1 /*
2 * Copyright (c) 2014 Fujitsu Ltd.
3 * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.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 the
13 * GNU Library 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; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 *
19 */
20 /*
21 * Test Description:
22 * Verify that,
23 * 1. pselect() fails with -1 return value and sets errno to EBADF
24 * if a file descriptor that was already closed.
25 * 2. pselect() fails with -1 return value and sets errno to EINVAL
26 * if nfds was negative.
27 * 3. pselect() fails with -1 return value and sets errno to EINVAL
28 * if the value contained within timeout was invalid.
29 */
30
31 #include <errno.h>
32 #include "test.h"
33 #include "safe_macros.h"
34
35 TCID_DEFINE(pselect02);
36
37 static fd_set read_fds;
38 static struct timespec time_buf;
39
40 static struct test_case_t {
41 int nfds;
42 fd_set *readfds;
43 struct timespec *timeout;
44 int exp_errno;
45 } test_cases[] = {
46 {128, &read_fds, NULL, EBADF},
47 {-1, NULL, NULL, EINVAL},
48 {128, NULL, &time_buf, EINVAL},
49 };
50
51 int TST_TOTAL = ARRAY_SIZE(test_cases);
52
53 static void setup(void);
54 static void cleanup(void);
55 static void pselect_verify(const struct test_case_t *);
56
main(int argc,char ** argv)57 int main(int argc, char **argv)
58 {
59 int lc, i;
60
61 tst_parse_opts(argc, argv, NULL, NULL);
62
63 setup();
64
65 for (lc = 0; TEST_LOOPING(lc); lc++) {
66 tst_count = 0;
67 for (i = 0; i < TST_TOTAL; i++)
68 pselect_verify(&test_cases[i]);
69 }
70
71 cleanup();
72 tst_exit();
73 }
74
setup(void)75 static void setup(void)
76 {
77 int fd;
78
79 tst_sig(NOFORK, DEF_HANDLER, cleanup);
80
81 TEST_PAUSE;
82
83 tst_tmpdir();
84
85 fd = SAFE_OPEN(cleanup, "test_file", O_RDWR | O_CREAT, 0777);
86
87 FD_ZERO(&read_fds);
88 FD_SET(fd, &read_fds);
89
90 SAFE_CLOSE(cleanup, fd);
91
92 time_buf.tv_sec = -1;
93 time_buf.tv_nsec = 0;
94 }
95
pselect_verify(const struct test_case_t * test)96 static void pselect_verify(const struct test_case_t *test)
97 {
98 TEST(pselect(test->nfds, test->readfds, NULL, NULL, test->timeout,
99 NULL));
100
101 if (TEST_RETURN != -1) {
102 tst_resm(TFAIL, "pselect() succeeded unexpectedly");
103 return;
104 }
105
106 if (TEST_ERRNO == test->exp_errno) {
107 tst_resm(TPASS | TTERRNO, "pselect() failed as expected");
108 } else {
109 tst_resm(TFAIL | TTERRNO,
110 "pselect() failed unexpectedly; expected: %d - %s",
111 test->exp_errno, strerror(test->exp_errno));
112 }
113 }
114
cleanup(void)115 static void cleanup(void)
116 {
117 tst_rmdir();
118 }
119