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-rw-r--r--drivers/tty/vt/vt.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index b7bde54db138..3ad0b61e35b4 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1592,7 +1592,7 @@ static void restore_cur(struct vc_data *vc)
enum { ESnormal, ESesc, ESsquare, ESgetpars, ESfunckey,
EShash, ESsetG0, ESsetG1, ESpercent, ESignore, ESnonstd,
- ESpalette };
+ ESpalette, ESosc };
/* console_lock is held (except via vc_init()) */
static void reset_terminal(struct vc_data *vc, int do_clear)
@@ -1652,11 +1652,15 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
* Control characters can be used in the _middle_
* of an escape sequence.
*/
+ if (vc->vc_state == ESosc && c>=8 && c<=13) /* ... except for OSC */
+ return;
switch (c) {
case 0:
return;
case 7:
- if (vc->vc_bell_duration)
+ if (vc->vc_state == ESosc)
+ vc->vc_state = ESnormal;
+ else if (vc->vc_bell_duration)
kd_mksound(vc->vc_bell_pitch, vc->vc_bell_duration);
return;
case 8:
@@ -1767,7 +1771,9 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
} else if (c=='R') { /* reset palette */
reset_palette(vc);
vc->vc_state = ESnormal;
- } else
+ } else if (c>='0' && c<='9')
+ vc->vc_state = ESosc;
+ else
vc->vc_state = ESnormal;
return;
case ESpalette:
@@ -2021,6 +2027,8 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
vc->vc_translate = set_translate(vc->vc_G1_charset, vc);
vc->vc_state = ESnormal;
return;
+ case ESosc:
+ return;
default:
vc->vc_state = ESnormal;
}
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