/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include #include #include #include #include #include #include #if HAVE_VALGRIND_VALGRIND_H #include #endif #include "alloc-util.h" #include "architecture.h" #include "errno-util.h" #include "fd-util.h" #include "log.h" #include "macro.h" #include "missing_sched.h" #include "missing_syscall.h" #include "parse-util.h" #include "process-util.h" #include "rlimit-util.h" #include "signal-util.h" #include "stdio-util.h" #include "string-util.h" #include "terminal-util.h" #include "tests.h" #include "user-util.h" #include "util.h" #include "virt.h" static void test_get_process_comm(pid_t pid) { struct stat st; _cleanup_free_ char *a = NULL, *c = NULL, *d = NULL, *f = NULL, *i = NULL; _cleanup_free_ char *env = NULL; char path[STRLEN("/proc//comm") + DECIMAL_STR_MAX(pid_t)]; pid_t e; uid_t u; gid_t g; dev_t h; int r; xsprintf(path, "/proc/"PID_FMT"/comm", pid); if (stat(path, &st) == 0) { assert_se(get_process_comm(pid, &a) >= 0); log_info("PID"PID_FMT" comm: '%s'", pid, a); } else log_warning("%s not exist.", path); assert_se(get_process_cmdline(pid, 0, PROCESS_CMDLINE_COMM_FALLBACK, &c) >= 0); log_info("PID"PID_FMT" cmdline: '%s'", pid, c); assert_se(get_process_cmdline(pid, 8, 0, &d) >= 0); log_info("PID"PID_FMT" cmdline truncated to 8: '%s'", pid, d); free(d); assert_se(get_process_cmdline(pid, 1, 0, &d) >= 0); log_info("PID"PID_FMT" cmdline truncated to 1: '%s'", pid, d); assert_se(get_process_ppid(pid, &e) >= 0); log_info("PID"PID_FMT" PPID: "PID_FMT, pid, e); assert_se(pid == 1 ? e == 0 : e > 0); assert_se(is_kernel_thread(pid) == 0 || pid != 1); r = get_process_exe(pid, &f); assert_se(r >= 0 || r == -EACCES); log_info("PID"PID_FMT" exe: '%s'", pid, strna(f)); assert_se(get_process_uid(pid, &u) == 0); log_info("PID"PID_FMT" UID: "UID_FMT, pid, u); assert_se(get_process_gid(pid, &g) == 0); log_info("PID"PID_FMT" GID: "GID_FMT, pid, g); r = get_process_environ(pid, &env); assert_se(r >= 0 || r == -EACCES); log_info("PID"PID_FMT" strlen(environ): %zi", pid, env ? (ssize_t)strlen(env) : (ssize_t)-errno); if (!detect_container()) assert_se(get_ctty_devnr(pid, &h) == -ENXIO || pid != 1); (void) getenv_for_pid(pid, "PATH", &i); log_info("PID"PID_FMT" $PATH: '%s'", pid, strna(i)); } static void test_get_process_comm_escape_one(const char *input, const char *output) { _cleanup_free_ char *n = NULL; log_info("input: <%s> — output: <%s>", input, output); assert_se(prctl(PR_SET_NAME, input) >= 0); assert_se(get_process_comm(0, &n) >= 0); log_info("got: <%s>", n); assert_se(streq_ptr(n, output)); } static void test_get_process_comm_escape(void) { _cleanup_free_ char *saved = NULL; assert_se(get_process_comm(0, &saved) >= 0); test_get_process_comm_escape_one("", ""); test_get_process_comm_escape_one("foo", "foo"); test_get_process_comm_escape_one("012345678901234", "012345678901234"); test_get_process_comm_escape_one("0123456789012345", "012345678901234"); test_get_process_comm_escape_one("äöüß", "\\303\\244\\303\\266\\303\\274\\303\\237"); test_get_process_comm_escape_one("xäöüß", "x\\303\\244\\303\\266\\303\\274\\303\\237"); test_get_process_comm_escape_one("xxäöüß", "xx\\303\\244\\303\\266\\303\\274\\303\\237"); test_get_process_comm_escape_one("xxxäöüß", "xxx\\303\\244\\303\\266\\303\\274\\303\\237"); test_get_process_comm_escape_one("xxxxäöüß", "xxxx\\303\\244\\303\\266\\303\\274\\303\\237"); test_get_process_comm_escape_one("xxxxxäöüß", "xxxxx\\303\\244\\303\\266\\303\\274\\303\\237"); assert_se(prctl(PR_SET_NAME, saved) >= 0); } static void test_pid_is_unwaited(void) { pid_t pid; pid = fork(); assert_se(pid >= 0); if (pid == 0) { _exit(EXIT_SUCCESS); } else { int status; waitpid(pid, &status, 0); assert_se(!pid_is_unwaited(pid)); } assert_se(pid_is_unwaited(getpid_cached())); assert_se(!pid_is_unwaited(-1)); } static void test_pid_is_alive(void) { pid_t