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      1 /*
      2  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without modification,
      6  * are permitted provided that the following conditions are met:
      7  *
      8  * 1. Redistributions of source code must retain the above copyright notice,
      9  *    this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright notice,
     11  *    this list of conditions and the following disclaimer in the documentation
     12  *    and/or other materials provided with the distribution.
     13  * 3. The name of the author may not be used to endorse or promote products
     14  *    derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
     19  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
     21  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
     24  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
     25  * OF SUCH DAMAGE.
     26  *
     27  * This file is part of the lwIP TCP/IP stack.
     28  *
     29  * Author: Adam Dunkels <adam (at) sics.se>
     30  *
     31  */
     32 #ifndef __LWIP_INET_H__
     33 #define __LWIP_INET_H__
     34 
     35 #include "lwip/opt.h"
     36 #include "lwip/def.h"
     37 #include "lwip/ip_addr.h"
     38 
     39 #ifdef __cplusplus
     40 extern "C" {
     41 #endif
     42 
     43 /** For compatibility with BSD code */
     44 #include <netinet/in.h>
     45 
     46 /** 255.255.255.255 */
     47 #define INADDR_NONE         IPADDR_NONE
     48 /** 127.0.0.1 */
     49 #define INADDR_LOOPBACK     IPADDR_LOOPBACK
     50 /** 0.0.0.0 */
     51 #define INADDR_ANY          IPADDR_ANY
     52 /** 255.255.255.255 */
     53 #define INADDR_BROADCAST    IPADDR_BROADCAST
     54 
     55 /* Definitions of the bits in an Internet address integer.
     56 
     57    On subnets, host and network parts are found according to
     58    the subnet mask, not these masks.  */
     59 #define IN_CLASSA(a)        IP_CLASSA(a)
     60 #define IN_CLASSA_NET       IP_CLASSA_NET
     61 #define IN_CLASSA_NSHIFT    IP_CLASSA_NSHIFT
     62 #define IN_CLASSA_HOST      IP_CLASSA_HOST
     63 #define IN_CLASSA_MAX       IP_CLASSA_MAX
     64 
     65 #define IN_CLASSB(b)        IP_CLASSB(b)
     66 #define IN_CLASSB_NET       IP_CLASSB_NET
     67 #define IN_CLASSB_NSHIFT    IP_CLASSB_NSHIFT
     68 #define IN_CLASSB_HOST      IP_CLASSB_HOST
     69 #define IN_CLASSB_MAX       IP_CLASSB_MAX
     70 
     71 #define IN_CLASSC(c)        IP_CLASSC(c)
     72 #define IN_CLASSC_NET       IP_CLASSC_NET
     73 #define IN_CLASSC_NSHIFT    IP_CLASSC_NSHIFT
     74 #define IN_CLASSC_HOST      IP_CLASSC_HOST
     75 #define IN_CLASSC_MAX       IP_CLASSC_MAX
     76 
     77 #define IN_CLASSD(d)        IP_CLASSD(d)
     78 #define IN_CLASSD_NET       IP_CLASSD_NET     /* These ones aren't really */
     79 #define IN_CLASSD_NSHIFT    IP_CLASSD_NSHIFT  /*   net and host fields, but */
     80 #define IN_CLASSD_HOST      IP_CLASSD_HOST    /*   routing needn't know. */
     81 #define IN_CLASSD_MAX       IP_CLASSD_MAX
     82 
     83 #define IN_MULTICAST(a)     IP_MULTICAST(a)
     84 
     85 #define IN_EXPERIMENTAL(a)  IP_EXPERIMENTAL(a)
     86 #define IN_BADCLASS(a)      IP_BADCLASS(a)
     87 
     88 #define IN_LOOPBACKNET      IP_LOOPBACKNET
     89 
     90 #define inet_addr_from_ipaddr(target_inaddr, source_ipaddr) ((target_inaddr)->s_addr = ip4_addr_get_u32(source_ipaddr))
     91 #define inet_addr_to_ipaddr(target_ipaddr, source_inaddr)   (ip4_addr_set_u32(target_ipaddr, (source_inaddr)->s_addr))
     92 /* ATTENTION: the next define only works because both s_addr and ip_addr_t are an u32_t effectively! */
     93 #define inet_addr_to_ipaddr_p(target_ipaddr_p, source_inaddr)   ((target_ipaddr_p) = (ip_addr_t*)&((source_inaddr)->s_addr))
     94 
     95 /* directly map this to the lwip internal functions */
     96 #define inet_addr(cp)         ipaddr_addr(cp)
     97 #define inet_aton(cp, addr)   ipaddr_aton(cp, (ip_addr_t*)addr)
     98 #define inet_ntoa(addr)       ipaddr_ntoa((ip_addr_t*)&(addr))
     99 #define inet_ntoa_r(addr, buf, buflen) ipaddr_ntoa_r((ip_addr_t*)&(addr), buf, buflen)
    100 
    101 #ifdef __cplusplus
    102 }
    103 #endif
    104 
    105 #endif /* __LWIP_INET_H__ */
    106