system_info_unix.hpp

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/*
  CLAW - a C++ Library Absolutely Wonderful
 
  CLAW is a free library without any particular aim but being useful to
  anyone.
 
  Copyright (C) 2005-2011 Julien Jorge
 
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.
 
  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
  contact: julien.jorge@stuff-o-matic.com
*/
#ifndef __CLAW_SYSTEM_INFO_UNIX_HPP__
#define __CLAW_SYSTEM_INFO_UNIXHPP__
 
#include <cstdlib>
#include <string>
 
namespace claw
{
  class system_info
  {
  public:
    static std::string get_user_name()
    {
      std::string result(get_environment("USER"));
 
      if(result.empty())
        result = get_environment("LOGNAME");
 
      return result;
    }

    static std::string get_user_directory()
    {
      return get_environment("HOME");
    }

    template <typename Sequence>
    static void get_path(Sequence& path)
    {
      //
    }

    static std::string get_host_name()
    {
      return get_environment("HOSTNAME");
    }

    static std::string get_temporary_directory()
    {
      return get_environment("TMPDIR");
    }

    static std::string get_environment(const std::string& var)
    {
      char* value = getenv(var.c_str());
      std::string result;
 
      if(value)
        result = value;
 
      return result;
    }
 
  }; // class system_info
}
 
#endif // __CLAW_SYSTEM_INFO_UNIX_HPP__