diff -Nur lwip-0.5.3/proj/ecos/Makefile lwip.ecos/proj/ecos/Makefile
--- lwip-0.5.3/proj/ecos/Makefile	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/proj/ecos/Makefile	Tue Apr  2 18:17:49 2002
@@ -0,0 +1,76 @@
+CCDEP=arm-elf-gcc
+CC=arm-elf-gcc
+AR=arm-elf-ar
+#CFLAGS=-g -Wall -DIPv4 -DLWIP_DEBUG 
+#CFLAGS=-Wall -DIPv4
+CFLAGS=-g -Wall -DIPv4
+LDFLAGS=-nostdlib -L$(ECOSLIB) -Ttarget.ld -Wl,-static -Wl,--gc-sections -finit-priority
+LWIPARCH=ecos
+ARFLAGS=rs
+LWIPDIR=../../src
+
+ECOSDIR=/home/jani/ecos/build/lwip/edb/install
+ECOSINC=$(ECOSDIR)/include
+ECOSLIB=$(ECOSDIR)/lib
+
+CFLAGS:=$(CFLAGS) \
+	-I$(LWIPDIR)/include -I$(LWIPDIR)/arch/$(LWIPARCH)/include -I$(LWIPDIR)/include/ipv4 \
+	-Iapps -I$(ECOSINC) -I.
+
+# COREFILES, CORE4FILES: The minimum set of files needed for lwIP.
+COREFILES=$(LWIPDIR)/core/mem.c $(LWIPDIR)/core/memp.c $(LWIPDIR)/core/netif.c \
+	$(LWIPDIR)/core/pbuf.c $(LWIPDIR)/core/stats.c $(LWIPDIR)/core/sys.c \
+        $(LWIPDIR)/core/tcp.c $(LWIPDIR)/core/tcp_input.c \
+        $(LWIPDIR)/core/tcp_output.c $(LWIPDIR)/core/udp.c 
+CORE4FILES=$(LWIPDIR)/core/ipv4/icmp.c $(LWIPDIR)/core/ipv4/ip.c \
+	$(LWIPDIR)/core/inet.c $(LWIPDIR)/core/ipv4/ip_addr.c
+
+
+# APIFILES: The files which implement the sequential and socket APIs.
+APIFILES=$(LWIPDIR)/api/api_lib.c $(LWIPDIR)/api/api_msg.c $(LWIPDIR)/api/tcpip.c \
+	$(LWIPDIR)/api/err.c $(LWIPDIR)/api/sockets.c 
+
+# NETIFFILES: Files implementing various generic network interface functions.'
+NETIFFILES= $(LWIPDIR)/netif/arp.c
+
+# ARCHFILES: Architecture specific files.
+ARCHFILES=$(wildcard $(LWIPDIR)/arch/$(LWIPARCH)/*.c $(LWIPDIR)/arch/$(LWIPARCH)/netif/*.c)
+
+
+# APPFILES: Applications.
+APPFILES=apps/tcpecho.c apps/httpd.c apps/fs.c apps/udpecho.c apps/shell.c
+ 
+# LWIPFILES: All the above.
+LWIPFILES=$(COREFILES) $(CORE4FILES) $(APIFILES) $(NETIFFILES) $(ARCHFILES)
+#LWIPFILESW=$(wildcard $(LWIPFILES))
+#LWIPOBJS=$(notdir $(LWIPFILESW:.c=.o))
+LWIPOBJS=$(notdir $(LWIPFILES:.c=.o))
+
+LWIPLIB=liblwip4.a
+APPLIB=liblwipapps.a
+APPOBJS=$(notdir $(APPFILES:.c=.o))
+
+%.o:
+	$(CC) $(CFLAGS) -c $(<:.o=.c)
+
+all ipv4 compile: simhost 
+.PHONY: all
+
+clean:
+	rm -f *.o $(LWIPLIB) $(APPLIB) simhost *.s .depend* *.core core
+
+depend dep: .depend
+
+include .depend
+
+$(APPLIB): $(APPOBJS)
+	$(AR) $(ARFLAGS) $(APPLIB) $?
+
+$(LWIPLIB): $(LWIPOBJS)
+	$(AR) $(ARFLAGS) $(LWIPLIB) $?
+
+.depend: simhost.c $(LWIPFILES) $(APPFILES)
+	$(CCDEP) $(CFLAGS) -MM $^ > .depend || rm -f .depend
+
+simhost: .depend $(LWIPLIB) $(APPLIB) simhost.o $(APPFILES) $(ECOSLIB)/libtarget.a
+	$(CC) $(CFLAGS) $(LDFLAGS) -o simhost simhost.o $(APPLIB) $(LWIPLIB) 
diff -Nur lwip-0.5.3/proj/ecos/README lwip.ecos/proj/ecos/README
--- lwip-0.5.3/proj/ecos/README	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/proj/ecos/README	Tue Apr  2 19:12:52 2002
@@ -0,0 +1,21 @@
+Building the test prog with ecos+lwip
+
+I suppose you have a working ecos build with your target....
+
+There:
+
+#ecosconfig add net_drivers 
+and select lwip and unselect standalone driver and debugging
+(after patching io/eth's cdl script with ioeth.diff first to see lwIP as an option)
+and build the ecos libs as usual
+
+
+Here:
+
+copy the files in unixsim/apps over here.Don't overwrite makefsdata or else the
+httpd data won't be aligned and won't work on platforms which require >1 alignment (ARM)
+
+modify ECOSDIR in the Makefile to point to your ecos project dir
+#make
+and you should have an ecos exec with lwIP linked to it.
