vhangup(8) [plan9 man page]

VHANGUP(8)						       The SuSE boot concept							VHANGUP(8)

NAME

       Vhangup - Cause a virtually hangup on the specified terminals

SYNOPSIS

       vhangup [/dev/<terminal> [/dev/<terminal>]]

DESCRIPTION

       vhangup simulates a hangup on the specified terminals.  Not existing device files or devices will be ignored.

EXAMPLES

       vhangup /dev/tty1 /dev/tty2 /dev/tty3 /dev/tty4 /dev/tty5 /dev/tty6 /dev/ttyS1

       This  will replace all open file descriptors in the kernel that points to the listed ttys by a dummy that will deny further reading/writing
       to the device. It also send the signals SIGHUP/SIGCONT to the processes which have file descriptors open on the listed ttys.

RETURN VALUE

       On success, zero is returned.  On error, 1 is returned.

SEE ALSO

       vhangup(2), tty(4), ttyS(4), pts(4).

COPYRIGHT

       2008 Werner Fink, 2008 SUSE LINUX Products GmbH, Germany.

AUTHOR

       Werner Fink <werner@suse.de>

3rd Berkeley Distribution					   Jan 31, 2008 							VHANGUP(8)

SHOWCONSOLE(8)						       The SuSE boot concept						    SHOWCONSOLE(8)

NAME

       Showconsole - determines the underlying tty of stdin
       Setconsole - sets the underlying tty of /dev/console

SYNOPSIS

       showconsole [-n]

       setconsole /dev/tty<xy> < /dev/console

DESCRIPTION

       showconsole  determines the underlying character device of the current stdin.  This can be used on /dev/console as current character device
       to get the real character device back.

       setconsole sets the underlying tty of the system console /dev/console.  This requires that the standard input is identical  with  /dev/con-
       sole and exactly one argument, a valid character device is given.

OPTIONS

       -n     Return  the  major and minor device numbers instead of the device file name.  This can be used to asked the kernel for the major and
	      minor device numbers of a not existing device file in /dev.

BUGS

       showconsole needs a mounted /proc file system and tries to set the controlling tty to stdin if no controlling tty is found.  After  reading
       /proc the status of the controlling tty is restored to avoid problems with getty processes.

FILES

       /proc/<pid of showconsole>/stat
	      the stat file of the showconsole process.

       /dev/console
	      the system console.

SEE ALSO

       blogd(8), console(4), tty(4), proc(5).

COPYRIGHT

       2000 Werner Fink, 2000 SuSE GmbH Nuernberg, Germany.

AUTHOR

       Werner Fink <werner@suse.de>

3rd Berkeley Distribution					   Nov 10, 2000 						    SHOWCONSOLE(8)