xref: /freebsd/lib/libc/rpc/getrpcport.c (revision c3aac50f284c6cca5b4f2eb46aaa13812cb8b630)
1 /*
2  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3  * unrestricted use provided that this legend is included on all tape
4  * media and as a part of the software program in whole or part.  Users
5  * may copy or modify Sun RPC without charge, but are not authorized
6  * to license or distribute it to anyone else except as part of a product or
7  * program developed by the user.
8  *
9  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12  *
13  * Sun RPC is provided with no support and without any obligation on the
14  * part of Sun Microsystems, Inc. to assist in its use, correction,
15  * modification or enhancement.
16  *
17  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19  * OR ANY PART THEREOF.
20  *
21  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22  * or profits or other special, indirect and consequential damages, even if
23  * Sun has been advised of the possibility of such damages.
24  *
25  * Sun Microsystems, Inc.
26  * 2550 Garcia Avenue
27  * Mountain View, California  94043
28  */
29 
30 #if defined(LIBC_SCCS) && !defined(lint)
31 /*static char *sccsid = "from: @(#)getrpcport.c 1.3 87/08/11 SMI";*/
32 /*static char *sccsid = "from: @(#)getrpcport.c	2.1 88/07/29 4.0 RPCSRC";*/
33 static char *rcsid = "$FreeBSD$";
34 #endif
35 
36 /*
37  * Copyright (c) 1985 by Sun Microsystems, Inc.
38  */
39 
40 #include <stdio.h>
41 #include <string.h>
42 #include <rpc/rpc.h>
43 #include <rpc/pmap_clnt.h>
44 #include <netdb.h>
45 #include <sys/socket.h>
46 
47 int
48 getrpcport(host, prognum, versnum, proto)
49 	char *host;
50 	int prognum, versnum, proto;
51 {
52 	struct sockaddr_in addr;
53 	struct hostent *hp;
54 
55 	if ((hp = gethostbyname(host)) == NULL)
56 		return (0);
57 	memset(&addr, 0, sizeof(addr));
58 	addr.sin_len = sizeof(struct sockaddr_in);
59 	addr.sin_family = AF_INET;
60 	addr.sin_port =  0;
61 	memcpy((char *)&addr.sin_addr, hp->h_addr, hp->h_length);
62 	return (pmap_getport(&addr, prognum, versnum, proto));
63 }
64