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
|
/*
* Copyright (c) 2008-2010 Moxie Marlinspike
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include "Util.h"
#include <stdlib.h>
#include <stdio.h>
#include <string>
#include <sstream>
#include <iomanip>
#include <openssl/rand.h>
#include <boost/assert.hpp>
#undef DEBUG
void Util::int64ToArrayBigEndian(unsigned char *a, uint64_t i) {
a[0] = (i >> 56) & 0xFF;
a[1] = (i >> 48) & 0xFF;
a[2] = (i >> 40) & 0xFF;
a[3] = (i >> 32) & 0xFF;
a[4] = (i >> 24) & 0xFF;
a[5] = (i >> 16) & 0xFF;
a[6] = (i >> 8) & 0xFF;
a[7] = i & 0xFF;
}
void Util::int32ToArrayBigEndian(unsigned char *a, uint32_t i) {
a[0] = (i >> 24) & 0xFF;
a[1] = (i >> 16) & 0xFF;
a[2] = (i >> 8) & 0xFF;
a[3] = i & 0xFF;
}
void Util::hexDump(const pam_handle_t *pamh, unsigned char *buf, int length) {
char *output = (char*)malloc((length * 3) + 1);
int i;
for (i=0;i<length;i++) {
sprintf(output+(i*3), "%02X ", *(buf+i));
}
pam_syslog(pamh, LOG_EMERG, output);
free(output);
}
void Util::hexStringToChar(unsigned char *buffer, int len, std::string &hexString) {
assert(hexString.length() / 2 == (unsigned int)len);
char nibble[9];
nibble[8] = '\0';
uint32_t nibbleConversion;
for (int i=0;i<len/4;i++) {
memcpy(nibble, hexString.c_str()+(i*8), 8);
sscanf(nibble, "%x", &nibbleConversion);
Util::int32ToArrayBigEndian(buffer+(i*4), nibbleConversion);
}
memset(nibble, 0, sizeof(nibble));
nibbleConversion = 0;
}
std::string Util::charToHexString(const unsigned char* buffer, size_t size) {
std::stringstream str;
str.setf(std::ios_base::hex, std::ios::basefield);
str.fill('0');
for (size_t i=0;i<size;++i) {
str << std::setw(2) << (unsigned short)(unsigned char)buffer[i];
}
return str.str();
}
|
