Gecko [ dallasfobana2023.variationbd.com ]

Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
rdtypes	[ DIR ]	drwxr-xr-x
__init__.py	1.3 KB	-rw-r--r--
_compat.py	1.28 KB	-rw-r--r--
dnssec.py	14.44 KB	-rw-r--r--
e164.py	3.07 KB	-rw-r--r--
edns.py	4.28 KB	-rw-r--r--
entropy.py	4.36 KB	-rw-r--r--
exception.py	4.52 KB	-rw-r--r--
flags.py	2.6 KB	-rw-r--r--
grange.py	1.93 KB	-rw-r--r--
hash.py	1.07 KB	-rw-r--r--
inet.py	3.17 KB	-rw-r--r--
ipv4.py	1.98 KB	-rw-r--r--
ipv6.py	5.17 KB	-rw-r--r--
message.py	42.12 KB	-rw-r--r--
name.py	28.74 KB	-rw-r--r--
namedict.py	3.59 KB	-rw-r--r--
node.py	5.91 KB	-rw-r--r--
opcode.py	2.48 KB	-rw-r--r--
query.py	19.18 KB	-rw-r--r--
rcode.py	3.03 KB	-rw-r--r--
rdata.py	14.65 KB	-rw-r--r--
rdataclass.py	3.18 KB	-rw-r--r--
rdataset.py	11.29 KB	-rw-r--r--
rdatatype.py	5.21 KB	-rw-r--r--
renderer.py	11.64 KB	-rw-r--r--
resolver.py	50.88 KB	-rw-r--r--
reversename.py	3.23 KB	-rw-r--r--
rrset.py	5.85 KB	-rw-r--r--
set.py	7.53 KB	-rw-r--r--
tokenizer.py	17.88 KB	-rw-r--r--
tsig.py	7.54 KB	-rw-r--r--
tsigkeyring.py	1.7 KB	-rw-r--r--
ttl.py	2.23 KB	-rw-r--r--
update.py	9.78 KB	-rw-r--r--
version.py	1.23 KB	-rw-r--r--
wiredata.py	3.64 KB	-rw-r--r--
zone.py	39.09 KB	-rw-r--r--

Code Editor : inet.py

# 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.

"""Generic Internet address helper functions."""

import socket

import dns.ipv4
import dns.ipv6

# We assume that AF_INET is always defined.

AF_INET = socket.AF_INET

# AF_INET6 might not be defined in the socket module, but we need it.
# We'll try to use the socket module's value, and if it doesn't work,
# we'll use our own value.

try:
    AF_INET6 = socket.AF_INET6
except AttributeError:
    AF_INET6 = 9999

def inet_pton(family, text):
    """Convert the textual form of a network address into its binary form.

@param family: the address family
    @type family: int
    @param text: the textual address
    @type text: string
    @raises NotImplementedError: the address family specified is not
    implemented.
    @rtype: string
    """

if family == AF_INET:
        return dns.ipv4.inet_aton(text)
    elif family == AF_INET6:
        return dns.ipv6.inet_aton(text)
    else:
        raise NotImplementedError

def inet_ntop(family, address):
    """Convert the binary form of a network address into its textual form.

@param family: the address family
    @type family: int
    @param address: the binary address
    @type address: string
    @raises NotImplementedError: the address family specified is not
    implemented.
    @rtype: string
    """
    if family == AF_INET:
        return dns.ipv4.inet_ntoa(address)
    elif family == AF_INET6:
        return dns.ipv6.inet_ntoa(address)
    else:
        raise NotImplementedError

def af_for_address(text):
    """Determine the address family of a textual-form network address.

@param text: the textual address
    @type text: string
    @raises ValueError: the address family cannot be determined from the input.
    @rtype: int
    """
    try:
        dns.ipv4.inet_aton(text)
        return AF_INET
    except Exception:
        try:
            dns.ipv6.inet_aton(text)
            return AF_INET6
        except:
            raise ValueError

def is_multicast(text):
    """Is the textual-form network address a multicast address?

@param text: the textual address
    @raises ValueError: the address family cannot be determined from the input.
    @rtype: bool
    """
    try:
        first = ord(dns.ipv4.inet_aton(text)[0])
        return first >= 224 and first <= 239
    except Exception:
        try:
            first = ord(dns.ipv6.inet_aton(text)[0])
            return first == 255
        except Exception:
            raise ValueError

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Code Editor : inet.py