1 /* $OpenBSD: pmap_clnt.c,v 1.19 2015/09/13 15:36:56 guenther 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_clnt.c
36 * Client interface to pmap rpc service.
37 */
38
39 #include <unistd.h>
40 #include <errno.h>
41 #include <rpc/rpc.h>
42 #include <rpc/pmap_prot.h>
43 #include <rpc/pmap_clnt.h>
44
45 static struct timeval timeout = { 5, 0 };
46 static struct timeval tottimeout = { 60, 0 };
47
48 /*
49 * Set a mapping between program,version and port.
50 * Calls the pmap service remotely to do the mapping.
51 */
52 bool_t
pmap_set(u_long program,u_long version,u_int protocol,int iport)53 pmap_set(u_long program, u_long version, u_int protocol, int iport)
54 {
55 struct sockaddr_in myaddress;
56 int sock = -1;
57 CLIENT *client;
58 struct pmap parms;
59 bool_t rslt;
60 int save_errno;
61 u_short port = iport;
62
63 if (get_myaddress(&myaddress) != 0)
64 return (FALSE);
65 myaddress.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
66 client = clntudp_bufcreate(&myaddress, PMAPPROG, PMAPVERS,
67 timeout, &sock, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
68 if (client == NULL)
69 return (FALSE);
70 parms.pm_prog = program;
71 parms.pm_vers = version;
72 parms.pm_prot = protocol;
73 parms.pm_port = port;
74 if (CLNT_CALL(client, PMAPPROC_SET, xdr_pmap, &parms, xdr_bool, &rslt,
75 tottimeout) != RPC_SUCCESS) {
76 save_errno = errno;
77 rslt = FALSE;
78 } else
79 save_errno = errno;
80 CLNT_DESTROY(client);
81 errno = save_errno;
82 return (rslt);
83 }
84 DEF_WEAK(pmap_set);
85
86 /*
87 * Remove the mapping between program,version and port.
88 * Calls the pmap service remotely to do the un-mapping.
89 */
90 bool_t
pmap_unset(u_long program,u_long version)91 pmap_unset(u_long program, u_long version)
92 {
93 struct sockaddr_in myaddress;
94 int sock = -1;
95 CLIENT *client;
96 struct pmap parms;
97 bool_t rslt;
98
99 if (get_myaddress(&myaddress) != 0)
100 return (FALSE);
101 myaddress.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
102 client = clntudp_bufcreate(&myaddress, PMAPPROG, PMAPVERS,
103 timeout, &sock, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
104 if (client == NULL)
105 return (FALSE);
106 parms.pm_prog = program;
107 parms.pm_vers = version;
108 parms.pm_port = parms.pm_prot = 0;
109 CLNT_CALL(client, PMAPPROC_UNSET, xdr_pmap, &parms, xdr_bool, &rslt,
110 tottimeout);
111 CLNT_DESTROY(client);
112 return (rslt);
113 }
114 DEF_WEAK(pmap_unset);
115