xref: /netbsd-src/usr.bin/hexdump/hexsyntax.c (revision d0fed6c87ddc40a8bffa6f99e7433ddfc864dd83)
1 /*	$NetBSD: hexsyntax.c,v 1.3 1997/01/09 20:19:56 tls Exp $	*/
2 
3 /*-
4  * Copyright (c) 1990 The Regents of the University of California.
5  * 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. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by the University of
18  *	California, Berkeley and its contributors.
19  * 4. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #ifndef lint
37 /*static char sccsid[] = "from: @(#)hexsyntax.c	5.2 (Berkeley) 5/8/90";*/
38 static char rcsid[] = "$NetBSD: hexsyntax.c,v 1.3 1997/01/09 20:19:56 tls Exp $";
39 #endif /* not lint */
40 
41 #include <sys/types.h>
42 #include <stdio.h>
43 #include "hexdump.h"
44 
45 off_t skip;				/* bytes to skip */
46 
47 newsyntax(argc, argvp)
48 	int argc;
49 	char ***argvp;
50 {
51 	extern enum _vflag vflag;
52 	extern FS *fshead;
53 	extern char *optarg;
54 	extern int length, optind;
55 	int ch;
56 	char *p, **argv;
57 
58 	argv = *argvp;
59 	while ((ch = getopt(argc, argv, "bcde:f:n:os:vx")) != EOF)
60 		switch (ch) {
61 		case 'b':
62 			add("\"%07.7_Ax\n\"");
63 			add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"");
64 			break;
65 		case 'c':
66 			add("\"%07.7_Ax\n\"");
67 			add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"");
68 			break;
69 		case 'd':
70 			add("\"%07.7_Ax\n\"");
71 			add("\"%07.7_ax \" 8/2 \"  %05u \" \"\\n\"");
72 			break;
73 		case 'e':
74 			add(optarg);
75 			break;
76 		case 'f':
77 			addfile(optarg);
78 			break;
79 		case 'n':
80 			if ((length = atoi(optarg)) < 0) {
81 				(void)fprintf(stderr,
82 				    "hexdump: bad length value.\n");
83 				exit(1);
84 			}
85 			break;
86 		case 'o':
87 			add("\"%07.7_Ax\n\"");
88 			add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
89 			break;
90 		case 's':
91 			if ((skip = strtol(optarg, &p, 0)) < 0) {
92 				(void)fprintf(stderr,
93 				    "hexdump: bad skip value.\n");
94 				exit(1);
95 			}
96 			switch(*p) {
97 			case 'b':
98 				skip *= 512;
99 				break;
100 			case 'k':
101 				skip *= 1024;
102 				break;
103 			case 'm':
104 				skip *= 1048576;
105 				break;
106 			}
107 			break;
108 		case 'v':
109 			vflag = ALL;
110 			break;
111 		case 'x':
112 			add("\"%07.7_Ax\n\"");
113 			add("\"%07.7_ax \" 8/2 \"   %04x \" \"\\n\"");
114 			break;
115 		case '?':
116 			usage();
117 			exit(1);
118 		}
119 
120 	if (!fshead) {
121 		add("\"%07.7_Ax\n\"");
122 		add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
123 	}
124 
125 	*argvp += optind;
126 }
127 
128 usage()
129 {
130 	(void)fprintf(stderr,
131 "hexdump: [-bcdovx] [-e fmt] [-f fmt_file] [-n length] [-s skip] [file ...]\n");
132 	exit(1);
133 }
134