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¢báW ã @ s@ d Z dZG dd„ deƒZG dd„ deƒZi Zdd„ Zdd „ Zd
S ) z EDNS Optionsé c @ sd e Zd ZdZdd„ Zdd„ Zedd„ ƒZdd „ Zd
d „ Z d d
„ Z
dd„ Z dd„ Z dd„ Z
dd„ ZdS )ÚOptionz*Base class for all EDNS option types.
c C s
|| _ dS )z\Initialize an option.
@param otype: The rdata type
@type otype: int
N)Úotype)Úselfr © r ú/usr/lib/python3.6/edns.pyÚ__init__ s zOption.__init__c C s t ‚dS )z*Convert an option to wire format.
N)ÚNotImplementedError)r Úfiler r r Úto_wire! s zOption.to_wirec C s t ‚dS )a™ Build an EDNS option object from wire format
@param otype: The option type
@type otype: int
@param wire: The wire-format message
@type wire: string
@param current: The offset in wire of the beginning of the rdata.
@type current: int
@param olen: The length of the wire-format option data
@type olen: int
@rtype: dns.edns.Option instanceN)r )Úclsr ÚwireÚcurrentÚolenr r r Ú from_wire& s
zOption.from_wirec C s t ‚dS )zžCompare an EDNS option with another option of the same type.
Return < 0 if self < other, 0 if self == other,
and > 0 if self > other.
N)r )r Úotherr r r Ú_cmp5 s z Option._cmpc C s, t |tƒsdS | j|jkr dS | j|ƒdkS )NFé )Ú
isinstancer r r )r r r r r Ú__eq__< s
z
Option.__eq__c C s, t |tƒsdS | j|jkr dS | j|ƒdkS )NFr )r r r r )r r r r r Ú__ne__C s
z
Option.__ne__c C s* t |tƒ s| j|jkr tS | j|ƒdk S )Nr )r r r ÚNotImplementedr )r r r r r Ú__lt__J s z
Option.__lt__c C s* t |tƒ s| j|jkr tS | j|ƒdkS )Nr )r r r r r )r r r r r Ú__le__P s z
Option.__le__c C s* t |tƒ s| j|jkr tS | j|ƒdkS )Nr )r r r r r )r r r r r Ú__ge__V s z
Option.__ge__c C s* t |tƒ s| j|jkr tS | j|ƒdkS )Nr )r r r r r )r r r r r Ú__gt__\ s z
Option.__gt__N)Ú__name__Ú
__module__Ú __qualname__Ú__doc__r r
Ú classmethodr r r r r r r r r r r r r s r c s< e Zd ZdZ‡ fdd„Zdd„ Zedd„ ƒZdd „ Z‡ Z S )
Ú
GenericOptionzwGenerate Rdata Class
This class is used for EDNS option types for which we have no better
implementation.
c s t t| ƒj|ƒ || _d S )N)Úsuperr r Údata)r r r" )Ú __class__r r r k s zGenericOption.__init__c C s |j | jƒ d S )N)Úwriter" )r r r r r r
o s zGenericOption.to_wirec C s | ||||| … ƒS )Nr )r r r r
r r r r r r s zGenericOption.from_wirec C s$ | j |j krdS | j |j kr dS dS )Nr é éÿÿÿÿ)r" )r r r r r r v s
zGenericOption._cmp)
r r r r r r
r r r Ú
__classcell__r r )r# r r c s
r c C s t j| ƒ}|d krt}|S )N)Ú_type_to_classÚgetr )r r r r r Úget_option_class s
r* c C s t | ƒ}|j| |||ƒS )au Build an EDNS option object from wire format
@param otype: The option type
@type otype: int
@param wire: The wire-format message
@type wire: string
@param current: The offset in wire of the beginning of the rdata.
@type current: int
@param olen: The length of the wire-format option data
@type olen: int
@rtype: dns.edns.Option instance)r* r )r r r
r r r r r Úoption_from_wireˆ s
r+ N)r ZNSIDÚobjectr r r( r* r+ r r r r Ú s N