src/test/test-process-util.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright 2013 Thomas H.P. Andersen
   4 ***/
   5
   6 #include <sched.h>
   7 #include <sys/mount.h>
   8 #include <sys/personality.h>
   9 #include <sys/prctl.h>
  10 #include <sys/stat.h>
  11 #include <sys/types.h>
  12 #include <sys/wait.h>
  13 #include <unistd.h>
  14 #if HAVE_VALGRIND_VALGRIND_H
  15 #include <valgrind/valgrind.h>
  16 #endif
  17
  18 #include "alloc-util.h"
  19 #include "architecture.h"
  20 #include "fd-util.h"
  21 #include "log.h"
  22 #include "macro.h"
  23 #include "parse-util.h"
  24 #include "process-util.h"
  25 #include "signal-util.h"
  26 #include "stdio-util.h"
  27 #include "string-util.h"
  28 #include "terminal-util.h"
  29 #include "test-helper.h"
  30 #include "util.h"
  31 #include "virt.h"
  32
  33 static void test_get_process_comm(pid_t pid) {
  34         struct stat st;
  35         _cleanup_free_ char *a = NULL, *c = NULL, *d = NULL, *f = NULL, *i = NULL;
  36         _cleanup_free_ char *env = NULL;
  37         char path[STRLEN("/proc//comm") + DECIMAL_STR_MAX(pid_t)];
  38         pid_t e;
  39         uid_t u;
  40         gid_t g;
  41         dev_t h;
  42         int r;
  43
  44         xsprintf(path, "/proc/"PID_FMT"/comm", pid);
  45
  46         if (stat(path, &st) == 0) {
  47                 assert_se(get_process_comm(pid, &a) >= 0);
  48                 log_info("PID"PID_FMT" comm: '%s'", pid, a);
  49         } else
  50                 log_warning("%s not exist.", path);
  51
  52         assert_se(get_process_cmdline(pid, 0, true, &c) >= 0);
  53         log_info("PID"PID_FMT" cmdline: '%s'", pid, c);
  54
  55         assert_se(get_process_cmdline(pid, 8, false, &d) >= 0);
  56         log_info("PID"PID_FMT" cmdline truncated to 8: '%s'", pid, d);
  57
  58         free(d);
  59         assert_se(get_process_cmdline(pid, 1, false, &d) >= 0);
  60         log_info("PID"PID_FMT" cmdline truncated to 1: '%s'", pid, d);
  61
  62         assert_se(get_process_ppid(pid, &e) >= 0);
  63         log_info("PID"PID_FMT" PPID: "PID_FMT, pid, e);
  64         assert_se(pid == 1 ? e == 0 : e > 0);
  65
  66         assert_se(is_kernel_thread(pid) == 0 || pid != 1);
  67
  68         r = get_process_exe(pid, &f);
  69         assert_se(r >= 0 || r == -EACCES);
  70         log_info("PID"PID_FMT" exe: '%s'", pid, strna(f));
  71
  72         assert_se(get_process_uid(pid, &u) == 0);
  73         log_info("PID"PID_FMT" UID: "UID_FMT, pid, u);
  74         assert_se(u == 0 || pid != 1);
  75
  76         assert_se(get_process_gid(pid, &g) == 0);
  77         log_info("PID"PID_FMT" GID: "GID_FMT, pid, g);
  78         assert_se(g == 0 || pid != 1);
  79
  80         r = get_process_environ(pid, &env);
  81         assert_se(r >= 0 || r == -EACCES);
  82         log_info("PID"PID_FMT" strlen(environ): %zi", pid, env ? (ssize_t)strlen(env) : (ssize_t)-errno);
  83
  84         if (!detect_container())
  85                 assert_se(get_ctty_devnr(pid, &h) == -ENXIO || pid != 1);
  86
  87         (void) getenv_for_pid(pid, "PATH", &i);
  88         log_info("PID"PID_FMT" $PATH: '%s'", pid, strna(i));
  89 }
  90
  91 static void test_get_process_comm_escape_one(const char *input, const char *output) {
  92         _cleanup_free_ char *n = NULL;
  93
  94         log_info("input: <%s> — output: <%s>", input, output);
  95
  96         assert_se(prctl(PR_SET_NAME, input) >= 0);
  97         assert_se(get_process_comm(0, &n) >= 0);
  98
  99         log_info("got: <%s>", n);
 100
 101         assert_se(streq_ptr(n, output));
 102 }
 103
 104 static void test_get_process_comm_escape(void) {
 105         _cleanup_free_ char *saved = NULL;
 106
 107         assert_se(get_process_comm(0, &saved) >= 0);
 108
 109         test_get_process_comm_escape_one("", "");
 110         test_get_process_comm_escape_one("foo", "foo");
