1 /*
2 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11 *
12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
14 * or the like. Any license provided herein, whether implied or
15 * otherwise, applies only to this software file. Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write the Free Software Foundation, Inc.,
21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 *
23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
24 * Mountain View, CA 94043, or:
25 *
26 * http://www.sgi.com
27 *
28 * For further information regarding this notice, see:
29 *
30 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
31 *
32 */
33 /* $Id: read01.c,v 1.8 2009/11/02 13:57:17 subrata_modak Exp $ */
34 /**********************************************************
35 *
36 * OS Test - Silicon Graphics, Inc.
37 *
38 * TEST IDENTIFIER : read01
39 *
40 * EXECUTED BY : anyone
41 *
42 * TEST TITLE : Basic test for read(2)
43 *
44 * PARENT DOCUMENT : usctpl01
45 *
46 * TEST CASE TOTAL : 1
47 *
48 * WALL CLOCK TIME : 1
49 *
50 * CPU TYPES : ALL
51 *
52 * AUTHOR : William Roske
53 *
54 * CO-PILOT : Dave Fenner
55 *
56 * DATE STARTED : 03/30/92
57 *
58 * INITIAL RELEASE : UNICOS 7.0
59 *
60 * TEST CASES
61 *
62 * 1.) read(2) returns...(See Description)
63 *
64 * INPUT SPECIFICATIONS
65 * The standard options for system call tests are accepted.
66 * (See the parse_opts(3) man page).
67 *
68 * OUTPUT SPECIFICATIONS
69 *$
70 * DURATION
71 * Terminates - with frequency and infinite modes.
72 *
73 * SIGNALS
74 * Uses SIGUSR1 to pause before test if option set.
75 * (See the parse_opts(3) man page).
76 *
77 * RESOURCES
78 * None
79 *
80 * ENVIRONMENTAL NEEDS
81 * No run-time environmental needs.
82 *
83 * SPECIAL PROCEDURAL REQUIREMENTS
84 * None
85 *
86 * INTERCASE DEPENDENCIES
87 * None
88 *
89 * DETAILED DESCRIPTION
90 * This is a Phase I test for the read(2) system call. It is intended
91 * to provide a limited exposure of the system call, for now. It
92 * should/will be extended when full functional tests are written for
93 * read(2).
94 *
95 * Setup:
96 * Setup signal handling.
97 * Pause for SIGUSR1 if option specified.
98 *
99 * Test:
100 * Loop if the proper options are given.
101 * Execute system call
102 * Check return code, if system call failed (return=-1)
103 * Log the errno and Issue a FAIL message.
104 * Otherwise, Issue a PASS message.
105 *
106 * Cleanup:
107 * Print errno log and/or timing stats if options given
108 *
109 *
110 *#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/
111
112 #include <sys/types.h>
113 #include <sys/fcntl.h>
114 #include <sys/param.h>
115 #include <errno.h>
116 #include <signal.h>
117 #include <string.h>
118 #include "test.h"
119
120 /*
121 * Set READ_BLOCK_SIZE to the block size of the system.
122 */
123 #ifdef __linux__
124 #define READ_BLOCK_SIZE DEV_BSIZE
125 #else
126 #define READ_BLOCK_SIZE BSIZE
127 #endif
128
129 void setup();
130 void cleanup();
131
132 char *TCID = "read01";
133 int TST_TOTAL = 1;
134
135 char fname[255];
136 int fd, i;
137 int offset = 0;
138 char *s;
139
main(int ac,char ** av)140 int main(int ac, char **av)
141 {
142 int lc;
143
144 /***************************************************************
145 * parse standard options
146 ***************************************************************/
147 tst_parse_opts(ac, av, NULL, NULL);
148
149 /***************************************************************
150 * perform global setup for test
151 ***************************************************************/
152 setup();
153
154 /***************************************************************
155 * check looping state if -c option given
156 ***************************************************************/
157 for (lc = 0; TEST_LOOPING(lc); lc++) {
158
159 tst_count = 0;
160
161 if (write(fd, s, READ_BLOCK_SIZE) == -1) {
162 tst_brkm(TBROK, cleanup,
163 "write(%s, %s, %d) Failed, errno=%d : %s",
164 fname, s, READ_BLOCK_SIZE, errno,
165 strerror(errno));
166 }
167 offset += READ_BLOCK_SIZE;
168 if (lseek(fd, (long)(offset - READ_BLOCK_SIZE), 0) == -1) {
169 tst_brkm(TBROK, cleanup,
170 "lseek(%s, %ld, 0) Failed, errno=%d : %s",
171 fname, (long)(offset - READ_BLOCK_SIZE), errno,
172 strerror(errno));
173 }
174 /*
175 * Call read(2)
176 */
177 TEST(read(fd, s, READ_BLOCK_SIZE));
178
179 /* check return code */
180 if (TEST_RETURN == -1) {
181 tst_resm(TFAIL,
182 "read(fd, s, READ_BLOCK_SIZE) Failed, errno=%d : %s",
183 TEST_ERRNO, strerror(TEST_ERRNO));
184 } else {
185 tst_resm(TPASS, "read(pfds) returned %ld",
186 TEST_RETURN);
187 }
188
189 }
190
191 cleanup();
192 tst_exit();
193 }
194
195 /***************************************************************
196 * setup() - performs all ONE TIME setup for this test.
197 ***************************************************************/
setup(void)198 void setup(void)
199 {
200
201 tst_sig(NOFORK, DEF_HANDLER, cleanup);
202
203 TEST_PAUSE;
204
205 tst_tmpdir();
206
207 if ((s = malloc(READ_BLOCK_SIZE)) == NULL) {
208 tst_brkm(TBROK, cleanup,
209 "malloc(%d) Failed, errno=%d : %s",
210 READ_BLOCK_SIZE, errno, strerror(errno));
211 }
212 (void)memset(s, '*', READ_BLOCK_SIZE);
213 for (i = 0; i < READ_BLOCK_SIZE; i++) {
214 if (s[i] != '*') {
215 tst_brkm(TBROK, cleanup,
216 "File Data pattern not setup correctly : expected * at s[%d] : found %c",
217 i, s[i]);
218 }
219 }
220 sprintf(fname, "./tfile_%d", getpid());
221 if ((fd = open(fname, O_RDWR | O_CREAT, 0700)) == -1) {
222 tst_brkm(TBROK, cleanup,
223 "open(%s, O_RDWR|O_CREAT,0700) Failed, errno=%d : %s",
224 fname, errno, strerror(errno));
225 }
226
227 }
228
229 /***************************************************************
230 * cleanup() - performs all ONE TIME cleanup for this test at
231 * completion or premature exit.
232 ***************************************************************/
cleanup(void)233 void cleanup(void)
234 {
235
236 if (close(fd) == -1) {
237 tst_resm(TWARN, "close(%s) Failed, errno=%d : %s",
238 fname, errno, strerror(errno));
239 }
240
241 tst_rmdir();
242
243 }
244