src/include/lwip/inet.h - third_party/lwip - Git at Google

 /**
  * @file
  * This file (together with sockets.h) aims to provide structs and functions from
  * - arpa/inet.h
  * - netinet/in.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 <adam@sics.se>
  *
  */
 #ifndef LWIP_HDR_INET_H
 #define LWIP_HDR_INET_H

 #include "lwip/opt.h"
 #include "lwip/def.h"
 #include "lwip/ip_addr.h"
 #include "lwip/ip6_addr.h"

 #ifdef __cplusplus
 extern "C" {
 #endif

 /* If your port already typedef's in_addr_t, define IN_ADDR_T_DEFINED
    to prevent this code from redefining it. */
 #if !defined(in_addr_t) && !defined(IN_ADDR_T_DEFINED)
 typedef u32_t in_addr_t;
 #endif

 struct in_addr {
   in_addr_t s_addr;
 };

 struct in6_addr {
   union {
     u32_t u32_addr[4];
     u8_t  u8_addr[16];
   } un;
 #define s6_addr  un.u8_addr
 };

 /** 255.255.255.255 */
 #define INADDR_NONE         IPADDR_NONE
 /** 127.0.0.1 */
 #define INADDR_LOOPBACK     IPADDR_LOOPBACK
 /** 0.0.0.0 */
 #define INADDR_ANY          IPADDR_ANY
 /** 255.255.255.255 */
 #define INADDR_BROADCAST    IPADDR_BROADCAST

 /** This macro can be used to initialize a variable of type struct in6_addr
     to the IPv6 wildcard address. */
 #define IN6ADDR_ANY_INIT {{{0,0,0,0}}}
 /** This macro can be used to initialize a variable of type struct in6_addr
     to the IPv6 loopback address. */
 #define IN6ADDR_LOOPBACK_INIT {{{0,0,0,PP_HTONL(1)}}}
 /** This variable is initialized by the system to contain the wildcard IPv6 address. */
 extern const struct in6_addr in6addr_any;

 /* Definitions of the bits in an (IPv4) Internet address integer.

    On subnets, host and network parts are found according to
    the subnet mask, not these masks.  */
 #define IN_CLASSA(a)        IP_CLASSA(a)
 #define IN_CLASSA_NET       IP_CLASSA_NET
 #define IN_CLASSA_NSHIFT    IP_CLASSA_NSHIFT
 #define IN_CLASSA_HOST      IP_CLASSA_HOST
 #define IN_CLASSA_MAX       IP_CLASSA_MAX

 #define IN_CLASSB(b)        IP_CLASSB(b)
 #define IN_CLASSB_NET       IP_CLASSB_NET
 #define IN_CLASSB_NSHIFT    IP_CLASSB_NSHIFT
 #define IN_CLASSB_HOST      IP_CLASSB_HOST
 #define IN_CLASSB_MAX       IP_CLASSB_MAX

 #define IN_CLASSC(c)        IP_CLASSC(c)
 #define IN_CLASSC_NET       IP_CLASSC_NET
 #define IN_CLASSC_NSHIFT    IP_CLASSC_NSHIFT
 #define IN_CLASSC_HOST      IP_CLASSC_HOST
 #define IN_CLASSC_MAX       IP_CLASSC_MAX

 #define IN_CLASSD(d)        IP_CLASSD(d)
 #define IN_CLASSD_NET       IP_CLASSD_NET     /* These ones aren't really */
 #define IN_CLASSD_NSHIFT    IP_CLASSD_NSHIFT  /*   net and host fields, but */
 #define IN_CLASSD_HOST      IP_CLASSD_HOST    /*   routing needn't know. */
 #define IN_CLASSD_MAX       IP_CLASSD_MAX

 #define IN_MULTICAST(a)     IP_MULTICAST(a)

 #define IN_EXPERIMENTAL(a)  IP_EXPERIMENTAL(a)
 #define IN_BADCLASS(a)      IP_BADCLASS(a)

 #define IN_LOOPBACKNET      IP_LOOPBACKNET


 #ifndef INET_ADDRSTRLEN
 #define INET_ADDRSTRLEN     IP4ADDR_STRLEN_MAX
 #endif
 #if LWIP_IPV6
 #ifndef INET6_ADDRSTRLEN
 #define INET6_ADDRSTRLEN    IP6ADDR_STRLEN_MAX
 #endif
 #endif

 #if LWIP_IPV4

 #define inet_addr_from_ip4addr(target_inaddr, source_ipaddr) ((target_inaddr)->s_addr = ip4_addr_get_u32(source_ipaddr))
 #define inet_addr_to_ip4addr(target_ipaddr, source_inaddr)   (ip4_addr_set_u32(target_ipaddr, (source_inaddr)->s_addr))
 /* ATTENTION: the next define only works because both s_addr and ip4_addr_t are an u32_t effectively! */
 #define inet_addr_to_ip4addr_p(target_ip4addr_p, source_inaddr)   ((target_ip4addr_p) = (ip4_addr_t*)&((source_inaddr)->s_addr))

