lwres_inetntop.html revision 4abdfc917e6635a7c81d1f931a0c79227e72d025
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<title>lwres_inetntop</title>
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<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">
<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="id2543376"></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="id2543408"></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="id2543441"></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>
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