1 /* Test signals.
2 Copyright (C) 2000-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #define _GNU_SOURCE
20
21 #include <pthread.h>
22 #include <unistd.h>
23 #include <stdio.h>
24 #include <errno.h>
25 #include <error.h>
26 #include <assert.h>
27 #include <sys/resource.h>
28 #include <sys/wait.h>
29
30 void *
thr(void * arg)31 thr (void *arg)
32 {
33 *(int *) 0 = 0;
34 return 0;
35 }
36
37 int foobar;
38
39 int
main(int argc,char * argv[])40 main (int argc, char *argv[])
41 {
42 error_t err;
43 pid_t child;
44
45 struct rlimit limit;
46
47 limit.rlim_cur = 0;
48 limit.rlim_max = 0;
49
50 err = setrlimit (RLIMIT_CORE, &limit);
51 if (err)
52 error (1, err, "setrlimit");
53
54 child = fork ();
55 switch (child)
56 {
57 case -1:
58 error (1, errno, "fork");
59 break;
60
61 case 0:
62 {
63 pthread_t tid;
64 void *ret;
65
66 err = pthread_create (&tid, 0, thr, 0);
67 if (err)
68 error (1, err, "pthread_create");
69
70 err = pthread_join (tid, &ret);
71 assert_perror (err);
72
73 /* Should have never returned. Our parent expects us to fail
74 thus we succeed and indicate the error. */
75 return 0;
76 }
77
78 default:
79 {
80 pid_t pid;
81 int status;
82
83 pid = waitpid (child, &status, 0);
84 printf ("pid = %d; child = %d; status = %d\n", pid, child, status);
85 assert (pid == child);
86 assert (status != 0);
87 }
88 }
89
90 return 0;
91 }
92