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      1 /*
      2  * Copyright (c) 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. Add only SIGABRT to the signal mask.
     10  2. Make a call such as this: pthread_sigmask(SIG_UNBLOCK, NULL, &oactl). At
     11  this point, we have obtained the signal mask in oactl.
     12  3. Now call is_changed to make sure that SIGABRT is still in oactl, and
     13  that no other signal in the set is in oactl.
     14 
     15 */
     16 
     17 #include <pthread.h>
     18 #include <signal.h>
     19 #include <stdio.h>
     20 #include "posixtest.h"
     21 
     22 #define NUMSIGNALS (sizeof(siglist) / sizeof(siglist[0]))
     23 
     24 int is_changed(sigset_t set, int sig)
     25 {
     26 
     27 	int i;
     28 	int siglist[] = { SIGABRT, SIGALRM, SIGBUS, SIGCHLD,
     29 		SIGCONT, SIGFPE, SIGHUP, SIGILL, SIGINT,
     30 		SIGPIPE, SIGQUIT, SIGSEGV,
     31 		SIGTERM, SIGTSTP, SIGTTIN, SIGTTOU,
     32 		SIGUSR1, SIGUSR2,
     33 #ifdef SIGPOLL
     34 		SIGPOLL,
     35 #endif
     36 #ifdef SIGPROF
     37 		SIGPROF,
     38 #endif
     39 		SIGSYS,
     40 		SIGTRAP, SIGURG, SIGVTALRM, SIGXCPU, SIGXFSZ
     41 	};
     42 
     43 	if (sigismember(&set, sig) != 1) {
     44 		return 1;
     45 	}
     46 	for (i = 0; i < NUMSIGNALS; i++) {
     47 		if ((siglist[i] != sig)) {
     48 			if (sigismember(&set, siglist[i]) != 0) {
     49 				return 1;
     50 			}
     51 		}
     52 	}
     53 	return 0;
     54 }
     55 
     56 void *a_thread_func()
     57 {
     58 
     59 	sigset_t actl, oactl;
     60 
     61 	sigemptyset(&actl);
     62 	sigemptyset(&oactl);
     63 
     64 	sigaddset(&actl, SIGABRT);
     65 
     66 	pthread_sigmask(SIG_SETMASK, &actl, NULL);
     67 	pthread_sigmask(SIG_UNBLOCK, NULL, &oactl);
     68 
     69 	if (is_changed(oactl, SIGABRT)) {
     70 		pthread_exit((void *)-1);
     71 	}
     72 	printf("PASS: signal mask was not changed.\n");
     73 	pthread_exit(NULL);
     74 
     75 	/* To please some compilers */
     76 	return NULL;
     77 }
     78 
     79 int main(void)
     80 {
     81 
     82 	int *thread_return_value;
     83 
     84 	pthread_t new_thread;
     85 
     86 	if (pthread_create(&new_thread, NULL, a_thread_func, NULL) != 0) {
     87 		perror("Error creating new thread\n");
     88 		return PTS_UNRESOLVED;
     89 	}
     90 
     91 	if (pthread_join(new_thread, (void *)&thread_return_value) != 0) {
     92 		perror("Error in pthread_join()\n");
     93 		return PTS_UNRESOLVED;
     94 	}
     95 
     96 	if ((long)thread_return_value != 0) {
     97 		if ((long)thread_return_value == 1) {
     98 			printf("Test UNRESOLVED\n");
     99 			return PTS_UNRESOLVED;
    100 		} else if ((long)thread_return_value == -1) {
    101 			printf("Test FAILED\n");
    102 			return PTS_FAIL;
    103 		} else {
    104 			printf("Test UNRESOLVED\n");
    105 			return PTS_UNRESOLVED;
    106 		}
    107 	}
    108 	return PTS_PASS;
    109 }
    110