/*                                                                       */
/*                                                                       */
/*                      RESTRICTED RIGHTS LEGEND                         */
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/* Use, duplication, or disclosure by the Government is subject to       */
/* restrictions as set forth in subdivision (c)(1)(ii) of the Rights in  */
/* Technical Data and Computer Software clause at 252.227-7013.          */
/*                                                                       */
/*                    TEXAS INSTRUMENTS INCORPORATED.                    */
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/*                                                                       */
/*  Copyright (C)   1987,1988,1989,1990 Texas Instruments Incorporated.  */
/*  All rights reserved.                                                 */
/*                                                                       */
/*
 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
 * unrestricted use provided that this legend is included on all tape
 * media and as a part of the software program in whole or part.  Users
 * may copy or modify Sun RPC without charge, but are not authorized
 * to license or distribute it to anyone else except as part of a product or
 * program developed by the user.
 * 
 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
 * 
 * Sun RPC is provided with no support and without any obligation on the
 * part of Sun Microsystems, Inc. to assist in its use, correction,
 * modification or enhancement.
 * 
 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
 * OR ANY PART THEREOF.
 * 
 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
 * or profits or other special, indirect and consequential damages, even if
 * Sun has been advised of the possibility of such damages.
 * 
 * Sun Microsystems, Inc.
 * 2550 Garcia Avenue
 * Mountain View, California  94043
 */
#ifndef lint
static char sccsid[] = "@(#)clnt_raw.c 1.1 86/02/03 Copyr 1984 Sun Micro";
#endif

/*
 * clnt_raw.c
 *
 * Copyright (C) 1984, Sun Microsystems, Inc.
 *
 * Memory based rpc for simple testing and timing.
 * Interface to create an rpc client and server in the same process.
 * This lets us similate rpc and get round trip overhead, without
 * any interference from the kernal.
 */
#include <stdio.h>
#include "rpc-types.h"
#include "::bsd:sys:time.h"
#include "::bsd:netinet:bsd-in.h"
#include "xdr.h"
#include "auth.h"
#include "clnt.h"
#include "rpc_msg.h"

#define NULL ((caddr_t)0)
#define MCALL_MSG_SIZE 24

/*
 * This is the "network" we will be moving stuff over.
 */
char _raw_buf[UDPMSGSIZE];

static char	mashl_callmsg[MCALL_MSG_SIZE];
static u_int	mcnt;

static int	clntraw_call();   /* clm 10/16/89 - no longer use the enum clnt_stat type */
static void		clntraw_abort();
static void		clntraw_geterr();
static bool_t		clntraw_freeres();
static void		clntraw_destroy();

static struct clnt_ops client_ops = {
	clntraw_call,
	clntraw_abort,
	clntraw_geterr,
	clntraw_freeres,
	clntraw_destroy
};

static CLIENT	client_object;
static XDR	xdr_stream;

void	svc_getreq();

/*
 * Create a client handle for memory based rpc.
 */
CLIENT *
clntraw_create(prog, vers)
	u_long prog;
	u_long vers;
{
	struct rpc_msg call_msg;
	XDR *xdrs = &xdr_stream;
	CLIENT	*client = &client_object;

	/*
	 * pre-serialize the staic part of the call msg and stash it away
	 */
	call_msg.rm_direction = CALL;
	call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
	call_msg.rm_call.cb_prog = prog;
	call_msg.rm_call.cb_vers = vers;
	xdrmem_create(xdrs, mashl_callmsg, MCALL_MSG_SIZE, XDR_ENCODE); 
	if (! xdr_callhdr(xdrs, &call_msg)) {
		printf("clnt_raw.c - Fatal header serialization error\n");
	}
	mcnt = XDR_GETPOS(xdrs);
	XDR_DESTROY(xdrs);

	/*
	 * Set xdrmem for client/server shared buffer
	 */
	xdrmem_create(xdrs, _raw_buf, UDPMSGSIZE, XDR_FREE);

	/*
	 * create client handle
	 */
	client->cl_ops = &client_ops;
	client->cl_auth = authnone_create();
	return (client);
}


/* clm 10/16/89 - no longer use the enum clnt_stat type */
static int 
clntraw_call(h, proc, xargs, argsp, xresults, resultsp, timeout)
	CLIENT *h;
	u_long proc;
	xdrproc_t xargs;
	caddr_t argsp;
	xdrproc_t xresults;
	caddr_t resultsp;
	struct timeval timeout;
{
#pragma unused(timeout)				/* 11/22/89 sbw */

	register XDR *xdrs = &xdr_stream;
	struct rpc_msg msg;
	int status;     /* clm 10/16/89 - no longer use the enum clnt_stat type */        
	struct rpc_err error;

call_again:
	/*
	 * send request
	 */
	xdrs->x_op = XDR_ENCODE;
	XDR_SETPOS(xdrs, 0);
	((struct rpc_msg *)mashl_callmsg)->rm_xid ++ ;
	if ((! XDR_PUTBYTES(xdrs, mashl_callmsg, mcnt)) ||
	    (! XDR_PUTLONG(xdrs, (long *)&proc)) ||
	    (! AUTH_MARSHALL(h->cl_auth, xdrs)) ||
	    (! (*xargs)(xdrs, argsp))) {
		return (RPC_CANTENCODEARGS);
	}
	(void)XDR_GETPOS(xdrs);  /* called just to cause overhead */

	/*
	 * We have to call server input routine here because this is
	 * all going on in one process. Yuk.
	 */
	svc_getreq(1);

	/*
	 * get results
	 */
	xdrs->x_op = XDR_DECODE;
	XDR_SETPOS(xdrs, 0);
	msg.acpted_rply.ar_verf = _null_auth;
	msg.acpted_rply.ar_results.where = resultsp;
	msg.acpted_rply.ar_results.proc = xresults;
	if (! xdr_replymsg(xdrs, &msg))
		return (RPC_CANTDECODERES);
	_seterr_reply(&msg, &error);
	status = error.re_status;

	if (status == RPC_SUCCESS) {
		if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
			status = RPC_AUTHERROR;
		}
	}  /* end successful completion */
	else {
		if (AUTH_REFRESH(h->cl_auth))
			goto call_again;
	}  /* end of unsuccessful completion */

	if (status == RPC_SUCCESS) {
		if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
			status = RPC_AUTHERROR;
		}
		if (msg.acpted_rply.ar_verf.oa_base != NULL) {
			xdrs->x_op = XDR_FREE;
			(void)xdr_opaque_auth(xdrs, &(msg.acpted_rply.ar_verf));
		}
	}

	return (status);
}

static void
clntraw_geterr()
{
}


static bool_t
clntraw_freeres(cl, xdr_res, res_ptr)
	CLIENT *cl;
	xdrproc_t xdr_res;
	caddr_t res_ptr;
{
#pragma unused(cl)				/* 11/22/89 sbw */

	register XDR *xdrs = &xdr_stream;

	xdrs->x_op = XDR_FREE;
	return ((*xdr_res)(xdrs, res_ptr));
}

static void
clntraw_abort()
{
}

static void
clntraw_destroy()
{
}
