bool zip::ZipArchiveInput::ReadFile( String_t const& fileName, Byte_t*& pMemoryBlock, size_t& size )
{
String_t fileNameKey = fileName;
if( !m_caseSensitive )
for (size_t i = 0; i < fileNameKey.size(); ++i )
fileNameKey[i] = _ttolower( fileNameKey[i] );
NameToEntry_t::const_iterator keyValue = m_nameToEntry.find( fileNameKey );
if( keyValue == m_nameToEntry.end() )
{
m_errorMessage << "file " << fileNameKey << " not found in the zip index" << std::endl;
return false;
}
ZipEntry const& zipEntry = keyValue->second;
unz_file_pos pos;
pos.pos_in_zip_directory = zipEntry.pos_in_zip_directory;
pos.num_of_file = zipEntry.num_of_file;
int err = unzGoToFilePos( uf, &pos );
if( err != UNZ_OK )
{
m_errorMessage << "Can't go to file " << fileName << std::endl;
return false;
}
return ReadCurrentFile( fileName, pMemoryBlock, size );
}
bool zip::ZipArchiveInput::LocateAndReadFile( String_t const& fileName, Byte_t*& pMemoryBlock, size_t& size )
{
int err = UNZ_OK;
#ifdef SCARAB_WCHAR_MODE
std::string fileNameInZip = utf_convert::as_utf8( fileName );
#else
std::string fileNameInZip = fileName;
#endif
if ( unzLocateFile( uf, fileNameInZip.c_str(), m_caseSensitive ) != UNZ_OK )
{
m_errorMessage << "file " << fileName << " not found in the zipfile" << std::endl;
return false;
}
return ReadCurrentFile( fileName, pMemoryBlock, size );
}
bool vtUnzip::ExtractCurrentFile(FILE* file, void* buf, size_t size_buf)
{
bool bOK = true;
while (bOK)
{
int bytes = ReadCurrentFile(buf,size_buf);
if (bytes < 0)
{
VTLOG("error with zipfile in ReadCurrentFile\n");
bOK = false;
}
else if (bytes > 0)
{
if (fwrite(buf,bytes,1,file)!=1)
{
VTLOG("error in writing extracted file\n");
bOK = false;
}
}
else
break;
}
return bOK;
}