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<!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>rmdir()--Remove Directory</title>
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<h2>rmdir()--Remove Directory</h2>
<div class="box" style="width: 60%;">
<br>
&nbsp;&nbsp;Syntax<br>
<pre>
#include &lt;unistd.h&gt;
int rmdir(const char <em>*path</em>);
</pre>
&nbsp;&nbsp;Service Program Name: QP0LLIB1<br>
<!-- iddvc RMBR -->
<br>
&nbsp;&nbsp;Default Public Authority: *USE<br>
<!-- iddvc RMBR -->
<br>
&nbsp;&nbsp;Threadsafe: Conditional; see <a href="#USAGE_NOTES">Usage Notes</a>.<br>
<!-- iddvc RMBR -->
<br>
</div>
<p>The <strong>rmdir()</strong> function removes a directory, <em>path</em>,
provided that the directory is empty; that is, the directory contains no
entries other than "dot" (<strong>.</strong>) or "dot-dot"
(<strong>..</strong>). <em>path</em> must not end in dot (<strong>.</strong>)
or dot-dot (<strong>..</strong>).</p>
<p>If no job currently has the directory open, <strong>rmdir()</strong> deletes
the directory itself. The space occupied by the directory is freed for new use.
If one or more jobs have the directory open, <strong>rmdir()</strong> removes
the link and the dot (<strong>.</strong>) or dot-dot (<strong>..</strong>).
entries. The directory itself is not removed until the last job closes the
directory. New files cannot be created under a directory after the last link is
removed, even if the directory is still open.</p>
<p><strong>rmdir()</strong> does not remove a directory that still contains
files or subdirectories. If <em>path</em> refers to a directory that is not
empty, the [ENOTEMPTY] error is returned. If <em>path</em> refers to the
current directory of the current job, to the "root" (/) directory, or to a
directory that cannot be removed, the [EBUSY] error is returned.</p>
<p>If <em>path</em> refers to a symbolic link, <strong>rmdir()</strong> does
not affect any file or directory named by the contents of the symbolic
link.</p>
<p>If <strong>rmdir()</strong> is successful, the change and modification times
for the parent directory are updated.</p>
<br>
<h3>Parameters</h3>
<dl>
<dt><strong><em>path</em></strong></dt>
<dd>(Input) A pointer to the null-terminated path name of the directory to be
removed.
<p>This parameter is assumed to be represented in the CCSID (coded character
set identifier) currently in effect for the job. If the CCSID of the job is
65535, this parameter is assumed to be represented in the default CCSID of the
job.</p>
<p>See <a href="rmdiru.htm">QlgRmdir()--Remove Directory (using NLS-enabled
path name)</a> for a description and an example of supplying the <em>path</em>
in any CCSID.</p>
</dd>
</dl>
<br>
<h3>Authorities</h3>
<p><strong>Note:</strong> Adopted authority is not used.</p>
<p><strong><a name="TBLARMDIR">Authorization Required for rmdir()
(excluding QSYS.LIB, independent ASP QSYS.LIB, and QDLS)</a></strong></p>
<table border>
<!-- cols="60 20 20" -->
<tr>
<th align="left" valign="bottom">Object Referred to</th>
<th align="left" valign="bottom">Authority Required</th>
<th align="left" valign="bottom">errno</th>
</tr>
<tr>
<td align="left" valign="top" width="90%">Each directory in the path name
preceding the directory to be removed</td>
<td align="left" valign="top" width="5%">*X</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
<tr>
<td align="left" valign="top" width="90%">Parent directory of the directory to
be removed</td>
<td align="left" valign="top" width="5%">*WX</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
<tr>
<td align="left" valign="top" width="90%">Directory to be removed</td>
<td align="left" valign="top" width="5%">*OBJEXIST</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
<tr>
<td align="left" valign="top" width="98%">Parent directory of the
directory to be removed has the S_ISVTX mode bit set to binary one (see <b>Note</b>).</td>
<td align="left" valign="top" width="2%">*ALLOBJ, or owner of the
directory to be removed, or owner of the parent directory of the directory to be removed</td>
<td align="left" valign="top">EPERM</td>
</tr>
<tr>
<td align="left" valign="top" width="100%"><b>Note:</b> The S_ISVTX mode bit
(which is equivalent to the 'Restricted rename and unlink' object attribute)
restriction only applies to objects in the "root" (/), QOpenSys, and user-defined file systems.
