1/*
2 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
7 * Reserved.  This file contains Original Code and/or Modifications of
8 * Original Code as defined in and that are subject to the Apple Public
9 * Source License Version 1.1 (the "License").  You may not use this file
10 * except in compliance with the License.  Please obtain a copy of the
11 * License at http://www.apple.com/publicsource and read it before using
12 * this file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
19 * License for the specific language governing rights and limitations
20 * under the License.
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24/*
25 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
26 * unrestricted use provided that this legend is included on all tape
27 * media and as a part of the software program in whole or part.  Users
28 * may copy or modify Sun RPC without charge, but are not authorized
29 * to license or distribute it to anyone else except as part of a product or
30 * program developed by the user.
31 *
32 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
33 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
34 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
35 *
36 * Sun RPC is provided with no support and without any obligation on the
37 * part of Sun Microsystems, Inc. to assist in its use, correction,
38 * modification or enhancement.
39 *
40 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
41 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
42 * OR ANY PART THEREOF.
43 *
44 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
45 * or profits or other special, indirect and consequential damages, even if
46 * Sun has been advised of the possibility of such damages.
47 *
48 * Sun Microsystems, Inc.
49 * 2550 Garcia Avenue
50 * Mountain View, California  94043
51 */
52
53#if defined(LIBC_SCCS) && !defined(lint)
54/*static char *sccsid = "from: @(#)clnt_generic.c 1.4 87/08/11 (C) 1987 SMI";*/
55/*static char *sccsid = "from: @(#)clnt_generic.c	2.2 88/08/01 4.0 RPCSRC";*/
56static char *rcsid = "$Id: clnt_generic.c,v 1.3 2002/02/19 20:36:22 epeyton Exp $";
57#endif
58
59/*
60 * Copyright (C) 1987, Sun Microsystems, Inc.
61 */
62#include <string.h>
63#include <rpc/rpc.h>
64#include <sys/socket.h>
65#include <sys/errno.h>
66#include <netdb.h>
67
68/*
69 * Generic client creation: takes (hostname, program-number, protocol) and
70 * returns client handle. Default options are set, which the user can
71 * change using the rpc equivalent of ioctl()'s.
72 */
73CLIENT *
74clnt_create(hostname, prog, vers, proto)
75#ifdef __LP64__
76	char *hostname;
77	uint32_t prog;
78	uint32_t vers;
79	char *proto;
80#else
81	char *hostname;
82	u_long prog;
83	u_long vers;
84	char *proto;
85#endif
86{
87	struct hostent *h;
88	struct protoent *p;
89	struct sockaddr_in sin;
90	int sock;
91	struct timeval tv;
92	CLIENT *client;
93
94	h = gethostbyname(hostname);
95	if (h == NULL) {
96		rpc_createerr.cf_stat = RPC_UNKNOWNHOST;
97		return (NULL);
98	}
99	if (h->h_addrtype != AF_INET) {
100		/*
101		 * Only support INET for now
102		 */
103		rpc_createerr.cf_stat = RPC_SYSTEMERROR;
104		rpc_createerr.cf_error.re_errno = EAFNOSUPPORT;
105		return (NULL);
106	}
107	bzero((char *)&sin, sizeof sin);
108	sin.sin_family = h->h_addrtype;
109	sin.sin_port = 0;
110	bcopy(h->h_addr, (char*)&sin.sin_addr, h->h_length);
111	p = getprotobyname(proto);
112	if (p == NULL) {
113		rpc_createerr.cf_stat = RPC_UNKNOWNPROTO;
114		rpc_createerr.cf_error.re_errno = EPFNOSUPPORT;
115		return (NULL);
116	}
117	sock = RPC_ANYSOCK;
118	switch (p->p_proto) {
119	case IPPROTO_UDP:
120		tv.tv_sec = 5;
121		tv.tv_usec = 0;
122		client = clntudp_create(&sin, prog, vers, tv, &sock);
123		if (client == NULL) {
124			return (NULL);
125		}
126		break;
127	case IPPROTO_TCP:
128		client = clnttcp_create(&sin, prog, vers, &sock, 0, 0);
129		if (client == NULL) {
130			return (NULL);
131		}
132		break;
133	default:
134		rpc_createerr.cf_stat = RPC_SYSTEMERROR;
135		rpc_createerr.cf_error.re_errno = EPFNOSUPPORT;
136		return (NULL);
137	}
138	return (client);
139}
140