/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #include "../file_common.h" static unsigned char bigbuffer[BIGBUFFERSIZE]; /* * Given a filename, check that the file consists entirely * of a particular pattern. If the pattern is not specified a * default will be used. For default values see file_common.h */ int main(int argc, char **argv) { int bigfd; long i, n; unsigned char fillchar = DATA; int bigbuffersize = BIGBUFFERSIZE; int64_t read_count = 0; /* * Validate arguments */ if (argc < 2) { (void) printf("Usage: %s filename [pattern]\n", argv[0]); exit(1); } if (argv[2]) { fillchar = atoi(argv[2]); } /* * Read the file contents and check every character * against the supplied pattern. Abort if the * pattern check fails. */ if ((bigfd = open(argv[1], O_RDONLY)) == -1) { (void) printf("open %s failed %d\n", argv[1], errno); exit(1); } do { if ((n = read(bigfd, &bigbuffer, bigbuffersize)) == -1) { (void) printf("read failed (%ld), %d\n", n, errno); exit(errno); } for (i = 0; i < n; i++) { if (bigbuffer[i] != fillchar) { (void) printf("error %s: 0x%x != 0x%x)\n", argv[1], bigbuffer[i], fillchar); exit(1); } } read_count += n; } while (n == bigbuffersize); return (0); } |