plain_tool/options.h

   1 /*
   2  *  anytun
   3  *
   4  *  The secure anycast tunneling protocol (satp) defines a protocol used
   5  *  for communication between any combination of unicast and anycast
   6  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
   7  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
   8  *  ethernet, ip, arp ...). satp directly includes cryptography and
   9  *  message authentication based on the methodes used by SRTP.  It is
  10  *  intended to deliver a generic, scaleable and secure solution for
  11  *  tunneling and relaying of packets of any protocol.
  12  *
  13  *
  14  *  Copyright (C) 2007 anytun.org <satp@wirdorange.org>
  15  *
  16  *  This program is free software; you can redistribute it and/or modify
  17  *  it under the terms of the GNU General Public License version 2
  18  *  as published by the Free Software Foundation.
  19  *
  20  *  This program is distributed in the hope that it will be useful,
  21  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  *  GNU General Public License for more details.
  24  *
  25  *  You should have received a copy of the GNU General Public License
  26  *  along with this program (see the file COPYING included with this
  27  *  distribution); if not, write to the Free Software Foundation, Inc.,
  28  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  29  */
  30
  31 #ifndef _OPTIONS_H_
  32 #define _OPTIONS_H_
  33
  34 #include "../threadUtils.hpp"
  35
  36 class Options
  37 {
  38 public:
  39   static Options& instance();
  40
  41   bool parse(int argc, char* argv[]);
  42   void printUsage();
  43   void printOptions();
  44
  45   std::string getProgname();
  46   Options& setProgname(std::string p);
  47
  48
  49 private:
  50   Options();
  51   ~Options();
  52   Options(const Options &l);
  53   void operator=(const Options &l);
  54
  55   static Options* inst;
  56   static Mutex instMutex;
  57   class instanceCleaner {
  58     public: ~instanceCleaner() {
  59       if(Options::inst != 0)
  60         delete Options::inst;
  61     }
  62   };
  63   friend class instanceCleaner;
  64
  65   Mutex mutex;
  66
  67   std::string progname_;
  68 };
  69
  70 extern Options& gOpt;
  71
  72 #endif