1022 lines
26 KiB
HTML
1022 lines
26 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>mkdir()--Make Directory</title>
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<!-- Begin Header Records ========================================== -->
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- Unix2 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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<!-- 010320 JTROUS Include Journal ERRNOs, should have in V5R1 -->
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<!-- 011022 JTROUS Changes from API Review 1, V5R2 -->
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<!-- 020618 EMIG: updated for NFS threadsafety, V5R3 -->
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<!-- 020719 MFENLON: updated for QFileSvr.400 threadsafety, V5R3 -->
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<!-- 020829 RTHEIS : S_ISVTX mode bit, V5R3 -->
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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>mkdir()--Make Directory</h2>
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<div class="box" style="width: 70%;">
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<br>
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Syntax<br>
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<pre>
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#include <sys/stat.h>
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int mkdir(const char <em>*path</em>, mode_t <em>mode</em>);
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</pre>
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Service Program Name: QP0LLIB1<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: Conditional; see <a href="#USAGE_NOTES">Usage Notes</a>.<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The <strong>mkdir()</strong> function creates a new, empty directory whose
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name is defined by <em>path</em>. The file permission bits in <em>mode</em> are
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modified by the file creation mask of the job and then used to set the file
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permission bits of the directory being created.</p>
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<p>For more information on the permission bits in <em>mode</em> see <a href=
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"chmod.htm">chmod()--Change File Authorizations</a>. For more information on
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the file creation mask, see <a href="umask.htm">umask()--Set Authorization Mask
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for Job</a>.</p>
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<p>The owner ID of the new directory is set to the effective user ID (uid) of
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the job. If the directory is being created in the "root" (/), QOpenSys, and
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user-defined file systems, the following applies. If the S_ISGID bit of the
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parent directory is off, the group ID (GID) is set to the effective GID of the
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thread creating the directory. If the S_ISGID bit of the parent directory is
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on, the group ID (GID) of the new directory is set to the GID of the parent
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directory. For all other file systems, the group ID (GID) of the new directory
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is set to the GID of the parent directory.</p>
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<p><strong>mkdir()</strong> sets the access, change, modification, and creation
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times for the new directory. It also sets the change and modification times for
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the directory that contains the new directory (parent directory).</p>
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<p>The link count of the parent directory link count is increased by one. The
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link count of the new directory is set to 2. The new directory also contains an
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entry for "dot" (.) and "dot-dot" (..).</p>
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<p>If <em>path</em> names a symbolic link, the symbolic link is not followed,
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and <strong>mkdir()</strong> fails with the [EEXIST] error.</p>
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<p>If bits in <em>mode</em> other than the file permission bits are set,
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<strong>mkdir()</strong> fails with the [EINVAL] error.</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>path</em></strong></dt>
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<dd>(Input) A pointer to the null-terminated path name of the directory to be
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created.
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<p>This parameter is assumed to be represented in the CCSID (coded character
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set identifier) currently in effect for the job. If the CCSID of the job is
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65535, this parameter is assumed to be represented in the default CCSID of the
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job.</p>
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<p>The name of the new directory is assumed to be represented in the language
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and country or region currently in effect for the process.</p>
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<p>See <a href="mkdiru.htm">QlgMkdir()--Make Directory</a> for a description
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and an example of supplying the <em>path</em> in any CCSID.</p>
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<br>
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</dd>
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<dt><strong><em>mode</em></strong></dt>
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<dd>(Input) Permission bits for the new directory. The
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S_ISVTX
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bit may also be specified when creating the directory.
