src/test/test-util.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2010 Lennart Poettering
   7   Copyright 2013 Thomas H.P. Andersen
   8
   9   systemd is free software; you can redistribute it and/or modify it
  10   under the terms of the GNU Lesser General Public License as published by
  11   the Free Software Foundation; either version 2.1 of the License, or
  12   (at your option) any later version.
  13
  14   systemd is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   Lesser General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21 ***/
  22
  23 #include <string.h>
  24 #include <unistd.h>
  25 #include <fcntl.h>
  26 #include <locale.h>
  27 #include <errno.h>
  28 #include <signal.h>
  29 #include <math.h>
  30 #include <sys/wait.h>
  31
  32 #include "util.h"
  33 #include "mkdir.h"
  34 #include "strv.h"
  35 #include "def.h"
  36 #include "fileio.h"
  37 #include "conf-parser.h"
  38 #include "virt.h"
  39
  40 static void test_streq_ptr(void) {
  41         assert_se(streq_ptr(NULL, NULL));
  42         assert_se(!streq_ptr("abc", "cdef"));
  43 }
  44
  45 static void test_align_power2(void) {
  46         unsigned long i, p2;
  47
  48         assert_se(ALIGN_POWER2(0) == 0);
  49         assert_se(ALIGN_POWER2(1) == 1);
  50         assert_se(ALIGN_POWER2(2) == 2);
  51         assert_se(ALIGN_POWER2(3) == 4);
  52         assert_se(ALIGN_POWER2(12) == 16);
  53
  54         assert_se(ALIGN_POWER2(ULONG_MAX) == 0);
  55         assert_se(ALIGN_POWER2(ULONG_MAX - 1) == 0);
  56         assert_se(ALIGN_POWER2(ULONG_MAX - 1024) == 0);
  57         assert_se(ALIGN_POWER2(ULONG_MAX / 2) == ULONG_MAX / 2 + 1);
  58         assert_se(ALIGN_POWER2(ULONG_MAX + 1) == 0);
  59
  60         for (i = 1; i < 131071; ++i) {
  61                 for (p2 = 1; p2 < i; p2 <<= 1)
  62                         /* empty */ ;
  63
  64                 assert_se(ALIGN_POWER2(i) == p2);
  65         }
  66
  67         for (i = ULONG_MAX - 1024; i < ULONG_MAX; ++i) {
  68                 for (p2 = 1; p2 && p2 < i; p2 <<= 1)
  69                         /* empty */ ;
  70
  71                 assert_se(ALIGN_POWER2(i) == p2);
  72         }
  73 }
  74
  75 static void test_max(void) {
  76         static const struct {
  77                 int a;
  78                 int b[CONST_MAX(10, 100)];
  79         } val1 = {
  80                 .a = CONST_MAX(10, 100),
  81         };
  82         int d = 0;
  83
  84         assert_cc(sizeof(val1.b) == sizeof(int) * 100);
  85
  86         /* CONST_MAX returns (void) instead of a value if the passed arguments
  87          * are not of the same type or not constant expressions. */
  88         assert_cc(__builtin_types_compatible_p(typeof(CONST_MAX(1, 10)), int));
  89         assert_cc(__builtin_types_compatible_p(typeof(CONST_MAX(1, 1U)), void));
  90
  91         assert_se(val1.a == 100);
  92         assert_se(MAX(++d, 0) == 1);
  93         assert_se(d == 1);
  94
  95         assert_cc(MAXSIZE(char[3], uint16_t) == 3);
  96         assert_cc(MAXSIZE(char[3], uint32_t) == 4);
  97         assert_cc(MAXSIZE(char, long) == sizeof(long));
  98
  99         assert_se(MAX(-5, 5) == 5);
 100         assert_se(MAX(5, 5) == 5);
 101         assert_se(MAX(MAX(1, MAX(2, MAX(3, 4))), 5) == 5);
 102         assert_se(MAX(MAX(1, MAX(2, MAX(3, 2))), 1) == 3);
 103         assert_se(MAX(MIN(1, MIN(2, MIN(3, 4))), 5) == 5);
 104         assert_se(MAX(MAX(1, MIN(2, MIN(3, 2))), 1) == 2);
 105         assert_se(LESS_BY(8, 4) == 4);
 106         assert_se(LESS_BY(8, 8) == 0);
 107         assert_se(LESS_BY(4, 8) == 0);
 108         assert_se(LESS_BY(16, LESS_BY(8, 4)) == 12);
 109         assert_se(LESS_BY(4, LESS_BY(8, 4)) == 0);
 110         assert_se(CLAMP(-5, 0, 1) == 0);
 111         assert_se(CLAMP(5, 0, 1) == 1);
 112         assert_se(CLAMP(5, -10, 1) == 1);
 113         assert_se(CLAMP(5, -10, 10) == 5);
 114         assert_se(CLAMP(CLAMP(0, -10, 10), CLAMP(-5, 10, 20), CLAMP(100, -5, 20)) == 10);
 115 }
 116
 117 static void test_container_of(void) {
 118         struct mytype {
 119                 uint8_t pad1[3];
 120                 uint64_t v1;
 121                 uint8_t pad2[2];
 122                 uint32_t v2;
 123         } _packed_ myval = { };
 124
 125         assert_cc(sizeof(myval) == 17);
 126         assert_se(container_of(&myval.v1, struct mytype, v1) == &myval);
 127         assert_se(container_of(&myval.v2, struct mytype, v2) == &myval);
 128         assert_se(container_of(&container_of(&myval.v2,
 129                                              struct mytype,
 130                                              v2)->v1,
 131                                struct mytype,
 132                                v1) == &myval);
 133 }
 134
 135 static void test_alloca(void) {
 136         static const uint8_t zero[997] = { };
 137         char *t;
 138
 139         t = alloca_align(17, 512);
 140         assert_se(!((uintptr_t)t & 0xff));
 141         memzero(t, 17);
 142
 143         t = alloca0_align(997, 1024);
 144         assert_se(!((uintptr_t)t & 0x1ff));
 145         assert_se(!memcmp(t, zero, 997));
 146 }
 147
 148 static void test_div_round_up(void) {
 149         int div;
 150
 151         /* basic tests */
 152         assert_se(DIV_ROUND_UP(0, 8) == 0);
 153         assert_se(DIV_ROUND_UP(1, 8) == 1);
 154         assert_se(DIV_ROUND_UP(8, 8) == 1);
 155         assert_se(DIV_ROUND_UP(12, 8) == 2);
 156         assert_se(DIV_ROUND_UP(16, 8) == 2);
 157
 158         /* test multiple evaluation */
 159         div = 0;
 160         assert_se(DIV_ROUND_UP(div++, 8) == 0 && div == 1);
 161         assert_se(DIV_ROUND_UP(++div, 8) == 1 && div == 2);
 162         assert_se(DIV_ROUND_UP(8, div++) == 4 && div == 3);
 163         assert_se(DIV_ROUND_UP(8, ++div) == 2 && div == 4);
 164
 165         /* overflow test with exact division */
 166         assert_se(sizeof(0U) == 4);
 167         assert_se(0xfffffffaU % 10U == 0U);
 168         assert_se(0xfffffffaU / 10U == 429496729U);
 169         assert_se(DIV_ROUND_UP(0xfffffffaU, 10U) == 429496729U);
 170         assert_se((0xfffffffaU + 10U - 1U) / 10U == 0U);
 171         assert_se(0xfffffffaU / 10U + !!(0xfffffffaU % 10U) == 429496729U);
 172
 173         /* overflow test with rounded division */
 174         assert_se(0xfffffffdU % 10U == 3U);
 175         assert_se(0xfffffffdU / 10U == 429496729U);
 176         assert_se(DIV_ROUND_UP(0xfffffffdU, 10U) == 429496730U);
 177         assert_se((0xfffffffdU + 10U - 1U) / 10U == 0U);
 178         assert_se(0xfffffffdU / 10U + !!(0xfffffffdU % 10U) == 429496730U);
 179 }
 180
 181 static void test_first_word(void) {
 182         assert_se(first_word("Hello", ""));
 183         assert_se(first_word("Hello", "Hello"));
 184         assert_se(first_word("Hello world", "Hello"));
 185         assert_se(first_word("Hello\tworld", "Hello"));
 186         assert_se(first_word("Hello\nworld", "Hello"));
 187         assert_se(first_word("Hello\rworld", "Hello"));
 188         assert_se(first_word("Hello ", "Hello"));
 189
 190         assert_se(!first_word("Hello", "Hellooo"));
 191         assert_se(!first_word("Hello", "xxxxx"));
