1 /* $OpenBSD: conv.c,v 1.10 2014/04/19 09:28:20 sobrado Exp $ */
2 /* $NetBSD: conv.c,v 1.7 2001/12/07 15:14:29 bjh21 Exp $ */
3
4 /*
5 * Copyright (c) 1989, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include <sys/types.h>
34
35 #include <stdio.h>
36 #include <ctype.h>
37
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 if (odmode) /* od didn't know about \a */
53 break;
54 str = "\\a";
55 goto strpr;
56 case '\b':
57 str = "\\b";
58 goto strpr;
59 case '\f':
60 str = "\\f";
61 goto strpr;
62 case '\n':
63 str = "\\n";
64 goto strpr;
65 case '\r':
66 str = "\\r";
67 goto strpr;
68 case '\t':
69 str = "\\t";
70 goto strpr;
71 case '\v':
72 if (odmode)
73 break;
74 str = "\\v";
75 goto strpr;
76 default:
77 break;
78 }
79 if (isprint(*p)) {
80 *pr->cchar = 'c';
81 (void)printf(pr->fmt, *p);
82 } else {
83 (void)snprintf(buf, sizeof buf, "%03o", (int)*p);
84 str = buf;
85 strpr: *pr->cchar = 's';
86 (void)printf(pr->fmt, str);
87 }
88 }
89
90 void
conv_u(PR * pr,u_char * p)91 conv_u(PR *pr, u_char *p)
92 {
93 static const char *list[] = {
94 "nul", "soh", "stx", "etx", "eot", "enq", "ack", "bel",
95 "bs", "ht", "lf", "vt", "ff", "cr", "so", "si",
96 "dle", "dc1", "dc2", "dc3", "dc4", "nak", "syn", "etb",
97 "can", "em", "sub", "esc", "fs", "gs", "rs", "us",
98 };
99
100 /* od used nl, not lf */
101 if (*p <= 0x1f) {
102 *pr->cchar = 's';
103 if (odmode && *p == 0x0a)
104 (void)printf(pr->fmt, "nl");
105 else
106 (void)printf(pr->fmt, list[*p]);
107 } else if (*p == 0x7f) {
108 *pr->cchar = 's';
109 (void)printf(pr->fmt, "del");
110 } else if (odmode && *p == 0x20) { /* od replaced space with sp */
111 *pr->cchar = 's';
112 (void)printf(pr->fmt, " sp");
113 } else if (isprint(*p)) {
114 *pr->cchar = 'c';
115 (void)printf(pr->fmt, *p);
116 } else {
117 *pr->cchar = 'x';
118 (void)printf(pr->fmt, (int)*p);
119 }
120 }
121