rpc.subproj/getrpcport.3

   1 .\" @(#)getrpcport.3r   2.2 88/08/02 4.0 RPCSRC; from 1.12 88/02/26 SMI
   2 .\" $FreeBSD: src/lib/libc/rpc/getrpcport.3,v 1.9 2004/07/02 23:52:12 ru Exp $
   3 .\"
   4 .Dd October 6, 1987
   5 .Dt GETRPCPORT 3
   6 .Os
   7 .Sh NAME
   8 .Nm getrpcport
   9 .Nd get RPC port number
  10 .Sh LIBRARY
  11 .Lb libc
  12 .Sh SYNOPSIS
  13 .In rpc/rpc.h
  14 .Ft int
  15 .Fn getrpcport "char *host" "int prognum" "int versnum" "int proto"
  16 .Sh DESCRIPTION
  17 The
  18 .Fn getrpcport
  19 function
  20 returns the port number for version
  21 .Fa versnum
  22 of the RPC program
  23 .Fa prognum
  24 running on
  25 .Fa host
  26 and using protocol
  27 .Fa proto .
  28 It returns 0 if it cannot contact the portmapper, or if
  29 .Fa prognum
  30 is not registered.
  31 If
  32 .Fa prognum
  33 is registered but not with version
  34 .Fa versnum ,
  35 it will still return a port number (for some version of the program)
  36 indicating that the program is indeed registered.
  37 The version mismatch will be detected upon the first call to the service.