robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright (c) International Business Machines Corp., 2002 |
| 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 |
Wanlong Gao | 4548c6c | 2012-10-19 18:03:36 +0800 | [diff] [blame] | 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 18 | */ |
| 19 | |
| 20 | /* |
| 21 | * NAME |
| 22 | * pwrite04.c (ported from SPIE, section2/filesuite/pread_pwrite.c, |
| 23 | * by Airong Zhang) |
| 24 | * |
| 25 | * TEST SUMMARY |
| 26 | * Test the pwrite() system call with O_APPEND. |
| 27 | * |
| 28 | * USAGE |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 29 | * pwrite04 |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 30 | * |
| 31 | */ |
| 32 | |
| 33 | #define _XOPEN_SOURCE 500 |
| 34 | #include <stdio.h> |
| 35 | #include <sys/types.h> |
| 36 | #include <sys/stat.h> |
| 37 | #include <unistd.h> |
| 38 | #include <sys/fcntl.h> |
| 39 | #include <memory.h> |
| 40 | #include <errno.h> |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 41 | #include "test.h" |
| 42 | |
| 43 | char *TCID = "pwrite04"; |
| 44 | int TST_TOTAL = 1; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 45 | int local_flag; |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 46 | |
| 47 | #define PASSED 1 |
| 48 | #define FAILED 0 |
| 49 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 50 | int block_cnt = 0; |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 51 | |
| 52 | #define K1 1024 |
| 53 | #define K2 (K1 * 2) |
| 54 | #define K3 (K1 * 3) |
| 55 | #define K4 (K1 * 4) |
| 56 | #define K5 (K1 * 5) |
| 57 | #define NBUFS 4 |
| 58 | #define DATA_FILE "pwrite04_file" |
| 59 | |
| 60 | char name[256], fname[256]; |
| 61 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 62 | void init_buffers(char *[]); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 63 | void l_seek(int, off_t, int, off_t); |
subrata_modak | 24fc213 | 2008-11-11 05:57:38 +0000 | [diff] [blame] | 64 | static void cleanup(void); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 65 | |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 66 | int main(int ac, char *av[]) |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 67 | { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 68 | int fd; |
| 69 | int nbytes; |
| 70 | char *wbuf[NBUFS]; |
| 71 | struct stat statbuf; |
Cyril Hrubis | 89af32a | 2012-10-24 16:39:11 +0200 | [diff] [blame] | 72 | int lc; |
Cyril Hrubis | 0b9589f | 2014-05-27 17:40:33 +0200 | [diff] [blame] | 73 | const char *msg; |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 74 | |
| 75 | strcpy(name, DATA_FILE); |
| 76 | sprintf(fname, "%s.%d", name, getpid()); |
| 77 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 78 | /* |
| 79 | * parse standard options |
| 80 | */ |
Garrett Cooper | 45e285d | 2010-11-22 12:19:25 -0800 | [diff] [blame] | 81 | if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 82 | tst_resm(TBROK, "OPTION PARSING ERROR - %s", msg); |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 83 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 84 | } |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 85 | tst_tmpdir(); |
| 86 | for (lc = 0; TEST_LOOPING(lc); lc++) { |
| 87 | |
| 88 | init_buffers(wbuf); |
| 89 | local_flag = PASSED; |
| 90 | |
| 91 | if ((fd = open(fname, O_RDWR | O_CREAT, 0666)) < 0) { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 92 | tst_resm(TBROK, "open failed: fname = %s, errno = %d", |
| 93 | fname, errno); |
| 94 | cleanup(); |
| 95 | } |
| 96 | /* |
| 97 | * pwrite() K1 of data (0's) at offset 0. |
| 98 | */ |
| 99 | if ((nbytes = pwrite(fd, wbuf[0], K1, 0)) != K1) { |
| 100 | tst_resm(TFAIL, |
| 101 | "pwrite at 0 failed: nbytes=%d, errno=%d", |
| 102 | nbytes, errno); |
| 103 | cleanup(); |
| 104 | } |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 105 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 106 | /* |
| 107 | * We should still be at offset 0. |
| 108 | */ |
| 109 | l_seek(fd, 0, SEEK_CUR, 0); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 110 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 111 | /* |
| 112 | * lseek() to a non K boundary, just to be different. |
| 113 | */ |
