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
41 static void setup(void);
42 static void cleanup(void);
43
44 #define INVALID_FLAG -1
45
46 static int old_fd;
47 static int new_fd;
48
49 static 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
60 char *TCID = "dup3_02";
61 int TST_TOTAL = ARRAY_SIZE(test_cases);
62
main(int ac,char ** av)63 int 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
setup(void)100 static 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
cleanup(void)112 static void cleanup(void)
113 {
114 if (old_fd > 0)
115 SAFE_CLOSE(NULL, old_fd);
116
117 tst_rmdir();
118 }
119