/*** This file is part of systemd. Copyright 2010 Lennart Poettering Copyright 2013 Thomas H.P. Andersen systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include <sys/stat.h> #include <sys/types.h> #include <sys/wait.h> #include <unistd.h> #include "alloc-util.h" #include "log.h" #include "macro.h" #include "process-util.h" #include "string-util.h" #include "terminal-util.h" #include "util.h" #include "virt.h" static void test_get_process_comm(void) { struct stat st; _cleanup_free_ char *a = NULL, *c = NULL, *d = NULL, *f = NULL, *i = NULL, *cwd = NULL, *root = NULL; _cleanup_free_ char *env = NULL; pid_t e; uid_t u; gid_t g; dev_t h; int r; pid_t me; if (stat("/proc/1/comm", &st) == 0) { assert_se(get_process_comm(1, &a) >= 0); log_info("pid1 comm: '%s'", a); } else log_warning("/proc/1/comm does not exist."); assert_se(get_process_cmdline(1, 0, true, &c) >= 0); log_info("pid1 cmdline: '%s'", c); assert_se(get_process_cmdline(1, 8, false, &d) >= 0); log_info("pid1 cmdline truncated: '%s'", d); assert_se(get_process_ppid(1, &e) >= 0); log_info("pid1 ppid: "PID_FMT, e); assert_se(e == 0); assert_se(is_kernel_thread(1) == 0); r = get_process_exe(1, &f); assert_se(r >= 0 || r == -EACCES); log_info("pid1 exe: '%s'", strna(f)); assert_se(get_process_uid(1, &u) == 0); log_info("pid1 uid: "UID_FMT, u); assert_se(u == 0); assert_se(get_process_gid(1, &g) == 0); log_info("pid1 gid: "GID_FMT, g); assert_se(g == 0); me = getpid(); r = get_process_cwd(me, &cwd); assert_se(r >= 0 || r == -EACCES); log_info("pid1 cwd: '%s'", cwd); r = get_process_root(me, &root); assert_se(r >= 0 || r == -EACCES); log_info("pid1 root: '%s'", root); r = get_process_environ(me, &env); assert_se(r >= 0 || r == -EACCES); log_info("self strlen(environ): '%zu'", strlen(env)); if (!detect_container()) assert_se(get_ctty_devnr(1, &h) == -ENXIO); getenv_for_pid(1, "PATH", &i); log_info("pid1 $PATH: '%s'", strna(i)); } 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())); 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())); assert_se(!pid_is_alive(-1)); } int main(int argc, char *argv[]) { log_parse_environment(); log_open(); test_get_process_comm(); test_pid_is_unwaited(); test_pid_is_alive(); return 0; }