minix/lib/liblwip/dist/src/include/lwip/inet.h

   1 /**
   2  * @file
   3  * This file (together with sockets.h) aims to provide structs and functions from
   4  * - arpa/inet.h
   5  * - netinet/in.h
   6  *
   7  */
   8
   9 /*
  10  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
  11  * All rights reserved.
  12  *
  13  * Redistribution and use in source and binary forms, with or without modification,
  14  * are permitted provided that the following conditions are met:
  15  *
  16  * 1. Redistributions of source code must retain the above copyright notice,
  17  *    this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright notice,
  19  *    this list of conditions and the following disclaimer in the documentation
  20  *    and/or other materials provided with the distribution.
  21  * 3. The name of the author may not be used to endorse or promote products
  22  *    derived from this software without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  25  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  26  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
  27  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  28  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
  29  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  32  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  33  * OF SUCH DAMAGE.
  34  *
  35  * This file is part of the lwIP TCP/IP stack.
  36  *
  37  * Author: Adam Dunkels <adam@sics.se>
  38  *
  39  */
  40 #ifndef LWIP_HDR_INET_H
  41 #define LWIP_HDR_INET_H
  42
  43 #include "lwip/opt.h"
  44 #include "lwip/def.h"
  45 #include "lwip/ip_addr.h"
  46 #include "lwip/ip6_addr.h"
  47
  48 #ifdef __cplusplus
  49 extern "C" {
  50 #endif
  51
  52 /* If your port already typedef's in_addr_t, define IN_ADDR_T_DEFINED
  53    to prevent this code from redefining it. */
  54 #if !defined(in_addr_t) && !defined(IN_ADDR_T_DEFINED)
  55 typedef u32_t in_addr_t;
  56 #endif
  57
  58 struct in_addr {
  59   in_addr_t s_addr;
  60 };
  61
  62 struct in6_addr {
  63   union {
  64     u32_t u32_addr[4];
  65     u8_t  u8_addr[16];
  66   } un;
  67 #define s6_addr  un.u8_addr
  68 };
  69
  70 /** 255.255.255.255 */
  71 #define INADDR_NONE         IPADDR_NONE
  72 /** 127.0.0.1 */
  73 #define INADDR_LOOPBACK     IPADDR_LOOPBACK
  74 /** 0.0.0.0 */
  75 #define INADDR_ANY          IPADDR_ANY
  76 /** 255.255.255.255 */
  77 #define INADDR_BROADCAST    IPADDR_BROADCAST
  78
  79 /** This macro can be used to initialize a variable of type struct in6_addr
  80     to the IPv6 wildcard address. */
  81 #define IN6ADDR_ANY_INIT {{{0,0,0,0}}}
  82 /** This macro can be used to initialize a variable of type struct in6_addr
  83     to the IPv6 loopback address. */
  84 #define IN6ADDR_LOOPBACK_INIT {{{0,0,0,PP_HTONL(1)}}}
  85 /** This variable is initialized by the system to contain the wildcard IPv6 address. */
  86 extern const struct in6_addr in6addr_any;
  87
  88 /* Definitions of the bits in an (IPv4) Internet address integer.
