lwip/src/core/ipv6/ip6_addr.c

/*
 * Copyright (c) 2001-2004 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 lwIP TCP/IP stack.
 *
 * Author: Adam Dunkels <adam@sics.se>
 *
 */

#include "lwip/opt.h"
#include "lwip/ip_addr.h"
#include "lwip/inet.h"

u8_t
ip_addr_netcmp(struct ip_addr *addr1, struct ip_addr *addr2,
                struct ip_addr *mask)
{
  return((addr1->addr[0] & mask->addr[0]) == (addr2->addr[0] & mask->addr[0]) &&
         (addr1->addr[1] & mask->addr[1]) == (addr2->addr[1] & mask->addr[1]) &&
         (addr1->addr[2] & mask->addr[2]) == (addr2->addr[2] & mask->addr[2]) &&
         (addr1->addr[3] & mask->addr[3]) == (addr2->addr[3] & mask->addr[3]));

}

u8_t
ip_addr_cmp(struct ip_addr *addr1, struct ip_addr *addr2)
{
  return(addr1->addr[0] == addr2->addr[0] &&
         addr1->addr[1] == addr2->addr[1] &&
         addr1->addr[2] == addr2->addr[2] &&
         addr1->addr[3] == addr2->addr[3]);
}

void
ip_addr_set(struct ip_addr *dest, struct ip_addr *src)
{
  SMEMCPY(dest, src, sizeof(struct ip_addr));
  /*  dest->addr[0] = src->addr[0];
  dest->addr[1] = src->addr[1];
  dest->addr[2] = src->addr[2];
  dest->addr[3] = src->addr[3];*/
}

u8_t
ip_addr_isany(struct ip_addr *addr)
{
  if (addr == NULL) return 1;
  return((addr->addr[0] | addr->addr[1] | addr->addr[2] | addr->addr[3]) == 0);
}
Commit	Line	Data
	1	/*
	2	* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without modification,
	6	* are permitted provided that the following conditions are met:
	7	*
	8	* 1. Redistributions of source code must retain the above copyright notice,
	9	* this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright notice,
	11	* this list of conditions and the following disclaimer in the documentation
	12	* and/or other materials provided with the distribution.
	13	* 3. The name of the author may not be used to endorse or promote products
	14	* derived from this software without specific prior written permission.
	15	*
	16	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
	17	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
	18	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
	19	* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	20	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
	21	* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	22	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	23	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
	24	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
	25	* OF SUCH DAMAGE.
	26	*
	27	* This file is part of the lwIP TCP/IP stack.
	28	*
	29	* Author: Adam Dunkels <adam@sics.se>
	30	*
	31	*/
	32
	33	#include "lwip/opt.h"
	34	#include "lwip/ip_addr.h"
	35	#include "lwip/inet.h"
	36
	37	u8_t
	38	ip_addr_netcmp(struct ip_addr addr1, struct ip_addr addr2,
	39	struct ip_addr *mask)
	40	{
	41	return((addr1->addr[0] & mask->addr[0]) == (addr2->addr[0] & mask->addr[0]) &&
	42	(addr1->addr[1] & mask->addr[1]) == (addr2->addr[1] & mask->addr[1]) &&
	43	(addr1->addr[2] & mask->addr[2]) == (addr2->addr[2] & mask->addr[2]) &&
	44	(addr1->addr[3] & mask->addr[3]) == (addr2->addr[3] & mask->addr[3]));
	45
	46	}
	47
	48	u8_t
	49	ip_addr_cmp(struct ip_addr addr1, struct ip_addr addr2)
	50	{
	51	return(addr1->addr[0] == addr2->addr[0] &&
	52	addr1->addr[1] == addr2->addr[1] &&
	53	addr1->addr[2] == addr2->addr[2] &&
	54	addr1->addr[3] == addr2->addr[3]);
	55	}
	56
	57	void
	58	ip_addr_set(struct ip_addr dest, struct ip_addr src)
	59	{
	60	SMEMCPY(dest, src, sizeof(struct ip_addr));
	61	/* dest->addr[0] = src->addr[0];
	62	dest->addr[1] = src->addr[1];
	63	dest->addr[2] = src->addr[2];
	64	dest->addr[3] = src->addr[3];*/
	65	}
	66
	67	u8_t
	68	ip_addr_isany(struct ip_addr *addr)
	69	{
	70	if (addr == NULL) return 1;
	71	return((addr->addr[0] \| addr->addr[1] \| addr->addr[2] \| addr->addr[3]) == 0);
	72	}