3 * Client interface to pmap rpc service.
5 * Copyright (c) 2010, Oracle America, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials
16 * provided with the distribution.
17 * * Neither the name of the "Oracle America, Inc." nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
28 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <rpc/pmap_prot.h>
39 #include <rpc/pmap_clnt.h>
40 #include <sys/socket.h>
41 #include <shlib-compat.h>
44 * Create a socket that is locally bound to a non-reserve port. For
45 * any failures, -1 is returned which will cause the RPC code to
50 __get_socket (struct sockaddr_in
*saddr
)
52 int so
= __socket (AF_INET
, SOCK_STREAM
, IPPROTO_TCP
);
56 struct sockaddr_in laddr
;
57 socklen_t namelen
= sizeof (laddr
);
58 laddr
.sin_family
= AF_INET
;
60 laddr
.sin_addr
.s_addr
= htonl (INADDR_ANY
);
62 int cc
= __bind (so
, (struct sockaddr
*) &laddr
, namelen
);
63 if (__glibc_unlikely (cc
< 0))
70 cc
= __connect (so
, (struct sockaddr
*) saddr
, namelen
);
71 if (__glibc_unlikely (cc
< 0))
79 * Find the mapped port for program,version.
80 * Internal version with additional parameters.
81 * Calls the pmap service remotely to do the lookup.
82 * Returns 0 if no map exists.
86 __libc_rpc_getport (struct sockaddr_in
*address
, u_long program
,
87 u_long version
, u_int protocol
, time_t timeout_sec
,
88 time_t tottimeout_sec
)
90 const struct timeval timeout
= {timeout_sec
, 0};
91 const struct timeval tottimeout
= {tottimeout_sec
, 0};
99 address
->sin_port
= htons (PMAPPORT
);
100 if (protocol
== IPPROTO_TCP
)
102 /* Don't need a reserved port to get ports from the portmapper. */
103 socket
= __get_socket(address
);
106 client
= clnttcp_create (address
, PMAPPROG
, PMAPVERS
, &socket
,
107 RPCSMALLMSGSIZE
, RPCSMALLMSGSIZE
);
110 client
= clntudp_bufcreate (address
, PMAPPROG
, PMAPVERS
, timeout
,
111 &socket
, RPCSMALLMSGSIZE
, RPCSMALLMSGSIZE
);
112 if (client
!= (CLIENT
*) NULL
)
114 struct rpc_createerr
*ce
= &get_rpc_createerr ();
115 parms
.pm_prog
= program
;
116 parms
.pm_vers
= version
;
117 parms
.pm_prot
= protocol
;
118 parms
.pm_port
= 0; /* not needed or used */
119 if (CLNT_CALL (client
, PMAPPROC_GETPORT
, (xdrproc_t
)xdr_pmap
,
120 (caddr_t
)&parms
, (xdrproc_t
)xdr_u_short
,
121 (caddr_t
)&port
, tottimeout
) != RPC_SUCCESS
)
123 ce
->cf_stat
= RPC_PMAPFAILURE
;
124 clnt_geterr (client
, &ce
->cf_error
);
128 ce
->cf_stat
= RPC_PROGNOTREGISTERED
;
130 CLNT_DESTROY (client
);
132 /* We only need to close the socket here if we opened it. */
134 (void) __close (socket
);
135 address
->sin_port
= 0;
138 #ifdef EXPORT_RPC_SYMBOLS
139 libc_hidden_def (__libc_rpc_getport
)
141 libc_hidden_nolink_sunrpc (__libc_rpc_getport
, GLIBC_PRIVATE
)
146 * Find the mapped port for program,version.
147 * Calls the pmap service remotely to do the lookup.
148 * Returns 0 if no map exists.
151 pmap_getport (struct sockaddr_in
*address
, u_long program
, u_long version
,
154 return __libc_rpc_getport (address
, program
, version
, protocol
, 5, 60);
156 libc_hidden_nolink_sunrpc (pmap_getport
, GLIBC_2_0
)