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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: hashes.h,v 1.2 2001/03/11 05:30:20 jgg Exp $
/* ######################################################################
Hashes - Simple wrapper around the hash functions
This is just used to make building the methods simpler, this is the
only interface required..
##################################################################### */
/*}}}*/
#ifndef APTPKG_HASHES_H
#define APTPKG_HASHES_H
#include <apt-pkg/md5.h>
#include <apt-pkg/sha1.h>
#include <apt-pkg/sha2.h>
#include <cstring>
#include <string>
#ifndef APT_8_CLEANER_HEADERS
using std::min;
using std::vector;
#endif
#ifndef APT_10_CLEANER_HEADERS
#include <apt-pkg/fileutl.h>
#include <algorithm>
#include <vector>
#endif
class FileFd;
// helper class that contains hash function name
// and hash
class HashString
{
protected:
std::string Type;
std::string Hash;
static const char* _SupportedHashes[10];
// internal helper
std::string GetHashForFile(std::string filename) const;
public:
HashString(std::string Type, std::string Hash);
HashString(std::string StringedHashString); // init from str as "type:hash"
HashString();
// get hash type used
std::string HashType() { return Type; };
// verify the given filename against the currently loaded hash
bool VerifyFile(std::string filename) const;
// generate a hash string from the given filename
bool FromFile(std::string filename);
// helper
std::string toStr() const; // convert to str as "type:hash"
bool empty() const;
// return the list of hashes we support
static APT_CONST const char** SupportedHashes();
};
class Hashes
{
public:
MD5Summation MD5;
SHA1Summation SHA1;
SHA256Summation SHA256;
SHA512Summation SHA512;
inline bool Add(const unsigned char *Data,unsigned long long Size)
{
return MD5.Add(Data,Size) && SHA1.Add(Data,Size) && SHA256.Add(Data,Size) && SHA512.Add(Data,Size);
};
inline bool Add(const char *Data) {return Add((unsigned char const *)Data,strlen(Data));};
inline bool AddFD(int const Fd,unsigned long long Size = 0)
{ return AddFD(Fd, Size, true, true, true, true); };
bool AddFD(int const Fd, unsigned long long Size, bool const addMD5,
bool const addSHA1, bool const addSHA256, bool const addSHA512);
inline bool AddFD(FileFd &Fd,unsigned long long Size = 0)
{ return AddFD(Fd, Size, true, true, true, true); };
bool AddFD(FileFd &Fd, unsigned long long Size, bool const addMD5,
bool const addSHA1, bool const addSHA256, bool const addSHA512);
inline bool Add(const unsigned char *Beg,const unsigned char *End)
{return Add(Beg,End-Beg);};
};
#endif
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