233 lines
7.3 KiB
HTML
233 lines
7.3 KiB
HTML
<!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>qsysetgroups()--Set Supplemental Group IDs</title>
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<!-- Begin Header Records ========================================== -->
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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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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<!-- This file has undergone html cleanup June 2002 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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<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>qsysetgroups()--Set Supplemental Group IDs</h2>
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<!-- =========================================== -->
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<!-- S Y N T A X / P A R M T A B L E -->
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<!-- =========================================== -->
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<div class="box" style="width: 80%;">
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<br>
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Syntax<br>
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<pre>
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#include <qsysetid.h>
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int qsysetgroups(int <em>gidsetsize</em>, gid_t <em>grouplist</em>[])
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</pre>
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Service Program Name: QSYSETIDS<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: No<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<!-- =========================================== -->
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<!-- D E F I N I T I O N -->
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<!-- =========================================== -->
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<p>The qsysetgroups API sets the supplementary group IDs of the calling thread.
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The qsysetgroups API cannot set more than (NGROUPS_MAX-1) groups in the group
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set.</p>
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<img src="delta.gif" alt="Start of change">
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<p> The real group
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ID, effective group ID and saved group ID remain unchanged.</p>
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<p>Job scoped locks with a lock state of *SHRRD are held on the user profiles
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associated with the real user ID, effective user ID, saved user ID, real group
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ID, effective group ID, saved group ID, and all of the supplemental groups.</p>
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<img src="deltaend.gif" alt="End of change">
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<br>
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<!-- =========================================== -->
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<!-- P A R A M E T E R S -->
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<!-- ==========================================
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= -->
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<h3>Parameters</h3>
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<dl><!-- Parameter 1 -->
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<dt><strong><em>gidsetsize</em></strong></dt>
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<dd>(Input) The number of elements in the supplied array <em>grouplist</em>.
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<img src="delta.gif" alt="Start of change">
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If the number of elements is specified as 0,
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the current supplementary groups will be removed.
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<img src="deltaend.gif" alt="End of change">
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<!-- Parameter 2 --><br>
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<br>
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</dd>
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<dt><strong><em>grouplist</em></strong></dt>
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<dd>(Input) The supplementary group IDs.</dd>
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</dl>
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<br>
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<!-- =========================================== -->
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<!-- A U T H O R I T I E S A N D L O C K S -->
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<!-- =========================================== -->
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<h3>Authorities and locks</h3>
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<!-- auth / lock 1 -->
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<dl>
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<dt><strong>User profile associated with <em>gid</em> Authority</strong></dt>
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<dd>*USE authority is required to the user profile associated with each <em>gid</em>
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in the group list if the <em>gid</em> is not equal to the current
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thread's real, effective, or saved group IDs or one of the groups in the
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current thread's supplemental group list.
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<!-- auth / lock 2 --><br>
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<br>
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</dd>
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<dt><strong>User profile associated with each <em>gid</em> Lock</strong></dt>
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<dd>*SHRRD</dd>
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</dl>
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<br>
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<!-- =========================================== -->
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<!-- R E T U R N V A L U E -->
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<!-- =========================================== -->
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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>qsysetgroups()</strong> was
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successful.</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>qsysetgroups()</strong> was not
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successful. The <em>errno</em> global variable is set to indicate the
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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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<!-- =========================================== -->
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<!-- E R R O R C O N D I T I O N S -->
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<!-- =========================================== -->
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<h3>Error Conditions</h3>
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<p>If <strong>qsysetgroups()</strong> is not successful, <em>errno</em> usually
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indicates one of the following errors. Under some conditions, <em>errno</em>
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could indicate an error other than those listed here.</p>
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<table cellpadding="5">
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<!-- cols="25 75" -->
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<tr>
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<th align="left" valign="bottom">Error condition</th>
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<th align="left" valign="bottom">Additional information</th>
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</tr>
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<tr>
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<td align="left" valign="top">
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<em>[<a href="unix14.htm#EAGAIN">EAGAIN</a>]</em></td>
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<td align="left" valign="top">
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<p>User profile associated with a <em>gid</em> is locked. Try again.</p>
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</td></tr>
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<tr><td align="left" valign="top"><em>[<a href="unix14.htm#EDAMAGE">EDAMAGE</a>]</em></td>
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<td align="left" valign="top">
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<p>The user profile associated with a <em>gid</em> or an internal system object is
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damaged.</p>
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</td></tr>
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<tr>
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<td align="left" valign="top">
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<em>[<a href="unix14.htm#EINVAL">EINVAL</a>]</em></td>
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<td align="left" valign="top">
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<p>One of the GID values in the <em>grouplist</em> argument is not valid.
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Following are possible reasons:</p>
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<ul compact>
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<li>Out of range.</li>
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<li>Not associated with a user profile.</li>
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<li>gidsetsize too large.</li>
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</ul>
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</td>
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</tr>
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<tr><td align="left" valign="top"><em>[<a href="unix14.htm#ENOTSUP">ENOTSUP</a>]</em></td>
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<td align="left" valign="top">
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<p>Operation not supported. The current effective user profile specifies
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OWNER(*GRPPRF), but the user's first group is not equal to the current
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effective group profile and the user's first group is not in this list of
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supplemental groups.</p>
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</td></tr>
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<tr><td align="left" valign="top"><em>[<a href="unix14.htm#EPERM">EPERM</a>]</em></td>
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<td align="left" valign="top">
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<p>Operation not permitted. Following are possible reasons:</p>
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<ul>
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<li>The thread does not have *USE authority to the user profile associated with
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the <em>GID</em> and the <em>GID</em> to be set is not the same as the real,
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effective, saved group IDs or any of the supplemental groups.</li>
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<li>Supplemental groups cannot be set if effective GID is 0.</li>
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</ul>
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</td></tr>
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<tr><td align="left" valign="top"><em>[<a href="unix14.htm#EUNKNOWN">EUNKNOWN</a>]</em></td>
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<td align="left" valign="top">
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<p>An unknown error has occurred. Check the joblog for error messages.</p>
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</td></tr>
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</table>
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<br>
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<!-- =========================================== -->
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<!-- R E L A T E D I N F O R M A T I O N -->
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<!-- =========================================== --><br>
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<hr>
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API introduced: V5R2
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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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