diff options
Diffstat (limited to 'lib/dnspython/dns/rdtypes/IN/A.py')
-rw-r--r-- | lib/dnspython/dns/rdtypes/IN/A.py | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/lib/dnspython/dns/rdtypes/IN/A.py b/lib/dnspython/dns/rdtypes/IN/A.py new file mode 100644 index 0000000000..e05f204a2f --- /dev/null +++ b/lib/dnspython/dns/rdtypes/IN/A.py @@ -0,0 +1,57 @@ +# Copyright (C) 2003-2007, 2009, 2010 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.ipv4 +import dns.rdata +import dns.tokenizer + +class A(dns.rdata.Rdata): + """A record. + + @ivar address: an IPv4 address + @type address: string (in the standard "dotted quad" format)""" + + __slots__ = ['address'] + + def __init__(self, rdclass, rdtype, address): + super(A, self).__init__(rdclass, rdtype) + # check that it's OK + junk = dns.ipv4.inet_aton(address) + self.address = address + + def to_text(self, origin=None, relativize=True, **kw): + return self.address + + def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True): + address = tok.get_identifier() + tok.get_eol() + return cls(rdclass, rdtype, address) + + from_text = classmethod(from_text) + + def to_wire(self, file, compress = None, origin = None): + file.write(dns.ipv4.inet_aton(self.address)) + + def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None): + address = dns.ipv4.inet_ntoa(wire[current : current + rdlen]) + return cls(rdclass, rdtype, address) + + from_wire = classmethod(from_wire) + + def _cmp(self, other): + sa = dns.ipv4.inet_aton(self.address) + oa = dns.ipv4.inet_aton(other.address) + return cmp(sa, oa) |