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<title>mkdir</title>
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<h2 align=center>mkdir</h2>
<h4 align=center>OS/161 Reference Manual</h4>
<h3>Name</h3>
mkdir - create directory
<h3>Library</h3>
Standard C Library (libc, -lc)
<h3>Synopsis</h3>
#include <sys/stat.h><br>
<br>
int<br>
mkdir(const char *<em>pathname</em>, int <em>mode</em>);
<h3>Description</h3>
mkdir creates a directory named <em>name</em>, where <em>name</em> is
the last filename component in <em>pathname</em>. All the directories
named in the prefix portion of <em>pathname</em> must exist and must
in fact be directories, not ordinary files. The name <em>name</em>
must not already exist. The new directory must be created atomically.
<p>
The <em>mode</em> argument can be ignored in OS/161.
<p>
<h3>Return Values</h3>
On success, mkdir returns 0. On error, -1 is returned, and
<A HREF=errno.html>errno</A> is set according to the error
encountered.
<h3>Errors</h3>
The following error codes should be returned under the conditions
given. Other error codes may be returned for other errors not
mentioned here.
<blockquote><table width=90%>
<td width=10%> </td><td> </td></tr>
<tr><td>ENODEV</td> <td>The device prefix of <em>pathname</em> did
not exist.</td></tr>
<tr><td>ENOTDIR</td> <td>A non-final component of <em>pathname</em>
was not a directory.</td></tr>
<tr><td>ENOENT</td> <td>A non-final component of <em>pathname</em>
did not exist.</td></tr>
<tr><td>EEXIST</td> <td>An object by the name <em>pathname</em>
already exists.</td></tr>
<tr><td>ENOSPC</td> <td>The filesystem the directory was to be
created on is full.</td></tr>
<tr><td>EIO</td> <td>A hard I/O error occurred.</td></tr>
<tr><td>EFAULT</td> <td><em>pathname</em> was an invalid pointer.</td></tr>
</table></blockquote>
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