info("/* %s */", __func__);
 447
 448         /* Ensure we use a sane default for PATH. */
 449         assert_se(unsetenv("PATH") == 0);
 450
 451         /* fsck.minix is provided by util-linux and will probably exist. */
 452         assert_se(fsck_exists("minix") == 1);
 453
 454         assert_se(fsck_exists("AbCdE") == 0);
 455         assert_se(fsck_exists("/../bin/") == 0);
 456 }
 457
 458 static void test_path_make_relative_one(const char *from, const char *to, const char *expected) {
 459         _cleanup_free_ char *z = NULL;
 460         int r;
 461
 462         log_info("/* %s(%s, %s) */", __func__, from, to);
 463
 464         r = path_make_relative(from, to, &z);
 465         assert_se((r >= 0) == !!expected);
 466         assert_se(streq_ptr(z, expected));
 467 }
 468
 469 static void test_make_relative(void) {
 470         log_info("/* %s */", __func__);
 471
 472         test_path_make_relative_one("some/relative/path", "/some/path", NULL);
 473         test_path_make_relative_one("/some/path", "some/relative/path", NULL);
 474         test_path_make_relative_one("/some/dotdot/../path", "/some/path", NULL);
 475
 476         test_path_make_relative_one("/", "/", ".");
 477         test_path_make_relative_one("/", "/some/path", "some/path");
 478         test_path_make_relative_one("/some/path", "/some/path", ".");
 479         test_path_make_relative_one("/some/path", "/some/path/in/subdir", "in/subdir");
 480         test_path_make_relative_one("/some/path", "/", "../..");
 481         test_path_make_relative_one("/some/path", "/some/other/path", "../other/path");
 482         test_path_make_relative_one("/some/path/./dot", "/some/further/path", "../../further/path");
 483         test_path_make_relative_one("//extra.//.//./.slashes//./won't////fo.ol///anybody//", "/././/extra././/.slashes////ar.e/.just/././.fine///", "../../../ar.e/.just/.fine");
 484 }
 485
 486 static void test_strv_resolve(void) {
 487         char tmp_dir[] = "/tmp/test-path-util-XXXXXX";
 488         _cleanup_strv_free_ char **search_dirs = NULL;
 489         _cleanup_strv_free_ char **absolute_dirs = NULL;
 490         char **d;
 491
 492         assert_se(mkdtemp(tmp_dir) != NULL);
 493
 494         search_dirs = strv_new("/dir1", "/dir2", "/dir3");
 495         assert_se(search_dirs);
 496         STRV_FOREACH(d, search_dirs) {
 497                 char *p = path_join(tmp_dir, *d);
 498                 assert_se(p);
 499                 assert_se(strv_push(&absolute_dirs, p) == 0);
 500         }
 501
 502         assert_se(mkdir(absolute_dirs[0], 0700) == 0);
 503         assert_se(mkdir(absolute_dirs[1], 0700) == 0);
 504         assert_se(symlink("dir2", absolute_dirs[2]) == 0);
 505
 506         path_strv_resolve(search_dirs, tmp_dir);
 507         assert_se(streq(search_dirs[0], "/dir1"));
 508         assert_se(streq(search_dirs[1], "/dir2"));
 509         assert_se(streq(search_dirs[2], "/dir2"));
 510
 511         assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
 512 }
 513
 514 static void test_path_startswith_one(const char *path, const char *prefix, const char *skipped, const char *expected) {
 515         const char *p, *q;
 516
 517         log_debug("/* %s(%s, %s) */", __func__, path, prefix);
 518
 519         p = path_startswith(path, prefix);
 520         assert_se(streq_ptr(p, expected));
 521         if (p) {
 522                 q = strjoina(skipped, p);
 523                 assert_se(streq(q, path));
 524                 assert_se(p == path + strlen(skipped));
 525         }
 526 }
 527
 528 static void test_path_startswith(void) {
 529         log_info("/* %s */", __func__);
 530
 531         test_path_startswith_one("/foo/bar/barfoo/", "/foo", "/foo/", "bar/barfoo/");
 532         test_path_startswith_one("/foo/bar/barfoo/", "/foo/", "/foo/", "bar/barfoo/");
 533         test_path_startswith_one("/foo/bar/barfoo/", "/", "/", "foo/bar/barfoo/");
 534         test_path_startswith_one("/foo/bar/barfoo/", "////", "/",  "foo/bar/barfoo/");
 535         test_path_startswith_one("/foo/bar/barfoo/", "/foo//bar/////barfoo///", "/foo/bar/barfoo/", "");
 536         test_path_startswith_one("/foo/bar/barfoo/", "/foo/bar/barfoo////", "/foo/bar/barfoo/", "");
