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, true, &c) >= 0);
log_info("PID"PID_FMT" cmdline: '%s'", pid, c);
assert_se(get_process_cmdline(pid, 8, false, &d) >= 0);
log_info("PID"PID_FMT" cmdline truncated to 8: '%s'", pid, d);
free(d);
assert_se(get_process_cmdline(pid, 1, false, &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(u == 0 || pid != 1);
assert_se(get_process_gid(pid, &g) == 0);
log_info("PID"PID_FMT" GID: "GID_FMT, pid, g);
assert_se(g == 0 || pid != 1);
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);
getenv_for_pid(pid, "PATH", &i);
log_info("PID"PID_FMT" $PATH: '%s'", pid, strna(i));
}
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));
}
