lib/libc/rpc/pmap_clnt.c

   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  * @(#)pmap_clnt.c 1.37 87/08/11 Copyr 1984 Sun Micro
  30  * @(#)pmap_clnt.c      2.2 88/08/01 4.0 RPCSRC
  31  * $NetBSD: pmap_clnt.c,v 1.16 2000/07/06 03:10:34 christos Exp $
  32  * $FreeBSD: src/lib/libc/rpc/pmap_clnt.c,v 1.15 2004/10/16 06:11:35 obrien Exp $
  33  * $DragonFly: src/lib/libc/rpc/pmap_clnt.c,v 1.5 2005/11/13 12:27:04 swildner Exp $
  34  */
  35
  36 /*
  37  * pmap_clnt.c
  38  * Client interface to pmap rpc service.
  39  *
  40  * Copyright (C) 1984, Sun Microsystems, Inc.
  41  */
  42
  43 #include "namespace.h"
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #include <unistd.h>
  47
  48 #include <rpc/rpc.h>
  49 #include <rpc/pmap_prot.h>
  50 #include <rpc/pmap_clnt.h>
  51 #include <rpc/nettype.h>
  52 #include <netinet/in.h>
  53 #include "un-namespace.h"
  54
  55 #include <stdio.h>
  56 #include <stdlib.h>
  57
  58 #include "rpc_com.h"
  59
  60 bool_t
  61 pmap_set(u_long program, u_long version, int protocol, u_short port)
  62 {
  63         bool_t rslt;
  64         struct netbuf *na;
  65         struct netconfig *nconf;
  66         char buf[32];
  67
  68         if ((protocol != IPPROTO_UDP) && (protocol != IPPROTO_TCP)) {
  69                 return (FALSE);
  70         }
  71         nconf = __rpc_getconfip(protocol == IPPROTO_UDP ? "udp" : "tcp");
  72         if (nconf == NULL) {
  73                 return (FALSE);
  74         }
  75         snprintf(buf, sizeof buf, "0.0.0.0.%d.%d",
  76             (((u_int32_t)port) >> 8) & 0xff, port & 0xff);
  77         na = uaddr2taddr(nconf, buf);
  78         if (na == NULL) {
  79                 freenetconfigent(nconf);
  80                 return (FALSE);
  81         }
  82         rslt = rpcb_set((rpcprog_t)program, (rpcvers_t)version, nconf, na);
  83         free(na);
  84         freenetconfigent(nconf);
  85         return (rslt);
  86 }
  87
  88 /*
  89  * Remove the mapping between program, version and port.
  90  * Calls the pmap service remotely to do the un-mapping.
  91  */
  92 bool_t
  93 pmap_unset(u_long program, u_long version)
  94 {
  95         struct netconfig *nconf;
  96         bool_t udp_rslt = FALSE;
  97         bool_t tcp_rslt = FALSE;
  98
  99         nconf = __rpc_getconfip("udp");
 100         if (nconf != NULL) {
 101                 udp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
 102                     nconf);
 103                 freenetconfigent(nconf);
 104         }
 105         nconf = __rpc_getconfip("tcp");
 106         if (nconf != NULL) {
 107                 tcp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
 108                     nconf);
 109                 freenetconfigent(nconf);
 110         }
 111         /*
 112          * XXX: The call may still succeed even if only one of the
 113          * calls succeeded.  This was the best that could be
 114          * done for backward compatibility.
 115          */
 116         return (tcp_rslt || udp_rslt);
 117 }