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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2016 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <signal.h>
#include <unistd.h>
#include "log.h"
#include "macro.h"
#include "signal-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_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, -1) >= 0);
assert_se(kill(getpid_cached(), SIGINT) >= 0);
assert_se(ignore_signals(SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 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, -1) >= 0);
}
int main(int argc, char *argv[]) {
test_rt_signals();
test_block_signals();
test_ignore_signals();
return 0;
}
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