src/test/test-path-util.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright © 2013 Zbigniew Jędrzejewski-Szmek
   4 ***/
   5
   6 #include <stdio.h>
   7 #include <unistd.h>
   8
   9 #include "alloc-util.h"
  10 #include "fd-util.h"
  11 #include "macro.h"
  12 #include "mount-util.h"
  13 #include "path-util.h"
  14 #include "rm-rf.h"
  15 #include "stat-util.h"
  16 #include "string-util.h"
  17 #include "strv.h"
  18 #include "util.h"
  19
  20 #define test_path_compare(a, b, result) {                 \
  21                 assert_se(path_compare(a, b) == result);  \
  22                 assert_se(path_compare(b, a) == -result); \
  23                 assert_se(path_equal(a, b) == !result);   \
  24                 assert_se(path_equal(b, a) == !result);   \
  25         }
  26
  27 static void test_path_simplify(const char *in, const char *out, const char *out_dot) {
  28         char *p;
  29
  30         p = strdupa(in);
  31         assert_se(streq(path_simplify(p, false), out));
  32
  33         p = strdupa(in);
  34         assert_se(streq(path_simplify(p, true), out_dot));
  35 }
  36
  37 static void test_path(void) {
  38         _cleanup_close_ int fd = -1;
  39
  40         test_path_compare("/goo", "/goo", 0);
  41         test_path_compare("/goo", "/goo", 0);
  42         test_path_compare("//goo", "/goo", 0);
  43         test_path_compare("//goo/////", "/goo", 0);
  44         test_path_compare("goo/////", "goo", 0);
  45
  46         test_path_compare("/goo/boo", "/goo//boo", 0);
  47         test_path_compare("//goo/boo", "/goo/boo//", 0);
  48
  49         test_path_compare("/", "///", 0);
  50
  51         test_path_compare("/x", "x/", 1);
  52         test_path_compare("x/", "/", -1);
  53
  54         test_path_compare("/x/./y", "x/y", 1);
  55         test_path_compare("x/.y", "x/y", -1);
  56
  57         test_path_compare("foo", "/foo", -1);
  58         test_path_compare("/foo", "/foo/bar", -1);
  59         test_path_compare("/foo/aaa", "/foo/b", -1);
  60         test_path_compare("/foo/aaa", "/foo/b/a", -1);
  61         test_path_compare("/foo/a", "/foo/aaa", -1);
  62         test_path_compare("/foo/a/b", "/foo/aaa", -1);
  63
  64         assert_se(path_is_absolute("/"));
  65         assert_se(!path_is_absolute("./"));
  66
  67         assert_se(is_path("/dir"));
  68         assert_se(is_path("a/b"));
  69         assert_se(!is_path("."));
  70
  71         assert_se(streq(basename("./aa/bb/../file.da."), "file.da."));
  72         assert_se(streq(basename("/aa///.file"), ".file"));
  73         assert_se(streq(basename("/aa///file..."), "file..."));
  74         assert_se(streq(basename("file.../"), ""));
  75
  76         fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY|O_NOCTTY);
  77         assert_se(fd >= 0);
  78         assert_se(fd_is_mount_point(fd, "/", 0) > 0);
  79
  80         test_path_simplify("aaa/bbb////ccc", "aaa/bbb/ccc", "aaa/bbb/ccc");
  81         test_path_simplify("//aaa/.////ccc", "/aaa/./ccc", "/aaa/ccc");
  82         test_path_simplify("///", "/", "/");
  83         test_path_simplify("///.//", "/.", "/");
  84         test_path_simplify("///.//.///", "/./.", "/");
  85         test_path_simplify("////.././///../.", "/.././../.", "/../..");
  86         test_path_simplify(".", ".", "");
  87         test_path_simplify("./", ".", "");
  88         test_path_simplify(".///.//./.", "./././.", "");
  89         test_path_simplify(".///.//././/", "./././.", "");
  90         test_path_simplify("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/.",
  91                            "/./aaa/././.bbb/../c./d.dd/..eeee/.",
  92                            "/aaa/.bbb/../c./d.dd/..eeee");
