((type display-string selector host port)
(print type display-string "\t" selector "\t" host "\t" port "\r"))
((type display-string selector host)
((type display-string selector host port)
(print type display-string "\t" selector "\t" host "\t" port "\r"))
((type display-string selector host)
(let-values (((in-port out-port id) (process command)))
(for-each serve-info-record (read-lines in-port))))
(let-values (((in-port out-port id) (process command)))
(for-each serve-info-record (read-lines in-port))))