doc/doxygen/html/can__socket_8c-source.html
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<title>CanFestival: drivers/can_socket/can_socket.c Source File</title>
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<a class="el" href="dir_65dd258ff9b9ef4cd7bd0d22f5e58dba.html">drivers</a>&nbsp;&raquo&nbsp;<a class="el" href="dir_46e557474a543d869f47f8b41f6c92ae.html">can_socket</a></div>
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<h1>can_socket.c</h1><a href="can__socket_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
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<a name="l00002"></a>00002 <span class="comment">This file is part of CanFestival, a library implementing CanOpen Stack.</span>
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<a name="l00003"></a>00003 <span class="comment"></span>
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<a name="l00004"></a>00004 <span class="comment">Copyright (C): Edouard TISSERANT and Francis DUPIN</span>
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<a name="l00005"></a>00005 <span class="comment"></span>
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<a name="l00006"></a>00006 <span class="comment">See COPYING file for copyrights details.</span>
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<a name="l00007"></a>00007 <span class="comment"></span>
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<a name="l00008"></a>00008 <span class="comment">This library is free software; you can redistribute it and/or</span>
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<a name="l00009"></a>00009 <span class="comment">modify it under the terms of the GNU Lesser General Public</span>
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<a name="l00010"></a>00010 <span class="comment">License as published by the Free Software Foundation; either</span>
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<a name="l00011"></a>00011 <span class="comment">version 2.1 of the License, or (at your option) any later version.</span>
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<a name="l00012"></a>00012 <span class="comment"></span>
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<a name="l00013"></a>00013 <span class="comment">This library is distributed in the hope that it will be useful,</span>
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<a name="l00014"></a>00014 <span class="comment">but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
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<a name="l00015"></a>00015 <span class="comment">MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU</span>
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<a name="l00016"></a>00016 <span class="comment">Lesser General Public License for more details.</span>
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<a name="l00017"></a>00017 <span class="comment"></span>
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<a name="l00018"></a>00018 <span class="comment">You should have received a copy of the GNU Lesser General Public</span>
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<a name="l00019"></a>00019 <span class="comment">License along with this library; if not, write to the Free Software</span>
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<a name="l00020"></a>00020 <span class="comment">Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA</span>
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<a name="l00021"></a>00021 <span class="comment">*/</span>
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<a name="l00022"></a>00022 
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<a name="l00023"></a>00023 <span class="preprocessor">#include &lt;stdio.h&gt;</span>
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<a name="l00024"></a>00024 <span class="preprocessor">#include &lt;string.h&gt;</span>
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<a name="l00025"></a>00025 <span class="preprocessor">#include &lt;stdlib.h&gt;</span>
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<a name="l00026"></a>00026 <span class="preprocessor">#include &lt;stddef.h&gt;</span>             <span class="comment">/* for NULL */</span>
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<a name="l00027"></a>00027 <span class="preprocessor">#include &lt;errno.h&gt;</span>
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<a name="l00028"></a>00028 
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<a name="l00029"></a>00029 <span class="preprocessor">#include "<a class="code" href="win32_2config_8h.html">config.h</a>"</span>
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<a name="l00030"></a>00030 
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<a name="l00031"></a>00031 <span class="preprocessor">#ifdef RTCAN_SOCKET</span>
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<a name="l00032"></a>00032 <span class="preprocessor"></span><span class="preprocessor">#include "rtdm/rtcan.h"</span>
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<a name="l00033"></a>00033 <span class="preprocessor">#define CAN_IFNAME     "rtcan%s"</span>
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<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="preprocessor">#define CAN_SOCKET     rt_dev_socket</span>
