1 /* $NetBSD: pmap_getport.c,v 1.2 1995/02/25 03:01:49 cgd Exp $ */ 2 3 /* 4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 5 * unrestricted use provided that this legend is included on all tape 6 * media and as a part of the software program in whole or part. Users 7 * may copy or modify Sun RPC without charge, but are not authorized 8 * to license or distribute it to anyone else except as part of a product or 9 * program developed by the user. 10 * 11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 14 * 15 * Sun RPC is provided with no support and without any obligation on the 16 * part of Sun Microsystems, Inc. to assist in its use, correction, 17 * modification or enhancement. 18 * 19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 21 * OR ANY PART THEREOF. 22 * 23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 24 * or profits or other special, indirect and consequential damages, even if 25 * Sun has been advised of the possibility of such damages. 26 * 27 * Sun Microsystems, Inc. 28 * 2550 Garcia Avenue 29 * Mountain View, California 94043 30 */ 31 32 #if defined(LIBC_SCCS) && !defined(lint) 33 /*static char *sccsid = "from: @(#)pmap_getport.c 1.9 87/08/11 Copyr 1984 Sun Micro";*/ 34 /*static char *sccsid = "from: @(#)pmap_getport.c 2.2 88/08/01 4.0 RPCSRC";*/ 35 static char *rcsid = "$NetBSD: pmap_getport.c,v 1.2 1995/02/25 03:01:49 cgd Exp $"; 36 #endif 37 38 /* 39 * pmap_getport.c 40 * Client interface to pmap rpc service. 41 * 42 * Copyright (C) 1984, Sun Microsystems, Inc. 43 */ 44 45 #include <rpc/rpc.h> 46 #include <rpc/pmap_prot.h> 47 #include <rpc/pmap_clnt.h> 48 #include <sys/socket.h> 49 #include <net/if.h> 50 51 static struct timeval timeout = { 5, 0 }; 52 static struct timeval tottimeout = { 60, 0 }; 53 54 /* 55 * Find the mapped port for program,version. 56 * Calls the pmap service remotely to do the lookup. 57 * Returns 0 if no map exists. 58 */ 59 u_short 60 pmap_getport(address, program, version, protocol) 61 struct sockaddr_in *address; 62 u_long program; 63 u_long version; 64 u_int protocol; 65 { 66 u_short port = 0; 67 int socket = -1; 68 register CLIENT *client; 69 struct pmap parms; 70 71 address->sin_port = htons(PMAPPORT); 72 client = clntudp_bufcreate(address, PMAPPROG, 73 PMAPVERS, timeout, &socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE); 74 if (client != (CLIENT *)NULL) { 75 parms.pm_prog = program; 76 parms.pm_vers = version; 77 parms.pm_prot = protocol; 78 parms.pm_port = 0; /* not needed or used */ 79 if (CLNT_CALL(client, PMAPPROC_GETPORT, xdr_pmap, &parms, 80 xdr_u_short, &port, tottimeout) != RPC_SUCCESS){ 81 rpc_createerr.cf_stat = RPC_PMAPFAILURE; 82 clnt_geterr(client, &rpc_createerr.cf_error); 83 } else if (port == 0) { 84 rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED; 85 } 86 CLNT_DESTROY(client); 87 } 88 (void)close(socket); 89 address->sin_port = 0; 90 return (port); 91 } 92