1 /* 2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 3 * unrestricted use provided that this legend is included on all tape 4 * media and as a part of the software program in whole or part. Users 5 * may copy or modify Sun RPC without charge, but are not authorized 6 * to license or distribute it to anyone else except as part of a product or 7 * program developed by the user. 8 * 9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 12 * 13 * Sun RPC is provided with no support and without any obligation on the 14 * part of Sun Microsystems, Inc. to assist in its use, correction, 15 * modification or enhancement. 16 * 17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 19 * OR ANY PART THEREOF. 20 * 21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 22 * or profits or other special, indirect and consequential damages, even if 23 * Sun has been advised of the possibility of such damages. 24 * 25 * Sun Microsystems, Inc. 26 * 2550 Garcia Avenue 27 * Mountain View, California 94043 28 */ 29 30 #if defined(LIBC_SCCS) && !defined(lint) 31 /*static char *sccsid = "from: @(#)pmap_getport.c 1.9 87/08/11 Copyr 1984 Sun Micro";*/ 32 /*static char *sccsid = "from: @(#)pmap_getport.c 2.2 88/08/01 4.0 RPCSRC";*/ 33 static char *rcsid = "$FreeBSD: src/lib/libc/rpc/pmap_getport.c,v 1.10 2000/01/27 23:06:40 jasone Exp $"; 34 #endif 35 36 /* 37 * pmap_getport.c 38 * Client interface to pmap rpc service. 39 * 40 * Copyright (C) 1984, Sun Microsystems, Inc. 41 */ 42 43 #include <rpc/rpc.h> 44 #include <rpc/pmap_prot.h> 45 #include <rpc/pmap_clnt.h> 46 #include <sys/socket.h> 47 #include <net/if.h> 48 #include <unistd.h> 49 50 static struct timeval timeout = { 5, 0 }; 51 static struct timeval tottimeout = { 60, 0 }; 52 53 /* 54 * Find the mapped port for program,version. 55 * Calls the pmap service remotely to do the lookup. 56 * Returns 0 if no map exists. 57 */ 58 u_short 59 pmap_getport(address, program, version, protocol) 60 struct sockaddr_in *address; 61 u_long program; 62 u_long version; 63 u_int protocol; 64 { 65 u_short port = 0; 66 int socket = -1; 67 register CLIENT *client; 68 struct pmap parms; 69 70 address->sin_port = htons(PMAPPORT); 71 client = clntudp_bufcreate(address, PMAPPROG, 72 PMAPVERS, timeout, &socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE); 73 if (client != (CLIENT *)NULL) { 74 parms.pm_prog = program; 75 parms.pm_vers = version; 76 parms.pm_prot = protocol; 77 parms.pm_port = 0; /* not needed or used */ 78 if (CLNT_CALL(client, PMAPPROC_GETPORT, xdr_pmap, &parms, 79 xdr_u_short, &port, tottimeout) != RPC_SUCCESS){ 80 rpc_createerr.cf_stat = RPC_PMAPFAILURE; 81 clnt_geterr(client, &rpc_createerr.cf_error); 82 } else if (port == 0) { 83 rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED; 84 } 85 CLNT_DESTROY(client); 86 } 87 if (socket != -1) 88 (void)_close(socket); 89 address->sin_port = 0; 90 return (port); 91 } 92