pid; pid = fork(); assert_se(pid >= 0); if (pid == 0) { _exit(EXIT_SUCCESS); } else { int status; waitpid(pid, &status, 0); assert_se(!pid_is_alive(pid)); } assert_se(pid_is_alive(getpid_cached())); assert_se(!pid_is_alive(-1)); } static void test_personality(void) { assert_se(personality_to_string(PER_LINUX)); assert_se(!personality_to_string(PERSONALITY_INVALID)); assert_se(streq(personality_to_string(PER_LINUX), architecture_to_string(native_architecture()))); assert_se(personality_from_string(personality_to_string(PER_LINUX)) == PER_LINUX); assert_se(personality_from_string(architecture_to_string(native_architecture())) == PER_LINUX); #ifdef __x86_64__ assert_se(streq_ptr(personality_to_string(PER_LINUX), "x86-64")); assert_se(streq_ptr(personality_to_string(PER_LINUX32), "x86")); assert_se(personality_from_string("x86-64") == PER_LINUX); assert_se(personality_from_string("x86") == PER_LINUX32); assert_se(personality_from_string("ia64") == PERSONALITY_INVALID); assert_se(personality_from_string(NULL) == PERSONALITY_INVALID); assert_se(personality_from_string(personality_to_string(PER_LINUX32)) == PER_LINUX32); #endif } static void test_get_process_cmdline_harder(void) { char path[] = "/tmp/test-cmdlineXXXXXX"; _cleanup_close_ int fd = -1; _cleanup_free_ char *line = NULL; pid_t pid; if (geteuid() != 0) { log_info("Skipping %s: not root", __func__); return; } if (!have_namespaces()) { log_notice("Testing without namespaces, skipping %s", __func__); return; } #if HAVE_VALGRIND_VALGRIND_H /* valgrind patches open(/proc//cmdline) * so, test_get_process_cmdline_harder fails always * See https://github.com/systemd/systemd/pull/3555#issuecomment-226564908 */ if (RUNNING_ON_VALGRIND) { log_info("Skipping %s: running on valgrind", __func__); return; } #endif pid = fork(); if (pid > 0) { siginfo_t si; (void) wait_for_terminate(pid, &si); assert_se(si.si_code == CLD_EXITED); assert_se(si.si_status == 0); return; } assert_se(pid == 0); assert_se(unshare(CLONE_NEWNS) >= 0); if (mount(NULL, "/", NULL, MS_SLAVE|MS_REC, NULL) < 0) { log_warning_errno(errno, "mount(..., \"/\", MS_SLAVE|MS_REC, ...) failed: %m"); assert_se(IN_SET(errno, EPERM, EACCES)); return; } fd = mkostemp(path, O_CLOEXEC); assert_se(fd >= 0); /* Note that we don't unmount the following bind-mount at the end of the test because the kernel * will clear up its /proc/PID/ hierarchy automatically as soon as the test stops. */ if (mount(path, "/proc/self/cmdline", "bind", MS_BIND, NULL) < 0) { /* This happens under selinux… Abort the test in this case. */ log_warning_errno(errno, "mount(..., \"/proc/self/cmdline\", \"bind\", ...) failed: %m"); assert_se(IN_SET(errno, EPERM, EACCES)); return; } assert_se(unlink(path) >= 0); assert_se(prctl(PR_SET_NAME, "testa") >= 0); assert_se(get_process_cmdline(getpid_cached(), SIZE_MAX, 0, &line) == -ENOENT); assert_se(get_process_cmdline(getpid_cached(), SIZE_MAX, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "[testa]")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 0, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); log_info("'%s'", line); assert_se(streq(line, "")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 1, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 2, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "[…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 3, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "[t…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 4, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "[te…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 5, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "[tes…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 6, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "[test…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 7, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "[testa]")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 8, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "[testa]")); line = mfree(line); assert_se(write(fd, "foo\0bar", 8) == 8); assert_se(get_process_cmdline(getpid_cached(), SIZE_MAX, 0, &line) >= 0); log_info("'%s'", line); assert_se(streq(line, "foo bar")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), SIZE_MAX, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo bar")); line = mfree(line); assert_se(write(fd, "quux", 4) == 4); assert_se(get_process_cmdline(getpid_cached(), SIZE_MAX, 0, &line) >= 0); log_info("'%s'", line); assert_se(streq(line, "foo bar quux")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), SIZE_MAX, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo bar quux")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 1, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 2, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "f…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 3, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "fo…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 4, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 5, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo …")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 6, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo b…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 7, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo ba…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 8, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo bar…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 9, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo bar …")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 10, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo bar q…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 11, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo bar qu…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 12, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo bar quux")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 13, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo bar quux")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 14, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo bar quux")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 1000, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "foo bar quux")); line = mfree(line); assert_se(ftruncate(fd, 0) >= 0); assert_se(prctl(PR_SET_NAME, "aaaa bbbb cccc") >= 0); assert_se(get_process_cmdline(getpid_cached(), SIZE_MAX, 0, &line) == -ENOENT); assert_se(get_process_cmdline(getpid_cached(), SIZE_MAX, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "[aaaa bbbb cccc]")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 10, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "[aaaa bbb…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 11, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "[aaaa bbbb…")); line = mfree(line); assert_se(get_process_cmdline(getpid_cached(), 12, PROCESS_CMDLINE_COMM_FALLBACK, &line) >= 0); assert_se(streq(line, "[aaaa bbbb …")); line = mfree(line); safe_close(fd); _exit(EXIT_SUCCESS); } static void test_rename_process_now(const char *p, int ret) { _cleanup_free_ char *comm = NULL, *cmdline = NULL; int r; r = rename_process(p); assert_se(r == ret || (ret == 0 && r >= 0) || (ret > 0 && r > 0)); if (r < 0) return; #if HAVE_VALGRIND_VALGRIND_H /* see above, valgrind is weird, we can't verify what we are doing here */ if (RUNNING_ON_VALGRIND) return; #endif assert_se(get_process_comm(0, &comm) >= 0); log_info("comm = <%s>", comm); assert_se(strneq(comm, p, TASK_COMM_LEN-1)); /* We expect comm to be at most 16 bytes (TASK_COMM_LEN). The kernel may raise this limit in the * future. We'd only check the initial part, at least until we recompile, but