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phoenix |
/* @(#)clnt.h 2.1 88/07/29 4.0 RPCSRC; from 1.31 88/02/08 SMI*/
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/*
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* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
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* unrestricted use provided that this legend is included on all tape
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* media and as a part of the software program in whole or part. Users
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* may copy or modify Sun RPC without charge, but are not authorized
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* to license or distribute it to anyone else except as part of a product or
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* program developed by the user.
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*
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* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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*
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* Sun RPC is provided with no support and without any obligation on the
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* part of Sun Microsystems, Inc. to assist in its use, correction,
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* modification or enhancement.
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*
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* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
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* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
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* OR ANY PART THEREOF.
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*
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* In no event will Sun Microsystems, Inc. be liable for any lost revenue
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* or profits or other special, indirect and consequential damages, even if
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* Sun has been advised of the possibility of such damages.
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*
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* Sun Microsystems, Inc.
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* 2550 Garcia Avenue
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* Mountain View, California 94043
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*/
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/*
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* clnt.h - Client side remote procedure call interface.
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*
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* Copyright (C) 1984, Sun Microsystems, Inc.
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*/
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#ifndef _RPC_CLNT_H
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#define _RPC_CLNT_H 1
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#include <features.h>
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#include <sys/types.h>
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#include <rpc/types.h>
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#include <rpc/auth.h>
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#include <sys/un.h>
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__BEGIN_DECLS
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/*
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* Rpc calls return an enum clnt_stat. This should be looked at more,
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* since each implementation is required to live with this (implementation
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* independent) list of errors.
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*/
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enum clnt_stat {
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RPC_SUCCESS=0, /* call succeeded */
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/*
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* local errors
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*/
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RPC_CANTENCODEARGS=1, /* can't encode arguments */
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RPC_CANTDECODERES=2, /* can't decode results */
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RPC_CANTSEND=3, /* failure in sending call */
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RPC_CANTRECV=4, /* failure in receiving result */
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RPC_TIMEDOUT=5, /* call timed out */
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/*
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* remote errors
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*/
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RPC_VERSMISMATCH=6, /* rpc versions not compatible */
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RPC_AUTHERROR=7, /* authentication error */
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RPC_PROGUNAVAIL=8, /* program not available */
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RPC_PROGVERSMISMATCH=9, /* program version mismatched */
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RPC_PROCUNAVAIL=10, /* procedure unavailable */
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RPC_CANTDECODEARGS=11, /* decode arguments error */
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RPC_SYSTEMERROR=12, /* generic "other problem" */
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RPC_NOBROADCAST = 21, /* Broadcasting not supported */
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/*
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* callrpc & clnt_create errors
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*/
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RPC_UNKNOWNHOST=13, /* unknown host name */
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RPC_UNKNOWNPROTO=17, /* unknown protocol */
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RPC_UNKNOWNADDR = 19, /* Remote address unknown */
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/*
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* rpcbind errors
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*/
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RPC_RPCBFAILURE=14, /* portmapper failed in its call */
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#define RPC_PMAPFAILURE RPC_RPCBFAILURE
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RPC_PROGNOTREGISTERED=15, /* remote program is not registered */
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RPC_N2AXLATEFAILURE = 22, /* Name to addr translation failed */
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/*
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* unspecified error
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*/
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RPC_FAILED=16,
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RPC_INTR=18,
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RPC_TLIERROR=20,
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RPC_UDERROR=23,
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/*
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* asynchronous errors
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*/
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RPC_INPROGRESS = 24,
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RPC_STALERACHANDLE = 25
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};
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/*
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* Error info.
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*/
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struct rpc_err {
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enum clnt_stat re_status;
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union {
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int RE_errno; /* related system error */
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enum auth_stat RE_why; /* why the auth error occurred */
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struct {
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u_long low; /* lowest verion supported */
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u_long high; /* highest verion supported */
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} RE_vers;
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struct { /* maybe meaningful if RPC_FAILED */
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long s1;
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long s2;
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} RE_lb; /* life boot & debugging only */
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} ru;
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#define re_errno ru.RE_errno
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#define re_why ru.RE_why
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#define re_vers ru.RE_vers
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#define re_lb ru.RE_lb
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};
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/*
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* Client rpc handle.
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* Created by individual implementations, see e.g. rpc_udp.c.
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* Client is responsible for initializing auth, see e.g. auth_none.c.
