Revert "(experimental) force to use custom dns"

This reverts commit 2a6a5e62d4.
2019-04-28 18:11:11 +02:00
parent 2a6a5e62d4
commit 1747bc98db
100 changed files with 2 additions and 15717 deletions
@@ -1,124 +0,0 @@
-# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
-
-# Copyright (C) 2003-2017 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
-
-from ._compat import maybe_ord
-
-# 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.
-
-    *family* is an ``int``, the address family.
-
-    *text* is a ``text``, the textual address.
-
-    Raises ``NotImplementedError`` if the address family specified is not
-    implemented.
-
-    Returns a ``binary``.
-    """
-
-    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.
-
-    *family* is an ``int``, the address family.
-
-    *address* is a ``binary``, the network address in binary form.
-
-    Raises ``NotImplementedError`` if the address family specified is not
-    implemented.
-
-    Returns a ``text``.
-    """
-
-    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.
-
-    *text*, a ``text``, the textual address.
-
-    Raises ``ValueError`` if the address family cannot be determined
-    from the input.
-
-    Returns an ``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?
-
-    *text*, a ``text``, the textual address.
-
-    Raises ``ValueError`` if the address family cannot be determined
-    from the input.
-
-    Returns a ``bool``.
-    """
-
-    try:
-        first = maybe_ord(dns.ipv4.inet_aton(text)[0])
-        return first >= 224 and first <= 239
-    except Exception:
-        try:
-            first = maybe_ord(dns.ipv6.inet_aton(text)[0])
-            return first == 255
-        except Exception:
-            raise ValueError