[apple/xnu.git] / tests / sigchld_return.c

#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/wait.h>
#include <sys/types.h>

#include <darwintest.h>

T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));

static int exitcode = 0x6789BEEF;
static int should_exit = 0;

static void
handler(int sig, siginfo_t *sip, __unused void *uconp)
{
	/* Should handle the SIGCHLD signal */
	T_ASSERT_EQ_INT(sig, SIGCHLD, "Captured signal returns 0x%x, expected SIGCHLD (0x%x).", sig, SIGCHLD);
	T_QUIET; T_ASSERT_NOTNULL(sip, "siginfo_t returned NULL but should have returned data.");
	T_ASSERT_EQ_INT(sip->si_code, CLD_EXITED, "si_code returns 0x%x, expected CLD_EXITED (0x%x).", sip->si_code, CLD_EXITED);
	T_ASSERT_EQ_INT(sip->si_status, exitcode, "si_status returns 0x%08X, expected the child's exit code (0x%08X).", sip->si_status, exitcode);
	should_exit = 1;
}


T_DECL(sigchldreturn, "checks that a child process exited with an exitcode returns correctly to parent", T_META_CHECK_LEAKS(false))
{
	struct sigaction act;
	int pid;

	act.sa_sigaction = handler;
	act.sa_flags = SA_SIGINFO;

	/* Set action for signal */
	T_QUIET; T_ASSERT_POSIX_SUCCESS(sigaction(SIGCHLD, &act, NULL), "Calling sigaction() failed for SIGCHLD");

	/* Now fork a child that just exits */
	pid = fork();
	T_QUIET; T_ASSERT_NE_INT(pid, -1, "fork() failed!");

	if (pid == 0) {
		/* Child process! */
		exit(exitcode);
	}

	/* Main program that did the fork */
	/* We should process the signal, then exit */
	while (!should_exit) {
		sleep(1);
	}
}

T_DECL(sigabrt_test, "check that child process' exitcode contains signum = SIGABRT", T_META_CHECK_LEAKS(false))
{
	int ret;
	siginfo_t siginfo;
	pid_t pid = fork();
	int expected_signal = SIGABRT;
	if (pid == 0) {
		/* child exits with SIGABRT */
		T_LOG("In child process. Now signalling SIGABRT");
		(void)signal(SIGABRT, SIG_DFL);
		raise(SIGABRT);
		T_LOG("Child should not print");
	} else {
		ret = waitid(P_PID, (id_t) pid, &siginfo, WEXITED);
		T_ASSERT_POSIX_SUCCESS(0, "waitid");
		if (siginfo.si_signo != SIGCHLD) {
			T_FAIL("Signal was not SIGCHLD.");
		}
		T_LOG("si_status = 0x%x , expected = 0x%x \n", siginfo.si_status, expected_signal);
		if (siginfo.si_status != expected_signal) {
			T_FAIL("Unexpected exitcode");
		}
	}
}

