FunctionPackage: socketToCDocOverviewCGDocRelNotesIndexPermutedIndex
Allegro CL version 7.0
Unrevised from 6.2 to 7.0. Moderate update since 7.0 release.

lookup-hostname

Arguments: host &key ignore-cache

host should be a string naming a host, a 32-bit IP address, or a string in dotted form. This function returns the 32-bit IP address for the host. An error is signaled if the host can't be found. See the documentation for *dns-mode* for information on the manner in which name resolution occurs.

To enhance performance, lookup-hostname caches answers to queries and reuses those answers for subsequent lookups of the same name. If the IP address associated with a given hostname has changed since the information was cached, lookup-hostname may return out-of-date information. If the ignore-cache argument is specified true, then lookup-hostname will not use its cache to answer the query.

See also *dns-mode*.

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


Copyright (c) 1998-2006, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 7.0. This page was not revised from the 6.2 page.
Created 2004.8.21.

ToCDocOverviewCGDocRelNotesIndexPermutedIndex
Allegro CL version 7.0
Unrevised from 6.2 to 7.0. Moderate update since 7.0 release.