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<p>See <a href="chmod.htm">chmod()--Change File Authorizations</a> for details
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on the values that can be specified for <em>mode</em>.</p>
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</dd>
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</dl>
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<br>
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<h3>Authorities</h3>
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<p><strong>Note:</strong> Adopted authority is not used.</p>
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<p><strong><a name="TBLAMKDIR">Authorization Required for mkdir() (excluding
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QSYS.LIB, Independent ASP QSYS.LIB, and QDLS)</a></strong></p>
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<table border>
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<tr>
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<th align="left" valign="bottom">Object Referred to</th>
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<th align="center" valign="bottom">Authority Required</th>
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<th align="left" valign="bottom">errno</th>
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</tr>
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<tr>
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<td align="left" valign="top" width="75%">Each directory in the path name
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preceding the directory to be created.</td>
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<td align="center" valign="top" width="15%">*X</td>
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<td align="left" valign="top" width="10%">EACCES</td>
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</tr>
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<tr>
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<td align="left" valign="top">Parent directory of directory to be created</td>
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<td align="center" valign="top">*WX</td>
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<td align="left" valign="top">EACCES</td>
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</tr>
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</table>
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<p><strong><a name="TBLAMKDIR2">Authorization Required for mkdir() in the
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QSYS.LIB and independent ASP QSYS.LIB File Systems</a></strong></p>
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<table border>
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<tr>
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<th align="left" valign="bottom">Object Referred to</th>
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<th align="center" valign="bottom">Authority Required</th>
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<th align="left" valign="bottom">errno</th>
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</tr>
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<tr>
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<td align="left" valign="top" width="75%">Each directory in the path name
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preceding the directory to be created.</td>
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<td align="center" valign="top" width="15%">*X</td>
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<td align="left" valign="top" width="10%">EACCES</td>
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</tr>
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<tr>
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<td align="left" valign="top">Parent directory of directory to be created (when
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the directory being created is a database file)</td>
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<td align="center" valign="top">*X and *ADD</td>
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<td align="left" valign="top">EACCES</td>
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</tr>
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</table>
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<br>
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<p><strong><a name="TBLAMKDIR3">Authorization Required for mkdir() in the QDLS
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File System</a></strong></p>
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<table border>
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<tr>
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<th align="left" valign="bottom">Object Referred to</th>
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<th align="center" valign="bottom">Authority Required</th>
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<th align="left" valign="bottom">errno</th>
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</tr>
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<tr>
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<td align="left" valign="top" width="75%">Each directory in the path name
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preceding the directory to be created.</td>
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<td align="center" valign="top" width="15%">*X</td>
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<td align="left" valign="top" width="10%">EACCES</td>
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</tr>
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<tr>
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<td align="left" valign="top">Parent directory of directory to be created</td>
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<td align="center" valign="top">*CHANGE</td>
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<td align="left" valign="top">EACCES</td>
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</tr>
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</table>
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<br>
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<h3>Return Value</h3>
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<dl compact>
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<dt><em>0</em></dt>
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<dd><strong>mkdir()</strong> was successful. The directory was created.</dd>
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<dt><em>-1</em></dt>
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<dd><strong>mkdir()</strong> was not successful. The directory was not created.
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The <em>errno</em> global variable is set to indicate the 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>mkdir()</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#EACCES">EACCES</a>]</em></td>
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<td align="left" valign="top">
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<p>If you are accessing a remote file through the Network File System, update
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operations to file permissions at the server are not reflected at the client
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until updates to data that is stored locally by the Network File System take
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place. (Several options on the Add Mounted File System (ADDMFS) command
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determine the time between refresh operations of local data.) Access to a
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remote file may also fail due to different mappings of user IDs (UID) or group
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IDs (GID) on the local and remote systems.</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#EAGAIN">EAGAIN</a>]</em></td>
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<td align="left" valign="top">
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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#EBADFID">EBADFID</a>]</em></td>
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<td align="left" valign="top">
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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#EBADNAME">EBADNAME</a>]</em></td>
