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d „ Z dS ) z*Generic Internet address helper functions.é Ni' c C s0 | t krtjj|ƒS | tkr(tjj|ƒS t‚dS )a* Convert the textual form of a network address into its binary form.
@param family: the address family
@type family: int
@param text: the textual address
@type text: string
@raises NotImplementedError: the address family specified is not
implemented.
@rtype: string
N)ÚAF_INETÚdnsÚipv4Ú inet_atonÚAF_INET6Úipv6ÚNotImplementedError)ÚfamilyÚtext© r ú/usr/lib/python3.6/inet.pyÚ inet_pton& s
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c C s0 | t krtjj|ƒS | tkr(tjj|ƒS t‚dS )a/ Convert the binary form of a network address into its textual form.
@param family: the address family
@type family: int
@param address: the binary address
@type address: string
@raises NotImplementedError: the address family specified is not
implemented.
@rtype: string
N)r r r Z inet_ntoar r r )r Zaddressr r r Ú inet_ntop: s
r c C sL yt jj| ƒ tS tk
rF yt jj| ƒ tS t‚Y nX Y nX dS )záDetermine the address family of a textual-form network address.
@param text: the textual address
@type text: string
@raises ValueError: the address family cannot be determined from the input.
@rtype: int
N)r r r r Ú Exceptionr r Ú
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r r r Úaf_for_addressM s r c C st y$t tjj| ƒd ƒ}|dko$|dkS tk
rn y t tjj| ƒd ƒ}|dkS tk
rh t‚Y nX Y nX dS )zÄIs the textual-form network address a multicast address?
@param text: the textual address
@raises ValueError: the address family cannot be determined from the input.
@rtype: bool
r éà éï éÿ N)Úordr r r r r r )r
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