contrib/bind-9.2.4rc7/bin/named/lwdnoop.c

   1 /*
   2  * Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 2000, 2001  Internet Software Consortium.
   4  *
   5  * Permission to use, copy, modify, and distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  10  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  11  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  12  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  13  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  14  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  15  * PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 /* $Id: lwdnoop.c,v 1.6.2.1 2004/03/09 06:09:18 marka Exp $ */
  19
  20 #include <config.h>
  21
  22 #include <isc/socket.h>
  23 #include <isc/util.h>
  24
  25 #include <named/types.h>
  26 #include <named/lwdclient.h>
  27
  28 void
  29 ns_lwdclient_processnoop(ns_lwdclient_t *client, lwres_buffer_t *b) {
  30         lwres_nooprequest_t *req;
  31         lwres_noopresponse_t resp;
  32         isc_result_t result;
  33         lwres_result_t lwres;
  34         isc_region_t r;
  35         lwres_buffer_t lwb;
  36
  37         REQUIRE(NS_LWDCLIENT_ISRECVDONE(client));
  38         INSIST(client->byaddr == NULL);
  39
  40         req = NULL;
  41
  42         result = lwres_nooprequest_parse(client->clientmgr->lwctx,
  43                                          b, &client->pkt, &req);
  44         if (result != LWRES_R_SUCCESS)
  45                 goto out;
  46
  47         client->pkt.recvlength = LWRES_RECVLENGTH;
  48         client->pkt.authtype = 0; /* XXXMLG */
  49         client->pkt.authlength = 0;
  50         client->pkt.result = LWRES_R_SUCCESS;
  51
  52         resp.datalength = req->datalength;
  53         resp.data = req->data;
  54
  55         lwres = lwres_noopresponse_render(client->clientmgr->lwctx, &resp,
  56                                           &client->pkt, &lwb);
  57         if (lwres != LWRES_R_SUCCESS)
  58                 goto out;
  59
  60         r.base = lwb.base;
  61         r.length = lwb.used;
  62         client->sendbuf = r.base;
  63         client->sendlength = r.length;
  64         result = ns_lwdclient_sendreply(client, &r);
  65         if (result != ISC_R_SUCCESS)
  66                 goto out;
  67
  68         /*
  69          * We can now destroy request.
  70          */
  71         lwres_nooprequest_free(client->clientmgr->lwctx, &req);
  72
  73         NS_LWDCLIENT_SETSEND(client);
  74
  75         return;
  76
  77  out:
  78         if (req != NULL)
  79                 lwres_nooprequest_free(client->clientmgr->lwctx, &req);
  80
  81         if (lwb.base != NULL)
  82                 lwres_context_freemem(client->clientmgr->lwctx,
  83                                       lwb.base, lwb.length);
  84
  85         ns_lwdclient_errorpktsend(client, LWRES_R_FAILURE);
  86 }