348 lines
8.9 KiB
HTML
348 lines
8.9 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>QlgGetpwuid_r()--Get User Information for User ID (using NLS-enabled
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path name)</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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<!-- file cleaned -->
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<!-- Created for V5R1-->
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<!-- This file has undergone html cleanup June 2002 by JET -->
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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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<!-- End Header Records --><!--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>QlgGetpwuid_r()--Get User Information for User ID (using NLS-enabled path
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name)</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 <sys/types.h>
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#include <pwd.h>
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int QlgGetpwuid_r(uid_t <em>uid</em>,
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struct qplg_passwd <em>*pwd</em>,
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char <em>*buffer</em>,
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size_t <em>bufsize</em>,
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struct qplg_passwd <em>**result</em>);
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</pre>
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Service Program Name: QSYPAPI<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>QlgGetpwuid_r()</strong> function updates the <em>
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qplg_passwd</em> structure pointed to by <em>pwd</em> and stores a pointer to
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that structure in the location pointed to by <em>result</em>. The structure
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contains an entry from the user database with a matching <em>UID</em>.</p>
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<br>
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<h3>Parameters</h3>
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<dl>
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<dt><strong><em>UID</em></strong></dt>
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<dd>(Input) A pointer to a user ID.<br>
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</dd>
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<dt><strong><em>pwd</em></strong></dt>
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<dd>(Input) A pointer to a struct qplg_passwd.<br>
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</dd>
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<dt><strong><em>buffer</em></strong></dt>
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<dd>(Input) A pointer to a buffer from which memory is allocated to hold
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storage areas referenced by the structure qplg_passwd.<br>
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</dd>
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<dt><strong><em>bufsize</em></strong></dt>
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<dd>(Input) The size of <em>buffer</em> in bytes.<br>
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</dd>
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<dt><strong><em>result</em></strong></dt>
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<dd>(Input) A pointer to a location in which a pointer to the updated
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qplg_passwd structure is stored. If an error occurs or if the requested entry
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cannot be found, a NULL pointer is stored in this location.<br>
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</dd>
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</dl>
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<p>The <samp>struct qplg_passwd</samp>, which is defined in the <strong>
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pwd.h</strong> header file, has the following elements:</p>
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<table border width="100%">
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<tr>
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<td align="left" valign="top" width="25%">char *</td>
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<td align="left" valign="top" width="20%">pw_name</td>
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<td align="left" valign="top" width="55%">User name</td>
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</tr>
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<tr>
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<td align="left" valign="top">uid_t</td>
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<td align="left" valign="top">pw_uid</td>
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<td align="left" valign="top">User ID</td>
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</tr>
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<tr>
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<td align="left" valign="top">uid_t</td>
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<td align="left" valign="top">pw_gid</td>
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<td align="left" valign="top">Group ID</td>
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</tr>
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<tr>
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<td align="left" valign="top">Qlg_Path_Name_T</td>
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<td align="left" valign="top">pw_dir</td>
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<td align="left" valign="top">Initial working directory</td>
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</tr>
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<tr>
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<td align="left" valign="top">char *</td>
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<td align="left" valign="top">pw_shell</td>
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<td align="left" valign="top">Initial user program</td>
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</tr>
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</table>
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<p>See <a href="gtpwuidr.htm">getpwuid_r()--Get User Information for User
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ID</a> for more on the <em>pwd</em>, <em>result</em> and other parameters.</p>
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<br>
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<h3>Authorities</h3>
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<p>*READ authority is required to the user profile associated with the <em>
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UID</em>.</p>
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<br>
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<h3>Return Value</h3>
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<dl>
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<dt><em>0</em></dt>
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<dd><strong>QlgGetpwuid_r()</strong> was successful.<br>
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<br>
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</dd>
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<dt><em>Any other value</em></dt>
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<dd>Failure: The return value contains an error number indicating the
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error.</dd>
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</dl>
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<br>
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<h3>Error Conditions</h3>
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<p>If <strong>QlgGetpwuid_r()</strong> is not successful, the error value
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usually indicates one of the following errors. Under some conditions, the value
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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>The user profile associated with the <em>uid</em> is currently locked by
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another process.</p>
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</td>
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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#EC2">EC2</a>]</em></td>