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<a name="l00035"></a>00035 <span class="preprocessor"></span><span class="preprocessor">#define CAN_CLOSE      rt_dev_close</span>
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<a name="l00036"></a>00036 <span class="preprocessor"></span><span class="preprocessor">#define CAN_RECV       rt_dev_recv</span>
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<a name="l00037"></a>00037 <span class="preprocessor"></span><span class="preprocessor">#define CAN_SEND       rt_dev_send</span>
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<a name="l00038"></a>00038 <span class="preprocessor"></span><span class="preprocessor">#define CAN_BIND       rt_dev_bind</span>
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<a name="l00039"></a>00039 <span class="preprocessor"></span><span class="preprocessor">#define CAN_IOCTL      rt_dev_ioctl</span>
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<a name="l00040"></a>00040 <span class="preprocessor"></span><span class="preprocessor">#define CAN_ERRNO(err) (-err)</span>
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<a name="l00041"></a>00041 <span class="preprocessor"></span><span class="preprocessor">#else</span>
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<a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor">#include &lt;sys/socket.h&gt;</span>
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<a name="l00043"></a>00043 <span class="preprocessor">#include &lt;sys/ioctl.h&gt;</span>
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<a name="l00044"></a>00044 <span class="preprocessor">#include "linux/can.h"</span>
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<a name="l00045"></a>00045 <span class="preprocessor">#include "linux/can/raw.h"</span>
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<a name="l00046"></a>00046 <span class="preprocessor">#include "net/if.h"</span>
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<a name="l00047"></a><a class="code" href="can__socket_8c.html#17621bf583b5512955895eea23fbf605">00047</a> <span class="preprocessor">#define PF_CAN 29</span>
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<a name="l00048"></a><a class="code" href="can__socket_8c.html#4b444c39ffe73d7265a8fd1f9574359a">00048</a> <span class="preprocessor"></span><span class="preprocessor">#define AF_CAN PF_CAN</span>
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<a name="l00049"></a>00049 <span class="preprocessor"></span><span class="comment">//#include "af_can.h"</span>
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<a name="l00050"></a><a class="code" href="can__socket_8c.html#89884954a188d907256419c1ff3312b9">00050</a> <span class="preprocessor">#define CAN_IFNAME     "can%s"</span>
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<a name="l00051"></a><a class="code" href="can__socket_8c.html#4eaf4f417b909f1f45be28cada2c290a">00051</a> <span class="preprocessor"></span><span class="preprocessor">#define CAN_SOCKET     socket</span>
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<a name="l00052"></a><a class="code" href="can__socket_8c.html#9b4deca58f52eefbbde4f8accefd154d">00052</a> <span class="preprocessor"></span><span class="preprocessor">#define CAN_CLOSE      close</span>
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<a name="l00053"></a><a class="code" href="can__socket_8c.html#da8034e638199b5aac1db8434caa10cc">00053</a> <span class="preprocessor"></span><span class="preprocessor">#define CAN_RECV       recv</span>
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<a name="l00054"></a><a class="code" href="can__socket_8c.html#12cff95e04c908461730b70fbffd53a7">00054</a> <span class="preprocessor"></span><span class="preprocessor">#define CAN_SEND       send</span>
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<a name="l00055"></a><a class="code" href="can__socket_8c.html#7663ba5c0f4cf14506c929080b712100">00055</a> <span class="preprocessor"></span><span class="preprocessor">#define CAN_BIND       bind</span>
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<a name="l00056"></a><a class="code" href="can__socket_8c.html#133b8d3a55193dcd23c7b3b6e8f733e2">00056</a> <span class="preprocessor"></span><span class="preprocessor">#define CAN_IOCTL      ioctl</span>
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<a name="l00057"></a><a class="code" href="can__socket_8c.html#1aab66d04679810c59d88bb5b3ba706f">00057</a> <span class="preprocessor"></span><span class="preprocessor">#define CAN_ERRNO(err) errno</span>
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<a name="l00058"></a>00058 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
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<a name="l00059"></a>00059 <span class="preprocessor"></span>
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<a name="l00060"></a>00060 <span class="preprocessor">#include "<a class="code" href="can__driver_8h.html">can_driver.h</a>"</span>
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<a name="l00061"></a>00061 
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<a name="l00062"></a>00062 <span class="comment">/*********functions which permit to communicate with the board****************/</span>