this will still pass. */ r = get_process_cmdline(0, SIZE_MAX, 0, &cmdline); assert_se(r >= 0); /* we cannot expect cmdline to be renamed properly without privileges */ if (geteuid() == 0) { if (r == 0 && detect_container() > 0) log_info("cmdline = <%s> (not verified, Running in unprivileged container?)", cmdline); else { log_info("cmdline = <%s>", cmdline); assert_se(strneq(p, cmdline, STRLEN("test-process-util"))); assert_se(startswith(p, cmdline)); } } else log_info("cmdline = <%s> (not verified)", cmdline); } static void test_rename_process_one(const char *p, int ret) { siginfo_t si; pid_t pid; pid = fork(); assert_se(pid >= 0); if (pid == 0) { /* child */ test_rename_process_now(p, ret); _exit(EXIT_SUCCESS); } assert_se(wait_for_terminate(pid, &si) >= 0); assert_se(si.si_code == CLD_EXITED); assert_se(si.si_status == EXIT_SUCCESS); } static void test_rename_process_multi(void) { pid_t pid; pid = fork(); assert_se(pid >= 0); if (pid > 0) { siginfo_t si; assert_se(wait_for_terminate(pid, &si) >= 0); assert_se(si.si_code == CLD_EXITED); assert_se(si.si_status == EXIT_SUCCESS); return; } /* child */ test_rename_process_now("one", 1); test_rename_process_now("more", 0); /* longer than "one", hence truncated */ (void) setresuid(99, 99, 99); /* change uid when running privileged */ test_rename_process_now("time!", 0); test_rename_process_now("0", 1); /* shorter than "one", should fit */ test_rename_process_one("", -EINVAL); test_rename_process_one(NULL, -EINVAL); _exit(EXIT_SUCCESS); } static void test_rename_process(void) { test_rename_process_one(NULL, -EINVAL); test_rename_process_one("", -EINVAL); test_rename_process_one("foo", 1); /* should always fit */ test_rename_process_one("this is a really really long process name, followed by some more words", 0); /* unlikely to fit */ test_rename_process_one("1234567", 1); /* should always fit */ test_rename_process_multi(); /* multiple invocations and dropped privileges */ } static void test_getpid_cached(void) { siginfo_t si; pid_t a, b, c, d, e, f, child; a = raw_getpid(); b = getpid_cached(); c = getpid(); assert_se(a == b && a == c); child = fork(); assert_se(child >= 0); if (child == 0) { /* In child */ a = raw_getpid(); b = getpid_cached(); c = getpid(); assert_se(a == b && a == c); _exit(EXIT_SUCCESS); } d = raw_getpid(); e = getpid_cached(); f = getpid(); assert_se(a == d && a == e && a == f); assert_se(wait_for_terminate(child, &si) >= 0); assert_se(si.si_status == 0); assert_se(si.si_code == CLD_EXITED); } #define MEASURE_ITERATIONS (10000000LLU) static void test_getpid_measure(void) { unsigned long long i; usec_t t, q; t = now(CLOCK_MONOTONIC); for (i = 0; i < MEASURE_ITERATIONS; i++) (void) getpid(); q = now(CLOCK_MONOTONIC) - t; log_info(" glibc getpid(): %lf µs each\n", (double) q / MEASURE_ITERATIONS); t = now(CLOCK_MONOTONIC); for (i = 0; i < MEASURE_ITERATIONS; i++) (void) getpid_cached(); q = now(CLOCK_MONOTONIC) - t; log_info("getpid_cached(): %lf µs each\n", (double) q / MEASURE_ITERATIONS); } static void test_safe_fork(void) { siginfo_t status; pid_t pid; int r; BLOCK_SIGNALS(SIGCHLD); r = safe_fork("(test-child)", FORK_RESET_SIGNALS|FORK_CLOSE_ALL_FDS|FORK_DEATHSIG|FORK_NULL_STDIO|FORK_REOPEN_LOG, &pid); assert_se(r >= 0); if (r == 0) { /* child */ usleep(100 * USEC_PER_MSEC); _exit(88); } assert_se(wait_for_terminate(pid, &status) >= 0); assert_se(status.si_code == CLD_EXITED); assert_se(status.si_status == 88); } static void test_pid_to_ptr(void) { assert_se(PTR_TO_PID(NULL) == 0); assert_se(PID_TO_PTR(0) == NULL); assert_se(PTR_TO_PID(PID_TO_PTR(1)) == 1); assert_se(PTR_TO_PID(PID_TO_PTR(2)) == 2); assert_se(PTR_TO_PID(PID_TO_PTR(-1)) == -1); assert_se(PTR_TO_PID(PID_TO_PTR(-2)) == -2); assert_se(PTR_TO_PID(PID_TO_PTR(INT16_MAX)) == INT16_MAX); assert_se(PTR_TO_PID(PID_TO_PTR(INT16_MIN)) == INT16_MIN); assert_se(PTR_TO_PID(PID_TO_PTR(INT32_MAX)) == INT32_MAX); assert_se(PTR_TO_PID(PID_TO_PTR(INT32_MIN)) == INT32_MIN); } static