/**
* tty_check_change - check for POSIX terminal changes
* @tty: tty to check
+ * @sig: signal to send
*
* If we try to write to, or set the state of, a terminal and we're
* not in the foreground, send a SIGTTOU. If the signal is blocked or
/**
* proc_set_tty - set the controlling terminal
+ * @tty: tty structure
*
* Only callable by the session leader and only if it does not already have
* a controlling terminal.
/**
* tiocsctty - set controlling tty
* @tty: tty structure
+ * @file: file structure used to check permissions
* @arg: user argument
*
* This ioctl is used to manage job control. It permits a session