def _proc_builtin(self, tarfile):
self.offset_data = tarfile.fileobj.tell()<EOL>offset = self.offset_data<EOL>if self.isreg() or self.type not in SUPPORTED_TYPES:<EOL><INDENT>offset += self._block(self.size)<EOL><DEDENT>tarfile.offset = offset<EOL>self._apply_pax_info(tarfile.pax_headers, tarfile.encoding, tarfile.errors)<EOL>return self<EOL>
Process a builtin type or an unknown type which
           will be treated as a regular file.