1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
4 *  Authors:	William Roske, Dave Fenner
5 *
6 *  06/2019 Ported to new library:
7 *		Christian Amann <camann@suse.com>
8 */
9/*
10 * Basic test for lstat():
11 *
12 * Tests if lstat() writes correct information about a symlink
13 * into the stat structure.
14 */
15
16#include <errno.h>
17#include <string.h>
18#include <unistd.h>
19#include <sys/stat.h>
20#include <sys/types.h>
21#include "tst_test.h"
22
23#define TESTFILE        "tst_file"
24#define TESTSYML        "tst_syml"
25
26static uid_t user_id;
27static gid_t group_id;
28
29static void run(void)
30{
31	struct stat stat_buf;
32
33	memset(&stat_buf, 0, sizeof(stat_buf));
34
35	TEST(lstat(TESTSYML, &stat_buf));
36	if (TST_RET == -1)
37		tst_res(TFAIL | TTERRNO, "Calling lstat() failed");
38
39	if ((stat_buf.st_mode & S_IFMT) != S_IFLNK ||
40	    stat_buf.st_uid != user_id ||
41	    stat_buf.st_gid != group_id ||
42	    stat_buf.st_size != strlen(TESTFILE)) {
43		tst_res(TFAIL,
44			"lstat() reported incorrect values for the symlink!");
45	} else {
46		tst_res(TPASS,
47			"lstat() reported correct values for the symlink!");
48	}
49}
50
51static void setup(void)
52{
53	user_id  = getuid();
54	group_id = getgid();
55
56	SAFE_TOUCH(TESTFILE, 0644, NULL);
57	SAFE_SYMLINK(TESTFILE, TESTSYML);
58}
59
60static void cleanup(void)
61{
62	SAFE_UNLINK(TESTSYML);
63}
64
65static struct tst_test test = {
66	.test_all = run,
67	.setup = setup,
68	.cleanup = cleanup,
69	.needs_tmpdir = 1,
70};
71