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+<hr><h1>inet_address.cpp</h1><a href="inet__address_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
+00007 <font class="comment">/* Copyright, 2000 Nevrax Ltd.</font>
+00008 <font class="comment"> *</font>
+00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
+00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
+00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
+00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
+00013 <font class="comment"> * any later version.</font>
+00014 <font class="comment"></font>
+00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
+00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
+00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
+00018 <font class="comment"> * General Public License for more details.</font>
+00019 <font class="comment"></font>
+00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
+00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
+00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
+00023 <font class="comment"> * MA 02111-1307, USA.</font>
+00024 <font class="comment"> */</font>
+00025
+00026 <font class="preprocessor">#include "<a class="code" href="stdnet_8h.html">stdnet.h</a>"</font>
+00027
+00028 <font class="preprocessor">#include "<a class="code" href="common_8h.html">nel/misc/common.h</a>"</font>
+00029
+00030 <font class="preprocessor">#include "<a class="code" href="inet__address_8h.html">nel/net/inet_address.h</a>"</font>
+00031 <font class="preprocessor">#include "<a class="code" href="sock_8h.html">nel/net/sock.h</a>"</font>
+00032
+00033 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
+00034 <font class="preprocessor"></font>
+00035 <font class="preprocessor">#include &lt;winsock2.h&gt;</font>
+00036
+00037 <font class="preprocessor">#elif defined NL_OS_UNIX</font>
+00038 <font class="preprocessor"></font>
+00039 <font class="preprocessor">#include &lt;<a class="code" href="unistd_8h.html">unistd.h</a>&gt;</font>
+00040 <font class="preprocessor">#include &lt;sys/socket.h&gt;</font>
+00041 <font class="preprocessor">#include &lt;arpa/inet.h&gt;</font>
+00042 <font class="preprocessor">#include &lt;netinet/in.h&gt;</font>
+00043 <font class="preprocessor">#include &lt;netdb.h&gt;</font>
+00044
+00045 <font class="preprocessor">#define WSAGetLastError() 0</font>
+00046 <font class="preprocessor"></font><font class="preprocessor">#define SOCKET_ERROR -1</font>
+00047 <font class="preprocessor"></font>
+00048 <font class="preprocessor">#endif</font>
+00049 <font class="preprocessor"></font>
+00050
+00051 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
+00052 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
+00053
+00054
+00055 <font class="keyword">namespace </font>NLNET
+00056 {
+00057
+<a name="l00058"></a><a class="code" href="classNLNET_1_1CInetAddress.html#p0">00058</a> <font class="keywordtype">bool</font> CInetAddress::RetrieveNames = <font class="keyword">false</font>;
+00059
+00060
+00061 <font class="comment">/*</font>
+00062 <font class="comment"> * Constructor</font>
+00063 <font class="comment"> */</font>
+<a name="l00064"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a0">00064</a> CInetAddress::CInetAddress()
+00065 {
+00066 <a class="code" href="classNLNET_1_1CInetAddress.html#c0">init</a>();
+00067 <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_port = 0; <font class="comment">// same as htons(0)</font>
+00068 memset( &amp;<a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_addr, 0, <font class="keyword">sizeof</font>(in_addr) ); <font class="comment">// same as htonl(INADDR_ANY)</font>
+00069 }
+00070
+00071
+00072 <font class="comment">/*</font>
+00073 <font class="comment"> * Constructor with ip address, port=0</font>
+00074 <font class="comment"> */</font>
+<a name="l00075"></a><a class="code" href="classNLNET_1_1CInetAddress.html#b0">00075</a> CInetAddress::CInetAddress( <font class="keyword">const</font> in_addr *ip )
