hexsyntax.c revision 99112 
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
38#endif /* not lint */
39#include <sys/cdefs.h>
40__FBSDID("$FreeBSD: head/usr.bin/hexdump/hexsyntax.c 99112 2002-06-30 05:25:07Z obrien $");
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	int ch;
60	char *p, **argv;
61
62	argv = *argvp;
63	if ((p = rindex(argv[0], 'h')) != NULL &&
64	    strcmp(p, "hd") == 0) {
65		/* "Canonical" format, implies -C. */
66		add("\"%08.8_Ax\n\"");
67		add("\"%08.8_ax  \" 8/1 \"%02x \" \"  \" 8/1 \"%02x \" ");
68		add("\"  |\" 16/1 \"%_p\" \"|\\n\"");
69	}
70	while ((ch = getopt(argc, argv, "bcCde:f:n:os:vx")) != -1)
71		switch (ch) {
72		case 'b':
73			add("\"%07.7_Ax\n\"");
74			add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"");
75			break;
76		case 'c':
77			add("\"%07.7_Ax\n\"");
78			add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"");
79			break;
80		case 'C':
81			add("\"%08.8_Ax\n\"");
82			add("\"%08.8_ax  \" 8/1 \"%02x \" \"  \" 8/1 \"%02x \" ");
83			add("\"  |\" 16/1 \"%_p\" \"|\\n\"");
84			break;
85		case 'd':
86			add("\"%07.7_Ax\n\"");
87			add("\"%07.7_ax \" 8/2 \"  %05u \" \"\\n\"");
88			break;
89		case 'e':
90			add(optarg);
91			break;
92		case 'f':
93			addfile(optarg);
94			break;
95		case 'n':
96			if ((length = atoi(optarg)) < 0)
97				errx(1, "%s: bad length value", optarg);
98			break;
99		case 'o':
100			add("\"%07.7_Ax\n\"");
101			add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
102			break;
103		case 's':
104			if ((skip = strtoll(optarg, &p, 0)) < 0)
105				errx(1, "%s: bad skip value", optarg);
106			switch(*p) {
107			case 'b':
108				skip *= 512;
109				break;
110			case 'k':
111				skip *= 1024;
112				break;
113			case 'm':
114				skip *= 1048576;
115				break;
116			}
117			break;
118		case 'v':
119			vflag = ALL;
120			break;
121		case 'x':
122			add("\"%07.7_Ax\n\"");
123			add("\"%07.7_ax \" 8/2 \"   %04x \" \"\\n\"");
124			break;
125		case '?':
126			usage();
127		}
128
129	if (!fshead) {
130		add("\"%07.7_Ax\n\"");
131		add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
132	}
133
134	*argvp += optind;
135}
136
137void
138usage()
139{
140	(void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
141"usage: hexdump [-bcCdovx] [-e fmt] [-f fmt_file] [-n length]",
142"               [-s skip] [file ...]",
143"       hd      [-bcdovx]  [-e fmt] [-f fmt_file] [-n length]",
144"               [-s skip] [file ...]");
145	exit(1);
146}
147