 537         test_path_startswith_one("/foo/bar/barfoo/", "/foo/bar///barfoo/", "/foo/bar/barfoo/", "");
 538         test_path_startswith_one("/foo/bar/barfoo/", "/foo////bar/barfoo/", "/foo/bar/barfoo/", "");
 539         test_path_startswith_one("/foo/bar/barfoo/", "////foo/bar/barfoo/", "/foo/bar/barfoo/", "");
 540         test_path_startswith_one("/foo/bar/barfoo/", "/foo/bar/barfoo", "/foo/bar/barfoo/", "");
 541
 542         test_path_startswith_one("/foo/bar/barfoo/", "/foo/bar/barfooa/", NULL, NULL);
 543         test_path_startswith_one("/foo/bar/barfoo/", "/foo/bar/barfooa", NULL, NULL);
 544         test_path_startswith_one("/foo/bar/barfoo/", "", NULL, NULL);
 545         test_path_startswith_one("/foo/bar/barfoo/", "/bar/foo", NULL, NULL);
 546         test_path_startswith_one("/foo/bar/barfoo/", "/f/b/b/", NULL, NULL);
 547         test_path_startswith_one("/foo/bar/barfoo/", "/foo/bar/barfo", NULL, NULL);
 548         test_path_startswith_one("/foo/bar/barfoo/", "/foo/bar/bar", NULL, NULL);
 549         test_path_startswith_one("/foo/bar/barfoo/", "/fo", NULL, NULL);
 550 }
 551
 552 static void test_prefix_root_one(const char *r, const char *p, const char *expected) {
 553         _cleanup_free_ char *s = NULL;
 554         const char *t;
 555
 556         assert_se(s = path_join(r, p));
 557         assert_se(path_equal_ptr(s, expected));
 558
 559         t = prefix_roota(r, p);
 560         assert_se(t);
 561         assert_se(path_equal_ptr(t, expected));
 562 }
 563
 564 static void test_prefix_root(void) {
 565         log_info("/* %s */", __func__);
 566
 567         test_prefix_root_one("/", "/foo", "/foo");
 568         test_prefix_root_one(NULL, "/foo", "/foo");
 569         test_prefix_root_one("", "/foo", "/foo");
 570         test_prefix_root_one("///", "/foo", "/foo");
 571         test_prefix_root_one("/", "////foo", "/foo");
 572         test_prefix_root_one(NULL, "////foo", "/foo");
 573         test_prefix_root_one("/", "foo", "/foo");
 574         test_prefix_root_one("", "foo", "foo");
 575         test_prefix_root_one(NULL, "foo", "foo");
 576
 577         test_prefix_root_one("/foo", "/bar", "/foo/bar");
 578         test_prefix_root_one("/foo", "bar", "/foo/bar");
 579         test_prefix_root_one("foo", "bar", "foo/bar");
 580         test_prefix_root_one("/foo/", "/bar", "/foo/bar");
 581         test_prefix_root_one("/foo/", "//bar", "/foo/bar");
 582         test_prefix_root_one("/foo///", "//bar", "/foo/bar");
 583 }
 584
 585 static void test_file_in_same_dir(void) {
 586         char *t;
 587
 588         log_info("/* %s */", __func__);
 589
 590         t = file_in_same_dir("/", "a");
 591         assert_se(streq(t, "/a"));
 592         free(t);
 593
 594         t = file_in_same_dir("/", "/a");
 595         assert_se(streq(t, "/a"));
 596         free(t);
 597
 598         t = file_in_same_dir("", "a");
 599         assert_se(streq(t, "a"));
 600         free(t);
 601
 602         t = file_in_same_dir("a/", "a");
 603         assert_se(streq(t, "a/a"));
 604         free(t);
 605
 606         t = file_in_same_dir("bar/foo", "bar");
 607         assert_se(streq(t, "bar/bar"));
 608         free(t);
 609 }
 610
 611 static void test_path_find_first_component_one(
 612                 const char *path,
 613                 bool accept_dot_dot,
 614                 char **expected,
 615                 int ret) {
 616
 617         log_debug("/* %s(\"%s\", accept_dot_dot=%s) */", __func__, strnull(path), yes_no(accept_dot_dot));
 618
 619         for (const char *p = path;;) {
 620                 const char *e;
 621                 int r;
 622
 623                 r = path_find_first_component(&p, accept_dot_dot, &e);
 624                 if (r <= 0) {
 625                         if (r == 0) {
 626                                 if (path)
 627                                         assert_se(p == path + strlen_ptr(path));
 628                                 else
 629                                         assert_se(!p);
 630                                 assert_se(!e);
 631                         }
 632                         assert_se(r == ret);
 633                         assert_se(strv_isempty(expected));
 634                         return;
 635                 }
