161 lines
5.3 KiB
HTML
161 lines
5.3 KiB
HTML
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||
|
|
<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
|
||
|
|
<title>qsygetgroups()--Get Supplemental Group IDs</title>
|
||
|
|
<!-- Begin Header Records ========================================== -->
|
||
|
|
<!-- All rights reserved. Licensed Materials Property of IBM -->
|
||
|
|
<!-- US Government Users Restricted Rights -->
|
||
|
|
<!-- Use, duplication or disclosure restricted by -->
|
||
|
|
<!-- GSA ADP Schedule Contract with IBM Corp. -->
|
||
|
|
<!-- Unix2 SCRIPT J converted by B2H R4.1 (346) (CMS) by V2KEA304 -->
|
||
|
|
<!-- at RCHVMW2 on 17 Feb 1999 at 11:05:09 -->
|
||
|
|
<!-- This file has undergone html cleanup June 2002 by JET -->
|
||
|
|
<!-- Change History: -->
|
||
|
|
<!-- YYMMDD USERID Change description -->
|
||
|
|
<!--End Header Records -->
|
||
|
|
<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<a name="Top_Of_Page"></a>
|
||
|
|
<!-- Java sync-link -->
|
||
|
|
<script type="text/javascript" language="Javascript" src="../rzahg/synch.js">
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<h2>qsygetgroups()--Get Supplemental Group IDs</h2>
|
||
|
|
|
||
|
|
<!-- =========================================== -->
|
||
|
|
<!-- S Y N T A X / P A R M T A B L E -->
|
||
|
|
<!-- =========================================== -->
|
||
|
|
<div class="box" style="width: 80%;">
|
||
|
|
<br>
|
||
|
|
Syntax<br>
|
||
|
|
|
||
|
|
<pre>
|
||
|
|
#include <qsysetid.h>
|
||
|
|
|
||
|
|
int qsygetgroups(int <em>gidsetsize</em>, gid_t <em>grouplist</em>[])
|
||
|
|
</pre>
|
||
|
|
|
||
|
|
Service Program Name: QSYSETIDS<br>
|
||
|
|
<!-- iddvc RMBR -->
|
||
|
|
<br>
|
||
|
|
Default Public Authority: *USE<br>
|
||
|
|
<!-- iddvc RMBR -->
|
||
|
|
<br>
|
||
|
|
Threadsafe: No<br>
|
||
|
|
<!-- iddvc RMBR -->
|
||
|
|
<br>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
|
||
|
|
<!-- =========================================== -->
|
||
|
|
<!-- D E F I N I T I O N -->
|
||
|
|
<!-- =========================================== -->
|
||
|
|
<p>If the <em>gidsetsize</em> argument is zero, <strong>qsygetgroups()</strong>
|
||
|
|
returns the number of supplemental group IDs associated with the calling thread
|
||
|
|
without modifying the array pointed to by the <em>grouplist</em> argument.
|
||
|
|
Otherwise, <strong>qsygetgroups()</strong> fills in the array <em>
|
||
|
|
grouplist</em> with the supplementary group IDs of the calling thread and
|
||
|
|
returns the actual number of group IDs stored. The values of array entries with
|
||
|
|
indexes larger than or equal to the returned value are undefined.</p>
|
||
|
|
|
||
|
|
<!-- =========================================== -->
|
||
|
|
<!-- P A R A M E T E R S -->
|
||
|
|
<!-- =========================================== -->
|
||
|
|
<h3>Parameters</h3>
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><strong><em>gidsetsize</em></strong></dt>
|
||
|
|
|
||
|
|
<dd>(Input) The number of elements in the supplied array <em>
|
||
|
|
grouplist</em>.<br>
|
||
|
|
<br>
|
||
|
|
</dd>
|
||
|
|
|
||
|
|
<dt><strong><em>grouplist</em></strong></dt>
|
||
|
|
|
||
|
|
<dd>(Output) The supplementary group IDs.</dd>
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<!-- =========================================== -->
|
||
|
|
<!-- A U T H O R I T I E S A N D L O C K S -->
|
||
|
|
<!-- =========================================== -->
|
||
|
|
|
||
|
|
<h3>Authorities</h3>
|
||
|
|
|
||
|
|
<p>No authorization is required.</p>
|
||
|
|
|
||
|
|
<!-- =========================================== -->
|
||
|
|
<!-- R E T U R N V A L U E -->
|
||
|
|
<!-- =========================================== --><br>
|
||
|
|
<h3>Return Value</h3>
|
||
|
|
|
||
|
|
<table cellpadding="5">
|
||
|
|
<!-- cols="15 85" -->
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top" nowrap><em>0 or > 0</em></td>
|
||
|
|
<td align="left" valign="top"><strong>qsygetgroups()</strong> was successful.
|
||
|
|
If the <em>gidsetsize</em> argument is 0, the number of supplementary group IDs
|
||
|
|
is returned. If <em>gidsetsize</em> is greater than 0, the array <em>
|
||
|
|
grouplist</em> is filled with the supplementary group IDs of the calling thread
|
||
|
|
and the return value represents the actual number of group IDs stored.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top"><em>-1</em></td>
|
||
|
|
<td align="left" valign="top"><strong>qsygetgroups()</strong> was not
|
||
|
|
successful. The <em>errno</em> global variable is set to indicate the
|
||
|
|
error.</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<br>
|
||
|
|
<!-- =========================================== -->
|
||
|
|
<!-- E R R O R C O N D I T I O N S -->
|
||
|
|
<!-- =========================================== -->
|
||
|
|
|
||
|
|
<h3>Error Conditions</h3>
|
||
|
|
|
||
|
|
<p>If <strong>qsygetgroups()</strong> is not successful, <em>errno</em> usually
|
||
|
|
indicates one of the following errors. Under some conditions, <em>errno</em>
|
||
|
|
could indicate an error other than those listed here.</p>
|
||
|
|
|
||
|
|
<table cellpadding="5">
|
||
|
|
<!-- cols="25 75" -->
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<th align="left" valign="bottom">Error condition</th>
|
||
|
|
<th align="left" valign="bottom">Additional information</th>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top">
|
||
|
|
<em>[<a href="unix14.htm#EINVAL">EINVAL</a>]</em></td>
|
||
|
|
|
||
|
|
<td align="left" valign="top">The <em>gidsetsize</em> argument is not equal to zero and is less than the
|
||
|
|
number of group IDs.</td></tr>
|
||
|
|
</table>
|
||
|
|
<br>
|
||
|
|
<!-- =========================================== -->
|
||
|
|
<!-- -->
|
||
|
|
<!-- =========================================== --><br>
|
||
|
|
<hr>
|
||
|
|
API introduced: V5R2
|
||
|
|
|
||
|
|
<hr>
|
||
|
|
<center>
|
||
|
|
<table cellpadding="2" cellspacing="2">
|
||
|
|
<tr align="center">
|
||
|
|
<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
|
||
|
|
"unix.htm">UNIX-Type APIs</a> | <a href="aplist.htm">APIs by category</a></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</center>
|
||
|
|
</body>
|
||
|
|
</html>
|
||
|
|
|