1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1989, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#ifndef lint
33static const char copyright[] =
34"@(#) Copyright (c) 1989, 1993\n\
35	The Regents of the University of California.  All rights reserved.\n";
36#endif /* not lint */
37
38#ifndef lint
39#if 0
40static char sccsid[] = "@(#)hexdump.c	8.1 (Berkeley) 6/6/93";
41#endif
42#endif /* not lint */
43#include <sys/cdefs.h>
44__FBSDID("$FreeBSD$");
45
46#include <sys/types.h>
47#include <sys/capsicum.h>
48#include <capsicum_helpers.h>
49#include <err.h>
50#include <locale.h>
51#include <stdlib.h>
52#include <stdio.h>
53#include <string.h>
54#include "hexdump.h"
55
56FS *fshead;				/* head of format strings */
57int blocksize;				/* data block size */
58int exitval;				/* final exit value */
59int length = -1;			/* max bytes to read */
60
61int
62main(int argc, char *argv[])
63{
64	FS *tfs;
65	char *p;
66
67	(void)setlocale(LC_ALL, "");
68
69	if (!(p = strrchr(argv[0], 'o')) || strcmp(p, "od"))
70		newsyntax(argc, &argv);
71	else
72		oldsyntax(argc, &argv);
73
74	/* figure out the data block size */
75	for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) {
76		tfs->bcnt = size(tfs);
77		if (blocksize < tfs->bcnt)
78			blocksize = tfs->bcnt;
79	}
80	/* rewrite the rules, do syntax checking */
81	for (tfs = fshead; tfs; tfs = tfs->nextfs)
82		rewrite(tfs);
83
84	/*
85	 * Cache NLS data, for strerror, for err(3), before entering capability
86	 * mode.
87	 */
88	caph_cache_catpages();
89	if (caph_limit_stdio() < 0)
90		err(1, "capsicum");
91
92	(void)next(argv);
93	display();
94	exit(exitval);
95}
96