src/net/dns/mdns_client.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "net/dns/mdns_client.h"
   6
   7 #include "net/dns/dns_protocol.h"
   8 #include "net/dns/mdns_client_impl.h"
   9
  10 namespace net {
  11
  12 namespace {
  13
  14 const char kMDnsMulticastGroupIPv4[] = "224.0.0.251";
  15 const char kMDnsMulticastGroupIPv6[] = "FF02::FB";
  16
  17 IPEndPoint GetMDnsIPEndPoint(const char* address) {
  18   IPAddressNumber multicast_group_number;
  19   bool success = ParseIPLiteralToNumber(address,
  20                                         &multicast_group_number);
  21   DCHECK(success);
  22   return IPEndPoint(multicast_group_number,
  23                     dns_protocol::kDefaultPortMulticast);
  24 }
  25
  26 }  // namespace
  27
  28 // static
  29 scoped_ptr<MDnsClient> MDnsClient::CreateDefault() {
  30   return scoped_ptr<MDnsClient>(
  31       new MDnsClientImpl(MDnsConnection::SocketFactory::CreateDefault()));
  32 }
  33
  34 IPEndPoint GetMDnsIPEndPoint(AddressFamily address_family) {
  35   switch (address_family) {
  36   case ADDRESS_FAMILY_IPV4:
  37     return GetMDnsIPEndPoint(kMDnsMulticastGroupIPv4);
  38   case ADDRESS_FAMILY_IPV6:
  39     return GetMDnsIPEndPoint(kMDnsMulticastGroupIPv6);
  40   default:
  41     NOTREACHED();
  42     return IPEndPoint();
  43   }
  44 }
  45
  46 }  // namespace net