161 lines
4.6 KiB
HTML
161 lines
4.6 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>Qp0zInitEnv()--Initialize Environment for Variables</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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<!-- Direct1 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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<!-- This file has undergone html cleanup on 04/29/02 by JET -->
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<!-- End Header Records -->
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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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<!-- Java sync-link -->
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<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
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</script>
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<a name="Top_Of_Page"></a>
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<h2>Qp0zInitEnv()--Initialize Environment for Variables</h2>
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<div class="box" style="width: 60%;">
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<br>
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Syntax
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<pre>
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#include <qp0z1170.h>
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int Qp0zInitEnv(void);;
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</pre>
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Service Program Name: QP0ZCPA<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>Qp0zInitEnv()</strong> function sets the external variable
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<samp>environ</samp> to a pointer to the current environment list. (On the
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iSeries server, <samp>environ</samp> is initialized to NULL when an activation
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group is started.)</p>
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<p><strong>Note:</strong> Although it is possible for a user's program to
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directly read the <samp>environ</samp> array, use of the <strong>
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getenv()</strong> or <strong>Qp0zGetEnv()</strong> functions is
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recommended.<br>
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</p>
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<br>
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<!-- Please NOTE: DO NOT DELETE THIS SECTION if this API has no authorities and locks. -->
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<!-- Instead, use the commented out coding below to indicate NONE. -->
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<h3>Authorities and Locks</h3>
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<!-- Use this if there are no authorities and locks. -->
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<p>None.</p>
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<br>
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<h3>Parameters</h3>
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<p>None.</p>
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<br>
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<h3>Return Value</h3>
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<table cellpadding="5">
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<!-- cols="5 95" -->
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<tr>
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<td align="left" valign="top"><em>0</em></td>
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<td align="left" valign="top"><strong>Qp0zInitEnv()</strong> successfully
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initialized the environment.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>-1</em></td>
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<td align="left" valign="top"><strong>Qp0zInitEnv()</strong> was not
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successful. The <em>errno</em> variable is set to indicate the error.</td>
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</tr>
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</table>
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<br>
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<br>
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<h3>Error Conditions</h3>
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<p>If <strong>Qp0zInitEnv()</strong> is not successful, <em>errno</em>
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indicates the following error.</p>
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<dl compact>
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<dt><em>[EUNKNOWN]</em></dt>
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<dd>
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<p>Unknown system state.</p>
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<p>The operation failed because of an unknown system state. See any messages in
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the job log and correct any errors that are indicated, then retry the
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operation.</p>
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</dd>
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</dl>
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<br>
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<h3>Related Information</h3>
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<ul>
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<li>The <<strong>qp0z1170.h</strong>> file (see <a href="unix13.htm">
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Header Files for UNIX-Type Functions</a>)</li>
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<li><a href="evgetenv.htm">getenv()</a>--Get Value of Environment Variable</li>
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<li><a href="evputenv.htm">putenv()</a>--Change or Add Environment
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Variable</li>
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<li><a href="evdltenv.htm">Qp0zDltEnv()</a>--Delete an Environment
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Variable</li>
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<li><a href="evdltsev.htm">Qp0zDltSysEnv()</a>--Delete a System-Level
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Environment Variable</li>
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<li><a href="evgetall.htm">Qp0zGetAllSysEnv()</a>--Get All System-Level
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Environment Variables</li>
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<li><a href="evgenvxt.htm">Qp0zGetEnv()</a>--Get Value of Environment Variable
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(Extended)</li>
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<li><a href="evgetsev.htm">Qp0zGetSysEnv()</a>--Get Value of System-Level
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Environment Variable</li>
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<li><a href="evpenvxt.htm">Qp0zPutEnv()</a>--Change or Add Environment Variable
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(Extended)</li>
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<li><a href="evputsev.htm">Qp0zPutSysEnv()</a>--Change or Add a System-Level
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Environment</li>
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</ul>
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<br>
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<hr>
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API introduced: V3R6
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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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