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<a name="l00063"></a>00063 <a class="code" href="hcs12_2applicfg_8h.html#c2e754635928189b98cf3f5b7e6dbffb">UNS8</a>
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<a name="l00064"></a><a class="code" href="can__socket_8c.html#b0b7065be05f6d53009b7bd46626e2c0">00064</a> <a class="code" href="can__lincan_8c.html#b0b7065be05f6d53009b7bd46626e2c0">canReceive_driver</a> (<a class="code" href="unix_2applicfg_8h.html#324227f7b01d51ee83a883174769ac8f">CAN_HANDLE</a> fd0, <a class="code" href="structMessage.html">Message</a> * m)
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<a name="l00065"></a>00065 {
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<a name="l00066"></a>00066   <span class="keywordtype">int</span> res;
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<a name="l00067"></a>00067   <span class="keyword">struct </span>can_frame frame;
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<a name="l00068"></a>00068 
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<a name="l00069"></a>00069   res = <a class="code" href="can__socket_8c.html#da8034e638199b5aac1db8434caa10cc">CAN_RECV</a> (*(<span class="keywordtype">int</span> *) fd0, &amp;frame, <span class="keyword">sizeof</span> (frame), 0);
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<a name="l00070"></a>00070   <span class="keywordflow">if</span> (res &lt; 0)
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<a name="l00071"></a>00071     {
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<a name="l00072"></a>00072       fprintf (stderr, <span class="stringliteral">"Recv failed: %s\n"</span>, strerror (<a class="code" href="can__socket_8c.html#1aab66d04679810c59d88bb5b3ba706f">CAN_ERRNO</a> (res)));
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<a name="l00073"></a>00073       <span class="keywordflow">return</span> 1;
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<a name="l00074"></a>00074     }
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<a name="l00075"></a>00075 
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<a name="l00076"></a>00076   m-&gt;<a class="code" href="structMessage.html#21cda7edcf0800d296151c83e7f9948e">cob_id</a>.<a class="code" href="structSHORT__CAN.html#e77854035fa72dc0769724a2d056bc9d">w</a> = frame.can_id &amp; CAN_EFF_MASK;
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<a name="l00077"></a>00077   m-&gt;<a class="code" href="structMessage.html#a8c32de83f67079897508203c8e2198c">len</a> = frame.can_dlc;
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<a name="l00078"></a>00078   <span class="keywordflow">if</span> (frame.can_id &amp; CAN_RTR_FLAG)
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<a name="l00079"></a>00079     m-&gt;<a class="code" href="structMessage.html#4fea58e2ceec365228be253ba3d8bdba">rtr</a> = 1;
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<a name="l00080"></a>00080   <span class="keywordflow">else</span>
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<a name="l00081"></a>00081     m-&gt;<a class="code" href="structMessage.html#4fea58e2ceec365228be253ba3d8bdba">rtr</a> = 0;
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<a name="l00082"></a>00082   memcpy (m-&gt;<a class="code" href="structMessage.html#9f53ff2fea190c14dd66e2c92a32ec45">data</a>, frame.data, 8);
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<a name="l00083"></a>00083 
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<a name="l00084"></a>00084   <span class="keywordflow">return</span> 0;
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<a name="l00085"></a>00085 }
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<a name="l00086"></a>00086 
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<a name="l00087"></a>00087 
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<a name="l00088"></a>00088 <span class="comment">/***************************************************************************/</span>
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<a name="l00089"></a>00089 <a class="code" href="hcs12_2applicfg_8h.html#c2e754635928189b98cf3f5b7e6dbffb">UNS8</a>
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<a name="l00090"></a><a class="code" href="can__socket_8c.html#36327c9e0ec6d284b346963a321e3c2b">00090</a> <a class="code" href="can__lincan_8c.html#36327c9e0ec6d284b346963a321e3c2b">canSend_driver</a> (<a class="code" href="unix_2applicfg_8h.html#324227f7b01d51ee83a883174769ac8f">CAN_HANDLE</a> fd0, <a class="code" href="structMessage.html">Message</a> * m)
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<a name="l00091"></a>00091 {
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<a name="l00092"></a>00092   <span class="keywordtype">int</span> res;
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   114
<a name="l00093"></a>00093   <span class="keyword">struct </span>can_frame frame;
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<a name="l00094"></a>00094 
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<a name="l00095"></a>00095   frame.can_id = m-&gt;<a class="code" href="structMessage.html#21cda7edcf0800d296151c83e7f9948e">cob_id</a>.<a class="code" href="structSHORT__CAN.html#e77854035fa72dc0769724a2d056bc9d">w</a>;
