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24 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en">
25 <a name="id2476275"></a><div class="titlepage"></div>
26 <div class="refnamediv">
28 <p>lwres_herror, lwres_hstrerror — lightweight resolver error message generation</p>
30 <div class="refsynopsisdiv">
32 <div class="funcsynopsis">
33 <pre class="funcsynopsisinfo">#include <lwres/netdb.h></pre>
34 <table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" style="padding-bottom: 1em"><tr>
35 <td><code class="funcdef">
37 <b class="fsfunc">lwres_herror</b>(</code></td>
38 <td>const char * </td>
40 <var class="pdparam">s</var><code>)</code>;</td>
42 <table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr>
43 <td><code class="funcdef">
45 <b class="fsfunc">lwres_hstrerror</b>(</code></td>
48 <var class="pdparam">err</var><code>)</code>;</td>
52 <div class="refsect1" lang="en">
53 <a name="id2543379"></a><h2>DESCRIPTION</h2>
54 <p><code class="function">lwres_herror()</code>
55 prints the string <em class="parameter"><code>s</code></em> on
56 <span class="type">stderr</span> followed by the string generated by
57 <code class="function">lwres_hstrerror()</code> for the error code stored
58 in the global variable <code class="constant">lwres_h_errno</code>.
60 <p><code class="function">lwres_hstrerror()</code>
61 returns an appropriate string for the error code gievn by
62 <em class="parameter"><code>err</code></em>. The values of the error codes and
63 messages are as follows:
66 <div class="variablelist"><dl>
67 <dt><span class="term"><span class="errorcode">NETDB_SUCCESS</span></span></dt>
68 <dd><p><span class="errorname">Resolver Error 0 (no error)</span>
70 <dt><span class="term"><span class="errorcode">HOST_NOT_FOUND</span></span></dt>
71 <dd><p><span class="errorname">Unknown host</span>
73 <dt><span class="term"><span class="errorcode">TRY_AGAIN</span></span></dt>
74 <dd><p><span class="errorname">Host name lookup failure</span>
76 <dt><span class="term"><span class="errorcode">NO_RECOVERY</span></span></dt>
77 <dd><p><span class="errorname">Unknown server error</span>
79 <dt><span class="term"><span class="errorcode">NO_DATA</span></span></dt>
80 <dd><p><span class="errorname">No address associated with name</span>
86 <div class="refsect1" lang="en">
87 <a name="id2543497"></a><h2>RETURN VALUES</h2>
89 The string <span class="errorname">Unknown resolver error</span> is returned by
90 <code class="function">lwres_hstrerror()</code>
92 <code class="constant">lwres_h_errno</code>
93 is not a valid error code.
96 <div class="refsect1" lang="en">
97 <a name="id2543517"></a><h2>SEE ALSO</h2>
98 <p><span class="citerefentry"><span class="refentrytitle">herror</span>(3)</span>,
100 <span class="citerefentry"><span class="refentrytitle">lwres_hstrerror</span>(3)</span>.