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*/
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typedef struct CLIENT CLIENT;
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struct CLIENT {
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AUTH *cl_auth; /* authenticator */
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struct clnt_ops {
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enum clnt_stat (*cl_call) (CLIENT *, u_long, xdrproc_t, caddr_t, xdrproc_t,
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caddr_t, struct timeval);
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/* call remote procedure */
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void (*cl_abort) (void); /* abort a call */
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void (*cl_geterr) (CLIENT *, struct rpc_err *);
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/* get specific error code */
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bool_t (*cl_freeres) (CLIENT *, xdrproc_t, caddr_t);
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/* frees results */
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void (*cl_destroy) (CLIENT *); /* destroy this structure */
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bool_t (*cl_control) (CLIENT *, int, char *);
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/* the ioctl() of rpc */
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} *cl_ops;
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caddr_t cl_private; /* private stuff */
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};
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/*
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* client side rpc interface ops
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*
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* Parameter types are:
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*
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*/
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/*
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* enum clnt_stat
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* CLNT_CALL(rh, proc, xargs, argsp, xres, resp, timeout)
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* CLIENT *rh;
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* u_long proc;
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* xdrproc_t xargs;
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* caddr_t argsp;
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* xdrproc_t xres;
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* caddr_t resp;
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* struct timeval timeout;
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*/
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#define CLNT_CALL(rh, proc, xargs, argsp, xres, resp, secs) \
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((*(rh)->cl_ops->cl_call)(rh, proc, xargs, argsp, xres, resp, secs))
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#define clnt_call(rh, proc, xargs, argsp, xres, resp, secs) \
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((*(rh)->cl_ops->cl_call)(rh, proc, xargs, argsp, xres, resp, secs))
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/*
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* void
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* CLNT_ABORT(rh);
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* CLIENT *rh;
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*/
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#define CLNT_ABORT(rh) ((*(rh)->cl_ops->cl_abort)(rh))
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#define clnt_abort(rh) ((*(rh)->cl_ops->cl_abort)(rh))
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/*
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* struct rpc_err
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* CLNT_GETERR(rh);
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* CLIENT *rh;
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*/
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#define CLNT_GETERR(rh,errp) ((*(rh)->cl_ops->cl_geterr)(rh, errp))
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#define clnt_geterr(rh,errp) ((*(rh)->cl_ops->cl_geterr)(rh, errp))
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/*
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* bool_t
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* CLNT_FREERES(rh, xres, resp);
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* CLIENT *rh;
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* xdrproc_t xres;
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* caddr_t resp;
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*/
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#define CLNT_FREERES(rh,xres,resp) ((*(rh)->cl_ops->cl_freeres)(rh,xres,resp))
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#define clnt_freeres(rh,xres,resp) ((*(rh)->cl_ops->cl_freeres)(rh,xres,resp))
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/*
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* bool_t
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* CLNT_CONTROL(cl, request, info)
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* CLIENT *cl;
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* u_int request;
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* char *info;
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*/
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#define CLNT_CONTROL(cl,rq,in) ((*(cl)->cl_ops->cl_control)(cl,rq,in))
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#define clnt_control(cl,rq,in) ((*(cl)->cl_ops->cl_control)(cl,rq,in))
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/*
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* control operations that apply to all transports
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*
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* Note: options marked XXX are no-ops in this implementation of RPC.
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* The are present in TI-RPC but can't be implemented here since they
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* depend on the presence of STREAMS/TLI, which we don't have.
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*/
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#define CLSET_TIMEOUT 1 /* set timeout (timeval) */
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#define CLGET_TIMEOUT 2 /* get timeout (timeval) */
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#define CLGET_SERVER_ADDR 3 /* get server's address (sockaddr) */
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#define CLGET_FD 6 /* get connections file descriptor */
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#define CLGET_SVC_ADDR 7 /* get server's address (netbuf) XXX */
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#define CLSET_FD_CLOSE 8 /* close fd while clnt_destroy */
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#define CLSET_FD_NCLOSE 9 /* Do not close fd while clnt_destroy*/
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#define CLGET_XID 10 /* Get xid */
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#define CLSET_XID 11 /* Set xid */
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#define CLGET_VERS 12 /* Get version number */
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#define CLSET_VERS 13 /* Set version number */
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#define CLGET_PROG 14 /* Get program number */
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#define CLSET_PROG 15 /* Set program number */
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#define CLSET_SVC_ADDR 16 /* get server's address (netbuf) XXX */
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#define CLSET_PUSH_TIMOD 17 /* push timod if not already present XXX */
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#define CLSET_POP_TIMOD 18 /* pop timod XXX */
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/*
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* Connectionless only control operations
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*/
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#define CLSET_RETRY_TIMEOUT 4 /* set retry timeout (timeval) */
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#define CLGET_RETRY_TIMEOUT 5 /* get retry timeout (timeval) */
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/*
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* void
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* CLNT_DESTROY(rh);
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* CLIENT *rh;
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*/
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#define CLNT_DESTROY(rh) ((*(rh)->cl_ops->cl_destroy)(rh))
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#define clnt_destroy(rh) ((*(rh)->cl_ops->cl_destroy)(rh))
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/*
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* RPCTEST is a test program which is accessible on every rpc
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* transport/port. It is used for testing, performance evaluation,
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* and network administration.
