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 * Test Name: lseek10
22 *
23 * Test Description:
24 * Verify that,
25 * 1. lseek() returns -1 and sets errno to ESPIPE, if the file handle of
26 * the specified file is associated with a pipe, socket, or FIFO.
27 * 2. lseek() returns -1 and sets errno to EINVAL, if the 'Whence' argument
28 * is not a proper value.
29 * 3. lseek() returns -1 and sets errno to EBADF, if the file handle of
30 * the specified file is not valid.
31 *
32 * Expected Result:
33 * lseek() should fail with return value -1 and set expected errno.
34 *
35 * Algorithm:
36 * Setup:
37 * Setup signal handling.
38 * Create temporary directory.
39 * Pause for SIGUSR1 if option specified.
40 *
41 * Test:
42 * Loop if the proper options are given.
43 * Execute system call
44 * Check return code, if system call failed (return=-1)
45 * if errno set == expected errno
46 * Issue sys call fails with expected return value and errno.
47 * Otherwise,
48 * Issue sys call fails with unexpected errno.
49 * Otherwise,
50 * Issue sys call returns unexpected value.
51 *
52 * Cleanup:
53 * Print errno log and/or timing stats if options given
54 * Delete the temporary directory(s)/file(s) created.
55 *
56 * Usage: <for command-line>
57 * lseek10 [-c n] [-e] [-i n] [-I x] [-p x] [-t]
58 * where, -c n : Run n copies concurrently.
59 * -e : Turn on errno logging.
60 * -i n : Execute test n times.
61 * -I x : Execute test for x seconds.
62 * -P x : Pause for x seconds between iterations.
63 * -t : Turn on syscall timing.
64 *
65 * HISTORY
66 * 07/2001 Ported by Wayne Boyer
67 *
68 * RESTRICTIONS:
69 * None.
70 */
71
72 #include <stdio.h>
73 #include <unistd.h>
74 #include <sys/types.h>
75 #include <errno.h>
76 #include <unistd.h>
77 #include <fcntl.h>
78 #include <utime.h>
79 #include <string.h>
80 #include <sys/stat.h>
81 #include <signal.h>
82
83 #include "test.h"
84
85 #define TEMP_FILE1 "tmp_file1"
86 #define TEMP_FILE2 "tmp_file2"
87 #define TEMP_FILE3 "tmp_file3"
88 #define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
89 #define PIPE_MODE S_IFIFO | S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
90 #define SEEK_TOP 10
91
92 char *TCID = "lseek10";
93 int TST_TOTAL = 3;
94
95 int no_setup();
96 int setup1(); /* setup function to test lseek() for ESPIPE */
97 int setup2(); /* setup function to test lseek() for EINVAL */
98 int setup3(); /* setup function to test lseek() for EBADF */
99
100 int fd1; /* file handle for testfile1 */
101 int fd2; /* file handle for testfile2 */
102 int fd3; /* file handle for testfile3 */
103
104 struct test_case_t { /* test case struct. to hold ref. test cond's */
105 int fd;
106 int Whence;
107 char *desc;
108 int exp_errno;
109 int (*setupfunc) ();
110 } Test_cases[] = {
111 {
112 1, SEEK_SET, "'fd' associated with a pipe/fifo", ESPIPE, setup1}, {
113 2, SEEK_TOP, "'whence' argument is not valid", EINVAL, setup2}, {
114 3, SEEK_SET, "'fd' is not an open file descriptor", EBADF, setup3},
115 {
116 0, 0, NULL, 0, no_setup}
117 };
118
119 void setup(); /* Main setup function of test */
120 void cleanup(); /* cleanup function for the test */
121
main(int ac,char ** av)122 int main(int ac, char **av)
123 {
124 int lc;
125 int fildes; /* file handle for testfile */
126 int whence; /* position of file handle in the file */
127 char *test_desc; /* test specific error message */
128 int ind; /* counter to test different test conditions */
129
130 tst_parse_opts(ac, av, NULL, NULL);
131
132 setup();
133
134 for (lc = 0; TEST_LOOPING(lc); lc++) {
135
136 tst_count = 0;
137
138 for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
139 fildes = Test_cases[ind].fd;
140 test_desc = Test_cases[ind].desc;
141 whence = Test_cases[ind].Whence;
142
143 /* Assign the 'fd' values appropriatly */
144 if (fildes == 1) {
145 fildes = fd1;
146 } else if (fildes == 2) {
147 fildes = fd2;
148 } else {
149 fildes = fd3;
150 }
151 /*
152 * Invoke lseek(2) to test different test conditions.
153 * Verify that it fails with -1 return value and
154 * sets appropriate errno.
