1 /***
2 This file is part of avahi.
3
4 avahi is free software; you can redistribute it and/or modify it
5 under the terms of the GNU Lesser General Public License as
6 published by the Free Software Foundation; either version 2.1 of the
7 License, or (at your option) any later version.
8
9 avahi is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
12 Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with avahi; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
17 USA.
18 ***/
19
20 #ifdef HAVE_CONFIG_H
21 #include <config.h>
22 #endif
23
24 #include <string.h>
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <assert.h>
28 #include <ctype.h>
29
30 #include "avahi-common/avahi-malloc.h"
31 #include "util.h"
32
avahi_hexdump(const void * p,size_t size)33 void avahi_hexdump(const void* p, size_t size) {
34 const uint8_t *c = p;
35 assert(p);
36
37 printf("Dumping %lu bytes from %p:\n", (unsigned long) size, p);
38
39 while (size > 0) {
40 unsigned i;
41
42 for (i = 0; i < 16; i++) {
43 if (i < size)
44 printf("%02x ", c[i]);
45 else
46 printf(" ");
47 }
48
49 for (i = 0; i < 16; i++) {
50 if (i < size)
51 printf("%c", c[i] >= 32 && c[i] < 127 ? c[i] : '.');
52 else
53 printf(" ");
54 }
55
56 printf("\n");
57
58 c += 16;
59
60 if (size <= 16)
61 break;
62
63 size -= 16;
64 }
65 }
66
avahi_format_mac_address(char * r,size_t l,const uint8_t * mac,size_t size)67 char *avahi_format_mac_address(char *r, size_t l, const uint8_t* mac, size_t size) {
68 char *t = r;
69 unsigned i;
70 static const char hex[] = "0123456789abcdef";
71
72 assert(r);
73 assert(l > 0);
74 assert(mac);
75
76 if (size <= 0) {
77 *r = 0;
78 return r;
79 }
80
81 for (i = 0; i < size; i++) {
82 if (l < 3)
83 break;
84
85 *(t++) = hex[*mac >> 4];
86 *(t++) = hex[*mac & 0xF];
87 *(t++) = ':';
88
89 l -= 3;
90
91 mac++;
92 }
93
94 if (t > r)
95 *(t-1) = 0;
96 else
97 *r = 0;
98
99 return r;
100 }
101
avahi_strup(char * s)102 char *avahi_strup(char *s) {
103 char *c;
104 assert(s);
105
106 for (c = s; *c; c++)
107 *c = (char) toupper(*c);
108
109 return s;
110 }
111
avahi_strdown(char * s)112 char *avahi_strdown(char *s) {
113 char *c;
114 assert(s);
115
116 for (c = s; *c; c++)
117 *c = (char) tolower(*c);
118
119 return s;
120 }
121