a sd_@s^dZddlZddlZddlZejZejZddZddZddZ d d Z d d Z dd dZ dS)z*Generic Internet address helper functions.NcCs2|tkrtj|S|tkr*tj|dStdS)aConvert the textual form of a network address into its binary form. *family* is an ``int``, the address family. *text* is a ``str``, the textual address. Raises ``NotImplementedError`` if the address family specified is not implemented. Returns a ``bytes``. TN)AF_INETdnsipv4 inet_atonAF_INET6ipv6NotImplementedError)familytextr */usr/lib/python3/dist-packages/dns/inet.py inet_pton!s  r cCs0|tkrtj|S|tkr(tj|StdS)a0Convert the binary form of a network address into its textual form. *family* is an ``int``, the address family. *address* is a ``bytes``, the network address in binary form. Raises ``NotImplementedError`` if the address family specified is not implemented. Returns a ``str``. N)rrrZ inet_ntoarrr)r addressr r r inet_ntop6s   rc CsZztj|tWStyTztj|dtWYStyNtYn0Yn0dS)zDetermine the address family of a textual-form network address. *text*, a ``str``, the textual address. Raises ``ValueError`` if the address family cannot be determined from the input. Returns an ``int``. TN)rrrr Exceptionrr ValueErrorr r r r af_for_addressKs     rc Csrz"tj|d}|dko |dkWStylz tj|dd}|dkWYStyftYn0Yn0dS)zIs the textual-form network address a multicast address? *text*, a ``str``, the textual address. Raises ``ValueError`` if the address family cannot be determined from the input. Returns a ``bool``. rTN)rrrrrr)r firstr r r is_multicastas   rc CsXztj|WdStyRztj|dWYdStyLYYdS0Yn0dS)z{Is the specified string an IPv4 or IPv6 address? *text*, a ``str``, the textual address. Returns a ``bool``. TFN)rrrrrrr r r is_addressws   rc Cs|\}}|durt|}|tkr(||fS|tkr|d}|dkrN||ddfS|d|}||dd}|r||dt|fSz||dt|fWStytj }tj |||d^^}} }| YS0nt d|dS)aYGiven a "high-level" address tuple, i.e. an (address, port) return the appropriate "low-level" address tuple suitable for use in socket calls. If an *af* other than ``None`` is provided, it is assumed the address in the high-level tuple is valid and has that af. If af is ``None``, then af_for_address will be called. N%r)flagszunknown address family ) rrrfindisdigitintsocketZif_nametoindexAttributeErrorZAI_NUMERICHOSTZ getaddrinfor) Z high_tupleZafrZportiZaddrpartZscopeZai_flags_tupr r r low_level_address_tuples(      r%)N) __doc__r Zdns.ipv4rZdns.ipv6rrr rrrrr%r r r r s