1 /* 2 3 * Copyright (c) 2002-2003, Intel Corporation. All rights reserved. 4 * Created by: rusty.lynch REMOVE-THIS AT intel DOT com 5 * This file is licensed under the GPL license. For the full content 6 * of this license, see the COPYING file at the top level of this 7 * source tree. 8 9 Test case for assertion #12 of the sigaction system call that verifies 10 signal-catching functions are executed on the current stack if the 11 SA_ONSTACK flag is set in the sigaction.sa_flags parameter to the 12 sigaction function call, but a new stack has not be set by sigaltstack(). 13 14 NOTE: This test case does not attempt to verify the proper operation 15 of sigaltstack. 16 */ 17 #define _XOPEN_SOURCE 600 18 19 #include <signal.h> 20 #include <stdio.h> 21 #include <stdlib.h> 22 #include "posixtest.h" 23 24 stack_t current; 25 26 void handler(int signo) 27 { 28 stack_t oss; 29 30 printf("Caught SIGBUS\n"); 31 32 if (sigaltstack(NULL, &oss) == -1) { 33 perror("Unexpected error while attempting to setup test " 34 "pre-conditions"); 35 exit(-1); 36 } 37 38 if (oss.ss_sp != current.ss_sp || oss.ss_size != current.ss_size) { 39 printf("Test FAILED\n"); 40 exit(-1); 41 } 42 } 43 44 int main(void) 45 { 46 struct sigaction act; 47 48 act.sa_handler = handler; 49 act.sa_flags = SA_ONSTACK; 50 sigemptyset(&act.sa_mask); 51 if (sigaction(SIGBUS, &act, 0) == -1) { 52 perror("Unexpected error while attempting to setup test " 53 "pre-conditions"); 54 return PTS_UNRESOLVED; 55 } 56 57 if (sigaltstack(NULL, ¤t) == -1) { 58 perror("Unexpected error while attempting to setup test " 59 "pre-conditions"); 60 return PTS_UNRESOLVED; 61 } 62 63 if (raise(SIGBUS) == -1) { 64 perror("Unexpected error while attempting to setup test " 65 "pre-conditions"); 66 return PTS_UNRESOLVED; 67 } 68 69 printf("Test PASSED\n"); 70 return PTS_PASS; 71 } 72
