| From | Peter Hurley <> | Subject | [PATCH v4 15/24] n_tty: Reset lnext if canonical mode changes | Date | Sat, 15 Jun 2013 09:14:27 -0400 |
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lnext escapes the next input character as a literal, and must be reset when canonical mode changes (to avoid misinterpreting a special character as a literal if canonical mode is changed back again).
lnext is specifically not reset on a buffer flush so as to avoid misinterpreting the next input character as a special character.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com> --- drivers/tty/n_tty.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index c7f71cb..e63beab 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -1574,6 +1574,7 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old) bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE); ldata->canon_head = ldata->read_tail; ldata->erasing = 0; + ldata->lnext = 0; } if (canon_change && !L_ICANON(tty) && read_cnt(ldata)) -- 1.8.1.2
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