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