code: def _raw_name_string(bufr, strings_offset, str_offset, length):
          
          offset = strings_offset + str_offset
          tmpl = '%ds' % length
          return unpack_from(tmpl, bufr, offset)[0]
docs: Return the *length* bytes comprising the encoded string in *bufr* at
          *str_offset* in the strings area beginning at *strings_offset*.