84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/*
|
|
* 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;
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
}
|
|
} while (n == bigbuffersize);
|
|
|
|
return (0);
|
|
}
|