pmap_getmaps.c revision 1.11 
1/*	$OpenBSD: pmap_getmaps.c,v 1.11 2010/09/01 14:43:34 millert Exp $ */
2
3/*
4 * Copyright (c) 2010, Oracle America, Inc.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
9 *
10 *     * Redistributions of source code must retain the above copyright
11 *       notice, this list of conditions and the following disclaimer.
12 *     * Redistributions in binary form must reproduce the above
13 *       copyright notice, this list of conditions and the following
14 *       disclaimer in the documentation and/or other materials
15 *       provided with the distribution.
16 *     * Neither the name of the "Oracle America, Inc." nor the names of its
17 *       contributors may be used to endorse or promote products derived
18 *       from this software without specific prior written permission.
19 *
20 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25 *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
27 *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30 *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34/*
35 * pmap_getmap.c
36 * Client interface to pmap rpc service.
37 * contains pmap_getmaps, which is only tcp service involved
38 */
39
40#include <rpc/rpc.h>
41#include <rpc/pmap_prot.h>
42#include <rpc/pmap_clnt.h>
43#include <sys/socket.h>
44#include <netdb.h>
45#include <stdio.h>
46#include <errno.h>
47#include <unistd.h>
48#include <net/if.h>
49#include <sys/ioctl.h>
50#define NAMELEN 255
51#define MAX_BROADCAST_SIZE 1400
52
53/*
54 * Get a copy of the current port maps.
55 * Calls the pmap service remotely to do get the maps.
56 */
57struct pmaplist *
58pmap_getmaps(struct sockaddr_in *address)
59{
60	struct pmaplist *head = NULL;
61	int sock = -1;
62	struct timeval minutetimeout;
63	CLIENT *client;
64
65	minutetimeout.tv_sec = 60;
66	minutetimeout.tv_usec = 0;
67	address->sin_port = htons(PMAPPORT);
68	client = clnttcp_create(address, PMAPPROG,
69	    PMAPVERS, &sock, 50, 500);
70	if (client != NULL) {
71		if (CLNT_CALL(client, PMAPPROC_DUMP, xdr_void, NULL, xdr_pmaplist,
72		    &head, minutetimeout) != RPC_SUCCESS) {
73			clnt_perror(client, "pmap_getmaps rpc problem");
74		}
75		CLNT_DESTROY(client);
76	}
77	if (sock != -1)
78		(void)close(sock);
79	address->sin_port = 0;
80	return (head);
81}
82