ibm-information-center/dist/eclipse/plugins/i5OS.ic.apis_5.4.0.1/snetnt.htm

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<title>setnetent()--Open Network Database</title>
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<h2>setnetent()--Open Network Database</h2>
<div class="box" style="width: 60%;">
<br>
&nbsp;&nbsp;Syntax<br>
<pre>
#include &lt;netdb.h&gt;
void setnetent(int <em>stay_open</em>)
</pre>
<br>
&nbsp;&nbsp;Service Program Name: QSOSRV2<br>
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&nbsp;&nbsp;Default Public Authority: *USE<br>
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&nbsp;&nbsp;Threadsafe: No; see <a href="#USAGE_NOTES">Usage Notes</a>.<br>
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<p>The <em>setnetent()</em> function is used to prepare for sequential access
to the network database file. <em>setnetent()</em> opens the file and
repositions the file marker to the beginning of the file.</p>
<br>
<h3>Parameters</h3>
<dl>
<dt><strong>stay_open</strong></dt>
<dd>(Input) A value that indicates whether to leave the database file open
after each <em>getnetbyname()</em> and <em>getnetbyaddr()</em>. A nonzero value
will result in the database file being left open.</dd>
</dl>
<br>
<h3>Authorities</h3>
<p>No authorization is required.</p>
<br>
<h3><a name="USAGE_NOTES">Usage Notes</a></h3>
<ol>
<li>The iSeries Navigator or the following CL commands can be
used to access the network database file:<br><br>
<ul>
<li>WRKNETTBLE (Work with Network Table Entries)</li>
<li>ADDNETTBLE (Add Network Table Entry)</li>
<li>RMVNETTBLE (Remove Network Table Entry)</li>
</ul>
<br>
</li>
<li>Do not use the <em>setnetent()</em> function in a multithreaded
environment. See the multithread alternative <em>setnetent_r()</em>
function.<br>
<br>
</li>
<li>When you develop in C-based languages and an application is compiled with the _XOPEN_SOURCE
macro defined to the value 520 or greater, the <em>setnetent()</em> API is mapped to
<em>qso_setnetent98()</em>.</li>
</ol>
<br>
<h3>Related Information</h3>
<ul>
<li><a href="_xopen_source.htm">_XOPEN_SOURCE</a>--Using _XOPEN_SOURCE for the UNIX 98
compatible interface<br>
<br>
</li>
<li><a href="gnetadr.htm">getnetbyaddr()</a>--Get Network Information for IP
Address<br>
<br>
</li>
<li><a href="gnetnm.htm">getnetbyname()</a>--Get Network Information for Domain
Name<br>
<br>
</li>
<li><a href="gnetnt.htm">getnetent()</a>--Get Next Entry from Network
Database<br>
<br>
</li>
<li><a href="enetnt.htm">endnetent()</a>--Close Network Database</li>
</ul>
<br>
<hr>
API introduced: V4R2
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