Boost-Net-Dns is a cross-platform C++ library for sending and receiving DNS resource records. For instance, if you are trying to find the MX record of a domain, you would use this resolver to find that.

License

 Boost-Net-Dns is release under the Boost Software License.

Dependencies

 Boost-Net-Dns  requires Boost version 1.33 or later and asio version 0.3.8.

Using  Boost-Net-Dns

The  Boost-Net-Dns library is relatively simplistic in design. A simple example of making a DNS request is as follows:

#include <boost/asio.hpp>
#include <boost/net/resolve.hpp>
using namespace boost::asio;

using namespace boost::net;

int main(int argc, char* argv[])
{
   dns::message dns_message("cnn.com", dns::type_a );
   dns::resolve resolver;

   ip::address a_gltd_servers_net( ip::address::from_string("192.5.6.30") );
   resolver.addServer( a_gltd_servers_net );

   ip::address b_gltd_servers_net( ip::address::from_string("192.33.14.30") );
   resolver.addServer( b_gltd_servers_net );

   ip::address c_gltd_servers_net( ip::address::from_string("192.26.92.30") );
   resolver.addServer( c_gltd_servers_net );

   ip::address d_gltd_servers_net( ip::address::from_string("192.31.80.30") );
   resolver.addServer( d_gltd_servers_net );

   ip::address e_gltd_servers_net( ip::address::from_string("192.12.94.30") );
   resolver.addServer( e_gltd_servers_net );

   ip::address f_gltd_servers_net( ip::address::from_string("192.35.51.30") );
   resolver.addServer( f_gltd_servers_net );

   ip::address g_gltd_servers_net( ip::address::from_string("192.42.93.30") );
   resolver.addServer( g_gltd_servers_net );

   ip::address h_gltd_servers_net( ip::address::from_string("192.54.112.30") );
   resolver.addServer( h_gltd_servers_net );

   ip::address i_gltd_servers_net( ip::address::from_string("192.43.172.30") );
   resolver.addServer( i_gltd_servers_net );

   ip::address j_gltd_servers_net( ip::address::from_string("192.48.79.30") );
   resolver.addServer( j_gltd_servers_net );

   ip::address k_gltd_servers_net( ip::address::from_string("192.52.178.30") );
   resolver.addServer( k_gltd_servers_net );

   ip::address l_gltd_servers_net( ip::address::from_string("192.41.162.30") );
   resolver.addServer( l_gltd_servers_net );

   dns::message dns_response = resolver.query(dns_message);

   return 0;
}

Changes since 1.0

1.1

• Adds

1. boost::ptr_vector to handle dns::message::records_t.
2. throw in readDomainName when dns packet is mangled
3. unknown_resource for unknown RR's. Following 1035's specification
4. A6 and SRV support for resource records

• Fixes

1. Memory leak in dns::message::records_t

• Changes

1. Namespace now changed to boost::net::dns as per Christopher Kohlhoff's email dated 7/19/2007 10:05 PM. Planning on implementing DHCP library to fit into the boost::net namespace.
   

Comments

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Rene Escudero   | 190.81.48.50 | 2008-07-24 10:04:58 HI, I don't find the Resolve.hpp file into Boost Library or Asio, so i can't implement this functionality Please help me with this. Reply | Quote 1   0

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Copyright (C) 2007 Alain Georgette / Copyright (C) 2006 Frantisek Hliva. All rights reserved.