2 files changed, 26 insertions, 0 deletions

diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index df3c64272d21..0ce0b3ec2bb0 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -171,6 +171,12 @@ static int pty_set_lock(struct tty_struct *tty, int __user *arg)
         return 0;
 }
 
+static int pty_get_lock(struct tty_struct *tty, int __user *arg)
+{
+        int locked = test_bit(TTY_PTY_LOCK, &tty->flags);
+        return put_user(locked, arg);
+}
+
 /* Set the packet mode on a pty */
 static int pty_set_pktmode(struct tty_struct *tty, int __user *arg)
 {
@@ -193,6 +199,13 @@ static int pty_set_pktmode(struct tty_struct *tty, int __user *arg)
         return 0;
 }
 
+/* Get the packet mode of a pty */
+static int pty_get_pktmode(struct tty_struct *tty, int __user *arg)
+{
+        int pktmode = tty->packet;
+        return put_user(pktmode, arg);
+}
+
 /* Send a signal to the slave */
 static int pty_signal(struct tty_struct *tty, int sig)
 {
@@ -420,8 +433,12 @@ static int pty_bsd_ioctl(struct tty_struct *tty,
         switch (cmd) {
         case TIOCSPTLCK: /* Set PT Lock (disallow slave open) */
                 return pty_set_lock(tty, (int __user *) arg);
+        case TIOCGPTLCK: /* Get PT Lock status */
+                return pty_get_lock(tty, (int __user *)arg);
         case TIOCPKT: /* Set PT packet mode */
                 return pty_set_pktmode(tty, (int __user *)arg);
+        case TIOCGPKT: /* Get PT packet mode */
+                return pty_get_pktmode(tty, (int __user *)arg);
         case TIOCSIG:    /* Send signal to other side of pty */
                 return pty_signal(tty, (int) arg);
         }
@@ -536,8 +553,12 @@ static int pty_unix98_ioctl(struct tty_struct *tty,
         switch (cmd) {
         case TIOCSPTLCK: /* Set PT Lock (disallow slave open) */
                 return pty_set_lock(tty, (int __user *)arg);
+        case TIOCGPTLCK: /* Get PT Lock status */
+                return pty_get_lock(tty, (int __user *)arg);
         case TIOCPKT: /* Set PT packet mode */
                 return pty_set_pktmode(tty, (int __user *)arg);
+        case TIOCGPKT: /* Get PT packet mode */
+                return pty_get_pktmode(tty, (int __user *)arg);
         case TIOCGPTN: /* Get PT Number */
                 return put_user(tty->index, (unsigned int __user *)arg);
         case TIOCSIG:    /* Send signal to other side of pty */
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index a3eba7f359ed..739ea86c1cf1 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2687,6 +2687,11 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
         case TIOCNXCL:
                 clear_bit(TTY_EXCLUSIVE, &tty->flags);
                 return 0;
+        case TIOCGEXCL:
+        {
+                int excl = test_bit(TTY_EXCLUSIVE, &tty->flags);
+                return put_user(excl, (int __user *)p);
+        }
         case TIOCNOTTY:
                 if (current->signal->tty != tty)
                         return -ENOTTY;