Remove useless macros. Sort errors.
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wiz
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@ -1,4 +1,4 @@
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.\" $NetBSD: ypclnt.3,v 1.29 2018/02/07 11:16:06 pgoyette Exp $
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.\" $NetBSD: ypclnt.3,v 1.30 2018/02/11 13:30:55 wiz Exp $
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.\"
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.\" Copyright (c) 1996 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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@ -78,12 +78,8 @@
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.Sh DESCRIPTION
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The
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.Nm ypclnt
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suite provides an interface to the
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.Tn YP
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subsystem.
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For a general description of the
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.Tn YP
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subsystem, see
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suite provides an interface to the YP subsystem.
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For a general description of the YP subsystem, see
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.Xr yp 8 .
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.Pp
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For all functions, input values begin with
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@ -99,14 +95,10 @@ itself is the null pointer, in which case the error
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.Er YPERR_BADARGS
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will be returned).
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If necessary,
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memory will be allocated by the
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.Tn YP
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client routines using
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memory will be allocated by the YP client routines using
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.Fn malloc ,
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and the result will be stored in the appropriate output value.
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If the invocation of a
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.Tn YP
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client routine doesn't return an error,
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If the invocation of a YP client routine doesn't return an error,
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and an output value is not the null pointer, then this memory
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should be freed by the user when there is no additional need for
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the data stored there.
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@ -134,45 +126,30 @@ a corresponding length parameter cannot be the null pointer unless the
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corresponding length value is zero.
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Such strings need not be NUL-terminated.
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.Pp
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All
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.Tn YP
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lookup calls (the functions
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All YP lookup calls (the functions
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.Fn yp_all ,
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.Fn yp_first ,
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.Fn yp_master ,
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.Fn yp_match ,
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.Fn yp_next ,
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.Fn yp_order )
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require a
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.Tn YP
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domain name and a
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.Tn YP
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map name.
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require a YP domain name and a YP map name.
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The default domain name may be obtained by calling
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.Fn yp_get_default_domain ,
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and should thus be used before all other
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.Tn YP
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calls in a client program.
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and should thus be used before all other YP calls in a client program.
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The value it places
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.Pa outdomain
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is suitable for use as the
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.Pa indomain
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parameter to all subsequent
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.Tn YP
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calls.
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parameter to all subsequent YP calls.
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.Pp
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In order for
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.Tn YP
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lookup calls to succeed, the client process must be bound
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to a
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.Tn YP
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server process.
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In order for YP lookup calls to succeed, the client process must be bound
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to a YP server process.
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The client process need not explicitly bind to
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the server, as it happens automatically whenever a lookup occurs.
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The function
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.Fn yp_bind
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is provided for a backup strategy, e.g. a local file, when a
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.Tn YP
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is provided for a backup strategy, e.g. a local file, when a YP
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server process is not available.
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Each binding uses one socket descriptor on the client
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process, which may be explicitly freed using
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@ -180,20 +157,14 @@ process, which may be explicitly freed using
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which frees all per-process and per-node resources to bind the domain and
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marks the domain unbound.
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.Pp
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If, during a
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.Tn YP
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lookup, an RPC failure occurs, the domain used in the lookup
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If, during a YP lookup, an RPC failure occurs, the domain used in the lookup
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is automatically marked unbound and the
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.Nm ypclnt
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layer retries the lookup as long as
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.Xr ypbind 8
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is running and either the client process cannot bind to a server for the domain
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specified in the lookup, or RPC requests to the
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.Tn YP
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server process fail.
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If an error is not RPC-related, one of the
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.Tn YP
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error codes described below
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specified in the lookup, or RPC requests to the YP server process fail.
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If an error is not RPC-related, one of the YP error codes described below
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is returned and control given back to the user code.
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.Pp
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The
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@ -225,9 +196,7 @@ Of course, the notions of
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and
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.Dq next
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are particular to the
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type of
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.Tn YP
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map being accessed, and thus there is no guarantee of lexical order.
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type of YP map being accessed, and thus there is no guarantee of lexical order.
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The only guarantees provided with
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.Fn yp_first
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and
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@ -295,9 +264,7 @@ Holds one of the return status values described in
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.In rpcsvc/yp_prot.h :
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see
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.Fn ypprot_err
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below for a function that will translate
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.Tn YP
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protocol errors into a
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below for a function that will translate YP protocol errors into a
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.Nm ypclnt
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layer error code as described in
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.In rpcsvc/ypclnt.h .
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@ -334,9 +301,7 @@ something useful or simply ignore it.
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.It Fn yp_order
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Returns the order number for a map.
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.It Fn yp_master
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Returns the hostname for the machine on which the master
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.Tn YP
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server process for
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Returns the hostname for the machine on which the master YP server process for
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a map is running.
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.It Fn yperr_string
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Returns a pointer to a NUL-terminated error string that does not contain a
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@ -344,9 +309,7 @@ Returns a pointer to a NUL-terminated error string that does not contain a
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or
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.Ql \en .
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.It Fn ypprot_err
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Converts a
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.Tn YP
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protocol error code to a
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Converts a YP protocol error code to a
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.Nm ypclnt
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error code suitable for
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.Fn yperr_string .
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@ -372,21 +335,18 @@ return 0 upon success or one of the following error codes upon failure:
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.It Bq Er YPERR_BADARGS
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The passed arguments to the function are invalid.
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.It Bq Er YPERR_BADDB
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The
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.Tn YP
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map that was polled is defective.
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The YP map that was polled is defective.
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.It Bq Er YPERR_BIND
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Cannot communicate with
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.Xr ypbind 8 .
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.It Bq Er YPERR_DOM
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The local YP domain is not set.
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.It Bq Er YPERR_DOMAIN
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Client process cannot bind to server on this
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.Tn YP
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domain.
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Client process cannot bind to server on this YP domain.
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.It Bq Er YPERR_KEY
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The key passed does not exist.
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.It Bq Er YPERR_MAP
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There is no such map in the server's domain.
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.It Bq Er YPERR_DOM
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The local
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.Tn YP
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domain is not set.
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.It Bq Er YPERR_NOMORE
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There are no more records in the queried map.
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.It Bq Er YPERR_PMAP
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@ -399,20 +359,13 @@ An RPC failure has occurred.
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The domain has been marked unbound.
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.It Bq Er YPERR_VERS
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Client/server version mismatch.
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If the server is running version 1 of the
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.Tn YP
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protocol,
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If the server is running version 1 of the YP protocol,
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.Fn yp_all
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functionality does not exist.
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.It Bq Er YPERR_BIND
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Cannot communicate with
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.Xr ypbind 8 .
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.It Bq Er YPERR_YPERR
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An internal server or client error has occurred.
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.It Bq Er YPERR_YPSERV
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The client cannot communicate with the
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.Tn YP
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server process.
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The client cannot communicate with the YP server process.
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.El
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.Sh SEE ALSO
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.Xr malloc 3 ,
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