1d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes/* 2d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Check how strace -e signal=set works. 3d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 4d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> 5d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * All rights reserved. 6d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 7d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Redistribution and use in source and binary forms, with or without 8d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * modification, are permitted provided that the following conditions 9d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * are met: 10d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 1. Redistributions of source code must retain the above copyright 11d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer. 12d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 2. Redistributions in binary form must reproduce the above copyright 13d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer in the 14d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * documentation and/or other materials provided with the distribution. 15d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 3. The name of the author may not be used to endorse or promote products 16d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * derived from this software without specific prior written permission. 17d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 18d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes */ 29d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 30d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include "tests.h" 31d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <assert.h> 32d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <signal.h> 33d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <stdio.h> 34d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <stdlib.h> 35d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <unistd.h> 36d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 37d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic pid_t pid; 38d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic uid_t uid; 39d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 40d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic void 41d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hugheshandler(int sig) 42d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 43d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 44d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 45d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic void 46d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughestest_sig(int signo, const char *name) 47d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 48d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const struct sigaction act = { .sa_handler = handler }; 49d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 50d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (sigaction(signo, &act, NULL)) 51d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("sigaction: %d", signo); 52d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 53d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigset_t mask; 54d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigemptyset(&mask); 55d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigaddset(&mask, signo); 56d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (sigprocmask(SIG_UNBLOCK, &mask, NULL)) 57d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("sigprocmask: %d", signo); 58d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 59d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (kill(pid, signo)) 60d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("kill(%d, %d)", pid, signo); 61d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 62d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (name && *name) 63d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes printf("--- %s {si_signo=%s, si_code=SI_USER" 64d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes ", si_pid=%d, si_uid=%d} ---\n", 65d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes name, name, pid, uid); 66d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 67d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 68d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesint 69d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesmain(int ac, const char **av) 70d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 71d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(ac & 1); 72d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 73d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes pid = getpid(); 74d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes uid = geteuid(); 75d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 76d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes int i; 77d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes for (i = 1; i < ac; i += 2) 78d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes test_sig(atoi(av[i]), av[i + 1]); 79d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 80d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes puts("+++ exited with 0 +++"); 81d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return 0; 82d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 83