# Copyright (C) 2004-2007, 2009-2011 Nominum, Inc. # # Permission to use, copy, modify, and distribute this software and its # documentation for any purpose with or without fee is hereby granted, # provided that the above copyright notice and this permission notice # appear in all copies. # # THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT # OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. import struct import binascii import dns.exception import dns.rdata from dns._compat import text_type class NSEC3PARAM(dns.rdata.Rdata): """NSEC3PARAM record @ivar algorithm: the hash algorithm number @type algorithm: int @ivar flags: the flags @type flags: int @ivar iterations: the number of iterations @type iterations: int @ivar salt: the salt @type salt: string""" __slots__ = ['algorithm', 'flags', 'iterations', 'salt'] def __init__(self, rdclass, rdtype, algorithm, flags, iterations, salt): super(NSEC3PARAM, self).__init__(rdclass, rdtype) self.algorithm = algorithm self.flags = flags self.iterations = iterations if isinstance(salt, text_type): self.salt = salt.encode() else: self.salt = salt def to_text(self, origin=None, relativize=True, **kw): if self.salt == b'': salt = '-' else: salt = binascii.hexlify(self.salt).decode() return '%u %u %u %s' % (self.algorithm, self.flags, self.iterations, salt) @classmethod def from_text(cls, rdclass, rdtype, tok, origin=None, relativize=True): algorithm = tok.get_uint8() flags = tok.get_uint8() iterations = tok.get_uint16() salt = tok.get_string() if salt == '-': salt = '' else: salt = binascii.unhexlify(salt.encode()) tok.get_eol() return cls(rdclass, rdtype, algorithm, flags, iterations, salt) def to_wire(self, file, compress=None, origin=None): l = len(self.salt) file.write(struct.pack("!BBHB", self.algorithm, self.flags, self.iterations, l)) file.write(self.salt) @classmethod def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin=None): (algorithm, flags, iterations, slen) = \ struct.unpack('!BBHB', wire[current: current + 5]) current += 5 rdlen -= 5 salt = wire[current: current + slen].unwrap() current += slen rdlen -= slen if rdlen != 0: raise dns.exception.FormError return cls(rdclass, rdtype, algorithm, flags, iterations, salt)
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__pycache__ | Folder | 0755 |
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AFSDB.py | File | 1.8 KB | 0644 |
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AVC.py | File | 950 B | 0644 |
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CAA.py | File | 2.56 KB | 0644 |
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CDNSKEY.py | File | 1 KB | 0644 |
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CDS.py | File | 875 B | 0644 |
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CERT.py | File | 3.86 KB | 0644 |
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CNAME.py | File | 1.06 KB | 0644 |
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CSYNC.py | File | 4.54 KB | 0644 |
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DLV.py | File | 864 B | 0644 |
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DNAME.py | File | 979 B | 0644 |
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DNSKEY.py | File | 1 KB | 0644 |
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DS.py | File | 873 B | 0644 |
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EUI48.py | File | 1.1 KB | 0644 |
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EUI64.py | File | 1.11 KB | 0644 |
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GPOS.py | File | 5.24 KB | 0644 |
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HINFO.py | File | 2.6 KB | 0644 |
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HIP.py | File | 4.05 KB | 0644 |
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ISDN.py | File | 3.19 KB | 0644 |
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LOC.py | File | 11.98 KB | 0644 |
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MX.py | File | 873 B | 0644 |
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NS.py | File | 873 B | 0644 |
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NSEC.py | File | 4.58 KB | 0644 |
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NSEC3.py | File | 6.91 KB | 0644 |
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NSEC3PARAM.py | File | 3.03 KB | 0644 |
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PTR.py | File | 875 B | 0644 |
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RP.py | File | 3 KB | 0644 |
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RRSIG.py | File | 5.53 KB | 0644 |
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RT.py | File | 891 B | 0644 |
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SOA.py | File | 4.41 KB | 0644 |
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SPF.py | File | 899 B | 0644 |
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SSHFP.py | File | 2.76 KB | 0644 |
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TLSA.py | File | 2.89 KB | 0644 |
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TXT.py | File | 878 B | 0644 |
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URI.py | File | 2.83 KB | 0644 |
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X25.py | File | 2.07 KB | 0644 |
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__init__.py | File | 1.19 KB | 0644 |
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