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 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