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authorS. Solomon Darnell2025-03-28 21:52:21 -0500
committerS. Solomon Darnell2025-03-28 21:52:21 -0500
commit4a52a71956a8d46fcb7294ac71734504bb09bcc2 (patch)
treeee3dc5af3b6313e921cd920906356f5d4febc4ed /.venv/lib/python3.12/site-packages/dns/flags.py
parentcc961e04ba734dd72309fb548a2f97d67d578813 (diff)
downloadgn-ai-master.tar.gz
two version of R2R are hereHEADmaster
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+# 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