+
diff -Nur lwip-0.5.3/proj/ecos/apps/makefsdata lwip.ecos/proj/ecos/apps/makefsdata
--- lwip-0.5.3/proj/ecos/apps/makefsdata	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/proj/ecos/apps/makefsdata	Tue Apr  2 16:05:10 2002
@@ -0,0 +1,70 @@
+#!/usr/bin/perl
+
+open(OUTPUT, "> fsdata.c");
+
+chdir("fs");
+open(FILES, "find . -type f -o -name CVS -a -prune -type f |");
+
+while($file = <FILES>) {
+
+    chop($file);
+    
+    open(HEADER, "> /tmp/header") || die $!;
+    print(HEADER "HTTP/1.0 200 OK\r\n");
+    if($file =~ /\.html$/) {
+	print(HEADER "Content-Type: text/html\r\n");
+    } elsif($file =~ /\.gif$/) {
+	print(HEADER "Content-Type: image/gif\r\n");
+    } elsif($file =~ /\.png$/) {
+	print(HEADER "Content-Type: image/png\r\n");
+    } elsif($file =~ /\.jpg$/) {
+	print(HEADER "Content-Type: image/jpeg\r\n");
+    } else {
+	print(HEADER "Content-Type: text/plain\r\n");
+    }
+    print(HEADER "\r\n");
+    close(HEADER);
+
+    system("cat /tmp/header $file > /tmp/file");
+    
+    open(FILE, "/tmp/file");
+    unlink("/tmp/file");
+    unlink("/tmp/header");
+
+    $file =~ s/\.//;
+    $fvar = $file;
+    $fvar =~ s-/-_-g;
+    $fvar =~ s-\.-_-g;
+    print(OUTPUT "static const char data".$fvar."[] __attribute__ ((aligned)) = {\n");
+    $i = 0;        
+    while(read(FILE, $data, 1)) {
+        if($i == 0) {
+            print(OUTPUT "\t");
+        }
+        printf(OUTPUT "%#02x, ", unpack("C", $data));
+        $i++;
+        if($i == 10) {
+            print(OUTPUT "\n");
+            $i = 0;
+        }
+    }
+    print(OUTPUT "};\n\n");
+    close(FILE);
+    push(@fvars, $fvar);
+    push(@files, $file);
+}
+
+for($i = 0; $i < @fvars; $i++) {
+    $file = $files[$i];
+    $fvar = $fvars[$i];
+
+    if($i == 0) {
+        $prevfile = "NULL";
+    } else {
+        $prevfile = "file" . $fvars[$i - 1];
+    }
+    print(OUTPUT "static const struct fsdata_file file".$fvar."[] = {{$prevfile, \"$file\", ");
+    print(OUTPUT "data$fvar, sizeof(data$fvar)}};\n\n");
+}
+
+print(OUTPUT "#define FS_ROOT file$fvars[$i - 1]\n\n");
diff -Nur lwip-0.5.3/proj/ecos/lwipopts.h lwip.ecos/proj/ecos/lwipopts.h
--- lwip-0.5.3/proj/ecos/lwipopts.h	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/proj/ecos/lwipopts.h	Fri Mar 29 15:05:06 2002
@@ -0,0 +1,174 @@
+/*
+ * Copyright (c) 2001, 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 lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lw.diff,v 1.2 2002/05/23 23:06:02 jlarmour Exp $
+ */
+#ifndef __LWIPOPTS_H__
+#define __LWIPOPTS_H__
+
+/* ---------- Memory options ---------- */
+/* MEM_ALIGNMENT: should be set to the alignment of the CPU for which
+   lwIP is compiled. 4 byte alignment -> define MEM_ALIGNMENT to 4, 2
+   byte alignment -> define MEM_ALIGNMENT to 2. */
+#define MEM_ALIGNMENT           4
+
+/* MEM_SIZE: the size of the heap memory. If the application will send
+a lot of data that needs to be copied, this should be set high. */
+#define MEM_SIZE                1000
+
+/* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application
+   sends a lot of data out of ROM (or other static memory), this
+   should be set high. */
+#define MEMP_NUM_PBUF           8
+/* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
+   per active UDP "connection". */
+#define MEMP_NUM_UDP_PCB        4
+/* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP
+   connections. */
+#define MEMP_NUM_TCP_PCB        5
+/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP
+   connections. */
+#define MEMP_NUM_TCP_PCB_LISTEN 8
+/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP
+   segments. */
+#define MEMP_NUM_TCP_SEG        8
+/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active
+   timeouts. */
+#define MEMP_NUM_SYS_TIMEOUT    3
+
+
+/* The following four are used only with the sequential API and can be
+   set to 0 if the application only will use the raw API. */
+/* MEMP_NUM_NETBUF: the number of struct netbufs. */
+#define MEMP_NUM_NETBUF         2
+/* MEMP_NUM_NETCONN: the number of struct netconns. */
+#define MEMP_NUM_NETCONN        4
+/* MEMP_NUM_APIMSG: the number of struct api_msg, used for
+   communication between the TCP/IP stack and the sequential
+   programs. */
+#define MEMP_NUM_API_MSG        8
+/* MEMP_NUM_TCPIPMSG: the number of struct tcpip_msg, which is used
+   for sequential API communication and incoming packets. Used in
+   src/api/tcpip.c. */
+#define MEMP_NUM_TCPIP_MSG      8
+
+/* These two control is reclaimer functions should be compiled
+   in. Should always be turned on (1). */
+#define MEM_RECLAIM             1
+#define MEMP_RECLAIM            1
+
+/* ---------- Pbuf options ---------- */
+/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */
+#define PBUF_POOL_SIZE          6
+
+/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */
+#define PBUF_POOL_BUFSIZE       128
+
+/* PBUF_LINK_HLEN: the number of bytes that should be allocated for a
+   link level header. */
+#define PBUF_LINK_HLEN          16
+
+/* ---------- TCP options ---------- */
+#define LWIP_TCP                1
+#define TCP_TTL                 255
+
+/* Controls if TCP should queue segments that arrive out of
+   order. Define to 0 if your device is low on memory. */
+#define TCP_QUEUE_OOSEQ         1
+