void test_ioprio_class_from_to_string_one(const char *val, int expected) { assert_se(ioprio_class_from_string(val) == expected); if (expected >= 0) { _cleanup_free_ char *s = NULL; unsigned ret; assert_se(ioprio_class_to_string_alloc(expected, &s) == 0); /* We sometimes get a class number and sometimes a number back */ assert_se(streq(s, val) || safe_atou(val, &ret) == 0); } } static void test_ioprio_class_from_to_string(void) { test_ioprio_class_from_to_string_one("none", IOPRIO_CLASS_NONE); test_ioprio_class_from_to_string_one("realtime", IOPRIO_CLASS_RT); test_ioprio_class_from_to_string_one("best-effort", IOPRIO_CLASS_BE); test_ioprio_class_from_to_string_one("idle", IOPRIO_CLASS_IDLE); test_ioprio_class_from_to_string_one("0", 0); test_ioprio_class_from_to_string_one("1", 1); test_ioprio_class_from_to_string_one("7", 7); test_ioprio_class_from_to_string_one("8", 8); test_ioprio_class_from_to_string_one("9", -EINVAL); test_ioprio_class_from_to_string_one("-1", -EINVAL); } static void test_setpriority_closest(void) { int r; r = safe_fork("(test-setprio)", FORK_RESET_SIGNALS|FORK_CLOSE_ALL_FDS|FORK_DEATHSIG|FORK_WAIT|FORK_LOG, NULL); assert_se(r >= 0); if (r == 0) { bool full_test; int p, q; /* child */ /* rlimit of 30 equals nice level of -10 */ if (setrlimit(RLIMIT_NICE, &RLIMIT_MAKE_CONST(30)) < 0) { /* If this fails we are probably unprivileged or in a userns of some kind, let's skip * the full test */ assert_se(ERRNO_IS_PRIVILEGE(errno)); full_test = false; } else { assert_se(setresgid(GID_NOBODY, GID_NOBODY, GID_NOBODY) >= 0); assert_se(setresuid(UID_NOBODY, UID_NOBODY, UID_NOBODY) >= 0); full_test = true; } errno = 0; p = getpriority(PRIO_PROCESS, 0); assert_se(errno == 0); /* It should always be possible to set our nice level to the current one */ assert_se(setpriority_closest(p) > 0); errno = 0; q = getpriority(PRIO_PROCESS, 0); assert_se(errno == 0 && p == q); /* It should also be possible to set the nice level to one higher */ if (p < PRIO_MAX-1) { assert_se(setpriority_closest(++p) > 0); errno = 0; q = getpriority(PRIO_PROCESS, 0); assert_se(errno == 0 && p == q); } /* It should also be possible to set the nice level to two higher */ if (p < PRIO_MAX-1) { assert_se(setpriority_closest(++p) > 0); errno = 0; q = getpriority(PRIO_PROCESS, 0); assert_se(errno == 0 && p == q); } if (full_test) { /* These two should work, given the RLIMIT_NICE we set above */ assert_se(setpriority_closest(-10) > 0); errno = 0; q = getpriority(PRIO_PROCESS, 0); assert_se(errno == 0 && q == -10); assert_se(setpriority_closest(-9) > 0); errno = 0; q = getpriority(PRIO_PROCESS, 0); assert_se(errno == 0 && q == -9); /* This should succeed but should be clamped to the limit */ assert_se(setpriority_closest(-11) == 0); errno = 0; q = getpriority(PRIO_PROCESS, 0); assert_se(errno == 0 && q == -10); assert_se(setpriority_closest(-8) > 0); errno = 0; q = getpriority(PRIO_PROCESS, 0); assert_se(errno == 0 && q == -8); /* This should succeed but should be clamped to the limit */ assert_se(setpriority_closest(-12) == 0); errno = 0; q = getpriority(PRIO_PROCESS, 0); assert_se(errno == 0 && q == -10); } _exit(EXIT_SUCCESS); } } int main(int argc, char *argv[]) { test_setup_logging(LOG_DEBUG); save_argc_argv(argc, argv); if (argc > 1) { pid_t pid = 0; (void) parse_pid(argv[1], &pid); test_get_process_comm(pid); } else { TEST_REQ_RUNNING_SYSTEMD(test_get_process_comm(1)); test_get_process_comm(getpid()); } test_get_process_comm_escape(); test_pid_is_unwaited(); test_pid_is_alive(); test_personality(); test_get_process_cmdline_harder(); test_rename_process(); test_getpid_cached(); test_getpid_measure(); test_safe_fork(); test_pid_to_ptr(); test_ioprio_class_from_to_string(); test_setpriority_closest(); return 0; }