+00076 {
+00077 <a class="code" href="classNLNET_1_1CInetAddress.html#c0">init</a>();
+00078 <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_port = 0;
+00079 memcpy( &amp;<a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_addr, ip, <font class="keyword">sizeof</font>(in_addr) );
+00080
+00081 <font class="comment">// get the host name to be displayed</font>
+00082 hostent *phostent = gethostbyaddr( (<font class="keywordtype">char</font>*)&amp;ip-&gt;s_addr, 4, AF_INET );
+00083 <font class="keywordflow">if</font> ( phostent == NULL )
+00084 {
+00085 <a class="code" href="classNLNET_1_1CInetAddress.html#o0">_HostName</a> = <a class="code" href="classNLNET_1_1CInetAddress.html#a14">ipAddress</a>();
+00086 }
+00087 <font class="keywordflow">else</font>
+00088 {
+00089 <a class="code" href="classNLNET_1_1CInetAddress.html#o0">_HostName</a> = string( phostent-&gt;h_name );
+00090 }
+00091 <a class="code" href="classNLNET_1_1CInetAddress.html#o2">_Valid</a> = <font class="keyword">true</font>;
+00092 }
+00093
+00094
+00095 <font class="comment">/*</font>
+00096 <font class="comment"> * Alternate constructor (calls setByName())</font>
+00097 <font class="comment"> */</font>
+<a name="l00098"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a1">00098</a> CInetAddress::CInetAddress( <font class="keyword">const</font> std::string&amp; hostName, <a class="code" href="types__nl_8h.html#a8">uint16</a> port )
+00099 {
+00100 <a class="code" href="classNLNET_1_1CInetAddress.html#c0">init</a>();
+00101 <a class="code" href="classNLNET_1_1CInetAddress.html#a7">setPort</a>( <a class="code" href="classNLNET_1_1CInetAddress.html#a16">port</a> );
+00102 <a class="code" href="classNLNET_1_1CInetAddress.html#a6">setByName</a>( <a class="code" href="classNLNET_1_1CInetAddress.html#a15">hostName</a> );
+00103 }
+00104
+00105
+00106 <font class="comment">/*</font>
+00107 <font class="comment"> * Alternate constructor (calls setNameAndPort())</font>
+00108 <font class="comment"> */</font>
+<a name="l00109"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a2">00109</a> CInetAddress::CInetAddress( <font class="keyword">const</font> std::string&amp; hostNameAndPort )
+00110 {
+00111 <a class="code" href="classNLNET_1_1CInetAddress.html#c0">init</a>();
+00112 <a class="code" href="classNLNET_1_1CInetAddress.html#a8">setNameAndPort</a>( hostNameAndPort );
+00113 }
+00114
+00115
+00116 <font class="comment">/*</font>
+00117 <font class="comment"> * Copy constructor</font>
+00118 <font class="comment"> */</font>
+<a name="l00119"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a3">00119</a> CInetAddress::CInetAddress( <font class="keyword">const</font> CInetAddress&amp; other )
+00120 {
+00121 <a class="code" href="classNLNET_1_1CInetAddress.html#c0">init</a>();
+00122 <a class="code" href="classNLNET_1_1CInetAddress.html#o0">_HostName</a> = other._HostName;
+00123 memcpy( <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>, other._SockAddr, <font class="keyword">sizeof</font>( *<a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a> ) );
+00124 <a class="code" href="classNLNET_1_1CInetAddress.html#o2">_Valid</a> = other._Valid;
+00125 }
+00126
+00127
+00128 <font class="comment">/*</font>
+00129 <font class="comment"> * Assignment operator</font>
+00130 <font class="comment"> */</font>
+<a name="l00131"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a4">00131</a> CInetAddress&amp; CInetAddress::operator=( <font class="keyword">const</font> CInetAddress&amp; other )
+00132 {
+00133 <a class="code" href="classNLNET_1_1CInetAddress.html#o0">_HostName</a> = other._HostName;
+00134 memcpy( <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>, other._SockAddr, <font class="keyword">sizeof</font>( *<a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a> ) );
+00135 <a class="code" href="classNLNET_1_1CInetAddress.html#o2">_Valid</a> = other._Valid;
