174 lines
4.0 KiB
HTML
174 lines
4.0 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>hstrerror--Retrieve Resolver Error Message API</title>
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<!-- Begin Header Records ========================================== -->
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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<!-- RPCMST SCRIPT A converted by B2H R4.1 (346) (CMS) by PMHALL at -->
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<!-- RCHVMW2 on 7 Oct 1998 at 23:43:14 -->
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<!-- Edited by Kersten Feb 02 -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<!-- End Header Records -->
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<!--Java sync-link-->
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<script type="text/javascript" language="Javascript" src="../rzahg/synch.js">
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</script>
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<h2>hstrerror()--Retrieve Resolver Error Message</h2>
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<div class="box" style="width: 60%;">
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<br>
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Syntax<br>
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<pre>
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/nameser.h>
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#include <resolv.h>
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char* hstrerror(int <em>h_error_value</em>);
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</pre>
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<br>
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Service Program Name: QSOSRV2<br>
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<!-- iddvc RMBR -->
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<br>
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Default Public Authority: *USE<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: Yes<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The <strong>hstrerror()</strong> function is used to retrieve the text
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string that describes a resolver <em>h_errno</em> value.</p>
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<br>
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<h3>Parameters</h3>
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<dl>
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<dt><strong>h_error_value</strong> (Input) </dt>
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<dd>The <em>h_errno</em> received from a resolver API.</dd>
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</dl>
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<br>
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<h3>Return Value</h3>
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<p>The <strong>hstrerror()</strong> API returns a pointer to the error
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text.</p>
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<br>
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<h3>Authorities:</h3>
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<p>No authorization is required.</p>
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<br>
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<h3>Error Conditions</h3>
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<p>None</p>
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<br>
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<h3>Usage Notes</h3>
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<ol>
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<li>If the <em>h_error_value</em> is out of range or not found, "Unknown
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resolver error" will be returned.</li>
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</ol>
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<br>
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<h3>Related Information</h3>
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<ul>
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<li><a href="resfindzonecut.htm">res_findzonecut()</a>--Find the Enclosing Zone and
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Servers<br>
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<br>
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</li>
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<li><a href="reshostalias.htm">res_hostalias()</a>--Retrieve the host alias<br>
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<br>
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</li>
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<li><a href="resninit.htm">res_ninit()</a>--Initialize res Structure<br>
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<br>
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</li>
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<li><a href="resnclose.htm">res_nclose()</a>--Close Socket and Reset res
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Structure<br>
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<br>
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</li>
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<li><a href="resnmkquery.htm">res_nmkquery()</a>--Place Domain Query in
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Buffer<br>
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<br>
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</li>
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<li><a href="resnmkupdate.htm">res_nmkupdate()</a>--Construct an Update
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Packet<br>
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<br>
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</li>
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<li><a href="resnquery.htm">res_nquery()</a>--Send Domain Query<br>
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<br>
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</li>
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<li><a href="resnsearch.htm">res_nsearch()</a>--Search for Domain Name<br>
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<br>
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</li>
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<li><a href="resnsend.htm">res_nsend()</a>--Send Buffered Domain Query<br>
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<br>
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</li>
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<li><a href="resnsendsigned.htm">res_nsendsigned()</a>--Send Authenticated Domain
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Query<br>
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<br>
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</li>
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<li><a href="resnupdate.htm">res_nupdate()</a>--Build and Send Dynamic
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Updates<br>
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<br>
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</li>
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<li><a href="resxlt.htm">res_xlate()</a>--Translate DNS Packets</li>
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</ul>
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<br>
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<h3>Example</h3>
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<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
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for information pertaining to code examples.</p>
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<p>See <a href="resninit.htm">res_ninit()</a> for an example of how
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<em>hstrerror()</em> is used.</p>
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<br>
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<hr>
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API introduced: V5R1
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
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"unix.htm">UNIX-Type APIs</a> | <a href="aplist.htm">APIs by category</a> </td>
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</tr>
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</table>
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</center>
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</body>
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</html>
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