/*
 * 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.
 */


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

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

#include <rpc/rpc.h>
#include <rpc/pmap_prot.h>
#include <rpc/pmap_clnt.h>
#include <rpc/nettype.h>
#include <netinet/in.h>

#include <stdio.h>
#include <stdlib.h>

#include "rpc_com.h"

bool_t
pmap_set(u_long program, u_long version, int protocol, int port)
{
	bool_t rslt;
	struct netbuf *na;
	struct netconfig *nconf;
	char buf[32];

	if ((protocol != IPPROTO_UDP) && (protocol != IPPROTO_TCP)) {
		return (FALSE);
	}
	nconf = __rpc_getconfip(protocol == IPPROTO_UDP ? "udp" : "tcp");
	if (nconf == NULL) {
		return (FALSE);
	}
	snprintf(buf, sizeof buf, "0.0.0.0.%d.%d", 
	    (((u_int32_t)port) >> 8) & 0xff, port & 0xff);
	na = uaddr2taddr(nconf, buf);
	if (na == NULL) {
		freenetconfigent(nconf);
		return (FALSE);
	}
	rslt = rpcb_set((rpcprog_t)program, (rpcvers_t)version, nconf, na);
	free(na);
	freenetconfigent(nconf);
	return (rslt);
}

/*
 * Remove the mapping between program, version and port.
 * Calls the pmap service remotely to do the un-mapping.
 */
bool_t
pmap_unset(u_long program, u_long version)
{
	struct netconfig *nconf;
	bool_t udp_rslt = FALSE;
	bool_t tcp_rslt = FALSE;

	nconf = __rpc_getconfip("udp");
	if (nconf != NULL) {
		udp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
		    nconf);
		freenetconfigent(nconf);
	}
	nconf = __rpc_getconfip("tcp");
	if (nconf != NULL) {
		tcp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
		    nconf);
		freenetconfigent(nconf);
	}
	/*
	 * XXX: The call may still succeed even if only one of the
	 * calls succeeded.  This was the best that could be
	 * done for backward compatibility.
	 */
	return (tcp_rslt || udp_rslt);
}