1/*	$NetBSD: pmap_clnt.c,v 1.18 2003/01/18 11:29:05 thorpej 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#include <sys/cdefs.h>
35#if defined(LIBC_SCCS) && !defined(lint)
36#if 0
37static char *sccsid = "@(#)pmap_clnt.c 1.37 87/08/11 Copyr 1984 Sun Micro";
38static char *sccsid = "@(#)pmap_clnt.c	2.2 88/08/01 4.0 RPCSRC";
39#else
40__RCSID("$NetBSD: pmap_clnt.c,v 1.18 2003/01/18 11:29:05 thorpej Exp $");
41#endif
42#endif
43
44/*
45 * pmap_clnt.c
46 * Client interface to pmap rpc service.
47 *
48 * Copyright (C) 1984, Sun Microsystems, Inc.
49 */
50
51#include "namespace.h"
52
53#include <unistd.h>
54
55#include <rpc/rpc.h>
56#include <rpc/pmap_prot.h>
57#include <rpc/pmap_clnt.h>
58#include <rpc/nettype.h>
59
60#include <stdio.h>
61#include <stdlib.h>
62
63#include "rpc_internal.h"
64
65#ifdef __weak_alias
66__weak_alias(pmap_set,_pmap_set)
67__weak_alias(pmap_unset,_pmap_unset)
68#endif
69
70bool_t
71pmap_set(u_long program, u_long version, int protocol, int port)
72{
73	bool_t rslt;
74	struct netbuf *na;
75	struct netconfig *nconf;
76	char buf[32];
77
78	if ((protocol != IPPROTO_UDP) && (protocol != IPPROTO_TCP)) {
79		return (FALSE);
80	}
81	nconf = __rpc_getconfip(protocol == IPPROTO_UDP ? "udp" : "tcp");
82	if (nconf == NULL) {
83		return (FALSE);
84	}
85	snprintf(buf, sizeof buf, "0.0.0.0.%d.%d",
86	    (((u_int32_t)port) >> 8) & 0xff, port & 0xff);
87	na = uaddr2taddr(nconf, buf);
88	if (na == NULL) {
89		freenetconfigent(nconf);
90		return (FALSE);
91	}
92	rslt = rpcb_set((rpcprog_t)program, (rpcvers_t)version, nconf, na);
93	free(na);
94	freenetconfigent(nconf);
95	return (rslt);
96}
97
98/*
99 * Remove the mapping between program, version and port.
100 * Calls the pmap service remotely to do the un-mapping.
101 */
102bool_t
103pmap_unset(u_long program, u_long version)
104{
105	struct netconfig *nconf;
106	bool_t udp_rslt = FALSE;
107	bool_t tcp_rslt = FALSE;
108
109	nconf = __rpc_getconfip("udp");
110	if (nconf != NULL) {
111		udp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
112		    nconf);
113		freenetconfigent(nconf);
114	}
115	nconf = __rpc_getconfip("tcp");
116	if (nconf != NULL) {
117		tcp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
118		    nconf);
119		freenetconfigent(nconf);
120	}
121	/*
122	 * XXX: The call may still succeed even if only one of the
123	 * calls succeeded.  This was the best that could be
124	 * done for backward compatibility.
125	 */
126	return (tcp_rslt || udp_rslt);
127}
128