1 /*
2 * CDDL HEADER START
3 *
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.
7 *
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.
12 *
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]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include "../file_common.h"
28
29 static unsigned char bigbuffer[BIGBUFFERSIZE];
30
31 /*
32 * Given a filename, check that the file consists entirely
33 * of a particular pattern. If the pattern is not specified a
34 * default will be used. For default values see file_common.h
35 */
36 int
main(int argc,char ** argv)37 main(int argc, char **argv)
38 {
39 int bigfd;
40 long i, n;
41 uchar_t fillchar = DATA;
42 int bigbuffersize = BIGBUFFERSIZE;
43 int64_t read_count = 0;
44
45 /*
46 * Validate arguments
47 */
48 if (argc < 2) {
49 (void) printf("Usage: %s filename [pattern]\n",
50 argv[0]);
51 exit(1);
52 }
53
54 if (argv[2]) {
55 fillchar = atoi(argv[2]);
56 }
57
58 /*
59 * Read the file contents and check every character
60 * against the supplied pattern. Abort if the
61 * pattern check fails.
62 */
63 if ((bigfd = open(argv[1], O_RDONLY)) == -1) {
64 (void) printf("open %s failed %d\n", argv[1], errno);
65 exit(1);
66 }
67
68 do {
69 if ((n = read(bigfd, &bigbuffer, bigbuffersize)) == -1) {
70 (void) printf("read failed (%ld), %d\n", n, errno);
71 exit(errno);
72 }
73
74 for (i = 0; i < n; i++) {
75 if (bigbuffer[i] != fillchar) {
76 (void) printf("error %s: 0x%x != 0x%x)\n",
77 argv[1], bigbuffer[i], fillchar);
78 exit(1);
79 }
80 }
81
82 read_count += n;
83 } while (n == bigbuffersize);
84
85 return (0);
86 }
87