1 /*
2 * Copyright (c) 1989, 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 * @(#)conv.c 8.1 (Berkeley) 6/6/93
30 * $FreeBSD: src/usr.bin/hexdump/conv.c,v 1.1.1.1.14.1 2002/07/23 14:27:06 tjr Exp $
31 * $DragonFly: src/usr.bin/hexdump/conv.c,v 1.3 2003/10/04 20:36:45 hmp Exp $
32 */
33
34 #include <sys/types.h>
35
36 #include <stdio.h>
37 #include <ctype.h>
38 #include "hexdump.h"
39
40 void
conv_c(PR * pr,u_char * p)41 conv_c(PR *pr, u_char *p)
42 {
43 char buf[10];
44 char const *str;
45
46 switch(*p) {
47 case '\0':
48 str = "\\0";
49 goto strpr;
50 /* case '\a': */
51 case '\007':
52 str = "\\a";
53 goto strpr;
54 case '\b':
55 str = "\\b";
56 goto strpr;
57 case '\f':
58 str = "\\f";
59 goto strpr;
60 case '\n':
61 str = "\\n";
62 goto strpr;
63 case '\r':
64 str = "\\r";
65 goto strpr;
66 case '\t':
67 str = "\\t";
68 goto strpr;
69 case '\v':
70 str = "\\v";
71 goto strpr;
72 default:
73 break;
74 }
75 if (isprint(*p)) {
76 *pr->cchar = 'c';
77 (void)printf(pr->fmt, *p);
78 } else {
79 (void)sprintf(buf, "%03o", (int)*p);
80 str = buf;
81 strpr: *pr->cchar = 's';
82 (void)printf(pr->fmt, str);
83 }
84 }
85
86 void
conv_u(PR * pr,u_char * p)87 conv_u(PR *pr, u_char *p)
88 {
89 static char const * list[] = {
90 "nul", "soh", "stx", "etx", "eot", "enq", "ack", "bel",
91 "bs", "ht", "lf", "vt", "ff", "cr", "so", "si",
92 "dle", "dcl", "dc2", "dc3", "dc4", "nak", "syn", "etb",
93 "can", "em", "sub", "esc", "fs", "gs", "rs", "us",
94 };
95
96 /* od used nl, not lf */
97 if (*p <= 0x1f) {
98 *pr->cchar = 's';
99 if (odmode && *p == 0x0a)
100 (void)printf(pr->fmt, "nl");
101 else
102 (void)printf(pr->fmt, list[*p]);
103 } else if (*p == 0x7f) {
104 *pr->cchar = 's';
105 (void)printf(pr->fmt, "del");
106 } else if (odmode && *p == 0x20) { /* od replaced space with sp */
107 *pr->cchar = 's';
108 (void)printf(pr->fmt, " sp");
109 } else if (isprint(*p)) {
110 *pr->cchar = 'c';
111 (void)printf(pr->fmt, *p);
112 } else {
113 *pr->cchar = 'x';
114 (void)printf(pr->fmt, (int)*p);
115 }
116 }
117