+00136 <font class="keywordflow">return</font> *<font class="keyword">this</font>;
+00137 }
+00138
+00139
+00140 <font class="comment">/*</font>
+00141 <font class="comment"> * Comparison == operator</font>
+00142 <font class="comment"> */</font>
+<a name="l00143"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a98">00143</a> <font class="keywordtype">bool</font> <a class="code" href="namespaceNLNET.html#a98">operator==</a>( <font class="keyword">const</font> CInetAddress&amp; a1, <font class="keyword">const</font> CInetAddress&amp; a2 )
+00144 {
+00145 <font class="comment">// Compares the sockaddr structure except the last 8 bytes equal to zero.</font>
+00146 <font class="keywordflow">return</font> ( memcmp( a1._SockAddr, a2._SockAddr, <font class="keyword">sizeof</font>(sockaddr_in)-8 ) == 0 );
+00147 }
+00148
+00149
+00150 <font class="comment">/*</font>
+00151 <font class="comment"> * Comparison &lt; operator</font>
+00152 <font class="comment"> */</font>
+<a name="l00153"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a99">00153</a> <font class="keywordtype">bool</font> <a class="code" href="namespaceNLNET.html#a99">operator&lt;</a>( <font class="keyword">const</font> CInetAddress&amp; a1, <font class="keyword">const</font> CInetAddress&amp; a2 )
+00154 {
+00155 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
+00156 <font class="preprocessor"></font> <font class="keywordflow">if</font> ( a1._SockAddr-&gt;sin_addr.S_un.S_addr == a2._SockAddr-&gt;sin_addr.S_un.S_addr )
+00157 {
+00158 <font class="keywordflow">return</font> ( a1.port() &lt; a2.port() );
+00159 }
+00160 <font class="keywordflow">else</font>
+00161 {
+00162 <font class="keywordflow">return</font> ( a1._SockAddr-&gt;sin_addr.S_un.S_addr &lt; a2._SockAddr-&gt;sin_addr.S_un.S_addr );
+00163 }
+00164 <font class="preprocessor">#elif defined NL_OS_UNIX</font>
+00165 <font class="preprocessor"></font> <font class="keywordflow">if</font> ( a1._SockAddr-&gt;sin_addr.s_addr == a2._SockAddr-&gt;sin_addr.s_addr )
+00166 {
+00167 <font class="keywordflow">return</font> ( a1.port() &lt; a2.port() );
+00168 }
+00169 <font class="keywordflow">else</font>
+00170 {
+00171 <font class="keywordflow">return</font> ( a1._SockAddr-&gt;sin_addr.s_addr &lt; a2._SockAddr-&gt;sin_addr.s_addr );
+00172 }
+00173 <font class="preprocessor">#endif </font>
+00174 <font class="preprocessor"></font>}
+00175
+00176
+00177 <font class="comment">/*</font>
+00178 <font class="comment"> * Constructor contents</font>
+00179 <font class="comment"> */</font>
+<a name="l00180"></a><a class="code" href="classNLNET_1_1CInetAddress.html#c0">00180</a> <font class="keywordtype">void</font> CInetAddress::init()
+00181 {
+00182 CSock::initNetwork();
+00183
+00184 <a class="code" href="classNLNET_1_1CInetAddress.html#o2">_Valid</a> = <font class="keyword">false</font>;
+00185
+00186 <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a> = <font class="keyword">new</font> sockaddr_in;
+00187 <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_family = AF_INET;
+00188 memset( <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_zero, 0, 8 );
+00189 }
+00190
+00191
+00192 <font class="comment">/*</font>
+00193 <font class="comment"> * Destructor</font>
+00194 <font class="comment"> */</font>
+<a name="l00195"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a5">00195</a> CInetAddress::~CInetAddress()
+00196 {
+00197 <font class="keyword">delete</font> <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>;
+00198 <font class="comment">// _Valid = false;</font>
+00199 }
+00200
+00201 <font class="comment">/*</font>
+00202 <font class="comment"> * Sets hostname and port (ex: www.nevrax.com:80)</font>
+00203 <font class="comment"> */</font>
+<a name="l00204"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a8">00204</a> <font class="keywordtype">void</font> CInetAddress::setNameAndPort( <font class="keyword">const</font> std::string&amp; hostNameAndPort )
+00205 {