</td>
</tr>
</table>
<br>
<p><strong><a name="TBLARMDIR2">Authorization Required for rmdir()
in the QSYS.LIB and independent ASP QSYS.LIB File Systems</a></strong></p>
<table border>
<!-- cols="60 20 20" -->
<tr>
<th align="left" valign="bottom">Object Referred to</th>
<th align="left" valign="bottom">Authority Required</th>
<th align="left" valign="bottom">errno</th>
</tr>
<tr>
<td align="left" valign="top" width="90%">Each directory in the path name
preceding the directory to be removed</td>
<td align="left" valign="top" width="5%">*X</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
<tr>
<td align="left" valign="top" width="90%">Parent directory of the directory to
be removed</td>
<td align="left" valign="top" width="5%">*X</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
<tr>
<td align="left" valign="top" width="90%">Directory to be removed, if it is a
library</td>
<td align="left" valign="top" width="5%">*OBJEXIST, *RX</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
<tr>
<td align="left" valign="top" width="90%">Directory to be removed, if it is a
database file</td>
<td align="left" valign="top" width="5%">*OBJEXIST, *OBJOPR</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
</table>
<br>
<p><strong><a name="TBLARMDIR3">Authorization Required for rmdir()
in the QDLS File System</a></strong><br>
</p>
<table border>
<!-- cols="60 20 20" -->
<tr>
<th align="left" valign="bottom">Object Referred to</th>
<th align="left" valign="bottom">Authority Required</th>
<th align="left" valign="bottom">errno</th>
</tr>
<tr>
<td align="left" valign="top" width="90%">Each directory in the path name
preceding the directory to be removed</td>
<td align="left" valign="top" width="5%">*X</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
<tr>
<td align="left" valign="top" width="90%">Parent directory of the directory to
be removed</td>
<td align="left" valign="top" width="5%">*X</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
<tr>
<td align="left" valign="top" width="90%">Directory to be removed</td>
<td align="left" valign="top" width="5%">*OBJEXIST, *X</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
</table>
<br>
<p><strong><a name="TBLARMDIR4">Authorization Required for rmdir()
in the QOPT File System</a></strong><br>
</p>
<table border>
<!-- cols="60 20 20" -->
<tr>
<th align="left" valign="bottom">Object Referred to</th>
<th align="left" valign="bottom">Authority Required</th>
<th align="left" valign="bottom">errno</th>
</tr>
<tr>
<td align="left" valign="top" width="90%">Volume authorization list</td>
<td align="left" valign="top" width="5%">*CHANGE</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
<tr>
<td align="left" valign="top" width="90%">Each directory in the path name
preceding the directory to be removed if volume media format is Universal Disk
Format (UDF)</td>
<td align="left" valign="top" width="5%">*X</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
<tr>
<td align="left" valign="top" width="90%">Parent directory of the directory to
be removed if volume media format is Universal Disk Format (UDF)</td>
<td align="left" valign="top" width="5%">*WX</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
<tr>
<td align="left" valign="top" width="90%">Directory to be removed if volume
media format is Universal Disk Format (UDF)</td>
<td align="left" valign="top" width="5%">*W</td>
<td align="left" valign="top" width="5%">EACCES</td>
</tr>
<tr>
<td align="left" valign="top" width="90%">Directory and parent directories if
volume media format is not Universal Disk Format (UDF)</td>
<td align="left" valign="top" width="5%">None</td>
<td align="left" valign="top" width="5%">None</td>
</tr>
</table>
<br>
<h3>Return Value</h3>
<dl compact>
<dt><em>0</em></dt>
<dd><strong>rmdir()</strong> was successful.</dd>
<dt><em>-1</em></dt>
<dd><strong>rmdir()</strong> was not successful. The <em>errno</em> global
variable is set to indicate the error.</dd>
</dl>
<br>
<h3>Error Conditions</h3>
<p>If <strong>rmdir()</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#EACCES">EACCES</a>]</em></td>
<td align="left" valign="top">
<p>If you are accessing a remote file through the Network File System, update
operations to file permissions at the server are not reflected at the client
until updates to data that is stored locally by the Network File System take
place. (Several options on the Add Mounted File System (ADDMFS) command
determine the time between refresh operations of local data.) Access to a
remote file may also fail due to different mappings of user IDs (UID) or group
IDs (GID) on the local and remote systems.</p>
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EAGAIN">EAGAIN</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EBADFID">EBADFID</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EBADNAME">EBADNAME</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EBUSY">EBUSY</a>]</em></td>
<td align="left" valign="top">
<p>The path cannot be removed because it is the current working directory of
the current process, or it is currently being used by the system.</p>
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ECONVERT">ECONVERT</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EDAMAGE">EDAMAGE</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EFAULT">EFAULT</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EFILECVT">EFILECVT</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EINTR">EINTR</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EINVAL">EINVAL</a>]</em></td>