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*/
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#define RPCTEST_PROGRAM ((u_long)1)
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#define RPCTEST_VERSION ((u_long)1)
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#define RPCTEST_NULL_PROC ((u_long)2)
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#define RPCTEST_NULL_BATCH_PROC ((u_long)3)
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/*
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* By convention, procedure 0 takes null arguments and returns them
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*/
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| 265 |
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#define NULLPROC ((u_long)0)
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/*
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* Below are the client handle creation routines for the various
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* implementations of client side rpc. They can return NULL if a
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* creation failure occurs.
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*/
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/*
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| 274 |
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* Memory based rpc (for speed check and testing)
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* CLIENT *
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* clntraw_create(prog, vers)
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* u_long prog;
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* u_long vers;
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*/
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| 280 |
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extern CLIENT *clntraw_create (__const u_long __prog, __const u_long __vers)
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__THROW;
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| 282 |
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| 283 |
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| 284 |
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/*
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| 285 |
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* Generic client creation routine. Supported protocols are "udp", "tcp" and
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* "unix"
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* CLIENT *
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* clnt_create(host, prog, vers, prot)
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* char *host; -- hostname
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* u_long prog; -- program number
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* u_ong vers; -- version number
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* char *prot; -- protocol
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*/
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| 294 |
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extern CLIENT *clnt_create (__const char *__host, __const u_long __prog,
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__const u_long __vers, __const char *__prot)
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| 296 |
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__THROW;
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| 297 |
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| 298 |
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| 299 |
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/*
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| 300 |
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* TCP based rpc
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| 301 |
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* CLIENT *
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| 302 |
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* clnttcp_create(raddr, prog, vers, sockp, sendsz, recvsz)
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* struct sockaddr_in *raddr;
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| 304 |
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* u_long prog;
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| 305 |
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* u_long version;
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| 306 |
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* register int *sockp;
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| 307 |
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* u_int sendsz;
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| 308 |
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* u_int recvsz;
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*/
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| 310 |
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extern CLIENT *clnttcp_create (struct sockaddr_in *__raddr, u_long __prog,
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| 311 |
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u_long __version, int *__sockp, u_int __sendsz,
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| 312 |
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u_int __recvsz) __THROW;
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| 313 |
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| 314 |
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/*
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| 315 |
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* UDP based rpc.
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| 316 |
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* CLIENT *
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| 317 |
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* clntudp_create(raddr, program, version, wait, sockp)
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| 318 |
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* struct sockaddr_in *raddr;
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| 319 |
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* u_long program;
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| 320 |
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* u_long version;
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| 321 |
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* struct timeval wait_resend;
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| 322 |
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* int *sockp;
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| 323 |
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*
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| 324 |
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* Same as above, but you specify max packet sizes.
