hexdump.c revision 50477 
1/*
2 * Copyright (c) 1989, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35static const char copyright[] =
36"@(#) Copyright (c) 1989, 1993\n\
37	The Regents of the University of California.  All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41#if 0
42static char sccsid[] = "@(#)hexdump.c	8.1 (Berkeley) 6/6/93";
43#endif
44static const char rcsid[] =
45  "$FreeBSD: head/usr.bin/hexdump/hexdump.c 50477 1999-08-28 01:08:13Z peter $";
46#endif /* not lint */
47
48#include <sys/types.h>
49#include <locale.h>
50#include <stdlib.h>
51#include <stdio.h>
52#include <string.h>
53#include "hexdump.h"
54
55FS *fshead;				/* head of format strings */
56int blocksize;				/* data block size */
57int exitval;				/* final exit value */
58int length = -1;			/* max bytes to read */
59
60int
61main(argc, argv)
62	int argc;
63	char *argv[];
64{
65	register FS *tfs;
66	char *p;
67
68	(void)setlocale(LC_CTYPE, "");
69
70	if (!(p = rindex(argv[0], 'o')) || strcmp(p, "od"))
71		newsyntax(argc, &argv);
72	else
73		oldsyntax(argc, &argv);
74
75	/* figure out the data block size */
76	for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) {
77		tfs->bcnt = size(tfs);
78		if (blocksize < tfs->bcnt)
79			blocksize = tfs->bcnt;
80	}
81	/* rewrite the rules, do syntax checking */
82	for (tfs = fshead; tfs; tfs = tfs->nextfs)
83		rewrite(tfs);
84
85	(void)next(argv);
86	display();
87	exit(exitval);
88}
89