1 /*
2 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
3 * 06/2017 modified by Xiao Yang <yangx.jy@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 * Further, this software is distributed without any warranty that it is
14 * free of the rightful claim of any third person regarding infringement
15 * or the like. Any license provided herein, whether implied or
16 * otherwise, applies only to this software file. Patent licenses, if
17 * any, provided herein do not apply to combinations of this program with
18 * other software, or any other product whatsoever.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, see <http://www.gnu.org/licenses/>.
22 */
23
24 /*
25 * DESCRIPTION
26 * 1) lseek(2) fails and sets errno to EBADF when fd is invalid.
27 * 2) lseek(2) fails ans sets errno to EINVAL when whence is invalid.
28 * 3) lseek(2) fails and sets errno to ESPIPE when fd is associated
29 * with a pipe or FIFO.
30 */
31
32 #include <errno.h>
33 #include <sys/types.h>
34 #include <unistd.h>
35 #include <stdio.h>
36 #include <sys/stat.h>
37 #include "tst_test.h"
38
39 #define TFILE "tfile"
40 #define TFIFO1 "tfifo1"
41 #define TFIFO2 "tfifo2"
42
43 static int bad_fd = -1;
44 static int fd, pfd1, pfd2;
45 static int pfds[2];
46
47 static struct tcase {
48 int *fd;
49 int whence;
50 int exp_err;
51 } tcases[] = {
52 {&bad_fd, SEEK_SET, EBADF},
53 {&bad_fd, SEEK_CUR, EBADF},
54 {&bad_fd, SEEK_END, EBADF},
55 {&fd, 5, EINVAL},
56 {&fd, -1, EINVAL},
57 {&fd, 7, EINVAL},
58 {&pfd1, SEEK_SET, ESPIPE},
59 {&pfd1, SEEK_CUR, ESPIPE},
60 {&pfd1, SEEK_END, ESPIPE},
61 {&pfds[0], SEEK_SET, ESPIPE},
62 {&pfds[0], SEEK_CUR, ESPIPE},
63 {&pfds[0], SEEK_END, ESPIPE},
64 {&pfd2, SEEK_SET, ESPIPE},
65 {&pfd2, SEEK_CUR, ESPIPE},
66 {&pfd2, SEEK_END, ESPIPE},
67 };
68
verify_lseek(unsigned int n)69 static void verify_lseek(unsigned int n)
70 {
71 struct tcase *tc = &tcases[n];
72
73 TEST(lseek(*tc->fd, (off_t) 1, tc->whence));
74 if (TST_RET != (off_t) -1) {
75 tst_res(TFAIL, "lseek(%d, 1, %d) succeeded unexpectedly",
76 *tc->fd, tc->whence);
77 return;
78 }
79
80 if (TST_ERR == tc->exp_err) {
81 tst_res(TPASS | TTERRNO, "lseek(%d, 1, %d) failed as expected",
82 *tc->fd, tc->whence);
83 } else {
84 tst_res(TFAIL | TTERRNO, "lseek(%d, 1, %d) failed "
85 "unexpectedly, expected %s", *tc->fd, tc->whence,
86 tst_strerrno(tc->exp_err));
87 }
88 }
89
setup(void)90 static void setup(void)
91 {
92 fd = SAFE_OPEN(TFILE, O_RDWR | O_CREAT, 0777);
93 SAFE_MKFIFO(TFIFO1, 0777);
94 pfd1 = SAFE_OPEN(TFIFO1, O_RDWR, 0777);
95 SAFE_PIPE(pfds);
96 SAFE_MKNOD(TFIFO2, S_IFIFO | 0777, 0);
97 pfd2 = SAFE_OPEN(TFIFO2, O_RDWR, 0777);
98 }
99
cleanup(void)100 static void cleanup(void)
101 {
102 if (fd > 0)
103 SAFE_CLOSE(fd);
104
105 if (pfd1 > 0)
106 SAFE_CLOSE(pfd1);
107
108 if (pfds[0] > 0)
109 SAFE_CLOSE(pfds[0]);
110
111 if (pfds[1] > 0)
112 SAFE_CLOSE(pfds[1]);
113
114 if (pfd2 > 0)
115 SAFE_CLOSE(pfd2);
116 }
117
118 static struct tst_test test = {
119 .setup = setup,
120 .cleanup = cleanup,
121 .tcnt = ARRAY_SIZE(tcases),
122 .test = verify_lseek,
123 .needs_tmpdir = 1,
124 };
125