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<td align="left" valign="top">
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<p>Detected pointer that is not valid.</p>
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</td>
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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#EINVAL">EINVAL</a>]</em></td>
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<td align="left" valign="top">
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<p>Value is not valid. Check the job log for messages.</p>
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</td>
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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#ENOENT">ENOENT</a>]</em></td>
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<td align="left" valign="top">
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<p>The user profile associated with <em>UID</em> was not found.</p>
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</td>
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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#ENOMEM">ENOMEM</a>]</em></td>
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<td align="left" valign="top">
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<p>The user profile associated with the <em>UID</em> has exceeded its storage
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limit or is unable to allocate memory.</p>
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</td>
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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#ENOSPC">ENOSPC</a>]</em></td>
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<td align="left" valign="top">
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<p>Machine storage limit exceeded.</p>
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</td>
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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#EPERM">EPERM</a>]</em></td>
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<td align="left" valign="top">
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<p>The calling job does not have *READ authority to the user profile
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associated with the <em>UID</em>.</p>
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</td>
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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#ERANGE">ERANGE</a>]</em></td>
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<td align="left" valign="top">
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<p>Insufficient storage was supplied through <em>buffer</em> and <em>
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bufsize</em> to contain the data to be referenced by the resulting group
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structure.</p>
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</td>
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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#EUNKNOWN">EUNKNOWN</a>]</em></td>
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<td align="left" valign="top">
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<p>Unknown system state. Check the job log for a CPF9872 message. If there is
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no message, verify that the home directory field in the user profile can be
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displayed.</p>
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</td>
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</tr>
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</table>
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<br>
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<h3>Usage Notes</h3>
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<p>The path name is returned in the default IFS UNICODE CCSID.</p>
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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>pwd.h</strong>> file (see <a href="unix13.htm">Header
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Files for UNIX-Type Functions</a>)
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<br>
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</li>
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<li><a href="getpwuid.htm">getpwuid()</a>--Get User Information for User ID<br>
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</li>
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<li><a href="gtpwuidr.htm">getpwuid_r()</a>--Get User Information for User
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ID<br>
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</li>
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<li><a href="getpwuidu.htm">QlgGetpwuid()</a>--Get User Information for User ID
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(using NLS-enabled path name)</li>
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</ul>
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<br>
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<h3>Example</h3>
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<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
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for information pertaining to code examples.</p>
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<p>The following example gets the user database information for the uid of 22.
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The user name is MYUSER. The GID is 1012. The intial working directory is
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/home/MYUSER. The initial user program is *LIBL/QCMD.</p>
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<pre>
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#include <sys/types.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <errno.h>
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main()
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{
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struct qplg_passwd pd;
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passwd ** tempPwdPtr;
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char pwdbuffer[200];
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int pwdlinelen = sizeof(pwdbuffer);
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if ((QlgGetpwuid_r(22,&pd,pwdbuffer,pwdlinelen,tempPwdPtr))!=0)
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perror("QlgGetpwuid_r() error.");
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else
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{
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printf("\nThe user name is: %s\n", pd->pw_name);
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printf("The user id is: %u\n", pd->pw_uid);
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printf("The group id is: %u\n", pd->pw_gid);
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printf("The initial working directory length is: %d\n",
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pd->pw_dir->Path_Length);
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printf("The initial working directory CCSID is : %d\n",
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pd->pw_dir->CCSID);
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printf("The initial user program is: %s\n", pd->pw_shell);
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}
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}
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</pre>
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<p><strong>Output:</strong></p>
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<pre>
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The user name is: MYUSER
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The user ID is: 22
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The group ID is: 0
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The initial working directory length is: 24
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The initial working directory CCSID is : 13488
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The initial user program is: *LIBL/QCMD
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</pre>
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<hr>
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API introduced: V5R1
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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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