  93         test_path_simplify("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
  94                            "/./aaa/././.bbb/../c./d.dd/..eeee/..",
  95                            "/aaa/.bbb/../c./d.dd/..eeee/..");
  96         test_path_simplify(".//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
  97                            "././aaa/././.bbb/../c./d.dd/..eeee/..",
  98                            "aaa/.bbb/../c./d.dd/..eeee/..");
  99         test_path_simplify("..//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
 100                            ".././aaa/././.bbb/../c./d.dd/..eeee/..",
 101                            "../aaa/.bbb/../c./d.dd/..eeee/..");
 102
 103         assert_se(PATH_IN_SET("/bin", "/", "/bin", "/foo"));
 104         assert_se(PATH_IN_SET("/bin", "/bin"));
 105         assert_se(PATH_IN_SET("/bin", "/foo/bar", "/bin"));
 106         assert_se(PATH_IN_SET("/", "/", "/", "/foo/bar"));
 107         assert_se(!PATH_IN_SET("/", "/abc", "/def"));
 108
 109         assert_se(path_equal_ptr(NULL, NULL));
 110         assert_se(path_equal_ptr("/a", "/a"));
 111         assert_se(!path_equal_ptr("/a", "/b"));
 112         assert_se(!path_equal_ptr("/a", NULL));
 113         assert_se(!path_equal_ptr(NULL, "/a"));
 114 }
 115
 116 static void test_path_equal_root(void) {
 117         /* Nail down the details of how path_equal("/", ...) works. */
 118
 119         assert_se(path_equal("/", "/"));
 120         assert_se(path_equal("/", "//"));
 121
 122         assert_se(!path_equal("/", "/./"));
 123         assert_se(!path_equal("/", "/../"));
 124
 125         assert_se(!path_equal("/", "/.../"));
 126
 127         /* Make sure that files_same works as expected. */
 128
 129         assert_se(files_same("/", "/", 0) > 0);
 130         assert_se(files_same("/", "/", AT_SYMLINK_NOFOLLOW) > 0);
 131         assert_se(files_same("/", "//", 0) > 0);
 132         assert_se(files_same("/", "//", AT_SYMLINK_NOFOLLOW) > 0);
 133
 134         assert_se(files_same("/", "/./", 0) > 0);
 135         assert_se(files_same("/", "/./", AT_SYMLINK_NOFOLLOW) > 0);
 136         assert_se(files_same("/", "/../", 0) > 0);
 137         assert_se(files_same("/", "/../", AT_SYMLINK_NOFOLLOW) > 0);
 138
 139         assert_se(files_same("/", "/.../", 0) == -ENOENT);
 140         assert_se(files_same("/", "/.../", AT_SYMLINK_NOFOLLOW) == -ENOENT);
 141
 142         /* The same for path_equal_or_files_same. */
 143
 144         assert_se(path_equal_or_files_same("/", "/", 0));
 145         assert_se(path_equal_or_files_same("/", "/", AT_SYMLINK_NOFOLLOW));
 146         assert_se(path_equal_or_files_same("/", "//", 0));
 147         assert_se(path_equal_or_files_same("/", "//", AT_SYMLINK_NOFOLLOW));
 148
 149         assert_se(path_equal_or_files_same("/", "/./", 0));
 150         assert_se(path_equal_or_files_same("/", "/./", AT_SYMLINK_NOFOLLOW));
 151         assert_se(path_equal_or_files_same("/", "/../", 0));
 152         assert_se(path_equal_or_files_same("/", "/../", AT_SYMLINK_NOFOLLOW));
 153
 154         assert_se(!path_equal_or_files_same("/", "/.../", 0));
 155         assert_se(!path_equal_or_files_same("/", "/.../", AT_SYMLINK_NOFOLLOW));
 156 }
 157
 158 static void test_find_binary(const char *self) {
 159         char *p;
 160
 161         assert_se(find_binary("/bin/sh", &p) == 0);
 162         puts(p);
 163         assert_se(path_equal(p, "/bin/sh"));
 164         free(p);
 165
 166         assert_se(find_binary(self, &p) == 0);
 167         puts(p);
 168         /* libtool might prefix the binary name with "lt-" */
 169         assert_se(endswith(p, "/lt-test-path-util") || endswith(p, "/test-path-util"));
