Package dns :: Package rdtypes :: Package ANY :: Module SIG
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Source Code for Module dns.rdtypes.ANY.SIG

 1  # Copyright (C) 2003-2007, 2009, 2010 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. 
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 8  # THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES 
 9  # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 
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14  # OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 
15   
16  import struct 
17   
18  import dns.rdtypes.sigbase 
19   
20 -class SIG(dns.rdtypes.sigbase.SIGBase):
21 """SIG record"""
22 - def to_digestable(self, origin = None):
23 return struct.pack('!HBBIIIH', self.type_covered, 24 self.algorithm, self.labels, 25 self.original_ttl, self.expiration, 26 self.inception, self.key_tag) + \ 27 self.signer.to_digestable(origin) + \ 28 self.signature
29 - def _cmp(self, other):
30 hs = struct.pack('!HBBIIIH', self.type_covered, 31 self.algorithm, self.labels, 32 self.original_ttl, self.expiration, 33 self.inception, self.key_tag) 34 ho = struct.pack('!HBBIIIH', other.type_covered, 35 other.algorithm, other.labels, 36 other.original_ttl, other.expiration, 37 other.inception, other.key_tag) 38 v = cmp(hs, ho) 39 if v == 0: 40 v = cmp(self.signer, other.signer) 41 if v == 0: 42 v = cmp(self.signature, other.signature) 43 return v
44