|  | 
Get the underlying implementation in the native type.
native_handle_type native_handle();
This function may be used to obtain the underlying implementation of the context. This is intended to allow access to context functionality that is not otherwise provided.
          The native_handle() function returns a pointer of type SSL*
          that is suitable for passing to functions such as SSL_get_verify_result
          and SSL_get_peer_certificate:
        
asio::ssl::stream<asio:ip::tcp::socket> sock(io_context, ctx);
// ... establish connection and perform handshake ...
if (X509* cert = SSL_get_peer_certificate(sock.native_handle()))
{
  if (SSL_get_verify_result(sock.native_handle()) == X509_V_OK)
  {
    // ...
  }
}