/usr/include/mongo/util/hex.h is in mongodb-dev 1:2.4.9-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | // 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();
}
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();
}
}
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