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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) International Business Machines Corp., 2001
*
* 07/2001 Ported by Wayne Boyer
* 04/2003 Modified by Manoj Iyer - manjo@mail.utexas.edu
*/
/*\
* [Description]
*
* Basic chroot() functionality test.
*
* - Create a file in the temporary directory
* - Change the root to this temporary directory
* - Check whether this file can be accessed in the new root directory
*/
#include <stdlib.h>
#include "tst_test.h"
#define TMP_FILENAME "chroot02_testfile"
static char *path;
static void verify_chroot(void)
{
struct stat buf;
if (!SAFE_FORK()) {
TST_EXP_PASS(chroot(path), "chroot(%s)", path);
if (!TST_PASS)
return;
TST_EXP_PASS(stat("/" TMP_FILENAME, &buf), "stat(/%s)", TMP_FILENAME);
}
}
static void setup(void)
{
path = tst_get_tmpdir();
SAFE_TOUCH(TMP_FILENAME, 0666, NULL);
}
static void cleanup(void)
{
free(path);
}
static struct tst_test test = {
.cleanup = cleanup,
.setup = setup,
.test_all = verify_chroot,
.needs_root = 1,
.forks_child = 1,
.needs_tmpdir = 1,
};
|