 /* directly map this to the lwip internal functions */
 #define inet_addr(cp)                   ipaddr_addr(cp)
 #define inet_aton(cp, addr)             ip4addr_aton(cp, (ip4_addr_t*)addr)
 #define inet_ntoa(addr)                 ip4addr_ntoa((const ip4_addr_t*)&(addr))
 #define inet_ntoa_r(addr, buf, buflen)  ip4addr_ntoa_r((const ip4_addr_t*)&(addr), buf, buflen)

 #endif /* LWIP_IPV4 */

 #if LWIP_IPV6
 #define inet6_addr_from_ip6addr(target_in6addr, source_ip6addr) {(target_in6addr)->un.u32_addr[0] = (source_ip6addr)->addr[0]; \
                                                                  (target_in6addr)->un.u32_addr[1] = (source_ip6addr)->addr[1]; \
                                                                  (target_in6addr)->un.u32_addr[2] = (source_ip6addr)->addr[2]; \
                                                                  (target_in6addr)->un.u32_addr[3] = (source_ip6addr)->addr[3];}
 #define inet6_addr_to_ip6addr(target_ip6addr, source_in6addr)   {(target_ip6addr)->addr[0] = (source_in6addr)->un.u32_addr[0]; \
                                                                  (target_ip6addr)->addr[1] = (source_in6addr)->un.u32_addr[1]; \
                                                                  (target_ip6addr)->addr[2] = (source_in6addr)->un.u32_addr[2]; \
                                                                  (target_ip6addr)->addr[3] = (source_in6addr)->un.u32_addr[3];}
 /* ATTENTION: the next define only works because both in6_addr and ip6_addr_t are an u32_t[4] effectively! */
 #define inet6_addr_to_ip6addr_p(target_ip6addr_p, source_in6addr)   ((target_ip6addr_p) = (ip6_addr_t*)(source_in6addr))

 /* directly map this to the lwip internal functions */
 #define inet6_aton(cp, addr)            ip6addr_aton(cp, (ip6_addr_t*)addr)
 #define inet6_ntoa(addr)                ip6addr_ntoa((const ip6_addr_t*)&(addr))
 #define inet6_ntoa_r(addr, buf, buflen) ip6addr_ntoa_r((const ip6_addr_t*)&(addr), buf, buflen)

 #endif /* LWIP_IPV6 */


 #ifdef __cplusplus
 }
 #endif

 #endif /* LWIP_HDR_INET_H */
	/**
	* @file
	* This file (together with sockets.h) aims to provide structs and functions from
	* - arpa/inet.h
	* - netinet/in.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 <adam@sics.se>
	*
	*/
	#ifndef LWIP_HDR_INET_H
	#define LWIP_HDR_INET_H

	#include "lwip/opt.h"
	#include "lwip/def.h"
	#include "lwip/ip_addr.h"
	#include "lwip/ip6_addr.h"

	#ifdef __cplusplus
	extern "C" {
	#endif

	/* If your port already typedef's in_addr_t, define IN_ADDR_T_DEFINED
	to prevent this code from redefining it. */
	#if !defined(in_addr_t) && !defined(IN_ADDR_T_DEFINED)
	typedef u32_t in_addr_t;
	#endif

	struct in_addr {
	in_addr_t s_addr;
	};

	struct in6_addr {
	union {
	u32_t u32_addr[4];
	u8_t u8_addr[16];
	} un;
	#define s6_addr un.u8_addr
	};

	/** 255.255.255.255 */
	#define INADDR_NONE IPADDR_NONE
	/** 127.0.0.1 */
	#define INADDR_LOOPBACK IPADDR_LOOPBACK
	/** 0.0.0.0 */
	#define INADDR_ANY IPADDR_ANY
	/** 255.255.255.255 */
	#define INADDR_BROADCAST IPADDR_BROADCAST

	/** This macro can be used to initialize a variable of type struct in6_addr
	to the IPv6 wildcard address. */
	#define IN6ADDR_ANY_INIT {{{0,0,0,0}}}
	/** This macro can be used to initialize a variable of type struct in6_addr
	to the IPv6 loopback address. */
	#define IN6ADDR_LOOPBACK_INIT {{{0,0,0,PP_HTONL(1)}}}
	/** This variable is initialized by the system to contain the wildcard IPv6 address. */
	extern const struct in6_addr in6addr_any;

	/* Definitions of the bits in an (IPv4) Internet address integer.

