pmap_clnt.c revision 261046 
1/*	$NetBSD: pmap_clnt.c,v 1.16 2000/07/06 03:10:34 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2009, Sun Microsystems, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 * - Redistributions of source code must retain the above copyright notice,
10 *   this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright notice,
12 *   this list of conditions and the following disclaimer in the documentation
13 *   and/or other materials provided with the distribution.
14 * - Neither the name of Sun Microsystems, Inc. nor the names of its
15 *   contributors may be used to endorse or promote products derived
16 *   from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#if defined(LIBC_SCCS) && !defined(lint)
32static char *sccsid2 = "@(#)pmap_clnt.c 1.37 87/08/11 Copyr 1984 Sun Micro";
33static char *sccsid = "@(#)pmap_clnt.c	2.2 88/08/01 4.0 RPCSRC";
34#endif
35#include <sys/cdefs.h>
36__FBSDID("$FreeBSD: stable/10/lib/libc/rpc/pmap_clnt.c 261046 2014-01-22 23:45:27Z mav $");
37
38/*
39 * pmap_clnt.c
40 * Client interface to pmap rpc service.
41 *
42 * Copyright (C) 1984, Sun Microsystems, Inc.
43 */
44
45#include "namespace.h"
46#include <sys/types.h>
47#include <sys/stat.h>
48#include <unistd.h>
49
50#include <rpc/rpc.h>
51#include <rpc/pmap_prot.h>
52#include <rpc/pmap_clnt.h>
53#include <rpc/nettype.h>
54#include <netinet/in.h>
55#include "un-namespace.h"
56
57#include <stdio.h>
58#include <stdlib.h>
59
60#include "rpc_com.h"
61
62bool_t
63pmap_set(u_long program, u_long version, int protocol, int port)
64{
65	bool_t rslt;
66	struct netbuf *na;
67	struct netconfig *nconf;
68	char buf[32];
69
70	if ((protocol != IPPROTO_UDP) && (protocol != IPPROTO_TCP)) {
71		return (FALSE);
72	}
73	nconf = __rpc_getconfip(protocol == IPPROTO_UDP ? "udp" : "tcp");
74	if (nconf == NULL) {
75		return (FALSE);
76	}
77	snprintf(buf, sizeof buf, "0.0.0.0.%d.%d",
78	    (((u_int32_t)port) >> 8) & 0xff, port & 0xff);
79	na = uaddr2taddr(nconf, buf);
80	if (na == NULL) {
81		freenetconfigent(nconf);
82		return (FALSE);
83	}
84	rslt = rpcb_set((rpcprog_t)program, (rpcvers_t)version, nconf, na);
85	free(na);
86	freenetconfigent(nconf);
87	return (rslt);
88}
89
90/*
91 * Remove the mapping between program, version and port.
92 * Calls the pmap service remotely to do the un-mapping.
93 */
94bool_t
95pmap_unset(u_long program, u_long version)
96{
97	struct netconfig *nconf;
98	bool_t udp_rslt = FALSE;
99	bool_t tcp_rslt = FALSE;
100
101	nconf = __rpc_getconfip("udp");
102	if (nconf != NULL) {
103		udp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
104		    nconf);
105		freenetconfigent(nconf);
106	}
107	nconf = __rpc_getconfip("tcp");
108	if (nconf != NULL) {
109		tcp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
110		    nconf);
111		freenetconfigent(nconf);
112	}
113	/*
114	 * XXX: The call may still succeed even if only one of the
115	 * calls succeeded.  This was the best that could be
116	 * done for backward compatibility.
117	 */
118	return (tcp_rslt || udp_rslt);
119}
120