Gecko [ goons4good.org ]

Name	Size	Permission	Date
rdtypes	[ DIR ]	drwxr-xr-x	2022-07-26 09:09
__init__.py	1.3 KB	-rw-r--r--	2015-06-13 08:26
__init__.pyc	763 B	-rw-r--r--	2017-08-03 16:39
__init__.pyo	763 B	-rw-r--r--	2017-08-03 16:39
dnssec.py	14.35 KB	-rw-r--r--	2015-06-13 08:26
dnssec.pyc	13.41 KB	-rw-r--r--	2017-08-03 16:39
dnssec.pyo	13.32 KB	-rw-r--r--	2017-08-03 16:39
e164.py	3.01 KB	-rw-r--r--	2015-06-13 08:26
e164.pyc	2.75 KB	-rw-r--r--	2017-08-03 16:39
e164.pyo	2.75 KB	-rw-r--r--	2017-08-03 16:39
edns.py	4.22 KB	-rw-r--r--	2015-06-13 08:26
edns.pyc	5.16 KB	-rw-r--r--	2017-08-03 16:39
edns.pyo	5.16 KB	-rw-r--r--	2017-08-03 16:39
entropy.py	3.79 KB	-rw-r--r--	2015-06-13 08:26
entropy.pyc	3.68 KB	-rw-r--r--	2017-08-03 16:39
entropy.pyo	3.68 KB	-rw-r--r--	2017-08-03 16:39
exception.py	4.35 KB	-rw-r--r--	2015-06-13 08:26
exception.pyc	4.45 KB	-rw-r--r--	2017-08-03 16:39
exception.pyo	4.2 KB	-rw-r--r--	2017-08-03 16:39
flags.py	2.62 KB	-rw-r--r--	2015-06-13 08:26
flags.pyc	2.57 KB	-rw-r--r--	2017-08-03 16:39
flags.pyo	2.57 KB	-rw-r--r--	2017-08-03 16:39
grange.py	1.83 KB	-rw-r--r--	2015-06-13 08:26
grange.pyc	1.15 KB	-rw-r--r--	2017-08-03 16:39
grange.pyo	1.07 KB	-rw-r--r--	2017-08-03 16:39
hash.py	2.34 KB	-rw-r--r--	2015-06-13 08:26
hash.pyc	2.09 KB	-rw-r--r--	2017-08-03 16:39
hash.pyo	2.09 KB	-rw-r--r--	2017-08-03 16:39
inet.py	3.16 KB	-rw-r--r--	2015-06-13 08:26
inet.pyc	2.6 KB	-rw-r--r--	2017-08-03 16:39
inet.pyo	2.6 KB	-rw-r--r--	2017-08-03 16:39
ipv4.py	1.81 KB	-rw-r--r--	2015-06-13 08:26
ipv4.pyc	1.36 KB	-rw-r--r--	2017-08-03 16:39
ipv4.pyo	1.36 KB	-rw-r--r--	2017-08-03 16:39
ipv6.py	4.97 KB	-rw-r--r--	2015-06-13 08:26
ipv6.pyc	3.43 KB	-rw-r--r--	2017-08-03 16:39
ipv6.pyo	3.43 KB	-rw-r--r--	2017-08-03 16:39
message.py	41.52 KB	-rw-r--r--	2015-06-13 08:26
message.pyc	36.24 KB	-rw-r--r--	2017-08-03 16:39
message.pyo	36.24 KB	-rw-r--r--	2017-08-03 16:39
name.py	22.16 KB	-rw-r--r--	2015-06-13 08:26
name.pyc	23.3 KB	-rw-r--r--	2017-08-03 16:39
name.pyo	23.3 KB	-rw-r--r--	2017-08-03 16:39
namedict.py	2.06 KB	-rw-r--r--	2015-06-13 08:26
namedict.pyc	1.91 KB	-rw-r--r--	2017-08-03 16:39
namedict.pyo	1.91 KB	-rw-r--r--	2017-08-03 16:39
node.py	5.89 KB	-rw-r--r--	2015-06-13 08:26
node.pyc	6.13 KB	-rw-r--r--	2017-08-03 16:39
node.pyo	6.13 KB	-rw-r--r--	2017-08-03 16:39
opcode.py	2.54 KB	-rw-r--r--	2015-06-13 08:26
opcode.pyc	2.47 KB	-rw-r--r--	2017-08-03 16:39
opcode.pyo	2.47 KB	-rw-r--r--	2017-08-03 16:39
query.py	18.27 KB	-rw-r--r--	2017-08-03 16:39
query.pyc	15.46 KB	-rw-r--r--	2017-08-03 16:39
query.pyo	15.46 KB	-rw-r--r--	2017-08-03 16:39
rcode.py	3.02 KB	-rw-r--r--	2015-06-13 08:26
rcode.pyc	2.9 KB	-rw-r--r--	2017-08-03 16:39
rcode.pyo	2.9 KB	-rw-r--r--	2017-08-03 16:39
