🐐 GOAT

🐐 GOAT Shell

Current path: lib/python3.6/site-packages/dns/

✏️ Editing: 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

📁 rdtypes | ✏️ Rename | 🗑️ Delete
📁 __pycache__ | ✏️ Rename | 🗑️ Delete
📄 dnssec.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 e164.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 edns.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 entropy.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 exception.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 flags.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 grange.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 hash.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 inet.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 ipv4.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 ipv6.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 message.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 name.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 namedict.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 node.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 opcode.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 query.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 rcode.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 rdata.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 rdataclass.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 rdataset.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 rdatatype.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 renderer.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 resolver.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 reversename.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 rrset.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 set.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 tokenizer.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 tsig.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 tsigkeyring.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 ttl.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 update.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 version.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 wiredata.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 zone.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 _compat.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 __init__.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete

🐐 GOAT Shell

✏️ Editing: inet.py

📤 Upload File

📁 Create Folder