1 /* $NetBSD: debug.c,v 1.5 2012/01/30 22:49:03 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2010 Emmanuel Dreyfus. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
19 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 */
27 #include <stdio.h>
28 #include <errno.h>
29 #include <string.h>
30 #include <syslog.h>
31 #include <ctype.h>
32 #include <sys/socket.h>
33
34 #include "perfused.h"
35
36 #ifdef PERFUSE_DEBUG
37 void
perfused_hexdump(const char * addr,size_t len)38 perfused_hexdump(const char *addr, size_t len)
39 {
40 unsigned int i, j, k;
41
42 for (i = 0; i < len; i += 16) {
43 DPRINTF("%p ", &addr[i]);
44 for (j = 0; j < 16; j += 4) {
45 for (k = 0; k < 4; k++) {
46 if (i + j + k < len) {
47 DPRINTF("%02x ",
48 *(addr + i + j + k) & 0xff);
49 } else {
50 DPRINTF(" ");
51 }
52 }
53 }
54
55 DPRINTF(" ");
56 for (j = 0; j < 16; j++) {
57 char c;
58
59 if (i + j < len) {
60 c = *(addr + i + j);
61 DPRINTF("%c", isprint((int)c) ? c : '.');
62 } else {
63 DPRINTF(" ");
64 }
65 }
66 DPRINTF("\n");
67 }
68
69 return;
70 }
71
72
73
74 #endif /* PERFUSE_DEBUG */
75