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inet.h

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00001 /*
00002  * Copyright (c) 2001-2003 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  * CHANGELOG: this file has been modified by Sergio Perez Alcañiz <serpeal@disca.upv.es> 
00032  *            Departamento de Informática de Sistemas y Computadores          
00033  *            Universidad Politécnica de Valencia                             
00034  *            Valencia (Spain)    
00035  *            Date: April 2003                                          
00036  *
00037  */
00038 
00039 #ifndef __LWIP_INET_H__
00040 #define __LWIP_INET_H__
00041 
00042 #include "lwip/arch.h"
00043 
00044 #include "lwip/opt.h"
00045 #include "lwip/pbuf.h"
00046 #include "lwip/ip_addr.h"
00047 
00048 u16_t inet_chksum(void *dataptr, u16_t len);
00049 u16_t inet_chksum_pbuf(struct pbuf *p);
00050 u16_t inet_chksum_pseudo(struct pbuf *p,
00051                          struct ip_addr *src, struct ip_addr *dest,
00052                          u8_t proto, u16_t proto_len);
00053 
00054 u32_t inet_addr(const char *cp);
00055 int inet_aton(const char *cp, struct in_addr *addr);
00056 char *inet_ntoa(struct in_addr in);
00057 
00058 #ifdef HTONS
00059 #undef HTONS
00060 #endif /* HTONS */
00061 #ifdef NTOHS
00062 #undef NTOHS
00063 #endif /* NTOHS */
00064 #ifdef HTONL
00065 #undef HTONL
00066 #endif /* HTONL */
00067 #ifdef NTOHL
00068 #undef NTOHL
00069 #endif /* NTOHL */
00070 
00071 #ifndef HTONS
00072 #   if BYTE_ORDER == BIG_ENDIAN
00073 #      define HTONS(n) (n)
00074 #      define htons(n) HTONS(n)
00075 #   else /* BYTE_ORDER == BIG_ENDIAN */
00076 #      define HTONS(n) (((((u16_t)(n) & 0xff)) << 8) | (((u16_t)(n) & 0xff00) >> 8))
00077 #   endif /* BYTE_ORDER == BIG_ENDIAN */
00078 #endif /* HTONS */
00079 
00080 #ifdef NTOHS
00081 #undef NTOHS
00082 #endif /* NTOHS */
00083 
00084 #ifdef ntohs
00085 #undef ntohs
00086 #endif /* ntohs */
00087 
00088 #define NTOHS HTONS
00089 #define ntohs htons
00090 
00091 
00092 #ifndef HTONL
00093 #   if BYTE_ORDER == BIG_ENDIAN
00094 #      define HTONL(n) (n)
00095 #      define htonl(n) HTONL(n)
00096 #   else /* BYTE_ORDER == BIG_ENDIAN */
00097 #      define HTONL(n) (((((u32_t)(n) & 0xff)) << 24) | \
00098                         ((((u32_t)(n) & 0xff00)) << 8) | \
00099                         ((((u32_t)(n) & 0xff0000)) >> 8) | \
00100                         ((((u32_t)(n) & 0xff000000)) >> 24))
00101 #   endif /* BYTE_ORDER == BIG_ENDIAN */
00102 #endif /* HTONL */
00103 
00104 #ifdef ntohl
00105 #undef ntohl
00106 #endif /* ntohl */
00107 
00108 #ifdef NTOHL
00109 #undef NTOHL
00110 #endif /* NTOHL */
00111 
00112 #define NTOHL HTONL
00113 #define ntohl htonl
00114 
00115 #ifndef _MACHINE_ENDIAN_H_
00116 #ifndef _NETINET_IN_H
00117 #ifndef _LINUX_BYTEORDER_GENERIC_H
00118 
00119 #if BYTE_ORDER == LITTLE_ENDIAN
00120 #define htons HTONS
00121 #define htonl HTONL
00122 //uint16_t htons(u16_t n);
00123 //uint32_t htonl(u32_t n);
00124 //unsigned short int htons(u16_t n);
00125 //unsigned int htonl(u32_t n);
00126 //u16_t htons(u16_t n);
00127 //u32_t htonl(u32_t n);
00128 #else
00129 #endif /* BYTE_ORDER == LITTLE_ENDIAN */
00130 
00131 #endif /* _LINUX_BYTEORDER_GENERIC_H */
00132 #endif /* _NETINET_IN_H */
00133 #endif /* _MACHINE_ENDIAN_H_ */
00134 
00135 #endif /* __LWIP_INET_H__ */
00136 

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