---

flags.py

# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license # Copyright (C) 2001-2017 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. """DNS Message Flags.""" import enum from typing import Any # Standard DNS flags class Flag(enum.IntFlag): #: Query Response QR = 0x8000 #: Authoritative Answer AA = 0x0400 #: Truncated Response TC = 0x0200 #: Recursion Desired RD = 0x0100 #: Recursion Available RA = 0x0080 #: Authentic Data AD = 0x0020 #: Checking Disabled CD = 0x0010 # EDNS flags class EDNSFlag(enum.IntFlag): #: DNSSEC answer OK DO = 0x8000 def _from_text(text: str, enum_class: Any) -> int: flags = 0 tokens = text.split() for t in tokens: flags |= enum_class[t.upper()] return flags def _to_text(flags: int, enum_class: Any) -> str: text_flags = [] for k, v in enum_class.__members__.items(): if flags & v != 0: text_flags.append(k) return " ".join(text_flags) def from_text(text: str) -> int: """Convert a space-separated list of flag text values into a flags value. Returns an ``int`` """ return _from_text(text, Flag) def to_text(flags: int) -> str: """Convert a flags value into a space-separated list of flag text values. Returns a ``str``. """ return _to_text(flags, Flag) def edns_from_text(text: str) -> int: """Convert a space-separated list of EDNS flag text values into a EDNS flags value. Returns an ``int`` """ return _from_text(text, EDNSFlag) def edns_to_text(flags: int) -> str: """Convert an EDNS flags value into a space-separated list of EDNS flag text values. Returns a ``str``. """ return _to_text(flags, EDNSFlag) ### BEGIN generated Flag constants QR = Flag.QR AA = Flag.AA TC = Flag.TC RD = Flag.RD RA = Flag.RA AD = Flag.AD CD = Flag.CD ### END generated Flag constants ### BEGIN generated EDNSFlag constants DO = EDNSFlag.DO ### END generated EDNSFlag constants

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docroot: /home/induvedam/public_html

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curdir: /usr/lib/python3.9/site-packages/dns

	.		4096
	..		4096
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	__pycache__		8192
X	_asyncbackend.py		2360
X	_asyncio_backend.py		8971
X	_ddr.py		5247
X	_features.py		2384
X	_immutable_ctx.py		2459
X	asyncbackend.py		2796
X	asyncquery.py		26850
X	asyncresolver.py		17852
X	dnssec.py		40693
	dnssecalgs		142
X	dnssectypes.py		1799
X	e164.py		3978
X	edns.py		15263
X	entropy.py		4242
X	enum.py		3691
X	exception.py		5957
X	flags.py		2750
X	grange.py		2148
X	immutable.py		2017
X	inet.py		5772
X	ipv4.py		2552
X	ipv6.py		6600
X	message.py		65993
X	name.py		42672
X	namedict.py		4000
X	nameserver.py		9909
X	node.py		12663
X	opcode.py		2730
X	query.py		54832
	quic		113
X	rcode.py		4156
X	rdata.py		29456
X	rdataclass.py		2984
X	rdataset.py		16756
X	rdatatype.py		7339
	rdtypes		4096
X	renderer.py		11254
X	resolver.py		73552
X	reversename.py		3828
X	rrset.py		9170
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X	set.py		9088
X	tokenizer.py		23583
X	transaction.py		22636
X	tsig.py		11413
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X	ttl.py		2979
X	update.py		12243
X	version.py		1926
X	versioned.py		11765
X	win32util.py		9107
X	wire.py		2830
X	xfr.py		13273
X	zone.py		52086
X	zonefile.py		27929
X	zonetypes.py		690