1/*
2 * Copyright (c) 2013 Fujitsu Ltd.
3 * Author: Xiaoguang Wang <wangxg.fnst@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 along
14 * with this program; if not, write the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
16 */
17
18/*
19 * Description:
20 * Verify that,
21 *  1. dup3() fails with -1 return value and sets errno to EINVAL
22 *     if flags contain an invalid value or oldfd was equal to newfd.
23 */
24
25#define _GNU_SOURCE
26
27#include <stdio.h>
28#include <errno.h>
29#include <unistd.h>
30#include <fcntl.h>
31#include <string.h>
32#include <signal.h>
33#include <sys/types.h>
34
35#include "test.h"
36#include "safe_macros.h"
37#include "lapi/fcntl.h"
38#include "lapi/syscalls.h"
39
40
41static void setup(void);
42static void cleanup(void);
43
44#define INVALID_FLAG	-1
45
46static int old_fd;
47static int new_fd;
48
49static struct test_case_t {
50	int *oldfd;
51	int *newfd;
52	int flags;
53	int exp_errno;
54} test_cases[] = {
55	{&old_fd, &old_fd, O_CLOEXEC, EINVAL},
56	{&old_fd, &old_fd, 0, EINVAL},
57	{&old_fd, &new_fd, INVALID_FLAG, EINVAL}
58};
59
60char *TCID = "dup3_02";
61int TST_TOTAL = ARRAY_SIZE(test_cases);
62
63int main(int ac, char **av)
64{
65	int lc;
66	int i;
67
68	tst_parse_opts(ac, av, NULL, NULL);
69
70	setup();
71
72	for (lc = 0; TEST_LOOPING(lc); lc++) {
73		tst_count = 0;
74
75		for (i = 0; i < TST_TOTAL; i++) {
76			TEST(ltp_syscall(__NR_dup3, *(test_cases[i].oldfd),
77			     *(test_cases[i].newfd), test_cases[i].flags));
78
79			if (TEST_RETURN != -1) {
80				tst_resm(TFAIL, "dup3 succeeded unexpectedly");
81				continue;
82			}
83
84			if (TEST_ERRNO == test_cases[i].exp_errno) {
85				tst_resm(TPASS | TTERRNO,
86					 "dup3 failed as expected");
87			} else {
88				tst_resm(TFAIL | TTERRNO,
89					 "dup3 failed unexpectedly; expected:"
90					 "%d - %s", test_cases[i].exp_errno,
91					 strerror(test_cases[i].exp_errno));
92			}
93		}
94	}
95
96	cleanup();
97	tst_exit();
98}
99
100static void setup(void)
101{
102	tst_sig(NOFORK, DEF_HANDLER, cleanup);
103
104	tst_tmpdir();
105
106	TEST_PAUSE;
107
108	old_fd = SAFE_CREAT(cleanup, "testeinval.file", 0644);
109	new_fd = -1;
110}
111
112static void cleanup(void)
113{
114	if (old_fd > 0)
115		SAFE_CLOSE(NULL, old_fd);
116
117	tst_rmdir();
118}
119