/* @(#)pmap_getport.c	2.2 88/08/01 4.0 RPCSRC */

/*

 * Copyright (c) 2010, Oracle America, Inc.

 *

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are met:

 *

 *     * Redistributions of source code must retain the above copyright

 *       notice, this list of conditions and the following disclaimer.

 *

 *     * Redistributions in binary form must reproduce the above copyright

 *       notice, this list of conditions and the following disclaimer in

 *       the documentation and/or other materials provided with the

 *       distribution.

 *

 *     * Neither the name of the "Oracle America, Inc." nor the names of

 *       its contributors may be used to endorse or promote products

 *       derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED

 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED

 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#if !defined(lint) && defined(SCCSIDS)

static char sccsid[] = "@(#)pmap_getport.c 1.9 87/08/11 Copyr 1984 Sun Micro";

#endif

/*

 * pmap_getport.c

 * Client interface to pmap rpc service.

 */

#include <unistd.h>

#include <gssrpc/rpc.h>

#include <gssrpc/pmap_prot.h>

#include <gssrpc/pmap_clnt.h>

#include <sys/socket.h>

#ifdef OSF1

#include <net/route.h>

#include <sys/mbuf.h>

#endif

#include <net/if.h>

static struct timeval timeout = { 5, 0 };

static struct timeval tottimeout = { 60, 0 };

/*

 * Find the mapped port for program,version.

 * Calls the pmap service remotely to do the lookup.

 * Returns 0 if no map exists.

 */

u_short

pmap_getport(

	struct sockaddr_in *address,

	rpcprog_t program,

	rpcvers_t version,

	rpcprot_t protocol)

{

	unsigned short port = 0;

	int sock = -1;

	CLIENT *client;

	struct pmap parms;

	address->sin_port = htons(PMAPPORT);

	client = clntudp_bufcreate(address, PMAPPROG,

	    PMAPVERS, timeout, &sock, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);

	if (client != (CLIENT *)NULL) {

		parms.pm_prog = program;

		parms.pm_vers = version;

		parms.pm_prot = protocol;

		parms.pm_port = 0;  /* not needed or used */

		if (CLNT_CALL(client, PMAPPROC_GETPORT, xdr_pmap, &parms,

		    xdr_u_short, &port, tottimeout) != RPC_SUCCESS){

			rpc_createerr.cf_stat = RPC_PMAPFAILURE;

			clnt_geterr(client, &rpc_createerr.cf_error);

		} else if (port == 0) {

			rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED;

		}

		CLNT_DESTROY(client);

	}

	(void)close(sock);

	address->sin_port = 0;

	return (port);

}