# 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 Street, Fifth Floor, Boston, MA 02110-1301 USA
#
# MACAddress.py
# Copyright (C) 2013 Peter Newman
"""The MACAddress class."""
__author__ = 'nomis52@gmail.com (Simon Newton)'
MAC_ADDRESS_LENGTH = 6
class Error(Exception):
"""Base Error Class."""
class MACAddress(object):
"""Represents a MAC Address."""
def __init__(self, mac_address):
"""Create a new MAC Address object.
Args:
mac_address: The byte array representation of the MAC Address, e.g.
bytearray([0x01, 0x23, 0x45, 0x67, 0x89 0xab]).
"""
self._mac_address = mac_address
@property
def mac_address(self):
return self._mac_address
def __str__(self):
return ':'.join(format(x, '02x') for x in self._mac_address)
def __hash__(self):
return hash(str(self))
def __repr__(self):
return self.__str__()
def __cmp__(self, other):
if other is None:
return 1
return cmp(self.mac_address, other.mac_address)
@staticmethod
def FromString(mac_address_str):
"""Create a new MAC Address from a string.
Args:
mac_address_str: The string representation of the MAC Address, e.g.
01:23:45:67:89:ab or 98.76.54.fe.dc.ba.
"""
parts = mac_address_str.split(':')
if len(parts) != MAC_ADDRESS_LENGTH:
parts = mac_address_str.split('.')
if len(parts) != MAC_ADDRESS_LENGTH:
return None
try:
address = bytearray([int(parts[0], 16),
int(parts[1], 16),
int(parts[2], 16),
int(parts[3], 16),
int(parts[4], 16),
int(parts[5], 16)])
except ValueError:
return None
return MACAddress(address)