 111         test_get_process_comm_escape_one("012345678901234", "012345678901234");
 112         test_get_process_comm_escape_one("0123456789012345", "012345678901234");
 113         test_get_process_comm_escape_one("äöüß", "\\303\\244\\303…");
 114         test_get_process_comm_escape_one("xäöüß", "x\\303\\244…");
 115         test_get_process_comm_escape_one("xxäöüß", "xx\\303\\244…");
 116         test_get_process_comm_escape_one("xxxäöüß", "xxx\\303\\244…");
 117         test_get_process_comm_escape_one("xxxxäöüß", "xxxx\\303\\244…");
 118         test_get_process_comm_escape_one("xxxxxäöüß", "xxxxx\\303…");
 119
 120         assert_se(prctl(PR_SET_NAME, saved) >= 0);
 121 }
 122
 123 static void test_pid_is_unwaited(void) {
 124         pid_t pid;
 125
 126         pid = fork();
 127         assert_se(pid >= 0);
 128         if (pid == 0) {
 129                 _exit(EXIT_SUCCESS);
 130         } else {
 131                 int status;
 132
 133                 waitpid(pid, &status, 0);
 134                 assert_se(!pid_is_unwaited(pid));
 135         }
 136         assert_se(pid_is_unwaited(getpid_cached()));
 137         assert_se(!pid_is_unwaited(-1));
 138 }
 139
 140 static void test_pid_is_alive(void) {
 141         pid_t pid;
 142
 143         pid = fork();
 144         assert_se(pid >= 0);
 145         if (pid == 0) {
 146                 _exit(EXIT_SUCCESS);
 147         } else {
 148                 int status;
 149
 150                 waitpid(pid, &status, 0);
 151                 assert_se(!pid_is_alive(pid));
 152         }
 153         assert_se(pid_is_alive(getpid_cached()));
 154         assert_se(!pid_is_alive(-1));
 155 }
 156
 157 static void test_personality(void) {
 158
 159         assert_se(personality_to_string(PER_LINUX));
 160         assert_se(!personality_to_string(PERSONALITY_INVALID));
 161
 162         assert_se(streq(personality_to_string(PER_LINUX), architecture_to_string(native_architecture())));
 163
 164         assert_se(personality_from_string(personality_to_string(PER_LINUX)) == PER_LINUX);
 165         assert_se(personality_from_string(architecture_to_string(native_architecture())) == PER_LINUX);
 166
 167 #ifdef __x86_64__
 168         assert_se(streq_ptr(personality_to_string(PER_LINUX), "x86-64"));
 169         assert_se(streq_ptr(personality_to_string(PER_LINUX32), "x86"));
 170
 171         assert_se(personality_from_string("x86-64") == PER_LINUX);
 172         assert_se(personality_from_string("x86") == PER_LINUX32);
 173         assert_se(personality_from_string("ia64") == PERSONALITY_INVALID);
 174         assert_se(personality_from_string(NULL) == PERSONALITY_INVALID);
 175
 176         assert_se(personality_from_string(personality_to_string(PER_LINUX32)) == PER_LINUX32);
 177 #endif
 178 }
 179
 180 static void test_get_process_cmdline_harder(void) {
 181         char path[] = "/tmp/test-cmdlineXXXXXX";
 182         _cleanup_close_ int fd = -1;
 183         _cleanup_free_ char *line = NULL;
 184         pid_t pid;
 185
 186         if (geteuid() != 0)
 187                 return;
 188
 189 #if HAVE_VALGRIND_VALGRIND_H
 190         /* valgrind patches open(/proc//cmdline)
 191          * so, test_get_process_cmdline_harder fails always
 192          * See https://github.com/systemd/systemd/pull/3555#issuecomment-226564908 */
 193         if (RUNNING_ON_VALGRIND)
 194                 return;
 195 #endif
 196
 197         pid = fork();
 198         if (pid > 0) {
 199                 siginfo_t si;
 200
 201                 (void) wait_for_terminate(pid, &si);
 202
 203                 assert_se(si.si_code == CLD_EXITED);
 204                 assert_se(si.si_status == 0);
 205
 206                 return;
 207         }
 208
 209         assert_se(pid == 0);
 210         assert_se(unshare(CLONE_NEWNS) >= 0);
 211
 212         assert_se(mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL) >= 0);
