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.\" $OpenBSD: getrpcport.3,v 1.8 2007/05/31 19:19:30 jmc Exp $
.\"
.\" Sun RPC is a product of Sun Microsystems, Inc. and is provided for
.\" unrestricted use provided that this legend is included on all tape
.\" media and as a part of the software program in whole or part. Users
.\" may copy or modify Sun RPC without charge, but are not authorized
.\" to license or distribute it to anyone else except as part of a product or
.\" program developed by the user.
.\"
.\" SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
.\" WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
.\" PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
.\"
.\" Sun RPC is provided with no support and without any obligation on the
.\" part of Sun Microsystems, Inc. to assist in its use, correction,
.\" modification or enhancement.
.\"
.\" SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
.\" INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
.\" OR ANY PART THEREOF.
.\"
.\" In no event will Sun Microsystems, Inc. be liable for any lost revenue
.\" or profits or other special, indirect and consequential damages, even if
.\" Sun has been advised of the possibility of such damages.
.\"
.\" Sun Microsystems, Inc.
.\" 2550 Garcia Avenue
.\" Mountain View, California 94043
.\"
.Dd $Mdocdate: May 31 2007 $
.Dt GETRPCPORT 3
.Os
.Sh NAME
.Nm getrpcport
.Nd get RPC port number
.Sh SYNOPSIS
.Fd #include <rpc/rpc.h>
.Ft int
.Fn getrpcport "char *host" "int prognum" "int versnum" "int proto"
.Sh DESCRIPTION
.Fn getrpcport
returns the port number for version
.Fa versnum
of the RPC program
.Fa prognum
running on
.Fa host
and using protocol
.Fa proto .
It returns 0 if it cannot contact the portmapper, or if
.Fa prognum
is not registered.
If
.Fa prognum
is registered but not with version
.Fa versnum ,
it will still return a port number (for some version of the program)
indicating that the program is indeed registered.
The version mismatch will be detected upon the first call to the service.
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