+00206 <a class="code" href="types__nl_8h.html#a10">uint32</a> pos = hostNameAndPort.find_first_of (<font class="charliteral">':'</font>);
+00207 <font class="keywordflow">if</font> (pos != string::npos)
+00208 {
+00209 <a class="code" href="classNLNET_1_1CInetAddress.html#a7">setPort</a>( atoi(hostNameAndPort.substr(pos + 1).c_str()) );
+00210 }
+00211 <font class="keywordflow">else</font>
+00212 {
+00213 <a class="code" href="classNLNET_1_1CInetAddress.html#a7">setPort</a>( 0 );
+00214 }
+00215
+00216 <font class="comment">// if pos == -1, it will copy all the string</font>
+00217 <a class="code" href="classNLNET_1_1CInetAddress.html#a6">setByName</a>( hostNameAndPort.substr (0, pos) );
+00218 }
+00219
+00220
+00221 <font class="comment">/*</font>
+00222 <font class="comment"> * Resolves a name</font>
+00223 <font class="comment"> */</font>
+<a name="l00224"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a6">00224</a> CInetAddress&amp; CInetAddress::setByName( <font class="keyword">const</font> std::string&amp; hostName )
+00225 {
+00226 <font class="comment">// Try to convert directly for addresses such as a.b.c.d</font>
+00227 in_addr iaddr;
+00228 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
+00229 <font class="preprocessor"></font> iaddr.S_un.S_addr = inet_addr( <a class="code" href="classNLNET_1_1CInetAddress.html#a15">hostName</a>.c_str() );
+00230 <font class="keywordflow">if</font> ( iaddr.S_un.S_addr == INADDR_NONE )
+00231 <font class="preprocessor">#elif defined NL_OS_UNIX</font>
+00232 <font class="preprocessor"></font> iaddr.s_addr = inet_addr( <a class="code" href="classNLNET_1_1CInetAddress.html#a15">hostName</a>.c_str() );
+00233 <font class="keywordflow">if</font> ( iaddr.s_addr == INADDR_NONE )
+00234 <font class="preprocessor">#endif</font>
+00235 <font class="preprocessor"></font> {
+00236
+00237 <font class="comment">// Otherwise use the traditional DNS look-up</font>
+00238 hostent *phostent = gethostbyname( <a class="code" href="classNLNET_1_1CInetAddress.html#a15">hostName</a>.c_str() );
+00239 <font class="keywordflow">if</font> ( phostent == NULL )
+00240 {
+00241 <a class="code" href="classNLNET_1_1CInetAddress.html#o2">_Valid</a> = <font class="keyword">false</font>;
+00242 <a class="code" href="debug_8h.html#a0">nldebug</a>( <font class="stringliteral">"LNETL0: Network error: resolution of hostname '%s' failed"</font>, <a class="code" href="classNLNET_1_1CInetAddress.html#a15">hostName</a>.c_str() );
+00243 <font class="comment">// return *this;</font>
+00244 <font class="keywordflow">throw</font> ESocket( (string(<font class="stringliteral">"Hostname resolution failed for "</font>)+<a class="code" href="classNLNET_1_1CInetAddress.html#a15">hostName</a>).c_str() );
+00245 }
+00246 <a class="code" href="classNLNET_1_1CInetAddress.html#o0">_HostName</a> = string( phostent-&gt;h_name );
+00247 memcpy( &amp;<a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_addr, phostent-&gt;h_addr, <font class="keyword">sizeof</font>(in_addr) );
+00248 }
+00249 <font class="keywordflow">else</font>
+00250 {
+00251 <a class="code" href="classNLNET_1_1CInetAddress.html#o0">_HostName</a> = <a class="code" href="classNLNET_1_1CInetAddress.html#a15">hostName</a>;
+00252 memcpy( &amp;<a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_addr, &amp;iaddr, <font class="keyword">sizeof</font>(iaddr) );
+00253 }
+00254 <a class="code" href="classNLNET_1_1CInetAddress.html#o2">_Valid</a> = <font class="keyword">true</font>;
+00255 <font class="keywordflow">return</font> *<font class="keyword">this</font>;
+00256 }
+00257
+00258
+00259 <font class="comment">/*</font>
+00260 <font class="comment"> * Sets port</font>
+00261 <font class="comment"> */</font>
+<a name="l00262"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a7">00262</a> <font class="keywordtype">void</font> CInetAddress::setPort( <a class="code" href="types__nl_8h.html#a8">uint16</a> port )
+00263 {
