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: llistxattr02
19 *
20 * Description:
21 * 1) llistxattr(2) fails if the size of the list buffer is too small
22 * to hold the result.
23 * 2) llistxattr(2) fails if path is an empty string.
24 * 3) llistxattr(2) fails when attempted to read from a invalid address.
25 * 4) llistxattr(2) fails if path is longer than allowed.
26 *
27 * Expected Result:
28 * 1) llistxattr(2) should return -1 and set errno to ERANGE.
29 * 2) llistxattr(2) should return -1 and set errno to ENOENT.
30 * 3) llistxattr(2) should return -1 and set errno to EFAULT.
31 * 4) llistxattr(2) should return -1 and set errno to ENAMETOOLONG.
32 */
33
34 #include "config.h"
35 #include <errno.h>
36 #include <sys/types.h>
37
38 #ifdef HAVE_SYS_XATTR_H
39 # include <sys/xattr.h>
40 #endif
41
42 #include "tst_test.h"
43
44 #ifdef HAVE_SYS_XATTR_H
45
46 #define SECURITY_KEY "security.ltptest"
47 #define VALUE "test"
48 #define VALUE_SIZE (sizeof(VALUE) - 1)
49 #define TESTFILE "testfile"
50 #define SYMLINK "symlink"
51
52 static char longpathname[PATH_MAX + 2];
53
54 static struct test_case {
55 const char *path;
56 size_t size;
57 int exp_err;
58 } tc[] = {
59 {SYMLINK, 1, ERANGE},
60 {"", 20, ENOENT},
61 {(char *)-1, 20, EFAULT},
62 {longpathname, 20, ENAMETOOLONG}
63 };
64
verify_llistxattr(unsigned int n)65 static void verify_llistxattr(unsigned int n)
66 {
67 struct test_case *t = tc + n;
68 char buf[t->size];
69
70 TEST(llistxattr(t->path, buf, sizeof(buf)));
71 if (TEST_RETURN != -1) {
72 tst_res(TFAIL,
73 "llistxattr() succeeded unexpectedly (returned %ld)",
74 TEST_RETURN);
75 return;
76 }
77
78 if (TEST_ERRNO != t->exp_err) {
79 tst_res(TFAIL | TTERRNO, "llistxattr() failed "
80 "unexpectedlly, expected %s",
81 tst_strerrno(t->exp_err));
82 } else {
83 tst_res(TPASS | TTERRNO,
84 "llistxattr() failed as expected");
85 }
86 }
87
setup(void)88 static void setup(void)
89 {
90 SAFE_TOUCH(TESTFILE, 0644, NULL);
91
92 SAFE_SYMLINK(TESTFILE, SYMLINK);
93
94 SAFE_LSETXATTR(SYMLINK, SECURITY_KEY, VALUE, VALUE_SIZE, XATTR_CREATE);
95
96 memset(longpathname, 'a', sizeof(longpathname) - 1);
97 }
98
99 static struct tst_test test = {
100 .tid = "llistxattr02",
101 .needs_tmpdir = 1,
102 .needs_root = 1,
103 .test = verify_llistxattr,
104 .tcnt = ARRAY_SIZE(tc),
105 .setup = setup,
106 };
107
108 #else /* HAVE_SYS_XATTR_H */
109 TST_TEST_TCONF("<sys/xattr.h> does not exist.");
110 #endif
111