4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
28 * Copyright (c) 2012, 2014 by Delphix. All rights reserved.
37 #include <sys/types.h>
39 #include <sys/statvfs.h>
41 #include <sys/ioctl.h>
43 #include <sys/param.h>
48 #define FSIZE 256*1024*1024
51 /* Initialize Globals */
52 static long fsize = FSIZE;
53 static size_t bsize = BSIZE;
58 static int errflag = 0;
59 static off_t offset = 0;
60 static char *filename = NULL;
62 static void usage(char *execname);
63 static void parse_options(int argc, char *argv[]);
64 static void do_write(int fd);
65 static void do_trunc(int fd);
70 (void) fprintf(stderr,
71 "usage: %s [-b blocksize] [-c count] [-f filesize]"
72 " [-o offset] [-s seed] [-r] [-v] filename\n", execname);
77 main(int argc, char *argv[])
82 parse_options(argc, argv);
84 fd = open(filename, O_RDWR|O_CREAT|O_TRUNC, 0666);
90 for (i = 0; count == 0 || i < count; i++) {
100 parse_options(int argc, char *argv[])
105 extern int optind, optopt;
107 count = fsize / bsize;
109 while ((c = getopt(argc, argv, "b:c:f:o:rs:v")) != -1) {
112 bsize = atoi(optarg);
116 count = atoi(optarg);
120 fsize = atoi(optarg);
124 offset = atoi(optarg);
140 (void) fprintf(stderr,
141 "Option -%c requires an operand\n", optopt);
146 (void) fprintf(stderr,
147 "Unrecognized option: -%c\n", optopt);
153 (void) usage(argv[0]);
156 if (argc <= optind) {
157 (void) fprintf(stderr,
158 "No filename specified\n");
161 filename = argv[optind];
164 (void) fprintf(stderr, "Seed = %d\n", seed);
176 buf = (char *)calloc(1, bsize);
177 rbuf = (char *)calloc(1, bsize);
178 if (buf == NULL || rbuf == NULL) {
183 roffset = random() % fsize;
184 if (lseek64(fd, (offset + roffset), SEEK_SET) < 0) {
189 (void) strcpy(buf, "ZFS Test Suite Truncation Test");
190 if (write(fd, buf, bsize) < bsize) {
196 if (lseek64(fd, (offset + roffset), SEEK_SET) < 0) {
201 if (read(fd, rbuf, bsize) < bsize) {
206 if (memcmp(buf, rbuf, bsize) != 0) {
212 (void) fprintf(stderr,
213 "Wrote to offset %" PRId64 "\n", (offset + roffset));
215 (void) fprintf(stderr,
216 "Read back from offset %" PRId64 "\n",
230 roffset = random() % fsize;
231 if (ftruncate64(fd, (offset + roffset)) < 0) {
237 (void) fprintf(stderr, "Truncated at offset %" PRId64 "\n",