PATH:
opt
/
hc_python
/
lib
/
python3.12
/
site-packages
/
dns
# 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. """IPv4 helper functions.""" import struct from typing import Union import dns.exception def inet_ntoa(address: bytes) -> str: """Convert an IPv4 address in binary form to text form. *address*, a ``bytes``, the IPv4 address in binary form. Returns a ``str``. """ if len(address) != 4: raise dns.exception.SyntaxError return "%u.%u.%u.%u" % (address[0], address[1], address[2], address[3]) def inet_aton(text: Union[str, bytes]) -> bytes: """Convert an IPv4 address in text form to binary form. *text*, a ``str`` or ``bytes``, the IPv4 address in textual form. Returns a ``bytes``. """ if not isinstance(text, bytes): btext = text.encode() else: btext = text parts = btext.split(b".") if len(parts) != 4: raise dns.exception.SyntaxError for part in parts: if not part.isdigit(): raise dns.exception.SyntaxError if len(part) > 1 and part[0] == ord("0"): # No leading zeros raise dns.exception.SyntaxError try: b = [int(part) for part in parts] return struct.pack("BBBB", *b) except Exception: raise dns.exception.SyntaxError def canonicalize(text: Union[str, bytes]) -> str: """Verify that *address* is a valid text form IPv4 address and return its canonical text form. *text*, a ``str`` or ``bytes``, the IPv4 address in textual form. Raises ``dns.exception.SyntaxError`` if the text is not valid. """ # Note that inet_aton() only accepts canonial form, but we still run through # inet_ntoa() to ensure the output is a str. return dns.ipv4.inet_ntoa(dns.ipv4.inet_aton(text))
[-] dnssectypes.py
[edit]
[-] zonefile.py
[edit]
[-] win32util.py
[edit]
[-] xfr.py
[edit]
[-] ipv4.py
[edit]
[-] rcode.py
[edit]
[-] e164.py
[edit]
[+]
__pycache__
[-] versioned.py
[edit]
[-] name.py
[edit]
[-] zonetypes.py
[edit]
[-] __init__.py
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[-] namedict.py
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[-] nameserver.py
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[-] update.py
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[-] tsigkeyring.py
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[-] inet.py
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[-] grange.py
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[-] tokenizer.py
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[-] enum.py
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[-] flags.py
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[+]
dnssecalgs
[-] _trio_backend.py
[edit]
[-] rdata.py
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[-] wire.py
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[-] tsig.py
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[-] _immutable_ctx.py
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[-] rdataclass.py
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[-] _ddr.py
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[-] immutable.py
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[-] query.py
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[-] entropy.py
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[-] _asyncio_backend.py
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[-] transaction.py
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[+]
rdtypes
[-] asyncquery.py
[edit]
[+]
..
[-] zone.py
[edit]
[-] set.py
[edit]
[-] exception.py
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[-] opcode.py
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[-] asyncbackend.py
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[-] _features.py
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[-] dnssec.py
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[-] rrset.py
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[-] reversename.py
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[-] rdatatype.py
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[-] resolver.py
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[-] message.py
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[-] _asyncbackend.py
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[-] ipv6.py
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[-] asyncresolver.py
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[-] renderer.py
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[-] version.py
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[-] edns.py
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[-] serial.py
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[-] node.py
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[-] ttl.py
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[-] py.typed
[edit]
[+]
quic
[-] rdataset.py
[edit]