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��Re � @ s� d d l m Z d d l Z d d l m Z m Z d d l m Z d d � Z e j d d d d � Z d d � Z d d � Z d d � Z e d � Z d S)� )�absolute_importN� )�NoWayToWaitForSocketError� wait_for_read� )�_appengine_environc C sc t | d d � } | d k r" d S| d k r2 d Sy t | d d �SWn t k r^ d SYn Xd S)a Returns True if the connection is dropped and should be closed. :param conn: :class:`httplib.HTTPConnection` object. Note: For platforms like AppEngine, this will always return ``False`` to let the platform handle connection recycling transparently for us. �sockFNT�timeoutg )�getattrr r )�connr � r ��/builddir/build/BUILDROOT/alt-python35-pip-20.2.4-5.el8.x86_64/opt/alt/python35/lib/python3.5/site-packages/pip/_vendor/urllib3/util/connection.py�is_connection_dropped s r c C sR | \ } } | j d � r* | j d � } d } t � } x� t j | | | t j � D]� } | \ } } } } } d } yf t j | | | � } t | | � | t j k r� | j | � | r� | j | � | j | � | SWqU t j k r(} z' | } | d k r| j � d } WYd d } ~ XqU XqU W| d k r?| � t j d � � d S)ad Connect to *address* and return the socket object. Convenience function. Connect to *address* (a 2-tuple ``(host, port)``) and return the socket object. Passing the optional *timeout* parameter will set the timeout on the socket instance before attempting to connect. If no *timeout* is supplied, the global default timeout setting returned by :func:`getdefaulttimeout` is used. If *source_address* is set it must be a tuple of (host, port) for the socket to bind as a source address before making the connection. An host of '' or port 0 tells the OS to use the default. �[z[]Nz!getaddrinfo returns an empty list) � startswith�strip�allowed_gai_family�socket� getaddrinfo� SOCK_STREAM�_set_socket_options�_GLOBAL_DEFAULT_TIMEOUT� settimeout�bind�connect�error�close)�addressr �source_address�socket_options�host�port�err�family�res�af�socktype�proto� canonname�sar �er r r �create_connection! s2 " r+ c C s2 | d k r d Sx | D] } | j | � q Wd S)N)� setsockopt)r �options�optr r r r Y s r c C s t j } t r t j } | S)z�This function is designed to work in the context of getaddrinfo, where family=socket.AF_UNSPEC is the default and will perform a DNS search for both IPv6 and IPv4 records.)r �AF_INET�HAS_IPV6� AF_UNSPEC)r# r r r r a s r c C s} d } d } t j � r d St j ri y/ t j t j � } | j | d f � d } Wn t k rh Yn X| ry | j � | S)z6 Returns True if the system can bind an IPv6 address. NFr T)r �is_appengine_sandboxr �has_ipv6�AF_INET6r � Exceptionr )r r r3 r r r � _has_ipv6l s r6 z::1)� __future__r r �waitr r �contribr r r r+ r r r6 r0 r r r r �<module> s 4
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