 170         assert_se(path_is_absolute(p));
 171         free(p);
 172
 173         assert_se(find_binary("sh", &p) == 0);
 174         puts(p);
 175         assert_se(endswith(p, "/sh"));
 176         assert_se(path_is_absolute(p));
 177         free(p);
 178
 179         assert_se(find_binary("xxxx-xxxx", &p) == -ENOENT);
 180         assert_se(find_binary("/some/dir/xxxx-xxxx", &p) == -ENOENT);
 181 }
 182
 183 static void test_prefixes(void) {
 184         static const char* values[] = { "/a/b/c/d", "/a/b/c", "/a/b", "/a", "", NULL};
 185         unsigned i;
 186         char s[PATH_MAX];
 187         bool b;
 188
 189         i = 0;
 190         PATH_FOREACH_PREFIX_MORE(s, "/a/b/c/d") {
 191                 log_error("---%s---", s);
 192                 assert_se(streq(s, values[i++]));
 193         }
 194         assert_se(values[i] == NULL);
 195
 196         i = 1;
 197         PATH_FOREACH_PREFIX(s, "/a/b/c/d") {
 198                 log_error("---%s---", s);
 199                 assert_se(streq(s, values[i++]));
 200         }
 201         assert_se(values[i] == NULL);
 202
 203         i = 0;
 204         PATH_FOREACH_PREFIX_MORE(s, "////a////b////c///d///////")
 205                 assert_se(streq(s, values[i++]));
 206         assert_se(values[i] == NULL);
 207
 208         i = 1;
 209         PATH_FOREACH_PREFIX(s, "////a////b////c///d///////")
 210                 assert_se(streq(s, values[i++]));
 211         assert_se(values[i] == NULL);
 212
 213         PATH_FOREACH_PREFIX(s, "////")
 214                 assert_not_reached("Wut?");
 215
 216         b = false;
 217         PATH_FOREACH_PREFIX_MORE(s, "////") {
 218                 assert_se(!b);
 219                 assert_se(streq(s, ""));
 220                 b = true;
 221         }
 222         assert_se(b);
 223
 224         PATH_FOREACH_PREFIX(s, "")
 225                 assert_not_reached("wut?");
 226
 227         b = false;
 228         PATH_FOREACH_PREFIX_MORE(s, "") {
 229                 assert_se(!b);
 230                 assert_se(streq(s, ""));
 231                 b = true;
 232         }
 233 }
 234
 235 static void test_path_join(void) {
 236
 237 #define test_join(root, path, rest, expected) {  \
 238                 _cleanup_free_ char *z = NULL;   \
 239                 z = path_join(root, path, rest); \
 240                 assert_se(streq(z, expected));   \
 241         }
 242
 243         test_join("/root", "/a/b", "/c", "/root/a/b/c");
 244         test_join("/root", "a/b", "c", "/root/a/b/c");
 245         test_join("/root", "/a/b", "c", "/root/a/b/c");
 246         test_join("/root", "/", "c", "/root/c");
 247         test_join("/root", "/", NULL, "/root/");
 248
 249         test_join(NULL, "/a/b", "/c", "/a/b/c");
 250         test_join(NULL, "a/b", "c", "a/b/c");
 251         test_join(NULL, "/a/b", "c", "/a/b/c");
 252         test_join(NULL, "/", "c", "/c");
 253         test_join(NULL, "/", NULL, "/");
 254 }
 255
 256 #if 0 /// UNNEEDED by elogind
 257 static void test_fsck_exists(void) {
 258         /* Ensure we use a sane default for PATH. */
 259         unsetenv("PATH");
 260
 261         /* fsck.minix is provided by util-linux and will probably exist. */
 262         assert_se(fsck_exists("minix") == 1);
 263
 264         assert_se(fsck_exists("AbCdE") == 0);
 265         assert_se(fsck_exists("/../bin/") == 0);
 266 }
 267
 268 static void test_make_relative(void) {
 269         char *result;
 270
 271         assert_se(path_make_relative("some/relative/path", "/some/path", &result) < 0);
 272         assert_se(path_make_relative("/some/path", "some/relative/path", &result) < 0);
 273         assert_se(path_make_relative("/some/dotdot/../path", "/some/path", &result) < 0);
