/*
* 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;
uchar_t 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);
}