 213
 214         fd = mkostemp(path, O_CLOEXEC);
 215         assert_se(fd >= 0);
 216
 217         if (mount(path, "/proc/self/cmdline", "bind", MS_BIND, NULL) < 0) {
 218                 /* This happens under selinux… Abort the test in this case. */
 219                 log_warning_errno(errno, "mount(..., \"/proc/self/cmdline\", \"bind\", ...) failed: %m");
 220                 assert(errno == EACCES);
 221                 return;
 222         }
 223
 224         assert_se(unlink(path) >= 0);
 225
 226         assert_se(prctl(PR_SET_NAME, "testa") >= 0);
 227
 228         assert_se(get_process_cmdline(getpid_cached(), 0, false, &line) == -ENOENT);
 229
 230         assert_se(get_process_cmdline(getpid_cached(), 0, true, &line) >= 0);
 231         assert_se(streq(line, "[testa]"));
 232         line = mfree(line);
 233
 234         assert_se(get_process_cmdline(getpid_cached(), 1, true, &line) >= 0);
 235         assert_se(streq(line, ""));
 236         line = mfree(line);
 237
 238         assert_se(get_process_cmdline(getpid_cached(), 2, true, &line) >= 0);
 239         assert_se(streq(line, "["));
 240         line = mfree(line);
 241
 242         assert_se(get_process_cmdline(getpid_cached(), 3, true, &line) >= 0);
 243         assert_se(streq(line, "[."));
 244         line = mfree(line);
 245
 246         assert_se(get_process_cmdline(getpid_cached(), 4, true, &line) >= 0);
 247         assert_se(streq(line, "[.."));
 248         line = mfree(line);
 249
 250         assert_se(get_process_cmdline(getpid_cached(), 5, true, &line) >= 0);
 251         assert_se(streq(line, "[..."));
 252         line = mfree(line);
 253
 254         assert_se(get_process_cmdline(getpid_cached(), 6, true, &line) >= 0);
 255         assert_se(streq(line, "[...]"));
 256         line = mfree(line);
 257
 258         assert_se(get_process_cmdline(getpid_cached(), 7, true, &line) >= 0);
 259         assert_se(streq(line, "[t...]"));
 260         line = mfree(line);
 261
 262         assert_se(get_process_cmdline(getpid_cached(), 8, true, &line) >= 0);
 263         assert_se(streq(line, "[testa]"));
 264         line = mfree(line);
 265
 266         assert_se(write(fd, "\0\0\0\0\0\0\0\0\0", 10) == 10);
 267
 268         assert_se(get_process_cmdline(getpid_cached(), 0, false, &line) == -ENOENT);
 269
 270         assert_se(get_process_cmdline(getpid_cached(), 0, true, &line) >= 0);
 271         assert_se(streq(line, "[testa]"));
 272         line = mfree(line);
 273
 274         assert_se(write(fd, "foo\0bar\0\0\0\0\0", 10) == 10);
 275
 276         assert_se(get_process_cmdline(getpid_cached(), 0, false, &line) >= 0);
 277         assert_se(streq(line, "foo bar"));
 278         line = mfree(line);
 279
 280         assert_se(get_process_cmdline(getpid_cached(), 0, true, &line) >= 0);
 281         assert_se(streq(line, "foo bar"));
 282         line = mfree(line);
 283
 284         assert_se(write(fd, "quux", 4) == 4);
 285         assert_se(get_process_cmdline(getpid_cached(), 0, false, &line) >= 0);
 286         assert_se(streq(line, "foo bar quux"));
 287         line = mfree(line);
 288
 289         assert_se(get_process_cmdline(getpid_cached(), 0, true, &line) >= 0);
 290         assert_se(streq(line, "foo bar quux"));
 291         line = mfree(line);
 292
 293         assert_se(get_process_cmdline(getpid_cached(), 1, true, &line) >= 0);
 294         assert_se(streq(line, ""));
 295         line = mfree(line);
 296
 297         assert_se(get_process_cmdline(getpid_cached(), 2, true, &line) >= 0);
 298         assert_se(streq(line, "."));
 299         line = mfree(line);
 300
 301         assert_se(get_process_cmdline(getpid_cached(), 3, true, &line) >= 0);
 302         assert_se(streq(line, ".."));
 303         line = mfree(line);
 304
 305         assert_se(get_process_cmdline(getpid_cached(), 4, true, &line) >= 0);
