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Trochę zaczytywania loda

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This commit is contained in:
Michał W. Urbańczyk 2007-06-29 18:34:41 +00:00
parent 854c08cdbb
commit eabac43509
1 changed files with 101 additions and 0 deletions
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101
CfLodHandler.h Normal file
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//TSearchRec
#include <iostream>
#include <fstream>
#include <vector>
const int dmHelp=0, dmNoExtractingMask=1;
std::string P1,P2,CurDir;
struct TSearchRec
{
}sr;
struct Entry
{
unsigned char name[12], //filename
hlam_1[4], //
hlam_2[4]; //
int offset, //from beginning
realSize, //size without compression
size; //and with
} ;
std::vector<Entry> Entries;
long TotalFiles;
int readNormalNr (unsigned char* bufor, int bytCon, bool cyclic=false)
{
int ret=0;
int amp=1;
for (int i=0; i<bytCon; i++)
{
ret+=bufor[i]*amp;
amp*=256;
}
if(cyclic && bytCon<4 && ret>=amp/2)
{
ret = ret-amp;
}
return ret;
}
int Decompress (unsigned char * source, int size, int realSize, std::ofstream & dest);
void Extract(std::string FName)
{
std::ifstream FLOD;
std::ofstream FOut;
long i;
std::string Ts;
std::cout<<"*** Loading FAT ... \n";
FLOD.open(FName.c_str(),std::ios::binary);
std::cout<<"*** Archive: "+FName+" loaded\n";
FLOD.seekg(8,std::ios_base::beg);
unsigned char temp[4];
FLOD.read((char*)temp,4);
TotalFiles = readNormalNr(temp,4);
FLOD.seekg(0x5c,std::ios_base::beg);
Entries.reserve(TotalFiles);
std::cout<<"*** Loading FAT ...\n";
for (int i=0;i<TotalFiles;i++)
{
Entries.push_back(Entry());
FLOD.read((char*)Entries[i].name,12);
FLOD.read((char*)Entries[i].hlam_1,4);
FLOD.read((char*)temp,4);
Entries[i].offset=readNormalNr(temp,4);
FLOD.read((char*)temp,4);
Entries[i].realSize=readNormalNr(temp,4);
FLOD.read((char*)Entries[i].hlam_2,4);
FLOD.read((char*)temp,4);
Entries[i].size=readNormalNr(temp,4);
}
std::cout<<" done\n";
if (TotalFiles>6) TotalFiles=6;
for (int i=0;i<TotalFiles;i++)
{
FLOD.seekg(Entries[i].offset,std::ios_base::beg);
FOut.open((char*)Entries[i].name,std::ios_base::binary);
unsigned char* outp ;
if (Entries[i].size==0)
{
outp = new unsigned char[Entries[i].realSize];
FLOD.read((char*)outp,Entries[i].realSize);
}
else
{
outp = new unsigned char[Entries[i].size];
//unsigned char * outd = new unsigned char[Entries[i].realSize];
FLOD.read((char*)outp,Entries[i].size);
FLOD.seekg(0,std::ios_base::beg);
//Decompress(outp,Entries[i].size,Entries[i].realSize,FOut);
}
for (int j=0;j<Entries[i].size;j++)
FOut << outp[j];
FOut.flush();
delete outp;
FOut.close();
std::cout<<"*** done\n";
}
FLOD.close();
std::cout<<"*** Archive: "+FName+" closed\n";
}
int Decompress (unsigned char * source, int size, int realSize, std::ofstream & dest)
{
return -1;
}