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<title>reboot</title>
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<h2 align=center>reboot</h2>
<h4 align=center>OS/161 Reference Manual</h4>

<h3>Name</h3>
reboot - reboot or halt system

<h3>Library</h3>
Standard C Library (libc, -lc)

<h3>Synopsis</h3>
#include &lt;unistd.h&gt;<br>
<br>
int<br>
reboot(int <em>code</em>);

<h3>Description</h3>

reboot reboots or shuts down the system. The specific action depends
on the <em>code</em> passed:
<blockquote><table width=90%>
<td width=10%>RB_REBOOT</td>	<td>The system is rebooted.</td></tr>
<td width=10%>RB_HALT</td>	<td>The system is halted.</td></tr>
<td width=10%>RB_POWEROFF</td>	<td>The system is powered off.</td></tr>
</table></blockquote>

<h3>Return Values</h3>

On success, reboot does not return. 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%>&nbsp;</td><td>&nbsp;</td></tr>
<tr><td>EINVAL</td>		<td><em>code</em> was not a valid
				value.</td></tr>
<tr><td>EPERM</td>		<td>The current process does not have
				sufficient privilege to halt the
				system.</td></tr>
</table></blockquote>

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