	On subnets, host and network parts are found according to
	the subnet mask, not these masks. */
	#define IN_CLASSA(a) IP_CLASSA(a)
	#define IN_CLASSA_NET IP_CLASSA_NET
	#define IN_CLASSA_NSHIFT IP_CLASSA_NSHIFT
	#define IN_CLASSA_HOST IP_CLASSA_HOST
	#define IN_CLASSA_MAX IP_CLASSA_MAX

	#define IN_CLASSB(b) IP_CLASSB(b)
	#define IN_CLASSB_NET IP_CLASSB_NET
	#define IN_CLASSB_NSHIFT IP_CLASSB_NSHIFT
	#define IN_CLASSB_HOST IP_CLASSB_HOST
	#define IN_CLASSB_MAX IP_CLASSB_MAX

	#define IN_CLASSC(c) IP_CLASSC(c)
	#define IN_CLASSC_NET IP_CLASSC_NET
	#define IN_CLASSC_NSHIFT IP_CLASSC_NSHIFT
	#define IN_CLASSC_HOST IP_CLASSC_HOST
	#define IN_CLASSC_MAX IP_CLASSC_MAX

	#define IN_CLASSD(d) IP_CLASSD(d)
	#define IN_CLASSD_NET IP_CLASSD_NET /* These ones aren't really */
	#define IN_CLASSD_NSHIFT IP_CLASSD_NSHIFT /* net and host fields, but */
	#define IN_CLASSD_HOST IP_CLASSD_HOST /* routing needn't know. */
	#define IN_CLASSD_MAX IP_CLASSD_MAX

	#define IN_MULTICAST(a) IP_MULTICAST(a)

	#define IN_EXPERIMENTAL(a) IP_EXPERIMENTAL(a)
	#define IN_BADCLASS(a) IP_BADCLASS(a)

	#define IN_LOOPBACKNET IP_LOOPBACKNET


	#ifndef INET_ADDRSTRLEN
	#define INET_ADDRSTRLEN IP4ADDR_STRLEN_MAX
	#endif
	#if LWIP_IPV6
	#ifndef INET6_ADDRSTRLEN
	#define INET6_ADDRSTRLEN IP6ADDR_STRLEN_MAX
	#endif
	#endif

	#if LWIP_IPV4

	#define inet_addr_from_ip4addr(target_inaddr, source_ipaddr) ((target_inaddr)->s_addr = ip4_addr_get_u32(source_ipaddr))
	#define inet_addr_to_ip4addr(target_ipaddr, source_inaddr) (ip4_addr_set_u32(target_ipaddr, (source_inaddr)->s_addr))
	/* ATTENTION: the next define only works because both s_addr and ip4_addr_t are an u32_t effectively! */
	#define inet_addr_to_ip4addr_p(target_ip4addr_p, source_inaddr) ((target_ip4addr_p) = (ip4_addr_t*)&((source_inaddr)->s_addr))

	/* directly map this to the lwip internal functions */
	#define inet_addr(cp) ipaddr_addr(cp)
	#define inet_aton(cp, addr) ip4addr_aton(cp, (ip4_addr_t*)addr)
	#define inet_ntoa(addr) ip4addr_ntoa((const ip4_addr_t*)&(addr))
	#define inet_ntoa_r(addr, buf, buflen) ip4addr_ntoa_r((const ip4_addr_t*)&(addr), buf, buflen)

	#endif /* LWIP_IPV4 */

	#if LWIP_IPV6
	#define inet6_addr_from_ip6addr(target_in6addr, source_ip6addr) {(target_in6addr)->un.u32_addr[0] = (source_ip6addr)->addr[0]; \
	(target_in6addr)->un.u32_addr[1] = (source_ip6addr)->addr[1]; \
	(target_in6addr)->un.u32_addr[2] = (source_ip6addr)->addr[2]; \
	(target_in6addr)->un.u32_addr[3] = (source_ip6addr)->addr[3];}
	#define inet6_addr_to_ip6addr(target_ip6addr, source_in6addr) {(target_ip6addr)->addr[0] = (source_in6addr)->un.u32_addr[0]; \
	(target_ip6addr)->addr[1] = (source_in6addr)->un.u32_addr[1]; \
	(target_ip6addr)->addr[2] = (source_in6addr)->un.u32_addr[2]; \
	(target_ip6addr)->addr[3] = (source_in6addr)->un.u32_addr[3];}
	/* ATTENTION: the next define only works because both in6_addr and ip6_addr_t are an u32_t[4] effectively! */
	#define inet6_addr_to_ip6addr_p(target_ip6addr_p, source_in6addr) ((target_ip6addr_p) = (ip6_addr_t*)(source_in6addr))

	/* directly map this to the lwip internal functions */
	#define inet6_aton(cp, addr) ip6addr_aton(cp, (ip6_addr_t*)addr)
	#define inet6_ntoa(addr) ip6addr_ntoa((const ip6_addr_t*)&(addr))
	#define inet6_ntoa_r(addr, buf, buflen) ip6addr_ntoa_r((const ip6_addr_t*)&(addr), buf, buflen)

	#endif /* LWIP_IPV6 */


	#ifdef __cplusplus
	}
	#endif

	#endif /* LWIP_HDR_INET_H */