— Function: sockets:lookup-service service &optional protocol

Lookup a service by port or name. protocol should be one of :tcp, :udp or :any.

— Condition: sockets:unknown-service

Class precedence list: unknown-service, condition, t

Condition raised when a network service is not found.

— Generic Function: sockets:unknown-service-datum condition

Return the datum that caused the signalling of an unknown-service condition.