1 /*********************************************************************
2 * RPC for the Windows NT Operating System
3 * 1993 by Martin F. Gergeleit
4 * Users may use, copy or modify Sun RPC for the Windows NT Operating
5 * System according to the Sun copyright below.
7 * RPC for the Windows NT Operating System COMES WITH ABSOLUTELY NO
8 * WARRANTY, NOR WILL I BE LIABLE FOR ANY DAMAGES INCURRED FROM THE
9 * USE OF. USE ENTIRELY AT YOUR OWN RISK!!!
10 *********************************************************************/
12 /* @(#)clnt_simple.c 2.2 88/08/01 4.0 RPCSRC */
14 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
15 * unrestricted use provided that this legend is included on all tape
16 * media and as a part of the software program in whole or part. Users
17 * may copy or modify Sun RPC without charge, but are not authorized
18 * to license or distribute it to anyone else except as part of a product or
19 * program developed by the user.
21 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
22 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
25 * Sun RPC is provided with no support and without any obligation on the
26 * part of Sun Microsystems, Inc. to assist in its use, correction,
27 * modification or enhancement.
29 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
30 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
31 * OR ANY PART THEREOF.
33 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
34 * or profits or other special, indirect and consequential damages, even if
35 * Sun has been advised of the possibility of such damages.
37 * Sun Microsystems, Inc.
39 * Mountain View, California 94043
41 #if !defined(lint) && defined(SCCSIDS)
42 static char sccsid[] = "@(#)clnt_simple.c 1.35 87/08/11 Copyr 1984 Sun Micro";
47 * Simplified front end to rpc.
49 * Copyright (C) 1984, Sun Microsystems, Inc.
55 #include <sys/socket.h>
60 static struct callrpc_private {
63 int oldprognum, oldversnum, valid;
67 callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out)
69 xdrproc_t inproc, outproc;
72 register struct callrpc_private *crp = callrpc_private;
73 struct sockaddr_in server_addr;
74 enum clnt_stat clnt_stat;
76 struct timeval timeout, tottimeout;
79 crp = (struct callrpc_private *)calloc(1, sizeof (*crp));
82 callrpc_private = crp;
84 if (crp->oldhost == NULL) {
85 crp->oldhost = malloc(256);
87 crp->socket = RPC_ANYSOCK;
89 if (crp->valid && crp->oldprognum == prognum && crp->oldversnum == versnum
90 && strcmp(crp->oldhost, host) == 0) {
91 /* reuse old client */
95 (void)closesocket(crp->socket);
97 (void)close(crp->socket);
99 crp->socket = RPC_ANYSOCK;
101 clnt_destroy(crp->client);
104 if ((hp = gethostbyname(host)) == NULL)
105 return ((int) RPC_UNKNOWNHOST);
108 bcopy(hp->h_addr, (char *)&server_addr.sin_addr, hp->h_length);
109 server_addr.sin_family = AF_INET;
110 server_addr.sin_port = 0;
111 if ((crp->client = clntudp_create(&server_addr, (u_long)prognum,
112 (u_long)versnum, timeout, &crp->socket)) == NULL)
113 return ((int) rpc_createerr.cf_stat);
115 crp->oldprognum = prognum;
116 crp->oldversnum = versnum;
117 (void) strcpy(crp->oldhost, host);
119 tottimeout.tv_sec = 25;
120 tottimeout.tv_usec = 0;
121 clnt_stat = clnt_call(crp->client, procnum, inproc, in,
122 outproc, out, tottimeout);
124 * if call failed, empty cache
126 if (clnt_stat != RPC_SUCCESS)
128 return ((int) clnt_stat);