/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include "log.h" #include "macro.h" #include "signal-util.h" #include "stdio-util.h" #include "string-util.h" #include "process-util.h" #define info(sig) log_info(#sig " = " STRINGIFY(sig) " = %d", sig) static void test_rt_signals(void) { info(SIGRTMIN); info(SIGRTMAX); /* We use signals SIGRTMIN+0 to SIGRTMIN+24 unconditionally */ assert(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); } static void test_signal_from_string(void) { 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); } static void test_block_signals(void) { sigset_t ss; assert_se(sigprocmask(0, NULL, &ss) >= 0); assert_se(sigismember(&ss, SIGUSR1) == 0); assert_se(sigismember(&ss, SIGALRM) == 0); assert_se(sigismember(&ss, SIGVTALRM) == 0); { BLOCK_SIGNALS(SIGUSR1, SIGVTALRM); assert_se(sigprocmask(0, NULL, &ss) >= 0); assert_se(sigismember(&ss, SIGUSR1) == 1); assert_se(sigismember(&ss, SIGALRM) == 0); assert_se(sigismember(&ss, SIGVTALRM) == 1); } assert_se(sigprocmask(0, NULL, &ss) >= 0); assert_se(sigismember(&ss, SIGUSR1) == 0); assert_se(sigismember(&ss, SIGALRM) == 0); assert_se(sigismember(&ss, SIGVTALRM) == 0); } static void test_ignore_signals(void) { 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); } int main(int argc, char *argv[]) { test_rt_signals(); test_signal_from_string(); test_block_signals(); test_ignore_signals(); return 0; }