util.py 文件源码

def inet_ntop(address_family, packed_ip):
        if address_family == socket.AF_INET:
            return socket.inet_ntoa(packed_ip)

        addr = sockaddr()
        addr.sa_family = address_family
        addr_size = ctypes.c_int(ctypes.sizeof(addr))
        ip_string = ctypes.create_string_buffer(128)
        ip_string_size = ctypes.c_int(ctypes.sizeof(ip_string))

        if address_family == socket.AF_INET6:
            if len(packed_ip) != ctypes.sizeof(addr.ipv6_addr):
                raise socket.error('packed IP wrong length for inet_ntoa')
            ctypes.memmove(addr.ipv6_addr, packed_ip, 16)
        else:
            raise socket.error('unknown address family')

        if WSAAddressToStringA(
                ctypes.byref(addr),
                addr_size,
                None,
                ip_string,
                ctypes.byref(ip_string_size)
        ) != 0:
            raise socket.error(ctypes.FormatError())

        return ip_string[:ip_string_size.value - 1]