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/* $OpenBSD: hexdump.c,v 1.20 2016/02/08 21:05:51 mmcc Exp $ */
/* $NetBSD: hexdump.c,v 1.7 1997/10/19 02:34:06 lukem Exp $ */
/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "hexdump.h"
#define MINIMUM(a, b) (((a) < (b)) ? (a) : (b))
FS *fshead; /* head of format strings */
int blocksize; /* data block size */
int exitval; /* final exit value */
long length = -1; /* max bytes to read */
char *iobuf; /* stdio I/O buffer */
size_t iobufsiz; /* size of stdio I/O buffer */
int
main(int argc, char *argv[])
{
FS *tfs;
char *p;
if (pledge("stdio rpath", NULL) == -1)
err(1, "pledge");
if (!(p = strrchr(argv[0], 'o')) || strcmp(p, "od"))
newsyntax(argc, &argv);
else
oldsyntax(argc, &argv);
/* figure out the data block size */
for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) {
tfs->bcnt = size(tfs);
if (blocksize < tfs->bcnt)
blocksize = tfs->bcnt;
}
if (length != -1) {
iobufsiz = MINIMUM(length, blocksize);
if ((iobuf = malloc(iobufsiz)) == NULL)
err(1, NULL);
}
/* rewrite the rules, do syntax checking */
for (tfs = fshead; tfs; tfs = tfs->nextfs)
rewrite(tfs);
(void)next(argv);
display();
exit(exitval);
}
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