vt: fix canonical input in UTF-8 mode
Samuel Thibault [Wed, 7 May 2008 03:42:37 +0000 (20:42 -0700)]
For e.g.  proper TTY canonical support, IUTF8 termios flag has to be set as
appropriate.  Linux used to not care about setting that flag for VT TTYs.

This patch fixes that by activating it according to the current mode of the
VT, and sets the default value according to the vt.default_utf8 parameter.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Willy Tarreau <w@1wt.eu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/char/vt.c

index e458b08..fa1ffbf 100644 (file)
@@ -2742,6 +2742,10 @@ static int con_open(struct tty_struct *tty, struct file *filp)
                                tty->winsize.ws_row = vc_cons[currcons].d->vc_rows;
                                tty->winsize.ws_col = vc_cons[currcons].d->vc_cols;
                        }
+                       if (vc->vc_utf)
+                               tty->termios->c_iflag |= IUTF8;
+                       else
+                               tty->termios->c_iflag &= ~IUTF8;
                        release_console_sem();
                        vcs_make_sysfs(tty);
                        return ret;
@@ -2918,6 +2922,8 @@ int __init vty_init(void)
        console_driver->minor_start = 1;
        console_driver->type = TTY_DRIVER_TYPE_CONSOLE;
        console_driver->init_termios = tty_std_termios;
+       if (default_utf8)
+               console_driver->init_termios.c_iflag |= IUTF8;
        console_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_RESET_TERMIOS;
        tty_set_operations(console_driver, &con_ops);
        if (tty_register_driver(console_driver))