  89
  90    On subnets, host and network parts are found according to
  91    the subnet mask, not these masks.  */
  92 #define IN_CLASSA(a)        IP_CLASSA(a)
  93 #define IN_CLASSA_NET       IP_CLASSA_NET
  94 #define IN_CLASSA_NSHIFT    IP_CLASSA_NSHIFT
  95 #define IN_CLASSA_HOST      IP_CLASSA_HOST
  96 #define IN_CLASSA_MAX       IP_CLASSA_MAX
  97
  98 #define IN_CLASSB(b)        IP_CLASSB(b)
  99 #define IN_CLASSB_NET       IP_CLASSB_NET
 100 #define IN_CLASSB_NSHIFT    IP_CLASSB_NSHIFT
 101 #define IN_CLASSB_HOST      IP_CLASSB_HOST
 102 #define IN_CLASSB_MAX       IP_CLASSB_MAX
 103
 104 #define IN_CLASSC(c)        IP_CLASSC(c)
 105 #define IN_CLASSC_NET       IP_CLASSC_NET
 106 #define IN_CLASSC_NSHIFT    IP_CLASSC_NSHIFT
 107 #define IN_CLASSC_HOST      IP_CLASSC_HOST
 108 #define IN_CLASSC_MAX       IP_CLASSC_MAX
 109
 110 #define IN_CLASSD(d)        IP_CLASSD(d)
 111 #define IN_CLASSD_NET       IP_CLASSD_NET     /* These ones aren't really */
 112 #define IN_CLASSD_NSHIFT    IP_CLASSD_NSHIFT  /*   net and host fields, but */
 113 #define IN_CLASSD_HOST      IP_CLASSD_HOST    /*   routing needn't know. */
 114 #define IN_CLASSD_MAX       IP_CLASSD_MAX
 115
 116 #define IN_MULTICAST(a)     IP_MULTICAST(a)
 117
 118 #define IN_EXPERIMENTAL(a)  IP_EXPERIMENTAL(a)
 119 #define IN_BADCLASS(a)      IP_BADCLASS(a)
 120
 121 #define IN_LOOPBACKNET      IP_LOOPBACKNET
 122
 123
 124 #ifndef INET_ADDRSTRLEN
 125 #define INET_ADDRSTRLEN     IP4ADDR_STRLEN_MAX
 126 #endif
 127 #if LWIP_IPV6
 128 #ifndef INET6_ADDRSTRLEN
 129 #define INET6_ADDRSTRLEN    IP6ADDR_STRLEN_MAX
 130 #endif
 131 #endif
 132
 133 #if LWIP_IPV4
 134
 135 #define inet_addr_from_ip4addr(target_inaddr, source_ipaddr) ((target_inaddr)->s_addr = ip4_addr_get_u32(source_ipaddr))
 136 #define inet_addr_to_ip4addr(target_ipaddr, source_inaddr)   (ip4_addr_set_u32(target_ipaddr, (source_inaddr)->s_addr))
 137
 138 /* directly map this to the lwip internal functions */
 139 #define inet_addr(cp)                   ipaddr_addr(cp)
 140 #define inet_aton(cp, addr)             ip4addr_aton(cp, (ip4_addr_t*)addr)
 141 #define inet_ntoa(addr)                 ip4addr_ntoa((const ip4_addr_t*)&(addr))
 142 #define inet_ntoa_r(addr, buf, buflen)  ip4addr_ntoa_r((const ip4_addr_t*)&(addr), buf, buflen)
 143
 144 #endif /* LWIP_IPV4 */
 145
 146 #if LWIP_IPV6
 147 #define inet6_addr_from_ip6addr(target_in6addr, source_ip6addr) {(target_in6addr)->un.u32_addr[0] = (source_ip6addr)->addr[0]; \
 148                                                                  (target_in6addr)->un.u32_addr[1] = (source_ip6addr)->addr[1]; \
 149                                                                  (target_in6addr)->un.u32_addr[2] = (source_ip6addr)->addr[2]; \
 150                                                                  (target_in6addr)->un.u32_addr[3] = (source_ip6addr)->addr[3];}
 151 #define inet6_addr_to_ip6addr(target_ip6addr, source_in6addr)   {(target_ip6addr)->addr[0] = (source_in6addr)->un.u32_addr[0]; \
 152                                                                  (target_ip6addr)->addr[1] = (source_in6addr)->un.u32_addr[1]; \
 153                                                                  (target_ip6addr)->addr[2] = (source_in6addr)->un.u32_addr[2]; \
 154                                                                  (target_ip6addr)->addr[3] = (source_in6addr)->un.u32_addr[3]; \
 155                                                                  ip6_addr_clear_zone(target_ip6addr);}
 156
 157 /* directly map this to the lwip internal functions */
 158 #define inet6_aton(cp, addr)            ip6addr_aton(cp, (ip6_addr_t*)addr)
 159 #define inet6_ntoa(addr)                ip6addr_ntoa((const ip6_addr_t*)&(addr))
 160 #define inet6_ntoa_r(addr, buf, buflen) ip6addr_ntoa_r((const ip6_addr_t*)&(addr), buf, buflen)
 161
 162 #endif /* LWIP_IPV6 */
 163
 164
 165 #ifdef __cplusplus
 166 }
 167 #endif
 168
 169 #endif /* LWIP_HDR_INET_H */