<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>libnl: /home/tgraf/dev/libnl/src/nl-link-ifindex2name.c Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
$(document).ready(initResizable);
</script>
<link href="libnl.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td style="padding-left: 0.5em;">
<div id="projectname">libnl
 <span id="projectnumber">3.2.21</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.1.1 -->
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main Page</span></a></li>
<li><a href="pages.html"><span>Related Pages</span></a></li>
<li><a href="modules.html"><span>Modules</span></a></li>
<li><a href="annotated.html"><span>Data Structures</span></a></li>
</ul>
</div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
$(document).ready(function(){initNavTree('nl-link-ifindex2name_8c.html','');});
</script>
<div id="doc-content">
<div class="header">
<div class="headertitle">
<div class="title">nl-link-ifindex2name.c</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * src/nl-link-ifindex2name.c Transform a interface index to its name</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * This library is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * License as published by the Free Software Foundation version 2.1</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * of the License.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch></span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <netlink/cli/utils.h></span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <netlink/cli/link.h></span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">static</span> <span class="keywordtype">void</span> print_usage(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> {</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  printf(<span class="stringliteral">"Usage: nl-link-ifindex2name <ifindex>\n"</span>);</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  exit(0);</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> }</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[])</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> {</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keyword">struct </span>nl_sock *sock;</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">struct </span>nl_cache *link_cache;</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordtype">char</span> name[IFNAMSIZ];</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  uint32_t ifindex;</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keywordflow">if</span> (argc < 2)</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  print_usage();</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  sock = nl_cli_alloc_socket();</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  nl_cli_connect(sock, NETLINK_ROUTE);</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  link_cache = nl_cli_link_alloc_cache(sock);</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  ifindex = <a class="code" href="group__cli.html#gaab66b72df11e32668df817475683b139" title="Parse a text based 32 bit unsigned integer argument.">nl_cli_parse_u32</a>(argv[1]);</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">if</span> (!<a class="code" href="group__link.html#ga66328cb096fb4d21499775e75089109d" title="Translate interface index to corresponding link name.">rtnl_link_i2name</a>(link_cache, ifindex, name, <span class="keyword">sizeof</span>(name)))</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <a class="code" href="group__cli.html#ga6eb1ac48798f073c336d918eaa88e34c" title="Print error message and quit application.">nl_cli_fatal</a>(ENOENT, <span class="stringliteral">"Interface index %d does not exist"</span>,</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  ifindex);</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  printf(<span class="stringliteral">"%s\n"</span>, name);</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> }</div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><b>nl-link-ifindex2name.c</b></li>
<li class="footer">Generated on Thu Jan 24 2013 14:39:29 for libnl by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.1.1 </li>
</ul>
</div>
</body>
</html>
