/* * Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "tests.h" #include <signal.h> #include <stdio.h> #include <stdlib.h> #ifdef ASM_SIGRTMIN # define RT_0 ASM_SIGRTMIN #else /* Linux kernel >= 3.18 defines SIGRTMIN to 32 on all architectures. */ # define RT_0 32 #endif static void handler(int no, siginfo_t *si, void *uc) { } int main(void) { static sigset_t set; sigemptyset(&set); sigaddset(&set, SIGINT); sigaddset(&set, SIGUSR2); sigaddset(&set, SIGCHLD); sigaddset(&set, RT_0 + 3); sigaddset(&set, RT_0 + 4); sigaddset(&set, RT_0 + 5); sigaddset(&set, RT_0 + 26); sigaddset(&set, RT_0 + 27); if (sigprocmask(SIG_SETMASK, &set, NULL)) perror_msg_and_fail("sigprocmask"); sigemptyset(&set); static const struct sigaction sa = { .sa_sigaction = handler, .sa_flags = SA_SIGINFO }; if (sigaction(SIGUSR1, &sa, NULL)) perror_msg_and_fail("sigaction"); if (raise(SIGUSR1)) perror_msg_and_fail("raise"); static const char *const sigs = (SIGUSR2 < SIGCHLD) ? "INT USR2 CHLD" : "INT CHLD USR2"; static const char *const rt_sigs = "RT_3 RT_4 RT_5 RT_26 RT_27"; printf("rt_sigreturn({mask=[%s %s]}) = 0\n", sigs, rt_sigs); puts("+++ exited with 0 +++"); return 0; }