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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include "zdtmtst.h"
#define OFFSET 1000
#define OFFSET2 500
const char *test_doc = "Check shared struct file-s";
const char *test_author = "Andrey Vagin <avagin@openvz.org>";
char *filename;
TEST_OPTION(filename, string, "file name", 1);
int main(int argc, char **argv)
{
pid_t pid;
int fd, fd2, fd3, ret, status;
off_t off;
test_init(argc, argv);
fd = open(filename, O_RDWR | O_CREAT, 0644);
if (fd == -1)
return 1;
fd2 = dup(fd);
if (fd < 0)
return 1;
fd3 = open(filename, O_RDWR | O_CREAT, 0644);
if (fd3 == -1)
return 1;
pid = test_fork();
if (pid == -1)
return 1;
else if (pid) {
fcntl(fd2, F_SETFD, 1);
test_daemon();
test_waitsig();
off = lseek(fd, OFFSET, SEEK_SET);
if (off == (off_t)-1)
return 1;
off = lseek(fd3, OFFSET2, SEEK_SET);
if (off == (off_t)-1)
return 1;
ret = kill(pid, SIGTERM);
if (ret == -1) {
pr_perror("kill() failed");
}
ret = wait(&status);
if (ret == -1) {
pr_perror("wait() failed");
return 1;
}
if (!WIFEXITED(status) || WEXITSTATUS(status)) {
fail("Child exited with non-zero status");
return 1;
}
off = lseek(fd2, 0, SEEK_CUR);
if (off != OFFSET) {
fail("offset1 fail");
return 1;
}
off = lseek(fd3, 0, SEEK_CUR);
if (off != OFFSET2) {
fail("offset2 fail");
return 1;
}
ret = fcntl(fd, F_GETFD, 0);
if (ret != 0) {
fail("fd cloexec broken");
return 1;
}
ret = fcntl(fd2, F_GETFD, 0);
if (ret != 1) {
fail("fd2 cloexec broken");
return 1;
}
} else {
test_waitsig();
off = lseek(fd, 0, SEEK_CUR);
if (off != OFFSET) {
fail("offset3 fail");
return 1;
}
off = lseek(fd2, 0, SEEK_CUR);
if (off != OFFSET) {
fail("offset4 fail");
return 1;
}
off = lseek(fd3, 0, SEEK_CUR);
if (off != OFFSET2) {
fail("offset5 fail");
return 1;
}
return 0;
}
pass();
return 0;
}
|
