1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2018 Linaro Limited. All rights reserved.
4 * Author: Rafael David Tinoco <rafael.tinoco@linaro.org>
5 */
6
7 /*
8 * An empty buffer of size zero can be passed into fgetxattr(2) to return
9 * the current size of the named extended attribute.
10 */
11
12 #include "config.h"
13 #include <sys/types.h>
14 #include <sys/stat.h>
15 #include <sys/wait.h>
16 #include <errno.h>
17 #include <fcntl.h>
18 #include <unistd.h>
19 #include <signal.h>
20 #include <stdio.h>
21 #include <stdlib.h>
22 #include <string.h>
23 #ifdef HAVE_SYS_XATTR_H
24 # include <sys/xattr.h>
25 #endif
26 #include "tst_test.h"
27
28 #ifdef HAVE_SYS_XATTR_H
29 #define XATTR_TEST_KEY "user.testkey"
30 #define XATTR_TEST_VALUE "this is a test value"
31 #define XATTR_TEST_VALUE_SIZE 20
32 #define FILENAME "fgetxattr03testfile"
33
34 static int fd = -1;
35
verify_fgetxattr(void)36 static void verify_fgetxattr(void)
37 {
38 TEST(fgetxattr(fd, XATTR_TEST_KEY, NULL, 0));
39
40 if (TST_RET == XATTR_TEST_VALUE_SIZE) {
41 tst_res(TPASS, "fgetxattr(2) returned correct value");
42 return;
43 }
44
45 tst_res(TFAIL | TTERRNO, "fgetxattr(2) failed with %li", TST_RET);
46 }
47
setup(void)48 static void setup(void)
49 {
50 SAFE_TOUCH(FILENAME, 0644, NULL);
51 fd = SAFE_OPEN(FILENAME, O_RDONLY, NULL);
52
53 SAFE_FSETXATTR(fd, XATTR_TEST_KEY, XATTR_TEST_VALUE,
54 XATTR_TEST_VALUE_SIZE, XATTR_CREATE);
55 }
56
cleanup(void)57 static void cleanup(void)
58 {
59 if (fd > 0)
60 SAFE_CLOSE(fd);
61 }
62
63 static struct tst_test test = {
64 .setup = setup,
65 .test_all = verify_fgetxattr,
66 .cleanup = cleanup,
67 .needs_tmpdir = 1,
68 };
69
70 #else /* HAVE_SYS_XATTR_H */
71 TST_TEST_TCONF("<sys/xattr.h> does not exist");
72 #endif
73
74