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📁 ..
📄 __init__.py(1.3 KB)
📄 __init__.pyc(765 B)
📄 __init__.pyo(765 B)
📄 dnssec.py(14.37 KB)
📄 dnssec.pyc(13.46 KB)
📄 dnssec.pyo(13.38 KB)
📄 e164.py(3.01 KB)
📄 e164.pyc(2.76 KB)
📄 e164.pyo(2.76 KB)
📄 edns.py(4.21 KB)
📄 edns.pyc(5.2 KB)
📄 edns.pyo(5.2 KB)
📄 entropy.py(3.79 KB)
📄 entropy.pyc(3.7 KB)
📄 entropy.pyo(3.7 KB)
📄 exception.py(1.29 KB)
📄 exception.pyc(1.56 KB)
📄 exception.pyo(1.56 KB)
📄 flags.py(2.62 KB)
📄 flags.pyc(2.58 KB)
📄 flags.pyo(2.58 KB)
📄 grange.py(1.83 KB)
📄 grange.pyc(1.15 KB)
📄 grange.pyo(1.08 KB)
📄 hash.py(2.34 KB)
📄 hash.pyc(2.11 KB)
📄 hash.pyo(2.11 KB)
📄 inet.py(3.16 KB)
📄 inet.pyc(2.61 KB)
📄 inet.pyo(2.61 KB)
📄 ipv4.py(1.81 KB)
📄 ipv4.pyc(1.37 KB)
📄 ipv4.pyo(1.37 KB)
📄 ipv6.py(4.97 KB)
📄 ipv6.pyc(3.44 KB)
📄 ipv6.pyo(3.44 KB)
📄 message.py(41.63 KB)
📄 message.pyc(36.39 KB)
📄 message.pyo(36.39 KB)
📄 name.py(21.82 KB)
📄 name.pyc(23 KB)
📄 name.pyo(23 KB)
📄 namedict.py(2.06 KB)
📄 namedict.pyc(1.92 KB)
📄 namedict.pyo(1.92 KB)
📄 node.py(5.89 KB)
📄 node.pyc(6.15 KB)
📄 node.pyo(6.15 KB)
📄 opcode.py(2.55 KB)
📄 opcode.pyc(2.49 KB)
📄 opcode.pyo(2.49 KB)
📄 query.py(17.89 KB)
📄 query.pyc(15.31 KB)
📄 query.pyo(15.31 KB)
📄 rcode.py(3.03 KB)
📄 rcode.pyc(2.92 KB)
📄 rcode.pyo(2.92 KB)
📄 rdata.py(15.34 KB)
📄 rdata.pyc(16.59 KB)
📄 rdata.pyo(16.59 KB)
📄 rdataclass.py(3.22 KB)
📄 rdataclass.pyc(2.96 KB)
📄 rdataclass.pyo(2.96 KB)
📄 rdataset.py(11.28 KB)
📄 rdataset.pyc(11.08 KB)
📄 rdataset.pyo(11.03 KB)
📄 rdatatype.py(5.07 KB)
📄 rdatatype.pyc(5.29 KB)
📄 rdatatype.pyo(5.29 KB)
📁 rdtypes
📄 renderer.py(11.63 KB)
📄 renderer.pyc(10.85 KB)
📄 renderer.pyo(10.75 KB)
📄 resolver.py(45.35 KB)
📄 resolver.pyc(37.16 KB)
📄 resolver.pyo(37.16 KB)
📄 reversename.py(3.03 KB)
📄 reversename.pyc(2.4 KB)
📄 reversename.pyo(2.4 KB)
📄 rrset.py(5.76 KB)
📄 rrset.pyc(6.17 KB)
📄 rrset.pyo(6.17 KB)
📄 set.py(7.66 KB)
📄 set.pyc(9.81 KB)
📄 set.pyo(9.81 KB)
📄 tokenizer.py(17.54 KB)
📄 tokenizer.pyc(16.92 KB)
📄 tokenizer.pyo(16.92 KB)
📄 tsig.py(8.1 KB)
📄 tsig.pyc(8.08 KB)
📄 tsig.pyo(8.08 KB)
📄 tsigkeyring.py(1.61 KB)
📄 tsigkeyring.pyc(1.16 KB)
📄 tsigkeyring.pyo(1.16 KB)
📄 ttl.py(2.13 KB)
📄 ttl.pyc(1.48 KB)
📄 ttl.pyo(1.48 KB)
📄 update.py(9.92 KB)
📄 update.pyc(8.27 KB)
📄 update.pyo(8.27 KB)
📄 version.py(1.24 KB)
📄 version.pyc(560 B)
📄 version.pyo(560 B)
📄 wiredata.py(2.53 KB)
📄 wiredata.pyc(2.19 KB)
📄 wiredata.pyo(2.19 KB)
📄 zone.py(37.94 KB)
📄 zone.pyc(33.52 KB)
📄 zone.pyo(33.52 KB)

Editing: wiredata.py

# Copyright (C) 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.

"""DNS Wire Data Helper"""

import sys

import dns.exception

# Figure out what constant python passes for an unspecified slice bound.
# It's supposed to be sys.maxint, yet on 64-bit windows sys.maxint is 2^31 - 1
# but Python uses 2^63 - 1 as the constant.  Rather than making pointless
# extra comparisons, duplicating code, or weakening WireData, we just figure
# out what constant Python will use.

class _SliceUnspecifiedBound(str):
    def __getslice__(self, i, j):
        return j

_unspecified_bound = _SliceUnspecifiedBound('')[1:]

class WireData(str):
    # WireData is a string with stricter slicing
    def __getitem__(self, key):
        try:
            return WireData(super(WireData, self).__getitem__(key))
        except IndexError:
            raise dns.exception.FormError
    def __getslice__(self, i, j):
        try:
            if j == _unspecified_bound:
                # handle the case where the right bound is unspecified
                j = len(self)
            if i < 0 or j < 0:
                raise dns.exception.FormError
            # If it's not an empty slice, access left and right bounds
            # to make sure they're valid
            if i != j:
                super(WireData, self).__getitem__(i)
                super(WireData, self).__getitem__(j - 1)
            return WireData(super(WireData, self).__getslice__(i, j))
        except IndexError:
            raise dns.exception.FormError
    def __iter__(self):
        i = 0
        while 1:
            try:
                yield self[i]
                i += 1
            except dns.exception.FormError:
                raise StopIteration
    def unwrap(self):
        return str(self)

def maybe_wrap(wire):
    if not isinstance(wire, WireData):
        return WireData(wire)
    else:
        return wire

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