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| 325 |
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* CLIENT *
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| 326 |
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* clntudp_bufcreate(raddr, program, version, wait, sockp, sendsz, recvsz)
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| 327 |
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* struct sockaddr_in *raddr;
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| 328 |
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* u_long program;
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| 329 |
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* u_long version;
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| 330 |
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* struct timeval wait_resend;
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| 331 |
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* int *sockp;
|
| 332 |
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|
* u_int sendsz;
|
| 333 |
|
|
* u_int recvsz;
|
| 334 |
|
|
*/
|
| 335 |
|
|
extern CLIENT *clntudp_create (struct sockaddr_in *__raddr, u_long __program,
|
| 336 |
|
|
u_long __version, struct timeval __wait_resend,
|
| 337 |
|
|
int *__sockp) __THROW;
|
| 338 |
|
|
extern CLIENT *clntudp_bufcreate (struct sockaddr_in *__raddr,
|
| 339 |
|
|
u_long __program, u_long __version,
|
| 340 |
|
|
struct timeval __wait_resend, int *__sockp,
|
| 341 |
|
|
u_int __sendsz, u_int __recvsz) __THROW;
|
| 342 |
|
|
|
| 343 |
|
|
|
| 344 |
|
|
|
| 345 |
|
|
|
| 346 |
|
|
/*
|
| 347 |
|
|
* AF_UNIX based rpc
|
| 348 |
|
|
* CLIENT *
|
| 349 |
|
|
* clntunix_create(raddr, prog, vers, sockp, sendsz, recvsz)
|
| 350 |
|
|
* struct sockaddr_un *raddr;
|
| 351 |
|
|
* u_long prog;
|
| 352 |
|
|
* u_long version;
|
| 353 |
|
|
* register int *sockp;
|
| 354 |
|
|
* u_int sendsz;
|
| 355 |
|
|
* u_int recvsz;
|
| 356 |
|
|
*/
|
| 357 |
|
|
extern CLIENT *clntunix_create (struct sockaddr_un *__raddr, u_long __program,
|
| 358 |
|
|
u_long __version, int *__sockp,
|
| 359 |
|
|
u_int __sendsz, u_int __recvsz) __THROW;
|
| 360 |
|
|
|
| 361 |
|
|
|
| 362 |
|
|
extern int callrpc (__const char *__host, __const u_long __prognum,
|
| 363 |
|
|
__const u_long __versnum, __const u_long __procnum,
|
| 364 |
|
|
__const xdrproc_t __inproc, __const char *__in,
|
| 365 |
|
|
__const xdrproc_t __outproc, char *__out) __THROW;
|
| 366 |
|
|
extern int _rpc_dtablesize (void) __THROW;
|
| 367 |
|
|
|
| 368 |
|
|
/*
|
| 369 |
|
|
* Print why creation failed
|
| 370 |
|
|
*/
|
| 371 |
|
|
extern void clnt_pcreateerror (__const char *__msg) __THROW; /* stderr */
|
| 372 |
|
|
extern char *clnt_spcreateerror(__const char *__msg) __THROW; /* string */
|
| 373 |
|
|
|
| 374 |
|
|
/*
|
| 375 |
|
|
* Like clnt_perror(), but is more verbose in its output
|
| 376 |
|
|
*/
|
| 377 |
|
|
extern void clnt_perrno (enum clnt_stat __num) __THROW; /* stderr */
|
| 378 |
|
|
|
| 379 |
|
|
/*
|
| 380 |
|
|
* Print an English error message, given the client error code
|
| 381 |
|
|
*/
|
| 382 |
|
|
extern void clnt_perror (CLIENT *__clnt, __const char *__msg) __THROW;
|
| 383 |
|
|
/* stderr */
|
| 384 |
|
|
extern char *clnt_sperror (CLIENT *__clnt, __const char *__msg) __THROW;
|
| 385 |
|
|
/* string */
|
| 386 |
|
|
|
| 387 |
|
|
/*
|
| 388 |
|
|
* If a creation fails, the following allows the user to figure out why.
|
| 389 |
|
|
*/
|
| 390 |
|
|
struct rpc_createerr {
|
| 391 |
|
|
enum clnt_stat cf_stat;
|
| 392 |
|
|
struct rpc_err cf_error; /* useful when cf_stat == RPC_PMAPFAILURE */
|
| 393 |
|
|
};
|
| 394 |
|
|
|
| 395 |
|
|
extern struct rpc_createerr rpc_createerr;
|
| 396 |
|
|
|
| 397 |
|
|
|
| 398 |
|
|
|
| 399 |
|
|
/*
|
| 400 |
|
|
* Copy error message to buffer.
|
| 401 |
|
|
*/
|
| 402 |
|
|
extern char *clnt_sperrno (enum clnt_stat __num) __THROW; /* string */
|
| 403 |
|
|
|
| 404 |
|
|
/*
|
| 405 |
|
|
* get the port number on the host for the rpc program,version and proto
|
| 406 |
|
|
*/
|
| 407 |
|
|
extern int getrpcport (__const char * __host, u_long __prognum,
|
| 408 |
|
|
u_long __versnum, u_int proto) __THROW;
|
| 409 |
|
|
|
| 410 |
|
|
/*
|
| 411 |
|
|
* get the local host's IP address without consulting
|
| 412 |
|
|
* name service library functions
|
| 413 |
|
|
*/
|
| 414 |
|
|
extern void get_myaddress (struct sockaddr_in *) __THROW;
|
| 415 |
|
|
|
| 416 |
|
|
#define UDPMSGSIZE 8800 /* rpc imposed limit on udp msg size */
|
| 417 |
|
|
#define RPCSMALLMSGSIZE 400 /* a more reasonable packet size */
|
| 418 |
|
|
|
| 419 |
|
|
__END_DECLS
|
| 420 |
|
|
|
| 421 |
|
|
#endif /* rpc/clnt.h */
|