+/* TCP Maximum segment size. */
+#define TCP_MSS                 128
+
+/* TCP sender buffer space (bytes). */
+#define TCP_SND_BUF            256 
+
+/* TCP sender buffer space (pbufs). This must be at least = 2 *
+   TCP_SND_BUF/TCP_MSS for things to work. */
+#define TCP_SND_QUEUELEN        4 * TCP_SND_BUF/TCP_MSS
+
+/* TCP receive window. */
+#define TCP_WND                 1024
+
+/* Maximum number of retransmissions of data segments. */
+#define TCP_MAXRTX              12
+
+/* Maximum number of retransmissions of SYN segments. */
+#define TCP_SYNMAXRTX           4
+
+/* ---------- ARP options ---------- */
+#define ARP_TABLE_SIZE 10
+
+/* ---------- IP options ---------- */
+/* Define IP_FORWARD to 1 if you wish to have the ability to forward
+   IP packets across network interfaces. If you are going to run lwIP
+   on a device with only one network interface, define this to 0. */
+#define IP_FORWARD              1
+
+/* If defined to 1, IP options are allowed (but not parsed). If
+   defined to 0, all packets with IP options are dropped. */
+#define IP_OPTIONS              1
+
+/* ---------- ICMP options ---------- */
+#define ICMP_TTL                255
+
+
+/* ---------- DHCP options ---------- */
+/* Define LWIP_DHCP to 1 if you want DHCP configuration of
+   interfaces. DHCP is not implemented in lwIP 0.5.1, however, so
+   turning this on does currently not work. */
+#define LWIP_DHCP               0
+
+/* 1 if you want to do an ARP check on the offered address
+   (recommended). */
+#define DHCP_DOES_ARP_CHECK     1
+
+/* ---------- UDP options ---------- */
+#define LWIP_UDP                1
+#define UDP_TTL                 255
+
+
+/* ---------- Statistics options ---------- */
+#define STATS
+
+#ifdef STATS
+#define LINK_STATS
+#define IP_STATS
+#define ICMP_STATS
+#define UDP_STATS
+#define TCP_STATS
+#define MEM_STATS
+#define MEMP_STATS
+#define PBUF_STATS
+#define SYS_STATS
+#endif /* STATS */
+
+#endif /* __LWIPOPTS_H__ */
diff -Nur lwip-0.5.3/proj/ecos/simhost.c lwip.ecos/proj/ecos/simhost.c
--- lwip-0.5.3/proj/ecos/simhost.c	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/proj/ecos/simhost.c	Fri Mar 29 14:45:33 2002
@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 2001, 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 lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lw.diff,v 1.2 2002/05/23 23:06:02 jlarmour Exp $
+ */
+
+#include "lwip/debug.h"
+
+#include <unistd.h>
+
+#include "lwip/opt.h"
+
+#include "lwip/mem.h"
+#include "lwip/memp.h"
+#include "lwip/sys.h"
+
+#include "lwip/stats.h"
+
+#include "netif/ecosif.h"
+//#include "netif/loopif.h"
+
+#include "lwip/tcpip.h"
+
+#include "lwip/ip_addr.h"
+
+#include "arch/perf.h"
+
+#include "httpd.h"
+#include "tcpecho.h"
+#include "udpecho.h"
+#include "shell.h"
+
+/*-----------------------------------------------------------------------------------*/
+static void
+tcp_timeout(void *data)
+{
+#if TCP_DEBUG
+  tcp_debug_print_pcbs();
+#endif /* TCP_DEBUG */
+  sys_timeout(5000, tcp_timeout, NULL);
+}
+/*-----------------------------------------------------------------------------------*/
+static void
+tcpip_init_done(void *arg)
+{
+  sys_sem_t *sem;
+  sem = arg;
+  sys_sem_signal(*sem);
+}
+/*-----------------------------------------------------------------------------------*/
+static void
+main_thread(void *arg)
+{
+  struct ip_addr ipaddr, netmask, gw;
+  sys_sem_t sem;
+  netif_init();
+
+  sem = sys_sem_new(0);
+  tcpip_init(tcpip_init_done, &sem);
+  sys_sem_wait(sem);
+  sys_sem_free(sem);
+  printf("TCP/IP initialized.\n");
+  
+  IP4_ADDR(&gw, 192,168,1,1);
+  IP4_ADDR(&ipaddr, 192,168,1,99);
+  IP4_ADDR(&netmask, 255,255,255,0);
+  
+  netif_set_default(netif_add(&ipaddr, &netmask, &gw, ecosif_init, tcpip_input));
+  IP4_ADDR(&gw, 127,0,0,1);
+  IP4_ADDR(&ipaddr, 127,0,0,1);
+  IP4_ADDR(&netmask, 255,0,0,0);
+  
+//  netif_add(&ipaddr, &netmask, &gw, loopif_init, tcpip_input);
+//  udpecho_init();
+//  shell_init();
+//  tcpecho_init();
+  httpd_init();
+  printf("Applications started.\n");
+  /* Block for ever. */
+  sem = sys_sem_new(0);
+  sys_sem_wait(sem);
+}
+/*-----------------------------------------------------------------------------------*/
+int
+main(int argc, char **argv)
+{
+#ifdef STATS
+  stats_init();
+#endif /* STATS */
+  sys_init();
+  mem_init();
+  memp_init();
+  pbuf_init();
+
+
+  
+  printf("System initialized.\n");
+    
+  sys_thread_new((void *)(main_thread), (void*)"simhost");
+   while(1)
+   {cyg_thread_delay(1000);}
+  return 0;
+}
+/*-----------------------------------------------------------------------------------*/
+
+
+
+
+
+
+
+
diff -Nur lwip-0.5.3/src/arch/ecos/README lwip.ecos/src/arch/ecos/README
--- lwip-0.5.3/src/arch/ecos/README	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/src/arch/ecos/README	Tue Apr  2 19:17:23 2002
@@ -0,0 +1,47 @@
+eCos port of lwIP
+======================
+
+Introduction
+-------------
+This is a beta version of the lwIP port to eCos.It was tested on a Cirrus Logic 
+EDB72111 board with ARM and it responds to ping and runs the unixsim apps(http,tcpecho,shell,etc)
+The motivation behind it is that the current TCP stack in eCos is too large both
+as code size and as memory footprint for a board with 128K FLASH + 128K RAM.
