SrSSKrSSKrSSKrSSKrSSKJrJrJ r \R"S5r Sr \R"S5r \R"S5r\R"S 5rS rS rS rg) zIPv6 helper functions.N)xrange binary_type maybe_decodez 0+([0-9a-f]+)c&[U5S:wa [S5e[R"U5n/nSn[U5nX4:aV[ XUS-5n[ R U5nUbURS5nURU5 US- nX4:aMVSnSnSn Sn [S 5H4nX#S :waU (aUn X- n X:aU nU nSn M%M'U (aM0Un S n M6 U (aS n X- n X:aU nU nUS:a~US:XaGUS :XdUS :Xa;US S:Xa2US :XaSn OSn U [RRUSS5-nU$SRUSU5S-SRX'U-S5-nU$SRU5nU$)zConvert an IPv6 address in binary form to text form. *address*, a ``binary``, the IPv6 address in binary form. Raises ``ValueError`` if the address isn't 16 bytes long. Returns a ``text``. z IPv6 addresses are 16 bytes longrNrF0Tffffz::z::ffff: :)len ValueErrorbinasciihexlifyr _leading_zeromatchgroupappendrdnsipv4 inet_ntoajoin)addresshexchunksilchunkm best_startbest_lenstart last_was_zeroend current_lenprefixs lib/third_party/dns/ipv6.pyrrs 7|r;<<   7 #C F A CA %SQU^,    &yGGAJE e Q %JH EM AY 9 !k )!&J*H % E Mk  !J"H!| ? M MfQi611}"388--gbcl;;C J ((6+:./$6((6x"7"89:;C Jhhv Js(.*):(\d+\.\d+\.\d+\.\d+)$s::.*s.*::$c[U[5(dUR5nUS:XaSn[R U5nUb[ [ RRURS555nSRURS5R5USUSUSUS5R5n[R U5nUbUSSnO[R U5nUbUSS nURS 5n[U5nUS :a[ R R"eS n/nUHnUS :XaOU(a[ R R"eSn[%SS U- S-5HnUR'S5 M MX[U5n U S:a[ R R"eU S:wa SSU - -U-nUR'U5 M US :a!U(d[ R R"eS R)U5n[*R,"U5$![*R.[04a [ R R"ef=f)zConvert an IPv6 address in text form to binary form. *text*, a ``text``, the IPv6 address in textual form. Returns a ``binary``. s::s0::Nz{}:{:02x}{:02x}:{:02x}{:02x}rrr :r Fr-Ts0000r 0) isinstancerencode _v4_endingr bytearrayrr inet_atonrformatdecode_colon_colon_start_colon_colon_endsplitr exception SyntaxErrorrrrr unhexlifyError TypeError) textr$br r" seen_empty canonicalcr!lcs r,r7r7ds# dK ( ({{} u} A 9 chh((4 5/66qwwqz7H7H7J78tQqT1Q478t=>Dfh    &A 9ABx  " "4 (y9DZZ F F A1umm'''JI  8mm///JAq1uqy)  )*QBAvmm///QwQV_)   Q  1uZmm''' 88I D (!!$'' NNI &(mm'''(s (H>>5I3s c,UR[5$)zIs the specified address a mapped IPv4 address? *address*, a ``binary`` is an IPv6 address in binary form. Returns a ``bool``. ) startswith_mapped_prefix)rs r, is_mappedrKs   n --r-)__doc__rer dns.exceptionrdns.ipv4_compatrrrcompilerrr5r:r;r7rJrKr-r,rSst$ 66 +, AFZZ6 7 ZZ)::i(E(N,.r-