1.\" $OpenBSD: getrpcport.3,v 1.10 2013/06/05 03:39:23 tedu Exp $ 2.\" 3.\" Copyright (c) 2010, Oracle America, Inc. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions are 7.\" met: 8.\" 9.\" * Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" * Redistributions in binary form must reproduce the above 12.\" copyright notice, this list of conditions and the following 13.\" disclaimer in the documentation and/or other materials 14.\" provided with the distribution. 15.\" * Neither the name of the "Oracle America, Inc." nor the names of its 16.\" contributors may be used to endorse or promote products derived 17.\" from this software without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20.\" "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 22.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 23.\" COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 24.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 26.\" GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 28.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 29.\" NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30.\" OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31.\" 32.Dd $Mdocdate: June 5 2013 $ 33.Dt GETRPCPORT 3 34.Os 35.Sh NAME 36.Nm getrpcport 37.Nd get RPC port number 38.Sh SYNOPSIS 39.In rpc/rpc.h 40.Ft int 41.Fn getrpcport "char *host" "int prognum" "int versnum" "int proto" 42.Sh DESCRIPTION 43.Fn getrpcport 44returns the port number for version 45.Fa versnum 46of the RPC program 47.Fa prognum 48running on 49.Fa host 50and using protocol 51.Fa proto . 52It returns 0 if it cannot contact the portmapper, or if 53.Fa prognum 54is not registered. 55If 56.Fa prognum 57is registered but not with version 58.Fa versnum , 59it will still return a port number (for some version of the program) 60indicating that the program is indeed registered. 61The version mismatch will be detected upon the first call to the service. 62