+BTW this port is just working it still need optimization.
+
+Description
+------------
+
+The port consists of 3 main parts
+
+I) the eCos specific sys_arch implemetation 
+- src/arch/ecos/sys_arch.c
+- sys/arch/ecos/include/....
+This maps lwIP semaphores, mailboxes and threads to their eCos counterparts
+along with the required header files defining endianness and primitive data types
+
+II) the interface to the hw network drivers 	
+- io/eth/lwip/eth_drv.c in the eCos repository
+This part consists of a hardware independent net driver which glues eCos
+low-level ethernet drivers to the lwIP stack (modeled after the two such drivers
+existing in eCos : the standalone for RedBoot and the other one for the BSD stack)
+This driver implements the 3 callbacks needed by hw specific drivers.
+It currently uses the polling model like the standalone driver and not interrupts.
+This makes the whole thing less intrusive 
+
+III) the eCos specific lwIP netif
+- src/arch/ecos/netif/ecosif.c
+This file implements the lwIP netif model with init/input/output functions.This 
+calls into and is called from eth_drv.c described above
+
+Usage
+-------
+
+The way to build an eCos app with lwIP is to just link the lwIP libs to your app and then
+the whole thing to libtarget.a from eCos as usual.So this way lwIP is more like part of you app
+than part of eCos.For an example of Makefile see the one in proj/ecos heavily based on 
+unixim/ecos from the lwip distribution.
+
+The organisation should change.Ideally there would be an eCos package
+to simply add to your project and configure just like any other package.
+
diff -Nur lwip-0.5.3/src/arch/ecos/include/arch/cc.h lwip.ecos/src/arch/ecos/include/arch/cc.h
--- lwip-0.5.3/src/arch/ecos/include/arch/cc.h	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/src/arch/ecos/include/arch/cc.h	Thu Mar 14 23:23:00 2002
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2001, 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 lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lw.diff,v 1.2 2002/05/23 23:06:02 jlarmour Exp $
+ */
+#ifndef __ARCH_CC_H__
+#define __ARCH_CC_H__
+
+typedef unsigned   char    u8_t;
+typedef signed     char    s8_t;
+typedef unsigned   short   u16_t;
+typedef signed     short   s16_t;
+typedef unsigned   long    u32_t;
+typedef signed     long    s32_t;
+
+
+#define PACK_STRUCT_FIELD(x) x __attribute__((packed))
+#define PACK_STRUCT_STRUCT __attribute__((packed))
+#define PACK_STRUCT_BEGIN
+#define PACK_STRUCT_END
+
+#endif /* __ARCH_CC_H__ */
diff -Nur lwip-0.5.3/src/arch/ecos/include/arch/cpu.h lwip.ecos/src/arch/ecos/include/arch/cpu.h
--- lwip-0.5.3/src/arch/ecos/include/arch/cpu.h	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/src/arch/ecos/include/arch/cpu.h	Fri Mar 15 22:08:00 2002
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2001, 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 lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lw.diff,v 1.2 2002/05/23 23:06:02 jlarmour Exp $
+ */
+#ifndef __ARCH_CPU_H__
+#define __ARCH_CPU_H__
+
+#if (CYG_BYTEORDER == CYG_LSBFIRST)
+#define BYTE_ORDER LITTLE_ENDIAN
+#else
+#define BYTE_ORDER BIG_ENDIAN
+#endif
+
+#endif /* __ARCH_CPU_H__ */
diff -Nur lwip-0.5.3/src/arch/ecos/include/arch/init.h lwip.ecos/src/arch/ecos/include/arch/init.h
--- lwip-0.5.3/src/arch/ecos/include/arch/init.h	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/src/arch/ecos/include/arch/init.h	Wed Dec 12 00:00:00 2001
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2001, 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 lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lw.diff,v 1.2 2002/05/23 23:06:02 jlarmour Exp $
+ */
+#ifndef __ARCH_INIT_H__
+#define __ARCH_INIT_H__
+
+#define TCPIP_INIT_DONE(arg) sys_sem_signal(*(sys_sem_t *)arg)
+
+#endif /* __ARCH_INIT_H__ */
+
+
+
+
diff -Nur lwip-0.5.3/src/arch/ecos/include/arch/lib.h lwip.ecos/src/arch/ecos/include/arch/lib.h
--- lwip-0.5.3/src/arch/ecos/include/arch/lib.h	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/src/arch/ecos/include/arch/lib.h	Thu Mar 14 23:27:00 2002
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2001, 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 lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lw.diff,v 1.2 2002/05/23 23:06:02 jlarmour Exp $
+ */
+#ifndef __ARCH_LIB_H__
+#define __ARCH_LIB_H__
+
+#endif /* __ARCH_LIB_H__ */
diff -Nur lwip-0.5.3/src/arch/ecos/include/arch/perf.h lwip.ecos/src/arch/ecos/include/arch/perf.h
--- lwip-0.5.3/src/arch/ecos/include/arch/perf.h	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/src/arch/ecos/include/arch/perf.h	Wed Dec 12 00:00:00 2001
