hexsyntax.c revision 82766 
1/*-
2 * Copyright (c) 1990, 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
35#if 0
36static char sccsid[] = "@(#)hexsyntax.c	8.2 (Berkeley) 5/4/95";
37#endif
38static const char rcsid[] =
39  "$FreeBSD: head/usr.bin/hexdump/hexsyntax.c 82766 2001-09-01 22:42:47Z ache $";
40#endif /* not lint */
41
42#include <sys/types.h>
43
44#include <err.h>
45#include <stdio.h>
46#include <stdlib.h>
47#include <string.h>
48#include <unistd.h>
49
50#include "hexdump.h"
51
52off_t skip;				/* bytes to skip */
53
54void
55newsyntax(argc, argvp)
56	int argc;
57	char ***argvp;
58{
59	extern enum _vflag vflag;
60	extern FS *fshead;
61	extern int length;
62	int ch;
63	char *p, **argv;
64
65	argv = *argvp;
66	if ((p = rindex(argv[0], 'h')) != NULL &&
67	    strcmp(p, "hd") == 0) {
68		/* "Canonical" format, implies -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	}
73	while ((ch = getopt(argc, argv, "bcCde:f:n:os:vx")) != -1)
74		switch (ch) {
75		case 'b':
76			add("\"%07.7_Ax\n\"");
77			add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"");
78			break;
79		case 'c':
80			add("\"%07.7_Ax\n\"");
81			add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"");
82			break;
83		case 'C':
84			add("\"%08.8_Ax\n\"");
85			add("\"%08.8_ax  \" 8/1 \"%02x \" \"  \" 8/1 \"%02x \" ");
86			add("\"  |\" 16/1 \"%_p\" \"|\\n\"");
87			break;
88		case 'd':
89			add("\"%07.7_Ax\n\"");
90			add("\"%07.7_ax \" 8/2 \"  %05u \" \"\\n\"");
91			break;
92		case 'e':
93			add(optarg);
94			break;
95		case 'f':
96			addfile(optarg);
97			break;
98		case 'n':
99			if ((length = atoi(optarg)) < 0)
100				errx(1, "%s: bad length value", optarg);
101			break;
102		case 'o':
103			add("\"%07.7_Ax\n\"");
104			add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
105			break;
106		case 's':
107			if ((skip = strtoll(optarg, &p, 0)) < 0)
108				errx(1, "%s: bad skip value", optarg);
109			switch(*p) {
110			case 'b':
111				skip *= 512;
112				break;
113			case 'k':
114				skip *= 1024;
115				break;
116			case 'm':
117				skip *= 1048576;
118				break;
119			}
120			break;
121		case 'v':
122			vflag = ALL;
123			break;
124		case 'x':
125			add("\"%07.7_Ax\n\"");
126			add("\"%07.7_ax \" 8/2 \"   %04x \" \"\\n\"");
127			break;
128		case '?':
129			usage();
130		}
131
132	if (!fshead) {
133		add("\"%07.7_Ax\n\"");
134		add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
135	}
136
137	*argvp += optind;
138}
139
140void
141usage()
142{
143	(void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
144"usage: hexdump [-bcCdovx] [-e fmt] [-f fmt_file] [-n length]",
145"               [-s skip] [file ...]",
146"       hd      [-bcdovx]  [-e fmt] [-f fmt_file] [-n length]",
147"               [-s skip] [file ...]");
148	exit(1);
149}
150