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<td align="left" valign="top">
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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#EBUSY">EBUSY</a>]</em></td>
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<td align="left" valign="top">
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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#ECONVERT">ECONVERT</a>]</em></td>
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<td align="left" valign="top">
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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#EDAMAGE">EDAMAGE</a>]</em></td>
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<td align="left" valign="top">
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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#EEXIST">EEXIST</a>]</em></td>
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<td align="left" valign="top">
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<p>The named file, directory, or path already exists. Or, the last component of
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<em>path</em> is a symbolic link.</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#EFAULT">EFAULT</a>]</em></td>
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<td align="left" valign="top">
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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#EFILECVT">EFILECVT</a>]</em></td>
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<td align="left" valign="top">
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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#EINTR">EINTR</a>]</em></td>
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<td align="left" valign="top">
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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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</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#EIO">EIO</a>]</em></td>
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<td align="left" valign="top">
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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#EJRNDAMAGE">EJRNDAMAGE</a>]</em></td>
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<td align="left" valign="top">
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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#EJRNENTTOOLONG">EJRNENTTOOLONG</a>]</em></td>
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<td align="left" valign="top">
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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#EJRNINACTIVE">EJRNINACTIVE</a>]</em></td>
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<td align="left" valign="top">
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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#EJRNRCVSPC">EJRNRCVSPC</a>]</em></td>
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<td align="left" valign="top">
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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#ELOOP">ELOOP</a>]</em></td>
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<td align="left" valign="top">
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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#EMLINK">EMLINK</a>]</em></td>
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<td align="left" valign="top">
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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#ENAMETOOLONG">ENAMETOOLONG</a>]</em></td>
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<td align="left" valign="top">
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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#ENEWJRN">ENEWJRN</a>]</em></td>
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<td align="left" valign="top">
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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#ENEWJRNRCV">ENEWJRNRCV</a>]</em></td>
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<td align="left" valign="top">
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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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</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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</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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</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#ENOSYS">ENOSYS</a>]</em></td>
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<td align="left" valign="top">
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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#ENOTAVAIL">ENOTAVAIL</a>]</em></td>
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<td align="left" valign="top">
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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#ENOTDIR">ENOTDIR</a>]</em></td>
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<td align="left" valign="top">
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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#ENOTSAFE">ENOTSAFE</a>]</em></td>
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<td align="left" valign="top">
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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#ENOTSUP">ENOTSUP</a>]</em></td>
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<td align="left" valign="top">
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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">
|
|
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#EROOBJ">EROOBJ</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#ESTALE">ESTALE</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
<p>If you are accessing a remote file through the Network File System, the file
|
|
may have been deleted at the server.</p>
|
|
</td>
|
|
</tr>
|
|
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#EUNKNOWN">EUNKNOWN</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<p>If interaction with a file server is required to access the object, <em>
|
|
errno</em> could indicate one of the following errors:</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#EADDRNOTAVAIL">EADDRNOTAVAIL</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#ECONNABORTED">ECONNABORTED</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#ECONNREFUSED">ECONNREFUSED</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#ECONNRESET">ECONNRESET</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#EHOSTDOWN">EHOSTDOWN</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#EHOSTUNREACH">EHOSTUNREACH</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#ENETDOWN">ENETDOWN</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#ENETRESET">ENETRESET</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#ENETUNREACH">ENETUNREACH</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#ESTALE">ESTALE</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
<p>If you are accessing a remote file through the Network File System, the file
|
|
may have been deleted at the server.</p>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#ETIMEDOUT">ETIMEDOUT</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>[<a href="unix14.htm#EUNATCH">EUNATCH</a>]</em></td>
|
|
|
|
<td align="left" valign="top">
|
|
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<br>
|
|
<br>
|
|
<h3>Error Messages</h3>
|
|
|
|
<p>The following messages may be sent from this function:</p>
|
|
|
|
<table width="100%" cellpadding="5">
|
|
<tr>
|
|
<th align="left" valign="top">Message ID</th>
|
|
<th align="left" valign="top">Error Message Text</th>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td width="15%" valign="top">CPE3418 E</td>
|
|
<td width="85%" valign="top">Possible APAR condition or hardware failure.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">CPFA0D4 E</td>
|
|
<td valign="top">File system error occurred. Error number &1.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">CPF3CF2 E</td>
|
|
<td valign="top">Error(s) occurred during running of &1 API.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">CPF9872 E</td>
|
|
<td valign="top">Program or service program &1 in library &2 ended.
