reboot(2) — DG/UX 4.30



     reboot(2)                  DG/UX 4.30                   reboot(2)



     NAME
          reboot - Reboot halts the system processor(s).

     SYNOPSIS
          #include        <sys/reboot.h>

          int     reboot  (howto)
          int     howto;

     PARAMETERS
          howto          A mask of options specifying the type of
                         shutdown to perform.

     DESCRIPTION
          The reboot system call halts the system processor(s).  The
          howto mask specifies the type of shutdown to perform.  The
          possible values of howto are:

          RB_HALT
               The processor(s) is (are) simply halted.  Use with
               caution.

          RB_SHUTDOWN
               The system is shut down and the processor(s) is (are)
               halted.  All user processes are killed, and the buffer
               cache is flushed.

          RB_AUTOBOOT
               The system is shut down and the processor(s) is (are)
               halted.  All user processes are killed, and the buffer
               cache is flushed.  The system is then rebooted using
               the same boot flags as when it was last booted.

     ACCESS CONTROL
          Only the super-user may halt the system processor(s).

     RETURN VALUE
          If successful, this call never returns.  Otherwise, a -1 is
          returned, and errno is set to return the error.

     EXCEPTIONS
          Errno may be set to one of the following error codes:

          EPERM          The caller is not super-user.

          EINVAL         The option specified in howto was not RB_HALT
                         or RB_SHUTDOWN.








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