/*      $NetBSD: getrpcport.c,v 1.18 2013/03/11 20:19:29 tron 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 = "@(#)getrpcport.c 1.3 87/08/11 SMI";
static char *sccsid = "@(#)getrpcport.c 2.1 88/07/29 4.0 RPCSRC";
#else
__RCSID("$NetBSD: getrpcport.c,v 1.18 2013/03/11 20:19:29 tron Exp $");
#endif
#endif

/*
* Copyright (c) 1985 by Sun Microsystems, Inc.
*/

#include "namespace.h"

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

#include <assert.h>
#include <netdb.h>
#include <stdio.h>
#include <string.h>

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

#ifdef __weak_alias
__weak_alias(getrpcport,_getrpcport)
#endif

int
getrpcport(char *host, int prognum, int versnum, int proto)
{
       struct sockaddr_in addr;
       struct hostent *hp;

       _DIAGASSERT(host != NULL);

       if ((hp = gethostbyname(host)) == NULL)
               return (0);
       memset(&addr, 0, sizeof(addr));
       addr.sin_len = sizeof(struct sockaddr_in);
       addr.sin_family = AF_INET;
       addr.sin_port =  0;
       if (hp->h_length > addr.sin_len)
               hp->h_length = addr.sin_len;
       memcpy(&addr.sin_addr.s_addr, hp->h_addr, (size_t)hp->h_length);
       /* Inconsistent interfaces need casts! :-( */
       return (pmap_getport(&addr, (u_long)prognum, (u_long)versnum,
           (u_int)proto));
}