+00264 <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_port = htons( <a class="code" href="classNLNET_1_1CInetAddress.html#a16">port</a> );
+00265
+00266 }
+00267
+00268
+00269 <font class="comment">/* Sets internal socket address directly (contents is copied).</font>
+00270 <font class="comment"> * It also retrieves the host name if CInetAddress::RetrieveNames is true.</font>
+00271 <font class="comment"> */</font>
+<a name="l00272"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a9">00272</a> <font class="keywordtype">void</font> CInetAddress::setSockAddr( <font class="keyword">const</font> sockaddr_in* saddr )
+00273 {
+00274 memcpy( <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>, saddr, <font class="keyword">sizeof</font>(*saddr) );
+00275
+00276 <font class="comment">// Get host name</font>
+00277 <font class="comment">// Warning: when it can't find it, it take more than 4 seconds</font>
+00278 <font class="keywordflow">if</font> ( CInetAddress::RetrieveNames )
+00279 {
+00280 hostent *phostent = gethostbyaddr( (<font class="keywordtype">char</font>*)&amp;saddr-&gt;sin_addr.s_addr, 4, AF_INET );
+00281 <font class="keywordflow">if</font> ( phostent == NULL )
+00282 {
+00283 <a class="code" href="classNLNET_1_1CInetAddress.html#o0">_HostName</a> = <a class="code" href="classNLNET_1_1CInetAddress.html#a14">ipAddress</a>();
+00284 }
+00285 <font class="keywordflow">else</font>
+00286 {
+00287 <a class="code" href="classNLNET_1_1CInetAddress.html#o0">_HostName</a> = string( phostent-&gt;h_name );
+00288 }
+00289 }
+00290 <a class="code" href="classNLNET_1_1CInetAddress.html#o2">_Valid</a> = <font class="keyword">true</font>;
+00291 }
+00292
+00293
+00294 <font class="comment">/*</font>
+00295 <font class="comment"> * Returns if object (address and port) is valid</font>
+00296 <font class="comment"> */</font>
+<a name="l00297"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a10">00297</a> <font class="keywordtype">bool</font> CInetAddress::isValid()<font class="keyword"> const</font>
+00298 <font class="keyword"></font>{
+00299 <font class="keywordflow">return</font> ( <a class="code" href="classNLNET_1_1CInetAddress.html#o2">_Valid</a> &amp;&amp; <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_port!=0 ); <font class="comment">// same as ntohs(0)</font>
+00300 }
+00301
+00302
+00303 <font class="comment">/*</font>
+00304 <font class="comment"> * Returns internal socket address (read only)</font>
+00305 <font class="comment"> */</font>
+<a name="l00306"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a11">00306</a> <font class="keyword">const</font> sockaddr_in *CInetAddress::sockAddr()<font class="keyword"> const</font>
+00307 <font class="keyword"></font>{
+00308 <font class="keywordflow">return</font> <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>;
+00309 }
+00310
+00311
+00312 <font class="comment">/*</font>
+00313 <font class="comment"> * Returns internal IP address</font>
+00314 <font class="comment"> */</font>
+<a name="l00315"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a12">00315</a> <a class="code" href="types__nl_8h.html#a10">uint32</a> CInetAddress::internalIPAddress()<font class="keyword"> const</font>
+00316 <font class="keyword"></font>{
+00317 <font class="keywordflow">return</font> <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_addr.s_addr;
+00318 }
+00319
+<a name="l00320"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a13">00320</a> <a class="code" href="types__nl_8h.html#a10">uint32</a> CInetAddress::internalNetAddress()<font class="keyword"> const</font>
+00321 <font class="keyword"></font>{
+00322 <a class="code" href="types__nl_8h.html#a10">uint32</a> ip = <a class="code" href="classNLNET_1_1CInetAddress.html#a12">internalIPAddress</a>();
+00323 <font class="keywordflow">if</font> ((ip&amp;0x00000080) == 0)
+00324 {
+00325 <font class="comment">// A class</font>
+00326 <font class="keywordflow">return</font> ip &amp; 0x000000FF;
+00327 }
