code: def _GetLink(self):
      
      if self._link is None:
        self._link = ''
  
        if self.entry_type != definitions.FILE_ENTRY_TYPE_LINK:
          return self._link
  
        cpio_archive_file = self._file_system.GetCPIOArchiveFile()
        link_data = cpio_archive_file.ReadDataAtOffset(
            self._cpio_archive_file_entry.data_offset,
            self._cpio_archive_file_entry.data_size)
  
        # TODO: should this be ASCII?
        self._link = link_data.decode('ascii')
  
      return self._link
docs: Retrieves the link.
  
      Returns:
        str: full path of the linked file entry.