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