Contiki-NG
linkaddr.c
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1/*
2 * Copyright (c) 2007, Swedish Institute of Computer Science.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the Institute nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * This file is part of the Contiki operating system.
30 *
31 */
32
33/**
34 * \file
35 * Functions for manipulating link-layer addresses
36 * \author
37 * Adam Dunkels <adam@sics.se>
38 */
39
40/**
41 * \addtogroup linkaddr
42 * @{
43 */
44
45#include "net/linkaddr.h"
46#include <string.h>
47
49#if LINKADDR_SIZE == 2
50const linkaddr_t linkaddr_null = { { 0, 0 } };
51#else /*LINKADDR_SIZE == 2*/
52#if LINKADDR_SIZE == 8
53const linkaddr_t linkaddr_null = { { 0, 0, 0, 0, 0, 0, 0, 0 } };
54#endif /*LINKADDR_SIZE == 8*/
55#if LINKADDR_SIZE == 6
56const linkaddr_t linkaddr_null = { { 0, 0, 0, 0, 0, 0 } };
57#endif /*LINKADDR_SIZE == 6*/
58#endif /*LINKADDR_SIZE == 2*/
59
60
61/*---------------------------------------------------------------------------*/
62void
63linkaddr_copy(linkaddr_t *dest, const linkaddr_t *src)
64{
65 memcpy(dest, src, LINKADDR_SIZE);
66}
67/*---------------------------------------------------------------------------*/
68bool
69linkaddr_cmp(const linkaddr_t *addr1, const linkaddr_t *addr2)
70{
71 return (memcmp(addr1, addr2, LINKADDR_SIZE) == 0);
72}
73/*---------------------------------------------------------------------------*/
74void
76{
78}
79/*---------------------------------------------------------------------------*/
80/** @} */
linkaddr_t linkaddr_node_addr
The link-layer address of the node.
Definition: linkaddr.c:48
void linkaddr_set_node_addr(linkaddr_t *t)
Set the address of the current node.
Definition: linkaddr.c:75
void linkaddr_copy(linkaddr_t *dest, const linkaddr_t *src)
Copy a link-layer address.
Definition: linkaddr.c:63
bool linkaddr_cmp(const linkaddr_t *addr1, const linkaddr_t *addr2)
Compare two link-layer addresses.
Definition: linkaddr.c:69
const linkaddr_t linkaddr_null
The null link-layer address.
Header file for the link-layer address representation.