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 #include "lwip/def.h"
00037 #include "lwip/ip_addr.h"
00038 
00039 #ifdef __cplusplus
00040 extern "C" {
00041 #endif
00042 
00043 /** For compatibility with BSD code */
00044 struct in_addr {
00045   u32_t s_addr;
00046 };
00047 
00048 /** 255.255.255.255 */
00049 #define INADDR_NONE         IPADDR_NONE
00050 /** 127.0.0.1 */
00051 #define INADDR_LOOPBACK     IPADDR_LOOPBACK
00052 /** 0.0.0.0 */
00053 #define INADDR_ANY          IPADDR_ANY
00054 /** 255.255.255.255 */
00055 #define INADDR_BROADCAST    IPADDR_BROADCAST
00056 
00057 /* Definitions of the bits in an Internet address integer.
00058 
00059    On subnets, host and network parts are found according to
00060    the subnet mask, not these masks.  */
00061 #define IN_CLASSA(a)        IP_CLASSA(a)
00062 #define IN_CLASSA_NET       IP_CLASSA_NET
00063 #define IN_CLASSA_NSHIFT    IP_CLASSA_NSHIFT
00064 #define IN_CLASSA_HOST      IP_CLASSA_HOST
00065 #define IN_CLASSA_MAX       IP_CLASSA_MAX
00066 
00067 #define IN_CLASSB(b)        IP_CLASSB(b)
00068 #define IN_CLASSB_NET       IP_CLASSB_NET
00069 #define IN_CLASSB_NSHIFT    IP_CLASSB_NSHIFT
00070 #define IN_CLASSB_HOST      IP_CLASSB_HOST
00071 #define IN_CLASSB_MAX       IP_CLASSB_MAX
00072 
00073 #define IN_CLASSC(c)        IP_CLASSC(c)
00074 #define IN_CLASSC_NET       IP_CLASSC_NET
00075 #define IN_CLASSC_NSHIFT    IP_CLASSC_NSHIFT
00076 #define IN_CLASSC_HOST      IP_CLASSC_HOST
00077 #define IN_CLASSC_MAX       IP_CLASSC_MAX
00078 
00079 #define IN_CLASSD(d)        IP_CLASSD(d)
00080 #define IN_CLASSD_NET       IP_CLASSD_NET     /* These ones aren't really */
00081 #define IN_CLASSD_NSHIFT    IP_CLASSD_NSHIFT  /*   net and host fields, but */
00082 #define IN_CLASSD_HOST      IP_CLASSD_HOST    /*   routing needn't know. */
00083 #define IN_CLASSD_MAX       IP_CLASSD_MAX
00084 
00085 #define IN_MULTICAST(a)     IP_MULTICAST(a)
00086 
00087 #define IN_EXPERIMENTAL(a)  IP_EXPERIMENTAL(a)
00088 #define IN_BADCLASS(a)      IP_BADCLASS(a)
00089 
00090 #define IN_LOOPBACKNET      IP_LOOPBACKNET
00091 
00092 #define inet_addr_from_ipaddr(target_inaddr, source_ipaddr) ((target_inaddr)->s_addr = ip4_addr_get_u32(source_ipaddr))
00093 #define inet_addr_to_ipaddr(target_ipaddr, source_inaddr)   (ip4_addr_set_u32(target_ipaddr, (source_inaddr)->s_addr))
00094 /* ATTENTION: the next define only works because both s_addr and ip_addr_t are an u32_t effectively! */
00095 #define inet_addr_to_ipaddr_p(target_ipaddr_p, source_inaddr)   ((target_ipaddr_p) = (ip_addr_t*)&((source_inaddr)->s_addr))
00096 
00097 /* directly map this to the lwip internal functions */
00098 #define inet_addr(cp)         ipaddr_addr(cp)
00099 #define inet_aton(cp, addr)   ipaddr_aton(cp, (ip_addr_t*)addr)
00100 #define inet_ntoa(addr)       ipaddr_ntoa((ip_addr_t*)&(addr))
00101 #define inet_ntoa_r(addr, buf, buflen) ipaddr_ntoa_r((ip_addr_t*)&(addr), buf, buflen)
00102 
00103 #ifdef __cplusplus
00104 }
00105 #endif
00106 
00107 #endif /* __LWIP_INET_H__ */