1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/* libanode: the Anode C reference implementation
* Copyright (C) 2009-2010 Adam Ierymenko <adam.ierymenko@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "impl/aes.h"
#include "impl/ec.h"
#include "impl/misc.h"
#include "impl/types.h"
#include "anode.h"
int AnodeAddress_calc_short_id(
const AnodeAddress *address,
AnodeAddressId *short_address_id)
{
unsigned char digest[16];
switch(AnodeAddress_get_type(address)) {
case ANODE_ADDRESS_ANODE_256_40:
Anode_aes_digest(address->bits,ANODE_ADDRESS_LENGTH_ANODE_256_40,digest);
break;
default:
return ANODE_ERR_ADDRESS_INVALID;
}
*((uint64_t *)short_address_id->bits) = ((uint64_t *)digest)[0] ^ ((uint64_t *)digest)[1];
return 0;
}
int AnodeAddress_get_zone(const AnodeAddress *address,AnodeZone *zone)
{
switch(AnodeAddress_get_type(address)) {
case ANODE_ADDRESS_ANODE_256_40:
*((uint32_t *)&(zone->bits[0])) = *((uint32_t *)&(address->bits[1]));
return 0;
}
return ANODE_ERR_ADDRESS_INVALID;
}
int AnodeAddress_to_string(const AnodeAddress *address,char *buf,int len)
{
const unsigned char *inptr;
char *outptr;
unsigned int i;
switch(AnodeAddress_get_type(address)) {
case ANODE_ADDRESS_ANODE_256_40:
if (len < (((ANODE_ADDRESS_LENGTH_ANODE_256_40 / 5) * 8) + 1))
return ANODE_ERR_BUFFER_TOO_SMALL;
inptr = (const unsigned char *)address->bits;
outptr = buf;
for(i=0;i<(ANODE_ADDRESS_LENGTH_ANODE_256_40 / 5);++i) {
Anode_base32_5_to_8(inptr,outptr);
inptr += 5;
outptr += 8;
}
*outptr = (char)0;
return ((ANODE_ADDRESS_LENGTH_ANODE_256_40 / 5) * 8);
}
return ANODE_ERR_ADDRESS_INVALID;
}
int AnodeAddress_from_string(const char *str,AnodeAddress *address)
{
const char *blk_start = str;
const char *ptr = str;
unsigned int address_len = 0;
while (*ptr) {
if ((unsigned long)(ptr - blk_start) == 8) {
if ((address_len + 5) > sizeof(address->bits))
return ANODE_ERR_ADDRESS_INVALID;
Anode_base32_8_to_5(blk_start,(unsigned char *)&(address->bits[address_len]));
address_len += 5;
blk_start = ptr;
}
++ptr;
}
if (ptr != blk_start)
return ANODE_ERR_ADDRESS_INVALID;
if (AnodeAddress_get_type(address) != ANODE_ADDRESS_ANODE_256_40)
return ANODE_ERR_ADDRESS_INVALID;
return 0;
}
|
