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edns.cpython-36.pyc
3 �b�W � @ s@ d Z dZG dd� de�ZG dd� de�Zi Zdd� Zdd � Zd S ) z EDNS Options� c @ sd e Zd ZdZdd� Zdd� Zedd� �Zdd � Zd d � Z d d � Z dd� Z dd� Z dd� Z dd� ZdS )�Optionz*Base class for all EDNS option types. c C s || _ dS )z\Initialize an option. @param otype: The rdata type @type otype: int N)�otype)�selfr � r �/usr/lib/python3.6/edns.py�__init__ s zOption.__init__c C s t �dS )z*Convert an option to wire format. N)�NotImplementedError)r �filer r r �to_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 )�clsr �wire�current�olenr r r � from_wire& s zOption.from_wirec C s t �dS )z�Compare 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 �otherr r r �_cmp5 s z Option._cmpc C s, t |t�sdS | j|jkr dS | j|�dkS )NF� )� isinstancer r r )r r r r r �__eq__< s z Option.__eq__c C s, t |t�sdS | j|jkr dS | j|�dkS )NFr )r r r r )r r r r r �__ne__C s z Option.__ne__c C s* t |t� s| j|jkr tS | j|�dk S )Nr )r r r �NotImplementedr )r r r r r �__lt__J s z Option.__lt__c C s* t |t� s| j|jkr tS | j|�dkS )Nr )r r r r r )r r r r r �__le__P s z Option.__le__c C s* t |t� s| j|jkr tS | j|�dkS )Nr )r r r r r )r r r r r �__ge__V s z Option.__ge__c C s* t |t� s| j|jkr tS | j|�dkS )Nr )r r r r r )r r r r r �__gt__\ s z Option.__gt__N)�__name__� __module__� __qualname__�__doc__r r � classmethodr r r r r r r r r r r r r s r c s< e Zd ZdZ� fdd�Zdd� Zedd� �Zdd � Z� Z S ) � GenericOptionzwGenerate Rdata Class This class is used for EDNS option types for which we have no better implementation. c s t t| �j|� || _d S )N)�superr r �data)r r r" )� __class__r r r k s zGenericOption.__init__c C s |j | j� d S )N)�writer" )r r r r r r o s zGenericOption.to_wirec C s | ||||| � �S )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 � ���)r" )r r r r r r v s zGenericOption._cmp) r r r r r r r r r � __classcell__r r )r# r r c s r c C s t j| �}|d krt}|S )N)�_type_to_class�getr )r r r r r �get_option_class� s r* c C s t | �}|j| |||�S )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 �option_from_wire� s r+ N)r ZNSID�objectr r r( r* r+ r r r r �<module> s N
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