| /* |
| * Copyright (c) 2003, Intel Corporation. All rights reserved. |
| * Created by: salwan.searty REMOVE-THIS AT intel DOT com |
| * This file is licensed under the GPL license. For the full content |
| * of this license, see the COPYING file at the top level of this |
| * source tree. |
| |
| This program tests the assertion that the default handling of the |
| signal shall occur if the value of the func parameter is SIG_DFL. |
| |
| How this program tests this assertion by setting up a handler |
| "myhandler" for SIGCHLD. Then another call to signal() is made about |
| SIGCHLD, this time with SIG_DFL as the value of the func parameter. |
| The default action for SIGCHLD is to be ignored, so unless myhandler |
| gets called when SIGCHLD is raised, the test passess, otherwise |
| returns failure. |
| |
| */ |
| |
| #include <signal.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include "posixtest.h" |
| |
| int handler_called = 0; |
| |
| void myhandler(int signo) |
| { |
| printf("SIGCHLD called. Inside handler\n"); |
| handler_called = 1; |
| } |
| |
| int main() |
| { |
| if (signal(SIGCHLD, myhandler) == SIG_ERR) { |
| perror("Unexpected error while using signal()"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (signal(SIGCHLD,SIG_DFL) != myhandler) { |
| perror("Unexpected error while using signal()"); |
| return PTS_UNRESOLVED; |
| } |
| |
| raise(SIGCHLD); |
| |
| if (handler_called == 1) { |
| printf("Test FAILED: handler was called even though default was expected\n"); |
| return PTS_FAIL; |
| } |
| return PTS_PASS; |
| } |