You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
118 lines
2.8 KiB
118 lines
2.8 KiB
// -*- mode: cpp; mode: fold -*-
|
|
// Description /*{{{*/
|
|
// $Id: hashsum_template.h,v 1.3 2001/05/07 05:05:47 jgg Exp $
|
|
/* ######################################################################
|
|
|
|
HashSumValueTemplate - Generic Storage for a hash value
|
|
|
|
##################################################################### */
|
|
/*}}}*/
|
|
#ifndef APTPKG_HASHSUM_TEMPLATE_H
|
|
#define APTPKG_HASHSUM_TEMPLATE_H
|
|
|
|
#include <apt-pkg/fileutl.h>
|
|
|
|
#include <string>
|
|
#include <cstring>
|
|
#include <algorithm>
|
|
#include <stdint.h>
|
|
|
|
#include <apt-pkg/strutl.h>
|
|
|
|
#ifndef APT_8_CLEANER_HEADERS
|
|
using std::string;
|
|
using std::min;
|
|
#endif
|
|
|
|
template<int N>
|
|
class HashSumValue
|
|
{
|
|
unsigned char Sum[N/8];
|
|
|
|
public:
|
|
|
|
// Accessors
|
|
bool operator ==(const HashSumValue &rhs) const
|
|
{
|
|
return memcmp(Sum,rhs.Sum,sizeof(Sum)) == 0;
|
|
}
|
|
bool operator !=(const HashSumValue &rhs) const
|
|
{
|
|
return memcmp(Sum,rhs.Sum,sizeof(Sum)) != 0;
|
|
}
|
|
|
|
std::string Value() const
|
|
{
|
|
char Conv[16] =
|
|
{ '0','1','2','3','4','5','6','7','8','9','a','b',
|
|
'c','d','e','f'
|
|
};
|
|
char Result[((N/8)*2)+1];
|
|
Result[(N/8)*2] = 0;
|
|
|
|
// Convert each char into two letters
|
|
int J = 0;
|
|
int I = 0;
|
|
for (; I != (N/8)*2; J++,I += 2)
|
|
{
|
|
Result[I] = Conv[Sum[J] >> 4];
|
|
Result[I + 1] = Conv[Sum[J] & 0xF];
|
|
}
|
|
return std::string(Result);
|
|
}
|
|
|
|
inline void Value(unsigned char S[N/8])
|
|
{
|
|
for (int I = 0; I != sizeof(Sum); ++I)
|
|
S[I] = Sum[I];
|
|
}
|
|
|
|
inline operator std::string() const
|
|
{
|
|
return Value();
|
|
}
|
|
|
|
bool Set(std::string Str)
|
|
{
|
|
return Hex2Num(Str,Sum,sizeof(Sum));
|
|
}
|
|
|
|
inline void Set(unsigned char S[N/8])
|
|
{
|
|
for (int I = 0; I != sizeof(Sum); ++I)
|
|
Sum[I] = S[I];
|
|
}
|
|
|
|
HashSumValue(std::string Str)
|
|
{
|
|
memset(Sum,0,sizeof(Sum));
|
|
Set(Str);
|
|
}
|
|
HashSumValue()
|
|
{
|
|
memset(Sum,0,sizeof(Sum));
|
|
}
|
|
};
|
|
|
|
class SummationImplementation
|
|
{
|
|
public:
|
|
virtual bool Add(const unsigned char *inbuf, unsigned long long inlen) = 0;
|
|
inline bool Add(const char *inbuf, unsigned long long const inlen)
|
|
{ return Add((const unsigned char *)inbuf, inlen); }
|
|
|
|
inline bool Add(const unsigned char *Data)
|
|
{ return Add(Data, strlen((const char *)Data)); }
|
|
inline bool Add(const char *Data)
|
|
{ return Add((const unsigned char *)Data, strlen(Data)); }
|
|
|
|
inline bool Add(const unsigned char *Beg, const unsigned char *End)
|
|
{ return Add(Beg, End - Beg); }
|
|
inline bool Add(const char *Beg, const char *End)
|
|
{ return Add((const unsigned char *)Beg, End - Beg); }
|
|
|
|
bool AddFD(int Fd, unsigned long long Size = 0);
|
|
bool AddFD(FileFd &Fd, unsigned long long Size = 0);
|
|
};
|
|
|
|
#endif
|
|
|