1 /*
2 * Copyright (c) 2016 RT-RK Institute for Computer Based Systems
3 * Author: Dejan Jovicevic <dejan.jovicevic@rt-rk.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program.
17 */
18
19 /*
20 * Test Name: flistxattr03
21 *
22 * Description:
23 * flistxattr is identical to listxattr. an empty buffer of size zero
24 * can return the current size of the list of extended attribute names,
25 * which can be used to estimate a suitable buffer.
26 */
27
28 #include "config.h"
29 #include <errno.h>
30 #include <sys/types.h>
31
32 #ifdef HAVE_SYS_XATTR_H
33 # include <sys/xattr.h>
34 #endif
35
36 #include "tst_test.h"
37
38 #ifdef HAVE_SYS_XATTR_H
39
40 #define SECURITY_KEY "security.ltptest"
41 #define VALUE "test"
42 #define VALUE_SIZE (sizeof(VALUE) - 1)
43
44 static int fd[] = {0, 0};
45
check_suitable_buf(const int file,long size)46 static int check_suitable_buf(const int file, long size)
47 {
48 int n;
49 char buf[size];
50
51 n = flistxattr(file, buf, sizeof(buf));
52
53 return n != -1;
54 }
55
verify_flistxattr(unsigned int n)56 static void verify_flistxattr(unsigned int n)
57 {
58 TEST(flistxattr(fd[n], NULL, 0));
59 if (TEST_RETURN == -1) {
60 tst_res(TFAIL | TTERRNO, "flistxattr() failed");
61 return;
62 }
63
64 if (check_suitable_buf(fd[n], TEST_RETURN))
65 tst_res(TPASS, "flistxattr() succeed with suitable buffer");
66 else
67 tst_res(TFAIL, "flistxattr() failed with small buffer");
68 }
69
setup(void)70 static void setup(void)
71 {
72 fd[0] = SAFE_OPEN("testfile1", O_RDWR | O_CREAT, 0644);
73
74 fd[1] = SAFE_OPEN("testfile2", O_RDWR | O_CREAT, 0644);
75
76 SAFE_FSETXATTR(fd[1], SECURITY_KEY, VALUE, VALUE_SIZE, XATTR_CREATE);
77 }
78
cleanup(void)79 static void cleanup(void)
80 {
81 SAFE_CLOSE(fd[1]);
82 SAFE_CLOSE(fd[0]);
83 }
84
85 static struct tst_test test = {
86 .tid = "flistxattr03",
87 .needs_tmpdir = 1,
88 .needs_root = 1,
89 .test = verify_flistxattr,
90 .tcnt = ARRAY_SIZE(fd),
91 .setup = setup,
92 .cleanup = cleanup,
93 };
94
95 #else /* HAVE_SYS_XATTR_H */
96 TST_TEST_TCONF("<sys/xattr.h> does not exist.");
97 #endif
98