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+.\" @(#)rpc_svc_err.3n 1.23 93/08/31 SMI; from SVr4
+.\" Copyright 1989 AT&T
+.\" @(#)rpc_svc_err 1.4 89/06/28 SMI;
+.\" Copyright (c) 1988 Sun Microsystems, Inc. - All Rights Reserved.
+.\"	$NetBSD: rpc_svc_err.3,v 1.1 2000/06/02 23:11:14 fvdl Exp $
+.\"	$FreeBSD: src/lib/libc/rpc/rpc_svc_err.3,v 1.4 2002/12/19 09:40:23 ru Exp $
+.Dd May 3, 1993
+.Dt RPC_SVC_ERR 3
+.Os
+.Sh NAME
+.Nm rpc_svc_err ,
+.Nm svcerr_auth ,
+.Nm svcerr_decode ,
+.Nm svcerr_noproc ,
+.Nm svcerr_noprog ,
+.Nm svcerr_progvers ,
+.Nm svcerr_systemerr ,
+.Nm svcerr_weakauth
+.Nd library routines for server side remote procedure call errors
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In rpc/rpc.h
+.Ft void
+.Fn svcerr_auth "SVCXPRT *xprt" "enum auth_stat why"
+.Ft void
+.Fn svcerr_decode "SVCXPRT *xprt"
+.Ft void
+.Fn svcerr_noproc "SVCXPRT *xprt"
+.Ft void
+.Fn svcerr_noprog "SVCXPRT *xprt"
+.Ft void
+.Fn svcerr_progvers "SVCXPRT *xprt" "rpcvers_t low_vers" "rpcvers_t high_vers"
+.Ft void
+.Fn svcerr_systemerr "SVCXPRT *xprt"
+.Ft void
+.Fn svcerr_weakauth "SVCXPRT *xprt"
+.Sh DESCRIPTION
+These routines are part of the RPC
+library which allows C language programs to make procedure
+calls on other machines across the network.
+.Pp
+These routines can be called by the server side
+dispatch function if there is any error in the
+transaction with the client.
+.Sh Routines
+See
+.Xr rpc 3
+for the definition of the
+.Vt SVCXPRT
+data structure.
+.Bl -tag -width XXXXX
+.It Fn svcerr_auth
+Called by a service dispatch routine that refuses to perform
+a remote procedure call due to an authentication error.
+.It Fn svcerr_decode
+Called by a service dispatch routine that cannot successfully
+decode the remote arguments
+(see
+.Fn svc_getargs
+in
+.Xr rpc_svc_reg 3 ) .
+.It Fn svcerr_noproc
+Called by a service dispatch routine that does not implement
+the procedure number that the caller requests.
+.It Fn svcerr_noprog
+Called when the desired program is not registered with the
+RPC package.
+Service implementors usually do not need this routine.
+.It Fn svcerr_progvers
+Called when the desired version of a program is not registered with the
+RPC package.
+The
+.Fa low_vers
+argument
+is the lowest version number,
+and
+.Fa high_vers
+is the highest version number.
+Service implementors usually do not need this routine.
+.It Fn svcerr_systemerr
+Called by a service dispatch routine when it detects a system
+error not covered by any particular protocol.
+For example, if a service can no longer allocate storage,
+it may call this routine.
+.It Fn svcerr_weakauth
+Called by a service dispatch routine that refuses to perform
+a remote procedure call due to insufficient (but correct)
+authentication arguments.
+The routine calls
+.Fn svcerr_auth "xprt" "AUTH_TOOWEAK" .
+.El
+.Sh SEE ALSO
+.Xr rpc 3 ,
+.Xr rpc_svc_calls 3 ,
+.Xr rpc_svc_create 3 ,
+.Xr rpc_svc_reg 3