 636
 637                 assert_se(e);
 638                 assert_se(strcspn(e, "/") == (size_t) r);
 639                 assert_se(strlen_ptr(*expected) == (size_t) r);
 640                 assert_se(strneq(e, *expected++, r));
 641         }
 642 }
 643
 644 static void test_path_find_first_component(void) {
 645         _cleanup_free_ char *hoge = NULL;
 646         char foo[NAME_MAX * 2];
 647
 648         log_info("/* %s */", __func__);
 649
 650         test_path_find_first_component_one(NULL, false, NULL, 0);
 651         test_path_find_first_component_one("", false, NULL, 0);
 652         test_path_find_first_component_one("/", false, NULL, 0);
 653         test_path_find_first_component_one(".", false, NULL, 0);
 654         test_path_find_first_component_one("./", false, NULL, 0);
 655         test_path_find_first_component_one("./.", false, NULL, 0);
 656         test_path_find_first_component_one("..", false, NULL, -EINVAL);
 657         test_path_find_first_component_one("/..", false, NULL, -EINVAL);
 658         test_path_find_first_component_one("./..", false, NULL, -EINVAL);
 659         test_path_find_first_component_one("////./././//.", false, NULL, 0);
 660         test_path_find_first_component_one("a/b/c", false, STRV_MAKE("a", "b", "c"), 0);
 661         test_path_find_first_component_one("././//.///aa/bbb//./ccc", false, STRV_MAKE("aa", "bbb", "ccc"), 0);
 662         test_path_find_first_component_one("././//.///aa/.../../bbb//./ccc/.", false, STRV_MAKE("aa", "..."), -EINVAL);
 663         test_path_find_first_component_one("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/.", false, STRV_MAKE("aaa", ".bbb"), -EINVAL);
 664         test_path_find_first_component_one("a/foo./b", false, STRV_MAKE("a", "foo.", "b"), 0);
 665
 666         test_path_find_first_component_one(NULL, true, NULL, 0);
 667         test_path_find_first_component_one("", true, NULL, 0);
 668         test_path_find_first_component_one("/", true, NULL, 0);
 669         test_path_find_first_component_one(".", true, NULL, 0);
 670         test_path_find_first_component_one("./", true, NULL, 0);
 671         test_path_find_first_component_one("./.", true, NULL, 0);
 672         test_path_find_first_component_one("..", true, STRV_MAKE(".."), 0);
 673         test_path_find_first_component_one("/..", true, STRV_MAKE(".."), 0);
 674         test_path_find_first_component_one("./..", true, STRV_MAKE(".."), 0);
 675         test_path_find_first_component_one("////./././//.", true, NULL, 0);
 676         test_path_find_first_component_one("a/b/c", true, STRV_MAKE("a", "b", "c"), 0);
 677         test_path_find_first_component_one("././//.///aa/bbb//./ccc", true, STRV_MAKE("aa", "bbb", "ccc"), 0);
 678         test_path_find_first_component_one("././//.///aa/.../../bbb//./ccc/.", true, STRV_MAKE("aa", "...", "..", "bbb", "ccc"), 0);
 679         test_path_find_first_component_one("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/.", true, STRV_MAKE("aaa", ".bbb", "..", "c.", "d.dd", "..eeee"), 0);
 680         test_path_find_first_component_one("a/foo./b", true, STRV_MAKE("a", "foo.", "b"), 0);
 681
 682         memset(foo, 'a', sizeof(foo) -1);
 683         char_array_0(foo);
 684
 685         test_path_find_first_component_one(foo, false, NULL, -EINVAL);
 686         test_path_find_first_component_one(foo, true, NULL, -EINVAL);
 687
 688         hoge = strjoin("a/b/c/", foo, "//d/e/.//f/");
 689         assert_se(hoge);
 690
 691         test_path_find_first_component_one(hoge, false, STRV_MAKE("a", "b", "c"), -EINVAL);
 692         test_path_find_first_component_one(hoge, true, STRV_MAKE("a", "b", "c"), -EINVAL);
 693 }
 694
 695 static void test_path_find_last_component_one(
 696                 const char *path,
 697                 bool accept_dot_dot,
 698                 char **expected,
 699                 int ret) {
 700
 701         log_debug("/* %s(\"%s\", accept_dot_dot=%s) */", __func__, strnull(path), yes_no(accept_dot_dot));
 702
 703         for (const char *next = NULL;;) {
 704                 const char *e;
 705                 int r;
 706
 707                 r = path_find_last_component(path, accept_dot_dot, &next, &e);
 708                 if (r <= 0) {
 709                         if (r == 0) {
