1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/* Test signals. */
#define _GNU_SOURCE
#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <error.h>
#include <assert.h>
#include <sys/resource.h>
#include <sys/wait.h>
void *
thr (void *arg)
{
* (int *)0 = 0;
return 0;
}
int foobar;
int
main (int argc, char *argv[])
{
error_t err;
pid_t child;
struct rlimit limit;
limit.rlim_cur = 0;
limit.rlim_max = 0;
err = setrlimit (RLIMIT_CORE, &limit);
if (err)
error (1, err, "setrlimit");
child = fork ();
switch (child)
{
case -1:
error (1, errno, "fork");
break;
case 0:
{
pthread_t tid;
void *ret;
err = pthread_create (&tid, 0, thr, 0);
if (err)
error (1, err, "pthread_create");
err = pthread_join (tid, &ret);
assert_perror (err);
/* Should have never returned. Our parent expects us to fail
thus we succeed and indicate the error. */
return 0;
}
default:
{
pid_t pid;
int status;
pid = waitpid (child, &status, 0);
printf ("pid = %d; child = %d; status = %d\n", pid, child, status);
assert (pid == child);
assert (status != 0);
}
}
return 0;
}
|