1*10465441SEvalZero /* 2*10465441SEvalZero * Copyright (c) 2006-2018, RT-Thread Development Team 3*10465441SEvalZero * 4*10465441SEvalZero * SPDX-License-Identifier: Apache-2.0 5*10465441SEvalZero * 6*10465441SEvalZero * Change Logs: 7*10465441SEvalZero * Date Author Notes 8*10465441SEvalZero * 2015-02-17 Bernard First version 9*10465441SEvalZero */ 10*10465441SEvalZero 11*10465441SEvalZero #ifndef IN_H__ 12*10465441SEvalZero #define IN_H__ 13*10465441SEvalZero 14*10465441SEvalZero #include <sys/socket.h> 15*10465441SEvalZero 16*10465441SEvalZero #ifndef IN6_IS_ADDR_MULTICAST 17*10465441SEvalZero #define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff) 18*10465441SEvalZero #endif 19*10465441SEvalZero 20*10465441SEvalZero #endif 21