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<a name="l00096"></a>00096   <span class="keywordflow">if</span> (frame.can_id &gt;= 0x800)
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<a name="l00097"></a>00097     frame.can_id |= CAN_EFF_FLAG;
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<a name="l00098"></a>00098   frame.can_dlc = m-&gt;<a class="code" href="structMessage.html#a8c32de83f67079897508203c8e2198c">len</a>;
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<a name="l00099"></a>00099   <span class="keywordflow">if</span> (m-&gt;<a class="code" href="structMessage.html#4fea58e2ceec365228be253ba3d8bdba">rtr</a>)
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<a name="l00100"></a>00100     frame.can_id |= CAN_RTR_FLAG;
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   122
<a name="l00101"></a>00101   <span class="keywordflow">else</span>
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   123
<a name="l00102"></a>00102     memcpy (frame.data, m-&gt;<a class="code" href="structMessage.html#9f53ff2fea190c14dd66e2c92a32ec45">data</a>, 8);
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   124
<a name="l00103"></a>00103 
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<a name="l00104"></a>00104   res = <a class="code" href="can__socket_8c.html#12cff95e04c908461730b70fbffd53a7">CAN_SEND</a> (*(<span class="keywordtype">int</span> *) fd0, &amp;frame, <span class="keyword">sizeof</span> (frame), 0);
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<a name="l00105"></a>00105   <span class="keywordflow">if</span> (res &lt; 0)
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<a name="l00106"></a>00106     {
240
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<a name="l00107"></a>00107       fprintf (stderr, <span class="stringliteral">"Send failed: %s\n"</span>, strerror (<a class="code" href="can__socket_8c.html#1aab66d04679810c59d88bb5b3ba706f">CAN_ERRNO</a> (res)));
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<a name="l00108"></a>00108       <span class="keywordflow">return</span> 1;
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<a name="l00109"></a>00109     }
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<a name="l00110"></a>00110 
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<a name="l00111"></a>00111   <span class="keywordflow">return</span> 0;
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<a name="l00112"></a>00112 }
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   134
<a name="l00113"></a>00113 
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<a name="l00114"></a>00114 <span class="comment">/***************************************************************************/</span>
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   136
<a name="l00115"></a>00115 <span class="preprocessor">#ifdef RTCAN_SOCKET</span>
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<a name="l00116"></a>00116 <span class="preprocessor"></span><span class="keywordtype">int</span>
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<a name="l00117"></a>00117 TranslateBaudRate (<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="TestMasterSlave_2getopt_8c.html#a2d33a77952a7e6973146c1284042818">optarg</a>)
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<a name="l00118"></a>00118 {
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<a name="l00119"></a>00119   <span class="keywordtype">int</span> baudrate;
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<a name="l00120"></a>00120   <span class="keywordtype">int</span> val, len;
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<a name="l00121"></a>00121   <span class="keywordtype">char</span> *pos = NULL;
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   143
<a name="l00122"></a>00122 
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<a name="l00123"></a>00123   len = strlen (optarg);
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   145
<a name="l00124"></a>00124   <span class="keywordflow">if</span> (!len)
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<a name="l00125"></a>00125     <span class="keywordflow">return</span> 0;
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   147
<a name="l00126"></a>00126 
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<a name="l00127"></a>00127   <span class="keywordflow">switch</span> ((<span class="keywordtype">int</span>) optarg[len - 1])
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<a name="l00128"></a>00128     {
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   150
<a name="l00129"></a>00129     <span class="keywordflow">case</span> <span class="charliteral">'M'</span>:
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<a name="l00130"></a>00130       baudrate = 1000000;
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   152
<a name="l00131"></a>00131       <span class="keywordflow">break</span>;
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   153
<a name="l00132"></a>00132     <span class="keywordflow">case</span> <span class="charliteral">'K'</span>:
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<a name="l00133"></a>00133       baudrate = 1000;
