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#include <sys/types.h>
33#include <sys/capsicum.h>
34#include <capsicum_helpers.h>
35#include <err.h>
36#include <locale.h>
37#include <stdlib.h>
38#include <stdio.h>
39#include <string.h>
40#include "hexdump.h"
41
42FS *fshead;				/* head of format strings */
43int blocksize;				/* data block size */
44int exitval;				/* final exit value */
45int length = -1;			/* max bytes to read */
46
47int
48main(int argc, char *argv[])
49{
50	FS *tfs;
51	char *p;
52
53	(void)setlocale(LC_ALL, "");
54
55	if (!(p = strrchr(argv[0], 'o')) || strcmp(p, "od"))
56		newsyntax(argc, &argv);
57	else
58		oldsyntax(argc, &argv);
59
60	/* figure out the data block size */
61	for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) {
62		tfs->bcnt = size(tfs);
63		if (blocksize < tfs->bcnt)
64			blocksize = tfs->bcnt;
65	}
66	/* rewrite the rules, do syntax checking */
67	for (tfs = fshead; tfs; tfs = tfs->nextfs)
68		rewrite(tfs);
69
70	/*
71	 * Cache NLS data, for strerror, for err(3), before entering capability
72	 * mode.
73	 */
74	caph_cache_catpages();
75	if (caph_limit_stdio() < 0)
76		err(1, "capsicum");
77
78	(void)next(argv);
79	display();
80	exit(exitval);
81}
82