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