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   155
<a name="l00134"></a>00134       <span class="keywordflow">break</span>;
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   156
<a name="l00135"></a>00135     <span class="keywordflow">default</span>:
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<a name="l00136"></a>00136       baudrate = 1;
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   158
<a name="l00137"></a>00137       <span class="keywordflow">break</span>;
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<a name="l00138"></a>00138     }
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<a name="l00139"></a>00139   <span class="keywordflow">if</span> ((sscanf (optarg, <span class="stringliteral">"%i"</span>, &amp;val)) == 1)
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<a name="l00140"></a>00140     baudrate *= val;
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<a name="l00141"></a>00141   <span class="keywordflow">else</span>
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<a name="l00142"></a>00142     baudrate = 0;;
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   164
<a name="l00143"></a>00143 
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<a name="l00144"></a>00144   <span class="keywordflow">return</span> baudrate;
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<a name="l00145"></a>00145 }
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<a name="l00146"></a>00146 <span class="preprocessor">#endif</span>
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<a name="l00147"></a>00147 <span class="preprocessor"></span>
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<a name="l00148"></a>00148 <span class="comment">/***************************************************************************/</span>
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<a name="l00149"></a>00149 <a class="code" href="unix_2applicfg_8h.html#324227f7b01d51ee83a883174769ac8f">CAN_HANDLE</a>
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<a name="l00150"></a><a class="code" href="can__socket_8c.html#a91c5884b47322592815c82427be3fac">00150</a> <a class="code" href="can__lincan_8c.html#a91c5884b47322592815c82427be3fac">canOpen_driver</a> (<a class="code" href="structstruct__s__BOARD.html">s_BOARD</a> * board)
215
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<a name="l00151"></a>00151 {
f49e5a6b7804 Manual and Documentation finish
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<a name="l00152"></a>00152   <span class="keyword">struct </span>ifreq ifr;
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   174
<a name="l00153"></a>00153   <span class="keyword">struct </span>sockaddr_can addr;
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<a name="l00154"></a>00154   <span class="keywordtype">int</span> err;
240
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   176
<a name="l00155"></a>00155   <a class="code" href="unix_2applicfg_8h.html#324227f7b01d51ee83a883174769ac8f">CAN_HANDLE</a> fd0 = malloc (<span class="keyword">sizeof</span> (<span class="keywordtype">int</span>));
215
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<a name="l00156"></a>00156 <span class="preprocessor">#ifdef RTCAN_SOCKET</span>
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<a name="l00157"></a>00157 <span class="preprocessor"></span>  can_baudrate_t *baudrate;
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<a name="l00158"></a>00158   can_mode_t *mode;
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<a name="l00159"></a>00159 <span class="preprocessor">#endif</span>
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<a name="l00160"></a>00160 <span class="preprocessor"></span>
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<a name="l00161"></a>00161   *(<span class="keywordtype">int</span> *) fd0 = <a class="code" href="can__socket_8c.html#4eaf4f417b909f1f45be28cada2c290a">CAN_SOCKET</a> (<a class="code" href="can__socket_8c.html#17621bf583b5512955895eea23fbf605">PF_CAN</a>, SOCK_RAW, CAN_RAW);
215
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<a name="l00162"></a>00162   <span class="keywordflow">if</span> (*(<span class="keywordtype">int</span> *) fd0 &lt; 0)
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<a name="l00163"></a>00163     {
f49e5a6b7804 Manual and Documentation finish
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   185
<a name="l00164"></a>00164       fprintf (stderr, <span class="stringliteral">"Socket creation failed: %s\n"</span>,
240
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   186
<a name="l00165"></a>00165                strerror (<a class="code" href="can__socket_8c.html#1aab66d04679810c59d88bb5b3ba706f">CAN_ERRNO</a> (*(<span class="keywordtype">int</span> *) fd0)));
215
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<a name="l00166"></a>00166       <span class="keywordflow">goto</span> error_ret;
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   188
<a name="l00167"></a>00167     }
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<a name="l00168"></a>00168 
240
