def parse_mask(cls, mask):
if mask.startswith('0x'):
if len(mask) != 10:
raise MaskValidationError(mask)
else:
try:
mask_int = int(mask, 16)
format = MASK_FORMAT.HEX
except ValueError:
raise MaskValidationError(mask)
elif mask.startswith('/'):
format = MASK_FORMAT.PREFIX
prefixlen, mask_int = cls._parse_prefixlen(mask[1:])
else:
try:
prefixlen, mask_int = cls._parse_prefixlen(mask)
format = MASK_FORMAT.PREFIX
except MaskValidationError:
try:
mask_int = _net.parse_ipv4(mask)
format = MASK_FORMAT.DOTTED_QUAD
except ValueError:
raise MaskValidationError(mask)
# We don't allow non-contiguous netmasks.
try:
prefixlen = Mask4._bit_mask_map[mask_int]
except KeyError:
raise MaskValidationError(mask)
return prefixlen, mask_int, format
def parse_mask(cls, mask):
if mask.startswith('0x'):
if len(mask) != 10:
raise MaskValidationError(mask)
else:
try:
mask_int = int(mask, 16)
format = MASK_FORMAT.HEX
except ValueError:
raise MaskValidationError(mask)
elif mask.startswith('/'):
format = MASK_FORMAT.PREFIX
prefixlen, mask_int = cls._parse_prefixlen(mask[1:])
else:
try:
prefixlen, mask_int = cls._parse_prefixlen(mask)
format = MASK_FORMAT.PREFIX
except MaskValidationError:
try:
mask_int = _net.parse_ipv4(mask)
format = MASK_FORMAT.DOTTED_QUAD
except ValueError:
raise MaskValidationError(mask)
# We don't allow non-contiguous netmasks.
try:
prefixlen = Mask4._bit_mask_map[mask_int]
except KeyError:
raise MaskValidationError(mask)
return prefixlen, mask_int, format
def is_ipv4(address):
"""Determine if an address is an IPv4 address.
:Parameters:
- `address`: The IP address string to check.
:Return:
Returns True if it is a v4 address, otherwise False.
"""
return _net.parse_ipv4(address) is not None
def is_ipv4(address):
"""Determine if an address is an IPv4 address.
:Parameters:
- `address`: The IP address string to check.
:Return:
Returns True if it is a v4 address, otherwise False.
"""
return _net.parse_ipv4(address) is not None
def ptoh(address):
"""Converts from presentation format or ip address string to packed address
in host-byte order.
:Parameters:
- `address`: The IP address string to convert.
:Return:
Returns the packed ip address.
:Exceptions:
- `IPValidationError`: if address is not valid v4 or v6 address.
"""
result = _net.parse_ipv4(address)
if result is None:
return IPv6.parse_ip(address)
return result
def ptoh(address):
"""Converts from presentation format or ip address string to packed address
in host-byte order.
:Parameters:
- `address`: The IP address string to convert.
:Return:
Returns the packed ip address.
:Exceptions:
- `IPValidationError`: if address is not valid v4 or v6 address.
"""
result = _net.parse_ipv4(address)
if result is None:
return IPv6.parse_ip(address)
return result
def parse_ip(address):
ip = _net.parse_ipv4(address)
if ip is None:
raise IPValidationError(address)
return ip
def parse_ip(address):
ip = _net.parse_ipv4(address)
if ip is None:
raise IPValidationError(address)
return ip