www.pudn.com > TCPmodbushy.rar > inet.h

/* 
 * 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  
 * 
 */ 
#ifndef __LWIP_INET_H__ 
#define __LWIP_INET_H__ 
 
#include "o:/lwip/arch.h" 
 
#include "o:/lwip/opt.h" 
#include "o:/lwip/pbuf.h" 
#include "o:/IPV4/lwip/ip_addr.h" 
 
u16_t inet_chksum(void xdata *dataptr, u16_t len); 
#if 0 /* optimized routine */ 
u16_t inet_chksum4(u8_t xdata xdata *dataptr, u16_t len); 
#endif 
u16_t inet_chksum_pbuf(struct pbuf xdata *p); 
u16_t inet_chksum_pseudo(struct pbuf xdata *p, 
       struct ip_addr xdata *src, struct ip_addr xdata *dest, 
       u8_t proto, u16_t proto_len); 
 
#ifdef htons 
#undef htons 
#endif /* htons */ 
#ifdef htonl 
#undef htonl 
#endif /* htonl */ 
#ifdef ntohs 
#undef ntohs 
#endif /* ntohs */ 
#ifdef ntohl 
#undef ntohl 
#endif /* ntohl */ 
 
#if BYTE_ORDER == BIG_ENDIAN 
#define htons(x) (x) 
#define ntohs(x) (x) 
#define htonl(x) (x) 
#define ntohl(x) (x) 
#else 
#ifdef LWIP_PREFIX_BYTEORDER_FUNCS 
/* workaround for naming collisions on some platforms */ 
#define htons lwip_htons 
#define ntohs lwip_ntohs 
#define htonl lwip_htonl 
#define ntohl lwip_ntohl 
#endif 
u16_t htons(u16_t x); 
u16_t ntohs(u16_t x); 
u32_t htonl(u32_t x); 
u32_t ntohl(u32_t x); 
#endif 
 
#endif /* __LWIP_INET_H__ */