xref: /freebsd/usr.bin/hexdump/hexsyntax.c (revision 17ee9d00bc1ae1e598c38f25826f861e4bc6c3ce)
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 static char sccsid[] = "@(#)hexsyntax.c	8.1 (Berkeley) 6/6/93";
36 #endif /* not lint */
37 
38 #include <sys/types.h>
39 
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include "hexdump.h"
44 
45 off_t skip;				/* bytes to skip */
46 
47 void
48 newsyntax(argc, argvp)
49 	int argc;
50 	char ***argvp;
51 {
52 	extern enum _vflag vflag;
53 	extern FS *fshead;
54 	extern int length;
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 				err("%s: bad length value", optarg);
82 			break;
83 		case 'o':
84 			add("\"%07.7_Ax\n\"");
85 			add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
86 			break;
87 		case 's':
88 			if ((skip = strtol(optarg, &p, 0)) < 0)
89 				err("%s: bad skip value", optarg);
90 			switch(*p) {
91 			case 'b':
92 				skip *= 512;
93 				break;
94 			case 'k':
95 				skip *= 1024;
96 				break;
97 			case 'm':
98 				skip *= 1048576;
99 				break;
100 			}
101 			break;
102 		case 'v':
103 			vflag = ALL;
104 			break;
105 		case 'x':
106 			add("\"%07.7_Ax\n\"");
107 			add("\"%07.7_ax \" 8/2 \"   %04x \" \"\\n\"");
108 			break;
109 		case '?':
110 			usage();
111 		}
112 
113 	if (!fshead) {
114 		add("\"%07.7_Ax\n\"");
115 		add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
116 	}
117 
118 	*argvp += optind;
119 }
120 
121 void
122 usage()
123 {
124 	(void)fprintf(stderr,
125 "hexdump: [-bcdovx] [-e fmt] [-f fmt_file] [-n length] [-s skip] [file ...]\n");
126 	exit(1);
127 }
128