FunctionPackage: socketToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 8.1
Unrevised from 8.0 to 8.1.
8.0 version

lookup-port

Arguments: port protocol

A port number is a 16-bit unsigned number (except port 0 is not used). Certain commonly used ports on machines are given symbolic names. The mapping between name and port number is kept in a file in the system area of the machine (often /etc on Unix and the Windows system directory on MS Windows). Given a symbolic name as the value of port and a protocol (either "tcp" or "udp"), lookup-port returns the associated port number (or signals an error if such a port doesn't exist). The reason that the protocol type is supplied is that the port N for protocol "tcp" is distinct from port N for protocol "udp".

See socket.htm for general information on sockets in Allegro CL.


Copyright (c) 1998-2009, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 8.1. This page was not revised from the 8.0 page.
Created 2009.7.29.

ToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 8.1
Unrevised from 8.0 to 8.1.
8.0 version