 710                                 assert_se(next == path);
 711                                 assert_se(!e);
 712                         }
 713                         assert_se(r == ret);
 714                         assert_se(strv_isempty(expected));
 715                         return;
 716                 }
 717
 718                 assert_se(e);
 719                 assert_se(strcspn(e, "/") == (size_t) r);
 720                 assert_se(strlen_ptr(*expected) == (size_t) r);
 721                 assert_se(strneq(e, *expected++, r));
 722         }
 723 }
 724
 725 static void test_path_find_last_component(void) {
 726         _cleanup_free_ char *hoge = NULL;
 727         char foo[NAME_MAX * 2];
 728
 729         log_info("/* %s */", __func__);
 730
 731         test_path_find_last_component_one(NULL, false, NULL, 0);
 732         test_path_find_last_component_one("", false, NULL, 0);
 733         test_path_find_last_component_one("/", false, NULL, 0);
 734         test_path_find_last_component_one(".", false, NULL, 0);
 735         test_path_find_last_component_one("./", false, NULL, 0);
 736         test_path_find_last_component_one("./.", false, NULL, 0);
 737         test_path_find_last_component_one("..", false, NULL, -EINVAL);
 738         test_path_find_last_component_one("/..", false, NULL, -EINVAL);
 739         test_path_find_last_component_one("./..", false, NULL, -EINVAL);
 740         test_path_find_last_component_one("////./././//.", false, NULL, 0);
 741         test_path_find_last_component_one("a/b/c", false, STRV_MAKE("c", "b", "a"), 0);
 742         test_path_find_last_component_one("././//.///aa./.bbb//./ccc/././/", false, STRV_MAKE("ccc", ".bbb", "aa."), 0);
 743         test_path_find_last_component_one("././//.///aa/../.../bbb//./ccc/.", false, STRV_MAKE("ccc", "bbb", "..."), -EINVAL);
 744         test_path_find_last_component_one("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/.", false, STRV_MAKE("..eeee", "d.dd", "c."), -EINVAL);
 745
 746         test_path_find_last_component_one(NULL, true, NULL, 0);
 747         test_path_find_last_component_one("", true, NULL, 0);
 748         test_path_find_last_component_one("/", true, NULL, 0);
 749         test_path_find_last_component_one(".", true, NULL, 0);
 750         test_path_find_last_component_one("./", true, NULL, 0);
 751         test_path_find_last_component_one("./.", true, NULL, 0);
 752         test_path_find_last_component_one("..", true, STRV_MAKE(".."), 0);
 753         test_path_find_last_component_one("/..", true, STRV_MAKE(".."), 0);
 754         test_path_find_last_component_one("./..", true, STRV_MAKE(".."), 0);
 755         test_path_find_last_component_one("////./././//.", true, NULL, 0);
 756         test_path_find_last_component_one("a/b/c", true, STRV_MAKE("c", "b", "a"), 0);
 757         test_path_find_last_component_one("././//.///aa./.bbb//./ccc/././/", true, STRV_MAKE("ccc", ".bbb", "aa."), 0);
 758         test_path_find_last_component_one("././//.///aa/../.../bbb//./ccc/.", true, STRV_MAKE("ccc", "bbb", "...", "..", "aa"), 0);
 759         test_path_find_last_component_one("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/.", true, STRV_MAKE("..eeee", "d.dd", "c.", "..", ".bbb", "aaa"), 0);
 760
 761         memset(foo, 'a', sizeof(foo) -1);
 762         char_array_0(foo);
 763
 764         test_path_find_last_component_one(foo, false, NULL, -EINVAL);
 765         test_path_find_last_component_one(foo, true, NULL, -EINVAL);
 766
 767         hoge = strjoin(foo, "/a/b/c/");
 768         assert_se(hoge);
 769
 770         test_path_find_last_component_one(hoge, false, STRV_MAKE("c", "b", "a"), -EINVAL);
 771         test_path_find_last_component_one(hoge, true, STRV_MAKE("c", "b", "a"), -EINVAL);
 772 }
 773
 774 static void test_last_path_component(void) {
 775         assert_se(last_path_component(NULL) == NULL);
 776         assert_se(streq(last_path_component("a/b/c"), "c"));
 777         assert_se(streq(last_path_component("a/b/c/"), "c/"));
 778         assert_se(streq(last_path_component("/"), "/"));
 779         assert_se(streq(last_path_component("//"), "/"));
 780         assert_se(streq(last_path_component("///"), "/"));
