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📄 _compat.py (1,313 bytes)	1.28 KB	0644	✍️ ⬇️ 🗑️
📄 dnssec.py (14,791 bytes)	14.44 KB	0644	✍️ ⬇️ 🗑️
📄 e164.py (3,147 bytes)	3.07 KB	0644	✍️ ⬇️ 🗑️
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📄 inet.py (3,242 bytes)	3.17 KB	0644	✍️ ⬇️ 🗑️
📄 ipv4.py (2,031 bytes)	1.98 KB	0644	✍️ ⬇️ 🗑️
📄 ipv6.py (5,293 bytes)	5.17 KB	0644	✍️ ⬇️ 🗑️
📄 message.py (43,129 bytes)	42.12 KB	0644	✍️ ⬇️ 🗑️
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📄 opcode.py (2,538 bytes)	2.48 KB	0644	✍️ ⬇️ 🗑️
📄 query.py (19,645 bytes)	19.18 KB	0644	✍️ ⬇️ 🗑️
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📄 rdatatype.py (5,339 bytes)	5.21 KB	0644	✍️ ⬇️ 🗑️
📄 renderer.py (11,923 bytes)	11.64 KB	0644	✍️ ⬇️ 🗑️
📄 resolver.py (52,105 bytes)	50.88 KB	0644	✍️ ⬇️ 🗑️
📄 reversename.py (3,311 bytes)	3.23 KB	0644	✍️ ⬇️ 🗑️
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✍️ Editing: inet.py

            File: /usr/lib/python3.6/site-packages/dns/inet.py

            Size: 3.17 KB | 
            Last Modified: 2016-09-20 23:24:02        

# 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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✍️ Editing: inet.py

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