lib/libc/rpc/pmap_getmaps.c

   1 /*      $NetBSD: pmap_getmaps.c,v 1.18 2013/03/11 20:19:29 tron Exp $   */
   2
   3 /*
   4  * Copyright (c) 2010, Oracle America, Inc.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are
   8  * met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above
  13  *       copyright notice, this list of conditions and the following
  14  *       disclaimer in the documentation and/or other materials
  15  *       provided with the distribution.
  16  *     * Neither the name of the "Oracle America, Inc." nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  23  *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  24  *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  25  *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  27  *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  28  *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  29  *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  30  *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <sys/cdefs.h>
  35 #if defined(LIBC_SCCS) && !defined(lint)
  36 #if 0
  37 static char *sccsid = "@(#)pmap_getmaps.c 1.10 87/08/11 Copyr 1984 Sun Micro";
  38 static char *sccsid = "@(#)pmap_getmaps.c       2.2 88/08/01 4.0 RPCSRC";
  39 #else
  40 __RCSID("$NetBSD: pmap_getmaps.c,v 1.18 2013/03/11 20:19:29 tron Exp $");
  41 #endif
  42 #endif
  43
  44 /*
  45  * pmap_getmap.c
  46  * Client interface to pmap rpc service.
  47  * contains pmap_getmaps, which is only tcp service involved
  48  *
  49  * Copyright (C) 1984, Sun Microsystems, Inc.
  50  */
  51
  52 #include "namespace.h"
  53
  54 #include <sys/types.h>
  55 #include <sys/ioctl.h>
  56 #include <sys/socket.h>
  57
  58 #include <net/if.h>
  59
  60 #include <assert.h>
  61 #include <errno.h>
  62 #include <netdb.h>
  63 #include <stdio.h>
  64 #include <unistd.h>
  65
  66 #include <rpc/rpc.h>
  67 #include <rpc/pmap_prot.h>
  68 #include <rpc/pmap_clnt.h>
  69
  70 #ifdef __weak_alias
  71 __weak_alias(pmap_getmaps,_pmap_getmaps)
  72 #endif
  73
  74 #define NAMELEN 255
  75 #define MAX_BROADCAST_SIZE 1400
  76
  77 /*
  78  * Get a copy of the current port maps.
  79  * Calls the pmap service remotely to do get the maps.
  80  */
  81 struct pmaplist *
  82 pmap_getmaps(struct sockaddr_in *address)
  83 {
  84         struct pmaplist *head = NULL;
  85         int sock = -1;
  86         struct timeval minutetimeout;
  87         CLIENT *client;
  88
  89         _DIAGASSERT(address != NULL);
  90
  91         minutetimeout.tv_sec = 60;
  92         minutetimeout.tv_usec = 0;
  93         address->sin_port = htons(PMAPPORT);
  94         client = clnttcp_create(address, PMAPPROG,
  95             PMAPVERS, &sock, 50, 500);
  96         if (client != NULL) {
  97                 if (CLNT_CALL(client, (rpcproc_t)PMAPPROC_DUMP,
  98                     (xdrproc_t)xdr_void, NULL,
  99                     (xdrproc_t)xdr_pmaplist, &head, minutetimeout) !=
 100                     RPC_SUCCESS) {
 101                         clnt_perror(client, "pmap_getmaps rpc problem");
 102                 }
 103                 CLNT_DESTROY(client);
 104         }
 105         address->sin_port = 0;
 106         return (head);
 107 }