 781         assert_se(streq(last_path_component("."), "."));
 782         assert_se(streq(last_path_component("./."), "."));
 783         assert_se(streq(last_path_component("././"), "./"));
 784         assert_se(streq(last_path_component("././/"), ".//"));
 785         assert_se(streq(last_path_component("/foo/a"), "a"));
 786         assert_se(streq(last_path_component("/foo/a/"), "a/"));
 787         assert_se(streq(last_path_component(""), ""));
 788         assert_se(streq(last_path_component("a"), "a"));
 789         assert_se(streq(last_path_component("a/"), "a/"));
 790         assert_se(streq(last_path_component("/a"), "a"));
 791         assert_se(streq(last_path_component("/a/"), "a/"));
 792 }
 793
 794 static void test_path_extract_filename_one(const char *input, const char *output, int ret) {
 795         _cleanup_free_ char *k = NULL;
 796         int r;
 797
 798         r = path_extract_filename(input, &k);
 799         log_info_errno(r, "%s → %s/%m [expected: %s/%s]",
 800                        strnull(input),
 801                        strnull(k), /* strerror(r) is printed via %m, to avoid that the two strerror()'s overwrite each other's buffers */
 802                        strnull(output), ret < 0 ? strerror_safe(ret) : "-");
 803         assert_se(streq_ptr(k, output));
 804         assert_se(r == ret);
 805 }
 806
 807 static void test_path_extract_filename(void) {
 808         log_info("/* %s */", __func__);
 809
 810         test_path_extract_filename_one(NULL, NULL, -EINVAL);
 811         test_path_extract_filename_one("a/b/c", "c", 0);
 812         test_path_extract_filename_one("a/b/c/", "c", O_DIRECTORY);
 813         test_path_extract_filename_one("/", NULL, -EADDRNOTAVAIL);
 814         test_path_extract_filename_one("//", NULL, -EADDRNOTAVAIL);
 815         test_path_extract_filename_one("///", NULL, -EADDRNOTAVAIL);
 816         test_path_extract_filename_one("/.", NULL, -EADDRNOTAVAIL);
 817         test_path_extract_filename_one(".", NULL, -EADDRNOTAVAIL);
 818         test_path_extract_filename_one("./", NULL, -EADDRNOTAVAIL);
 819         test_path_extract_filename_one("./.", NULL, -EADDRNOTAVAIL);
 820         test_path_extract_filename_one("././", NULL, -EADDRNOTAVAIL);
 821         test_path_extract_filename_one("././/", NULL, -EADDRNOTAVAIL);
 822         test_path_extract_filename_one("/foo/a", "a", 0);
 823         test_path_extract_filename_one("/foo/a/", "a", O_DIRECTORY);
 824         test_path_extract_filename_one("", NULL, -EINVAL);
 825         test_path_extract_filename_one("a", "a", 0);
 826         test_path_extract_filename_one("a/", "a", O_DIRECTORY);
 827         test_path_extract_filename_one("a/././//.", "a", O_DIRECTORY);
 828         test_path_extract_filename_one("/a", "a", 0);
 829         test_path_extract_filename_one("/a/", "a", O_DIRECTORY);
 830         test_path_extract_filename_one("/a//./.", "a", O_DIRECTORY);
 831         test_path_extract_filename_one("/////////////a/////////////", "a", O_DIRECTORY);
 832         test_path_extract_filename_one("//./a/.///b./././.c//./d//.", "d", O_DIRECTORY);
 833         test_path_extract_filename_one("xx/.", "xx", O_DIRECTORY);
 834         test_path_extract_filename_one("xx/..", NULL, -EINVAL);
 835         test_path_extract_filename_one("..", NULL, -EINVAL);
 836         test_path_extract_filename_one("/..", NULL, -EINVAL);
 837         test_path_extract_filename_one("../", NULL, -EINVAL);
 838 }
 839
 840 static void test_path_extract_directory_one(const char *input, const char *output, int ret) {
 841         _cleanup_free_ char *k = NULL;
 842         int r;
 843
 844         r = path_extract_directory(input, &k);
 845         log_info_errno(r, "%s → %s/%m [expected: %s/%s]",
 846                        strnull(input),
 847                        strnull(k), /* we output strerror_safe(r) via %m here, since otherwise the error buffer might be overwritten twice */
 848                        strnull(output), strerror_safe(ret));
 849         assert_se(streq_ptr(k, output));
 850         assert_se(r == ret);
 851
 852         /* Extra safety check: let's make sure that if we split out the filename too (and it works) the
 853          * joined parts are identical to the original again */
 854         if (r >= 0) {