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2001, 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 lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lw.diff,v 1.2 2002/05/23 23:06:02 jlarmour Exp $
+ */
+#ifndef __PERF_H__
+#define __PERF_H__
+
+#define PERF_START    /* null definition */
+#define PERF_STOP(x)  /* null definition */
+
+#endif /* __PERF_H__ */
diff -Nur lwip-0.5.3/src/arch/ecos/include/arch/sys_arch.h lwip.ecos/src/arch/ecos/include/arch/sys_arch.h
--- lwip-0.5.3/src/arch/ecos/include/arch/sys_arch.h	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/src/arch/ecos/include/arch/sys_arch.h	Thu Mar 14 23:53:00 2002
@@ -0,0 +1,13 @@
+#ifndef __SYS_ECOS_H__
+#define __SYS_ECOS_H__
+
+#include <cyg/kernel/kapi.h>
+
+#define SYS_MBOX_NULL (sys_mbox_t)NULL 
+#define SYS_SEM_NULL  (sys_sem_t)NULL
+
+typedef cyg_sem_t * sys_sem_t;
+typedef cyg_handle_t sys_mbox_t;
+typedef cyg_thread * sys_thread_t;
+#endif /* __SYS_ECOS_H__ */
+
diff -Nur lwip-0.5.3/src/arch/ecos/include/netif/ecosif.h lwip.ecos/src/arch/ecos/include/netif/ecosif.h
--- lwip-0.5.3/src/arch/ecos/include/netif/ecosif.h	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/src/arch/ecos/include/netif/ecosif.h	Tue Mar 19 23:38:00 2002
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2001, 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 lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lw.diff,v 1.2 2002/05/23 23:06:02 jlarmour Exp $
+ */
+#ifndef __ECOSIF_H__
+#define __ECOSIF_H__
+
+#include "lwip/netif.h"
+
+void ecosif_init(struct netif *netif);
+
+#endif /* __ECOSIF_H__ */
diff -Nur lwip-0.5.3/src/arch/ecos/lib_arch.c lwip.ecos/src/arch/ecos/lib_arch.c
--- lwip-0.5.3/src/arch/ecos/lib_arch.c	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/src/arch/ecos/lib_arch.c	Wed Dec 12 00:00:00 2001
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2001, 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 lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lw.diff,v 1.2 2002/05/23 23:06:02 jlarmour Exp $
+ */
+
+/* These are generic implementations of various library functions used
+ * throughout the lwIP code. When porting, those should be optimized
+ * for the particular processor architecture, preferably coded in
+ * assembler.
+ */
+
+#include "lwip/arch.h"
+
+u16_t
+htons(u16_t n)
+{
+  return ((n & 0xff) << 8) | ((n & 0xff00) >> 8);
+}
+/*-----------------------------------------------------------------------------------*/
+u16_t
+ntohs(u16_t n)
+{
+  return htons(n);
+}
+/*-----------------------------------------------------------------------------------*/
+u32_t
+htonl(u32_t n)
+{
+  return ((n & 0xff) << 24) |
+    ((n & 0xff00) << 8) |
+    ((n & 0xff0000) >> 8) |
+    ((n & 0xff000000) >> 24);
+}
+/*-----------------------------------------------------------------------------------*/
+u32_t
+ntohl(u32_t n)
+{
+  return htonl(n);
+}
+/*-----------------------------------------------------------------------------------*/
+void
+bcopy(const void *src, void *dst, unsigned int size)
+{
+  char *csrc, *cdst;
+  unsigned int i;
+
+  csrc = (char *)src;
+  cdst = dst;
+  
+  for(i = 0; i < size; ++i) {
+    cdst[i] = csrc[i];
+  }    
+}
+/*-----------------------------------------------------------------------------------*/
+void
+bzero(void *s, int n)
+{
+  for(--n ;n >= 0; --n) {
+    ((char *)s)[n] = 0;
+  }
+}
+/*-----------------------------------------------------------------------------------*/
diff -Nur lwip-0.5.3/src/arch/ecos/netif/ecosif.c lwip.ecos/src/arch/ecos/netif/ecosif.c
--- lwip-0.5.3/src/arch/ecos/netif/ecosif.c	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/src/arch/ecos/netif/ecosif.c	Tue Apr  2 16:13:46 2002
@@ -0,0 +1,327 @@
+/*
+ * Copyright (c) 2001, 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 lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lw.diff,v 1.2 2002/05/23 23:06:02 jlarmour Exp $
+ */
+
+#include "lwip/debug.h"
+
+#include "lwip/opt.h"
+#include "lwip/def.h"
+#include "lwip/ip.h"
+#include "lwip/mem.h"
+#include "lwip/pbuf.h"
+#include "lwip/sys.h"
+
+#include "netif/arp.h"
+
+
+#define IFNAME0 'c'
+#define IFNAME1 'y'
+
+static const struct eth_addr ethbroadcast = {{0xff,0xff,0xff,0xff,0xff,0xff}};
+
+struct ecosif {
+  struct eth_addr *ethaddr;
+  /* Add whatever per-interface state that is needed here. */
+};
+
+static struct netif *this_netif;
+
+/* Forward declarations. */
+static void  ecosif_input(struct netif *netif, char*buf, int len);
+static err_t ecosif_output(struct netif *netif, struct pbuf *p,
+			       struct ip_addr *ipaddr);
+
+/* Entry points in the eCos hw independent driver */
+extern void eth_drv_write(char *, char *, int);
+extern void init_hw_drivers(unsigned char *hw_addr,void (*pig)(char *,int));