 192         assert_se(!first_word("Hellooo", "Hello"));
 193 }
 194
 195 static void test_close_many(void) {
 196         int fds[3];
 197         char name0[] = "/tmp/test-close-many.XXXXXX";
 198         char name1[] = "/tmp/test-close-many.XXXXXX";
 199         char name2[] = "/tmp/test-close-many.XXXXXX";
 200
 201         fds[0] = mkostemp_safe(name0, O_RDWR|O_CLOEXEC);
 202         fds[1] = mkostemp_safe(name1, O_RDWR|O_CLOEXEC);
 203         fds[2] = mkostemp_safe(name2, O_RDWR|O_CLOEXEC);
 204
 205         close_many(fds, 2);
 206
 207         assert_se(fcntl(fds[0], F_GETFD) == -1);
 208         assert_se(fcntl(fds[1], F_GETFD) == -1);
 209         assert_se(fcntl(fds[2], F_GETFD) >= 0);
 210
 211         safe_close(fds[2]);
 212
 213         unlink(name0);
 214         unlink(name1);
 215         unlink(name2);
 216 }
 217
 218 static void test_parse_boolean(void) {
 219         assert_se(parse_boolean("1") == 1);
 220         assert_se(parse_boolean("y") == 1);
 221         assert_se(parse_boolean("Y") == 1);
 222         assert_se(parse_boolean("yes") == 1);
 223         assert_se(parse_boolean("YES") == 1);
 224         assert_se(parse_boolean("true") == 1);
 225         assert_se(parse_boolean("TRUE") == 1);
 226         assert_se(parse_boolean("on") == 1);
 227         assert_se(parse_boolean("ON") == 1);
 228
 229         assert_se(parse_boolean("0") == 0);
 230         assert_se(parse_boolean("n") == 0);
 231         assert_se(parse_boolean("N") == 0);
 232         assert_se(parse_boolean("no") == 0);
 233         assert_se(parse_boolean("NO") == 0);
 234         assert_se(parse_boolean("false") == 0);
 235         assert_se(parse_boolean("FALSE") == 0);
 236         assert_se(parse_boolean("off") == 0);
 237         assert_se(parse_boolean("OFF") == 0);
 238
 239         assert_se(parse_boolean("garbage") < 0);
 240         assert_se(parse_boolean("") < 0);
 241         assert_se(parse_boolean("full") < 0);
 242 }
 243
 244 static void test_parse_pid(void) {
 245         int r;
 246         pid_t pid;
 247
 248         r = parse_pid("100", &pid);
 249         assert_se(r == 0);
 250         assert_se(pid == 100);
 251
 252         r = parse_pid("0x7FFFFFFF", &pid);
 253         assert_se(r == 0);
 254         assert_se(pid == 2147483647);
 255
 256         pid = 65; /* pid is left unchanged on ERANGE. Set to known arbitrary value. */
 257         r = parse_pid("0", &pid);
 258         assert_se(r == -ERANGE);
 259         assert_se(pid == 65);
 260
 261         pid = 65; /* pid is left unchanged on ERANGE. Set to known arbitrary value. */
 262         r = parse_pid("-100", &pid);
 263         assert_se(r == -ERANGE);
 264         assert_se(pid == 65);
 265
 266         pid = 65; /* pid is left unchanged on ERANGE. Set to known arbitrary value. */
 267         r = parse_pid("0xFFFFFFFFFFFFFFFFF", &pid);
 268         assert_se(r == -ERANGE);
 269         assert_se(pid == 65);
 270 }
 271
 272 static void test_parse_uid(void) {
 273         int r;
 274         uid_t uid;
 275
 276         r = parse_uid("100", &uid);
 277         assert_se(r == 0);
 278         assert_se(uid == 100);
 279 }
 280
 281 static void test_safe_atolli(void) {
 282         int r;
 283         long long l;
 284
 285         r = safe_atolli("12345", &l);
 286         assert_se(r == 0);
 287         assert_se(l == 12345);
 288
 289         r = safe_atolli("junk", &l);
 290         assert_se(r == -EINVAL);
 291 }
 292
 293 static void test_safe_atod(void) {
 294         int r;
 295         double d;
 296         char *e;
 297
 298         r = safe_atod("junk", &d);
 299         assert_se(r == -EINVAL);
 300
 301         r = safe_atod("0.2244", &d);
 302         assert_se(r == 0);
 303         assert_se(fabs(d - 0.2244) < 0.000001);
 304
 305         r = safe_atod("0,5", &d);
 306         assert_se(r == -EINVAL);
 307
 308         errno = 0;
 309         strtod("0,5", &e);
 310         assert_se(*e == ',');
 311
 312         /* Check if this really is locale independent */
 313         if (setlocale(LC_NUMERIC, "de_DE.utf8")) {
 314
 315                 r = safe_atod("0.2244", &d);
 316                 assert_se(r == 0);
 317                 assert_se(fabs(d - 0.2244) < 0.000001);
 318
 319                 r = safe_atod("0,5", &d);
 320                 assert_se(r == -EINVAL);
 321
 322                 errno = 0;
 323                 assert_se(fabs(strtod("0,5", &e) - 0.5) < 0.00001);
 324         }
 325
 326         /* And check again, reset */
 327         assert_se(setlocale(LC_NUMERIC, "C"));
 328
 329         r = safe_atod("0.2244", &d);
 330         assert_se(r == 0);
 331         assert_se(fabs(d - 0.2244) < 0.000001);
 332
 333         r = safe_atod("0,5", &d);
 334         assert_se(r == -EINVAL);
 335
 336         errno = 0;
 337         strtod("0,5", &e);
 338         assert_se(*e == ',');
 339 }
 340
 341 static void test_strappend(void) {
 342         _cleanup_free_ char *t1, *t2, *t3, *t4;
 343
 344         t1 = strappend(NULL, NULL);
 345         assert_se(streq(t1, ""));
 346
 347         t2 = strappend(NULL, "suf");
 348         assert_se(streq(t2, "suf"));
 349
 350         t3 = strappend("pre", NULL);
 351         assert_se(streq(t3, "pre"));
 352
 353         t4 = strappend("pre", "suf");
 354         assert_se(streq(t4, "presuf"));
 355 }
 356
 357 static void test_strstrip(void) {
 358         char *r;
 359         char input[] = "   hello, waldo.   ";
 360
 361         r = strstrip(input);
 362         assert_se(streq(r, "hello, waldo."));
 363 }
 364
 365 static void test_delete_chars(void) {
 366         char *r;
 367         char input[] = "   hello, waldo.   abc";
 368
 369         r = delete_chars(input, WHITESPACE);
 370         assert_se(streq(r, "hello,waldo.abc"));
 371 }
 372
 373 static void test_in_charset(void) {
 374         assert_se(in_charset("dddaaabbbcccc", "abcd"));
 375         assert_se(!in_charset("dddaaabbbcccc", "abc f"));
 376 }
 377
 378 static void test_hexchar(void) {
 379         assert_se(hexchar(0xa) == 'a');
 380         assert_se(hexchar(0x0) == '0');
 381 }
 382
 383 static void test_unhexchar(void) {
 384         assert_se(unhexchar('a') == 0xA);
 385         assert_se(unhexchar('A') == 0xA);
 386         assert_se(unhexchar('0') == 0x0);
 387 }
 388
 389 static void test_octchar(void) {
 390         assert_se(octchar(00) == '0');
 391         assert_se(octchar(07) == '7');
 392 }
 393
 394 static void test_unoctchar(void) {
 395         assert_se(unoctchar('0') == 00);
 396         assert_se(unoctchar('7') == 07);
 397 }
 398
 399 static void test_decchar(void) {
 400         assert_se(decchar(0) == '0');
 401         assert_se(decchar(9) == '9');
 402 }
 403
 404 static void test_undecchar(void) {
 405         assert_se(undecchar('0') == 0);
 406         assert_se(undecchar('9') == 9);
 407 }
 408
 409 static void test_cescape(void) {
 410         _cleanup_free_ char *escaped;
 411
 412         assert_se(escaped = cescape("abc\\\"\b\f\n\r\t\v\a\003\177\234\313"));
 413         assert_se(streq(escaped, "abc\\\\\\\"\\b\\f\\n\\r\\t\\v\\a\\003\\177\\234\\313"));
 414 }
 415
 416 static void test_cunescape(void) {
