Move dnspython to third_party.
[bbaumbach/samba-autobuild/.git] / third_party / dnspython / dns / rdtypes / ANY / X25.py
1 # Copyright (C) 2003-2007, 2009-2011 Nominum, Inc.
2 #
3 # Permission to use, copy, modify, and distribute this software and its
4 # documentation for any purpose with or without fee is hereby granted,
5 # provided that the above copyright notice and this permission notice
6 # appear in all copies.
7 #
8 # THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
9 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
11 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
14 # OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15
16 import dns.exception
17 import dns.rdata
18 import dns.tokenizer
19
20 class X25(dns.rdata.Rdata):
21     """X25 record
22
23     @ivar address: the PSDN address
24     @type address: string
25     @see: RFC 1183"""
26
27     __slots__ = ['address']
28
29     def __init__(self, rdclass, rdtype, address):
30         super(X25, self).__init__(rdclass, rdtype)
31         self.address = address
32
33     def to_text(self, origin=None, relativize=True, **kw):
34         return '"%s"' % dns.rdata._escapify(self.address)
35
36     def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
37         address = tok.get_string()
38         tok.get_eol()
39         return cls(rdclass, rdtype, address)
40
41     from_text = classmethod(from_text)
42
43     def to_wire(self, file, compress = None, origin = None):
44         l = len(self.address)
45         assert l < 256
46         byte = chr(l)
47         file.write(byte)
48         file.write(self.address)
49
50     def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
51         l = ord(wire[current])
52         current += 1
53         rdlen -= 1
54         if l != rdlen:
55             raise dns.exception.FormError
56         address = wire[current : current + l].unwrap()
57         return cls(rdclass, rdtype, address)
58
59     from_wire = classmethod(from_wire)
60
61     def _cmp(self, other):
62         return cmp(self.address, other.address)