1 /*
2 *
3 * Copyright (C) Bull S.A. 2001
4 * Copyright (c) International Business Machines Corp., 2001
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
14 * the GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 /*
22 * NAME
23 * readv03.c
24 *
25 * DESCRIPTION
26 * Testcase to check the error condition of the readv(2) system call
27 * when fd refers to a directory.
28 *
29 * CALLS
30 * readv()
31 *
32 * ALGORITHM
33 * loop if that option was specified
34 * call readv() when fd refers to a directory.
35 * check the errno value
36 * issue a PASS message if we get EISDIR - errno 21
37 * otherwise, the tests fails
38 * issue a FAIL message
39 * call cleanup
40 *
41 * USAGE$
42 * readv03
43 *
44 * HISTORY
45 * 05/2002 Ported by Jacky Malcles
46 *
47 * RESTRICTIONS
48 * None
49 */
50 #include <sys/types.h>
51 #include <sys/uio.h>
52 #include <fcntl.h>
53 #include <errno.h>
54 #include <string.h>
55 #include <sys/stat.h>
56
57 #include "test.h"
58 #include "safe_macros.h"
59
60 #define K_1 1024
61 #define MODES S_IRWXU
62
63 char buf1[K_1];
64
65 struct iovec rd_iovec[1] = {
66 {buf1, K_1}
67 };
68
69 const char *TEST_DIR = "alpha";
70 int r_val;
71 int fd;
72
73 char *TCID = "readv03";
74 int TST_TOTAL = 1;
75
76 void setup();
77 void cleanup();
78
main(int ac,char ** av)79 int main(int ac, char **av)
80 {
81 int lc;
82
83 tst_parse_opts(ac, av, NULL, NULL);
84
85 setup();
86
87 /* The following loop checks looping state if -i option given */
88 for (lc = 0; TEST_LOOPING(lc); lc++) {
89
90 /* reset tst_count in case we are looping */
91 tst_count = 0;
92
93 if (readv(fd, rd_iovec, 1) < 0) {
94 if (errno != EISDIR) {
95 tst_resm(TFAIL, "expected errno = EISDIR, "
96 "got %d", errno);
97 } else {
98 tst_resm(TPASS, "got EISDIR");
99 }
100 } else {
101 tst_resm(TFAIL, "Error: readv returned a positive "
102 "value");
103 }
104
105 }
106 cleanup();
107 tst_exit();
108
109 }
110
111 /*
112 * setup() - performs all ONE TIME setup for this test.
113 */
setup(void)114 void setup(void)
115 {
116
117 tst_sig(NOFORK, DEF_HANDLER, cleanup);
118
119 TEST_PAUSE;
120
121 /* make a temporary directory and cd to it */
122 tst_tmpdir();
123
124 /*
125 * create a new directory and open it
126 */
127
128 if ((r_val = mkdir(TEST_DIR, MODES)) == -1) {
129 tst_brkm(TBROK, cleanup, "%s - mkdir() in main() "
130 "failed", TCID);
131 }
132
133 if ((fd = open(TEST_DIR, O_RDONLY)) == -1) {
134 tst_brkm(TBROK, cleanup, "open of directory failed");
135 }
136
137 }
138
139 /*
140 * cleanup() - performs all ONE TIME cleanup for this test at
141 * completion or premature exit.
142 */
cleanup(void)143 void cleanup(void)
144 {
145 SAFE_CLOSE(cleanup, fd);
146 tst_rmdir();
147
148 }
149