blob: 9787784f4450310a00407bab04bf3fdf600265e4 (
plain)
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
|
// util/hex.h
/* Copyright 2009 10gen Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <string>
#include "mongo/base/string_data.h"
#include "mongo/bson/util/builder.h"
namespace mongo {
//can't use hex namespace because it conflicts with hex iostream function
inline int fromHex( char c ) {
if ( '0' <= c && c <= '9' )
return c - '0';
if ( 'a' <= c && c <= 'f' )
return c - 'a' + 10;
if ( 'A' <= c && c <= 'F' )
return c - 'A' + 10;
verify( false );
return 0xff;
}
inline char fromHex( const char *c ) {
return (char)(( fromHex( c[ 0 ] ) << 4 ) | fromHex( c[ 1 ] ));
}
inline char fromHex( const StringData& c ) {
return (char)(( fromHex( c[ 0 ] ) << 4 ) | fromHex( c[ 1 ] ));
}
inline std::string toHex(const void* inRaw, int len) {
static const char hexchars[] = "0123456789ABCDEF";
StringBuilder out;
const char* in = reinterpret_cast<const char*>(inRaw);
for (int i=0; i<len; ++i) {
char c = in[i];
char hi = hexchars[(c & 0xF0) >> 4];
char lo = hexchars[(c & 0x0F)];
out << hi << lo;
}
return out.str();
}
template <typename T> std::string integerToHex(T val);
inline std::string toHexLower(const void* inRaw, int len) {
static const char hexchars[] = "0123456789abcdef";
StringBuilder out;
const char* in = reinterpret_cast<const char*>(inRaw);
for (int i=0; i<len; ++i) {
char c = in[i];
char hi = hexchars[(c & 0xF0) >> 4];
char lo = hexchars[(c & 0x0F)];
out << hi << lo;
}
return out.str();
}
}
|
