+ \response{201 LOREV HIREV}
+ Indicates that the connection is accepted. The \param{LOREV} and
+ \param{HIREV} parameters specify the range of supported protocol
+ revisions, as described in section \ref{rev}.
+ \response{502 REASON}
+ The connection is refused by the daemon and will be closed. The
+ \param{REASON} parameter states the reason for the refusal in
+ English\footnote{So it is probably not suitable for localized
+ programs}.