<html> <head> <title>reboot</title> <body bgcolor=#ffffff> <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 <unistd.h><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%> </td><td> </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> </body> </html>