1 /* 2 * Copyright (c) 2002-2003, 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 * Steps: 9 * 1) Fork a child process. 10 * 2) In the parent process, call killpg with signal SIGTOTEST for the 11 * process group id of the child. Have the parent ignore such a signal 12 * incase the process group id of the parent is the same as process 13 * group id of the child. 14 * In the child, 15 * 3) Wait for signal SIGTOTEST. 16 * 4) Return 1 if SIGTOTEST is found. Return 0 otherwise. 17 * 5) In the parent, return success if 1 was returned from child. 18 * 19 */ 20 21 #define _XOPEN_SOURCE 600 22 #define SIGTOTEST SIGUSR1 23 24 #include <signal.h> 25 #include <stdio.h> 26 #include <stdlib.h> 27 #include <unistd.h> 28 #include <sys/wait.h> 29 #include "posixtest.h" 30 31 void myhandler(int signo) 32 { 33 (void) signo; 34 _exit(1); 35 } 36 37 int main(void) 38 { 39 int child_pid, child_pgid; 40 41 if ((child_pid = fork()) == 0) { 42 /* child here */ 43 struct sigaction act; 44 act.sa_handler = myhandler; 45 act.sa_flags = 0; 46 sigemptyset(&act.sa_mask); 47 sigaction(SIGTOTEST, &act, 0); 48 49 /* change child's process group id */ 50 51 /* 52 * XXX: POSIX 1003.1-2001 added setpgrp(2) to BASE, but 53 * unfortunately BSD has had their own implementations for 54 * ages for compatibility reasons. 55 */ 56 #if __FreeBSD__ || __NetBSD__ || __OpenBSD__ 57 setpgrp(0, 0); 58 #else 59 setpgrp(); 60 #endif 61 62 sigpause(SIGABRT); 63 64 return 0; 65 } else { 66 /* parent here */ 67 int i; 68 sigignore(SIGTOTEST); 69 70 sleep(1); 71 if ((child_pgid = getpgid(child_pid)) == -1) { 72 printf("Could not get pgid of child\n"); 73 return PTS_UNRESOLVED; 74 } 75 76 if (killpg(child_pgid, SIGTOTEST) != 0) { 77 printf("Could not raise signal being tested\n"); 78 return PTS_UNRESOLVED; 79 } 80 81 if (wait(&i) == -1) { 82 perror("Error waiting for child to exit\n"); 83 return PTS_UNRESOLVED; 84 } 85 86 if (WEXITSTATUS(i)) { 87 printf("Child exited normally\n"); 88 printf("Test PASSED\n"); 89 return PTS_PASS; 90 } else { 91 printf("Child did not exit normally.\n"); 92 printf("Test FAILED\n"); 93 return PTS_FAIL; 94 } 95 } 96 97 printf("Should have exited from parent\n"); 98 printf("Test FAILED\n"); 99 return PTS_FAIL; 100 } 101
