xnu-6153.11.26.tar.gz

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

diff --git a/bsd/net/linkaddr.c b/bsd/net/linkaddr.c
new file mode 100644 (file)
index 0000000..d8cc855
--- /dev/null
+++ b/bsd/net/linkaddr.c
@@ -0,0 +1,104 @@
+/*
+ * 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);
+}
+/*---------------------------------------------------------------------------*/
+/** @} */