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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. 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 struct 17 18 import dns.rdtypes.sigbase 1921 """SIG record"""4423 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.signature30 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
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