ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: usr / lib64 / python2.7 / site-packages / dns

# 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

[-] node.pyo [edit]
[-] tokenizer.pyc [edit]
[-] tokenizer.py [edit]
[-] e164.pyc [edit]
[-] rcode.pyc [edit]
[-] rdataset.pyc [edit]
[-] inet.pyc [edit]
[-] __init__.pyo [edit]
[-] rdataclass.pyo [edit]
[-] edns.py [edit]
[-] flags.py [edit]
[-] tsig.py [edit]
[-] update.pyo [edit]
[-] edns.pyo [edit]
[-] renderer.py [edit]
[-] message.py [edit]
[-] dnssec.py [edit]
[-] query.py [edit]
[-] ttl.pyc [edit]
[-] opcode.py [edit]
[-] rcode.pyo [edit]
[+] ..
[-] reversename.py [edit]
[-] tsig.pyo [edit]
[-] rdatatype.pyc [edit]
[-] dnssec.pyo [edit]
[-] resolver.pyo [edit]
[-] renderer.pyc [edit]
[-] e164.pyo [edit]
[-] rdataset.py [edit]
[-] inet.pyo [edit]
[-] rdatatype.py [edit]
[-] query.pyo [edit]
[-] zone.py [edit]
[-] ipv6.py [edit]
[-] __init__.pyc [edit]
[-] namedict.py [edit]
[-] hash.py [edit]
[-] ipv6.pyo [edit]
[-] grange.pyc [edit]
[-] set.pyc [edit]
[-] inet.py [edit]
[-] exception.pyc [edit]
[-] rdataclass.py [edit]
[-] rrset.pyc [edit]
[-] edns.pyc [edit]
[-] zone.pyo [edit]
[-] ttl.pyo [edit]
[-] grange.pyo [edit]
[-] dnssec.pyc [edit]
[-] e164.py [edit]
[-] message.pyc [edit]
[-] rrset.pyo [edit]
[-] entropy.pyo [edit]
[-] flags.pyc [edit]
[-] node.pyc [edit]
[+] rdtypes
[-] rdata.py [edit]
[-] ipv4.pyo [edit]
[-] hash.pyo [edit]
[-] rdata.pyo [edit]
[-] version.pyo [edit]
[-] exception.py [edit]
[-] tsigkeyring.pyc [edit]
[-] rcode.py [edit]
[-] rdata.pyc [edit]
[-] wiredata.py [edit]
[-] opcode.pyo [edit]
[-] message.pyo [edit]
[-] name.pyc [edit]
[-] version.py [edit]
[-] ttl.py [edit]
[-] update.py [edit]
[-] wiredata.pyc [edit]
[-] grange.py [edit]
[-] ipv6.pyc [edit]
[-] tokenizer.pyo [edit]
[-] name.py [edit]
[-] version.pyc [edit]
[-] namedict.pyc [edit]
[-] hash.pyc [edit]
[-] name.pyo [edit]
[-] tsigkeyring.pyo [edit]
[-] zone.pyc [edit]
[-] renderer.pyo [edit]
[-] set.py [edit]
[-] resolver.py [edit]
[-] rdataset.pyo [edit]
[-] reversename.pyc [edit]
[-] namedict.pyo [edit]
[-] __init__.py [edit]
[-] set.pyo [edit]
[-] entropy.py [edit]
[-] opcode.pyc [edit]
[-] flags.pyo [edit]
[-] resolver.pyc [edit]
[-] ipv4.pyc [edit]
[-] wiredata.pyo [edit]
[-] ipv4.py [edit]
[-] node.py [edit]
[-] entropy.pyc [edit]
[-] tsig.pyc [edit]
[-] query.pyc [edit]
[-] tsigkeyring.py [edit]
[-] rdatatype.pyo [edit]
[-] rdataclass.pyc [edit]
[-] update.pyc [edit]
[-] rrset.py [edit]
[-] exception.pyo [edit]
[-] reversename.pyo [edit]