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<h1>ip_addr.h</h1><div class="fragment"><pre>00001 <span class="comment">/*</span>
00002 <span class="comment"> * Copyright (c) 2001, Swedish Institute of Computer Science.</span>
00003 <span class="comment"> * All rights reserved. </span>
00004 <span class="comment"> *</span>
00005 <span class="comment"> * Redistribution and use in source and binary forms, with or without </span>
00006 <span class="comment"> * modification, are permitted provided that the following conditions </span>
00007 <span class="comment"> * are met: </span>
00008 <span class="comment"> * 1. Redistributions of source code must retain the above copyright </span>
00009 <span class="comment"> * notice, this list of conditions and the following disclaimer. </span>
00010 <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright </span>
00011 <span class="comment"> * notice, this list of conditions and the following disclaimer in the </span>
00012 <span class="comment"> * documentation and/or other materials provided with the distribution. </span>
00013 <span class="comment"> * 3. Neither the name of the Institute nor the names of its contributors </span>
00014 <span class="comment"> * may be used to endorse or promote products derived from this software </span>
00015 <span class="comment"> * without specific prior written permission. </span>
00016 <span class="comment"> *</span>
00017 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND </span>
00018 <span class="comment"> * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE </span>
00019 <span class="comment"> * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE </span>
00020 <span class="comment"> * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE </span>
00021 <span class="comment"> * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL </span>
00022 <span class="comment"> * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS </span>
00023 <span class="comment"> * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) </span>
00024 <span class="comment"> * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT </span>
00025 <span class="comment"> * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY </span>
00026 <span class="comment"> * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF </span>
00027 <span class="comment"> * SUCH DAMAGE. </span>
00028 <span class="comment"> *</span>
00029 <span class="comment"> * This file is part of the lwIP TCP/IP stack.</span>
00030 <span class="comment"> * </span>
00031 <span class="comment"> * Author: Adam Dunkels <adam@sics.se></span>
00032 <span class="comment"> *</span>
00033 <span class="comment"> * $Id$</span>
00034 <span class="comment"> */</span>
00035 <span class="preprocessor">#ifndef __LWIP_IP_ADDR_H__</span>
00036 <span class="preprocessor"></span><span class="preprocessor">#define __LWIP_IP_ADDR_H__</span>
00037 <span class="preprocessor"></span>
00038 <span class="preprocessor">#include "net/arch.h"</span>
00039
00040 <span class="preprocessor">#define IP_ADDR_ANY 0</span>
00041 <span class="preprocessor"></span>
00042 <span class="preprocessor">#define IP_ADDR_BROADCAST (&ip_addr_broadcast)</span>
00043 <span class="preprocessor"></span>
00044 PACK_STRUCT_BEGIN
00045 <span class="keyword">struct </span>ip_addr {
00046 PACK_STRUCT_FIELD(uInt32 addr);
00047 } PACK_STRUCT_STRUCT;
00048 PACK_STRUCT_END
00049
00050 <span class="keyword">extern</span> <span class="keyword">struct </span>ip_addr ip_addr_broadcast;
00051
00052 <span class="preprocessor">#define IP4_ADDR(ipaddr, a,b,c,d) (ipaddr)->addr = htonl(((uInt32)(a & 0xff) << 24) | ((uInt32)(b & 0xff) << 16) | \</span>
00053 <span class="preprocessor"> ((uInt32)(c & 0xff) << 8) | (uInt32)(d & 0xff))</span>
00054 <span class="preprocessor"></span>
00055 <span class="preprocessor">#define ip_addr_set(dest, src) (dest)->addr = \</span>
00056 <span class="preprocessor"> ((src) == IP_ADDR_ANY? IP_ADDR_ANY:\</span>
00057 <span class="preprocessor"> ((struct ip_addr *)src)->addr)</span>
00058 <span class="preprocessor"></span><span class="preprocessor">#define ip_addr_maskcmp(addr1, addr2, mask) (((addr1)->addr & \</span>
00059 <span class="preprocessor"> (mask)->addr) == \</span>
00060 <span class="preprocessor"> ((addr2)->addr & \</span>
00061 <span class="preprocessor"> (mask)->addr))</span>
00062 <span class="preprocessor"></span><span class="preprocessor">#define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)</span>
00063 <span class="preprocessor"></span>
00064 <span class="preprocessor">#define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == 0)</span>
00065 <span class="preprocessor"></span>
00066 <span class="preprocessor">#define ip_addr_isbroadcast(addr1, mask) (((((addr1)->addr) & ~((mask)->addr)) == \</span>
00067 <span class="preprocessor"> (0xffffffff & ~((mask)->addr))) || \</span>
00068 <span class="preprocessor"> ((addr1)->addr == 0xffffffff) || \</span>
00069 <span class="preprocessor"> ((addr1)->addr == 0x00000000))</span>
00070 <span class="preprocessor"></span>
00071
00072 <span class="preprocessor">#define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000)) == ntohl(0xe0000000))</span>
00073 <span class="preprocessor"></span>
00074
00075 <span class="preprocessor">#define ip_addr_debug_print(ipaddr) kprintf("%d.%d.%d.%d", \</span>
00076 <span class="preprocessor"> (uInt8)(ntohl((ipaddr)->addr) >> 24) & 0xff, \</span>
00077 <span class="preprocessor"> (uInt8)(ntohl((ipaddr)->addr) >> 16) & 0xff, \</span>
00078 <span class="preprocessor"> (uInt8)(ntohl((ipaddr)->addr) >> 8) & 0xff, \</span>
00079 <span class="preprocessor"> (uInt8)ntohl((ipaddr)->addr) & 0xff)</span>
00080 <span class="preprocessor"></span>
00081
00082 <span class="preprocessor">#define ip4_addr1(ipaddr) ((uInt8)(ntohl((ipaddr)->addr) >> 24) & 0xff)</span>
00083 <span class="preprocessor"></span><span class="preprocessor">#define ip4_addr2(ipaddr) ((uInt8)(ntohl((ipaddr)->addr) >> 16) & 0xff)</span>
00084 <span class="preprocessor"></span><span class="preprocessor">#define ip4_addr3(ipaddr) ((uInt8)(ntohl((ipaddr)->addr) >> 8) & 0xff)</span>
00085 <span class="preprocessor"></span><span class="preprocessor">#define ip4_addr4(ipaddr) ((uInt8)(ntohl((ipaddr)->addr)) & 0xff)</span>
00086 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* __LWIP_IP_ADDR_H__ */</span>
00087
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00090
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