1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1990, 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
34#include <err.h>
35#include <stdio.h>
36#include <stdlib.h>
37#include <string.h>
38#include <unistd.h>
39
40#include "hexdump.h"
41
42off_t skip;				/* bytes to skip */
43
44void
45newsyntax(int argc, char ***argvp)
46{
47	int ch;
48	char *p, **argv;
49
50	argv = *argvp;
51	if ((p = strrchr(argv[0], 'h')) != NULL &&
52	    strcmp(p, "hd") == 0) {
53		/* "Canonical" format, implies -C. */
54		add("\"%08.8_Ax\n\"");
55		add("\"%08.8_ax  \" 8/1 \"%02x \" \"  \" 8/1 \"%02x \" ");
56		add("\"  |\" 16/1 \"%_p\" \"|\\n\"");
57	}
58	while ((ch = getopt(argc, argv, "bcCde:f:n:os:vx")) != -1)
59		switch (ch) {
60		case 'b':
61			add("\"%07.7_Ax\n\"");
62			add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"");
63			break;
64		case 'c':
65			add("\"%07.7_Ax\n\"");
66			add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"");
67			break;
68		case 'C':
69			add("\"%08.8_Ax\n\"");
70			add("\"%08.8_ax  \" 8/1 \"%02x \" \"  \" 8/1 \"%02x \" ");
71			add("\"  |\" 16/1 \"%_p\" \"|\\n\"");
72			break;
73		case 'd':
74			add("\"%07.7_Ax\n\"");
75			add("\"%07.7_ax \" 8/2 \"  %05u \" \"\\n\"");
76			break;
77		case 'e':
78			add(optarg);
79			break;
80		case 'f':
81			addfile(optarg);
82			break;
83		case 'n':
84			if ((length = atoi(optarg)) < 0)
85				errx(1, "%s: bad length value", optarg);
86			break;
87		case 'o':
88			add("\"%07.7_Ax\n\"");
89			add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
90			break;
91		case 's':
92			if ((skip = strtoll(optarg, &p, 0)) < 0)
93				errx(1, "%s: bad skip value", optarg);
94			switch(*p) {
95			case 'b':
96				skip *= 512;
97				break;
98			case 'k':
99				skip *= 1024;
100				break;
101			case 'm':
102				skip *= 1048576;
103				break;
104			}
105			break;
106		case 'v':
107			vflag = ALL;
108			break;
109		case 'x':
110			add("\"%07.7_Ax\n\"");
111			add("\"%07.7_ax \" 8/2 \"   %04x \" \"\\n\"");
112			break;
113		case '?':
114			usage();
115		}
116
117	if (!fshead) {
118		add("\"%07.7_Ax\n\"");
119		add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
120	}
121
122	*argvp += optind;
123}
124
125void
126usage(void)
127{
128	(void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
129"usage: hexdump [-bcCdovx] [-e fmt] [-f fmt_file] [-n length]",
130"               [-s skip] [file ...]",
131"       hd      [-bcdovx]  [-e fmt] [-f fmt_file] [-n length]",
132"               [-s skip] [file ...]");
133	exit(1);
134}
135