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� z fc @ s� d Z d d l Z d d l Td d l m Z d d l m Z y d d l Z Wn e k r_ n� Xe e d � Z d d l m Z d d l m Z m Z m Z m Z m Z m Z m Z m Z m Z m Z m Z y d d l m Z Wn e k r� n Xd d l Z d d l Z d d l Z y d d l m Z Wn! e k rNd d l m Z n Xy d d l Z Wn e k rxe Z n Xe e d d � Z e e d d � Z d d g Z! e! j" e j# e � � e$ Z% e j& j' � j( d � r�i Z) d e) d <d e) d <d e) d <d e) d <d e) d <d e) d <d e) d <d e) d! <d" e) d# <d$ e) d% <d& e) d' <d( e) d) <d* e) d+ <d, e) d- <d. e) d/ <e! j* d0 � n d1 d2 � Z+ d3 d4 d5 d6 d7 d8 d9 d: d; d< d= d> d? d@ f Z, e j- dA k r�e, dB f Z, n e j& dC k re, dD f Z, n dE dF dG dH dI dJ f Z. dK e/ f dL � � YZ0 dM e/ f dN � � YZ1 dO � Z2 x] e, D]U Z3 e e2 e3 � Z4 e3 e4 _5 e e% e3 � j e4 _ e e4 e e1 � Z6 e7 e1 e3 e6 � qWWe1 Z$ Z8 dP e/ f dQ � � YZ9 e/ � Z: e: e dR � Z; d S(S s This module provides socket operations and some related functions. On Unix, it supports IP (Internet Protocol) and Unix domain sockets. On other systems, it only supports IP. Functions specific for a socket are available as methods of the socket object. Functions: socket() -- create a new socket object socketpair() -- create a pair of new socket objects [*] fromfd() -- create a socket object from an open file descriptor [*] gethostname() -- return the current hostname gethostbyname() -- map a hostname to its IP number gethostbyaddr() -- map an IP number or hostname to DNS info getservbyname() -- map a service name and a protocol name to a port number getprotobyname() -- map a protocol name (e.g. 'tcp') to a number ntohs(), ntohl() -- convert 16, 32 bit int from network to host byte order htons(), htonl() -- convert 16, 32 bit int from host to network byte order inet_aton() -- convert IP addr string (123.45.67.89) to 32-bit packed format inet_ntoa() -- convert 32-bit packed format IP to string (123.45.67.89) ssl() -- secure socket layer support (only available if configured) socket.getdefaulttimeout() -- get the default timeout value socket.setdefaulttimeout() -- set the default timeout value create_connection() -- connects to an address, with an optional timeout and optional source address. [*] not available on all platforms! Special objects: SocketType -- type object for socket objects error -- exception raised for I/O errors has_ipv6 -- boolean value indicating if IPv6 is supported Integer constants: AF_INET, AF_UNIX -- socket domains (first argument to socket() call) SOCK_STREAM, SOCK_DGRAM, SOCK_RAW -- socket types (second argument) Many other constants may be defined; these may be used in calls to the setsockopt() and getsockopt() methods. i����N( t *( t partial( t MethodTypec C s5 d d l } t j d t d d �| j | | | � S( Ni����s; socket.ssl() is deprecated. 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A fault occurred on the network??i ' s# An invalid operation was attempted.i&' s The socket operation would blocki3' s, A blocking operation is already in progress.i4' s The network address is in use.i@' s The connection has been reset.iF' s The network has been shut down.iJ' s The operation timed out.iL' s Connection refused.iM' s The name is too long.iO' s The host is down.iP' s The host is unreachable.iQ' t errorTabt c C s� | j � } | s | d k r+ t � } n y t | � \ } } } Wn t k rW n8 X| j d | � x$ | D] } d | k ro Pqo qo W| } | S( s Get fully qualified domain name from name. An empty argument is interpreted as meaning the local host. First the hostname returned by gethostbyaddr() is checked, then possibly existing aliases. 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