lwip - Official mbed lwIP library (version 1.4.0)

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Official mbed lwIP library (version 1.4.0)

Dependents: LwIPNetworking NetServicesMin EthernetInterface EthernetInterface_RSF ... more

Legacy Networking Libraries

This is an mbed 2 networking library. For mbed OS 5, lwip has been integrated with built-in networking interfaces. The networking libraries have been revised to better support additional network stacks and thread safety here.

This library is based on the code of lwIP v1.4.0

Copyright (c) 2001, 2002 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.

core/ipv6/ip6_addr.c@0:51ac1d130fd4, 2012-06-22 (annotated)

Committer:: mbed_official
Date:: Fri Jun 22 09:25:39 2012 +0000
Revision:: 0:51ac1d130fd4

Initial import from lwip-1.4.0: http://download.savannah.gnu.org/releases/lwip/lwip-1.4.0.zip

Who changed what in which revision?

User	Revision	Line number	New contents of line
mbed_official	0:51ac1d130fd4	1	/*
mbed_official	0:51ac1d130fd4	2	* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
mbed_official	0:51ac1d130fd4	3	* All rights reserved.
mbed_official	0:51ac1d130fd4	4	*
mbed_official	0:51ac1d130fd4	5	* Redistribution and use in source and binary forms, with or without modification,
mbed_official	0:51ac1d130fd4	6	* are permitted provided that the following conditions are met:
mbed_official	0:51ac1d130fd4	7	*
mbed_official	0:51ac1d130fd4	8	* 1. Redistributions of source code must retain the above copyright notice,
mbed_official	0:51ac1d130fd4	9	* this list of conditions and the following disclaimer.
mbed_official	0:51ac1d130fd4	10	* 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official	0:51ac1d130fd4	11	* this list of conditions and the following disclaimer in the documentation
mbed_official	0:51ac1d130fd4	12	* and/or other materials provided with the distribution.
mbed_official	0:51ac1d130fd4	13	* 3. The name of the author may not be used to endorse or promote products
mbed_official	0:51ac1d130fd4	14	* derived from this software without specific prior written permission.
mbed_official	0:51ac1d130fd4	15	*
mbed_official	0:51ac1d130fd4	16	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
mbed_official	0:51ac1d130fd4	17	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
mbed_official	0:51ac1d130fd4	18	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
mbed_official	0:51ac1d130fd4	19	* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
mbed_official	0:51ac1d130fd4	20	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
mbed_official	0:51ac1d130fd4	21	* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mbed_official	0:51ac1d130fd4	22	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mbed_official	0:51ac1d130fd4	23	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
mbed_official	0:51ac1d130fd4	24	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
mbed_official	0:51ac1d130fd4	25	* OF SUCH DAMAGE.
mbed_official	0:51ac1d130fd4	26	*
mbed_official	0:51ac1d130fd4	27	* This file is part of the lwIP TCP/IP stack.
mbed_official	0:51ac1d130fd4	28	*
mbed_official	0:51ac1d130fd4	29	* Author: Adam Dunkels <adam@sics.se>
mbed_official	0:51ac1d130fd4	30	*
mbed_official	0:51ac1d130fd4	31	*/
mbed_official	0:51ac1d130fd4	32
mbed_official	0:51ac1d130fd4	33	#include "lwip/opt.h"
mbed_official	0:51ac1d130fd4	34	#include "lwip/ip_addr.h"
mbed_official	0:51ac1d130fd4	35	#include "lwip/inet.h"
mbed_official	0:51ac1d130fd4	36
mbed_official	0:51ac1d130fd4	37	u8_t
mbed_official	0:51ac1d130fd4	38	ip_addr_netcmp(struct ip_addr addr1, struct ip_addr addr2,
mbed_official	0:51ac1d130fd4	39	struct ip_addr *mask)
mbed_official	0:51ac1d130fd4	40	{
mbed_official	0:51ac1d130fd4	41	return((addr1->addr[0] & mask->addr[0]) == (addr2->addr[0] & mask->addr[0]) &&
mbed_official	0:51ac1d130fd4	42	(addr1->addr[1] & mask->addr[1]) == (addr2->addr[1] & mask->addr[1]) &&
mbed_official	0:51ac1d130fd4	43	(addr1->addr[2] & mask->addr[2]) == (addr2->addr[2] & mask->addr[2]) &&
mbed_official	0:51ac1d130fd4	44	(addr1->addr[3] & mask->addr[3]) == (addr2->addr[3] & mask->addr[3]));
mbed_official	0:51ac1d130fd4	45
mbed_official	0:51ac1d130fd4	46	}
mbed_official	0:51ac1d130fd4	47
mbed_official	0:51ac1d130fd4	48	u8_t
mbed_official	0:51ac1d130fd4	49	ip_addr_cmp(struct ip_addr addr1, struct ip_addr addr2)
mbed_official	0:51ac1d130fd4	50	{
mbed_official	0:51ac1d130fd4	51	return(addr1->addr[0] == addr2->addr[0] &&
mbed_official	0:51ac1d130fd4	52	addr1->addr[1] == addr2->addr[1] &&
mbed_official	0:51ac1d130fd4	53	addr1->addr[2] == addr2->addr[2] &&
mbed_official	0:51ac1d130fd4	54	addr1->addr[3] == addr2->addr[3]);
mbed_official	0:51ac1d130fd4	55	}
mbed_official	0:51ac1d130fd4	56
mbed_official	0:51ac1d130fd4	57	void
mbed_official	0:51ac1d130fd4	58	ip_addr_set(struct ip_addr dest, struct ip_addr src)
mbed_official	0:51ac1d130fd4	59	{
mbed_official	0:51ac1d130fd4	60	SMEMCPY(dest, src, sizeof(struct ip_addr));
mbed_official	0:51ac1d130fd4	61	/* dest->addr[0] = src->addr[0];
mbed_official	0:51ac1d130fd4	62	dest->addr[1] = src->addr[1];
mbed_official	0:51ac1d130fd4	63	dest->addr[2] = src->addr[2];
mbed_official	0:51ac1d130fd4	64	dest->addr[3] = src->addr[3];*/
mbed_official	0:51ac1d130fd4	65	}
mbed_official	0:51ac1d130fd4	66
mbed_official	0:51ac1d130fd4	67	u8_t
mbed_official	0:51ac1d130fd4	68	ip_addr_isany(struct ip_addr *addr)
mbed_official	0:51ac1d130fd4	69	{
mbed_official	0:51ac1d130fd4	70	if (addr == NULL) return 1;
mbed_official	0:51ac1d130fd4	71	return((addr->addr[0] \| addr->addr[1] \| addr->addr[2] \| addr->addr[3]) == 0);
mbed_official	0:51ac1d130fd4	72	}