+
+/*
+ * This is called from eCos when data is read from the driver
+ */
+void lwip_input(char *buf, int len)
+{
+	ecosif_input((struct netif*)this_netif,buf,len);	
+}
+
+
+extern void input_thread(void *arg);
+
+static void
+low_level_init(struct netif *netif)
+{
+  struct ecosif *ecosif;
+
+  ecosif = netif->state;
+
+  /* Init eCos low level driver which sets MAC address */
+  init_hw_drivers((unsigned char *)ecosif->ethaddr->addr,lwip_input);	 
+  printf("MAC address : %X:%X:%X:%X:%X:%X\n",
+		  (unsigned char)(ecosif->ethaddr->addr[0]),	
+		  (unsigned char)(ecosif->ethaddr->addr[1]),	
+		  (unsigned char)(ecosif->ethaddr->addr[2]),	
+		  (unsigned char)(ecosif->ethaddr->addr[3]),	
+		  (unsigned char)(ecosif->ethaddr->addr[4]),	
+		  (unsigned char)(ecosif->ethaddr->addr[5]));
+  sys_thread_new(input_thread,(void*)"poll_thread");
+}
+/*
+ * low_level_output():
+ *
+ * Should do the actual transmission of the packet. The packet is
+ * contained in the pbuf that is passed to the function. This pbuf
+ * might be chained.We pass the data down to the eCos hw independent 
+ * ethernet driver
+ */
+
+static err_t
+low_level_output(struct ecosif *ecosif, struct pbuf *p)
+{
+  struct pbuf *q;
+  char buf[1500];
+  char *bufptr;
+  
+  /* initiate transfer(); */
+  bufptr = &buf[0];
+  
+  for(q = p; q != NULL; q = q->next) {
+    /* Send the data from the pbuf to the interface, one pbuf at a
+       time. The size of the data in each pbuf is kept in the ->len
+       variable. */    
+    /* send data from(q->payload, q->len); */
+    bcopy(q->payload, bufptr, q->len);
+    bufptr += q->len;
+  }
+
+  /* signal that packet should be sent(); */
+  eth_drv_write(NULL, buf, p->tot_len);
+  return ERR_OK;
+}
+/*-----------------------------------------------------------------------------------*/
+/*
+ * ecosif_output():
+ *
+ * This function is called by the TCP/IP stack when an IP packet
+ * should be sent. It calls the function called low_level_output() to
+ * do the actuall transmission of the packet.
+ *
+ */
+/*-----------------------------------------------------------------------------------*/
+static err_t
+ecosif_output(struct netif *netif, struct pbuf *p,
+		  struct ip_addr *ipaddr)
+{
+  struct ecosif *ecosif;
+  struct pbuf *q;
+  struct eth_hdr *ethhdr;
+  struct eth_addr *dest, mcastaddr;
+  struct ip_addr *queryaddr;
+  err_t err;
+  u8_t i;
+  
+  ecosif = netif->state;
+
+  /* Make room for Ethernet header. */
+  if(pbuf_header(p, sizeof(struct eth_hdr)) != 0) {
+    /* The pbuf_header() call shouldn't fail, but we allocate an extra
+       pbuf just in case. */
+    q = pbuf_alloc(PBUF_LINK, sizeof(struct eth_hdr), PBUF_RAM);
+    if(q == NULL) {
+      return ERR_MEM;
+    }
+    pbuf_chain(q, p);
+    p = q;
+  }
+
+  /* Construct Ethernet header. Start with looking up deciding which
+     MAC address to use as a destination address. Broadcasts and
+     multicasts are special, all other addresses are looked up in the
+     ARP table. */
+  queryaddr = ipaddr;
+  if(ip_addr_isany(ipaddr) ||
+     ip_addr_isbroadcast(ipaddr, &(netif->netmask))) {
+    dest = (struct eth_addr *)&ethbroadcast;
+  } else if(ip_addr_ismulticast(ipaddr)) {
+    /* Hash IP multicast address to MAC address. */
+    mcastaddr.addr[0] = 0x01;
+    mcastaddr.addr[1] = 0x0;
+    mcastaddr.addr[2] = 0x5e;
+    mcastaddr.addr[3] = ip4_addr2(ipaddr) & 0x7f;
+    mcastaddr.addr[4] = ip4_addr3(ipaddr);
+    mcastaddr.addr[5] = ip4_addr4(ipaddr);
+    dest = &mcastaddr;
+  } else {
+    if(ip_addr_maskcmp(ipaddr, &(netif->ip_addr), &(netif->netmask))) {
+      /* Use destination IP address if the destination is on the same
+         subnet as we are. */
+      queryaddr = ipaddr;
+    } else {
+      /* Otherwise we use the default router as the address to send
+         the Ethernet frame to. */
+      queryaddr = &(netif->gw);
+    }
+    dest = arp_lookup(queryaddr);
+  }
+
+
+  /* If the arp_lookup() didn't find an address, we send out an ARP
+     query for the IP address. */
+  if(dest == NULL) {
+    q = arp_query(netif, ecosif->ethaddr, queryaddr);
+    if(q != NULL) {
+      printf("Sending ARP after query\n");
+      err = low_level_output(ecosif, q);
+      pbuf_free(q);
+      return err;
+    }
+    return ERR_MEM;
+  }
+  ethhdr = p->payload;
+  
+  for(i = 0; i < 6; i++) {
+    ethhdr->dest.addr[i] = dest->addr[i];
+    ethhdr->src.addr[i] = ecosif->ethaddr->addr[i];
+  }
+  
+  ethhdr->type = htons(ETHTYPE_IP);
+  
+  return low_level_output(ecosif, p);
+
+}
+
+
+
+/*
+ * ecosif_input():
+ * This function is called when the eCos hw independent driver
+ * has some data to pass up to lwIP.It does it through lwip_input.
