pmap_clnt.c revision 330897 
1/*	$NetBSD: pmap_clnt.c,v 1.16 2000/07/06 03:10:34 christos Exp $	*/
2
3/*-
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 * Copyright (c) 2009, Sun Microsystems, Inc.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 * - Redistributions of source code must retain the above copyright notice,
12 *   this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above copyright notice,
14 *   this list of conditions and the following disclaimer in the documentation
15 *   and/or other materials provided with the distribution.
16 * - Neither the name of Sun Microsystems, 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 "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#if defined(LIBC_SCCS) && !defined(lint)
34static char *sccsid2 = "@(#)pmap_clnt.c 1.37 87/08/11 Copyr 1984 Sun Micro";
35static char *sccsid = "@(#)pmap_clnt.c	2.2 88/08/01 4.0 RPCSRC";
36#endif
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD: stable/11/lib/libc/rpc/pmap_clnt.c 330897 2018-03-14 03:19:51Z eadler $");
39
40/*
41 * pmap_clnt.c
42 * Client interface to pmap rpc service.
43 *
44 * Copyright (C) 1984, Sun Microsystems, Inc.
45 */
46
47#include "namespace.h"
48#include <sys/types.h>
49#include <sys/stat.h>
50#include <unistd.h>
51
52#include <rpc/rpc.h>
53#include <rpc/pmap_prot.h>
54#include <rpc/pmap_clnt.h>
55#include <rpc/nettype.h>
56#include <netinet/in.h>
57#include "un-namespace.h"
58
59#include <stdio.h>
60#include <stdlib.h>
61
62#include "rpc_com.h"
63
64bool_t
65pmap_set(u_long program, u_long version, int protocol, int port)
66{
67	bool_t rslt;
68	struct netbuf *na;
69	struct netconfig *nconf;
70	char buf[32];
71
72	if ((protocol != IPPROTO_UDP) && (protocol != IPPROTO_TCP)) {
73		return (FALSE);
74	}
75	nconf = __rpc_getconfip(protocol == IPPROTO_UDP ? "udp" : "tcp");
76	if (nconf == NULL) {
77		return (FALSE);
78	}
79	snprintf(buf, sizeof buf, "0.0.0.0.%d.%d",
80	    (((u_int32_t)port) >> 8) & 0xff, port & 0xff);
81	na = uaddr2taddr(nconf, buf);
82	if (na == NULL) {
83		freenetconfigent(nconf);
84		return (FALSE);
85	}
86	rslt = rpcb_set((rpcprog_t)program, (rpcvers_t)version, nconf, na);
87	free(na);
88	freenetconfigent(nconf);
89	return (rslt);
90}
91
92/*
93 * Remove the mapping between program, version and port.
94 * Calls the pmap service remotely to do the un-mapping.
95 */
96bool_t
97pmap_unset(u_long program, u_long version)
98{
99	struct netconfig *nconf;
100	bool_t udp_rslt = FALSE;
101	bool_t tcp_rslt = FALSE;
102
103	nconf = __rpc_getconfip("udp");
104	if (nconf != NULL) {
105		udp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
106		    nconf);
107		freenetconfigent(nconf);
108	}
109	nconf = __rpc_getconfip("tcp");
110	if (nconf != NULL) {
111		tcp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
112		    nconf);
113		freenetconfigent(nconf);
114	}
115	/*
116	 * XXX: The call may still succeed even if only one of the
117	 * calls succeeded.  This was the best that could be
118	 * done for backward compatibility.
119	 */
120	return (tcp_rslt || udp_rslt);
121}
122