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 *rcsid = "$OpenBSD: pmap_getport.c,v 1.7 2001/09/15 13:51:01 deraadt Exp $"; 32 #endif /* LIBC_SCCS and not lint */ 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 <unistd.h> 42 #include <rpc/rpc.h> 43 #include <rpc/pmap_prot.h> 44 #include <rpc/pmap_clnt.h> 45 #include <sys/socket.h> 46 #include <net/if.h> 47 48 static struct timeval timeout = { 5, 0 }; 49 static struct timeval tottimeout = { 60, 0 }; 50 51 /* 52 * Find the mapped port for program,version. 53 * Calls the pmap service remotely to do the lookup. 54 * Returns 0 if no map exists. 55 */ 56 u_short 57 pmap_getport(address, program, version, protocol) 58 struct sockaddr_in *address; 59 u_long program; 60 u_long version; 61 u_int protocol; 62 { 63 u_short port = 0; 64 int sock = -1; 65 CLIENT *client; 66 struct pmap parms; 67 68 address->sin_port = htons(PMAPPORT); 69 client = clntudp_bufcreate(address, PMAPPROG, 70 PMAPVERS, timeout, &sock, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE); 71 if (client != (CLIENT *)NULL) { 72 parms.pm_prog = program; 73 parms.pm_vers = version; 74 parms.pm_prot = protocol; 75 parms.pm_port = 0; /* not needed or used */ 76 if (CLNT_CALL(client, PMAPPROC_GETPORT, xdr_pmap, &parms, 77 xdr_u_short, &port, tottimeout) != RPC_SUCCESS){ 78 rpc_createerr.cf_stat = RPC_PMAPFAILURE; 79 clnt_geterr(client, &rpc_createerr.cf_error); 80 } else if (port == 0) { 81 rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED; 82 } 83 CLNT_DESTROY(client); 84 } 85 if (sock != -1) 86 (void)close(sock); 87 address->sin_port = 0; 88 return (port); 89 } 90