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1 /*
2 * Copyright (c) 1989 The Regents of the University of California.
3 * 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 #include <stdio.h>
35 #include <ctype.h>
36 #include <sys/types.h>
37 #include "hexdump.h"
38 #include "xalloc.h"
39
40 void
41 conv_c(struct hexdump_pr *pr, u_char *p)
42 {
43 char *buf = NULL;
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 printf(pr->fmt, *p);
78 } else {
79 xasprintf(&buf, "%03o", *p);
80 str = buf;
81 strpr: *pr->cchar = 's';
82 printf(pr->fmt, str);
83 }
84 free(buf);
85 }
86
87 void
88 conv_u(struct hexdump_pr *pr, u_char *p)
89 {
90 static const char *list[] = {
91 "nul", "soh", "stx", "etx", "eot", "enq", "ack", "bel",
92 "bs", "ht", "lf", "vt", "ff", "cr", "so", "si",
93 "dle", "dcl", "dc2", "dc3", "dc4", "nak", "syn", "etb",
94 "can", "em", "sub", "esc", "fs", "gs", "rs", "us",
95 };
96
97 /* od used nl, not lf */
98 if (*p <= 0x1f) {
99 *pr->cchar = 's';
100 printf(pr->fmt, list[*p]);
101 } else if (*p == 0x7f) {
102 *pr->cchar = 's';
103 printf(pr->fmt, "del");
104 } else if (isprint(*p)) {
105 *pr->cchar = 'c';
106 printf(pr->fmt, *p);
107 } else {
108 *pr->cchar = 'x';
109 printf(pr->fmt, *p);
110 }
111 }