include/wipal/tool/addr.hxx

/*
 * WiPal - A library and a set of tools to manipulate wireless traces.
 * Copyright (C) 2007, 2008, 2009  Universite Pierre et Marie Curie - Paris 6
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301  USA
 *
 * Author: Thomas Claveirole <thomas.claveirole@lip6.fr>
 */
#ifndef TOOL_ADDR_HXX_
# define TOOL_ADDR_HXX_

# include <cstring>
# include <cassert>
# include <sstream>
# include <iomanip>
# include <stdexcept>
# include <sstream>

# include "addr.hh"

namespace wpl
{

  namespace tool
  {

    template <class VT, unsigned N, bool HN, char SN>
    addr<VT, N, HN, SN>::addr()
    {
      memset(addr_, 0, sizeof (addr_));
    }

    template <class VT, unsigned N, bool HN, char SN>
    addr<VT, N, HN, SN>::addr(const void* a)
    {
      memcpy(addr_, a, sizeof (addr_));
    }

    template <class VT, unsigned N, bool HN, char SN>
    addr<VT, N, HN, SN>::addr(const std::string& str)
    {
      std::istringstream        is (str);

      read(is);
      if (not is)
        throw std::invalid_argument ("string is not a valid address");
    }

    template <class VT, unsigned N, bool HN, char SN>
    addr<VT, N, HN, SN>::addr(std::istream& is)
    {
      read(is);
      if (not is)
        throw std::invalid_argument ("string is not a valid address");
    }

    template <class VT, unsigned N, bool HN, char SN>
    std::istream&
    addr<VT, N, HN, SN>::read(std::istream& is)
    {
      if (HN)
        is >> std::hex;
      for (unsigned i = 0; i < N; ++i)
        {
          unsigned      t;

          if (i and is.get() != SN)
            {
              is.setstate(is.rdstate() | std::istream::failbit);
              return is;
            }
          if (not (is >> t))
            return is;
          addr_[i] = VT (t);
        }
      return is;
    }

    template <class VT, unsigned N, bool HN, char SN>
    bool
    addr<VT, N, HN, SN>::operator < (const addr& rhs) const
    {
      return memcmp(addr_, rhs.addr_, sizeof (addr_)) < 0;
    }

    template <class VT, unsigned N, bool HN, char SN>
    bool
    addr<VT, N, HN, SN>::operator == (const addr& rhs) const
    {
      return memcmp(addr_, rhs.addr_, sizeof (addr_)) == 0;
    }

    template <class VT, unsigned N, bool HN, char SN>
    bool
    addr<VT, N, HN, SN>::operator != (const addr& rhs) const
    {
      return not operator == (rhs);
    }

    template <class VT, unsigned N, bool HN, char SN>
    VT&
    addr<VT, N, HN, SN>::operator [] (unsigned i)
    {
      assert(i < N);

      return addr_[i];
    }

    template <class VT, unsigned N, bool HN, char SN>
    const VT&
    addr<VT, N, HN, SN>::operator [] (unsigned i) const
    {
      assert(i < N);

      return addr_[i];
    }

    template <class VT, unsigned N, bool HN, char SN>
    void
    addr<VT, N, HN, SN>::dump(void *a) const
    {
      memcpy(a, addr_, sizeof (addr_));
    }

    template <class VT, unsigned N, bool HN, char SN>
    const addr<VT, N, HN, SN>&
    addr<VT, N, HN, SN>::null()
    {
      static const addr<VT, N, HN, SN>  null;

      return null;
    }

    template <class VT, unsigned N, bool HN, char SN>
    const addr<VT, N, HN, SN>&
    addr<VT, N, HN, SN>::broadcast()
    {
      static bool                       init = false;
      static addr<VT, N, HN, SN>        bcast;

      if (not init)
        {
          memset(bcast.addr_, 0xFF, sizeof (bcast.addr_));
          init = true;
        }
      return bcast;
    }

    template <class VT, unsigned N, bool HN, char SN>
    size_t
    addr<VT, N, HN, SN>::size() const
    {
      return sizeof (addr_);
    }

    template <class VT, unsigned N, bool HN, char SN>
    std::ostream&
    operator << (std::ostream& os, const addr<VT, N, HN, SN>& a)
    {
      if (HN)
        os << std::hex << std::setfill ('0');
      for (unsigned i = 0; i < N - 1; ++i)
        {
          if (HN)
            os << std::setw (sizeof (VT) * 2);
          os << unsigned (a[i]) << SN;
        }
      if (HN)
        os << std::setw (sizeof (VT) * 2);
      return os << unsigned (a[N - 1])
                << std::dec << std::setfill (' ');
    }

    template <class VT, unsigned N, bool HN, char SN>
    std::istream&
    operator >> (std::istream& is, addr<VT, N, HN, SN>& a)
    {
      return a.read(is);
    }

    template <class VT, unsigned N, bool HN, char SN>
    std::string
    make_string(const addr<VT, N, HN, SN>& a)
    {
      std::ostringstream        os;

      os << a;
      return os.str();
    }

  } // End of namespace wpl::tool.

} // End of namespace wpl.

#endif // ! TOOL_ADDR_HXX_

---