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 * Test that the sigqueue() function shall send signal signo and value
9 to the child process specified by pid.
10 * 1) Fork a child process.
11 * 2) In the parent process, call sigqueue with signal SIGTOTEST and
12 * value VALTOTEST for the pid of the child
13 * In the child,
14 * 3) Wait for signal SIGTOTEST.
15 * 4) Return 1 if SIGTOTEST and SIGTOVAL are the values of signo and
16 info->si_value.sival_intel respectively. Have the child return 0 otherwise.
17 * 5) In the parent, return success if 1 was returned from child.
18 *
19 */
20
21 #define _XOPEN_REALTIME 1
22 #define SIGTOTEST SIGRTMIN
23 #define VALTOTEST 100 /* Application-defined value sent by sigqueue */
24
25 #include <signal.h>
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <unistd.h>
29 #include <sys/wait.h>
30 #include "posixtest.h"
31
myhandler(int signo,siginfo_t * info,void * context LTP_ATTRIBUTE_UNUSED)32 void myhandler(int signo, siginfo_t *info, void *context LTP_ATTRIBUTE_UNUSED)
33 {
34 if (signo == SIGTOTEST && info->si_value.sival_int == VALTOTEST) {
35 printf
36 ("sigqueue()'s signo and value parameters were passed to the child process.\n");
37 exit(1);
38 }
39 }
40
main(void)41 int main(void)
42 {
43 int pid;
44
45 if ((pid = fork()) == 0) {
46 /* child here */
47 struct sigaction act;
48 act.sa_flags = SA_SIGINFO;
49 act.sa_sigaction = myhandler;
50 sigemptyset(&act.sa_mask);
51 sigaction(SIGTOTEST, &act, 0);
52
53 while (1) {
54 sleep(1);
55 }
56 printf("shouldn't be here\n");
57 return 0;
58 } else {
59 /* parent here */
60 int i;
61 union sigval value;
62 value.sival_int = VALTOTEST;
63
64 sleep(1);
65 if (sigqueue(pid, SIGTOTEST, value) != 0) {
66 printf("Could not raise signal being tested\n");
67 return PTS_UNRESOLVED;
68 }
69
70 if (wait(&i) == -1) {
71 perror("Error waiting for child to exit\n");
72 return PTS_UNRESOLVED;
73 }
74
75 if (WEXITSTATUS(i)) {
76 printf("Child exited normally\n");
77 printf("Test PASSED\n");
78 return PTS_PASS;
79 } else {
80 printf("Child did not exit normally.\n");
81 printf("Test FAILED\n");
82 return PTS_FAIL;
83 }
84 }
85
86 printf("Should have exited from parent\n");
87 printf("Test FAILED\n");
88 return PTS_FAIL;
89 }
90