1 # Copyright (C) 2003-2007, 2009-2011 Nominum, Inc.
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.
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.
20 class NSAP(dns.rdata.Rdata):
27 __slots__ = ['address']
29 def __init__(self, rdclass, rdtype, address):
30 super(NSAP, self).__init__(rdclass, rdtype)
31 self.address = address
33 def to_text(self, origin=None, relativize=True, **kw):
34 return "0x%s" % self.address.encode('hex_codec')
36 def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
37 address = tok.get_string()
39 if address[0:2] != '0x':
40 raise dns.exception.SyntaxError('string does not start with 0x')
41 address = address[2:].replace('.', '')
42 if len(address) % 2 != 0:
43 raise dns.exception.SyntaxError('hexstring has odd length')
44 address = address.decode('hex_codec')
45 return cls(rdclass, rdtype, address)
47 from_text = classmethod(from_text)
49 def to_wire(self, file, compress = None, origin = None):
50 file.write(self.address)
52 def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
53 address = wire[current : current + rdlen].unwrap()
54 return cls(rdclass, rdtype, address)
56 from_wire = classmethod(from_wire)
58 def _cmp(self, other):
59 return cmp(self.address, other.address)