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From: bstrand@poplar13.cray.com (Brad Strand)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: How to find directory of rpc services?
Keywords: rpc, portmapper, client, server
Message-ID: <183342.17950@timbuk.cray.com>
Date: 16 Feb 91 01:03:30 GMT
References: <6988@bgsuvax.UUCP>
Distribution: na
Organization: Cray Research, Inc., Eagan, MN
Lines: 24

In article <6988@bgsuvax.UUCP> rama@bgsuvax.UUCP (Sub Ramakrishnan) writes:
>
>Question: How does a client find the "directory" of services
>(service name, port # and a description) offered on a  machine.
>The client knows neither the name nor the server port #.
>Two ways that I don't like:
>(1). The client can exhaustively poll all possible port #s.
>(2)  Read /etc/services file; does'nt give you services that "come & go".
>I am looking for ways to find the services at run time.

Use "pmap_getmaps()".  It takes a pointer to a sockaddr_in structure
for the remote host, and returns a pointer to a pmaplist structure.
If you've got source for rpcinfo, look how that program does it.

>Much appreciated.
>sub ramakrishnan       rama@truth.bgsu.edu    Voice: 419 372 2337

BDS

--
Brad Strand		bstrand@cray.com (DOMAIN) uunet!cray!bstrand (UUCP)
Cray Research, Inc.	Networking and Communications Development
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