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21 lines
371 B
21 lines
371 B
5 days ago
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2015-02-17 Bernard First version
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*/
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#ifndef IN_H__
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#define IN_H__
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#include <sys/socket.h>
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#ifndef IN6_IS_ADDR_MULTICAST
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#define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff)
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#endif
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#endif
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