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test-process-util: add test that prints all cmdlines

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This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2021-04-01 16:46:01 +02:00
parent 99009ed0f4
commit 510c7a953e
1 changed files with 49 additions and 0 deletions
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49
src/test/test-process-util.c
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@ -15,6 +15,8 @@
#include "alloc-util.h"
#include "architecture.h"
#include "errno-util.h"
#include "errno-list.h"
#include "dirent-util.h"
#include "fd-util.h"
#include "log.h"
#include "macro.h"
@ -90,6 +92,52 @@ static void test_get_process_comm(pid_t pid) {
log_info("PID"PID_FMT" $PATH: '%s'", pid, strna(i));
}
static void test_get_process_cmdline_one(pid_t pid) {
_cleanup_free_ char *c = NULL, *d = NULL, *e = NULL, *f = NULL, *g = NULL, *h = NULL;
int r;
r = get_process_cmdline(pid, SIZE_MAX, 0, &c);
log_info("PID "PID_FMT": %s", pid, r >= 0 ? c : errno_to_name(r));
r = get_process_cmdline(pid, SIZE_MAX, PROCESS_CMDLINE_COMM_FALLBACK, &d);
log_info(" %s", r >= 0 ? d : errno_to_name(r));
r = get_process_cmdline(pid, SIZE_MAX, PROCESS_CMDLINE_QUOTE, &e);
log_info(" %s", r >= 0 ? e : errno_to_name(r));
r = get_process_cmdline(pid, SIZE_MAX, PROCESS_CMDLINE_QUOTE | PROCESS_CMDLINE_COMM_FALLBACK, &f);
log_info(" %s", r >= 0 ? f : errno_to_name(r));
r = get_process_cmdline(pid, SIZE_MAX, PROCESS_CMDLINE_QUOTE_POSIX, &g);
log_info(" %s", r >= 0 ? g : errno_to_name(r));
r = get_process_cmdline(pid, SIZE_MAX, PROCESS_CMDLINE_QUOTE_POSIX | PROCESS_CMDLINE_COMM_FALLBACK, &h);
log_info(" %s", r >= 0 ? h : errno_to_name(r));
}
static void test_get_process_cmdline(void) {
_cleanup_closedir_ DIR *d = NULL;
struct dirent *de;
log_info("/* %s */", __func__);
assert_se(d = opendir("/proc"));
FOREACH_DIRENT(de, d, return) {
pid_t pid;
dirent_ensure_type(d, de);
if (de->d_type != DT_DIR)
continue;
if (parse_pid(de->d_name, &pid) < 0)
continue;
test_get_process_cmdline_one(pid);
}
}
static void test_get_process_comm_escape_one(const char *input, const char *output) {
_cleanup_free_ char *n = NULL;
@ -808,6 +856,7 @@ int main(int argc, char *argv[]) {
}
test_get_process_comm_escape();
test_get_process_cmdline();
test_pid_is_unwaited();
test_pid_is_alive();
test_personality();