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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <unistd.h>
#include "log.h"
#include "macro.h"
#include "signal-util.h"
#include "stdio-util.h"
#include "string-util.h"
#include "tests.h"
#include "process-util.h"
#define info(sig) log_info(#sig " = " STRINGIFY(sig) " = %d", sig)
TEST(rt_signals) {
info(SIGRTMIN);
info(SIGRTMAX);
/* We use signals SIGRTMIN+0 to SIGRTMIN+24 unconditionally */
assert_se(SIGRTMAX - SIGRTMIN >= 24);
}
static void test_signal_to_string_one(int val) {
const char *p;
assert_se(p = signal_to_string(val));
assert_se(signal_from_string(p) == val);
p = strjoina("SIG", p);
assert_se(signal_from_string(p) == val);
}
static void test_signal_from_string_one(const char *s, int val) {
const char *p;
assert_se(signal_from_string(s) == val);
p = strjoina("SIG", s);
assert_se(signal_from_string(p) == val);
}
static void test_signal_from_string_number(const char *s, int val) {
const char *p;
assert_se(signal_from_string(s) == val);
p = strjoina("SIG", s);
assert_se(signal_from_string(p) == -EINVAL);
}
TEST(signal_from_string) {
char buf[STRLEN("RTMIN+") + DECIMAL_STR_MAX(int) + 1];
test_signal_to_string_one(SIGHUP);
test_signal_to_string_one(SIGTERM);
test_signal_to_string_one(SIGRTMIN);
test_signal_to_string_one(SIGRTMIN+3);
test_signal_to_string_one(SIGRTMAX-4);
test_signal_from_string_one("RTMIN", SIGRTMIN);
test_signal_from_string_one("RTMAX", SIGRTMAX);
xsprintf(buf, "RTMIN+%d", SIGRTMAX-SIGRTMIN);
test_signal_from_string_one(buf, SIGRTMAX);
xsprintf(buf, "RTMIN+%d", INT_MAX);
test_signal_from_string_one(buf, -ERANGE);
xsprintf(buf, "RTMAX-%d", SIGRTMAX-SIGRTMIN);
test_signal_from_string_one(buf, SIGRTMIN);
xsprintf(buf, "RTMAX-%d", INT_MAX);
test_signal_from_string_one(buf, -ERANGE);
test_signal_from_string_one("", -EINVAL);
test_signal_from_string_one("hup", -EINVAL);
test_signal_from_string_one("HOGEHOGE", -EINVAL);
test_signal_from_string_one("RTMIN-5", -EINVAL);
test_signal_from_string_one("RTMIN- 5", -EINVAL);
test_signal_from_string_one("RTMIN -5", -EINVAL);
test_signal_from_string_one("RTMIN+ 5", -EINVAL);
test_signal_from_string_one("RTMIN +5", -EINVAL);
test_signal_from_string_one("RTMIN+100", -ERANGE);
test_signal_from_string_one("RTMIN+-3", -EINVAL);
test_signal_from_string_one("RTMIN++3", -EINVAL);
test_signal_from_string_one("RTMIN+HUP", -EINVAL);
test_signal_from_string_one("RTMIN3", -EINVAL);
test_signal_from_string_one("RTMAX+5", -EINVAL);
test_signal_from_string_one("RTMAX+ 5", -EINVAL);
test_signal_from_string_one("RTMAX +5", -EINVAL);
test_signal_from_string_one("RTMAX- 5", -EINVAL);
test_signal_from_string_one("RTMAX -5", -EINVAL);
test_signal_from_string_one("RTMAX-100", -ERANGE);
test_signal_from_string_one("RTMAX-+3", -EINVAL);
test_signal_from_string_one("RTMAX--3", -EINVAL);
test_signal_from_string_one("RTMAX-HUP", -EINVAL);
test_signal_from_string_number("3", 3);
test_signal_from_string_number("+5", 5);
test_signal_from_string_number(" +5", 5);
test_signal_from_string_number("10000", -ERANGE);
test_signal_from_string_number("-2", -ERANGE);
}
TEST(block_signals) {
assert_se(signal_is_blocked(SIGUSR1) == 0);
assert_se(signal_is_blocked(SIGALRM) == 0);
assert_se(signal_is_blocked(SIGVTALRM) == 0);
{
BLOCK_SIGNALS(SIGUSR1, SIGVTALRM);
assert_se(signal_is_blocked(SIGUSR1) > 0);
assert_se(signal_is_blocked(SIGALRM) == 0);
assert_se(signal_is_blocked(SIGVTALRM) > 0);
}
assert_se(signal_is_blocked(SIGUSR1) == 0);
assert_se(signal_is_blocked(SIGALRM) == 0);
assert_se(signal_is_blocked(SIGVTALRM) == 0);
}
TEST(ignore_signals) {
assert_se(ignore_signals(SIGINT) >= 0);
assert_se(kill(getpid_cached(), SIGINT) >= 0);
assert_se(ignore_signals(SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE) >= 0);
assert_se(kill(getpid_cached(), SIGUSR1) >= 0);
assert_se(kill(getpid_cached(), SIGUSR2) >= 0);
assert_se(kill(getpid_cached(), SIGTERM) >= 0);
assert_se(kill(getpid_cached(), SIGPIPE) >= 0);
assert_se(default_signals(SIGINT, SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE) >= 0);
}
TEST(pop_pending_signal) {
assert_se(signal_is_blocked(SIGUSR1) == 0);
assert_se(signal_is_blocked(SIGUSR2) == 0);
assert_se(pop_pending_signal(SIGUSR1) == 0);
assert_se(pop_pending_signal(SIGUSR2) == 0);
{
BLOCK_SIGNALS(SIGUSR1, SIGUSR2);
assert_se(signal_is_blocked(SIGUSR1) > 0);
assert_se(signal_is_blocked(SIGUSR2) > 0);
assert_se(pop_pending_signal(SIGUSR1) == 0);
assert_se(pop_pending_signal(SIGUSR2) == 0);
assert_se(raise(SIGUSR1) >= 0);
assert_se(pop_pending_signal(SIGUSR2) == 0);
assert_se(pop_pending_signal(SIGUSR1) == SIGUSR1);
assert_se(pop_pending_signal(SIGUSR1) == 0);
assert_se(raise(SIGUSR1) >= 0);
assert_se(raise(SIGUSR2) >= 0);
assert_cc(SIGUSR1 < SIGUSR2);
assert_se(pop_pending_signal(SIGUSR1, SIGUSR2) == SIGUSR1);
assert_se(pop_pending_signal(SIGUSR1, SIGUSR2) == SIGUSR2);
assert_se(pop_pending_signal(SIGUSR1, SIGUSR2) == 0);
}
assert_se(signal_is_blocked(SIGUSR1) == 0);
assert_se(signal_is_blocked(SIGUSR2) == 0);
assert_se(pop_pending_signal(SIGUSR1) == 0);
assert_se(pop_pending_signal(SIGUSR2) == 0);
}
DEFINE_TEST_MAIN(LOG_INFO);
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