 417         _cleanup_free_ char *unescaped;
 418
 419         unescaped = cunescape("abc\\\\\\\"\\b\\f\\a\\n\\r\\t\\v\\003\\177\\234\\313\\000\\x00");
 420         assert_se(streq_ptr(unescaped, "abc\\\"\b\f\a\n\r\t\v\003\177\234\313\\000\\x00"));
 421
 422         /* incomplete sequences */
 423         unescaped = cunescape("\\x0");
 424         assert_se(streq_ptr(unescaped, "\\x0"));
 425
 426         unescaped = cunescape("\\x");
 427         assert_se(streq_ptr(unescaped, "\\x"));
 428
 429         unescaped = cunescape("\\");
 430         assert_se(streq_ptr(unescaped, "\\"));
 431
 432         unescaped = cunescape("\\11");
 433         assert_se(streq_ptr(unescaped, "\\11"));
 434
 435         unescaped = cunescape("\\1");
 436         assert_se(streq_ptr(unescaped, "\\1"));
 437 }
 438
 439 static void test_foreach_word(void) {
 440         const char *word, *state;
 441         size_t l;
 442         int i = 0;
 443         const char test[] = "test abc d\te   f   ";
 444         const char * const expected[] = {
 445                 "test",
 446                 "abc",
 447                 "d",
 448                 "e",
 449                 "f",
 450                 "",
 451                 NULL
 452         };
 453
 454         FOREACH_WORD(word, l, test, state)
 455                 assert_se(strneq(expected[i++], word, l));
 456 }
 457
 458 static void check(const char *test, char** expected, bool trailing) {
 459         const char *word, *state;
 460         size_t l;
 461         int i = 0;
 462
 463         printf("<<<%s>>>\n", test);
 464         FOREACH_WORD_QUOTED(word, l, test, state) {
 465                 _cleanup_free_ char *t = NULL;
 466
 467                 assert_se(t = strndup(word, l));
 468                 assert_se(strneq(expected[i++], word, l));
 469                 printf("<%s>\n", t);
 470         }
 471         printf("<<<%s>>>\n", state);
 472         assert_se(expected[i] == NULL);
 473         assert_se(isempty(state) == !trailing);
 474 }
 475
 476 static void test_foreach_word_quoted(void) {
 477         check("test a b c 'd' e '' '' hhh '' '' \"a b c\"",
 478               STRV_MAKE("test",
 479                         "a",
 480                         "b",
 481                         "c",
 482                         "d",
 483                         "e",
 484                         "",
 485                         "",
 486                         "hhh",
 487                         "",
 488                         "",
 489                         "a b c"),
 490               false);
 491
 492         check("test \"xxx",
 493               STRV_MAKE("test"),
 494               true);
 495
 496         check("test\\",
 497               STRV_MAKE_EMPTY,
 498               true);
 499 }
 500
 501 static void test_default_term_for_tty(void) {
 502         puts(default_term_for_tty("/dev/tty23"));
 503         puts(default_term_for_tty("/dev/ttyS23"));
 504         puts(default_term_for_tty("/dev/tty0"));
 505         puts(default_term_for_tty("/dev/pty0"));
 506         puts(default_term_for_tty("/dev/pts/0"));
 507         puts(default_term_for_tty("/dev/console"));
 508         puts(default_term_for_tty("tty23"));
 509         puts(default_term_for_tty("ttyS23"));
 510         puts(default_term_for_tty("tty0"));
 511         puts(default_term_for_tty("pty0"));
 512         puts(default_term_for_tty("pts/0"));
 513         puts(default_term_for_tty("console"));
 514 }
 515
 516 static void test_memdup_multiply(void) {
 517         int org[] = {1, 2, 3};
 518         int *dup;
 519
 520         dup = (int*)memdup_multiply(org, sizeof(int), 3);
 521
 522         assert_se(dup);
 523         assert_se(dup[0] == 1);
 524         assert_se(dup[1] == 2);
 525         assert_se(dup[2] == 3);
 526         free(dup);
 527 }
 528
 529 static void test_hostname_is_valid(void) {
 530         assert_se(hostname_is_valid("foobar"));
 531         assert_se(hostname_is_valid("foobar.com"));
 532         assert_se(!hostname_is_valid("fööbar"));
 533         assert_se(!hostname_is_valid(""));
 534         assert_se(!hostname_is_valid("."));
 535         assert_se(!hostname_is_valid(".."));
 536         assert_se(!hostname_is_valid("foobar."));
 537         assert_se(!hostname_is_valid(".foobar"));
 538         assert_se(!hostname_is_valid("foo..bar"));
 539         assert_se(!hostname_is_valid("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"));
 540 }
 541
 542 static void test_u64log2(void) {
 543         assert_se(u64log2(0) == 0);
 544         assert_se(u64log2(8) == 3);
 545         assert_se(u64log2(9) == 3);
 546         assert_se(u64log2(15) == 3);
 547         assert_se(u64log2(16) == 4);
 548         assert_se(u64log2(1024*1024) == 20);
 549         assert_se(u64log2(1024*1024+5) == 20);
 550 }
 551
 552 static void test_get_process_comm(void) {
 553         struct stat st;
 554         _cleanup_free_ char *a = NULL, *c = NULL, *d = NULL, *f = NULL, *i = NULL, *cwd = NULL, *root = NULL;
 555         _cleanup_free_ char *env = NULL;
 556         pid_t e;
 557         uid_t u;
 558         gid_t g;
 559         dev_t h;
 560         int r;
 561         pid_t me;
 562
 563         if (stat("/proc/1/comm", &st) == 0) {
 564                 assert_se(get_process_comm(1, &a) >= 0);
 565                 log_info("pid1 comm: '%s'", a);
 566         } else {
 567                 log_warning("/proc/1/comm does not exist.");
 568         }
 569
 570         assert_se(get_process_cmdline(1, 0, true, &c) >= 0);
 571         log_info("pid1 cmdline: '%s'", c);
 572
 573         assert_se(get_process_cmdline(1, 8, false, &d) >= 0);
 574         log_info("pid1 cmdline truncated: '%s'", d);
 575
 576         assert_se(get_parent_of_pid(1, &e) >= 0);
 577         log_info("pid1 ppid: "PID_FMT, e);
 578         assert_se(e == 0);
 579
 580         assert_se(is_kernel_thread(1) == 0);
 581
 582         r = get_process_exe(1, &f);
 583         assert_se(r >= 0 || r == -EACCES);
 584         log_info("pid1 exe: '%s'", strna(f));
 585
 586         assert_se(get_process_uid(1, &u) == 0);
 587         log_info("pid1 uid: "UID_FMT, u);
 588         assert_se(u == 0);
 589
 590         assert_se(get_process_gid(1, &g) == 0);
 591         log_info("pid1 gid: "GID_FMT, g);
 592         assert_se(g == 0);
 593
 594         me = getpid();
 595
 596         r = get_process_cwd(me, &cwd);
 597         assert_se(r >= 0 || r == -EACCES);
 598         log_info("pid1 cwd: '%s'", cwd);
 599
 600         r = get_process_root(me, &root);
 601         assert_se(r >= 0 || r == -EACCES);
 602         log_info("pid1 root: '%s'", root);
 603
 604         r = get_process_environ(me, &env);
 605         assert_se(r >= 0 || r == -EACCES);
 606         log_info("self strlen(environ): '%zu'", strlen(env));
 607
 608         if (!detect_container(NULL))
 609                 assert_se(get_ctty_devnr(1, &h) == -ENOENT);
 610
 611         getenv_for_pid(1, "PATH", &i);
 612         log_info("pid1 $PATH: '%s'", strna(i));
 613 }
 614
 615 static void test_protect_errno(void) {
 616         errno = 12;
 617         {
 618                 PROTECT_ERRNO;
 619                 errno = 11;