<td align="left" valign="top">
<p>For example, the last component of
<em>path</em> is 'dot' or 'dot-dot'.</p>
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EIO">EIO</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EJRNDAMAGE">EJRNDAMAGE</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EJRNENTTOOLONG">EJRNENTTOOLONG</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EJRNINACTIVE">EJRNINACTIVE</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EJRNRCVSPC">EJRNRCVSPC</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ELOOP">ELOOP</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENAMETOOLONG">ENAMETOOLONG</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENEWJRN">ENEWJRN</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENEWJRNRCV">ENEWJRNRCV</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENOENT">ENOENT</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENOMEM">ENOMEM</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENOSPC">ENOSPC</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENOTAVAIL">ENOTAVAIL</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENOTDIR">ENOTDIR</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENOTEMPTY">ENOTEMPTY</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENOTSAFE">ENOTSAFE</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENOTSUP">ENOTSUP</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EPERM">EPERM</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EROOBJ">EROOBJ</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EUNKNOWN">EUNKNOWN</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</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>
</table>
<br>
<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">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ECONNABORTED">ECONNABORTED</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ECONNREFUSED">ECONNREFUSED</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ECONNRESET">ECONNRESET</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EHOSTDOWN">EHOSTDOWN</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EHOSTUNREACH">EHOSTUNREACH</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENETDOWN">ENETDOWN</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENETRESET">ENETRESET</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#ENETUNREACH">ENETUNREACH</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</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">
&nbsp;
</td>
</tr>
<tr>
<td align="left" valign="top">
<em>[<a href="unix14.htm#EUNATCH">EUNATCH</a>]</em></td>
<td align="left" valign="top">
&nbsp;
</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 &amp;1.</td>
</tr>
<tr>
<td valign="top">CPF3CF2 E</td>
<td valign="top">Error(s) occurred during running of &amp;1 API.</td>
</tr>
<tr>
<td valign="top">CPF9872 E</td>
<td valign="top">Program or service program &amp;1 in library &amp;2 ended.
Reason code &amp;3.</td>
</tr>
</table>
<br>
<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:
<ul>
<li>Where multiple threads exist 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:
<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>QSYS.LIB and Independent ASP QSYS.LIB File System Differences
<p>If one or more jobs have the library or file open, <strong>rmdir()</strong>
returns [EBUSY].</p>
<p>If <strong>rmdir()</strong> is successful, the change and modification times
for the parent library are updated only if the "directory" being removed is a
database file.</p>
<br>
</li>
<li>QDLS File System Differences
<p>If one or more jobs have the folder open, or are using the folder as their
current directory, <strong>rmdir()</strong> returns [EBUSY].</p>
<br>
</li>
<li>QOPT File System Differences
<p>The change and modification times of the parent directory are not
updated.</p>
<p>If <em>path</em> refers to a directory that any job has open, the [EBUSY]
error is returned.</p>
<br>
</li>
<li>QNTC File System Differences
<p>The change and modification times of the parent directory are not
updated.</p>
</li>
</ol>
<br>
<h3>Related Information</h3>
<ul>
<li>The &lt;<strong>unistd.h</strong>&gt; file (see <a href="unix13.htm">Header
Files for UNIX-Type Functions</a>)<br>
</li>
<li><a href="mkdir.htm">mkdir()</a>--Make Directory<br>
</li>
<li><a href="rmdiru.htm">QlgRmdir()</a>--Remove Directory (using NLS-enabled
path name)<br>
</li>
<li><a href="unlink.htm">unlink()</a>--Remove Link to File</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 removes a directory:</p>
<pre>
#include &lt;sys/stat.h&gt;
#include &lt;unistd.h&gt;
#include &lt;stdio.h&gt;
#include &lt;sys/stat.h&gt;
#include &lt;fcntl.h&gt;
main() {
char new_dir[]="new_dir";
char new_file[]="new_dir/new_file";
int file_descriptor;
if (mkdir(new_dir, S_IRWXU|S_IRGRP|S_IXGRP) != 0)
perror("mkdir() error");
else if ((file_descriptor = creat(new_file, S_IWUSR)) &lt; 0)
perror("creat() error");
else {
close(file_descriptor);
unlink(new_file);
}
if (rmdir(new_dir) != 0)
perror("rmdir() error");
else
puts("removed!");
}
</pre>
<br>
<hr>
API introduced: V3R1
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