|
|
Reason code &3.</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<br>
|
|
<h3><a name="usage_notes">Usage Notes</a></h3>
|
|
|
|
<ol type="1">
|
|
<li>This function will fail with error code [ENOTSAFE] when all the following
|
|
conditions are true:<br>
|
|
<br>
|
|
<ul>
|
|
<li>There are secondary threads active in the job.<br>
|
|
</li>
|
|
|
|
<li>The object on which this function is operating resides in a file system
|
|
that is not threadsafe. Only the following file systems are threadsafe for this
|
|
function:<br>
|
|
<br>
|
|
<ul>
|
|
<li>"Root" (/)</li>
|
|
|
|
<li>QOpenSys</li>
|
|
|
|
<li>User-defined</li>
|
|
|
|
<li>QNTC</li>
|
|
|
|
<li>QSYS.LIB</li>
|
|
|
|
<li>Independent ASP QSYS.LIB</li>
|
|
|
|
<li>QOPT</li>
|
|
|
|
<li>Network File System</li>
|
|
|
|
|
|
<li>QFileSvr.400</li>
|
|
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
|
|
<br>
|
|
</li>
|
|
|
|
<li>"Root" (/), QOpenSys, and User-Defined File System Differences
|
|
|
|
<p>The user who creates the directory becomes its owner.</p>
|
|
|
|
<p>The S_ISGID bit of the directory affects what the group ID (GID) is for
|
|
objects that are created in the directory. If the S_ISGID bit of the parent
|
|
directory is off, the group ID (GID) is set to the effective GID of the thread
|
|
creating the object. If the S_ISGID bit of the parent directory is on, the
|
|
group ID (GID) is copied from the parent directory in which the new directory
|
|
is being created.</p>
|
|
|
|
<p>The owner, primary group, and public object authorities (*OBJEXIST, *OBJMGT,
|
|
*OBJALTER, and *OBJREF) are copied from the parent directory's owner, primary
|
|
group, and public object authorities. This occurs even when the new directory
|
|
has a different owner than the parent directory. The owner, primary group, and
|
|
public data authorities (*R, *W, and *X) are derived from the permissions
|
|
specified in the mode (except for those permissions that are also set in the
|
|
file mode creation mask). The new directory does not have any private
|
|
authorities or authorization list. It only has authorities for the owner,
|
|
primary group, and public.</p>
|
|
|
|
<p>The create object scanning
|
|
attribute value for this directory is copied from the create object scanning
|
|
attribute value of the parent directory. For more information on this
|
|
attribute, see <a href="qsetattr.htm">Qp0lSetAttr()</a>--Set Attributes. </p>
|
|
|
|
<p><img src="delta.gif" alt="Start of change">
|
|
The create object auditing
|
|
attribute value for this directory will be set to *SYSVAL.
|
|
For more information on this attribute,
|
|
see <a href="qsetattr.htm">Qp0lSetAttr()</a>--Set Attributes.
|
|
<img src="deltaend.gif" alt="End of change"></p>
|
|
|
|
<br>
|
|
</li>
|
|
|
|
<li>QSYS.LIB and Independent ASP QSYS.LIB File System Differences
|
|
|
|
<p>The user who creates the directory becomes its owner. The group ID is copied
|
|
from the primary user ID, if one exists.</p>
|
|
|
|
<p>The owner is given *ALL object authority to the new directory. The group
|
|
object authorities are copied from the user profile of the owner. The public
|
|
receives no object authority to the directory.</p>
|
|
|
|
<p>The primary group authorities specified in <em>mode</em> are not saved if no
|
|
primary group exists.</p>
|
|
|
|
<p>The change and modification times for the directory that contains the new
|
|
directory are only set when the new directory is a database file.</p>
|
|
|
|
<p><img src="delta.gif" alt="Start of change">
|
|
The create object auditing
|
|
attribute value for this directory will be set to *SYSVAL.
