xref: /openbsd-src/lib/libc/rpc/pmap_getmaps.c (revision 484854185150d40a092d9e7d24e2c43710eb6a83)

/*	$OpenBSD: pmap_getmaps.c,v 1.13 2015/09/02 06:47:19 deraadt Exp $ */

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

/*
 * pmap_getmap.c
 * Client interface to pmap rpc service.
 * contains pmap_getmaps, which is only tcp service involved
 */

#include <rpc/rpc.h>
#include <rpc/pmap_prot.h>
#include <rpc/pmap_clnt.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <net/if.h>
#include <sys/ioctl.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;

	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, PMAPPROC_DUMP, xdr_void, NULL, xdr_pmaplist,
		    &head, minutetimeout) != RPC_SUCCESS) {
			CLNT_DESTROY(client);
			return (NULL);
		}
		CLNT_DESTROY(client);
	}
	address->sin_port = 0;
	return (head);
}