2 This file is part of systemd.
4 Copyright 2010 Lennart Poettering
5 Copyright 2013 Thomas H.P. Andersen
7 systemd is free software; you can redistribute it and/or modify it
8 under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 2.1 of the License, or
10 (at your option) any later version.
12 systemd is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with systemd; If not, see <http://www.gnu.org/licenses/>.
21 #include <sys/types.h>
26 #include "process-util.h"
31 #include "terminal-util.h"
33 static void test_get_process_comm(void) {
35 _cleanup_free_ char *a = NULL, *c = NULL, *d = NULL, *f = NULL, *i = NULL, *cwd = NULL, *root = NULL;
36 _cleanup_free_ char *env = NULL;
44 if (stat("/proc/1/comm", &st) == 0) {
45 assert_se(get_process_comm(1, &a) >= 0);
46 log_info("pid1 comm: '%s'", a);
48 log_warning("/proc/1/comm does not exist.");
51 assert_se(get_process_cmdline(1, 0, true, &c) >= 0);
52 log_info("pid1 cmdline: '%s'", c);
54 assert_se(get_process_cmdline(1, 8, false, &d) >= 0);
55 log_info("pid1 cmdline truncated: '%s'", d);
57 assert_se(get_parent_of_pid(1, &e) >= 0);
58 log_info("pid1 ppid: "PID_FMT, e);
61 assert_se(is_kernel_thread(1) == 0);
63 r = get_process_exe(1, &f);
64 assert_se(r >= 0 || r == -EACCES);
65 log_info("pid1 exe: '%s'", strna(f));
67 assert_se(get_process_uid(1, &u) == 0);
68 log_info("pid1 uid: "UID_FMT, u);
71 assert_se(get_process_gid(1, &g) == 0);
72 log_info("pid1 gid: "GID_FMT, g);
77 r = get_process_cwd(me, &cwd);
78 assert_se(r >= 0 || r == -EACCES);
79 log_info("pid1 cwd: '%s'", cwd);
81 r = get_process_root(me, &root);
82 assert_se(r >= 0 || r == -EACCES);
83 log_info("pid1 root: '%s'", root);
85 r = get_process_environ(me, &env);
86 assert_se(r >= 0 || r == -EACCES);
87 log_info("self strlen(environ): '%zu'", strlen(env));
89 if (!detect_container(NULL))
90 assert_se(get_ctty_devnr(1, &h) == -ENOENT);
92 getenv_for_pid(1, "PATH", &i);
93 log_info("pid1 $PATH: '%s'", strna(i));
96 static void test_pid_is_unwaited(void) {
106 waitpid(pid, &status, 0);
107 assert_se(!pid_is_unwaited(pid));
109 assert_se(pid_is_unwaited(getpid()));
110 assert_se(!pid_is_unwaited(-1));
113 static void test_pid_is_alive(void) {
123 waitpid(pid, &status, 0);
124 assert_se(!pid_is_alive(pid));
126 assert_se(pid_is_alive(getpid()));
127 assert_se(!pid_is_alive(-1));
130 int main(int argc, char *argv[]) {
131 log_parse_environment();
134 test_get_process_comm();
135 test_pid_is_unwaited();