#include "eui48-address.h"

#include "address.h"

#include "ns3/assert.h"

namespace ns3 {

#define ASCII_a (0x41)

#define ASCII_z (0x5a)

#define ASCII_A (0x61)

#define ASCII_Z (0x7a)

#define ASCII_COLON (0x3a)

#define ASCII_ZERO (0x30)

static char

AsciiToLowCase (char c)

{

  if (c >= ASCII_a && c <= ASCII_z) {

    return c;

  } else if (c >= ASCII_A && c <= ASCII_Z) {

    return c + (ASCII_a - ASCII_A);

  } else {

    return c;

  }

}

Eui48Address::Eui48Address ()

{

  memset (m_address, 0, 6);

}

Eui48Address::Eui48Address (const char *str)

{

  int i = 0;

  while (*str != 0 && i < 6) 

    {

      uint8_t byte = 0;

      while (*str != ASCII_COLON && *str != 0) 

	{

	  byte <<= 4;

	  char low = AsciiToLowCase (*str);

	  if (low >= ASCII_a) 

	    {

	      byte |= low - ASCII_a + 10;

	    } 

	  else 

	    {

	      byte |= low - ASCII_ZERO;

	    }

	  str++;

	}

      m_address[i] = byte;

      i++;

      if (*str == 0) 

	{

	  break;

	}

      str++;

    }

  NS_ASSERT (i == 6);

}

Address 

Eui48Address::ConvertTo (void) const

{

  return Address (GetType (), m_address, 6);

}

Eui48Address 

Eui48Address::ConvertFrom (const Address &address)

{

  NS_ASSERT (address.CheckCompatible (GetType (), 6));

  Eui48Address retval;

  address.CopyTo (retval.m_address);

  return retval;

}

uint8_t 

Eui48Address::GetType (void)

{

  static uint8_t type = Address::Register ();

  return type;

}

} // namespace ns3