 274
 275 #define test(from_dir, to_path, expected) {                \
 276                 _cleanup_free_ char *z = NULL;             \
 277                 path_make_relative(from_dir, to_path, &z); \
 278                 assert_se(streq(z, expected));             \
 279         }
 280
 281         test("/", "/", ".");
 282         test("/", "/some/path", "some/path");
 283         test("/some/path", "/some/path", ".");
 284         test("/some/path", "/some/path/in/subdir", "in/subdir");
 285         test("/some/path", "/", "../..");
 286         test("/some/path", "/some/other/path", "../other/path");
 287         test("/some/path/./dot", "/some/further/path", "../../further/path");
 288         test("//extra.//.//./.slashes//./won't////fo.ol///anybody//", "/././/extra././/.slashes////ar.e/.just/././.fine///", "../../../ar.e/.just/.fine");
 289 }
 290 #endif // 0
 291
 292 static void test_strv_resolve(void) {
 293         char tmp_dir[] = "/tmp/test-path-util-XXXXXX";
 294         _cleanup_strv_free_ char **search_dirs = NULL;
 295         _cleanup_strv_free_ char **absolute_dirs = NULL;
 296         char **d;
 297
 298         assert_se(mkdtemp(tmp_dir) != NULL);
 299
 300         search_dirs = strv_new("/dir1", "/dir2", "/dir3", NULL);
 301         assert_se(search_dirs);
 302         STRV_FOREACH(d, search_dirs) {
 303                 char *p = strappend(tmp_dir, *d);
 304                 assert_se(p);
 305                 assert_se(strv_push(&absolute_dirs, p) == 0);
 306         }
 307
 308         assert_se(mkdir(absolute_dirs[0], 0700) == 0);
 309         assert_se(mkdir(absolute_dirs[1], 0700) == 0);
 310         assert_se(symlink("dir2", absolute_dirs[2]) == 0);
 311
 312         path_strv_resolve(search_dirs, tmp_dir);
 313         assert_se(streq(search_dirs[0], "/dir1"));
 314         assert_se(streq(search_dirs[1], "/dir2"));
 315         assert_se(streq(search_dirs[2], "/dir2"));
 316
 317         assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
 318 }
 319
 320 static void test_path_startswith(void) {
 321         const char *p;
 322
 323         p = path_startswith("/foo/bar/barfoo/", "/foo");
 324         assert_se(streq_ptr(p, "bar/barfoo/"));
 325
 326         p = path_startswith("/foo/bar/barfoo/", "/foo/");
 327         assert_se(streq_ptr(p, "bar/barfoo/"));
 328
 329         p = path_startswith("/foo/bar/barfoo/", "/");
 330         assert_se(streq_ptr(p, "foo/bar/barfoo/"));
 331
 332         p = path_startswith("/foo/bar/barfoo/", "////");
 333         assert_se(streq_ptr(p, "foo/bar/barfoo/"));
 334
 335         p = path_startswith("/foo/bar/barfoo/", "/foo//bar/////barfoo///");
 336         assert_se(streq_ptr(p, ""));
 337
 338         p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo////");
 339         assert_se(streq_ptr(p, ""));
 340
 341         p = path_startswith("/foo/bar/barfoo/", "/foo/bar///barfoo/");
 342         assert_se(streq_ptr(p, ""));
 343
 344         p = path_startswith("/foo/bar/barfoo/", "/foo////bar/barfoo/");
 345         assert_se(streq_ptr(p, ""));
 346
 347         p = path_startswith("/foo/bar/barfoo/", "////foo/bar/barfoo/");
 348         assert_se(streq_ptr(p, ""));
 349
 350         p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo");
 351         assert_se(streq_ptr(p, ""));
 352
 353         assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa/"));
 354         assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa"));
 355         assert_se(!path_startswith("/foo/bar/barfoo/", ""));
 356         assert_se(!path_startswith("/foo/bar/barfoo/", "/bar/foo"));
 357         assert_se(!path_startswith("/foo/bar/barfoo/", "/f/b/b/"));
