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<!-- - Copyright (C) 2004, 2005, 2007, 2012 Internet Systems Consortium, Inc. ("ISC") - Copyright (C) 2000, 2001 Internet Software Consortium. - - Permission to use, copy, modify, and/or distribute this software for any - purpose with or without fee is hereby granted, provided that the above - copyright notice and this permission notice appear in all copies. - - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - PERFORMANCE OF THIS SOFTWARE. --> <!-- $Id$ --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>lwres_inetntop</title> <meta name="generator" content="DocBook XSL Stylesheets V1.71.1"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en"> <a name="id2476275"></a><div class="titlepage"></div> <div class="refnamediv"> <h2>Name</h2> <p>lwres_net_ntop — lightweight resolver IP address presentation</p> </div> <div class="refsynopsisdiv"> <h2>Synopsis</h2> <div class="funcsynopsis"> <pre class="funcsynopsisinfo">#include <lwres/net.h></pre> <table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"> <tr> <td><code class="funcdef"> const char * <b class="fsfunc">lwres_net_ntop</b>(</code></td> <td>int </td> <td> <var class="pdparam">af</var>, </td> </tr> <tr> <td> </td> <td>const void * </td> <td> <var class="pdparam">src</var>, </td> </tr> <tr> <td> </td> <td>char * </td> <td> <var class="pdparam">dst</var>, </td> </tr> <tr> <td> </td> <td>size_t </td> <td> <var class="pdparam">size</var><code>)</code>;</td> </tr> </table> </div> </div> <div class="refsect1" lang="en"> <a name="id2543383"></a><h2>DESCRIPTION</h2> <p><code class="function">lwres_net_ntop()</code> converts an IP address of protocol family <em class="parameter"><code>af</code></em> — IPv4 or IPv6 — at location <em class="parameter"><code>src</code></em> from network format to its conventional representation as a string. For IPv4 addresses, that string would be a dotted-decimal. An IPv6 address would be represented in colon notation as described in RFC1884. </p> <p> The generated string is copied to <em class="parameter"><code>dst</code></em> provided <em class="parameter"><code>size</code></em> indicates it is long enough to store the ASCII representation of the address. </p> </div> <div class="refsect1" lang="en"> <a name="id2543415"></a><h2>RETURN VALUES</h2> <p> If successful, the function returns <em class="parameter"><code>dst</code></em>: a pointer to a string containing the presentation format of the address. <code class="function">lwres_net_ntop()</code> returns <span class="type">NULL</span> and sets the global variable <code class="constant">errno</code> to <span class="errorcode">EAFNOSUPPORT</span> if the protocol family given in <em class="parameter"><code>af</code></em> is not supported. </p> </div> <div class="refsect1" lang="en"> <a name="id2543448"></a><h2>SEE ALSO</h2> <p><span class="citerefentry"><span class="refentrytitle">RFC1884</span></span>, <span class="citerefentry"><span class="refentrytitle">inet_ntop</span>(3)</span>, <span class="citerefentry"><span class="refentrytitle">errno</span>(3)</span>. </p> </div> </div></body> </html>