 855                 _cleanup_free_ char *f = NULL;
 856
 857                 r = path_extract_filename(input, &f);
 858                 if (r >= 0) {
 859                         _cleanup_free_ char *j = NULL;
 860
 861                         assert_se(j = path_join(k, f));
 862                         assert_se(path_equal(input, j));
 863                 }
 864         }
 865 }
 866
 867 static void test_path_extract_directory(void) {
 868         log_info("/* %s */", __func__);
 869
 870         test_path_extract_directory_one(NULL, NULL, -EINVAL);
 871         test_path_extract_directory_one("a/b/c", "a/b", 0);
 872         test_path_extract_directory_one("a/b/c/", "a/b", 0);
 873         test_path_extract_directory_one("/", NULL, -EADDRNOTAVAIL);
 874         test_path_extract_directory_one("//", NULL, -EADDRNOTAVAIL);
 875         test_path_extract_directory_one("///", NULL, -EADDRNOTAVAIL);
 876         test_path_extract_directory_one("/.", NULL, -EADDRNOTAVAIL);
 877         test_path_extract_directory_one(".", NULL, -EADDRNOTAVAIL);
 878         test_path_extract_directory_one("./", NULL, -EADDRNOTAVAIL);
 879         test_path_extract_directory_one("./.", NULL, -EADDRNOTAVAIL);
 880         test_path_extract_directory_one("././", NULL, -EADDRNOTAVAIL);
 881         test_path_extract_directory_one("././/", NULL, -EADDRNOTAVAIL);
 882         test_path_extract_directory_one("/foo/a", "/foo", 0);
 883         test_path_extract_directory_one("/foo/a/", "/foo", 0);
 884         test_path_extract_directory_one("", NULL, -EINVAL);
 885         test_path_extract_directory_one("a", NULL, -EDESTADDRREQ);
 886         test_path_extract_directory_one("a/", NULL, -EDESTADDRREQ);
 887         test_path_extract_directory_one("a/././//.", NULL, -EDESTADDRREQ);
 888         test_path_extract_directory_one("/a", "/", 0);
 889         test_path_extract_directory_one("/a/", "/", 0);
 890         test_path_extract_directory_one("/a//./.", "/", 0);
 891         test_path_extract_directory_one("/////////////a/////////////", "/", 0);
 892         test_path_extract_directory_one("//./a/.///b./././.c//./d//.", "/a/b./.c", 0);
 893         test_path_extract_directory_one("xx/.", NULL, -EDESTADDRREQ);
 894         test_path_extract_directory_one("xx/..", NULL, -EINVAL);
 895         test_path_extract_directory_one("..", NULL, -EINVAL);
 896         test_path_extract_directory_one("/..", NULL, -EINVAL);
 897         test_path_extract_directory_one("../", NULL, -EINVAL);
 898 }
 899
 900 static void test_filename_is_valid(void) {
 901         char foo[NAME_MAX+2];
 902
 903         log_info("/* %s */", __func__);
 904
 905         assert_se(!filename_is_valid(""));
 906         assert_se(!filename_is_valid("/bar/foo"));
 907         assert_se(!filename_is_valid("/"));
 908         assert_se(!filename_is_valid("."));
 909         assert_se(!filename_is_valid(".."));
 910         assert_se(!filename_is_valid("bar/foo"));
 911         assert_se(!filename_is_valid("bar/foo/"));
 912         assert_se(!filename_is_valid("bar//"));
 913
 914         memset(foo, 'a', sizeof(foo) - 1);
 915         char_array_0(foo);
 916
 917         assert_se(!filename_is_valid(foo));
 918
 919         assert_se(filename_is_valid("foo_bar-333"));
 920         assert_se(filename_is_valid("o.o"));
 921 }
 922
 923 static void test_path_is_valid_and_safe_one(const char *p, bool ret) {
 924         log_debug("/* %s(\"%s\") */", __func__, strnull(p));
 925
 926         assert_se(path_is_valid(p) == ret);
 927         if (ret)
 928                 ret = !streq(p, "..") &&
 929                         !startswith(p, "../") &&
 930                         !endswith(p, "/..") &&
 931                         !strstr(p, "/../");
 932         assert_se(path_is_safe(p) == ret);
 933 }
 934
 935 static void test_path_is_valid_and_safe(void) {
 936         char foo[PATH_MAX+2];
 937         const char *c;
 938
 939         log_info("/* %s */", __func__);
 940
 941         test_path_is_valid_and_safe_one("", false);
 942         test_path_is_valid_and_safe_one("/bar/foo", true);
 943         test_path_is_valid_and_safe_one("/bar/foo/", true);
 944         test_path_is_valid_and_safe_one("/bar/foo/", true);
 945         test_path_is_valid_and_safe_one("//bar//foo//", true);