 620         }
 621         assert_se(errno == 12);
 622 }
 623
 624 static void test_parse_size(void) {
 625         off_t bytes;
 626
 627         assert_se(parse_size("111", 1024, &bytes) == 0);
 628         assert_se(bytes == 111);
 629
 630         assert_se(parse_size("111.4", 1024, &bytes) == 0);
 631         assert_se(bytes == 111);
 632
 633         assert_se(parse_size(" 112 B", 1024, &bytes) == 0);
 634         assert_se(bytes == 112);
 635
 636         assert_se(parse_size(" 112.6 B", 1024, &bytes) == 0);
 637         assert_se(bytes == 112);
 638
 639         assert_se(parse_size("3.5 K", 1024, &bytes) == 0);
 640         assert_se(bytes == 3*1024 + 512);
 641
 642         assert_se(parse_size("3. K", 1024, &bytes) == 0);
 643         assert_se(bytes == 3*1024);
 644
 645         assert_se(parse_size("3.0 K", 1024, &bytes) == 0);
 646         assert_se(bytes == 3*1024);
 647
 648         assert_se(parse_size("3. 0 K", 1024, &bytes) == -EINVAL);
 649
 650         assert_se(parse_size(" 4 M 11.5K", 1024, &bytes) == 0);
 651         assert_se(bytes == 4*1024*1024 + 11 * 1024 + 512);
 652
 653         assert_se(parse_size("3B3.5G", 1024, &bytes) == -EINVAL);
 654
 655         assert_se(parse_size("3.5G3B", 1024, &bytes) == 0);
 656         assert_se(bytes == 3ULL*1024*1024*1024 + 512*1024*1024 + 3);
 657
 658         assert_se(parse_size("3.5G 4B", 1024, &bytes) == 0);
 659         assert_se(bytes == 3ULL*1024*1024*1024 + 512*1024*1024 + 4);
 660
 661         assert_se(parse_size("3B3G4T", 1024, &bytes) == -EINVAL);
 662
 663         assert_se(parse_size("4T3G3B", 1024, &bytes) == 0);
 664         assert_se(bytes == (4ULL*1024 + 3)*1024*1024*1024 + 3);
 665
 666         assert_se(parse_size(" 4 T 3 G 3 B", 1024, &bytes) == 0);
 667         assert_se(bytes == (4ULL*1024 + 3)*1024*1024*1024 + 3);
 668
 669         assert_se(parse_size("12P", 1024, &bytes) == 0);
 670         assert_se(bytes == 12ULL * 1024*1024*1024*1024*1024);
 671
 672         assert_se(parse_size("12P12P", 1024, &bytes) == -EINVAL);
 673
 674         assert_se(parse_size("3E 2P", 1024, &bytes) == 0);
 675         assert_se(bytes == (3 * 1024 + 2ULL) * 1024*1024*1024*1024*1024);
 676
 677         assert_se(parse_size("12X", 1024, &bytes) == -EINVAL);
 678
 679         assert_se(parse_size("12.5X", 1024, &bytes) == -EINVAL);
 680
 681         assert_se(parse_size("12.5e3", 1024, &bytes) == -EINVAL);
 682
 683         assert_se(parse_size("1024E", 1024, &bytes) == -ERANGE);
 684         assert_se(parse_size("-1", 1024, &bytes) == -ERANGE);
 685         assert_se(parse_size("-1024E", 1024, &bytes) == -ERANGE);
 686
 687         assert_se(parse_size("-1024P", 1024, &bytes) == -ERANGE);
 688
 689         assert_se(parse_size("-10B 20K", 1024, &bytes) == -ERANGE);
 690 }
 691
 692 static void test_config_parse_iec_off(void) {
 693         off_t offset = 0;
 694         assert_se(config_parse_iec_off(NULL, "/this/file", 11, "Section", 22, "Size", 0, "4M", &offset, NULL) == 0);
 695         assert_se(offset == 4 * 1024 * 1024);
 696
 697         assert_se(config_parse_iec_off(NULL, "/this/file", 11, "Section", 22, "Size", 0, "4.5M", &offset, NULL) == 0);
 698 }
 699
 700 static void test_strextend(void) {
 701         _cleanup_free_ char *str = strdup("0123");
 702         strextend(&str, "456", "78", "9", NULL);
 703         assert_se(streq(str, "0123456789"));
 704 }
 705
 706 static void test_strrep(void) {
 707         _cleanup_free_ char *one, *three, *zero;
 708         one = strrep("waldo", 1);
 709         three = strrep("waldo", 3);
 710         zero = strrep("waldo", 0);
 711
 712         assert_se(streq(one, "waldo"));
 713         assert_se(streq(three, "waldowaldowaldo"));
 714         assert_se(streq(zero, ""));
 715 }
 716
 717 static void test_split_pair(void) {
 718         _cleanup_free_ char *a = NULL, *b = NULL;
 719
 720         assert_se(split_pair("", "", &a, &b) == -EINVAL);
 721         assert_se(split_pair("foo=bar", "", &a, &b) == -EINVAL);
 722         assert_se(split_pair("", "=", &a, &b) == -EINVAL);
 723         assert_se(split_pair("foo=bar", "=", &a, &b) >= 0);
 724         assert_se(streq(a, "foo"));
 725         assert_se(streq(b, "bar"));
 726         free(a);
 727         free(b);
 728         assert_se(split_pair("==", "==", &a, &b) >= 0);
 729         assert_se(streq(a, ""));
 730         assert_se(streq(b, ""));
 731         free(a);
 732         free(b);
 733
 734         assert_se(split_pair("===", "==", &a, &b) >= 0);
 735         assert_se(streq(a, ""));
 736         assert_se(streq(b, "="));
 737 }
 738
 739 static void test_fstab_node_to_udev_node(void) {
 740         char *n;
 741
 742         n = fstab_node_to_udev_node("LABEL=applé/jack");
 743         puts(n);
 744         assert_se(streq(n, "/dev/disk/by-label/applé\\x2fjack"));
 745         free(n);
 746
 747         n = fstab_node_to_udev_node("PARTLABEL=pinkié pie");
 748         puts(n);
 749         assert_se(streq(n, "/dev/disk/by-partlabel/pinkié\\x20pie"));
 750         free(n);
 751
 752         n = fstab_node_to_udev_node("UUID=037b9d94-148e-4ee4-8d38-67bfe15bb535");
 753         puts(n);
 754         assert_se(streq(n, "/dev/disk/by-uuid/037b9d94-148e-4ee4-8d38-67bfe15bb535"));
 755         free(n);
 756
 757         n = fstab_node_to_udev_node("PARTUUID=037b9d94-148e-4ee4-8d38-67bfe15bb535");
 758         puts(n);
 759         assert_se(streq(n, "/dev/disk/by-partuuid/037b9d94-148e-4ee4-8d38-67bfe15bb535"));
 760         free(n);
 761
 762         n = fstab_node_to_udev_node("PONIES=awesome");
 763         puts(n);
 764         assert_se(streq(n, "PONIES=awesome"));
 765         free(n);
 766
 767         n = fstab_node_to_udev_node("/dev/xda1");
 768         puts(n);
 769         assert_se(streq(n, "/dev/xda1"));
 770         free(n);
 771 }
 772
 773 static void test_get_files_in_directory(void) {
 774         _cleanup_strv_free_ char **l = NULL, **t = NULL;
 775
 776         assert_se(get_files_in_directory("/tmp", &l) >= 0);
 777         assert_se(get_files_in_directory(".", &t) >= 0);
 778         assert_se(get_files_in_directory(".", NULL) >= 0);
 779 }
 780
 781 static void test_in_set(void) {
 782         assert_se(IN_SET(1, 1));
 783         assert_se(IN_SET(1, 1, 2, 3, 4));
 784         assert_se(IN_SET(2, 1, 2, 3, 4));
 785         assert_se(IN_SET(3, 1, 2, 3, 4));
 786         assert_se(IN_SET(4, 1, 2, 3, 4));
 787         assert_se(!IN_SET(0, 1));
 788         assert_se(!IN_SET(0, 1, 2, 3, 4));
 789 }
 790
 791 static void test_writing_tmpfile(void) {
 792         char name[] = "/tmp/test-systemd_writing_tmpfile.XXXXXX";
 793         _cleanup_free_ char *contents = NULL;
 794         size_t size;
 795         int fd, r;
 796         struct iovec iov[3];
 797
 798         IOVEC_SET_STRING(iov[0], "abc\n");
 799         IOVEC_SET_STRING(iov[1], ALPHANUMERICAL "\n");
 800         IOVEC_SET_STRING(iov[2], "");
 801
 802         fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
 803         printf("tmpfile: %s", name);
 804
 805         r = writev(fd, iov, 3);
 806         assert_se(r >= 0);
 807
 808         r = read_full_file(name, &contents, &size);
 809         assert_se(r == 0);
