int ArchiveFile::ExtractItem(int index, const char* outFilename) const
{
assert(!s_formatInfos.empty());
//assert(index >= 0 && index < m_numItems);
if(!(index >= 0 && index < m_numItems)) return 0;
ArchiveItem& item = m_items[index];
int rv = item.size;
DWORD outAttributes = GetFileAttributes(outFilename);
if(outAttributes & FILE_ATTRIBUTE_READONLY)
SetFileAttributes(outFilename, outAttributes & ~FILE_ATTRIBUTE_READONLY); // temporarily remove read-only attribute so we can decompress to there
if(m_typeIndex < 0)
{
// uncompressed
if(!CopyFile(m_filename, outFilename, false))
rv = 0;
}
else
{
fex_t * object;
fex_err_t err = fex_open_type( &object, m_filename, s_formatInfos[m_typeIndex].type );
if ( !err )
{
if ( index != 0 ) err = fex_seek_arc( object, item.offset );
if ( !err )
{
unsigned char * buffer = new unsigned char[item.size];
err = fex_read( object, buffer, item.size );
if ( !err )
{
FILE * f = fopen(outFilename, "wb");
if (f)
{
fwrite( buffer, 1, item.size, f );
fclose( f );
}
else rv = 0;
}
else rv = 0;
}
else rv = 0;
fex_close( object );
}
else rv = 0;
}
if(outAttributes & FILE_ATTRIBUTE_READONLY)
SetFileAttributes(outFilename, outAttributes); // restore read-only attribute
return rv;
}
static fex_err_t fex_data_( File_Extractor* fe )
{
if ( !fe->data )
{
fe->data = malloc( fe->size );
if ( !fe->data ) return "Out of memory";
fex_err_t err = fex_read( fe, fe->data, fe->size );
if ( err )
{
free( fe->data );
return err;
}
}
return 0;
}
int ArchiveFile::ExtractItem(int index, unsigned char* outBuffer, int bufSize) const
{
assert(!s_formatInfos.empty());
//assert(index >= 0 && index < m_numItems);
if(!(index >= 0 && index < m_numItems)) return 0;
ArchiveItem& item = m_items[index];
if(bufSize < item.size)
return 0;
if(m_typeIndex < 0)
{
// uncompressed
FILE* file = fopen(m_filename, "rb");
fread(outBuffer, 1, item.size, file);
fclose(file);
}
else
{
fex_t * object;
fex_err_t err = fex_open_type( &object, m_filename, s_formatInfos[m_typeIndex].type );
if ( !err )
{
if ( index != 0 ) err = fex_seek_arc( object, item.offset );
if ( !err )
{
err = fex_read( object, outBuffer, item.size );
if ( !err )
{
fex_close( object );
return item.size;
}
}
fex_close( object );
}
return 0;
}
return item.size;
}
fex_err_t fex_read_once ( File_Extractor* fe, void* out, long count ) { return fex_read( fe, out, count ); }