 946         test_path_is_valid_and_safe_one("/", true);
 947         test_path_is_valid_and_safe_one("/////", true);
 948         test_path_is_valid_and_safe_one("/////.///.////...///..//.", true);
 949         test_path_is_valid_and_safe_one(".", true);
 950         test_path_is_valid_and_safe_one("..", true);
 951         test_path_is_valid_and_safe_one("bar/foo", true);
 952         test_path_is_valid_and_safe_one("bar/foo/", true);
 953         test_path_is_valid_and_safe_one("bar//", true);
 954
 955         memset(foo, 'a', sizeof(foo) -1);
 956         char_array_0(foo);
 957
 958         test_path_is_valid_and_safe_one(foo, false);
 959
 960         c = strjoina("/xxx/", foo, "/yyy");
 961         test_path_is_valid_and_safe_one(c, false);
 962
 963         test_path_is_valid_and_safe_one("foo_bar-333", true);
 964         test_path_is_valid_and_safe_one("o.o", true);
 965 }
 966
 967 static void test_hidden_or_backup_file(void) {
 968         log_info("/* %s */", __func__);
 969
 970         assert_se(hidden_or_backup_file(".hidden"));
 971         assert_se(hidden_or_backup_file("..hidden"));
 972         assert_se(!hidden_or_backup_file("hidden."));
 973
 974         assert_se(hidden_or_backup_file("backup~"));
 975         assert_se(hidden_or_backup_file(".backup~"));
 976
 977         assert_se(hidden_or_backup_file("lost+found"));
 978         assert_se(hidden_or_backup_file("aquota.user"));
 979         assert_se(hidden_or_backup_file("aquota.group"));
 980
 981         assert_se(hidden_or_backup_file("test.rpmnew"));
 982         assert_se(hidden_or_backup_file("test.dpkg-old"));
 983         assert_se(hidden_or_backup_file("test.dpkg-remove"));
 984         assert_se(hidden_or_backup_file("test.swp"));
 985
 986         assert_se(!hidden_or_backup_file("test.rpmnew."));
 987         assert_se(!hidden_or_backup_file("test.dpkg-old.foo"));
 988 }
 989
 990 static void test_systemd_installation_has_version(const char *path) {
 991         int r;
 992         const unsigned versions[] = {0, 231, PROJECT_VERSION, 999};
 993         unsigned i;
 994
 995         log_info("/* %s */", __func__);
 996
 997         for (i = 0; i < ELEMENTSOF(versions); i++) {
 998                 r = systemd_installation_has_version(path, versions[i]);
 999                 assert_se(r >= 0);
1000                 log_info("%s has systemd >= %u: %s",
1001                          path ?: "Current installation", versions[i], yes_no(r));
1002         }
1003 }
1004
1005 static void test_skip_dev_prefix(void) {
1006         log_info("/* %s */", __func__);
1007
1008         assert_se(streq(skip_dev_prefix("/"), "/"));
1009         assert_se(streq(skip_dev_prefix("/dev"), ""));
1010         assert_se(streq(skip_dev_prefix("/dev/"), ""));
1011         assert_se(streq(skip_dev_prefix("/dev/foo"), "foo"));
1012         assert_se(streq(skip_dev_prefix("/dev/foo/bar"), "foo/bar"));
1013         assert_se(streq(skip_dev_prefix("//dev"), ""));
1014         assert_se(streq(skip_dev_prefix("//dev//"), ""));
1015         assert_se(streq(skip_dev_prefix("/dev///foo"), "foo"));
1016         assert_se(streq(skip_dev_prefix("///dev///foo///bar"), "foo///bar"));
1017         assert_se(streq(skip_dev_prefix("//foo"), "//foo"));
1018         assert_se(streq(skip_dev_prefix("foo"), "foo"));
1019 }
1020
1021 static void test_empty_or_root(void) {
1022         log_info("/* %s */", __func__);
1023
1024         assert_se(empty_or_root(NULL));
1025         assert_se(empty_or_root(""));
1026         assert_se(empty_or_root("/"));
1027         assert_se(empty_or_root("//"));
1028         assert_se(empty_or_root("///"));
1029         assert_se(empty_or_root("/////////////////"));
1030         assert_se(!empty_or_root("xxx"));
1031         assert_se(!empty_or_root("/xxx"));
1032         assert_se(!empty_or_root("/xxx/"));
1033         assert_se(!empty_or_root("//yy//"));
1034 }
1035
1036 static void test_path_startswith_set(void) {
1037         log_info("/* %s */", __func__);
1038
1039         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/foo/bar", "/zzz"), ""));
1040         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/foo/", "/zzz"), "bar"));
1041         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/foo", "/zzz"), "bar"));