155 */
156 TEST(lseek(fildes, 0, whence));
157
158 if (TEST_RETURN != (off_t) - 1) {
159 tst_resm(TFAIL,
160 "lseek() returned %ld, expected "
161 "-1, errno:%d", TEST_RETURN,
162 Test_cases[ind].exp_errno);
163 continue;
164 }
165 if (TEST_ERRNO == Test_cases[ind].exp_errno) {
166 tst_resm(TPASS, "lseek() fails, %s, errno:%d",
167 test_desc, TEST_ERRNO);
168 } else {
169 tst_resm(TFAIL, "lseek() fails, %s, errno:%d, "
170 "expected errno:%d", test_desc,
171 TEST_ERRNO, Test_cases[ind].exp_errno);
172 }
173 }
174 }
175
176 cleanup();
177 tst_exit();
178
179 }
180
181 /*
182 * setup() - performs all ONE TIME setup for this test.
183 * Create a temporary directory and change directory to it.
184 * Invoke individual test setup functions according to the order
185 * set in test struct. definition.
186 */
setup(void)187 void setup(void)
188 {
189 int ind;
190
191 tst_sig(NOFORK, DEF_HANDLER, cleanup);
192
193 TEST_PAUSE;
194
195 tst_tmpdir();
196
197 /* call individual setup functions */
198 for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
199 Test_cases[ind].setupfunc();
200 }
201 }
202
203 /*
204 * no_setup() - This is a dummy function which simply returns 0.
205 */
no_setup(void)206 int no_setup(void)
207 {
208 return 0;
209 }
210
211 /*
212 * setup1() - setup function for a test condition for which lseek(2)
213 * returns -1 and sets errno to ESPIPE.
214 * Creat a named pipe/fifo using mknod() and open it for
215 * reading/writing.
216 * This function returns 0 on success.
217 */
setup1(void)218 int setup1(void)
219 {
220 /* Creat a named pipe/fifo using mknod() */
221 if (mknod(TEMP_FILE1, PIPE_MODE, 0) < 0) {
222 tst_brkm(TBROK, cleanup,
223 "mknod(%s, %#o, 0) Failed, errno=%d :%s",
224 TEMP_FILE1, FILE_MODE, errno, strerror(errno));
225 }
226
227 /* Open the named pipe/fifo for reading/writing */
228 if ((fd1 = open(TEMP_FILE1, O_RDWR)) < 0) {
229 tst_brkm(TBROK, cleanup,
230 "open(%s, O_RDWR) Failed, errno=%d, :%s",
231 TEMP_FILE1, errno, strerror(errno));
232 }
233
234 return 0;
235 }
236
237 /*
238 * setup2() - setup function for a test condition for which lseek(2)
239 * returns -1 and sets errno to EINVAL.
240 * Creat a temporary file for reading/writing and write some data
241 * into it.
242 * This function returns 0 on success.
243 */
setup2(void)244 int setup2(void)
245 {
246 char write_buff[BUFSIZ]; /* buffer to hold data */
247
248 /* Get the data to be written to temporary file */
249 strcpy(write_buff, "abcdefg");
250
251 /* Creat/open a temporary file under above directory */
252 if ((fd2 = open(TEMP_FILE2, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
253 tst_brkm(TBROK, cleanup,
254 "open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s",
255 TEMP_FILE2, FILE_MODE, errno, strerror(errno));
256 }
257
258 /* Write data into temporary file */
259 if (write(fd2, write_buff, sizeof(write_buff)) <= 0) {
260 tst_brkm(TBROK, cleanup,
261 "write(2) on %s Failed, errno=%d : %s",
262 TEMP_FILE2, errno, strerror(errno));
263 }
264
265 return 0;
266 }
267
268 /*
269 * setup3() - setup function for a test condition for which lseek(2)
270 * returns -1 and sets errno to EBADF.
271 * Creat a temporary file for reading/writing and close it.
272 * This function returns 0 on success.
273 */
setup3(void)274 int setup3(void)
275 {
276 /* Creat/open a temporary file under above directory */
277 if ((fd3 = open(TEMP_FILE3, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
278 tst_brkm(TBROK, cleanup,
279 "open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s",
280 TEMP_FILE3, FILE_MODE, errno, strerror(errno));
281 }
282
283 /* Close the temporary file created above */
284 if (close(fd3) < 0) {
285 tst_brkm(TBROK, cleanup,
286 "close(%s) Failed, errno=%d : %s:",
287 TEMP_FILE3, errno, strerror(errno));
288 }
289
290 return 0;
291 }
292
293 /*
294 * cleanup() - performs all ONE TIME cleanup for this test at
295 * completion or premature exit.
296 * Remove the test directory and testfile(s) created in the setup.
297 */
cleanup(void)298 void cleanup(void)
299 {
300
301 /* Close the temporary file(s) created in setup1/setup2 */
302 if (close(fd1) < 0) {
303 tst_brkm(TFAIL, NULL,
304 "close(%s) Failed, errno=%d : %s:",
305 TEMP_FILE1, errno, strerror(errno));
306 }
307 if (close(fd2) < 0) {
308 tst_brkm(TFAIL, NULL,
309 "close(%s) Failed, errno=%d : %s:",
310 TEMP_FILE2, errno, strerror(errno));
311 }
312
313 tst_rmdir();
314
315 }
316