| 114 | l_seek(fd, K1 / 2, SEEK_SET, K1 / 2); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 115 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 116 | /* |
| 117 | * pwrite() K1 of data (2's) at offset K2. |
| 118 | */ |
| 119 | if ((nbytes = pwrite(fd, wbuf[2], K1, K2)) != K1) { |
| 120 | tst_resm(TFAIL, |
| 121 | "pwrite at K2 failed: nbytes=%d, errno=%d", |
| 122 | nbytes, errno); |
| 123 | cleanup(); |
| 124 | } |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 125 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 126 | /* |
| 127 | * We should still be at our non K boundary. |
| 128 | */ |
| 129 | l_seek(fd, 0, SEEK_CUR, K1 / 2); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 130 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 131 | /* |
| 132 | * lseek() to an offset of K3. |
| 133 | */ |
| 134 | l_seek(fd, K3, SEEK_SET, K3); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 135 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 136 | /* |
| 137 | * This time use a normal write() of K1 of data (3's) which should |
| 138 | * take place at an offset of K3, moving the file pointer to K4. |
| 139 | */ |
| 140 | if ((nbytes = write(fd, wbuf[3], K1)) != K1) { |
| 141 | tst_resm(TFAIL, "write failed: nbytes=%d, errno=%d", |
| 142 | nbytes, errno); |
| 143 | cleanup(); |
| 144 | } |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 145 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 146 | /* |
| 147 | * We should be at offset K4. |
| 148 | */ |
| 149 | l_seek(fd, 0, SEEK_CUR, K4); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 150 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 151 | /* |
| 152 | * pwrite() K1 of data (1's) at offset K1. |
| 153 | */ |
| 154 | if ((nbytes = pwrite(fd, wbuf[1], K1, K1)) != K1) { |
| 155 | tst_resm(TFAIL, "pwrite failed: nbytes=%d, errno=%d", |
| 156 | nbytes, errno); |
| 157 | cleanup(); |
| 158 | } |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 159 | |
| 160 | /*--------------------------------------------------------------*/ |
| 161 | |
| 162 | /* |
| 163 | * Now test that O_APPEND takes precedence over any |
| 164 | * offset specified by pwrite(), but that the file |
| 165 | * pointer remains unchanged. First, close then reopen |
| 166 | * the file and ensure it is already K4 in length and |
| 167 | * set the file pointer to it's midpoint, K2. |
| 168 | */ |
| 169 | close(fd); |
| 170 | if ((fd = open(fname, O_RDWR | O_APPEND, 0666)) < 0) { |
vapier | cff4af0 | 2006-02-11 04:46:30 +0000 | [diff] [blame] | 171 | tst_resm(TBROK, "open failed: fname = %s, errno = %d", |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 172 | fname, errno); |
subrata_modak | 814e03c | 2008-11-11 06:44:51 +0000 | [diff] [blame] | 173 | cleanup(); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 174 | } |
| 175 | if (fstat(fd, &statbuf) == -1) { |
vapier | cff4af0 | 2006-02-11 04:46:30 +0000 | [diff] [blame] | 176 | tst_resm(TFAIL, "fstat failed: errno = %d", errno); |
subrata_modak | 814e03c | 2008-11-11 06:44:51 +0000 | [diff] [blame] | 177 | cleanup(); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 178 | } |
| 179 | if (statbuf.st_size != K4) { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 180 | tst_resm(TFAIL, "file size is %ld != K4", |
| 181 | statbuf.st_size); |
subrata_modak | 814e03c | 2008-11-11 06:44:51 +0000 | [diff] [blame] | 182 | cleanup(); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 183 | } |
| 184 | l_seek(fd, K2, SEEK_SET, K2); |
| 185 | |
| 186 | /* |
| 187 | * Finally, pwrite() some K1 of data at offset 0. |
| 188 | * What we should end up with is: |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 189 | * -The file pointer should still be at K2. |
| 190 | * -The data should have been written to the end |
| 191 | * of the file (O_APPEND) and should be K5 in size. |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 192 | */ |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 193 | if ((nbytes = pwrite(fd, wbuf[0], K1, 0)) != K1) { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 194 | tst_resm(TFAIL, |
| 195 | "pwrite at 0 failed: nbytes=%d, errno=%d", |