|
|
For more information on this attribute,
|
|
see <a href="qsetattr.htm">Qp0lSetAttr()</a>--Set Attributes.
|
|
<img src="deltaend.gif" alt="End of change"></p>
|
|
<br>
|
|
</li>
|
|
|
|
<li>QDLS File System Differences
|
|
|
|
<p>The user who creates the directory becomes its owner. The group ID is copied
|
|
from the parent folder in which the new directory is being created.</p>
|
|
|
|
<p>The object authority of the owner is set to *OBJMGT + *OBJEXIST + *OBJALTER
|
|
+ *OBJREF.</p>
|
|
|
|
<p>The primary group and public object authority and all other authorities are
|
|
copied from the parent folder.</p>
|
|
|
|
<p>The owner, primary group, and public data authority (including *OBJOPR) are
|
|
derived from the permissions specified in <em>mode</em> (except those
|
|
permissions that are also set in the file mode creation mask).</p>
|
|
|
|
<p>The primary group authorities specified in <em>mode</em> are not saved if no
|
|
primary group exists.</p>
|
|
|
|
<br>
|
|
</li>
|
|
|
|
<li>QOPT File System Differences
|
|
|
|
<p>When the volume on which the directory is being created is formatted in
|
|
Universal Disk Format (UDF):<br>
|
|
<br>
|
|
</p>
|
|
|
|
<ul>
|
|
<li>The authorization that is checked for the object and preceding directories
|
|
in the path name follows the rules described in <a href="#TBLAMKDIR">
|
|
Authorization Required for mkdir()</a>.</li>
|
|
|
|
<li>The volume authorization list is checked for *CHANGE authority.</li>
|
|
|
|
<li>The user who creates the file becomes its owner.</li>
|
|
|
|
<li>The group ID is copied from the parent directory in which the file is
|
|
created.</li>
|
|
|
|
<li>The owner, primary group, and public data authorities (*R, *W, and *X) are
|
|
derived from the permissions specified in the mode.</li>
|
|
|
|
<li>The same uppercase and lowercase forms in which the names are entered are
|
|
preserved. No distinction is made between uppercase and lowercase when
|
|
searching for names.</li>
|
|
</ul>
|
|
|
|
<p>When the volume on which the directory is being created is not formatted in
|
|
Universal Disk Format (UDF):</p>
|
|
|
|
<ul>
|
|
<li>No authorization is checked on the object or preceding directories in the
|
|
path name.</li>
|
|
|
|
<li>The volume authorization list is checked for *CHANGE authority.</li>
|
|
|
|
<li>QDFTOWN becomes the owner of the directory.</li>
|
|
|
|
<li>No group ID is assigned to the directory.</li>
|
|
|
|
<li>The permissions specified in the mode are ignored. The owner, primary
|
|
group, and public data authorities are set to RWX.</li>
|
|
|
|
<li>For newly created directories, names are created in uppercase. No
|
|
distinction is made between uppercase and lowercase when searching for
|
|
names.</li>
|
|
</ul>
|
|
|
|
<p>A directory cannot be created as a direct child of /QOPT.</p>
|
|
|
|
<p>The change and modification times of the parent directory are not
|
|
updated.</p>
|
|
|
|
<br>
|
|
</li>
|
|
|
|
<li>Network File System Differences
|
|
|
|
<p>Local access to remote directories through the Network File System may
|
|
produce unexpected results due to conditions at the server. The creation of a
|
|
directory may fail if permissions and other attributes that are stored locally
|
|
by the Network File System are more restrictive than those at the server. A
|
|
later attempt to create a file can succeed when the locally stored data has
|
|
been refreshed. (Several options on the Add Mounted File System (ADDMFS)
