close01.c revision d59a659cd639ca2780b00049d102acd2a783d585 
1/*
2 *
3 *   Copyright (c) International Business Machines  Corp., 2001
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
13 *   the GNU 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20/*
21 * NAME
22 * 	close01.c
23 *
24 * DESCRIPTION
25 * 	Test that closing a regular file and a pipe works correctly
26 *
27 * ALGORITHM
28 * 	Creat a file, and dup() a fildes
29 * 	Open a pipe
30 *	call close() using the TEST macro
31 *	if the call fails
32 *	   issue a FAIL message and continue
33 *	else if STD_FUNCTIONAL_TEST
34 *	   attempt to close the file/pipe again
35 *	   if there is an error
36 *	      issue a PASS message
37 *	   else
38 *	      issue a FAIL message
39 *	else
40 *	   issue a PASS message
41 *
42 *
43 * USAGE:  <for command-line>
44 *  close01 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
45 *     where,  -c n : Run n copies concurrently.
46 *             -f   : Turn off functionality Testing.
47 *             -i n : Execute test n times.
48 *             -I x : Execute test for x seconds.
49 *             -P x : Pause for x seconds between iterations.
50 *             -t   : Turn on syscall timing.
51 *
52 * HISTORY
53 *	07/2001 Ported by Wayne Boyer
54 *
55 * RESTRICTIONS
56 * 	None
57 */
58
59#include <stdio.h>
60#include <errno.h>
61#include <fcntl.h>
62#include <sys/stat.h>
63#include "test.h"
64#include "usctest.h"
65
66void cleanup(void);
67void setup(void);
68
69char *TCID = "close01";
70int TST_TOTAL = 2;
71
72char fname[40] = "";
73
74int fild, newfd, pipefildes[2];
75
76struct test_case_t {
77	int *fd;
78	char *type;
79} TC[] = {
80	/* file descriptor for a regular file */
81	{
82	&newfd, "file"},
83	    /* file descriptor for a pipe */
84	{
85	&pipefildes[0], "pipe"}
86};
87
88int main(int ac, char **av)
89{
90
91	int i;
92	int lc;
93	char *msg;
94
95	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL)
96		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
97
98	setup();
99
100	for (lc = 0; TEST_LOOPING(lc); lc++) {
101
102		tst_count = 0;
103
104		if ((fild = creat(fname, 0777)) == -1)
105			tst_brkm(TBROK | TERRNO, cleanup, "can't open file %s",
106				 fname);
107
108		if ((newfd = dup(fild)) == -1)
109			tst_brkm(TBROK | TERRNO, cleanup,
110				 "can't dup the file des");
111
112		if (pipe(pipefildes) == -1) {
113			tst_brkm(TBROK | TERRNO, cleanup, "can't open pipe");
114		}
115
116		for (i = 0; i < TST_TOTAL; i++) {
117
118			TEST(close(*TC[i].fd));
119
120			if (TEST_RETURN == -1) {
121				tst_resm(TFAIL, "call failed unexpectedly");
122				continue;
123			}
124
125			if (STD_FUNCTIONAL_TEST) {
126				if (close(*TC[i].fd) == -1) {
127					tst_resm(TPASS, "%s appears closed",
128						 TC[i].type);
129				} else {
130					tst_resm(TFAIL, "%s close succeeded on"
131						 "second attempt", TC[i].type);
132				}
133			} else {
134				tst_resm(TPASS, "call succeeded");
135			}
136		}
137
138	}
139	cleanup();
140
141	tst_exit();
142}
143
144void setup(void)
145{
146	int mypid;
147
148	tst_sig(FORK, DEF_HANDLER, cleanup);
149
150	umask(0);
151
152	TEST_PAUSE;
153
154	tst_tmpdir();
155
156	mypid = getpid();
157	sprintf(fname, "fname.%d", mypid);
158}
159
160void cleanup(void)
161{
162	close(fild);
163
164	TEST_CLEANUP;
165
166	tst_rmdir();
167
168}
169