 810         printf("contents: %s", contents);
 811         assert_se(streq(contents, "abc\n" ALPHANUMERICAL "\n"));
 812
 813         unlink(name);
 814 }
 815
 816 static void test_hexdump(void) {
 817         uint8_t data[146];
 818         unsigned i;
 819
 820         hexdump(stdout, NULL, 0);
 821         hexdump(stdout, "", 0);
 822         hexdump(stdout, "", 1);
 823         hexdump(stdout, "x", 1);
 824         hexdump(stdout, "x", 2);
 825         hexdump(stdout, "foobar", 7);
 826         hexdump(stdout, "f\nobar", 7);
 827         hexdump(stdout, "xxxxxxxxxxxxxxxxxxxxyz", 23);
 828
 829         for (i = 0; i < ELEMENTSOF(data); i++)
 830                 data[i] = i*2;
 831
 832         hexdump(stdout, data, sizeof(data));
 833 }
 834
 835 static void test_log2i(void) {
 836         assert_se(log2i(1) == 0);
 837         assert_se(log2i(2) == 1);
 838         assert_se(log2i(3) == 1);
 839         assert_se(log2i(4) == 2);
 840         assert_se(log2i(32) == 5);
 841         assert_se(log2i(33) == 5);
 842         assert_se(log2i(63) == 5);
 843         assert_se(log2i(INT_MAX) == sizeof(int)*8-2);
 844 }
 845
 846 static void test_foreach_string(void) {
 847         const char * const t[] = {
 848                 "foo",
 849                 "bar",
 850                 "waldo",
 851                 NULL
 852         };
 853         const char *x;
 854         unsigned i = 0;
 855
 856         FOREACH_STRING(x, "foo", "bar", "waldo")
 857                 assert_se(streq_ptr(t[i++], x));
 858
 859         assert_se(i == 3);
 860
 861         FOREACH_STRING(x, "zzz")
 862                 assert_se(streq(x, "zzz"));
 863 }
 864
 865 static void test_filename_is_valid(void) {
 866         char foo[FILENAME_MAX+2];
 867         int i;
 868
 869         assert_se(!filename_is_valid(""));
 870         assert_se(!filename_is_valid("/bar/foo"));
 871         assert_se(!filename_is_valid("/"));
 872         assert_se(!filename_is_valid("."));
 873         assert_se(!filename_is_valid(".."));
 874
 875         for (i=0; i<FILENAME_MAX+1; i++)
 876                 foo[i] = 'a';
 877         foo[FILENAME_MAX+1] = '\0';
 878
 879         assert_se(!filename_is_valid(foo));
 880
 881         assert_se(filename_is_valid("foo_bar-333"));
 882         assert_se(filename_is_valid("o.o"));
 883 }
 884
 885 static void test_string_has_cc(void) {
 886         assert_se(string_has_cc("abc\1", NULL));
 887         assert_se(string_has_cc("abc\x7f", NULL));
 888         assert_se(string_has_cc("abc\x7f", NULL));
 889         assert_se(string_has_cc("abc\t\x7f", "\t"));
 890         assert_se(string_has_cc("abc\t\x7f", "\t"));
 891         assert_se(string_has_cc("\x7f", "\t"));
 892         assert_se(string_has_cc("\x7f", "\t\a"));
 893
 894         assert_se(!string_has_cc("abc\t\t", "\t"));
 895         assert_se(!string_has_cc("abc\t\t\a", "\t\a"));
 896         assert_se(!string_has_cc("a\ab\tc", "\t\a"));
 897 }
 898
 899 static void test_ascii_strlower(void) {
 900         char a[] = "AabBcC Jk Ii Od LKJJJ kkd LK";
 901         assert_se(streq(ascii_strlower(a), "aabbcc jk ii od lkjjj kkd lk"));
 902 }
 903
 904 static void test_files_same(void) {
 905         _cleanup_close_ int fd = -1;
 906         char name[] = "/tmp/test-files_same.XXXXXX";
 907         char name_alias[] = "/tmp/test-files_same.alias";
 908
 909         fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
 910         assert_se(fd >= 0);
 911         assert_se(symlink(name, name_alias) >= 0);
 912
 913         assert_se(files_same(name, name));
 914         assert_se(files_same(name, name_alias));
 915
 916         unlink(name);
 917         unlink(name_alias);
 918 }
 919
 920 static void test_is_valid_documentation_url(void) {
 921         assert_se(documentation_url_is_valid("http://www.freedesktop.org/wiki/Software/systemd"));
 922         assert_se(documentation_url_is_valid("https://www.kernel.org/doc/Documentation/binfmt_misc.txt"));
 923         assert_se(documentation_url_is_valid("file:/foo/foo"));
 924         assert_se(documentation_url_is_valid("man:systemd.special(7)"));
 925         assert_se(documentation_url_is_valid("info:bar"));
 926
 927         assert_se(!documentation_url_is_valid("foo:"));
 928         assert_se(!documentation_url_is_valid("info:"));
 929         assert_se(!documentation_url_is_valid(""));
 930 }
 931
 932 static void test_file_in_same_dir(void) {
 933         char *t;
 934
 935         t = file_in_same_dir("/", "a");
 936         assert_se(streq(t, "/a"));
 937         free(t);
 938
 939         t = file_in_same_dir("/", "/a");
 940         assert_se(streq(t, "/a"));
 941         free(t);
 942
 943         t = file_in_same_dir("", "a");
 944         assert_se(streq(t, "a"));
 945         free(t);
 946
 947         t = file_in_same_dir("a/", "a");
 948         assert_se(streq(t, "a/a"));
 949         free(t);
 950
 951         t = file_in_same_dir("bar/foo", "bar");
 952         assert_se(streq(t, "bar/bar"));
 953         free(t);
 954 }
 955
 956 static void test_endswith(void) {
 957         assert_se(endswith("foobar", "bar"));
 958         assert_se(endswith("foobar", ""));
 959         assert_se(endswith("foobar", "foobar"));
 960         assert_se(endswith("", ""));
 961
 962         assert_se(!endswith("foobar", "foo"));
 963         assert_se(!endswith("foobar", "foobarfoofoo"));
 964 }
 965
 966 static void test_close_nointr(void) {
 967         char name[] = "/tmp/test-test-close_nointr.XXXXXX";
 968         int fd;
 969
 970         fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
 971         assert_se(fd >= 0);
 972         assert_se(close_nointr(fd) >= 0);
 973         assert_se(close_nointr(fd) < 0);
 974
 975         unlink(name);
 976 }
 977
 978
 979 static void test_unlink_noerrno(void) {
 980         char name[] = "/tmp/test-close_nointr.XXXXXX";
 981         int fd;
 982
 983         fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
 984         assert_se(fd >= 0);
 985         assert_se(close_nointr(fd) >= 0);
 986
 987         {
 988                 PROTECT_ERRNO;
 989                 errno = -42;
 990                 assert_se(unlink_noerrno(name) >= 0);
 991                 assert_se(errno == -42);
 992                 assert_se(unlink_noerrno(name) < 0);
 993                 assert_se(errno == -42);
 994         }
 995 }
 996
 997 static void test_readlink_and_make_absolute(void) {
 998         char tempdir[] = "/tmp/test-readlink_and_make_absolute";
 999         char name[] = "/tmp/test-readlink_and_make_absolute/original";
1000         char name2[] = "test-readlink_and_make_absolute/original";
1001         char name_alias[] = "/tmp/test-readlink_and_make_absolute-alias";
1002         char *r = NULL;
1003
1004         assert_se(mkdir_safe(tempdir, 0755, getuid(), getgid()) >= 0);
1005         assert_se(touch(name) >= 0);
1006
1007         assert_se(symlink(name, name_alias) >= 0);
1008         assert_se(readlink_and_make_absolute(name_alias, &r) >= 0);
1009         assert_se(streq(r, name));
1010         free(r);
1011         assert_se(unlink(name_alias) >= 0);
1012
1013         assert_se(chdir(tempdir) >= 0);
