JFIF$        dd7 

Viewing File: /usr/lib/python3.9/site-packages/dns/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
Back to Directory  nL+D550H?Mx ,D"v]qv;6*Zqn)ZP0!1 A "#a$2Qr D8 a Ri[f\mIykIw0cuFcRı?lO7к_f˓[C$殷WF<_W ԣsKcëIzyQy/_LKℂ;C",pFA:/]=H  ~,ls/9ć:[=/#f;)x{ٛEQ )~ =𘙲r*2~ a _V=' kumFD}KYYC)({ *g&f`툪ry`=^cJ.I](*`wq1dđ#̩͑0;H]u搂@:~וKL Nsh}OIR*8:2 !lDJVo(3=M(zȰ+i*NAr6KnSl)!JJӁ* %݉?|D}d5:eP0R;{$X'xF@.ÊB {,WJuQɲRI;9QE琯62fT.DUJ;*cP A\ILNj!J۱+O\͔]ޒS߼Jȧc%ANolՎprULZԛerE2=XDXgVQeӓk yP7U*omQIs,K`)6\G3t?pgjrmۛجwluGtfh9uyP0D;Uڽ"OXlif$)&|ML0Zrm1[HXPlPR0'G=i2N+0e2]]9VTPO׮7h(F*癈'=QVZDF,d߬~TX G[`le69CR(!S2!P <0x<!1AQ "Raq02Br#SCTb ?Ζ"]mH5WR7k.ۛ!}Q~+yԏz|@T20S~Kek *zFf^2X*(@8r?CIuI|֓>^ExLgNUY+{.RѪ τV׸YTD I62'8Y27'\TP.6d&˦@Vqi|8-OΕ]ʔ U=TL8=;6c| !qfF3aů&~$l}'NWUs$Uk^SV:U# 6w++s&r+nڐ{@29 gL u"TÙM=6(^"7r}=6YݾlCuhquympǦ GjhsǜNlɻ}o7#S6aw4!OSrD57%|?x>L |/nD6?/8w#[)L7+6〼T ATg!%5MmZ/c-{1_Je"|^$'O&ޱմTrb$w)R$& N1EtdU3Uȉ1pM"N*(DNyd96.(jQ)X 5cQɎMyW?Q*!R>6=7)Xj5`J]e8%t!+'!1Q5 !1 AQaqё#2"0BRb?Gt^## .llQT $v,,m㵜5ubV =sY+@d{N! dnO<.-B;_wJt6;QJd.Qc%p{ 1,sNDdFHI0ГoXшe黅XۢF:)[FGXƹ/w_cMeD,ʡcc.WDtA$j@:) -# u c1<@ۗ9F)KJ-hpP]_x[qBlbpʖw q"LFGdƶ*s+ډ_Zc"?%t[IP 6J]#=ɺVvvCGsGh1 >)6|ey?Lӣm,4GWUi`]uJVoVDG< SB6ϏQ@ TiUlyOU0kfV~~}SZ@*WUUi##; s/[=!7}"WN]'(L! ~y5g9T̅JkbM' +s:S +B)v@Mj e Cf jE 0Y\QnzG1д~Wo{T9?`Rmyhsy3!HAD]mc1~2LSu7xT;j$`}4->L#vzŏILS ֭T{rjGKC;bpU=-`BsK.SFw4Mq]ZdHS0)tLg