1 /* @(#)pmap_getport.c 2.2 88/08/01 4.0 RPCSRC */ 2 /* 3 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 4 * unrestricted use provided that this legend is included on all tape 5 * media and as a part of the software program in whole or part. Users 6 * may copy or modify Sun RPC without charge, but are not authorized 7 * to license or distribute it to anyone else except as part of a product or 8 * program developed by the user. 9 * 10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 13 * 14 * Sun RPC is provided with no support and without any obligation on the 15 * part of Sun Microsystems, Inc. to assist in its use, correction, 16 * modification or enhancement. 17 * 18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 20 * OR ANY PART THEREOF. 21 * 22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 23 * or profits or other special, indirect and consequential damages, even if 24 * Sun has been advised of the possibility of such damages. 25 * 26 * Sun Microsystems, Inc. 27 * 2550 Garcia Avenue 28 * Mountain View, California 94043 29 */ 30 #if !defined(lint) && defined(SCCSIDS) 31 static char sccsid[] = "@(#)pmap_getport.c 1.9 87/08/11 Copyr 1984 Sun Micro"; 32 #endif 33 34 /* 35 * pmap_getport.c 36 * Client interface to pmap rpc service. 37 * 38 * Copyright (C) 1984, Sun Microsystems, Inc. 39 */ 40 41 #include <rpc/rpc.h> 42 #include <rpc/pmap_prot.h> 43 #include <rpc/pmap_clnt.h> 44 #include <sys/socket.h> 45 #include <net/if.h> 46 47 static struct timeval timeout = { 5, 0 }; 48 static struct timeval tottimeout = { 60, 0 }; 49 50 /* 51 * Find the mapped port for program,version. 52 * Calls the pmap service remotely to do the lookup. 53 * Returns 0 if no map exists. 54 */ 55 u_short 56 pmap_getport(address, program, version, protocol) 57 struct sockaddr_in *address; 58 u_long program; 59 u_long version; 60 u_int protocol; 61 { 62 u_short port = 0; 63 int socket = -1; 64 register CLIENT *client; 65 struct pmap parms; 66 67 address->sin_port = htons(PMAPPORT); 68 client = clntudp_bufcreate(address, PMAPPROG, 69 PMAPVERS, timeout, &socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE); 70 if (client != (CLIENT *)NULL) { 71 parms.pm_prog = program; 72 parms.pm_vers = version; 73 parms.pm_prot = protocol; 74 parms.pm_port = 0; /* not needed or used */ 75 if (CLNT_CALL(client, PMAPPROC_GETPORT, xdr_pmap, &parms, 76 xdr_u_short, &port, tottimeout) != RPC_SUCCESS){ 77 rpc_createerr.cf_stat = RPC_PMAPFAILURE; 78 clnt_geterr(client, &rpc_createerr.cf_error); 79 } else if (port == 0) { 80 rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED; 81 } 82 CLNT_DESTROY(client); 83 } 84 (void)close(socket); 85 address->sin_port = 0; 86 return (port); 87 } 88