namespace knot {
  connect();               // connects to a network address.
  send();                  // sends data bytes thru a connection.
  receive();               // receives data bytes from a connection.
  receive();               // receives data bytes from a http connection.
  disconnect();            // closes an established connection.
  listen();                // creates a listening thread.
  shutdown();              // shutdowns a listening thread.
  sleep();                 // puts a thread to sleep.
  reset_counters();        // reset transmission stats.
  get_bytes_received();    // get number of bytes received since last reset.
  get_bytes_sent();        // get number of bytes received since last reset.
  get_interface_address(); // get address of current interface address (requires an established connection)
  lookup();                // get uri from url or host:port address.
  close_r();               // disable read operations on socket.
  close_w();               // disable write operations on socket.
}

#include <iostream>
#include "knot.hpp"

int main( int argc, const char **argv )
{
    int socket;
    std::string answer;
    std::cout << "answer from NTP server: ";

    if( knot::connect( socket, "time-C.timefreq.bldrdoc.gov", "13" ) )
        if( knot::send( socket, "dummy" ) )
            if( knot::receive( socket, answer ) )
                std::cout << answer << std::endl;

    knot::disconnect( socket );

    return 0;
}