ipv4.h

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/**********************************************************//**
 **
 ** @file base/IPv4.h
 **
 ** Copyright (C) 2012  Xpace, LLC.  All rights reserved
 **
 ** www.xpace.net
 **
 **************************************************************/

#ifndef XPACE_IPV4_H
#define XPACE_IPV4_H

#include "util/matchstring.h"

namespace Xpace
{
  class XPACE_EXPORT IPv4
  {
  public:
    IPv4
      (const String& format) :
        qformat(format)
    {
      for (int i(0), n(1); ((i = qformat.indexOf('a', i)) != -1) && (n <= 4); ++n)
        qformat.replace(i, 1, QString("%%1").arg(n));
    }

    IPv4& operator=
      (uint32 v)
    {
      val = v;
      return *this;
    }

    /// @retval buf the buffer into which to store the IPv4
    void toString
      (String16* string)          
      const
    {
      QString q(toString());
      if (q.length() < narrow_to<int>(string->length))
        string->length = q.length();
      memcpy(string->data, q.utf16(), string->length * sizeof(utf16_t));
    }

    /// @param format the format of the IPv4 e.g. "a.a.a.a"
    String toString
      ()
      const
    {
      return QString(qformat).arg(val >> 24)
                             .arg((val >> 16) & 0xFF)
                             .arg((val >> 8) & 0xFF)
                             .arg(val & 0xFF);
    }

  private:
    QString qformat;
    uint32 val;
  };
}
#endif