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- /*======================================================================
- S E N D R P C . C
- doc: Thu May 7 16:55:29 1992
- dlm: Fri Jun 19 17:50:32 1992
- (c) 1992 ant@ips.id.ethz.ch
- uE-Info: 97 39 T 0 0 72 2 2 8 ofnI
- ======================================================================*/
-
- /*
- This file is a slightly modified version fo clnt_simple.c of the
- original SUNRPC package. It's routine, sendrpc(), works much like
- callrpc() except:
- - return is immediate (independently of out and outproc which
- are dummies)
- - the ascii-form of inet addresses are accepted (not only the
- names)
- */
-
- /* @(#)clnt_simple.c 2.2 88/08/01 4.0 RPCSRC */
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- #if !defined(lint) && defined(SCCSIDS)
- static char sccsid[] = "@(#)clnt_simple.c 1.35 87/08/11 Copyr 1984 Sun Micro";
- #endif
-
- /*
- * clnt_simple.c
- * Simplified front end to rpc.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- */
-
- #include <stdio.h>
- #include <rpc/rpc.h>
- #include <sys/socket.h>
- #include </usr/include/netdb.h> /* Prefer system over rpc/netdb.h */
- #include <strings.h>
- #ifndef ITIMER_REAL
- #include <sys/time.h>
- #endif
- #ifdef AUX_QUIRK
- #include "aux_quirk.h"
- #endif
-
- static struct callrpc_private {
- CLIENT *client;
- int socket;
- int oldprognum, oldversnum, valid;
- char *oldhost;
- } *callrpc_private;
-
- sendrpc(host, prognum, versnum, procnum, inproc, in, outproc, out)
- char *host;
- xdrproc_t inproc, outproc;
- char *in, *out;
- {
- register struct callrpc_private *crp = callrpc_private;
- struct sockaddr_in server_addr;
- enum clnt_stat clnt_stat;
- struct hostent *hp;
- struct timeval timeout, tottimeout, noDefault;
-
- noDefault.tv_sec = 0; noDefault.tv_usec = -1;
- if (crp == 0) {
- crp = (struct callrpc_private *)calloc(1, sizeof (*crp));
- if (crp == 0)
- return (0);
- callrpc_private = crp;
- }
- if (crp->oldhost == NULL) {
- crp->oldhost = (char *)malloc(256);
- crp->oldhost[0] = 0;
- crp->socket = RPC_ANYSOCK;
- }
- if (crp->valid && crp->oldprognum == prognum && crp->oldversnum == versnum
- && strcmp(crp->oldhost, host) == 0) {
- /* reuse old client */
- } else {
- crp->valid = 0;
- (void)close(crp->socket);
- crp->socket = RPC_ANYSOCK;
- if (crp->client) {
- clnt_destroy(crp->client);
- crp->client = NULL;
- }
- if ((hp = gethostbyname(host)) == NULL) { /* is address? */
- return ((int) RPC_UNKNOWNHOST);
- } else {
- bcopy(hp->h_addr, (char *)&server_addr.sin_addr, hp->h_length);
- }
- timeout.tv_usec = 0;
- timeout.tv_sec = 5;
- server_addr.sin_family = AF_INET;
- server_addr.sin_port = 0;
- if ((crp->client = clntudp_create(&server_addr, (u_long)prognum,
- (u_long)versnum, timeout, &crp->socket)) == NULL)
- return ((int) rpc_createerr.cf_stat);
- if (!clnt_control(crp->client,CLSET_TIMEOUT,&noDefault))
- return ((int) RPC_FAILED);
- crp->valid = 1;
- crp->oldprognum = prognum;
- crp->oldversnum = versnum;
- (void) strcpy(crp->oldhost, host);
- }
- tottimeout.tv_sec =
- tottimeout.tv_usec = 0;
- clnt_stat = clnt_call(crp->client, procnum, inproc, in,
- outproc, out, tottimeout);
- /*
- * if call failed, empty cache
- */
- if (clnt_stat == RPC_TIMEDOUT)
- clnt_stat = RPC_SUCCESS;
- if (clnt_stat != RPC_SUCCESS)
- crp->valid = 0;
- return ((int) clnt_stat);
- }
-