 306         assert_se(streq(line, "..."));
 307         line = mfree(line);
 308
 309         assert_se(get_process_cmdline(getpid_cached(), 5, true, &line) >= 0);
 310         assert_se(streq(line, "f..."));
 311         line = mfree(line);
 312
 313         assert_se(get_process_cmdline(getpid_cached(), 6, true, &line) >= 0);
 314         assert_se(streq(line, "fo..."));
 315         line = mfree(line);
 316
 317         assert_se(get_process_cmdline(getpid_cached(), 7, true, &line) >= 0);
 318         assert_se(streq(line, "foo..."));
 319         line = mfree(line);
 320
 321         assert_se(get_process_cmdline(getpid_cached(), 8, true, &line) >= 0);
 322         assert_se(streq(line, "foo..."));
 323         line = mfree(line);
 324
 325         assert_se(get_process_cmdline(getpid_cached(), 9, true, &line) >= 0);
 326         assert_se(streq(line, "foo b..."));
 327         line = mfree(line);
 328
 329         assert_se(get_process_cmdline(getpid_cached(), 10, true, &line) >= 0);
 330         assert_se(streq(line, "foo ba..."));
 331         line = mfree(line);
 332
 333         assert_se(get_process_cmdline(getpid_cached(), 11, true, &line) >= 0);
 334         assert_se(streq(line, "foo bar..."));
 335         line = mfree(line);
 336
 337         assert_se(get_process_cmdline(getpid_cached(), 12, true, &line) >= 0);
 338         assert_se(streq(line, "foo bar..."));
 339         line = mfree(line);
 340
 341         assert_se(get_process_cmdline(getpid_cached(), 13, true, &line) >= 0);
 342         assert_se(streq(line, "foo bar quux"));
 343         line = mfree(line);
 344
 345         assert_se(get_process_cmdline(getpid_cached(), 14, true, &line) >= 0);
 346         assert_se(streq(line, "foo bar quux"));
 347         line = mfree(line);
 348
 349         assert_se(get_process_cmdline(getpid_cached(), 1000, true, &line) >= 0);
 350         assert_se(streq(line, "foo bar quux"));
 351         line = mfree(line);
 352
 353         assert_se(ftruncate(fd, 0) >= 0);
 354         assert_se(prctl(PR_SET_NAME, "aaaa bbbb cccc") >= 0);
 355
 356         assert_se(get_process_cmdline(getpid_cached(), 0, false, &line) == -ENOENT);
 357
 358         assert_se(get_process_cmdline(getpid_cached(), 0, true, &line) >= 0);
 359         assert_se(streq(line, "[aaaa bbbb cccc]"));
 360         line = mfree(line);
 361
 362         assert_se(get_process_cmdline(getpid_cached(), 10, true, &line) >= 0);
 363         assert_se(streq(line, "[aaaa...]"));
 364         line = mfree(line);
 365
 366         assert_se(get_process_cmdline(getpid_cached(), 11, true, &line) >= 0);
 367         assert_se(streq(line, "[aaaa...]"));
 368         line = mfree(line);
 369
 370         assert_se(get_process_cmdline(getpid_cached(), 12, true, &line) >= 0);
 371         assert_se(streq(line, "[aaaa b...]"));
 372         line = mfree(line);
 373
 374         safe_close(fd);
 375         _exit(EXIT_SUCCESS);
 376 }
 377
 378 static void test_rename_process_now(const char *p, int ret) {
 379         _cleanup_free_ char *comm = NULL, *cmdline = NULL;
 380         int r;
 381
 382         r = rename_process(p);
 383         assert_se(r == ret ||
 384                   (ret == 0 && r >= 0) ||
 385                   (ret > 0 && r > 0));
 386
 387         if (r < 0)
 388                 return;
 389
 390 #if HAVE_VALGRIND_VALGRIND_H
 391         /* see above, valgrind is weird, we can't verify what we are doing here */
 392         if (RUNNING_ON_VALGRIND)
 393                 return;
 394 #endif
 395
 396         assert_se(get_process_comm(0, &comm) >= 0);
 397         log_info("comm = <%s>", comm);
 398         assert_se(strneq(comm, p, TASK_COMM_LEN-1));
 399
 400         assert_se(get_process_cmdline(0, 0, false, &cmdline) >= 0);
 401         /* we cannot expect cmdline to be renamed properly without privileges */
 402         if (geteuid() == 0) {
