author | William Roberts <williamr@symbian.org> |
Thu, 22 Jul 2010 16:48:56 +0100 | |
branch | GCC_SURGE |
changeset 45 | 4b03adbd26ca |
parent 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
0
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/* $KAME: inet_addr.c,v 1.5 2001/08/20 02:32:40 itojun Exp $ */ |
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/* |
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* ++Copyright++ 1983, 1990, 1993 |
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* - |
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* Copyright (c) 1983, 1990, 1993 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 4. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* - |
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* Portions Copyright (c) 1993 by Digital Equipment Corporation. |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies, and that |
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* the name of Digital Equipment Corporation not be used in advertising or |
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* publicity pertaining to distribution of the document or software without |
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* specific, written prior permission. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL |
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* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT |
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* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS |
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
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* SOFTWARE. |
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* - |
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* * Portions Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
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* --Copyright-- |
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*/ |
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|
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#if defined(LIBC_SCCS) && !defined(lint) |
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static char sccsid[] = "@(#)inet_addr.c 8.1 (Berkeley) 6/17/93"; |
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#endif /* LIBC_SCCS and not lint */ |
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#include <sys/cdefs.h> |
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#ifndef __SYMBIAN32__ |
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__FBSDID("$FreeBSD: src/lib/libc/net/inet_addr.c,v 1.16 2002/04/19 04:46:20 suz Exp $"); |
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#endif//__SYMBIAN32__ |
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#include <sys/param.h> |
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#include <stdapis/netinet/in.h> |
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#include <stdapis/arpa/inet.h> |
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|
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#include <ctype.h> |
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#include <errno.h> |
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#include <string.h> |
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#include <stdlib.h> |
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|
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/* |
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* ASCII internet address interpretation routine. |
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* The value returned is in network order. |
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*/ |
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EXPORT_C in_addr_t /* XXX should be struct in_addr :( */ |
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inet_addr(cp) |
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const char *cp; |
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{ |
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struct in_addr val; |
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|
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if (inet_aton(cp, &val)) |
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return (val.s_addr); |
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return (INADDR_NONE); |
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} |
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|
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/* |
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* Check whether "cp" is a valid ASCII representation |
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* of an Internet address and convert to a binary address. |
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* Returns 1 if the address is valid, 0 if not. |
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* This replaces inet_addr, the return value from which |
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* cannot distinguish between failure and a local broadcast address. |
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*/ |
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EXPORT_C int |
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inet_aton(cp, addr) |
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const char *cp; |
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struct in_addr *addr; |
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{ |
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u_long parts[4]; |
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in_addr_t val; |
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102 |
char *c; |
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103 |
char *endptr; |
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|
104 |
int gotend, n; |
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105 |
|
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106 |
c = (char *)cp; |
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107 |
n = 0; |
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108 |
/* |
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109 |
* Run through the string, grabbing numbers until |
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110 |
* the end of the string, or some error |
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111 |
*/ |
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112 |
gotend = 0; |
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113 |
while (!gotend) { |
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114 |
errno = 0; |
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115 |
val = strtoul(c, &endptr, 0); |
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116 |
|
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117 |
if (errno == ERANGE) /* Fail completely if it overflowed. */ |
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118 |
return (0); |
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119 |
|
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120 |
/* |
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121 |
* If the whole string is invalid, endptr will equal |
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122 |
* c.. this way we can make sure someone hasn't |
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123 |
* gone '.12' or something which would get past |
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124 |
* the next check. |
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125 |
*/ |
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126 |
if (endptr == c) |
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127 |
return (0); |
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128 |
parts[n] = val; |
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129 |
c = endptr; |
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130 |
|
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131 |
/* Check the next character past the previous number's end */ |
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132 |
switch (*c) { |
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133 |
case '.' : |
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134 |
/* Make sure we only do 3 dots .. */ |
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135 |
if (n == 3) /* Whoops. Quit. */ |
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136 |
return (0); |
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137 |
n++; |
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138 |
c++; |
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139 |
break; |
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140 |
|
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141 |
case '\0': |
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142 |
gotend = 1; |
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143 |
break; |
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144 |
|
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145 |
default: |
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146 |
if (isspace((unsigned char)*c)) { |
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147 |
gotend = 1; |
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148 |
break; |
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149 |
} else |
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150 |
return (0); /* Invalid character, so fail */ |
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151 |
} |
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152 |
|
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153 |
} |
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154 |
|
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155 |
/* |
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156 |
* Concoct the address according to |
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157 |
* the number of parts specified. |
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158 |
*/ |
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159 |
|
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160 |
switch (n) { |
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161 |
case 0: /* a -- 32 bits */ |
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162 |
/* |
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163 |
* Nothing is necessary here. Overflow checking was |
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164 |
* already done in strtoul(). |
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165 |
*/ |
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166 |
break; |
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|
167 |
case 1: /* a.b -- 8.24 bits */ |
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168 |
if (val > 0xffffff || parts[0] > 0xff) |
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169 |
return (0); |
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170 |
val |= parts[0] << 24; |
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171 |
break; |
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|
172 |
|
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173 |
case 2: /* a.b.c -- 8.8.16 bits */ |
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174 |
if (val > 0xffff || parts[0] > 0xff || parts[1] > 0xff) |
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175 |
return (0); |
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|
176 |
val |= (parts[0] << 24) | (parts[1] << 16); |
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177 |
break; |
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|
178 |
|
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179 |
case 3: /* a.b.c.d -- 8.8.8.8 bits */ |
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180 |
if (val > 0xff || parts[0] > 0xff || parts[1] > 0xff || |
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|
181 |
parts[2] > 0xff) |
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|
182 |
return (0); |
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|
183 |
val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8); |
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|
184 |
break; |
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|
185 |
} |
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|
186 |
|
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|
187 |
if (addr != NULL) |
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|
188 |
addr->s_addr = htonl(val); |
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|
189 |
return (1); |
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|
190 |
} |
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|
191 |
|
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|
192 |
/* |
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|
193 |
* Weak aliases for applications that use certain private entry points, |
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|
194 |
* and fail to include <arpa/inet.h>. |
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|
195 |
*/ |
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|
196 |
#ifndef __SYMBIAN32__ |
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|
197 |
#undef inet_addr |
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198 |
__weak_reference(__inet_addr, inet_addr); |
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|
199 |
#undef inet_aton |
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200 |
__weak_reference(__inet_aton, inet_aton); |
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|
201 |
#else |
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|
202 |
#define inet_addr __inet_addr |
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|
203 |
#define inet_aton __inet_aton |
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204 |
#endif//__SYMBIAN32__ |