+00328 <font class="keywordflow">else</font> <font class="keywordflow">if</font> ((ip&amp;0x00000040) == 0)
+00329 {
+00330 <font class="comment">// B class</font>
+00331 <font class="keywordflow">return</font> ip &amp; 0x0000FFFF;
+00332 }
+00333 <font class="keywordflow">else</font> <font class="keywordflow">if</font> ((ip&amp;0x00000020) == 0)
+00334 {
+00335 <font class="comment">// C class</font>
+00336 <font class="keywordflow">return</font> ip &amp; 0x00FFFFFF;
+00337 }
+00338 <font class="keywordflow">else</font> <font class="keywordflow">if</font> ((ip&amp;0x00000010) == 0)
+00339 {
+00340 <font class="comment">// D class</font>
+00341 <font class="keywordflow">return</font> ip &amp; 0xFFFFFFFF;
+00342 }
+00343 <font class="keywordflow">else</font>
+00344 {
+00345 <font class="keywordflow">return</font> ip;
+00346 }
+00347 }
+00348
+00349
+00350
+00351
+00352 <font class="comment">/*</font>
+00353 <font class="comment"> * Returns readable IP address. (ex: "195.68.21.195")</font>
+00354 <font class="comment"> */</font>
+<a name="l00355"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a14">00355</a> string CInetAddress::ipAddress()<font class="keyword"> const</font>
+00356 <font class="keyword"></font>{
+00357 <font class="comment">/*stringstream ss; // or use inet_ntoa</font>
+00358 <font class="comment"> ss &lt;&lt; inet_ntoa ( _SockAddr-&gt;sin_addr );</font>
+00359 <font class="comment"> return ss.str();*/</font>
+00360 <font class="keywordflow">return</font> string( inet_ntoa( <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_addr ) );
+00361 }
+00362
+00363
+00364 <font class="comment">/*</font>
+00365 <font class="comment"> * Returns host name. (ex: "www.nevrax.org")</font>
+00366 <font class="comment"> */</font>
+<a name="l00367"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a15">00367</a> <font class="keyword">const</font> string&amp; CInetAddress::hostName()<font class="keyword"> const</font>
+00368 <font class="keyword"></font>{
+00369 <font class="keywordflow">return</font> <a class="code" href="classNLNET_1_1CInetAddress.html#o0">_HostName</a>;
+00370 }
+00371
+00372
+00373 <font class="comment">/*</font>
+00374 <font class="comment"> * Returns port</font>
+00375 <font class="comment"> */</font>
+<a name="l00376"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a16">00376</a> <a class="code" href="types__nl_8h.html#a8">uint16</a> CInetAddress::port()<font class="keyword"> const</font>
+00377 <font class="keyword"></font>{
+00378 <font class="keywordflow">return</font> ntohs( <a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>-&gt;sin_port );
+00379 }
+00380
+00381
+00382 <font class="comment">/*</font>
+00383 <font class="comment"> * Returns hostname and port as a string. (ex: "www.nevrax.org:80 (195.68.21.195)")</font>
+00384 <font class="comment"> */</font>
+<a name="l00385"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a17">00385</a> std::string CInetAddress::asString()<font class="keyword"> const</font>
+00386 <font class="keyword"></font>{
+00387 stringstream ss;
+00388 ss &lt;&lt; <a class="code" href="classNLNET_1_1CInetAddress.html#a15">hostName</a>() &lt;&lt; <font class="stringliteral">":"</font> &lt;&lt; <a class="code" href="classNLNET_1_1CInetAddress.html#a16">port</a>() &lt;&lt; <font class="stringliteral">" ("</font> &lt;&lt; <a class="code" href="classNLNET_1_1CInetAddress.html#a14">ipAddress</a>() &lt;&lt; <font class="stringliteral">")"</font>;
+00389 <font class="keywordflow">return</font> ss.str();
+00390 }
+00391
+00392
+00393 <font class="comment">/*</font>
+00394 <font class="comment"> * Returns IP address and port as a string. (ex: "195.68.21.195:80")</font>
+00395 <font class="comment"> */</font>
+<a name="l00396"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a18">00396</a> std::string CInetAddress::asIPString()<font class="keyword"> const</font>
+00397 <font class="keyword"></font>{
+00398 stringstream ss;
