A version of LWIP, provided for backwards compatibility.

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Show/hide line numbers ip6_addr.c Source File

ip6_addr.c

00001 /*
00002  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
00003  * All rights reserved. 
00004  * 
00005  * Redistribution and use in source and binary forms, with or without modification, 
00006  * are permitted provided that the following conditions are met:
00007  *
00008  * 1. Redistributions of source code must retain the above copyright notice,
00009  *    this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright notice,
00011  *    this list of conditions and the following disclaimer in the documentation
00012  *    and/or other materials provided with the distribution.
00013  * 3. The name of the author may not be used to endorse or promote products
00014  *    derived from this software without specific prior written permission. 
00015  *
00016  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
00017  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
00018  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
00019  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
00020  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
00021  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
00022  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
00023  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
00024  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
00025  * OF SUCH DAMAGE.
00026  *
00027  * This file is part of the lwIP TCP/IP stack.
00028  * 
00029  * Author: Adam Dunkels <adam@sics.se>
00030  *
00031  */
00032 
00033 #include "lwip/opt.h"
00034 
00035 #if IPv6
00036 
00037 #include "ipv6/lwip/ip_addr.h"
00038 #include "ipv6/lwip/inet.h"
00039 #include "lwip/netif.h"
00040 #include "lwip/def.h"
00041 
00042 u8_t
00043 ip_addr_netcmp(struct ip_addr *addr1, struct ip_addr *addr2,
00044                 struct ip_addr *mask)
00045 {
00046   return((addr1->addr[0] & mask->addr[0]) == (addr2->addr[0] & mask->addr[0]) &&
00047          (addr1->addr[1] & mask->addr[1]) == (addr2->addr[1] & mask->addr[1]) &&
00048          (addr1->addr[2] & mask->addr[2]) == (addr2->addr[2] & mask->addr[2]) &&
00049          (addr1->addr[3] & mask->addr[3]) == (addr2->addr[3] & mask->addr[3]));
00050         
00051 }
00052 
00053 u8_t
00054 ip_addr_cmp(struct ip_addr *addr1, struct ip_addr *addr2)
00055 {
00056   return(addr1->addr[0] == addr2->addr[0] &&
00057          addr1->addr[1] == addr2->addr[1] &&
00058          addr1->addr[2] == addr2->addr[2] &&
00059          addr1->addr[3] == addr2->addr[3]);
00060 }
00061 
00062 void
00063 ip_addr_set(struct ip_addr *dest, struct ip_addr *src)
00064 {
00065   SMEMCPY(dest, src, sizeof(struct ip_addr));
00066   /*  dest->addr[0] = src->addr[0];
00067   dest->addr[1] = src->addr[1];
00068   dest->addr[2] = src->addr[2];
00069   dest->addr[3] = src->addr[3];*/
00070 }
00071 
00072 u8_t
00073 ip_addr_isany(struct ip_addr *addr)
00074 {
00075   if (addr == NULL) return 1;
00076   return((addr->addr[0] | addr->addr[1] | addr->addr[2] | addr->addr[3]) == 0);
00077 }
00078 
00079 #endif /* IPv6 */