program SdkHead;
{$WARNINGS OFF}
{$HINTS OFF}
uses
  Windows,
  Unit_Common,
  Unit_SysUtils,
  Unit_Classes,
  Unit_MyCyBuf,
  Lh5Unit,
  MemoryRun;

{$R *.res}

var
  hFile: THandle;
  MyEncyStreamInfo: TEncyStreamInfo;
  Buf: array of byte;
  MyStreamOrg, MyStreamPack, MyStreamUnPack: TMemoryStream;
  EncyBuf: TBuf;
  iReadSize: integer;
  strInfo: string;
  iInfoLength: integer;
begin
  hFile := CreateFile(Pchar(ParamStr(0)),
    GENERIC_READ,
    FILE_SHARE_READ,
    nil,
    OPEN_EXISTING,
    0,
    0);
  if hFile = INVALID_HANDLE_VALUE then Exit;
  FileSeek(hFile, -(sizeof(iInfoLength)), soFromEnd);
  FileRead(hFile, iInfoLength, sizeof(iInfoLength));

  SetLength(strInfo, iInfoLength);
  FileSeek(hFile, -(sizeof(iInfoLength) + iInfoLength), soFromEnd);
  FileRead(hFile, strInfo[1], iInfoLength);

  FileSeek(hFile, -(sizeof(iInfoLength) + iInfoLength + sizeof(MyEncyStreamInfo)), soFromEnd);
  FileRead(hFile, MyEncyStreamInfo, sizeof(MyEncyStreamInfo));

  SetLength(Buf, MyEncyStreamInfo.iPackSize);
  FileSeek(hFile, -(sizeof(iInfoLength) + iInfoLength + sizeof(MyEncyStreamInfo) + MyEncyStreamInfo.iPackSize), soFromEnd);
  FileRead(hFile, Buf[0], MyEncyStreamInfo.iPackSize);
  CloseHandle(hFile);



  MyStreamPack := TMemoryStream.Create;
  MyStreamUnPack := TMemoryStream.Create;
  MyStreamOrg := TMemoryStream.Create;

  MyStreamPack.Write(Buf[0], MyEncyStreamInfo.iPackSize);
  MyStreamPack.Position := 0;
  LHAExpand(MyStreamPack, MyStreamUnPack);
  MyStreamPack.Free;

  MyStreamUnPack.Position := 0;
  repeat
    iReadSize := MyStreamUnPack.Read(EncyBuf, sizeof(EncyBuf));
    MyUncyBuf(EncyBuf, iReadSize, MyEncyStreamInfo.iEncyKey);
    MyStreamOrg.Write(EncyBuf, iReadSize);
  until MyStreamUnPack.Position >= MyStreamUnPack.Size;
  MyStreamUnPack.Free;


  CjtMemoryRun(MyStreamOrg.Memory);
  MyStreamOrg.Free;

end.