Source Code for Module dns.rdtypes.ANY.X25

 1  # Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license 
 2   
 3  # Copyright (C) 2003-2007, 2009-2011 Nominum, Inc. 
 4  # 
 5  # Permission to use, copy, modify, and distribute this software and its 
 6  # documentation for any purpose with or without fee is hereby granted, 
 7  # provided that the above copyright notice and this permission notice 
 8  # appear in all copies. 
 9  # 
10  # THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES 
11  # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 
12  # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR 
13  # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 
14  # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
15  # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 
16  # OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 
17   
18  import struct 
19   
20  import dns.exception 
21  import dns.rdata 
22  import dns.tokenizer 
23  from dns._compat import text_type 
24   
25   
26 -class X25(dns.rdata.Rdata): 
27   
28      """X25 record 
29   
30      @ivar address: the PSDN address 
31      @type address: string 
32      @see: RFC 1183""" 
33   
34      __slots__ = ['address'] 
35   
36 -    def __init__(self, rdclass, rdtype, address): 
37          super(X25, self).__init__(rdclass, rdtype) 
38          if isinstance(address, text_type): 
39              self.address = address.encode() 
40          else: 
41              self.address = address 
42   
43 -    def to_text(self, origin=None, relativize=True, **kw): 
44          return '"%s"' % dns.rdata._escapify(self.address) 
45   
46      @classmethod 
47 -    def from_text(cls, rdclass, rdtype, tok, origin=None, relativize=True): 
48          address = tok.get_string() 
49          tok.get_eol() 
50          return cls(rdclass, rdtype, address) 
51   
52 -    def to_wire(self, file, compress=None, origin=None): 
53          l = len(self.address) 
54          assert l < 256 
55          file.write(struct.pack('!B', l)) 
56          file.write(self.address) 
57   
58      @classmethod 
59 -    def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin=None): 
60          l = wire[current] 
61          current += 1 
62          rdlen -= 1 
63          if l != rdlen: 
64              raise dns.exception.FormError 
65          address = wire[current: current + l].unwrap() 
66          return cls(rdclass, rdtype, address) 
67