1 /* 2 * Copyright (c) 2003, Intel Corporation. All rights reserved. 3 * Created by: salwan.searty 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 This program tests the assertion that the signal shall be ignored 9 if the value of the dist parameter is SIG_IGN. 10 11 How this program tests this assertion is by setting up a handler 12 "myhandler" for SIGUSR1. Then another call to signal() is made about 13 SIGUSR1, this time with SIG_IGN as the value of the func parameter. 14 SIGUSR1 should be ignored now, so unless myhandler gets called when 15 SIGUSR1 is raised, the test passes, otherwise returns failure. 16 17 */ 18 19 #define _XOPEN_SOURCE 600 20 21 #include <signal.h> 22 #include <stdio.h> 23 #include <stdlib.h> 24 #include "posixtest.h" 25 26 int handler_called = 0; 27 28 void myhandler(int signo) 29 { 30 printf("SIGUSR1 called. Inside handler\n"); 31 handler_called = 1; 32 } 33 34 int main(void) 35 { 36 struct sigaction act; 37 act.sa_flags = 0; 38 act.sa_handler = myhandler; 39 sigemptyset(&act.sa_mask); 40 41 if (sigaction(SIGUSR1, &act, 0) != 0) { 42 perror("Unexpected error while using sigaction()"); 43 return PTS_UNRESOLVED; 44 } 45 46 if (sigset(SIGUSR1, SIG_IGN) != myhandler) { 47 perror("Unexpected error while using signal()"); 48 return PTS_UNRESOLVED; 49 } 50 51 raise(SIGUSR1); 52 53 if (handler_called == 1) { 54 printf 55 ("Test FAILED: handler was called even though default was expected\n"); 56 return PTS_FAIL; 57 } 58 return PTS_PASS; 59 } 60