 358 }
 359
 360 static void test_prefix_root_one(const char *r, const char *p, const char *expected) {
 361         _cleanup_free_ char *s = NULL;
 362         const char *t;
 363
 364         assert_se(s = prefix_root(r, p));
 365         assert_se(streq_ptr(s, expected));
 366
 367         t = prefix_roota(r, p);
 368         assert_se(t);
 369         assert_se(streq_ptr(t, expected));
 370 }
 371
 372 static void test_prefix_root(void) {
 373         test_prefix_root_one("/", "/foo", "/foo");
 374         test_prefix_root_one(NULL, "/foo", "/foo");
 375         test_prefix_root_one("", "/foo", "/foo");
 376         test_prefix_root_one("///", "/foo", "/foo");
 377         test_prefix_root_one("/", "////foo", "/foo");
 378         test_prefix_root_one(NULL, "////foo", "/foo");
 379
 380         test_prefix_root_one("/foo", "/bar", "/foo/bar");
 381         test_prefix_root_one("/foo", "bar", "/foo/bar");
 382         test_prefix_root_one("foo", "bar", "foo/bar");
 383         test_prefix_root_one("/foo/", "/bar", "/foo/bar");
 384         test_prefix_root_one("/foo/", "//bar", "/foo/bar");
 385         test_prefix_root_one("/foo///", "//bar", "/foo/bar");
 386 }
 387
 388 static void test_file_in_same_dir(void) {
 389         char *t;
 390
 391         t = file_in_same_dir("/", "a");
 392         assert_se(streq(t, "/a"));
 393         free(t);
 394
 395         t = file_in_same_dir("/", "/a");
 396         assert_se(streq(t, "/a"));
 397         free(t);
 398
 399         t = file_in_same_dir("", "a");
 400         assert_se(streq(t, "a"));
 401         free(t);
 402
 403         t = file_in_same_dir("a/", "a");
 404         assert_se(streq(t, "a/a"));
 405         free(t);
 406
 407         t = file_in_same_dir("bar/foo", "bar");
 408         assert_se(streq(t, "bar/bar"));
 409         free(t);
 410 }
 411
 412 static void test_last_path_component(void) {
 413         assert_se(streq(last_path_component("a/b/c"), "c"));
 414         assert_se(streq(last_path_component("a/b/c/"), "c/"));
 415         assert_se(streq(last_path_component("/"), "/"));
 416         assert_se(streq(last_path_component("//"), "/"));
 417         assert_se(streq(last_path_component("///"), "/"));
 418         assert_se(streq(last_path_component("."), "."));
 419         assert_se(streq(last_path_component("./."), "."));
 420         assert_se(streq(last_path_component("././"), "./"));
 421         assert_se(streq(last_path_component("././/"), ".//"));
 422         assert_se(streq(last_path_component("/foo/a"), "a"));
 423         assert_se(streq(last_path_component("/foo/a/"), "a/"));
 424         assert_se(streq(last_path_component(""), ""));
 425         assert_se(streq(last_path_component("a"), "a"));
 426         assert_se(streq(last_path_component("a/"), "a/"));
 427         assert_se(streq(last_path_component("/a"), "a"));
 428         assert_se(streq(last_path_component("/a/"), "a/"));
 429 }
 430
 431 static void test_filename_is_valid(void) {
 432         char foo[FILENAME_MAX+2];
 433         int i;
 434
 435         assert_se(!filename_is_valid(""));
 436         assert_se(!filename_is_valid("/bar/foo"));
 437         assert_se(!filename_is_valid("/"));
 438         assert_se(!filename_is_valid("."));
 439         assert_se(!filename_is_valid(".."));
 440
 441         for (i=0; i<FILENAME_MAX+1; i++)
 442                 foo[i] = 'a';
 443         foo[FILENAME_MAX+1] = '\0';
 444
 445         assert_se(!filename_is_valid(foo));
 446
 447         assert_se(filename_is_valid("foo_bar-333"));
 448         assert_se(filename_is_valid("o.o"));
 449 }
 450
 451 static void test_hidden_or_backup_file(void) {
 452         assert_se(hidden_or_backup_file(".hidden"));