 403                 log_info("cmdline = <%s>", cmdline);
 404                 assert_se(strneq(p, cmdline, STRLEN("test-process-util")));
 405                 assert_se(startswith(p, cmdline));
 406         } else
 407                 log_info("cmdline = <%s> (not verified)", cmdline);
 408 }
 409
 410 static void test_rename_process_one(const char *p, int ret) {
 411         siginfo_t si;
 412         pid_t pid;
 413
 414         pid = fork();
 415         assert_se(pid >= 0);
 416
 417         if (pid == 0) {
 418                 /* child */
 419                 test_rename_process_now(p, ret);
 420                 _exit(EXIT_SUCCESS);
 421         }
 422
 423         assert_se(wait_for_terminate(pid, &si) >= 0);
 424         assert_se(si.si_code == CLD_EXITED);
 425         assert_se(si.si_status == EXIT_SUCCESS);
 426 }
 427
 428 static void test_rename_process_multi(void) {
 429         pid_t pid;
 430
 431         pid = fork();
 432         assert_se(pid >= 0);
 433
 434         if (pid > 0) {
 435                 siginfo_t si;
 436
 437                 assert_se(wait_for_terminate(pid, &si) >= 0);
 438                 assert_se(si.si_code == CLD_EXITED);
 439                 assert_se(si.si_status == EXIT_SUCCESS);
 440
 441                 return;
 442         }
 443
 444         /* child */
 445         test_rename_process_now("one", 1);
 446         test_rename_process_now("more", 0); /* longer than "one", hence truncated */
 447         (void) setresuid(99, 99, 99); /* change uid when running privileged */
 448         test_rename_process_now("time!", 0);
 449         test_rename_process_now("0", 1); /* shorter than "one", should fit */
 450         test_rename_process_one("", -EINVAL);
 451         test_rename_process_one(NULL, -EINVAL);
 452         _exit(EXIT_SUCCESS);
 453 }
 454
 455 static void test_rename_process(void) {
 456         test_rename_process_one(NULL, -EINVAL);
 457         test_rename_process_one("", -EINVAL);
 458         test_rename_process_one("foo", 1); /* should always fit */
 459         test_rename_process_one("this is a really really long process name, followed by some more words", 0); /* unlikely to fit */
 460         test_rename_process_one("1234567", 1); /* should always fit */
 461         test_rename_process_multi(); /* multiple invocations and dropped privileges */
 462 }
 463
 464 static void test_getpid_cached(void) {
 465         siginfo_t si;
 466         pid_t a, b, c, d, e, f, child;
 467
 468         a = raw_getpid();
 469         b = getpid_cached();
 470         c = getpid();
 471
 472         assert_se(a == b && a == c);
 473
 474         child = fork();
 475         assert_se(child >= 0);
 476
 477         if (child == 0) {
 478                 /* In child */
 479                 a = raw_getpid();
 480                 b = getpid_cached();
 481                 c = getpid();
 482
 483                 assert_se(a == b && a == c);
 484                 _exit(EXIT_SUCCESS);
 485         }
 486
 487         d = raw_getpid();
 488         e = getpid_cached();
 489         f = getpid();
 490
 491         assert_se(a == d && a == e && a == f);
 492
 493         assert_se(wait_for_terminate(child, &si) >= 0);
 494         assert_se(si.si_status == 0);
 495         assert_se(si.si_code == CLD_EXITED);
 496 }
 497
 498 #define MEASURE_ITERATIONS (10000000LLU)
 499
 500 static void test_getpid_measure(void) {
 501         unsigned long long i;
 502         usec_t t, q;
 503
 504         t = now(CLOCK_MONOTONIC);
 505         for (i = 0; i < MEASURE_ITERATIONS; i++)
 506                 (void) getpid();
 507         q = now(CLOCK_MONOTONIC) - t;
 508
 509         log_info(" glibc getpid(): %llu/s\n", (unsigned long long) (MEASURE_ITERATIONS*USEC_PER_SEC/q));
 510
 511         t = now(CLOCK_MONOTONIC);
 512         for (i = 0; i < MEASURE_ITERATIONS; i++)
 513                 (void) getpid_cached();
