vhangup - virtually hangup the current tty


SYNOPSIS

       #include <unistd.h>

       int vhangup(void);


DESCRIPTION

       vhangup  simulates a hangup on the current terminal.  This
       call arranges for other users to have  a  "clean"  tty  at
       login time.


RETURN VALUE

       On  success,  zero is returned.  On error, -1 is returned,
       and errno is set appropriately.


ERRORS

       EPERM  The user is not the super-user.


CONFORMING TO

       This call is Linux-specific, and should  not  be  used  in
       programs intended to be portable.


SEE ALSO

       init(8)