pmap_getmaps.c

/*	$NetBSD: pmap_getmaps.c,v 1.16 2000/07/06 03:10:34 christos Exp $	*/

/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 2009, Sun Microsystems, 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 Sun Microsystems, 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.
 */

/*
 * pmap_getmap.c
 * Client interface to pmap rpc service.
 * contains pmap_getmaps, which is only tcp service involved
 *
 * Copyright (C) 1984, Sun Microsystems, Inc.
 */

#include "namespace.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>

#include <arpa/inet.h>
#include <net/if.h>

#include <assert.h>
#include <errno.h>
#include <netdb.h>
#include <stdio.h>
#include <unistd.h>

#include <rpc/rpc.h>
#include <rpc/pmap_prot.h>
#include <rpc/pmap_clnt.h>
#include "un-namespace.h"

#define NAMELEN 255
#define MAX_BROADCAST_SIZE 1400

/*
 * Get a copy of the current port maps.
 * Calls the pmap service remotely to do get the maps.
 */
struct pmaplist *
pmap_getmaps(struct sockaddr_in *address)
{
	struct pmaplist *head = NULL;
	int sock = -1;
	struct timeval minutetimeout;
	CLIENT *client;

	assert(address != NULL);

	minutetimeout.tv_sec = 60;
	minutetimeout.tv_usec = 0;
	address->sin_port = htons(PMAPPORT);
	client = clnttcp_create(address, PMAPPROG,
	    PMAPVERS, &sock, 50, 500);
	if (client != NULL) {
		if (CLNT_CALL(client, (rpcproc_t)PMAPPROC_DUMP,
		    (xdrproc_t)xdr_void, NULL,
		    (xdrproc_t)xdr_pmaplist, &head, minutetimeout) !=
		    RPC_SUCCESS) {
			clnt_perror(client, "pmap_getmaps rpc problem");
		}
		CLNT_DESTROY(client);
	}
	address->sin_port = 0;
	return (head);
}