using boost c++ library download url not working under proxy

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C++

web

Boost

sockets

HttpModule

Hi I am new user of Boost
I wanted to connect to a http web site by proxy
and want to download "www.boost.org/LICENSE_1_0.txt" this file.
it is telling connected
but not able to download the link above and also not able to maintain the connection.

here is my code.

try{ 
io_service i; 
tcp::socket t( i ); 
//ssl::context c( i, ssl::context::sslv3_client ); 
//ssl::stream<tcp::socket&> s( t, c ); 

tcp::resolver r( i ); 
tcp::resolver::query q( "192.168.1.1", "3128" ); 
t.connect( *r.resolve( q ) ); 
const char request[] = "CONNECT www.boost.org HTTP/1.0\r\n Connection: keep-alive \r\n\r\n"; 
//to keep the conn alive  "Connection: keep-alive" but :( 
boost::asio::write( t, buffer( request, sizeof request - 1 ) ); 
boost::asio::streambuf res; 
boost::asio::read_until( t, res, "\r\n\r\n" ); 
cout << &res; // => "HTTP/1.0 200 Connection established\r\n\r\n"  coming :) 


//now I want download www.boost.org/LICENSE_1_0.txt 
const char request1[]= "GET /LICENSE_1_0.txt HTTP/1.0 \r\n  Host: www.boost.org  \r\n Accept: */*\r\n Connection: keep-alive \r\n\r\n" ; 
boost::asio::write( t, buffer( request1, sizeof request1 - 1 ) ); 
boost::asio::read_until( t, res, "\r\n\r\n" ); 
cout << &res;//it is coming into catch block and printing  "Exception: read_unti: end of file"

} 
  catch (std::exception& e) 
  { 
    std::cout << "Exception: " << e.what() << "\n"; 
  }