105 lines
4.2 KiB
HTML
105 lines
4.2 KiB
HTML
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<!-- $Id: lwres_hstrerror.html,v 1.23.418.1 2009/07/11 01:55:21 tbox Exp $ -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>lwres_hstrerror</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.71.1">
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</head>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en">
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<a name="id2476275"></a><div class="titlepage"></div>
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<div class="refnamediv">
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<h2>Name</h2>
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<p>lwres_herror, lwres_hstrerror — lightweight resolver error message generation</p>
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</div>
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<div class="refsynopsisdiv">
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<h2>Synopsis</h2>
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<div class="funcsynopsis">
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<pre class="funcsynopsisinfo">#include <lwres/netdb.h></pre>
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<table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" style="padding-bottom: 1em"><tr>
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<td><code class="funcdef">
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void
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<b class="fsfunc">lwres_herror</b>(</code></td>
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<td>const char * </td>
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<td>
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<var class="pdparam">s</var><code>)</code>;</td>
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</tr></table>
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<table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr>
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<td><code class="funcdef">
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const char *
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<b class="fsfunc">lwres_hstrerror</b>(</code></td>
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<td>int </td>
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<td>
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<var class="pdparam">err</var><code>)</code>;</td>
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</tr></table>
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</div>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2543379"></a><h2>DESCRIPTION</h2>
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<p><code class="function">lwres_herror()</code>
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prints the string <em class="parameter"><code>s</code></em> on
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<span class="type">stderr</span> followed by the string generated by
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<code class="function">lwres_hstrerror()</code> for the error code stored
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in the global variable <code class="constant">lwres_h_errno</code>.
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</p>
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<p><code class="function">lwres_hstrerror()</code>
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returns an appropriate string for the error code gievn by
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<em class="parameter"><code>err</code></em>. The values of the error codes and
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messages are as follows:
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</p>
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<div class="variablelist"><dl>
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<dt><span class="term"><span class="errorcode">NETDB_SUCCESS</span></span></dt>
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<dd><p><span class="errorname">Resolver Error 0 (no error)</span>
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</p></dd>
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<dt><span class="term"><span class="errorcode">HOST_NOT_FOUND</span></span></dt>
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<dd><p><span class="errorname">Unknown host</span>
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</p></dd>
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<dt><span class="term"><span class="errorcode">TRY_AGAIN</span></span></dt>
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<dd><p><span class="errorname">Host name lookup failure</span>
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</p></dd>
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<dt><span class="term"><span class="errorcode">NO_RECOVERY</span></span></dt>
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<dd><p><span class="errorname">Unknown server error</span>
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</p></dd>
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<dt><span class="term"><span class="errorcode">NO_DATA</span></span></dt>
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<dd><p><span class="errorname">No address associated with name</span>
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</p></dd>
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</dl></div>
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<p>
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</p>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2543497"></a><h2>RETURN VALUES</h2>
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<p>
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The string <span class="errorname">Unknown resolver error</span> is returned by
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<code class="function">lwres_hstrerror()</code>
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when the value of
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<code class="constant">lwres_h_errno</code>
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is not a valid error code.
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</p>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2543517"></a><h2>SEE ALSO</h2>
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<p><span class="citerefentry"><span class="refentrytitle">herror</span>(3)</span>,
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<span class="citerefentry"><span class="refentrytitle">lwres_hstrerror</span>(3)</span>.
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</p>
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</div>
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</div></body>
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</html>
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