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Editing: rawudp.cpython-38.pyc
U W[ � @ s^ d Z ddlZddlmZ ddlmZ ddlmZ G dd� d�Zeej �G dd � d ej ��Z dS ) z1 Implementation of raw packet interfaces for UDP � N)�protocol)�raw)� implementerc @ s e Zd Zdd� ZdS )� UDPHeaderc C s( t �d|d d� �\| _| _| _| _d S )Nz!HHHH� )�structZunpack�source�dest�lenZcheck)�self�data� r �5/usr/lib/python3/dist-packages/twisted/pair/rawudp.py�__init__ s �zUDPHeader.__init__N)�__name__� __module__� __qualname__r r r r r r s r c @ s$ e Zd Zdd� Zdd� Zdd� ZdS )�RawUDPProtocolc C s i | _ d S )N)� udpProtos)r r r r r s zRawUDPProtocol.__init__c C s\ t |tj�std��|dk r$td��|dkr4td��|| jkrHg | j|< | j| �|� d S )Nz6Added protocol must be an instance of DatagramProtocolr z'Added protocol must be positive or zeroi z"Added protocol must fit in 16 bits)� isinstancer ZDatagramProtocol� TypeErrorr �append)r Znum�protor r r �addProto s zRawUDPProtocol.addProtoc C s< t |�}| j�|jd�D ] }|�|dd � ||jf� qd S )Nr r )r r �getr �datagramReceivedr )r r �partialr r r �versionZihlZtosZtot_lenZ fragment_idZfragment_offsetZ dont_fragmentZmore_fragmentsZttl�headerr r r r r ) s �z RawUDPProtocol.datagramReceivedN)r r r r r r r r r r r s r ) �__doc__r Ztwisted.internetr Z twisted.pairr Zzope.interfacer r ZIRawDatagramProtocolZAbstractDatagramProtocolr r r r r �<module> s
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