|
|
command determine the time between refresh operations of local data.) The
|
|
creation can also succeed after the file system has been remounted.</p>
|
|
|
|
<p>If you try to re-create a directory that was recently deleted, the request
|
|
may fail because data that was stored locally by the Network File System still
|
|
has a record of the directory's existence. The creation succeeds when the
|
|
locally stored data has been updated.</p>
|
|
|
|
<br>
|
|
</li>
|
|
|
|
<li>QNetWare File System Differences
|
|
|
|
<p>The QNetWare file system does not fully support mode bits. See <a href=
|
|
"../rzaef/rzaefoverview.htm">NetWare on iSeries</a> for more information.</p>
|
|
|
|
<br>
|
|
</li>
|
|
|
|
<li>QNTC File System Differences
|
|
|
|
<p>Directory authorities are inherited from the access control list (if any
|
|
exists) of the parent directory. The mode bits are ignored.</p>
|
|
|
|
<p>In addition to the normal <strong>mkdir()</strong> function, in the QNTC
|
|
file system, <strong>mkdir()</strong> can be used to add a server directory
|
|
under the /QNTC directory level. Directories for all functional Windows NT
|
|
servers in the local subnet are automatically created. However, Windows NT
|
|
servers outside the local subnet must be added by using <strong>
|
|
mkdir()</strong> or the MKDIR command. For example:</p>
|
|
|
|
<pre>
|
|
char new_dir[]="/QNTC/NTSRV1";
|
|
mkdir(new_dir,NULL)
|
|
</pre>
|
|
|
|
<p>would add the NTSRV1 server into the QNTC directory structure for future
|
|
access of files and directories on that server.</p>
|
|
|
|
<p>It is also possible to add the server by using the TCP/IP address. For
|
|
example:</p>
|
|
|
|
<pre>
|
|
char new_dir[]="/QNTC/9.130.67.24";
|
|
mkdir(new_dir,NULL)
|
|
</pre>
|
|
|
|
<p>The directories added using <strong>mkdir()</strong> in the QNTC
|
|
file system will not persist across
|
|
IPLs. Thus, <strong>mkdir()</strong> or the Make Directory (MKDIR) command must
|
|
be reissued after every system IPL.</p>
|
|
</li>
|
|
</ol>
|
|
|
|
<br>
|
|
<h3>Related Information</h3>
|
|
|
|
<ul>
|
|
<li>The <<strong>sys/stat.h</strong>> file (see <a href="unix13.htm">
|
|
Header Files for UNIX-Type Functions</a>)<br>
|
|
</li>
|
|
|
|
<li><a href="chmod.htm">chmod()</a>--Change File Authorizations<br>
|
|
</li>
|
|
|
|
<li><a href="mkdiru.htm">QlgMkdir()</a>--Make Directory<br>
|
|
</li>
|
|
|
|
<li><a href="stat.htm">stat()</a>--Get File Information<br>
|
|
</li>
|
|
|
|
<li><a href="umask.htm">umask()</a>--Set Authorization Mask for Job<br>
|
|
</li>
|
|
|
|
<li><a href="pathconf.htm">pathconf()</a>--Get Configurable Path Name
|
|
Variables</li>
|
|
</ul>
|
|
|
|
<br>
|
|
<h3>Example</h3>
|
|
|
|
<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
|
|
for information pertaining to code examples.</p>
|
|
|
|
<p>The following example creates a new directory:</p>
|
|
|
|
<pre>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
|
|
main() {
|
|
char new_dir[]="new_dir";
|
|
|
|
if (mkdir(new_dir, S_IRWXU|S_IRGRP|S_IXGRP) != 0)
|
|
perror("mkdir() error");
|
|
else if (chdir(new_dir) != 0)
|
|
perror("first chdir() error");
|
|
else if (chdir("..") != 0)
|
|
perror("second chdir() error");
|
|
else if (rmdir(new_dir) != 0)
|
|
perror("rmdir() error");
|
|
else
|
|
puts("success!");
|
|
}
|
|
</pre>
|
|
|
|
<br>
|
|
<hr>
|
|
API introduced: V3R1
|
|
|
|
<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>
|
|
|