1 /* 2 * Execute a command with blocked, reset, and raised signal. 3 * 4 * Copyright (c) 2017 Dmitry V. Levin <ldv (at) altlinux.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include "tests.h" 31 #include <signal.h> 32 #include <stdlib.h> 33 #include <unistd.h> 34 35 int 36 main(int ac, char **av) 37 { 38 if (ac < 3) 39 error_msg_and_fail("usage: block_reset_raise_run signo path..."); 40 41 sigset_t mask; 42 sigemptyset(&mask); 43 const int signo = atoi(av[1]); 44 if (sigaddset(&mask, signo)) 45 perror_msg_and_fail("sigaddset: %s", av[1]); 46 if (sigprocmask(SIG_BLOCK, &mask, NULL)) 47 perror_msg_and_fail("sigprocmask"); 48 if (signal(signo, SIG_DFL) == SIG_ERR) 49 perror_msg_and_fail("signal: %s", av[1]); 50 if (raise(signo)) 51 perror_msg_and_fail("raise: %s", av[1]); 52 53 execvp(av[2], av + 2); 54 perror_msg_and_fail("execvp: %s", av[2]); 55 } 56
