1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) International Business Machines  Corp., 2001
4 */
5
6/*\
7 * [Description]
8 *
9 * Test whether the inode number are the same for both file descriptors.
10 */
11
12#include <unistd.h>
13#include "tst_test.h"
14#include "tst_safe_macros.h"
15
16static int fd[2] = {-1, -1};
17static int nfd[2] = {10, 20};
18
19static void setup(void)
20{
21	SAFE_PIPE(fd);
22}
23
24static void cleanup(void)
25{
26	unsigned int i;
27
28	for (i = 0; i < ARRAY_SIZE(fd); i++) {
29		close(fd[i]);
30		close(nfd[i]);
31	}
32}
33
34static void run(unsigned int i)
35{
36	struct stat oldbuf, newbuf;
37
38	TST_EXP_VAL(dup2(fd[i], nfd[i]), nfd[i]);
39	if (TST_RET == -1)
40		return;
41
42	SAFE_FSTAT(fd[i], &oldbuf);
43	SAFE_FSTAT(nfd[i], &newbuf);
44
45	TST_EXP_EQ_LU(oldbuf.st_ino, newbuf.st_ino);
46
47	SAFE_CLOSE(TST_RET);
48}
49
50static struct tst_test test = {
51	.tcnt = ARRAY_SIZE(fd),
52	.test = run,
53	.setup = setup,
54	.cleanup = cleanup,
55};
56