# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
# Copyright (C) 2003-2007, 2009-2011 Nominum, Inc.
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose with or without fee is hereby granted,
# provided that the above copyright notice and this permission notice
# appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
import dns.exception
import dns.immutable
import dns.ipv4
import dns.rdata
import dns.tokenizer
@dns.immutable.immutable
class A(dns.rdata.Rdata):
"""A record."""
__slots__ = ["address"]
def __init__(self, rdclass, rdtype, address):
super().__init__(rdclass, rdtype)
self.address = self._as_ipv4_address(address)
def to_text(self, origin=None, relativize=True, **kw):
return self.address
@classmethod
def from_text(
cls, rdclass, rdtype, tok, origin=None, relativize=True, relativize_to=None
):
address = tok.get_identifier()
return cls(rdclass, rdtype, address)
def _to_wire(self, file, compress=None, origin=None, canonicalize=False):
file.write(dns.ipv4.inet_aton(self.address))
@classmethod
def from_wire_parser(cls, rdclass, rdtype, parser, origin=None):
address = parser.get_remaining()
return cls(rdclass, rdtype, address)
