[apple/xnu.git] / bsd / net / linkaddr.c

/*
 * Copyright (c) 2017 Apple Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 *
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 *
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/*
 * Copyright (c) 2007, Swedish Institute of Computer Science.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * This file is part of the Contiki operating system.
 *
 */

/**
 * \file
 *         Functions for manipulating Rime addresses
 * \author
 *         Adam Dunkels <adam@sics.se>
 */

/**
 * \addtogroup linkaddr
 * @{
 */

#include "linkaddr.h"
#include <string.h>

linkaddr_t linkaddr_node_addr;
#if LINKADDR_SIZE == 2
const linkaddr_t linkaddr_null = { { 0, 0 } };
#else /*LINKADDR_SIZE == 2*/
#if LINKADDR_SIZE == 8
const linkaddr_t linkaddr_null = { { 0, 0, 0, 0, 0, 0, 0, 0 } };
#endif /*LINKADDR_SIZE == 8*/
#endif /*LINKADDR_SIZE == 2*/


/*---------------------------------------------------------------------------*/
void
linkaddr_copy(linkaddr_t *dest, const linkaddr_t *src)
{
	memcpy(dest, src, LINKADDR_SIZE);
}
/*---------------------------------------------------------------------------*/
int
linkaddr_cmp(const linkaddr_t *addr1, const linkaddr_t *addr2)
{
	return memcmp(addr1, addr2, LINKADDR_SIZE) == 0;
}
/*---------------------------------------------------------------------------*/
void
linkaddr_set_node_addr(linkaddr_t *t)
{
	linkaddr_copy(&linkaddr_node_addr, t);
}
/*---------------------------------------------------------------------------*/
/** @} */
Commit	Line	Data
cb323159 A	1	/*
	2	* Copyright (c) 2017 Apple Inc. All rights reserved.
	3	*
	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
	5	*
	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
	14	*
	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
	25	*
	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
	27	*/
	28	/*
	29	* Copyright (c) 2007, Swedish Institute of Computer Science.
	30	* All rights reserved.
	31	*
	32	* Redistribution and use in source and binary forms, with or without
	33	* modification, are permitted provided that the following conditions
	34	* are met:
	35	* 1. Redistributions of source code must retain the above copyright
	36	* notice, this list of conditions and the following disclaimer.
	37	* 2. Redistributions in binary form must reproduce the above copyright
	38	* notice, this list of conditions and the following disclaimer in the
	39	* documentation and/or other materials provided with the distribution.
	40	* 3. Neither the name of the Institute nor the names of its contributors
	41	* may be used to endorse or promote products derived from this software
	42	* without specific prior written permission.
	43	*
	44	* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
	45	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	46	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	47	* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
	48	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	49	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	50	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	51	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	52	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	53	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	54	* SUCH DAMAGE.
	55	*
	56	* This file is part of the Contiki operating system.
	57	*
	58	*/
	59
	60	/**
	61	* \file
	62	* Functions for manipulating Rime addresses
	63	* \author
	64	* Adam Dunkels <adam@sics.se>
65	*/
66
67	/**
68	* \addtogroup linkaddr
69	* @{
70	*/
71
72	#include "linkaddr.h"
73	#include <string.h>
74
75	linkaddr_t linkaddr_node_addr;
76	#if LINKADDR_SIZE == 2
77	const linkaddr_t linkaddr_null = { { 0, 0 } };
78	#else /LINKADDR_SIZE == 2/
79	#if LINKADDR_SIZE == 8
80	const linkaddr_t linkaddr_null = { { 0, 0, 0, 0, 0, 0, 0, 0 } };
81	#endif /LINKADDR_SIZE == 8/
82	#endif /LINKADDR_SIZE == 2/
83
84
85	/---------------------------------------------------------------------------/
86	void
87	linkaddr_copy(linkaddr_t dest, const linkaddr_t src)
88	{
89	memcpy(dest, src, LINKADDR_SIZE);
90	}
91	/---------------------------------------------------------------------------/
92	int
93	linkaddr_cmp(const linkaddr_t addr1, const linkaddr_t addr2)
94	{
95	return memcmp(addr1, addr2, LINKADDR_SIZE) == 0;
96	}
97	/---------------------------------------------------------------------------/
98	void
99	linkaddr_set_node_addr(linkaddr_t *t)
100	{
101	linkaddr_copy(&linkaddr_node_addr, t);
102	}
103	/---------------------------------------------------------------------------/
104	/** @} */