Function _inet_paton

Lib/ssl.py:329–361

Try to convert an IP address to packed binary form Supports IPv4 addresses on all platforms and IPv6 on platforms with IPv6 support.

(ipname)

def _inet_paton(ipname):
    """Try to convert an IP address to packed binary form

    Supports IPv4 addresses on all platforms and IPv6 on platforms with IPv6
    support.
    """
    # inet_aton() also accepts strings like '1', '127.1', some also trailing
    # data like '127.0.0.1 whatever'.
    try:
        addr = _socket.inet_aton(ipname)
    except OSError:
        # not an IPv4 address
        pass
    else:
        if _socket.inet_ntoa(addr) == ipname:
            # only accept injective ipnames
            return addr
        else:
            # refuse for short IPv4 notation and additional trailing data
            raise ValueError(
                "{!r} is not a quad-dotted IPv4 address.".format(ipname)
            )

    try:
        return _socket.inet_pton(_socket.AF_INET6, ipname)
    except OSError:
        raise ValueError("{!r} is neither an IPv4 nor an IP6 "
                         "address.".format(ipname))
    except AttributeError:
        # AF_INET6 not available
        pass

    raise ValueError("{!r} is not an IPv4 address.".format(ipname))


def _ipaddress_match(cert_ipaddress, host_ip):