1 /*
2 * Copyright (c) 2014 Fujitsu Ltd.
3 * Author: Xing Gu <gux.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 * Description:
19 * Verify that,
20 * 1) splice() returns -1 and sets errno to EBADF if the file
21 * descriptor fd_in is not valid.
22 * 2) splice() returns -1 and sets errno to EBADF if the file
23 * descriptor fd_out is not valid.
24 * 3) splice() returns -1 and sets errno to EBADF if the file
25 * descriptor fd_in does not have proper read-write mode.
26 * 4) splice() returns -1 and sets errno to EINVAL if target
27 * file is opened in append mode.
28 * 5) splice() returns -1 and sets errno to EINVAL if neither
29 * of the descriptors refer to a pipe.
30 * 6) splice() returns -1 and sets errno to ESPIPE if off_in is
31 * not NULL when the file descriptor fd_in refers to a pipe.
32 * 7) splice() returns -1 and sets errno to ESPIPE if off_out is
33 * not NULL when the file descriptor fd_out refers to a pipe.
34 */
35
36 #define _GNU_SOURCE
37
38 #include <sys/types.h>
39 #include <sys/stat.h>
40 #include <fcntl.h>
41 #include <unistd.h>
42
43 #include "test.h"
44 #include "safe_macros.h"
45 #include "lapi/splice.h"
46
47 #define TEST_FILE "testfile"
48 #define TEST_FILE2 "testfile2"
49 #define TEST_FILE3 "testfile3"
50
51 #define STR "abcdefghigklmnopqrstuvwxyz"
52 #define SPLICE_TEST_LEN 10
53
54 static int badfd = -1;
55 static int rdfd;
56 static int wrfd;
57 static int appendfd;
58 static int pipes[2];
59 static loff_t offset;
60
61 static struct test_case_t {
62 int *fdin;
63 loff_t *offin;
64 int *fdout;
65 loff_t *offout;
66 int exp_errno;
67 } test_cases[] = {
68 { &badfd, NULL, &pipes[1], NULL, EBADF },
69 { &pipes[0], NULL, &badfd, NULL, EBADF },
70 { &wrfd, NULL, &pipes[1], NULL, EBADF },
71 { &pipes[0], NULL, &appendfd, NULL, EINVAL },
72 { &rdfd, NULL, &wrfd, NULL, EINVAL },
73 { &pipes[0], &offset, &wrfd, NULL, ESPIPE },
74 { &rdfd, NULL, &pipes[1], &offset, ESPIPE },
75 };
76
77 static void setup(void);
78 static void cleanup(void);
79 static void splice_verify(const struct test_case_t *);
80
81 char *TCID = "splice03";
82 int TST_TOTAL = ARRAY_SIZE(test_cases);
83
main(int ac,char ** av)84 int main(int ac, char **av)
85 {
86 int i, lc;
87
88 tst_parse_opts(ac, av, NULL, NULL);
89
90 setup();
91
92 for (lc = 0; TEST_LOOPING(lc); lc++) {
93 tst_count = 0;
94
95 for (i = 0; i < TST_TOTAL; i++)
96 splice_verify(&test_cases[i]);
97 }
98
99 cleanup();
100 tst_exit();
101 }
102
setup(void)103 void setup(void)
104 {
105 if ((tst_kvercmp(2, 6, 17)) < 0) {
106 tst_brkm(TCONF, cleanup, "This test can only run on kernels "
107 "that are 2.6.17 or higher");
108 }
109
110 TEST_PAUSE;
111
112 tst_sig(FORK, DEF_HANDLER, cleanup);
113
114 tst_tmpdir();
115
116 SAFE_FILE_PRINTF(cleanup, TEST_FILE, STR);
117 rdfd = SAFE_OPEN(cleanup, TEST_FILE, O_RDONLY);
118
119 wrfd = SAFE_OPEN(cleanup, TEST_FILE2,
120 O_WRONLY | O_CREAT, 0644);
121
122 appendfd = SAFE_OPEN(cleanup, TEST_FILE3,
123 O_RDWR | O_CREAT | O_APPEND, 0644);
124
125 SAFE_PIPE(cleanup, pipes);
126
127 SAFE_WRITE(cleanup, 1, pipes[1], STR, sizeof(STR) - 1);
128 }
129
splice_verify(const struct test_case_t * tc)130 static void splice_verify(const struct test_case_t *tc)
131 {
132 TEST(splice(*(tc->fdin), tc->offin, *(tc->fdout),
133 tc->offout, SPLICE_TEST_LEN, 0));
134
135 if (TEST_RETURN != -1) {
136 tst_resm(TFAIL, "splice() returned %ld, "
137 "expected -1, errno:%d", TEST_RETURN,
138 tc->exp_errno);
139 return;
140 }
141
142 if (TEST_ERRNO == tc->exp_errno) {
143 tst_resm(TPASS | TTERRNO, "splice() failed as expected");
144 } else {
145 tst_resm(TFAIL | TTERRNO,
146 "splice() failed unexpectedly; expected: %d - %s",
147 tc->exp_errno, strerror(tc->exp_errno));
148 }
149 }
150
cleanup(void)151 void cleanup(void)
152 {
153 if (rdfd && close(rdfd) < 0)
154 tst_resm(TWARN | TERRNO, "close rdfd failed");
155
156 if (wrfd && close(wrfd) < 0)
157 tst_resm(TWARN | TERRNO, "close wrfd failed");
158
159 if (appendfd && close(appendfd) < 0)
160 tst_resm(TWARN | TERRNO, "close appendfd failed");
161
162 if (pipes[0] && close(pipes[0]) < 0)
163 tst_resm(TWARN | TERRNO, "close pipes[0] failed");
164
165 if (pipes[1] && close(pipes[1]) < 0)
166 tst_resm(TWARN | TERRNO, "close pipes[1] failed");
167
168 tst_rmdir();
169 }
170