1014         assert_se(symlink(name2, name_alias) >= 0);
1015         assert_se(readlink_and_make_absolute(name_alias, &r) >= 0);
1016         assert_se(streq(r, name));
1017         free(r);
1018         assert_se(unlink(name_alias) >= 0);
1019
1020         assert_se(rm_rf_dangerous(tempdir, false, true, false) >= 0);
1021 }
1022
1023 static void test_read_one_char(void) {
1024         _cleanup_fclose_ FILE *file = NULL;
1025         char r;
1026         bool need_nl;
1027         char name[] = "/tmp/test-read_one_char.XXXXXX";
1028         int fd;
1029
1030         fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
1031         assert_se(fd >= 0);
1032         file = fdopen(fd, "r+");
1033         assert_se(file);
1034         assert_se(fputs("c\n", file) >= 0);
1035         rewind(file);
1036
1037         assert_se(read_one_char(file, &r, 1000000, &need_nl) >= 0);
1038         assert_se(!need_nl);
1039         assert_se(r == 'c');
1040         assert_se(read_one_char(file, &r, 1000000, &need_nl) < 0);
1041
1042         rewind(file);
1043         assert_se(fputs("foobar\n", file) >= 0);
1044         rewind(file);
1045         assert_se(read_one_char(file, &r, 1000000, &need_nl) < 0);
1046
1047         rewind(file);
1048         assert_se(fputs("\n", file) >= 0);
1049         rewind(file);
1050         assert_se(read_one_char(file, &r, 1000000, &need_nl) < 0);
1051
1052         unlink(name);
1053 }
1054
1055 static void test_ignore_signals(void) {
1056         assert_se(ignore_signals(SIGINT, -1) >= 0);
1057         assert_se(kill(getpid(), SIGINT) >= 0);
1058         assert_se(ignore_signals(SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
1059         assert_se(kill(getpid(), SIGUSR1) >= 0);
1060         assert_se(kill(getpid(), SIGUSR2) >= 0);
1061         assert_se(kill(getpid(), SIGTERM) >= 0);
1062         assert_se(kill(getpid(), SIGPIPE) >= 0);
1063         assert_se(default_signals(SIGINT, SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
1064 }
1065
1066 static void test_strshorten(void) {
1067         char s[] = "foobar";
1068
1069         assert_se(strlen(strshorten(s, 6)) == 6);
1070         assert_se(strlen(strshorten(s, 12)) == 6);
1071         assert_se(strlen(strshorten(s, 2)) == 2);
1072         assert_se(strlen(strshorten(s, 0)) == 0);
1073 }
1074
1075 static void test_strjoina(void) {
1076         char *actual;
1077
1078         actual = strjoina("", "foo", "bar");
1079         assert_se(streq(actual, "foobar"));
1080
1081         actual = strjoina("foo", "bar", "baz");
1082         assert_se(streq(actual, "foobarbaz"));
1083
1084         actual = strjoina("foo", "", "bar", "baz");
1085         assert_se(streq(actual, "foobarbaz"));
1086
1087         actual = strjoina("foo");
1088         assert_se(streq(actual, "foo"));
1089
1090         actual = strjoina(NULL);
1091         assert_se(streq(actual, ""));
1092
1093         actual = strjoina(NULL, "foo");
1094         assert_se(streq(actual, ""));
1095
1096         actual = strjoina("foo", NULL, "bar");
1097         assert_se(streq(actual, "foo"));
1098 }
1099
1100 static void test_is_symlink(void) {
1101         char name[] = "/tmp/test-is_symlink.XXXXXX";
1102         char name_link[] = "/tmp/test-is_symlink.link";
1103         _cleanup_close_ int fd = -1;
1104
1105         fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
1106         assert_se(fd >= 0);
1107         assert_se(symlink(name, name_link) >= 0);
1108
1109         assert_se(is_symlink(name) == 0);
1110         assert_se(is_symlink(name_link) == 1);
1111         assert_se(is_symlink("/a/file/which/does/not/exist/i/guess") < 0);
1112
1113
1114         unlink(name);
1115         unlink(name_link);
1116 }
1117
1118 static void test_pid_is_unwaited(void) {
1119         pid_t pid;
1120
1121         pid = fork();
1122         assert_se(pid >= 0);
1123         if (pid == 0) {
1124                 _exit(EXIT_SUCCESS);
1125         } else {
1126                 int status;
1127
1128                 waitpid(pid, &status, 0);
1129                 assert_se(!pid_is_unwaited(pid));
1130         }
1131         assert_se(pid_is_unwaited(getpid()));
1132         assert_se(!pid_is_unwaited(-1));
1133 }
1134
1135 static void test_pid_is_alive(void) {
1136         pid_t pid;
1137
1138         pid = fork();
1139         assert_se(pid >= 0);
1140         if (pid == 0) {
1141                 _exit(EXIT_SUCCESS);
1142         } else {
1143                 int status;
1144
1145                 waitpid(pid, &status, 0);
1146                 assert_se(!pid_is_alive(pid));
1147         }
1148         assert_se(pid_is_alive(getpid()));
1149         assert_se(!pid_is_alive(-1));
1150 }
1151
1152 static void test_search_and_fopen(void) {
1153         const char *dirs[] = {"/tmp/foo/bar", "/tmp", NULL};
1154         char name[] = "/tmp/test-search_and_fopen.XXXXXX";
1155         int fd = -1;
1156         int r;
1157         FILE *f;
1158
1159         fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
1160         assert_se(fd >= 0);
1161         close(fd);
1162
1163         r = search_and_fopen(basename(name), "r", NULL, dirs, &f);
1164         assert_se(r >= 0);
1165         fclose(f);
1166
1167         r = search_and_fopen(name, "r", NULL, dirs, &f);
1168         assert_se(r >= 0);
1169         fclose(f);
1170
1171         r = search_and_fopen(basename(name), "r", "/", dirs, &f);
1172         assert_se(r >= 0);
1173         fclose(f);
1174
1175         r = search_and_fopen("/a/file/which/does/not/exist/i/guess", "r", NULL, dirs, &f);
1176         assert_se(r < 0);
1177         r = search_and_fopen("afilewhichdoesnotexistiguess", "r", NULL, dirs, &f);
1178         assert_se(r < 0);
1179
1180         r = unlink(name);
1181         assert_se(r == 0);
1182
1183         r = search_and_fopen(basename(name), "r", NULL, dirs, &f);
1184         assert_se(r < 0);
1185 }
1186
1187
1188 static void test_search_and_fopen_nulstr(void) {
1189         const char dirs[] = "/tmp/foo/bar\0/tmp\0";
1190         char name[] = "/tmp/test-search_and_fopen.XXXXXX";
1191         int fd = -1;
1192         int r;
1193         FILE *f;
1194
1195         fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
1196         assert_se(fd >= 0);
1197         close(fd);
1198
1199         r = search_and_fopen_nulstr(basename(name), "r", NULL, dirs, &f);
1200         assert_se(r >= 0);
1201         fclose(f);
1202
1203         r = search_and_fopen_nulstr(name, "r", NULL, dirs, &f);
1204         assert_se(r >= 0);
1205         fclose(f);
1206
1207         r = search_and_fopen_nulstr("/a/file/which/does/not/exist/i/guess", "r", NULL, dirs, &f);
1208         assert_se(r < 0);
1209         r = search_and_fopen_nulstr("afilewhichdoesnotexistiguess", "r", NULL, dirs, &f);
1210         assert_se(r < 0);
1211
1212         r = unlink(name);
1213         assert_se(r == 0);
1214
1215         r = search_and_fopen_nulstr(basename(name), "r", NULL, dirs, &f);
1216         assert_se(r < 0);
1217 }
1218
1219 static void test_glob_exists(void) {
1220         char name[] = "/tmp/test-glob_exists.XXXXXX";
1221         int fd = -1;
1222         int r;
1223
1224         fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