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<a name="l00169"></a>00169   <span class="keywordflow">if</span> (*board-&gt;<a class="code" href="structstruct__s__BOARD.html#83944366d00f1fbb0ab61e6532a4e9f2">busname</a> &gt;= <span class="charliteral">'0'</span> &amp;&amp; *board-&gt;<a class="code" href="structstruct__s__BOARD.html#83944366d00f1fbb0ab61e6532a4e9f2">busname</a> &lt;= <span class="charliteral">'9'</span>)
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   191
<a name="l00170"></a>00170     snprintf (ifr.ifr_name, IFNAMSIZ, <a class="code" href="can__socket_8c.html#89884954a188d907256419c1ff3312b9">CAN_IFNAME</a>, board-&gt;<a class="code" href="structstruct__s__BOARD.html#83944366d00f1fbb0ab61e6532a4e9f2">busname</a>);
215
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<a name="l00171"></a>00171   <span class="keywordflow">else</span>
240
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   193
<a name="l00172"></a>00172     strncpy (ifr.ifr_name, board-&gt;<a class="code" href="structstruct__s__BOARD.html#83944366d00f1fbb0ab61e6532a4e9f2">busname</a>, IFNAMSIZ);
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   194
<a name="l00173"></a>00173   err = <a class="code" href="can__socket_8c.html#133b8d3a55193dcd23c7b3b6e8f733e2">CAN_IOCTL</a> (*(<span class="keywordtype">int</span> *) fd0, SIOCGIFINDEX, &amp;ifr);
215
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   195
<a name="l00174"></a>00174   <span class="keywordflow">if</span> (err)
f49e5a6b7804 Manual and Documentation finish
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   196
<a name="l00175"></a>00175     {
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   197
<a name="l00176"></a>00176       fprintf (stderr, <span class="stringliteral">"Getting IF index for %s failed: %s\n"</span>,
240
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   198
<a name="l00177"></a>00177                ifr.ifr_name, strerror (<a class="code" href="can__socket_8c.html#1aab66d04679810c59d88bb5b3ba706f">CAN_ERRNO</a> (err)));
215
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<a name="l00178"></a>00178       <span class="keywordflow">goto</span> error_close;
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   200
<a name="l00179"></a>00179     }
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<a name="l00180"></a>00180 
240
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<a name="l00181"></a>00181   addr.can_family = <a class="code" href="can__socket_8c.html#4b444c39ffe73d7265a8fd1f9574359a">AF_CAN</a>;
215
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<a name="l00182"></a>00182   addr.can_ifindex = ifr.ifr_ifindex;
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<a name="l00183"></a>00183   err = <a class="code" href="can__socket_8c.html#7663ba5c0f4cf14506c929080b712100">CAN_BIND</a> (*(<span class="keywordtype">int</span> *) fd0, (<span class="keyword">struct</span> sockaddr *) &amp;addr, <span class="keyword">sizeof</span> (addr));
215
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<a name="l00184"></a>00184   <span class="keywordflow">if</span> (err)
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   206
<a name="l00185"></a>00185     {
240
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   207
<a name="l00186"></a>00186       fprintf (stderr, <span class="stringliteral">"Binding failed: %s\n"</span>, strerror (<a class="code" href="can__socket_8c.html#1aab66d04679810c59d88bb5b3ba706f">CAN_ERRNO</a> (err)));
215
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<a name="l00187"></a>00187       <span class="keywordflow">goto</span> error_close;
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   209
<a name="l00188"></a>00188     }
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<a name="l00189"></a>00189 
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<a name="l00190"></a>00190 <span class="preprocessor">#ifdef RTCAN_SOCKET</span>
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<a name="l00191"></a>00191 <span class="preprocessor"></span>  baudrate = (can_baudrate_t *) &amp; ifr.ifr_ifru;
240
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<a name="l00192"></a>00192   *baudrate = TranslateBaudRate (board-&gt;<a class="code" href="structstruct__s__BOARD.html#8fa92cf9df3b66e547c079de89b00562">baudrate</a>);
215
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<a name="l00193"></a>00193   <span class="keywordflow">if</span> (!*baudrate)
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<a name="l00194"></a>00194     <span class="keywordflow">goto</span> error_close;
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   216
<a name="l00195"></a>00195 
240
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<a name="l00196"></a>00196   err = <a class="code" href="can__socket_8c.html#133b8d3a55193dcd23c7b3b6e8f733e2">CAN_IOCTL</a> (*(<span class="keywordtype">int</span> *) fd0, SIOCSCANBAUDRATE, &amp;ifr);
215
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<a name="l00197"></a>00197   <span class="keywordflow">if</span> (err)
f49e5a6b7804 Manual and Documentation finish
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   219
<a name="l00198"></a>00198     {
f49e5a6b7804 Manual and Documentation finish
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   220
<a name="l00199"></a>00199       fprintf (stderr,
