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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>
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