inet.h

00001 /*
00002  * Copyright (c) 2001-2004 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  */
00032 #ifndef __LWIP_INET_H__
00033 #define __LWIP_INET_H__
00034 
00035 #include "lwip/opt.h"
00036 
00037 #ifdef __cplusplus
00038 extern "C" {
00039 #endif
00040 
00041 /* For compatibility with BSD code */
00042 struct in_addr {
00043   u32_t s_addr;
00044 };
00045 
00046 #define INADDR_NONE         ((u32_t)0xffffffffUL)  /* 255.255.255.255 */
00047 #define INADDR_LOOPBACK     ((u32_t)0x7f000001UL)  /* 127.0.0.1 */
00048 #define INADDR_ANY          ((u32_t)0x00000000UL)  /* 0.0.0.0 */
00049 #define INADDR_BROADCAST    ((u32_t)0xffffffffUL)  /* 255.255.255.255 */
00050 
00051 u32_t inet_addr(const char *cp);
00052 int inet_aton(const char *cp, struct in_addr *addr);
00053 char *inet_ntoa(struct in_addr addr); /* returns ptr to static buffer; not reentrant! */
00054 
00055 #ifdef htons
00056 #undef htons
00057 #endif /* htons */
00058 #ifdef htonl
00059 #undef htonl
00060 #endif /* htonl */
00061 #ifdef ntohs
00062 #undef ntohs
00063 #endif /* ntohs */
00064 #ifdef ntohl
00065 #undef ntohl
00066 #endif /* ntohl */
00067 
00068 #ifndef LWIP_PLATFORM_BYTESWAP
00069 #define LWIP_PLATFORM_BYTESWAP 0
00070 #endif
00071 
00072 #if BYTE_ORDER == BIG_ENDIAN
00073 #define htons(x) (x)
00074 #define ntohs(x) (x)
00075 #define htonl(x) (x)
00076 #define ntohl(x) (x)
00077 #else /* BYTE_ORDER != BIG_ENDIAN */
00078 #ifdef LWIP_PREFIX_BYTEORDER_FUNCS
00079 /* workaround for naming collisions on some platforms */
00080 #define htons lwip_htons
00081 #define ntohs lwip_ntohs
00082 #define htonl lwip_htonl
00083 #define ntohl lwip_ntohl
00084 #endif /* LWIP_PREFIX_BYTEORDER_FUNCS */
00085 #if LWIP_PLATFORM_BYTESWAP
00086 #define htons(x) LWIP_PLATFORM_HTONS(x)
00087 #define ntohs(x) LWIP_PLATFORM_HTONS(x)
00088 #define htonl(x) LWIP_PLATFORM_HTONL(x)
00089 #define ntohl(x) LWIP_PLATFORM_HTONL(x)
00090 #else /* LWIP_PLATFORM_BYTESWAP */
00091 u16_t htons(u16_t x);
00092 u16_t ntohs(u16_t x);
00093 u32_t htonl(u32_t x);
00094 u32_t ntohl(u32_t x);
00095 #endif /* LWIP_PLATFORM_BYTESWAP */
00096 
00097 #endif /* BYTE_ORDER == BIG_ENDIAN */
00098 
00099 #ifdef __cplusplus
00100 }
00101 #endif
00102 
00103 #endif /* __LWIP_INET_H__ */