+ */
+
+static void
+ecosif_input(struct netif *netif, char * bufptr, int len)
+{
+  struct ecosif *ecosif;
+  struct eth_hdr *ethhdr;
+  struct pbuf *p, *q;
+
+  ecosif = netif->state;
+  /* We allocate a pbuf chain of pbufs from the pool. */
+  p = pbuf_alloc(PBUF_LINK, len, PBUF_POOL);
+  
+  if(p != NULL) {
+    /* We iterate over the pbuf chain until we have read the entire
+       packet into the pbuf. */
+    for(q = p; q != NULL; q = q->next) {
+      /* Read enough bytes to fill this pbuf in the chain. The
+         avaliable data in the pbuf is given by the q->len
+         variable. */
+      /* read data into(q->payload, q->len); */
+      bcopy(bufptr, q->payload, q->len);
+      bufptr += q->len;
+    }
+    /* acknowledge that packet has been read(); */
+  } else {
+    /* drop packet(); */
+  }
+
+  if(p == NULL) {
+    DEBUGF(ECOSIF_DEBUG, ("ecosif_input: low_level_input returned NULL\n"));
+    return;
+  }
+  ethhdr = p->payload;
+
+  switch(htons(ethhdr->type)) {
+  case ETHTYPE_IP:
+    DEBUGF(ECOSIF_DEBUG, ("ecosif_input: IP packet\n"));
+    arp_ip_input(netif, p);
+    pbuf_header(p, -14);
+#if LWIP_DEBUG    
+    if(ip_lookup(p->payload, netif)) {
+#endif	    
+      netif->input(p, netif);
+#if LWIP_DEBUG    
+    } else {
+      printf("ecosif_input: lookup failed!\n");
+    }
+#endif	    
+    break;
+  case ETHTYPE_ARP:
+    DEBUGF(ECOSIF_DEBUG, ("ecosif_input: ARP packet\n"));
+    p = arp_arp_input(netif, ecosif->ethaddr, p);
+    if(p != NULL) {
+      DEBUGF(ECOSIF_DEBUG, ("ecosif_input: Sending ARP reply\n"));
+      low_level_output(ecosif, p);
+      pbuf_free(p);
+    }
+    break;
+  default:
+    pbuf_free(p);
+    break;
+  }
+}
+/*-----------------------------------------------------------------------------------*/
+static void
+arp_timer(void *arg)
+{
+  arp_tmr();
+  sys_timeout(ARP_TMR_INTERVAL, (sys_timeout_handler)arp_timer, NULL);
+}
+/*-----------------------------------------------------------------------------------*/
+/*
+ * ecosif_init():
+ *
+ * Should be called at the beginning of the program to set up the
+ * network interface. It calls the function low_level_init() to do the
+ * actual setup of the hardware.
+ *
+ */
+/*-----------------------------------------------------------------------------------*/
+void
+ecosif_init(struct netif *netif)
+{
+  struct ecosif *ecosif;
+
+  this_netif = netif;  
+  ecosif = mem_malloc(sizeof(struct ecosif));
+  netif->state = ecosif;
+  netif->name[0] = IFNAME0;
+  netif->name[1] = IFNAME1;
+  netif->output = ecosif_output;
+  
+  ecosif->ethaddr = (struct eth_addr *)&(netif->hwaddr[0]);
+  low_level_init(netif);
+  arp_init();
+  
+  sys_timeout(ARP_TMR_INTERVAL, (sys_timeout_handler)arp_timer, NULL);
+}
+/*-----------------------------------------------------------------------------------*/
diff -Nur lwip-0.5.3/src/arch/ecos/sys_arch.c lwip.ecos/src/arch/ecos/sys_arch.c
--- lwip-0.5.3/src/arch/ecos/sys_arch.c	Thu Jan  1 02:00:00 1970
+++ lwip.ecos/src/arch/ecos/sys_arch.c	Tue Apr  2 19:05:58 2002
@@ -0,0 +1,181 @@
+/* 
+ * This file implements the eCos specific sys_arch functions used by lwIP 
+ */
+
+#include <cyg/kernel/kapi.h>
+
+#include "lwip/sys.h"
+#include "lwip/def.h"
+#include "lwip/debug.h"
+
+//FIXME use CYG_HWR_whatever for RTC 
+
+/* lwIp timeouts are milliseconds, eCos time unit is clock tick */
+//1s = 1000ms = 100ticks (eCos default is 100 tick per second for most(all?) platforms) 
+#define tick_to_msec(tick)	((u16_t)(tick*10+1)) 
+#define msec_to_tick(msec)	((cyg_tick_count_t)(msec+9)/10)
+
+/* We use a common var mempool for allocating semaphores, mboxes and threads... */
+#define VARMEMPOOLSIZE 0x4000	/* tunable */
+static char memvar[VARMEMPOOLSIZE];
+static cyg_mempool_var var_mempool;
+static cyg_handle_t var_mempool_h;
+
+/* ...and a fix mempool for allocating thread stacks */
+
+#define LWIP_THREAD_STACK_SIZE 0x2000 	/* tunable */
+#define MAX_THREADS	4	/* tunable */
+
+static char memfix[LWIP_THREAD_STACK_SIZE * MAX_THREADS];
+static cyg_mempool_fix fix_mempool;
+static cyg_handle_t fix_mempool_h;
+
+/* List of threads: associate eCos thread info with lwIP timeout info */
+struct lwip_thread {
+	struct lwip_thread * next;
+	struct sys_timeouts to;
+	cyg_handle_t th;
+	cyg_thread t;		
+} *threads;
+
+/*FIXME: the timeout struct used for non-lwIP threads -eCos 
+ *	there might be threads which are not created through
+ *	sys_thread_new but access lwIP stuff (i.e. net interrupt)
+ *	This must go away.
