/*      $NetBSD: pmap_clnt.c,v 1.20 2024/01/23 17:24:38 christos Exp $  */

/*
* Copyright (c) 2010, Oracle America, Inc.
*
* 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 the "Oracle America, 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.
*/

#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char *sccsid = "@(#)pmap_clnt.c 1.37 87/08/11 Copyr 1984 Sun Micro";
static char *sccsid = "@(#)pmap_clnt.c  2.2 88/08/01 4.0 RPCSRC";
#else
__RCSID("$NetBSD: pmap_clnt.c,v 1.20 2024/01/23 17:24:38 christos Exp $");
#endif
#endif

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

#include "namespace.h"
#include "reentrant.h"
#include <unistd.h>

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

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

#include "rpc_internal.h"

#ifdef __weak_alias
__weak_alias(pmap_set,_pmap_set)
__weak_alias(pmap_unset,_pmap_unset)
#endif

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);
}