1 /* 2 * Copyright (c) 2002-2003, Intel Corporation. All rights reserved. 3 * Created by: Rusty.Lnch REMOVE-THIS AT intel DOT com 4 * This file is licensed under the GPL license. For the full content 5 * of this license, see the COPYING file at the top level of this 6 * source tree. 7 8 Test case for assertion #1 of the sigaction system call that shows 9 sigaction (when used with a non-null act pointer) changes the action 10 for a signal. 11 12 Steps: 13 1. Initialize a global variable to indicate the signal 14 handler has not been called. (A signal handler of the 15 prototype "void func(int signo);" will set the global 16 variable to indicate otherwise. 17 2. Use sigaction to setup a signal handler for SIGUSR1 18 3. Raise SIGUSR1. 19 4. Verify the global indicates the signal was called. 20 */ 21 22 #include <signal.h> 23 #include <stdio.h> 24 #include "posixtest.h" 25 26 static volatile int handler_called; 27 handler(int signo LTP_ATTRIBUTE_UNUSED)28void handler(int signo LTP_ATTRIBUTE_UNUSED) 29 { 30 handler_called = 1; 31 } 32 main(void)33int main(void) 34 { 35 struct sigaction act; 36 37 act.sa_handler = handler; 38 act.sa_flags = 0; 39 sigemptyset(&act.sa_mask); 40 if (sigaction(SIGUSR1, &act, 0) == -1) { 41 perror("Unexpected error while attempting to setup test " 42 "pre-conditions"); 43 return PTS_UNRESOLVED; 44 } 45 46 if (raise(SIGUSR1) == -1) { 47 perror("Unexpected error while attempting to setup test " 48 "pre-conditions"); 49 return PTS_UNRESOLVED; 50 } 51 52 if (handler_called) { 53 printf("Test PASSED\n"); 54 return PTS_PASS; 55 } 56 57 printf("Test FAILED\n"); 58 return PTS_FAIL; 59 } 60