1225         assert_se(fd >= 0);
1226         close(fd);
1227
1228         r = glob_exists("/tmp/test-glob_exists*");
1229         assert_se(r == 1);
1230
1231         r = unlink(name);
1232         assert_se(r == 0);
1233         r = glob_exists("/tmp/test-glob_exists*");
1234         assert_se(r == 0);
1235 }
1236
1237 static void test_execute_directory(void) {
1238         char template_lo[] = "/tmp/test-readlink_and_make_absolute-lo.XXXXXXX";
1239         char template_hi[] = "/tmp/test-readlink_and_make_absolute-hi.XXXXXXX";
1240         const char * dirs[] = {template_hi, template_lo, NULL};
1241         const char *name, *name2, *name3, *overridden, *override, *masked, *mask;
1242
1243         assert_se(mkdtemp(template_lo));
1244         assert_se(mkdtemp(template_hi));
1245
1246         name = strjoina(template_lo, "/script");
1247         name2 = strjoina(template_hi, "/script2");
1248         name3 = strjoina(template_lo, "/useless");
1249         overridden = strjoina(template_lo, "/overridden");
1250         override = strjoina(template_hi, "/overridden");
1251         masked = strjoina(template_lo, "/masked");
1252         mask = strjoina(template_hi, "/masked");
1253
1254         assert_se(write_string_file(name, "#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/it_works") == 0);
1255         assert_se(write_string_file(name2, "#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/it_works2") == 0);
1256         assert_se(write_string_file(overridden, "#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/failed") == 0);
1257         assert_se(write_string_file(override, "#!/bin/sh\necho 'Executing '$0") == 0);
1258         assert_se(write_string_file(masked, "#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/failed") == 0);
1259         assert_se(symlink("/dev/null", mask) == 0);
1260         assert_se(chmod(name, 0755) == 0);
1261         assert_se(chmod(name2, 0755) == 0);
1262         assert_se(chmod(overridden, 0755) == 0);
1263         assert_se(chmod(override, 0755) == 0);
1264         assert_se(chmod(masked, 0755) == 0);
1265         assert_se(touch(name3) >= 0);
1266
1267         execute_directories(dirs, DEFAULT_TIMEOUT_USEC, NULL);
1268
1269         assert_se(chdir(template_lo) == 0);
1270         assert_se(access("it_works", F_OK) >= 0);
1271         assert_se(access("failed", F_OK) < 0);
1272
1273         assert_se(chdir(template_hi) == 0);
1274         assert_se(access("it_works2", F_OK) >= 0);
1275         assert_se(access("failed", F_OK) < 0);
1276
1277         rm_rf_dangerous(template_lo, false, true, false);
1278         rm_rf_dangerous(template_hi, false, true, false);
1279 }
1280
1281 static void test_unquote_first_word(void) {
1282         const char *p, *original;
1283         char *t;
1284
1285         p = original = "foobar waldo";
1286         assert_se(unquote_first_word(&p, &t, 0) > 0);
1287         assert_se(streq(t, "foobar"));
1288         free(t);
1289         assert_se(p == original + 7);
1290
1291         assert_se(unquote_first_word(&p, &t, 0) > 0);
1292         assert_se(streq(t, "waldo"));
1293         free(t);
1294         assert_se(p == original + 12);
1295
1296         assert_se(unquote_first_word(&p, &t, 0) == 0);
1297         assert_se(!t);
1298         assert_se(p == original + 12);
1299
1300         p = original = "\"foobar\" \'waldo\'";
1301         assert_se(unquote_first_word(&p, &t, 0) > 0);
1302         assert_se(streq(t, "foobar"));
1303         free(t);
1304         assert_se(p == original + 9);
1305
1306         assert_se(unquote_first_word(&p, &t, 0) > 0);
1307         assert_se(streq(t, "waldo"));
1308         free(t);
1309         assert_se(p == original + 16);
1310
1311         assert_se(unquote_first_word(&p, &t, 0) == 0);
1312         assert_se(!t);
1313         assert_se(p == original + 16);
1314
1315         p = original = "\"";
1316         assert_se(unquote_first_word(&p, &t, 0) == -EINVAL);
1317         assert_se(p == original + 1);
1318
1319         p = original = "\'";
1320         assert_se(unquote_first_word(&p, &t, 0) == -EINVAL);
1321         assert_se(p == original + 1);
1322
1323         p = original = "\'fooo";
1324         assert_se(unquote_first_word(&p, &t, 0) == -EINVAL);
1325         assert_se(p == original + 5);
1326
1327         p = original = "\'fooo";
1328         assert_se(unquote_first_word(&p, &t, UNQUOTE_RELAX) > 0);
1329         assert_se(streq(t, "fooo"));
1330         free(t);
1331         assert_se(p == original + 5);
1332
1333         p = original = "yay\'foo\'bar";
1334         assert_se(unquote_first_word(&p, &t, 0) > 0);
1335         assert_se(streq(t, "yayfoobar"));
1336         free(t);
1337         assert_se(p == original + 11);
1338
1339         p = original = "   foobar   ";
1340         assert_se(unquote_first_word(&p, &t, 0) > 0);
1341         assert_se(streq(t, "foobar"));
1342         free(t);
1343         assert_se(p == original + 12);
1344
1345         p = original = " foo\\ba\\x6ar ";
1346         assert_se(unquote_first_word(&p, &t, UNQUOTE_CUNESCAPE) > 0);
1347         assert_se(streq(t, "foo\ba\x6ar"));
1348         free(t);
1349         assert_se(p == original + 13);
1350
1351         p = original = " foo\\ba\\x6ar ";
1352         assert_se(unquote_first_word(&p, &t, 0) > 0);
1353         assert_se(streq(t, "foobax6ar"));
1354         free(t);
1355         assert_se(p == original + 13);
1356 }
1357
1358 static void test_unquote_many_words(void) {
1359         const char *p, *original;
1360         char *a, *b, *c;
1361
1362         p = original = "foobar waldi piep";
1363         assert_se(unquote_many_words(&p, 0, &a, &b, &c, NULL) == 3);
1364         assert_se(p == original + 17);
1365         assert_se(streq_ptr(a, "foobar"));
1366         assert_se(streq_ptr(b, "waldi"));
1367         assert_se(streq_ptr(c, "piep"));
1368         free(a);
1369         free(b);
1370         free(c);
1371
1372         p = original = "'foobar' wa\"ld\"i   ";
1373         assert_se(unquote_many_words(&p, 0, &a, &b, &c, NULL) == 2);
1374         assert_se(p == original + 19);
1375         assert_se(streq_ptr(a, "foobar"));
1376         assert_se(streq_ptr(b, "waldi"));
1377         assert_se(streq_ptr(c, NULL));
1378         free(a);
1379         free(b);
1380
1381         p = original = "";
1382         assert_se(unquote_many_words(&p, 0, &a, &b, &c, NULL) == 0);
1383         assert_se(p == original);
1384         assert_se(streq_ptr(a, NULL));
1385         assert_se(streq_ptr(b, NULL));
1386         assert_se(streq_ptr(c, NULL));
1387
1388         p = original = "  ";
1389         assert_se(unquote_many_words(&p, 0, &a, &b, &c, NULL) == 0);
1390         assert_se(p == original+2);
1391         assert_se(streq_ptr(a, NULL));
1392         assert_se(streq_ptr(b, NULL));
1393         assert_se(streq_ptr(c, NULL));
1394
1395         p = original = "foobar";
1396         assert_se(unquote_many_words(&p, 0, NULL) == 0);
1397         assert_se(p == original);
1398
1399         p = original = "foobar waldi";
1400         assert_se(unquote_many_words(&p, 0, &a, NULL) == 1);
1401         assert_se(p == original+7);
1402         assert_se(streq_ptr(a, "foobar"));
