160 lines
4.3 KiB
HTML
160 lines
4.3 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>setprotoent_r()--Open Protocol Database</title>
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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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<!-- Begin Header Records ========================================== -->
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<!-- Unix8 SCRIPT J converted by B2H R4.1 (346) (CMS) by V2KEA304 -->
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<!-- at RCHVMW2 on 17 Feb 1999 at 11:05:09 -->
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<!--End Header Records -->
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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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<a name="Top_Of_Page"></a>
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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>setprotoent_r()--Open Protocol Database</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 <netdb.h>
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int setprotoent_r(int <em>stay_open</em>,
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struct protoent_data *<em>protoent_data_struct_addr</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 <em>setprotoent_r()</em> function is used in preparation for sequential
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access to the protocol database file. The <em>setprotoent_r()</em> function
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opens the file and repositions the file marker to the beginning of the
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file.</p>
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<br>
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<h3>Parameters</h3>
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<dl>
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<dt>int <strong>stay_open</strong> (input) </dt>
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<dd>Specifies whether to leave the database file open after each call to
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<em>getprotobynumber_r()</em> and <em>getprotobyname_r()</em>. A non-zero value
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will result in the database file being left open.<br>
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<br>
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</dd>
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<dt>struct protoent_data *<strong>protoent_data_struct_addr</strong>
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(input/output) </dt>
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<dd>Specifies the pointer to the protoent_data structure, which is used to pass
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and preserve results between function calls. The field proto_control_blk in the
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protoent_data structure must be initialized with hexadecimal zeros before its
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initial use. If compatibility with other platforms is required, then the entire
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protoent_data structure must be initialized with hexadecimal zeros before
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initial use.</dd>
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</dl>
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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>Return Value</h3>
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<p>The <em>setprotoent_r()</em> returns an integer. Possible values are:</p>
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<ul>
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<li>-1 (unsuccessful call)</li>
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<li>0 (successful call)</li>
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</ul>
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<p>The <strong>struct protoent_data</strong> denoted by
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<strong><em>protoent_data_struct_addr</em></strong> is defined in
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<strong><netdb.h></strong>.</p>
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<br>
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<h3>Error Conditions</h3>
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<p>When the <em>setprotoent_r()</em> function fails, <em>errno</em> can be set
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to:</p>
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<dl>
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<dt><em>[EINVAL]</em></dt>
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<dd><p>The protoent_data structure was not properly initialized with hexadecimal zeros before
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initial use. For corrective action, see the description for structure protoent_data.</p></dd>
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</dl>
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<br>
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<h3>Usage Notes</h3>
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<p>The iSeries Navigator or the following CL commands can be
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used to access the protocol database file:</p>
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<ul>
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<li>WRKPCLTBLE (Work with Protocol Table Entries)</li>
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<li>ADDPCLTBLE (Add Protocol Table Entry)</li>
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<li>RMVPCLTBLE (Remove Protocol Table Entry)</li>
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</ul>
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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="tsgprotd.htm">getprotobynumber_r()-</a>-Get Protocol<br>
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<br>
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</li>
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<li><a href="tsgprotn.htm">getprotobyname_r()</a>--Get Protocol Information for
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Protocol Name<br>
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<br>
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</li>
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<li><a href="tseprote.htm">endprotoent_r()</a>--Close Protocol Database<br>
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<br>
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</li>
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<li><a href="tsgprote.htm">getprotoent_r()</a>--Get Next Entry from Protocol
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Database</li>
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</ul>
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<br>
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<hr>
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API introduced: V4R2
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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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