+00399 ss &lt;&lt; <a class="code" href="classNLNET_1_1CInetAddress.html#a14">ipAddress</a>() &lt;&lt; <font class="stringliteral">":"</font> &lt;&lt; <a class="code" href="classNLNET_1_1CInetAddress.html#a16">port</a>();
+00400 <font class="keywordflow">return</font> ss.str();
+00401 }
+00402
+00403
+00404 <font class="comment">/*</font>
+00405 <font class="comment"> * Serialize</font>
+00406 <font class="comment"> */</font>
+<a name="l00407"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a19">00407</a> <font class="keywordtype">void</font> CInetAddress::serial( <a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a>&amp; <a class="code" href="driver__opengl__extension__def_8h.html#a260">s</a> )
+00408 {
+00409 <a class="code" href="classNLMISC_1_1CMemStream.html">NLMISC::CMemStream</a> *ms = dynamic_cast&lt;NLMISC::CMemStream*&gt;(&amp;s);
+00410 <font class="keywordflow">if</font> ( ms &amp;&amp; ms-&gt;<a class="code" href="classNLMISC_1_1CMemStream.html#a4">stringMode</a>() )
+00411 {
+00412 <font class="comment">// String stream</font>
+00413 string addrs;
+00414 <font class="keywordflow">if</font> ( ms-&gt;<a class="code" href="classNLMISC_1_1IStream.html#a4">isReading</a>() )
+00415 {
+00416 ms-&gt;<a class="code" href="classNLMISC_1_1CMemStream.html#a21">serial</a>( addrs );
+00417 <a class="code" href="classNLNET_1_1CInetAddress.html#a8">setNameAndPort</a>( addrs );
+00418 }
+00419 <font class="keywordflow">else</font>
+00420 {
+00421 addrs = <a class="code" href="classNLNET_1_1CInetAddress.html#a18">asIPString</a>();
+00422 ms-&gt;<a class="code" href="classNLMISC_1_1CMemStream.html#a21">serial</a>( addrs );
+00423 }
+00424 s.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>( <a class="code" href="classNLNET_1_1CInetAddress.html#o2">_Valid</a> );
+00425 }
+00426 <font class="keywordflow">else</font>
+00427 {
+00428 <font class="comment">// Binary stream</font>
+00429 s.<a class="code" href="classNLMISC_1_1IStream.html#z320_0">serialBuffer</a>( (<a class="code" href="types__nl_8h.html#a6">uint8</a>*)<a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>, <font class="keyword">sizeof</font>(*<a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>) ); <font class="comment">// this is possible only because the contents of _SockAddr is platform-independant !</font>
+00430 s.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>( <a class="code" href="classNLNET_1_1CInetAddress.html#o2">_Valid</a> );
+00431
+00432 <font class="keywordflow">if</font>(_Valid)
+00433 {
+00434 <font class="comment">// retreive the fullname</font>
+00435 <a class="code" href="classNLNET_1_1CInetAddress.html#a9">setSockAddr</a> (<a class="code" href="classNLNET_1_1CInetAddress.html#o1">_SockAddr</a>);
+00436 }
+00437
+00438 }
+00439 }
+00440
+00441
+00442 <font class="comment">/*</font>
+00443 <font class="comment"> * Creates a CInetAddress object with local host address, port=0</font>
+00444 <font class="comment"> */</font>
+<a name="l00445"></a><a class="code" href="classNLNET_1_1CInetAddress.html#d0">00445</a> CInetAddress CInetAddress::localHost()
+00446 {
+00447 <font class="keyword">const</font> <a class="code" href="types__nl_8h.html#a14">uint</a> maxlength = 80;
+00448 <font class="keywordtype">char</font> localhost [maxlength];
+00449 <font class="keywordflow">if</font> ( gethostname( localhost, maxlength ) != 0 )
+00450 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Unable to get local hostname"</font> );
+00451 <a class="code" href="classNLNET_1_1CInetAddress.html#a0">CInetAddress</a> localaddr = <a class="code" href="classNLNET_1_1CInetAddress.html#a0">CInetAddress</a>( string(localhost) );
+00452
+00453 <font class="keywordflow">if</font> ( localaddr.ipAddress() == <font class="stringliteral">"127.0.0.1"</font> )
+00454 {
+00455 <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"*** No network card detected! using localhost (127.0.0.1)"</font>);
+00456 }
+00457
+00458 <font class="keywordflow">return</font> localaddr;