+ * */
+struct sys_timeouts global_timeout;
+
+/* Set up memory pools and threads*/
+void sys_init(void)
+{
+	cyg_mempool_var_create(memvar, sizeof(memvar), &var_mempool_h, &var_mempool);	
+
+	cyg_mempool_fix_create(memfix, sizeof(memfix), 
+			LWIP_THREAD_STACK_SIZE, &fix_mempool_h, &fix_mempool);	
+	threads = NULL;
+	global_timeout.next = NULL;
+}
+
+/* Message boxes */
+
+sys_mbox_t sys_mbox_new(void)
+{
+	cyg_mbox * mbox;
+	cyg_handle_t m;
+	mbox = (cyg_mbox *)cyg_mempool_var_alloc(var_mempool_h, sizeof(cyg_mbox));
+	cyg_mbox_create(&m, mbox);
+	return m;
+}
+
+void sys_mbox_free(sys_mbox_t mbox)
+{
+	cyg_mbox_delete(mbox);
+}
+
+//FIXME returns false maybe retry?
+void sys_mbox_post(sys_mbox_t mbox, void *data)
+{
+#if 0	
+	if (cyg_mbox_put(mbox, data)==false)
+		printf("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAaaa\n");
+#endif
+	cyg_mbox_put(mbox,data);
+}
+
+u16_t sys_arch_mbox_fetch(sys_mbox_t mbox, void **data, u16_t timeout)
+{
+	void *d;
+	cyg_tick_count_t end_time, start_time,lool;
+	static int pig = 0;
+	if (timeout) {
+		start_time = cyg_current_time();
+		lool = start_time + msec_to_tick(timeout);
+		d = cyg_mbox_timed_get(mbox, lool);
+		end_time = cyg_current_time();
+
+		if (d == NULL)
+			return 0;
+	} else {
+		d = cyg_mbox_get(mbox);
+	}	
+	*data = d;
+	return tick_to_msec(end_time - start_time);	
+}
+
+/* Semaphores */
+
+sys_sem_t sys_sem_new(u8_t count)
+{
+	sys_sem_t sem;
+
+	sem = (cyg_sem_t *)cyg_mempool_var_alloc(var_mempool_h, sizeof(cyg_sem_t));
+	cyg_semaphore_init(sem, count);
+	return sem;
+}
+
+u16_t sys_arch_sem_wait(sys_sem_t sem, u16_t timeout)
+{
+	cyg_bool_t r;
+	cyg_tick_count_t end_time, start_time;
+
+	if (timeout) {
+		start_time = cyg_current_time();
+		r = cyg_semaphore_timed_wait(sem, start_time + msec_to_tick(timeout));
+		end_time = cyg_current_time();
+
+		if (r == false)
+			return 0;
+	} else {
+		cyg_semaphore_wait(sem);
+	}
+
+	return tick_to_msec(end_time - start_time);	
+}
+
+void sys_sem_signal(sys_sem_t sem)
+{
+	cyg_semaphore_post(sem);
+}
+
+void sys_sem_free(sys_sem_t sem)
+{
+	cyg_semaphore_destroy(sem);
+}
+
+/* Thread creation */
+
+void sys_thread_new(void (*function) (void *arg), void *arg)
+{
+	struct lwip_thread * nt;
+	void * stack;
+	
+	nt = (struct lwip_thread *)cyg_mempool_var_alloc(var_mempool_h, sizeof(struct lwip_thread));
+
+	nt->next = threads;
+	nt->to.next = NULL;
+	
+	threads = nt;
+
+	stack = cyg_mempool_fix_alloc(fix_mempool_h);
+
+	cyg_thread_create(12, (cyg_thread_entry_t *)function, (cyg_addrword_t)arg,
+			(char *)arg , stack, LWIP_THREAD_STACK_SIZE, &(nt->th), &(nt->t) );
+
+	cyg_thread_resume(nt->th);
+}
+
+/* Find current thread's timeout info */
+
+struct sys_timeouts *sys_arch_timeouts(void)
+{
+	cyg_handle_t ct;
+	struct lwip_thread *t;
+
+	ct = cyg_thread_self();
+	for(t = threads; t; t = t->next)
+		if (t->th == ct)
+			return &(t->to);
+	
+	printf("tmobad@@@@@\n");	
+	return &global_timeout; 
+}