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 func parameter is SIG_IGN. 10 11 How this program tests this assertion is by setting up a handler 12 "myhandler" for SIGCHLD, and then raising that signal. If the 13 handler_called variable is anything but 1, then fail, otherwise pass. 14 15 */ 16 17 #include <signal.h> 18 #include <stdio.h> 19 #include <stdlib.h> 20 #include "posixtest.h" 21 22 int handler_called = 0; 23 myhandler(int signo)24void myhandler(int signo) 25 { 26 printf("SIGCHLD called. Inside handler\n"); 27 handler_called = 1; 28 } 29 main(void)30int main(void) 31 { 32 if (signal(SIGCHLD, myhandler) == SIG_ERR) { 33 perror("Unexpected error while using signal()"); 34 return PTS_UNRESOLVED; 35 } 36 37 raise(SIGCHLD); 38 39 if (handler_called != 1) { 40 printf 41 ("Test FAILED: handler was called even though default was expected\n"); 42 return PTS_FAIL; 43 } 44 return PTS_PASS; 45 } 46