source: rtems-libbsd/freebsd/lib/libc/rpc/pmap_getport.c @ f41a394

#include <machine/rtems-bsd-user-space.h>

/*      $NetBSD: pmap_getport.c,v 1.16 2000/07/06 03:10:34 christos Exp $       */

/*-
 * Copyright (c) 2009, Sun Microsystems, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * - Redistributions of source code must retain the above copyright notice, 
 *   this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice, 
 *   this list of conditions and the following disclaimer in the documentation 
 *   and/or other materials provided with the distribution.
 * - Neither the name of Sun Microsystems, Inc. nor the names of its 
 *   contributors may be used to endorse or promote products derived 
 *   from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char *sccsid2 = "from: @(#)pmap_getport.c 1.9 87/08/11 Copyr 1984 Sun Micro";
static char *sccsid = "from: @(#)pmap_getport.c 2.2 88/08/01 4.0 RPCSRC";
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

/*
 * pmap_getport.c
 * Client interface to pmap rpc service.
 *
 * Copyright (C) 1984, Sun Microsystems, Inc.
 */

#include "namespace.h"
#include <sys/types.h>
#include <sys/socket.h>

#include <arpa/inet.h>
#include <net/if.h>

#include <assert.h>
#include <unistd.h>

#include <rpc/rpc.h>
#include <rpc/pmap_prot.h>
#include <rpc/pmap_clnt.h>
#include "un-namespace.h"

static const struct timeval timeout = { 5, 0 };
static const struct timeval tottimeout = { 60, 0 };

/*
 * Find the mapped port for program,version.
 * Calls the pmap service remotely to do the lookup.
 * Returns 0 if no map exists.
 */
u_short
pmap_getport(address, program, version, protocol)
        struct sockaddr_in *address;
        u_long program;
        u_long version;
        u_int protocol;
{
        u_short port = 0;
        int sock = -1;
        CLIENT *client;
        struct pmap parms;

        assert(address != NULL);

        address->sin_port = htons(PMAPPORT);
        client = clntudp_bufcreate(address, PMAPPROG,
            PMAPVERS, timeout, &sock, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
        if (client != NULL) {
                parms.pm_prog = program;
                parms.pm_vers = version;
                parms.pm_prot = protocol;
                parms.pm_port = 0;  /* not needed or used */
                if (CLNT_CALL(client, (rpcproc_t)PMAPPROC_GETPORT,
                    (xdrproc_t)xdr_pmap,
                    &parms, (xdrproc_t)xdr_u_short, &port, tottimeout) !=
                    RPC_SUCCESS){
                        rpc_createerr.cf_stat = RPC_PMAPFAILURE;
                        clnt_geterr(client, &rpc_createerr.cf_error);
                } else if (port == 0) {
                        rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED;
                }
                CLNT_DESTROY(client);
        }
        address->sin_port = 0;
        return (port);
}