/*
 *	$Id: clnt_generic.c,v 4.2 1994/09/29 23:48:50 jraja Exp $
 *
 *	Copyright © 1994 AmiTCP/IP Group,
 *			 Network Solutions Development Inc.
 *			 All rights reserved.
 */

/* @(#)clnt_generic.c   2.2 88/08/01 4.0 RPCSRC */
#if !defined(lint) && defined(SCCSIDS)
static char sccsid[] = "@(#)clnt_generic.c 1.4 87/08/11 (C) 1987 SMI";
#endif
/*
 * Copyright (C) 1987, Sun Microsystems, Inc.
 */
#ifdef AMITCP
#include <proto/socket.h>
#endif
#include <sys/param.h>
#include <rpc/rpc.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <netdb.h>

/*
 * Generic client creation: takes (hostname, program-number, protocol) and
 * returns client handle. Default options are set, which the user can
 * change using the rpc equivalent of ioctl()'s.
 */
CLIENT *
clnt_create(hostname, prog, vers, proto)
	char *hostname;
	u_long prog;
	u_long vers;
	char *proto;
{
	struct hostent *h;
	struct protoent *p;
	struct sockaddr_in sin;
	int sock;
	struct timeval tv;
	CLIENT *client;

	h = gethostbyname(hostname);
	if (h == NULL) {
		rpc_createerr.cf_stat = RPC_UNKNOWNHOST;
		return (NULL);
	}
	if (h->h_addrtype != AF_INET) {
		/*
		 * Only support INET for now
		 */
		rpc_createerr.cf_stat = RPC_SYSTEMERROR;
		rpc_createerr.cf_error.re_errno = EAFNOSUPPORT;
		return (NULL);
	}
	sin.sin_family = h->h_addrtype;
	sin.sin_port = 0;
	bzero(sin.sin_zero, sizeof(sin.sin_zero));
	bcopy(h->h_addr, (char*)&sin.sin_addr, h->h_length);
	p = getprotobyname(proto);
	if (p == NULL) {
		rpc_createerr.cf_stat = RPC_UNKNOWNPROTO;
		rpc_createerr.cf_error.re_errno = EPFNOSUPPORT;
		return (NULL);
	}
	sock = RPC_ANYSOCK;
	switch (p->p_proto) {
	case IPPROTO_UDP:
		tv.tv_sec = 5;
		tv.tv_usec = 0;
		client = clntudp_create(&sin, prog, vers, tv, &sock);
		if (client == NULL) {
			return (NULL);
		}
		tv.tv_sec = 25;
		clnt_control(client, CLSET_TIMEOUT, (caddr_t)&tv);
		break;
	case IPPROTO_TCP:
		client = clnttcp_create(&sin, prog, vers, &sock, 0, 0);
		if (client == NULL) {
			return (NULL);
		}
		tv.tv_sec = 25;
		tv.tv_usec = 0;
		clnt_control(client, CLSET_TIMEOUT, (caddr_t)&tv);
		break;
	default:
		rpc_createerr.cf_stat = RPC_SYSTEMERROR;
		rpc_createerr.cf_error.re_errno = EPFNOSUPPORT;
		return (NULL);
	}
	return (client);
}