getrpcport.c revision 92990 
1/*	$NetBSD: getrpcport.c,v 1.16 2000/01/22 22:19:18 mycroft Exp $	*/
2
3/*
4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
5 * unrestricted use provided that this legend is included on all tape
6 * media and as a part of the software program in whole or part.  Users
7 * may copy or modify Sun RPC without charge, but are not authorized
8 * to license or distribute it to anyone else except as part of a product or
9 * program developed by the user.
10 *
11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
14 *
15 * Sun RPC is provided with no support and without any obligation on the
16 * part of Sun Microsystems, Inc. to assist in its use, correction,
17 * modification or enhancement.
18 *
19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
21 * OR ANY PART THEREOF.
22 *
23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
24 * or profits or other special, indirect and consequential damages, even if
25 * Sun has been advised of the possibility of such damages.
26 *
27 * Sun Microsystems, Inc.
28 * 2550 Garcia Avenue
29 * Mountain View, California  94043
30 */
31
32#include <sys/cdefs.h>
33#if defined(LIBC_SCCS) && !defined(lint)
34static char *sccsid = "@(#)getrpcport.c 1.3 87/08/11 SMI";
35static char *sccsid = "@(#)getrpcport.c	2.1 88/07/29 4.0 RPCSRC";
36#endif
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD: head/lib/libc/rpc/getrpcport.c 92990 2002-03-22 23:18:37Z obrien $");
39
40/*
41 * Copyright (c) 1985 by Sun Microsystems, Inc.
42 */
43
44#include "namespace.h"
45#include <sys/types.h>
46#include <sys/socket.h>
47
48#include <assert.h>
49#include <netdb.h>
50#include <stdio.h>
51#include <string.h>
52
53#include <rpc/rpc.h>
54#include <rpc/pmap_clnt.h>
55#include "un-namespace.h"
56
57int
58getrpcport(host, prognum, versnum, proto)
59	char *host;
60	int prognum, versnum, proto;
61{
62	struct sockaddr_in addr;
63	struct hostent *hp;
64
65	assert(host != NULL);
66
67	if ((hp = gethostbyname(host)) == NULL)
68		return (0);
69	memset(&addr, 0, sizeof(addr));
70	addr.sin_len = sizeof(struct sockaddr_in);
71	addr.sin_family = AF_INET;
72	addr.sin_port =  0;
73	if (hp->h_length > addr.sin_len)
74		hp->h_length = addr.sin_len;
75	memcpy(&addr.sin_addr.s_addr, hp->h_addr, (size_t)hp->h_length);
76	/* Inconsistent interfaces need casts! :-( */
77	return (pmap_getport(&addr, (u_long)prognum, (u_long)versnum,
78	    (u_int)proto));
79}
80