1042         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/", "/zzz"), "foo/bar"));
1043         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "", "/zzz"), NULL));
1044
1045         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/foo/bar", "/zzz"), NULL));
1046         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/foo/", "/zzz"), "bar2"));
1047         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/foo", "/zzz"), "bar2"));
1048         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/", "/zzz"), "foo/bar2"));
1049         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "", "/zzz"), NULL));
1050
1051         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/foo/bar", "/zzz"), NULL));
1052         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/foo/", "/zzz"), NULL));
1053         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/foo", "/zzz"), NULL));
1054         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/", "/zzz"), "foo2/bar"));
1055         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "", "/zzz"), NULL));
1056 }
1057
1058 static void test_path_startswith_strv(void) {
1059         log_info("/* %s */", __func__);
1060
1061         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "/foo/bar", "/zzz")), ""));
1062         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "/foo/", "/zzz")), "bar"));
1063         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "/foo", "/zzz")), "bar"));
1064         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "/", "/zzz")), "foo/bar"));
1065         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "", "/zzz")), NULL));
1066
1067         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "/foo/bar", "/zzz")), NULL));
1068         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "/foo/", "/zzz")), "bar2"));
1069         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "/foo", "/zzz")), "bar2"));
1070         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "/", "/zzz")), "foo/bar2"));
1071         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "", "/zzz")), NULL));
1072
1073         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "/foo/bar", "/zzz")), NULL));
1074         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "/foo/", "/zzz")), NULL));
1075         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "/foo", "/zzz")), NULL));
1076         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "/", "/zzz")), "foo2/bar"));
1077         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "", "/zzz")), NULL));
1078 }
1079
1080 int main(int argc, char **argv) {
1081         test_setup_logging(LOG_DEBUG);
1082
1083         log_info("PATH_MAX=%zu\n"
1084                  "FILENAME_MAX=%zu\n"
1085                  "NAME_MAX=%zu",
1086                  (size_t) PATH_MAX,
1087                  (size_t) FILENAME_MAX,
1088                  (size_t) NAME_MAX);
1089
1090         assert_cc(FILENAME_MAX == PATH_MAX);
1091
1092         test_print_paths();
1093         test_path();
1094         test_path_simplify();
1095         test_path_compare();
1096         test_path_equal_root();
1097         test_find_executable_full();
1098         test_find_executable(argv[0]);
1099         test_find_executable_exec();
1100         test_prefixes();
1101         test_path_join();
1102         test_path_extend();
1103         test_fsck_exists();
1104         test_make_relative();
1105         test_strv_resolve();
1106         test_path_startswith();
1107         test_prefix_root();
1108         test_file_in_same_dir();
1109         test_path_find_first_component();
1110         test_path_find_last_component();
1111         test_last_path_component();
1112         test_path_extract_filename();
1113         test_path_extract_directory();
1114         test_filename_is_valid();
1115         test_path_is_valid_and_safe();
1116         test_hidden_or_backup_file();
1117         test_skip_dev_prefix();
1118         test_empty_or_root();
1119         test_path_startswith_set();
1120         test_path_startswith_strv();
1121
1122         test_systemd_installation_has_version(argv[1]); /* NULL is OK */
1123
1124         return 0;
1125 }