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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/rcode.py
parentcc961e04ba734dd72309fb548a2f97d67d578813 (diff)
downloadgn-ai-master.tar.gz
two version of R2R are hereHEADmaster
Diffstat (limited to '.venv/lib/python3.12/site-packages/dns/rcode.py')
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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 Result Codes."""
+
+from typing import Tuple
+
+import dns.enum
+import dns.exception
+
+
+class Rcode(dns.enum.IntEnum):
+ #: No error
+ NOERROR = 0
+ #: Format error
+ FORMERR = 1
+ #: Server failure
+ SERVFAIL = 2
+ #: Name does not exist ("Name Error" in RFC 1025 terminology).
+ NXDOMAIN = 3
+ #: Not implemented
+ NOTIMP = 4
+ #: Refused
+ REFUSED = 5
+ #: Name exists.
+ YXDOMAIN = 6
+ #: RRset exists.
+ YXRRSET = 7
+ #: RRset does not exist.
+ NXRRSET = 8
+ #: Not authoritative.
+ NOTAUTH = 9
+ #: Name not in zone.
+ NOTZONE = 10
+ #: DSO-TYPE Not Implemented
+ DSOTYPENI = 11
+ #: Bad EDNS version.
+ BADVERS = 16
+ #: TSIG Signature Failure
+ BADSIG = 16
+ #: Key not recognized.
+ BADKEY = 17
+ #: Signature out of time window.
+ BADTIME = 18
+ #: Bad TKEY Mode.
+ BADMODE = 19
+ #: Duplicate key name.
+ BADNAME = 20
+ #: Algorithm not supported.
+ BADALG = 21
+ #: Bad Truncation
+ BADTRUNC = 22
+ #: Bad/missing Server Cookie
+ BADCOOKIE = 23
+
+ @classmethod
+ def _maximum(cls):
+ return 4095
+
+ @classmethod
+ def _unknown_exception_class(cls):
+ return UnknownRcode
+
+
+class UnknownRcode(dns.exception.DNSException):
+ """A DNS rcode is unknown."""
+
+
+def from_text(text: str) -> Rcode:
+ """Convert text into an rcode.
+
+ *text*, a ``str``, the textual rcode or an integer in textual form.
+
+ Raises ``dns.rcode.UnknownRcode`` if the rcode mnemonic is unknown.
+
+ Returns a ``dns.rcode.Rcode``.
+ """
+
+ return Rcode.from_text(text)
+
+
+def from_flags(flags: int, ednsflags: int) -> Rcode:
+ """Return the rcode value encoded by flags and ednsflags.
+
+ *flags*, an ``int``, the DNS flags field.
+
+ *ednsflags*, an ``int``, the EDNS flags field.
+
+ Raises ``ValueError`` if rcode is < 0 or > 4095
+
+ Returns a ``dns.rcode.Rcode``.
+ """
+
+ value = (flags & 0x000F) | ((ednsflags >> 20) & 0xFF0)
+ return Rcode.make(value)
+
+
+def to_flags(value: Rcode) -> Tuple[int, int]:
+ """Return a (flags, ednsflags) tuple which encodes the rcode.
+
+ *value*, a ``dns.rcode.Rcode``, the rcode.
+
+ Raises ``ValueError`` if rcode is < 0 or > 4095.
+
+ Returns an ``(int, int)`` tuple.
+ """
+
+ if value < 0 or value > 4095:
+ raise ValueError("rcode must be >= 0 and <= 4095")
+ v = value & 0xF
+ ev = (value & 0xFF0) << 20
+ return (v, ev)
+
+
+def to_text(value: Rcode, tsig: bool = False) -> str:
+ """Convert rcode into text.
+
+ *value*, a ``dns.rcode.Rcode``, the rcode.
+
+ Raises ``ValueError`` if rcode is < 0 or > 4095.
+
+ Returns a ``str``.
+ """
+
+ if tsig and value == Rcode.BADVERS:
+ return "BADSIG"
+ return Rcode.to_text(value)
+
+
+### BEGIN generated Rcode constants
+
+NOERROR = Rcode.NOERROR
+FORMERR = Rcode.FORMERR
+SERVFAIL = Rcode.SERVFAIL
+NXDOMAIN = Rcode.NXDOMAIN
+NOTIMP = Rcode.NOTIMP
+REFUSED = Rcode.REFUSED
+YXDOMAIN = Rcode.YXDOMAIN
+YXRRSET = Rcode.YXRRSET
+NXRRSET = Rcode.NXRRSET
+NOTAUTH = Rcode.NOTAUTH
+NOTZONE = Rcode.NOTZONE
+DSOTYPENI = Rcode.DSOTYPENI
+BADVERS = Rcode.BADVERS
+BADSIG = Rcode.BADSIG
+BADKEY = Rcode.BADKEY
+BADTIME = Rcode.BADTIME
+BADMODE = Rcode.BADMODE
+BADNAME = Rcode.BADNAME
+BADALG = Rcode.BADALG
+BADTRUNC = Rcode.BADTRUNC
+BADCOOKIE = Rcode.BADCOOKIE
+
+### END generated Rcode constants