| # Copyright (C) 2006, 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 |
| |
| class DHCID(dns.rdata.Rdata): |
| """DHCID record |
| |
| @ivar data: the data (the content of the RR is opaque as far as the |
| DNS is concerned) |
| @type data: string |
| @see: RFC 4701""" |
| |
| __slots__ = ['data'] |
| |
| def __init__(self, rdclass, rdtype, data): |
| super(DHCID, self).__init__(rdclass, rdtype) |
| self.data = data |
| |
| def to_text(self, origin=None, relativize=True, **kw): |
| return dns.rdata._base64ify(self.data) |
| |
| def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True): |
| chunks = [] |
| while 1: |
| t = tok.get().unescape() |
| if t.is_eol_or_eof(): |
| break |
| if not t.is_identifier(): |
| raise dns.exception.SyntaxError |
| chunks.append(t.value) |
| b64 = ''.join(chunks) |
| data = b64.decode('base64_codec') |
| return cls(rdclass, rdtype, data) |
| |
| from_text = classmethod(from_text) |
| |
| def to_wire(self, file, compress = None, origin = None): |
| file.write(self.data) |
| |
| def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None): |
| data = wire[current : current + rdlen] |
| return cls(rdclass, rdtype, data) |
| |
| from_wire = classmethod(from_wire) |
| |
| def _cmp(self, other): |
| return cmp(self.data, other.data) |