1403         free(a);
1404
1405         p = original = "     foobar    ";
1406         assert_se(unquote_many_words(&p, 0, &a, NULL) == 1);
1407         assert_se(p == original+15);
1408         assert_se(streq_ptr(a, "foobar"));
1409         free(a);
1410 }
1411
1412 static int parse_item(const char *key, const char *value) {
1413         assert_se(key);
1414
1415         log_info("kernel cmdline option <%s> = <%s>", key, strna(value));
1416         return 0;
1417 }
1418
1419 static void test_parse_proc_cmdline(void) {
1420         assert_se(parse_proc_cmdline(parse_item) >= 0);
1421 }
1422
1423 static void test_raw_clone(void) {
1424         pid_t parent, pid, pid2;
1425
1426         parent = getpid();
1427         log_info("before clone: getpid()→"PID_FMT, parent);
1428         assert_se(raw_getpid() == parent);
1429
1430         pid = raw_clone(0, NULL);
1431         assert_se(pid >= 0);
1432
1433         pid2 = raw_getpid();
1434         log_info("raw_clone: "PID_FMT" getpid()→"PID_FMT" raw_getpid()→"PID_FMT,
1435                  pid, getpid(), pid2);
1436         if (pid == 0) {
1437                 assert_se(pid2 != parent);
1438                 _exit(EXIT_SUCCESS);
1439         } else {
1440                 int status;
1441
1442                 assert_se(pid2 == parent);
1443                 waitpid(pid, &status, __WCLONE);
1444                 assert_se(WIFEXITED(status) && WEXITSTATUS(status) == EXIT_SUCCESS);
1445         }
1446 }
1447
1448 static void test_same_fd(void) {
1449         _cleanup_close_pair_ int p[2] = { -1, -1 };
1450         _cleanup_close_ int a = -1, b = -1, c = -1;
1451
1452         assert_se(pipe2(p, O_CLOEXEC) >= 0);
1453         assert_se((a = dup(p[0])) >= 0);
1454         assert_se((b = open("/dev/null", O_RDONLY|O_CLOEXEC)) >= 0);
1455         assert_se((c = dup(a)) >= 0);
1456
1457         assert_se(same_fd(p[0], p[0]) > 0);
1458         assert_se(same_fd(p[1], p[1]) > 0);
1459         assert_se(same_fd(a, a) > 0);
1460         assert_se(same_fd(b, b) > 0);
1461
1462         assert_se(same_fd(a, p[0]) > 0);
1463         assert_se(same_fd(p[0], a) > 0);
1464         assert_se(same_fd(c, p[0]) > 0);
1465         assert_se(same_fd(p[0], c) > 0);
1466         assert_se(same_fd(a, c) > 0);
1467         assert_se(same_fd(c, a) > 0);
1468
1469         assert_se(same_fd(p[0], p[1]) == 0);
1470         assert_se(same_fd(p[1], p[0]) == 0);
1471         assert_se(same_fd(p[0], b) == 0);
1472         assert_se(same_fd(b, p[0]) == 0);
1473         assert_se(same_fd(p[1], a) == 0);
1474         assert_se(same_fd(a, p[1]) == 0);
1475         assert_se(same_fd(p[1], b) == 0);
1476         assert_se(same_fd(b, p[1]) == 0);
1477
1478         assert_se(same_fd(a, b) == 0);
1479         assert_se(same_fd(b, a) == 0);
1480 }
1481
1482 static void test_uid_ptr(void) {
1483
1484         assert_se(UID_TO_PTR(0) != NULL);
1485         assert_se(UID_TO_PTR(1000) != NULL);
1486
1487         assert_se(PTR_TO_UID(UID_TO_PTR(0)) == 0);
1488         assert_se(PTR_TO_UID(UID_TO_PTR(1000)) == 1000);
1489 }
1490
1491 static void test_sparse_write_one(int fd, const char *buffer, size_t n) {
1492         char check[n];
1493
1494         assert_se(lseek(fd, 0, SEEK_SET) == 0);
1495         assert_se(ftruncate(fd, 0) >= 0);
1496         assert_se(sparse_write(fd, buffer, n, 4) == (ssize_t) n);
1497
1498         assert_se(lseek(fd, 0, SEEK_CUR) == (off_t) n);
1499         assert_se(ftruncate(fd, n) >= 0);
1500
1501         assert_se(lseek(fd, 0, SEEK_SET) == 0);
1502         assert_se(read(fd, check, n) == (ssize_t) n);
1503
1504         assert_se(memcmp(buffer, check, n) == 0);
1505 }
1506
1507 static void test_sparse_write(void) {
1508         const char test_a[] = "test";
1509         const char test_b[] = "\0\0\0\0test\0\0\0\0";
1510         const char test_c[] = "\0\0test\0\0\0\0";
1511         const char test_d[] = "\0\0test\0\0\0test\0\0\0\0test\0\0\0\0\0test\0\0\0test\0\0\0\0test\0\0\0\0\0\0\0\0";
1512         const char test_e[] = "test\0\0\0\0test";
1513         _cleanup_close_ int fd = -1;
1514         char fn[] = "/tmp/sparseXXXXXX";
1515
1516         fd = mkostemp(fn, O_CLOEXEC);
1517         assert_se(fd >= 0);
1518         unlink(fn);
1519
1520         test_sparse_write_one(fd, test_a, sizeof(test_a));
1521         test_sparse_write_one(fd, test_b, sizeof(test_b));
1522         test_sparse_write_one(fd, test_c, sizeof(test_c));
1523         test_sparse_write_one(fd, test_d, sizeof(test_d));
1524         test_sparse_write_one(fd, test_e, sizeof(test_e));
1525 }
1526
1527 int main(int argc, char *argv[]) {
1528         log_parse_environment();
1529         log_open();
1530
1531         test_streq_ptr();
1532         test_align_power2();
1533         test_max();
1534         test_container_of();
1535         test_alloca();
1536         test_div_round_up();
1537         test_first_word();
1538         test_close_many();
1539         test_parse_boolean();
1540         test_parse_pid();
1541         test_parse_uid();
1542         test_safe_atolli();
1543         test_safe_atod();
1544         test_strappend();
1545         test_strstrip();
1546         test_delete_chars();
1547         test_in_charset();
1548         test_hexchar();
1549         test_unhexchar();
1550         test_octchar();
1551         test_unoctchar();
1552         test_decchar();
1553         test_undecchar();
1554         test_cescape();
1555         test_cunescape();
1556         test_foreach_word();
1557         test_foreach_word_quoted();
1558         test_default_term_for_tty();
1559         test_memdup_multiply();
1560         test_hostname_is_valid();
1561         test_u64log2();
1562         test_get_process_comm();
1563         test_protect_errno();
1564         test_parse_size();
1565         test_config_parse_iec_off();
1566         test_strextend();
1567         test_strrep();
1568         test_split_pair();
1569         test_fstab_node_to_udev_node();
1570         test_get_files_in_directory();
1571         test_in_set();
1572         test_writing_tmpfile();
1573         test_hexdump();
1574         test_log2i();
1575         test_foreach_string();
1576         test_filename_is_valid();
1577         test_string_has_cc();
1578         test_ascii_strlower();
1579         test_files_same();
1580         test_is_valid_documentation_url();
1581         test_file_in_same_dir();
1582         test_endswith();
1583         test_close_nointr();
1584         test_unlink_noerrno();
1585         test_readlink_and_make_absolute();
1586         test_read_one_char();
1587         test_ignore_signals();
1588         test_strshorten();
1589         test_strjoina();
1590         test_is_symlink();
1591         test_pid_is_unwaited();
1592         test_pid_is_alive();
1593         test_search_and_fopen();
1594         test_search_and_fopen_nulstr();
1595         test_glob_exists();
1596         test_execute_directory();
1597         test_unquote_first_word();
1598         test_unquote_many_words();
1599         test_parse_proc_cmdline();
1600         test_raw_clone();
1601         test_same_fd();
1602         test_uid_ptr();
1603         test_sparse_write();
1604
1605         return 0;
1606 }