def pack(self, value=None):
"""Pack the value as a binary representation.
If the passed value (or the self._value) is zero (int), then the pack
will assume that the value to be packed is '00:00:00:00:00:00'.
Returns
bytes: The binary representation.
Raises:
struct.error: If the value does not fit the binary format.
"""
if isinstance(value, type(self)):
return value.pack()
if value is None:
value = self._value
if value == 0:
value = '00:00:00:00:00:00'
value = value.split(':')
try:
return struct.pack('!6B', *[int(x, 16) for x in value])
except struct.error as err:
msg = "HWAddress error. "
msg += "Class: {}, struct error: {} ".format(
type(value).__name__, err)
raise exceptions.PackException(msg)
def pack(self, value=None):
"""Pack the value as a binary representation.
If the value is None the self._value will be used to pack.
Args:
value (str): IP Address with ipv4 format.
Returns
bytes: The binary representation.
Raises:
struct.error: If the value does not fit the binary format.
"""
if isinstance(value, type(self)):
return value.pack()
if value is None:
value = self._value
if value.find('/') >= 0:
value = value.split('/')[0]
try:
value = value.split('.')
return struct.pack('!4B', *[int(x) for x in value])
except struct.error as err:
msg = "IPAddress error. "
msg += "Class: {}, struct error: {} ".format(
type(value).__name__, err)
raise exceptions.PackException(msg)
def pack(self, value=None):
"""Pack the value as a binary representation.
Returns:
bytes: The binary representation.
"""
if isinstance(value, type(self)):
return value.pack()
if value is None:
value = self
else:
container = type(self)(items=None)
container.extend(value)
value = container
bin_message = b''
try:
for item in value:
bin_message += item.pack()
return bin_message
except exceptions.PackException as err:
msg = "{} pack error: {}".format(type(self).__name__, err)
raise exceptions.PackException(msg)
def pack(self, value=None):
"""Pack the value as a binary representation.
Returns:
bytes: The binary representation.
Raises:
struct.error: If the value does not fit the binary format.
"""
if isinstance(value, type(self)):
return value.pack()
try:
if value is None:
value = self.value
packed = struct.pack(self._fmt, bytes(value, 'ascii'))
return packed[:-1] + b'\0' # null-terminated
except struct.error as err:
msg = "Char Pack error. "
msg += "Class: {}, struct error: {} ".format(
type(value).__name__, err)
raise exceptions.PackException(msg)
