REBOOT(3C) Standard C Library Functions REBOOT(3C)

NAME

reboot - reboot system or halt processor

SYNOPSIS

#include <sys/reboot.h>

int reboot(int howto, char *bootargs);

DESCRIPTION

The reboot() function reboots the system. The howto argument specifies
the behavior of the system while rebooting and is a mask constructed by a
bitwise-inclusive-OR of flags from the following list:

RB_AUTOBOOT
The machine is rebooted from the root filesystem on the
default boot device. This is the default behavior. See
boot(8) and kernel(8).


RB_HALT
The processor is simply halted; no reboot takes place.
This option should be used with caution.


RB_ASKNAME
Interpreted by the bootstrap program and kernel, causing
the user to be asked for pathnames during the bootstrap.


RB_DUMP
The system is forced to panic immediately without any
further processing and a crash dump is written to the dump
device (see dumpadm(8)) before rebooting.


Any other howto argument causes the kernel file to boot.


The interpretation of the bootargs argument is platform-dependent.

RETURN VALUES

Upon successful completion, reboot() never returns. Otherwise, -1 is
returned and errno is set to indicate the error.

ERRORS

The reboot() function will fail if:

EPERM
The {PRIV_SYS_CONFIG} privilege is not asserted in the effective
set of the calling process.

SEE ALSO

uadmin(2), Intro(8), boot(8), dumpadm(8), halt(8), init(8), kernel(8),
reboot(8)

March 22, 2004 REBOOT(3C)