+00459 }
+00460
+00461
+00462 <font class="comment">/* Returns the list of the local host addresses (with port=0)</font>
+00463 <font class="comment"> * (especially useful if the host is multihomed)</font>
+00464 <font class="comment"> */</font>
+<a name="l00465"></a><a class="code" href="classNLNET_1_1CInetAddress.html#d1">00465</a> std::vector&lt;CInetAddress&gt; CInetAddress::localAddresses()
+00466 {
+00467 <font class="comment">// 1. Get local host name</font>
+00468 <font class="keyword">const</font> <a class="code" href="types__nl_8h.html#a14">uint</a> maxlength = 80;
+00469 <font class="keywordtype">char</font> localhost [maxlength];
+00470 <font class="keywordflow">if</font> ( gethostname( localhost, maxlength ) == SOCKET_ERROR )
+00471 {
+00472 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Unable to get local hostname"</font> );
+00473 }
+00474
+00475 <font class="comment">// 2. Get address list</font>
+00476 hostent *phostent = gethostbyname( localhost );
+00477 <font class="keywordflow">if</font> ( phostent == NULL )
+00478 {
+00479 <font class="keywordflow">throw</font> ESocket( (string(<font class="stringliteral">"Hostname resolution failed for "</font>)+string(localhost)).c_str() );
+00480 }
+00481 <a class="code" href="types__nl_8h.html#a14">uint</a> i;
+00482 vector&lt;CInetAddress&gt; vect;
+00483 <font class="keywordflow">for</font> ( i=0; phostent-&gt;h_addr_list[i]!=0; ++i )
+00484 {
+00485 vect.push_back( <a class="code" href="classNLNET_1_1CInetAddress.html#a0">CInetAddress</a>( (<font class="keyword">const</font> in_addr*)(phostent-&gt;h_addr_list[i]) ) );
+00486 }
+00487
+00488 <font class="keywordflow">if</font>(vect.empty())
+00489 {
+00490 <font class="keywordflow">throw</font> ESocket( (string(<font class="stringliteral">"No network card detected for "</font>)+string(localhost)).c_str() );
+00491 }
+00492
+00493 <font class="keywordflow">return</font> vect;
+00494 }
+00495
+<a name="l00496"></a><a class="code" href="classNLNET_1_1CInetAddress.html#a20">00496</a> <font class="keywordtype">bool</font> CInetAddress::is127001 ()<font class="keyword"> const </font>
+00497 <font class="keyword"></font>{
+00498 <font class="keywordflow">return</font> (<a class="code" href="classNLNET_1_1CInetAddress.html#a12">internalIPAddress</a> () == htonl(0x7F000001));
+00499 }
+00500
+00501
+00502 std::string <a class="code" href="namespaceNLNET.html#a85">vectorCInetAddressToString</a>(<font class="keyword">const</font> std::vector&lt;CInetAddress&gt; &amp;addrs)
+00503 {
+00504 string str;
+00505
+00506 <font class="keywordflow">for</font> (<a class="code" href="types__nl_8h.html#a14">uint</a> i = 0; i &lt; addrs.size(); i++)
+00507 {
+00508 <font class="keywordflow">if</font> (i != 0)
+00509 str += <font class="stringliteral">" "</font>;
+00510 str += addrs[i].asString().c_str ();
+00511 }
+00512 <font class="keywordflow">return</font> str;
+00513 }
+00514
+00515 <a class="code" href="types__nl_8h.html#a10">uint32</a> <a class="code" href="namespaceNLNET.html#a83">stringToInternalIPAddress</a> (<font class="keyword">const</font> std::string &amp;addr)
+00516 {
+00517 <font class="keywordflow">return</font> inet_addr( addr.c_str() );
+00518 }
+00519
+00520 std::string <a class="code" href="namespaceNLNET.html#a84">internalIPAddressToString</a> (<a class="code" href="types__nl_8h.html#a10">uint32</a> addr)
+00521 {
+00522 string res;
+00523 res = toString((addr)&amp;0xFF);
+00524 res += <font class="stringliteral">"."</font>;
+00525 res += toString((addr&gt;&gt;8)&amp;0xFF);
+00526 res += <font class="stringliteral">"."</font>;
+00527 res += toString((addr&gt;&gt;16)&amp;0xFF);
+00528 res += <font class="stringliteral">"."</font>;
+00529 res += toString((addr&gt;&gt;24)&amp;0xFF);
+00530 <font class="keywordflow">return</font> res;
+00531 }
+00532
+00533
+00534 } <font class="comment">// NLNET</font>
+</pre></div>
+
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