lib/libc/rpc/pmap_clnt.c

   1 /*-
   2  * Copyright (c) 2009, Sun Microsystems, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are met:
   7  * - Redistributions of source code must retain the above copyright notice,
   8  *   this list of conditions and the following disclaimer.
   9  * - Redistributions in binary form must reproduce the above copyright notice,
  10  *   this list of conditions and the following disclaimer in the documentation
  11  *   and/or other materials provided with the distribution.
  12  * - Neither the name of Sun Microsystems, Inc. nor the names of its
  13  *   contributors may be used to endorse or promote products derived
  14  *   from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * @(#)pmap_clnt.c 1.37 87/08/11 Copyr 1984 Sun Micro
  29  * @(#)pmap_clnt.c      2.2 88/08/01 4.0 RPCSRC
  30  * $NetBSD: pmap_clnt.c,v 1.16 2000/07/06 03:10:34 christos Exp $
  31  * $FreeBSD: src/lib/libc/rpc/pmap_clnt.c,v 1.15 2004/10/16 06:11:35 obrien Exp $
  32  * $DragonFly: src/lib/libc/rpc/pmap_clnt.c,v 1.5 2005/11/13 12:27:04 swildner Exp $
  33  */
  34
  35 /*
  36  * pmap_clnt.c
  37  * Client interface to pmap rpc service.
  38  *
  39  * Copyright (C) 1984, Sun Microsystems, Inc.
  40  */
  41
  42 #include "namespace.h"
  43 #include <sys/types.h>
  44 #include <sys/stat.h>
  45 #include <unistd.h>
  46
  47 #include <rpc/rpc.h>
  48 #include <rpc/pmap_prot.h>
  49 #include <rpc/pmap_clnt.h>
  50 #include <rpc/nettype.h>
  51 #include <netinet/in.h>
  52 #include "un-namespace.h"
  53
  54 #include <stdio.h>
  55 #include <stdlib.h>
  56
  57 #include "rpc_com.h"
  58
  59 bool_t
  60 pmap_set(u_long program, u_long version, int protocol, u_short port)
  61 {
  62         bool_t rslt;
  63         struct netbuf *na;
  64         struct netconfig *nconf;
  65         char buf[32];
  66
  67         if ((protocol != IPPROTO_UDP) && (protocol != IPPROTO_TCP)) {
  68                 return (FALSE);
  69         }
  70         nconf = __rpc_getconfip(protocol == IPPROTO_UDP ? "udp" : "tcp");
  71         if (nconf == NULL) {
  72                 return (FALSE);
  73         }
  74         snprintf(buf, sizeof buf, "0.0.0.0.%d.%d",
  75             (((u_int32_t)port) >> 8) & 0xff, port & 0xff);
  76         na = uaddr2taddr(nconf, buf);
  77         if (na == NULL) {
  78                 freenetconfigent(nconf);
  79                 return (FALSE);
  80         }
  81         rslt = rpcb_set((rpcprog_t)program, (rpcvers_t)version, nconf, na);
  82         free(na);
  83         freenetconfigent(nconf);
  84         return (rslt);
  85 }
  86
  87 /*
  88  * Remove the mapping between program, version and port.
  89  * Calls the pmap service remotely to do the un-mapping.
  90  */
  91 bool_t
  92 pmap_unset(u_long program, u_long version)
  93 {
  94         struct netconfig *nconf;
  95         bool_t udp_rslt = FALSE;
  96         bool_t tcp_rslt = FALSE;
  97
  98         nconf = __rpc_getconfip("udp");
  99         if (nconf != NULL) {
 100                 udp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
 101                     nconf);
 102                 freenetconfigent(nconf);
 103         }
 104         nconf = __rpc_getconfip("tcp");
 105         if (nconf != NULL) {
 106                 tcp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
 107                     nconf);
 108                 freenetconfigent(nconf);
 109         }
 110         /*
 111          * XXX: The call may still succeed even if only one of the
 112          * calls succeeded.  This was the best that could be
 113          * done for backward compatibility.
 114          */
 115         return (tcp_rslt || udp_rslt);
 116 }