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hexdump.c
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hexdump.c
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/*
* Copyright (C) 2000 Gene Kan. All rights reserved. genehkan@xcf.berkeley.edu
* Copyright (C) 2002 Litestream.org:
* Rick Bradley (rick@rickbradley.com),
* Sean Jewett (sean@rimboy.com),
* Brandon D. Valentine (brandon@dvalentine.com).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. The names Gene Kan, Litestream.org, Rick Bradley, Sean Jewett, or
* Brandon D. Valentine may not be used to endorse products derived
* from this software or portions of this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY GENE KAN, LITESTREAM.ORG, RICK BRADLEY,
* SEAN JEWETT, AND BRANDON D. VALENTINE ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROVIDERS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE OR
* PORTIONS OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* $Id: hexdump.c,v 1.4 2005/09/06 21:26:02 roundeye Exp $
*/
/* hexdump.c */
/* create a hex dump of a file */
/* Gene Kan, 03-10-96 */
/* 03-11-96 Version 0.1 works. */
#include <stdio.h>
#include <ctype.h>
#define WIDTH 16
#define BUFSIZE 1024
void hexdump (unsigned char *buffer, int length);
void hexdump (unsigned char *buffer, int length)
{
int count;
int bytesprinted;
for (count = 0; count < length; count += bytesprinted)
{
bytesprinted = 0;
while (((count + bytesprinted) < length) && (bytesprinted < WIDTH))
{
if (isprint (buffer[count + bytesprinted]))
putchar (buffer[count + bytesprinted]);
else
putchar ('.');
bytesprinted++;
}
while (bytesprinted < WIDTH)
{
putchar (' ');
bytesprinted++;
}
printf (" | ");
bytesprinted = 0;
while (((count + bytesprinted) < length) && (bytesprinted < WIDTH))
{
printf ("%02x ", buffer[count + bytesprinted]);
bytesprinted++;
}
putchar ('\n');
}
return;
}