3 * Client interface to pmap rpc service.
5 * Copyright (C) 1984, Sun Microsystems, Inc.
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8 * modification, are permitted provided that the following conditions are
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21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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38 #include <rpc/pmap_prot.h>
39 #include <rpc/pmap_clnt.h>
40 #include <sys/socket.h>
42 static const struct timeval timeout =
44 static const struct timeval tottimeout =
48 * Create a socket that is locally bound to a non-reserve port. For
49 * any failures, -1 is returned which will cause the RPC code to
54 __get_socket (struct sockaddr_in *saddr)
56 int so = __socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
60 struct sockaddr_in laddr;
61 socklen_t namelen = sizeof (laddr);
62 laddr.sin_family = AF_INET;
64 laddr.sin_addr.s_addr = htonl (INADDR_ANY);
66 int cc = __bind (so, (struct sockaddr *) &laddr, namelen);
67 if (__builtin_expect (cc < 0, 0))
74 cc = __connect (so, (struct sockaddr *) saddr, namelen);
75 if (__builtin_expect (cc < 0, 0))
83 * Find the mapped port for program,version.
84 * Calls the pmap service remotely to do the lookup.
85 * Returns 0 if no map exists.
88 pmap_getport (address, program, version, protocol)
89 struct sockaddr_in *address;
100 address->sin_port = htons (PMAPPORT);
101 if (protocol == IPPROTO_TCP)
103 /* Don't need a reserved port to get ports from the portmapper. */
104 socket = __get_socket(address);
107 client = INTUSE(clnttcp_create) (address, PMAPPROG, PMAPVERS, &socket,
108 RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
111 client = INTUSE(clntudp_bufcreate) (address, PMAPPROG, PMAPVERS, timeout,
112 &socket, RPCSMALLMSGSIZE,
114 if (client != (CLIENT *) NULL)
116 struct rpc_createerr *ce = &get_rpc_createerr ();
117 parms.pm_prog = program;
118 parms.pm_vers = version;
119 parms.pm_prot = protocol;
120 parms.pm_port = 0; /* not needed or used */
121 if (CLNT_CALL (client, PMAPPROC_GETPORT, (xdrproc_t)INTUSE(xdr_pmap),
122 (caddr_t)&parms, (xdrproc_t)INTUSE(xdr_u_short),
123 (caddr_t)&port, tottimeout) != RPC_SUCCESS)
125 ce->cf_stat = RPC_PMAPFAILURE;
126 clnt_geterr (client, &ce->cf_error);
130 ce->cf_stat = RPC_PROGNOTREGISTERED;
132 CLNT_DESTROY (client);
134 /* We only need to close the socket here if we opened it. */
136 (void) __close (socket);
137 address->sin_port = 0;
140 libc_hidden_def (pmap_getport)