1 /*
2 * Copyright (c) 2016 Fujitsu Ltd.
3 * Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 *
13 * You should have received a copy of the GNU General Public License
14 * alone with this program.
15 */
16
17 /*
18 * Test Name: llistxattr03
19 *
20 * Description:
21 * llistxattr is identical to listxattr. an empty buffer of size zero
22 * can return the current size of the list of extended attribute names,
23 * which can be used to estimate a suitable buffer.
24 */
25
26 #include "config.h"
27 #include <errno.h>
28 #include <sys/types.h>
29
30 #ifdef HAVE_ATTR_XATTR_H
31 # include <attr/xattr.h>
32 #endif
33
34 #include "tst_test.h"
35
36 #ifdef HAVE_ATTR_XATTR_H
37
38 #define SECURITY_KEY "security.ltptest"
39 #define VALUE "test"
40 #define VALUE_SIZE 4
41
42 static const char *filename[] = {"testfile1", "testfile2"};
43
check_suitable_buf(const char * name,long size)44 static int check_suitable_buf(const char *name, long size)
45 {
46 int n;
47 char buf[size];
48
49 n = llistxattr(name, buf, size);
50 if (n == -1)
51 return 0;
52 else
53 return 1;
54 }
55
verify_llistxattr(unsigned int n)56 static void verify_llistxattr(unsigned int n)
57 {
58 const char *name = filename[n];
59
60 TEST(llistxattr(name, NULL, 0));
61 if (TEST_RETURN == -1) {
62 tst_res(TFAIL | TERRNO, "llistxattr() failed");
63 return;
64 }
65
66 if (check_suitable_buf(name, TEST_RETURN))
67 tst_res(TPASS, "llistxattr() succeed with suitable buffer");
68 else
69 tst_res(TFAIL, "llistxattr() failed with small buffer");
70 }
71
setup(void)72 static void setup(void)
73 {
74 int ret;
75
76 SAFE_TOUCH(filename[0], 0644, NULL);
77
78 SAFE_TOUCH(filename[1], 0644, NULL);
79
80 ret = lsetxattr(filename[1], SECURITY_KEY, VALUE, VALUE_SIZE, XATTR_CREATE);
81 if (ret == -1) {
82 if (errno == ENOTSUP) {
83 tst_brk(TCONF, "no xattr support in fs or "
84 "mounted without user_xattr option");
85 } else {
86 tst_brk(TBROK | TERRNO, "lsetxattr() failed");
87 }
88 }
89 }
90
91 static struct tst_test test = {
92 .tid = "llistxattr02",
93 .needs_tmpdir = 1,
94 .needs_root = 1,
95 .test = verify_llistxattr,
96 .tcnt = ARRAY_SIZE(filename),
97 .setup = setup,
98 };
99
100 #else /* HAVE_ATTR_XATTR_H */
101 TST_TEST_TCONF("<attr/xattr.h> does not exist.");
102 #endif
103