rdata.py	14.8 KB	-rw-r--r--	2015-06-13 08:26
rdata.pyc	16.12 KB	-rw-r--r--	2017-08-03 16:39
rdata.pyo	16.12 KB	-rw-r--r--	2017-08-03 16:39
rdataclass.py	3.21 KB	-rw-r--r--	2015-06-13 08:26
rdataclass.pyc	2.94 KB	-rw-r--r--	2017-08-03 16:39
rdataclass.pyo	2.94 KB	-rw-r--r--	2017-08-03 16:39
rdataset.py	11.25 KB	-rw-r--r--	2015-06-13 08:26
rdataset.pyc	11.02 KB	-rw-r--r--	2017-08-03 16:39
rdataset.pyo	10.97 KB	-rw-r--r--	2017-08-03 16:39
rdatatype.py	5.12 KB	-rw-r--r--	2015-06-13 08:26
rdatatype.pyc	5.35 KB	-rw-r--r--	2017-08-03 16:39
rdatatype.pyo	5.35 KB	-rw-r--r--	2017-08-03 16:39
renderer.py	11.63 KB	-rw-r--r--	2015-06-13 08:26
renderer.pyc	10.83 KB	-rw-r--r--	2017-08-03 16:39
renderer.pyo	10.73 KB	-rw-r--r--	2017-08-03 16:39
resolver.py	47.78 KB	-rw-r--r--	2017-08-03 16:39
resolver.pyc	38.95 KB	-rw-r--r--	2017-08-03 16:39
resolver.pyo	38.95 KB	-rw-r--r--	2017-08-03 16:39
reversename.py	3.03 KB	-rw-r--r--	2015-06-13 08:26
reversename.pyc	2.39 KB	-rw-r--r--	2017-08-03 16:39
reversename.pyo	2.39 KB	-rw-r--r--	2017-08-03 16:39
rrset.py	5.76 KB	-rw-r--r--	2015-06-13 08:26
rrset.pyc	6.14 KB	-rw-r--r--	2017-08-03 16:39
rrset.pyo	6.14 KB	-rw-r--r--	2017-08-03 16:39
set.py	7.66 KB	-rw-r--r--	2015-06-13 08:26
set.pyc	9.74 KB	-rw-r--r--	2017-08-03 16:39
set.pyo	9.74 KB	-rw-r--r--	2017-08-03 16:39
tokenizer.py	17.53 KB	-rw-r--r--	2015-06-13 08:26
tokenizer.pyc	16.85 KB	-rw-r--r--	2017-08-03 16:39
tokenizer.pyo	16.85 KB	-rw-r--r--	2017-08-03 16:39
tsig.py	7.98 KB	-rw-r--r--	2015-06-13 08:26
tsig.pyc	7.98 KB	-rw-r--r--	2017-08-03 16:39
tsig.pyo	7.98 KB	-rw-r--r--	2017-08-03 16:39
tsigkeyring.py	1.61 KB	-rw-r--r--	2015-06-13 08:26
tsigkeyring.pyc	1.16 KB	-rw-r--r--	2017-08-03 16:39
tsigkeyring.pyo	1.16 KB	-rw-r--r--	2017-08-03 16:39
ttl.py	2.16 KB	-rw-r--r--	2015-06-13 08:26
ttl.pyc	1.52 KB	-rw-r--r--	2017-08-03 16:39
ttl.pyo	1.52 KB	-rw-r--r--	2017-08-03 16:39
update.py	9.92 KB	-rw-r--r--	2015-06-13 08:26
update.pyc	8.25 KB	-rw-r--r--	2017-08-03 16:39
update.pyo	8.25 KB	-rw-r--r--	2017-08-03 16:39
version.py	1.24 KB	-rw-r--r--	2015-06-13 08:26
version.pyc	558 B	-rw-r--r--	2017-08-03 16:39
version.pyo	558 B	-rw-r--r--	2017-08-03 16:39
wiredata.py	2.53 KB	-rw-r--r--	2015-06-13 08:26
wiredata.pyc	2.18 KB	-rw-r--r--	2017-08-03 16:39
wiredata.pyo	2.18 KB	-rw-r--r--	2017-08-03 16:39
zone.py	37.92 KB	-rw-r--r--	2015-06-13 08:26
zone.pyc	33.44 KB	-rw-r--r--	2017-08-03 16:39
zone.pyo	33.44 KB	-rw-r--r--	2017-08-03 16:39

Rename

# Copyright (C) 2003-2007, 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.

"""IPv6 helper functions."""

import re

import dns.exception
import dns.ipv4

_leading_zero = re.compile(r'0+([0-9a-f]+)')

def inet_ntoa(address):
    """Convert a network format IPv6 address into text.

