UpnpPunch.py 文件源码

def _get_local_ip():
    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
    # not using <broadcast> because gevents getaddrinfo doesn't like that
    # using port 1 as per hobbldygoop's comment about port 0 not working on osx:
    # https://github.com/sirMackk/ZeroNet/commit/fdcd15cf8df0008a2070647d4d28ffedb503fba2#commitcomment-9863928
    s.connect(('239.255.255.250', 1))
    return s.getsockname()[0]