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. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)hexsyntax.c 8.2 (Berkeley) 5/4/95
30 * $FreeBSD: src/usr.bin/hexdump/hexsyntax.c,v 1.8.2.1 2002/07/23 14:27:06 tjr Exp $
31 * $DragonFly: src/usr.bin/hexdump/hexsyntax.c,v 1.4 2004/08/30 18:06:49 eirikn Exp $
32 */
33
34 #include <sys/types.h>
35
36 #include <err.h>
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <string.h>
40 #include <unistd.h>
41
42 #include "hexdump.h"
43
44 off_t skip; /* bytes to skip */
45
46 void
newsyntax(int argc,char *** argvp)47 newsyntax(int argc, char ***argvp)
48 {
49 int ch;
50 char *p, **argv;
51
52 argv = *argvp;
53 if ((p = strrchr(argv[0], 'h')) != NULL &&
54 strcmp(p, "hd") == 0) {
55 /* "Canonical" format, implies -C. */
56 add("\"%08.8_Ax\n\"");
57 add("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" ");
58 add("\" |\" 16/1 \"%_p\" \"|\\n\"");
59 }
60 while ((ch = getopt(argc, argv, "bcCde:f:n:os:vx")) != -1)
61 switch (ch) {
62 case 'b':
63 add("\"%07.7_Ax\n\"");
64 add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"");
65 break;
66 case 'c':
67 add("\"%07.7_Ax\n\"");
68 add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"");
69 break;
70 case 'C':
71 add("\"%08.8_Ax\n\"");
72 add("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" ");
73 add("\" |\" 16/1 \"%_p\" \"|\\n\"");
74 break;
75 case 'd':
76 add("\"%07.7_Ax\n\"");
77 add("\"%07.7_ax \" 8/2 \" %05u \" \"\\n\"");
78 break;
79 case 'e':
80 add(optarg);
81 break;
82 case 'f':
83 addfile(optarg);
84 break;
85 case 'n':
86 if ((length = atoi(optarg)) < 0)
87 errx(1, "%s: bad length value", optarg);
88 break;
89 case 'o':
90 add("\"%07.7_Ax\n\"");
91 add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
92 break;
93 case 's':
94 if ((skip = strtoll(optarg, &p, 0)) < 0)
95 errx(1, "%s: bad skip value", optarg);
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 }
118
119 if (!fshead) {
120 add("\"%07.7_Ax\n\"");
121 add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
122 }
123
124 *argvp += optind;
125 }
126
127 void
usage(void)128 usage(void)
129 {
130 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
131 "usage: hexdump [-bcCdovx] [-e fmt] [-f fmt_file] [-n length]",
132 " [-s skip] [file ...]",
133 " hd [-bcdovx] [-e fmt] [-f fmt_file] [-n length]",
134 " [-s skip] [file ...]");
135 exit(1);
136 }
137