pmap_rmt.c revision 258578
11553Srgrimes/* $NetBSD: pmap_rmt.c,v 1.29 2000/07/06 03:10:34 christos Exp $ */ 21553Srgrimes 31553Srgrimes/*- 41553Srgrimes * Copyright (c) 2009, Sun Microsystems, Inc. 51553Srgrimes * All rights reserved. 61553Srgrimes * 71553Srgrimes * Redistribution and use in source and binary forms, with or without 81553Srgrimes * modification, are permitted provided that the following conditions are met: 91553Srgrimes * - Redistributions of source code must retain the above copyright notice, 101553Srgrimes * this list of conditions and the following disclaimer. 111553Srgrimes * - Redistributions in binary form must reproduce the above copyright notice, 121553Srgrimes * this list of conditions and the following disclaimer in the documentation 131553Srgrimes * and/or other materials provided with the distribution. 141553Srgrimes * - Neither the name of Sun Microsystems, Inc. nor the names of its 151553Srgrimes * contributors may be used to endorse or promote products derived 161553Srgrimes * from this software without specific prior written permission. 171553Srgrimes * 181553Srgrimes * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 191553Srgrimes * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 201553Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 211553Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 221553Srgrimes * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 231553Srgrimes * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 241553Srgrimes * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 251553Srgrimes * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 261553Srgrimes * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 271553Srgrimes * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 281553Srgrimes * POSSIBILITY OF SUCH DAMAGE. 291553Srgrimes */ 301553Srgrimes 311553Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 321553Srgrimesstatic char *sccsid2 = "@(#)pmap_rmt.c 1.21 87/08/27 Copyr 1984 Sun Micro"; 331553Srgrimesstatic char *sccsid = "@(#)pmap_rmt.c 2.2 88/08/01 4.0 RPCSRC"; 341553Srgrimes#endif 3578146Sgad#include <sys/cdefs.h> 3678146Sgad__FBSDID("$FreeBSD: head/lib/libc/rpc/pmap_rmt.c 258578 2013-11-25 19:04:36Z hrs $"); 371553Srgrimes 381553Srgrimes/* 391553Srgrimes * pmap_rmt.c 4039084Swollman * Client interface to pmap rpc service. 411553Srgrimes * remote call and broadcast service 421553Srgrimes * 431553Srgrimes * Copyright (C) 1984, Sun Microsystems, Inc. 441553Srgrimes */ 4598152Sgad 4678750Sgad#include "namespace.h" 4798152Sgad#include <sys/types.h> 4878146Sgad#include <sys/ioctl.h> 4998152Sgad#include <sys/poll.h> 5098267Sgad#include <sys/socket.h> 5178750Sgad 5278750Sgad#include <net/if.h> 5378146Sgad#include <netinet/in.h> 5478750Sgad#include <arpa/inet.h> 5578750Sgad 5678146Sgad#include <assert.h> 5798152Sgad#include <err.h> 5898267Sgad#include <errno.h> 5998267Sgad#include <stdio.h> 6098152Sgad#include <string.h> 6178146Sgad#include <unistd.h> 6298152Sgad 6378146Sgad#include <rpc/rpc.h> 6498152Sgad#include <rpc/pmap_prot.h> 6598152Sgad#include <rpc/pmap_clnt.h> 6698152Sgad#include <rpc/pmap_rmt.h> 6798152Sgad#include "un-namespace.h" 6898152Sgad 6998152Sgadstatic const struct timeval timeout = { 3, 0 }; 7098152Sgad 7198152Sgad/* 721553Srgrimes * pmapper remote-call-service interface. 731553Srgrimes * This routine is used to call the pmapper remote call service 741553Srgrimes * which will look up a service program in the port maps, and then 751553Srgrimes * remotely call that routine with the given parameters. This allows 7639084Swollman * programs to do a lookup and call in one step. 77*/ 78enum clnt_stat 79pmap_rmtcall(addr, prog, vers, proc, xdrargs, argsp, xdrres, resp, tout, 80 port_ptr) 81 struct sockaddr_in *addr; 82 u_long prog, vers, proc; 83 xdrproc_t xdrargs, xdrres; 84 caddr_t argsp, resp; 85 struct timeval tout; 86 u_long *port_ptr; 87{ 88 int sock = -1; 89 CLIENT *client; 90 struct rmtcallargs a; 91 struct rmtcallres r; 92 enum clnt_stat stat; 93 94 assert(addr != NULL); 95 assert(port_ptr != NULL); 96 97 addr->sin_port = htons(PMAPPORT); 98 client = clntudp_create(addr, PMAPPROG, PMAPVERS, timeout, &sock); 99 if (client != NULL) { 100 a.prog = prog; 101 a.vers = vers; 102 a.proc = proc; 103 a.args_ptr = argsp; 104 a.xdr_args = xdrargs; 105 r.port_ptr = port_ptr; 106 r.results_ptr = resp; 107 r.xdr_results = xdrres; 108 stat = CLNT_CALL(client, (rpcproc_t)PMAPPROC_CALLIT, 109 (xdrproc_t)xdr_rmtcall_args, &a, (xdrproc_t)xdr_rmtcallres, 110 &r, tout); 111 CLNT_DESTROY(client); 112 } else { 113 stat = RPC_FAILED; 114 } 115 addr->sin_port = 0; 116 return (stat); 117} 118 119 120/* 121 * XDR remote call arguments 122 * written for XDR_ENCODE direction only 123 */ 124bool_t 125xdr_rmtcall_args(xdrs, cap) 126 XDR *xdrs; 127 struct rmtcallargs *cap; 128{ 129 u_int lenposition, argposition, position; 130 131 assert(xdrs != NULL); 132 assert(cap != NULL); 133 134 if (xdr_u_long(xdrs, &(cap->prog)) && 135 xdr_u_long(xdrs, &(cap->vers)) && 136 xdr_u_long(xdrs, &(cap->proc))) { 137 lenposition = XDR_GETPOS(xdrs); 138 if (! xdr_u_long(xdrs, &(cap->arglen))) 139 return (FALSE); 140 argposition = XDR_GETPOS(xdrs); 141 if (! (*(cap->xdr_args))(xdrs, cap->args_ptr)) 142 return (FALSE); 143 position = XDR_GETPOS(xdrs); 144 cap->arglen = (u_long)position - (u_long)argposition; 145 XDR_SETPOS(xdrs, lenposition); 146 if (! xdr_u_long(xdrs, &(cap->arglen))) 147 return (FALSE); 148 XDR_SETPOS(xdrs, position); 149 return (TRUE); 150 } 151 return (FALSE); 152} 153 154/* 155 * XDR remote call results 156 * written for XDR_DECODE direction only 157 */ 158bool_t 159xdr_rmtcallres(xdrs, crp) 160 XDR *xdrs; 161 struct rmtcallres *crp; 162{ 163 caddr_t port_ptr; 164 165 assert(xdrs != NULL); 166 assert(crp != NULL); 167 168 port_ptr = (caddr_t)(void *)crp->port_ptr; 169 if (xdr_reference(xdrs, &port_ptr, sizeof (u_long), 170 (xdrproc_t)xdr_u_long) && xdr_u_long(xdrs, &crp->resultslen)) { 171 crp->port_ptr = (u_long *)(void *)port_ptr; 172 return ((*(crp->xdr_results))(xdrs, crp->results_ptr)); 173 } 174 return (FALSE); 175} 176