 514         q = now(CLOCK_MONOTONIC) - t;
 515
 516         log_info("getpid_cached(): %llu/s\n", (unsigned long long) (MEASURE_ITERATIONS*USEC_PER_SEC/q));
 517 }
 518
 519 static void test_safe_fork(void) {
 520         siginfo_t status;
 521         pid_t pid;
 522         int r;
 523
 524         BLOCK_SIGNALS(SIGCHLD);
 525
 526         r = safe_fork("(test-child)", FORK_RESET_SIGNALS|FORK_CLOSE_ALL_FDS|FORK_DEATHSIG|FORK_NULL_STDIO|FORK_REOPEN_LOG, &pid);
 527         assert_se(r >= 0);
 528
 529         if (r == 0) {
 530                 /* child */
 531                 usleep(100 * USEC_PER_MSEC);
 532
 533                 _exit(88);
 534         }
 535
 536         assert_se(wait_for_terminate(pid, &status) >= 0);
 537         assert_se(status.si_code == CLD_EXITED);
 538         assert_se(status.si_status == 88);
 539 }
 540
 541 static void test_pid_to_ptr(void) {
 542
 543         assert_se(PTR_TO_PID(NULL) == 0);
 544         assert_se(PID_TO_PTR(0) == NULL);
 545
 546         assert_se(PTR_TO_PID(PID_TO_PTR(1)) == 1);
 547         assert_se(PTR_TO_PID(PID_TO_PTR(2)) == 2);
 548         assert_se(PTR_TO_PID(PID_TO_PTR(-1)) == -1);
 549         assert_se(PTR_TO_PID(PID_TO_PTR(-2)) == -2);
 550
 551         assert_se(PTR_TO_PID(PID_TO_PTR(INT16_MAX)) == INT16_MAX);
 552         assert_se(PTR_TO_PID(PID_TO_PTR(INT16_MIN)) == INT16_MIN);
 553
 554 #if SIZEOF_PID_T >= 4
 555         assert_se(PTR_TO_PID(PID_TO_PTR(INT32_MAX)) == INT32_MAX);
 556         assert_se(PTR_TO_PID(PID_TO_PTR(INT32_MIN)) == INT32_MIN);
 557 #endif
 558 }
 559
 560 static void test_ioprio_class_from_to_string_one(const char *val, int expected) {
 561         assert_se(ioprio_class_from_string(val) == expected);
 562         if (expected >= 0) {
 563                 _cleanup_free_ char *s = NULL;
 564                 unsigned ret;
 565
 566                 assert_se(ioprio_class_to_string_alloc(expected, &s) == 0);
 567                 /* We sometimes get a class number and sometimes a number back */
 568                 assert_se(streq(s, val) ||
 569                           safe_atou(val, &ret) == 0);
 570         }
 571 }
 572
 573 static void test_ioprio_class_from_to_string(void) {
 574         test_ioprio_class_from_to_string_one("none", IOPRIO_CLASS_NONE);
 575         test_ioprio_class_from_to_string_one("realtime", IOPRIO_CLASS_RT);
 576         test_ioprio_class_from_to_string_one("best-effort", IOPRIO_CLASS_BE);
 577         test_ioprio_class_from_to_string_one("idle", IOPRIO_CLASS_IDLE);
 578         test_ioprio_class_from_to_string_one("0", 0);
 579         test_ioprio_class_from_to_string_one("1", 1);
 580         test_ioprio_class_from_to_string_one("7", 7);
 581         test_ioprio_class_from_to_string_one("8", 8);
 582         test_ioprio_class_from_to_string_one("9", -1);
 583         test_ioprio_class_from_to_string_one("-1", -1);
 584 }
 585
 586 int main(int argc, char *argv[]) {
 587         log_set_max_level(LOG_DEBUG);
 588         log_parse_environment();
 589         log_open();
 590
 591         saved_argc = argc;
 592         saved_argv = argv;
 593
 594         if (argc > 1) {
 595                 pid_t pid = 0;
 596
 597                 (void) parse_pid(argv[1], &pid);
 598                 test_get_process_comm(pid);
 599         } else {
 600                 TEST_REQ_RUNNING_SYSTEMD(test_get_process_comm(1));
 601                 test_get_process_comm(getpid());
 602         }
 603
 604         test_get_process_comm_escape();
 605         test_pid_is_unwaited();
 606         test_pid_is_alive();
 607         test_personality();
 608         test_get_process_cmdline_harder();
 609         test_rename_process();
 610         test_getpid_cached();
 611         test_getpid_measure();
 612         test_safe_fork();
 613         test_pid_to_ptr();
 614         test_ioprio_class_from_to_string();
 615
 616         return 0;
 617 }