readv03.c revision e1f008ec81a2828dfb2113ce97347946f42e9f3e 
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 <sys/fcntl.h>
53#include <errno.h>
54#include <string.h>
55#include <sys/stat.h>
56
57#include "test.h"
58#include "usctest.h"
59
60#define	K_1	1024
61#define MODES   S_IRWXU
62
63char buf1[K_1];
64
65struct iovec rd_iovec[1] = {
66	{buf1, K_1}
67};
68
69const char *TEST_DIR = "alpha";
70int r_val;
71int fd;
72
73char *TCID = "readv03";
74int TST_TOTAL = 1;
75extern int Tst_count;
76
77void setup();
78void cleanup();
79
80int main(int ac, char **av)
81{
82	int lc;			/* loop counter */
83	char *msg;		/* message returned from parse_opts */
84
85	/* parse standard options */
86	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) {
87		tst_brkm(TBROK, tst_exit, "OPTION PARSING ERROR - %s", msg);
88	 /*NOTREACHED*/}
89
90	setup();
91
92	/* The following loop checks looping state if -i option given */
93	for (lc = 0; TEST_LOOPING(lc); lc++) {
94
95		/* reset Tst_count in case we are looping */
96		Tst_count = 0;
97
98		if (readv(fd, rd_iovec, 1) < 0) {
99			if (errno != EISDIR) {
100				tst_resm(TFAIL, "expected errno = EISDIR, "
101					 "got %d", errno);
102			} else {
103				tst_resm(TPASS, "got EISDIR");
104			}
105		} else {
106			tst_resm(TFAIL, "Error: readv returned a positive "
107				 "value");
108		}
109
110	}
111	cleanup();
112	 /*NOTREACHED*/ return 0;
113}
114
115/*
116 * setup() - performs all ONE TIME setup for this test.
117 */
118void setup()
119{
120
121	/* capture signals */
122	tst_sig(NOFORK, DEF_HANDLER, cleanup);
123
124	/* Pause if that option was specified */
125	TEST_PAUSE;
126
127	/* make a temporary directory and cd to it */
128	tst_tmpdir();
129
130	/*
131	 * create a new directory and open it
132	 */
133
134	if ((r_val = mkdir(TEST_DIR, MODES)) == -1) {
135		tst_brkm(TBROK, cleanup, "%s - mkdir() in main() "
136			 "failed", TCID);
137	}
138
139	if ((fd = open(TEST_DIR, O_RDONLY)) == -1) {
140		tst_brkm(TBROK, cleanup, "open of directory failed");
141	}
142
143}
144
145/*
146 * cleanup() - performs all ONE TIME cleanup for this test at
147 *	       completion or premature exit.
148 */
149void cleanup()
150{
151	if (close(fd) < 0) {
152		tst_brkm(TBROK, cleanup, "close failed: errno = %d", errno);
153	}
154	tst_rmdir();
155	tst_exit();
156}
157