def _destination_and_source()

in functions/source/populate_NLB_TG_with_ALB/dns/query.py [0:0]

• 19 lines of code
• 15 McCabe index (conditional complexity)

def _destination_and_source(af, where, port, source, source_port):
    # Apply defaults and compute destination and source tuples
    # suitable for use in connect(), sendto(), or bind().
    if af is None:
        try:
            af = dns.inet.af_for_address(where)
        except Exception:
            af = dns.inet.AF_INET
    if af == dns.inet.AF_INET:
        destination = (where, port)
        if source is not None or source_port != 0:
            if source is None:
                source = '0.0.0.0'
            source = (source, source_port)
    elif af == dns.inet.AF_INET6:
        destination = (where, port, 0, 0)
        if source is not None or source_port != 0:
            if source is None:
                source = '::'
            source = (source, source_port, 0, 0)
    return (af, destination, source)