@param address: the binary address
    @type address: string
    @rtype: string
    @raises ValueError: the address isn't 16 bytes long
    """

if len(address) != 16:
        raise ValueError("IPv6 addresses are 16 bytes long")
    hex = address.encode('hex_codec')
    chunks = []
    i = 0
    l = len(hex)
    while i < l:
        chunk = hex[i : i + 4]
        # strip leading zeros.  we do this with an re instead of
        # with lstrip() because lstrip() didn't support chars until
        # python 2.2.2
        m = _leading_zero.match(chunk)
        if not m is None:
            chunk = m.group(1)
        chunks.append(chunk)
        i += 4
    #
    # Compress the longest subsequence of 0-value chunks to ::
    #
    best_start = 0
    best_len = 0
    start = -1
    last_was_zero = False
    for i in xrange(8):
        if chunks[i] != '0':
            if last_was_zero:
                end = i
                current_len = end - start
                if current_len > best_len:
                    best_start = start
                    best_len = current_len
                last_was_zero = False
        elif not last_was_zero:
            start = i
            last_was_zero = True
    if last_was_zero:
        end = 8
        current_len = end - start
        if current_len > best_len:
            best_start = start
            best_len = current_len
    if best_len > 1:
        if best_start == 0 and \
           (best_len == 6 or
            best_len == 5 and chunks[5] == 'ffff'):
            # We have an embedded IPv4 address
            if best_len == 6:
                prefix = '::'
            else:
                prefix = '::ffff:'
            hex = prefix + dns.ipv4.inet_ntoa(address[12:])
        else:
            hex = ':'.join(chunks[:best_start]) + '::' + \
                  ':'.join(chunks[best_start + best_len:])
    else:
        hex = ':'.join(chunks)
    return hex

_v4_ending = re.compile(r'(.*):(\d+\.\d+\.\d+\.\d+)$')
_colon_colon_start = re.compile(r'::.*')
_colon_colon_end = re.compile(r'.*::$')

def inet_aton(text):
    """Convert a text format IPv6 address into network format.

@param text: the textual address
    @type text: string
    @rtype: string
    @raises dns.exception.SyntaxError: the text was not properly formatted
    """

#
    # Our aim here is not something fast; we just want something that works.
    #

if text == '::':
        text = '0::'
    #
    # Get rid of the icky dot-quad syntax if we have it.
    #
    m = _v4_ending.match(text)
    if not m is None:
        b = dns.ipv4.inet_aton(m.group(2))
        text = "%s:%02x%02x:%02x%02x" % (m.group(1), ord(b[0]), ord(b[1]),
                                         ord(b[2]), ord(b[3]))
    #
    # Try to turn '::<whatever>' into ':<whatever>'; if no match try to
    # turn '<whatever>::' into '<whatever>:'
    #
    m = _colon_colon_start.match(text)
    if not m is None:
        text = text[1:]
    else:
        m = _colon_colon_end.match(text)
        if not m is None:
            text = text[:-1]
    #
    # Now canonicalize into 8 chunks of 4 hex digits each
    #
    chunks = text.split(':')
    l = len(chunks)
    if l > 8:
        raise dns.exception.SyntaxError
    seen_empty = False
    canonical = []
    for c in chunks:
        if c == '':
            if seen_empty:
                raise dns.exception.SyntaxError
            seen_empty = True
            for i in xrange(0, 8 - l + 1):
                canonical.append('0000')
        else:
            lc = len(c)
            if lc > 4:
                raise dns.exception.SyntaxError
            if lc != 4:
                c = ('0' * (4 - lc)) + c
            canonical.append(c)
    if l < 8 and not seen_empty:
        raise dns.exception.SyntaxError
    text = ''.join(canonical)

#
    # Finally we can go to binary.
    #
    try:
        return text.decode('hex_codec')
    except TypeError:
        raise dns.exception.SyntaxError

_mapped_prefix = '\x00' * 10 + '\xff\xff'

def is_mapped(address):
    return address.startswith(_mapped_prefix)