// file      : bbot/tftp -*- C++ -*-
// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
// license   : TBC; see accompanying LICENSE file

#ifndef BBOT_TFTP
#define BBOT_TFTP

#include <bbot/types>
#include <bbot/utility>

namespace bbot
{
  // A TFTP server "wrapper" over tftpd-hpa.
  //
  // In a nutshell, we are pretending to be inetd and when a request arrives,
  // spawn tftpd-hpa to handle it.
  //
  class tftp_server
  {
  public:
    // The map argument specifies the path mapping rules, one per line (see
    // the tftpd-hpa --map-file|-m option for details).
    //
    tftp_server (const string& map);

    // Return the assigned port.
    //
    uint16_t
    port () const;

    // Wait for a TFTP request for up to the specified number of seconds. If
    // a request was served, update the timeout value and return true. Retain
    // the original timeout value and return false otherwise.
    //
    bool
    serve (size_t& seconds);

  private:
    auto_fd fd_;
    auto_rmfile map_;
  };
}

#endif // BBOT_TFTP