| 196 | nbytes, errno); |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 197 | |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 198 | } |
| 199 | l_seek(fd, 0, SEEK_CUR, K2); |
| 200 | if (fstat(fd, &statbuf) == -1) { |
vapier | cff4af0 | 2006-02-11 04:46:30 +0000 | [diff] [blame] | 201 | tst_resm(TFAIL, "fstat failed: errno = %d", errno); |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 202 | |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 203 | } |
| 204 | if (statbuf.st_size != K5) { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 205 | tst_resm(TFAIL, "file size is %ld != K4", |
| 206 | statbuf.st_size); |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 207 | |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 208 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 209 | tst_resm(TPASS, "O_APPEND test passed."); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 210 | |
| 211 | /*------------------------------------------------------------------------*/ |
| 212 | |
| 213 | close(fd); |
| 214 | unlink(fname); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 215 | } /* end for */ |
subrata_modak | 814e03c | 2008-11-11 06:44:51 +0000 | [diff] [blame] | 216 | cleanup(); |
Garrett Cooper | 1e6f5a6 | 2010-12-19 09:58:10 -0800 | [diff] [blame] | 217 | tst_exit(); |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 218 | |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 219 | } |
| 220 | |
| 221 | /*------------------------------------------------------------------------*/ |
| 222 | |
| 223 | /* |
| 224 | * init_buffers() allocates wbuf[] array |
| 225 | * as follows: |
| 226 | * wbuf[0] has 0's, wbuf[1] has 1's, wbuf[2] has 2's, and wbuf[3] has 3's. |
| 227 | */ |
| 228 | void init_buffers(char *wbuf[]) |
| 229 | { |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 230 | int i; |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 231 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 232 | for (i = 0; i < NBUFS; i++) { |
Cyril Hrubis | d218f34 | 2014-09-23 13:14:56 +0200 | [diff] [blame] | 233 | wbuf[i] = malloc(K1); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 234 | if (wbuf[i] == NULL) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 235 | tst_brkm(TBROK, NULL, "ib: malloc failed: errno=%d", |
| 236 | errno); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 237 | } |
| 238 | memset(wbuf[i], i, K1); |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | /* |
| 243 | * l_seek() is a local front end to lseek(). |
| 244 | * "checkoff" is the offset at which we believe we should be at. |
| 245 | * Used to validate pwrite doesn't move the offset. |
| 246 | */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 247 | void l_seek(int fdesc, off_t offset, int whence, off_t checkoff) |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 248 | { |
| 249 | off_t offloc; |
| 250 | |
| 251 | if ((offloc = lseek(fdesc, offset, whence)) != checkoff) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 252 | tst_brkm(TFAIL, NULL, |
| 253 | "(%ld = lseek(%d, %ld, %d)) != %ld) errno = %d", |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 254 | offloc, fdesc, offset, whence, checkoff, errno); |
robbiew | 3c65815 | 2003-01-07 21:50:34 +0000 | [diff] [blame] | 255 | } |
| 256 | } |
| 257 | |
subrata_modak | 814e03c | 2008-11-11 06:44:51 +0000 | [diff] [blame] | 258 | /* |
| 259 | * cleanup() - Performs all ONE TIME cleanup for this test at |
| 260 | * completion or premature exit. |
| 261 | * |
| 262 | * Print test timing stats and errno log if test executed with options. |
| 263 | * Close the testfile if still opened. |
| 264 | * Remove temporary directory and sub-directories/files under it |
| 265 | * created during setup(). |
| 266 | * Exit the test program with normal exit code. |
| 267 | */ |
Mike Frysinger | c57fba5 | 2014-04-09 18:56:30 -0400 | [diff] [blame] | 268 | void cleanup(void) |
subrata_modak | 814e03c | 2008-11-11 06:44:51 +0000 | [diff] [blame] | 269 | { |
subrata_modak | 814e03c | 2008-11-11 06:44:51 +0000 | [diff] [blame] | 270 | |
subrata_modak | 814e03c | 2008-11-11 06:44:51 +0000 | [diff] [blame] | 271 | tst_rmdir(); |
| 272 | |
Chris Dearman | ec6edca | 2012-10-17 19:54:01 -0700 | [diff] [blame] | 273 | } |