��Re�@s�ddlmZddlZddlmZmZddlmZdd�Zej ddd d �Z dd�Zd d�Zdd�Z e d�ZdS)�)�absolute_importN�)�NoWayToWaitForSocketError� wait_for_read�)�_appengine_environcCsct|dd�}|dkr"dS|dkr2dSyt|dd�SWntk r^dSYnXdS)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)�getattrrr)�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_droppeds rcCsR|\}}|jd�r*|jd�}d}t�}x�tj|||tj�D]�}|\} } }}} d}yftj| | |�}t||�|tjk r�|j|�|r�|j |�|j | �|SWqUtjk r(}z'|}|dk r|j�d}WYdd}~XqUXqUW|dk r?|�tjd��dS)adConnect 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�errr �create_connection!s2 " r+cCs2|dkrdSx|D]}|j|�qWdS)N)� setsockopt)r�options�optrrr rYs rcCstj}trtj}|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#rrr ras rcCs}d}d}tj�rdStjriy/tjtj�}|j|df�d}Wntk rhYnX|ry|j�|S)z6 Returns True if the system can bind an IPv6 address. NFrT)r�is_appengine_sandboxr�has_ipv6�AF_INET6r� Exceptionr)r rr3rrr � _has_ipv6ls r6z::1)� __future__rr�waitrr�contribrrrr+rrr6r0rrrr �s4