T_DECL(sigkill_test, "check that child process' exitcode contains signum = SIGKILL", T_META_CHECK_LEAKS(false))
{
	int ret;
	siginfo_t siginfo;
	pid_t pid = fork();
	int expected_signal = SIGKILL;
	if (pid == 0) {
		/* child exits with SIGKILL */
		T_LOG("In child process. Now signalling SIGKILL");
		raise(SIGKILL);
		T_LOG("Child should not print");
	} else {
		ret = waitid(P_PID, (id_t) pid, &siginfo, WEXITED);
		T_ASSERT_POSIX_SUCCESS(0, "waitid");
		if (siginfo.si_signo != SIGCHLD) {
			T_FAIL("Signal was not SIGCHLD.");
		}
		T_LOG("si_status = 0x%x , expected = 0x%x \n", siginfo.si_status, expected_signal);
		if (siginfo.si_status != expected_signal) {
			T_FAIL("Unexpected exitcode");
		}
	}
}
Commit	Line	Data
5ba3f43e A	1	#include <signal.h>
	2	#include <stdio.h>
	3	#include <stdlib.h>
	4	#include <unistd.h>
	5	#include <errno.h>
f427ee49 A	6	#include <sys/wait.h>
f427ee49 A	7	#include <sys/types.h>
5ba3f43e A	8
	9	#include <darwintest.h>
	10
cb323159	11	T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
5ba3f43e A	12
5ba3f43e A	13	static int exitcode = 0x6789BEEF;
f427ee49	14	static int should_exit = 0;
5ba3f43e	15
f427ee49	16	static void
0a7de745	17	handler(int sig, siginfo_t sip, __unused void uconp)
5ba3f43e	18	{
0a7de745 A	19	/* Should handle the SIGCHLD signal */
	20	T_ASSERT_EQ_INT(sig, SIGCHLD, "Captured signal returns 0x%x, expected SIGCHLD (0x%x).", sig, SIGCHLD);
	21	T_QUIET; T_ASSERT_NOTNULL(sip, "siginfo_t returned NULL but should have returned data.");
	22	T_ASSERT_EQ_INT(sip->si_code, CLD_EXITED, "si_code returns 0x%x, expected CLD_EXITED (0x%x).", sip->si_code, CLD_EXITED);
	23	T_ASSERT_EQ_INT(sip->si_status, exitcode, "si_status returns 0x%08X, expected the child's exit code (0x%08X).", sip->si_status, exitcode);
	24	should_exit = 1;
5ba3f43e A	25	}
	26
	27
	28	T_DECL(sigchldreturn, "checks that a child process exited with an exitcode returns correctly to parent", T_META_CHECK_LEAKS(false))
	29	{
0a7de745 A	30	struct sigaction act;
0a7de745 A	31	int pid;
5ba3f43e	32
0a7de745 A	33	act.sa_sigaction = handler;
0a7de745 A	34	act.sa_flags = SA_SIGINFO;
5ba3f43e	35
0a7de745 A	36	/* Set action for signal */
0a7de745 A	37	T_QUIET; T_ASSERT_POSIX_SUCCESS(sigaction(SIGCHLD, &act, NULL), "Calling sigaction() failed for SIGCHLD");
5ba3f43e	38
0a7de745 A	39	/* Now fork a child that just exits */
	40	pid = fork();
	41	T_QUIET; T_ASSERT_NE_INT(pid, -1, "fork() failed!");
5ba3f43e	42
0a7de745 A	43	if (pid == 0) {
	44	/* Child process! */
	45	exit(exitcode);
	46	}
5ba3f43e	47
0a7de745 A	48	/* Main program that did the fork */
	49	/* We should process the signal, then exit */
	50	while (!should_exit) {
	51	sleep(1);
	52	}
5ba3f43e	53	}
f427ee49 A	54
	55	T_DECL(sigabrt_test, "check that child process' exitcode contains signum = SIGABRT", T_META_CHECK_LEAKS(false))
	56	{
	57	int ret;
	58	siginfo_t siginfo;
	59	pid_t pid = fork();
	60	int expected_signal = SIGABRT;
	61	if (pid == 0) {
	62	/* child exits with SIGABRT */
	63	T_LOG("In child process. Now signalling SIGABRT");
	64	(void)signal(SIGABRT, SIG_DFL);
	65	raise(SIGABRT);
	66	T_LOG("Child should not print");
	67	} else {
	68	ret = waitid(P_PID, (id_t) pid, &siginfo, WEXITED);
	69	T_ASSERT_POSIX_SUCCESS(0, "waitid");
	70	if (siginfo.si_signo != SIGCHLD) {
	71	T_FAIL("Signal was not SIGCHLD.");
	72	}
	73	T_LOG("si_status = 0x%x , expected = 0x%x \n", siginfo.si_status, expected_signal);
	74	if (siginfo.si_status != expected_signal) {
	75	T_FAIL("Unexpected exitcode");
	76	}
	77	}
	78	}
	79
	80	T_DECL(sigkill_test, "check that child process' exitcode contains signum = SIGKILL", T_META_CHECK_LEAKS(false))
	81	{
	82	int ret;
	83	siginfo_t siginfo;
	84	pid_t pid = fork();
	85	int expected_signal = SIGKILL;
	86	if (pid == 0) {
	87	/* child exits with SIGKILL */
	88	T_LOG("In child process. Now signalling SIGKILL");
	89	raise(SIGKILL);
	90	T_LOG("Child should not print");
	91	} else {
	92	ret = waitid(P_PID, (id_t) pid, &siginfo, WEXITED);
	93	T_ASSERT_POSIX_SUCCESS(0, "waitid");
	94	if (siginfo.si_signo != SIGCHLD) {
	95	T_FAIL("Signal was not SIGCHLD.");
	96	}
	97	T_LOG("si_status = 0x%x , expected = 0x%x \n", siginfo.si_status, expected_signal);
	98	if (siginfo.si_status != expected_signal) {
	99	T_FAIL("Unexpected exitcode");
	100	}
	101	}
	102	}