f49e5a6b7804 Manual and Documentation finish
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   221
<a name="l00200"></a>00200                <span class="stringliteral">"Setting baudrate %d failed: %s\n"</span>,
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<a name="l00201"></a>00201                *baudrate, strerror (<a class="code" href="can__socket_8c.html#1aab66d04679810c59d88bb5b3ba706f">CAN_ERRNO</a> (err)));
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<a name="l00202"></a>00202       <span class="keywordflow">goto</span> error_close;
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<a name="l00203"></a>00203     }
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<a name="l00204"></a>00204 
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<a name="l00205"></a>00205   mode = (can_mode_t *) &amp; ifr.ifr_ifru;
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<a name="l00206"></a>00206   *mode = CAN_MODE_START;
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<a name="l00207"></a>00207   err = <a class="code" href="can__socket_8c.html#133b8d3a55193dcd23c7b3b6e8f733e2">CAN_IOCTL</a> (*(<span class="keywordtype">int</span> *) fd0, SIOCSCANMODE, &amp;ifr);
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<a name="l00208"></a>00208   <span class="keywordflow">if</span> (err)
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<a name="l00209"></a>00209     {
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<a name="l00210"></a>00210       fprintf (stderr, <span class="stringliteral">"Starting CAN device failed: %s\n"</span>,
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<a name="l00211"></a>00211                strerror (<a class="code" href="can__socket_8c.html#1aab66d04679810c59d88bb5b3ba706f">CAN_ERRNO</a> (err)));
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<a name="l00212"></a>00212       <span class="keywordflow">goto</span> error_close;
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<a name="l00213"></a>00213     }
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<a name="l00214"></a>00214 <span class="preprocessor">#endif</span>
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<a name="l00215"></a>00215 <span class="preprocessor"></span>
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<a name="l00216"></a>00216   <span class="keywordflow">return</span> fd0;
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<a name="l00217"></a>00217 
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<a name="l00218"></a>00218 error_close:
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<a name="l00219"></a>00219   <a class="code" href="can__socket_8c.html#9b4deca58f52eefbbde4f8accefd154d">CAN_CLOSE</a> (*(<span class="keywordtype">int</span> *) fd0);
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<a name="l00220"></a>00220 
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<a name="l00221"></a>00221 error_ret:
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<a name="l00222"></a>00222   free (fd0);
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<a name="l00223"></a>00223   <span class="keywordflow">return</span> NULL;
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<a name="l00224"></a>00224 }
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<a name="l00225"></a>00225 
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<a name="l00226"></a>00226 <span class="comment">/***************************************************************************/</span>
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<a name="l00227"></a>00227 <span class="keywordtype">int</span>
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<a name="l00228"></a><a class="code" href="can__socket_8c.html#d2f4803f3a623c82a4c3e92d4e75e5a5">00228</a> <a class="code" href="can__lincan_8c.html#d2f4803f3a623c82a4c3e92d4e75e5a5">canClose_driver</a> (<a class="code" href="unix_2applicfg_8h.html#324227f7b01d51ee83a883174769ac8f">CAN_HANDLE</a> fd0)
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<a name="l00229"></a>00229 {
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<a name="l00230"></a>00230   <span class="keywordflow">if</span> (fd0)
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<a name="l00231"></a>00231     {
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<a name="l00232"></a>00232       <a class="code" href="can__socket_8c.html#9b4deca58f52eefbbde4f8accefd154d">CAN_CLOSE</a> (*(<span class="keywordtype">int</span> *) fd0);
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<a name="l00233"></a>00233       free (fd0);
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<a name="l00234"></a>00234     }
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<a name="l00235"></a>00235   <span class="keywordflow">return</span> 0;
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<a name="l00236"></a>00236 }
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Jul 2 19:10:16 2007 for CanFestival by&nbsp;
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<a href="http://www.doxygen.org/index.html">
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.1 </small></address>
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</body>
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