 453         assert_se(hidden_or_backup_file("..hidden"));
 454         assert_se(!hidden_or_backup_file("hidden."));
 455
 456         assert_se(hidden_or_backup_file("backup~"));
 457         assert_se(hidden_or_backup_file(".backup~"));
 458
 459         assert_se(hidden_or_backup_file("lost+found"));
 460         assert_se(hidden_or_backup_file("aquota.user"));
 461         assert_se(hidden_or_backup_file("aquota.group"));
 462
 463         assert_se(hidden_or_backup_file("test.rpmnew"));
 464         assert_se(hidden_or_backup_file("test.dpkg-old"));
 465         assert_se(hidden_or_backup_file("test.dpkg-remove"));
 466         assert_se(hidden_or_backup_file("test.swp"));
 467
 468         assert_se(!hidden_or_backup_file("test.rpmnew."));
 469         assert_se(!hidden_or_backup_file("test.dpkg-old.foo"));
 470 }
 471
 472 #if 0 /// UNNEEDED by elogind
 473 static void test_systemd_installation_has_version(const char *path) {
 474         int r;
 475         const unsigned versions[] = {0, 231, atoi(PACKAGE_VERSION), 999};
 476         unsigned i;
 477
 478         for (i = 0; i < ELEMENTSOF(versions); i++) {
 479                 r = systemd_installation_has_version(path, versions[i]);
 480                 assert_se(r >= 0);
 481                 log_info("%s has systemd >= %u: %s",
 482                          path ?: "Current installation", versions[i], yes_no(r));
 483         }
 484 }
 485 #endif // 0
 486
 487 static void test_skip_dev_prefix(void) {
 488
 489         assert_se(streq(skip_dev_prefix("/"), "/"));
 490         assert_se(streq(skip_dev_prefix("/dev"), ""));
 491         assert_se(streq(skip_dev_prefix("/dev/"), ""));
 492         assert_se(streq(skip_dev_prefix("/dev/foo"), "foo"));
 493         assert_se(streq(skip_dev_prefix("/dev/foo/bar"), "foo/bar"));
 494         assert_se(streq(skip_dev_prefix("//dev"), ""));
 495         assert_se(streq(skip_dev_prefix("//dev//"), ""));
 496         assert_se(streq(skip_dev_prefix("/dev///foo"), "foo"));
 497         assert_se(streq(skip_dev_prefix("///dev///foo///bar"), "foo///bar"));
 498         assert_se(streq(skip_dev_prefix("//foo"), "//foo"));
 499         assert_se(streq(skip_dev_prefix("foo"), "foo"));
 500 }
 501
 502 static void test_empty_or_root(void) {
 503         assert_se(empty_or_root(NULL));
 504         assert_se(empty_or_root(""));
 505         assert_se(empty_or_root("/"));
 506         assert_se(empty_or_root("//"));
 507         assert_se(empty_or_root("///"));
 508         assert_se(empty_or_root("/////////////////"));
 509         assert_se(!empty_or_root("xxx"));
 510         assert_se(!empty_or_root("/xxx"));
 511         assert_se(!empty_or_root("/xxx/"));
 512         assert_se(!empty_or_root("//yy//"));
 513 }
 514
 515 int main(int argc, char **argv) {
 516         log_set_max_level(LOG_DEBUG);
 517         log_parse_environment();
 518         log_open();
 519
 520         test_path();
 521         test_path_equal_root();
 522         test_find_binary(argv[0]);
 523         test_prefixes();
 524         test_path_join();
 525 #if 0 /// UNNEEDED by elogind
 526         test_fsck_exists();
 527         test_make_relative();
 528 #endif // 0
 529         test_strv_resolve();
 530         test_path_startswith();
 531         test_prefix_root();
 532         test_file_in_same_dir();
 533         test_last_path_component();
 534         test_filename_is_valid();
 535         test_hidden_or_backup_file();
 536         test_skip_dev_prefix();
 537         test_empty_or_root();
 538
 539 #if 0 /// UNNEEDED by elogind
 540         test_systemd_installation_has_version(argv[1]); /* NULL is OK */
 541 #endif // 0
 542
 543         return 0;
 544 }