Bug in ZipSubRStream?

FilterStream* ZipAggregate::openStreamForEntry(const ZipAggregate::FileEntry &fe)
{
	AssertFatal(m_pZipFileName,"ZipAggregate is not open")

 FileStream diskStream;
 diskStream.open(m_pZipFileName,FileStream::Read);

 diskStream.setPosition(fe.fileOffset);

      ZipLocalFileHeader zlfHeader;
      if (zlfHeader.readFromStream(diskStream) == false)
      {
         Con::errorf("'%s' is not in the zip",fe.pFileName);
         return NULL;
      }

      if (zlfHeader.m_header.compressionMethod == ZipLocalFileHeader::Stored
            || fe.fileSize == 0)
      {
         // Just read straight from the stream...
         ResizeFilterStream *strm = new ResizeFilterStream;
         strm->attachStream(&diskStream);
         strm->setStreamOffset(diskStream.getPosition (), fe.fileSize);
         return strm;
      }
      else
      {
         if (zlfHeader.m_header.compressionMethod == ZipLocalFileHeader::Deflated)
         {
          ZipSubRStream *zipStream = new ZipSubRStream;
          zipStream->attachStream(&diskStream);
          zipStream->setUncompressedSize(fe.fileSize);
          return zipStream;
         }
         else
         {
	  Con::errorf("'%s' Compressed inappropriately in the zip!",fe.pFileName);
          return NULL;
         }
      }
}

#include "console/console.h"
#include "console/consoleTypes.h"


ConsoleFunction(readZip,bool,2,2,"(filename)")
{
   ZipAggregate zipAggregate;
   if(!zipAggregate.openAggregate(argv[1]))
    return false;
   
   ZipAggregate::iterator itr = zipAggregate.begin();
   if(itr != zipAggregate.end())
   {
	FilterStream* zipfstream = zipAggregate.openStreamForEntry(*itr);
	if(!zipfstream) 
	 return false;
						
	U8 *buffer = new U8[zipfstream->getStreamSize()];
	zipfstream->read(zipfstream->getStreamSize(),buffer);


     delete [] buffer;
     delete zipfstream;	
   }

  return true;
}