1 /* 2 * Copyright (c) 2002, Intel Corporation. All rights reserved. 3 * Created by: julie.n.fleischer 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 that the raise(<signal>) function shall send the signal 9 * to the executing process when the executing process is a child 10 * process. 11 * 1) Set up a signal handler for a signal in the parent process. 12 * This handler returns failure if called. 13 * 2) Fork a child process. 14 * 2) In the child process: 15 * 3) Set up a signal handler for the same signal as in the parent process. 16 * This handler returns success if called. 17 * 4) Raise the signal. 18 * 5) If signal handler was called, return 1 (so WEXITSTATUS can test 19 * for success). 20 * 6) In parent, if 1 was received, test passed. 21 * This test is only performed on one signal. All other signals are 22 * considered to be in the same equivalence class. 23 */ 24 25 #include <signal.h> 26 #include <stdio.h> 27 #include <stdlib.h> 28 #include <sys/types.h> 29 #include <unistd.h> 30 #include <sys/wait.h> 31 #include "posixtest.h" 32 33 #define SIGTOTEST SIGABRT 34 35 void parenthandler(int signo) 36 { 37 printf("Caught signal from parent!\n"); 38 exit(-1); 39 } 40 41 void childhandler(int signo) 42 { 43 printf("Caught signal from child!\n"); 44 exit(0); 45 } 46 47 int main(void) 48 { 49 struct sigaction parentact; 50 51 parentact.sa_handler = parenthandler; 52 parentact.sa_flags = 0; 53 if (sigemptyset(&parentact.sa_mask) == -1) { 54 perror("Error calling sigemptyset\n"); 55 return PTS_UNRESOLVED; 56 } 57 if (sigaction(SIGTOTEST, &parentact, 0) == -1) { 58 perror("Error calling sigaction\n"); 59 return PTS_UNRESOLVED; 60 } 61 62 if (fork() == 0) { 63 /* child here */ 64 struct sigaction childact; 65 66 childact.sa_handler = childhandler; 67 childact.sa_flags = 0; 68 if (sigemptyset(&childact.sa_mask) == -1) { 69 perror("Error calling sigemptyset\n"); 70 return PTS_UNRESOLVED; 71 } 72 if (sigaction(SIGTOTEST, &childact, 0) == -1) { 73 perror("Error calling sigaction\n"); 74 return PTS_UNRESOLVED; 75 } 76 if (raise(SIGTOTEST) != 0) { 77 printf("Could not raise signal being tested\n"); 78 return PTS_FAIL; 79 } 80 81 printf("Should have exited from signal handler\n"); 82 return PTS_FAIL; 83 } else { 84 /* parent here */ 85 int i; 86 87 if (wait(&i) == -1) { 88 perror("Error waiting for child to exit\n"); 89 return PTS_UNRESOLVED; 90 } 91 if (!WEXITSTATUS(i)) { 92 printf("Child exited normally\n"); 93 printf("Test PASSED\n"); 94 return PTS_PASS; 95 } else { 96 printf("Child did not exit normally.\n"); 97 printf("Test FAILED\n"); 98 return PTS_FAIL; 99 } 100 } 101 102 printf("Should not make it here.\n"); 103 return PTS_UNRESOLVED; 104 } 105
