1 /* 2 * Copyright (c) 2002-2003, 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 kill() function shall send signal sig to the process 9 * specified by pid when the process specified by pid is not the calling 10 * process. 11 * 1) Fork a child process. 12 * 2) In the parent process, call kill with signal SIGTOTEST for the 13 * pid 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 * This test is only performed on one signal. All other signals are 20 * considered to be in the same equivalence class. 21 * 22 * This test makes the assumption that 1 second of sleeping on the part 23 * of the parent is enough to give the child time to start waiting for 24 * the parent's signal. If that is not the case, this test will fail. 25 */ 26 27 #include <signal.h> 28 #include <stdio.h> 29 #include <stdlib.h> 30 #include <unistd.h> 31 #include <sys/wait.h> 32 #include "posixtest.h" 33 34 #define SIGTOTEST SIGUSR1 35 36 static void myhandler(int signo) 37 { 38 (void) signo; 39 _exit(1); 40 } 41 42 int main(void) 43 { 44 int pid; 45 46 int sig; 47 sigset_t set; 48 49 if (sigemptyset(&set) == -1) { 50 perror("Error calling sigemptyset\n"); 51 return PTS_UNRESOLVED; 52 } 53 54 if (sigaddset(&set, SIGTOTEST) == -1) { 55 perror("Error calling sigaddset\n"); 56 return PTS_UNRESOLVED; 57 } 58 59 pid = fork(); 60 if (pid == 0) { 61 /* child here */ 62 struct sigaction act; 63 act.sa_handler = myhandler; 64 act.sa_flags = 0; 65 sigemptyset(&act.sa_mask); 66 sigaction(SIGTOTEST, &act, 0); 67 68 if (0 != sigwait(&set, &sig)) { 69 printf("Sigwait did not return 0." 70 "Possible problem with sigwait function\n"); 71 /* FAIL */ 72 return 0; 73 } 74 75 if (sig != SIGTOTEST) 76 /* FAIL */ 77 return 0; 78 79 return 1; 80 } else if (pid > 0) { 81 /* parent here */ 82 int i; 83 84 sleep(1); 85 if (kill(pid, SIGTOTEST) != 0) { 86 printf("Could not raise signal being tested\n"); 87 return PTS_UNRESOLVED; 88 } 89 90 if (wait(&i) == -1) { 91 perror("Error waiting for child to exit\n"); 92 return PTS_UNRESOLVED; 93 } 94 95 if (WEXITSTATUS(i)) { 96 printf("Child exited normally\n"); 97 printf("Test PASSED\n"); 98 return PTS_PASS; 99 } else { 100 printf("Child did not exit normally.\n"); 101 printf("Test FAILED\n"); 102 return PTS_FAIL; 103 } 104 105 } else { 106 printf("Error fork() a child\n"); 107 return PTS_UNRESOLVED; 108 } 109 110 printf("Should have exited from parent\n"); 111 printf("Test FAILED\n"); 112 return PTS_FAIL; 113 } 114
