[PATCH] cli: Consume invalid escape sequences early

[Yurii Monakov <monakov.y@gmail.com>]

This commit fixes some issues with extra 'Esc' keys entered by user:

1. Sequence <Esc><Esc><Enter> right after autoboot stop gives:
=>
nknown command 'ry 'help'
=>
2. Sequence <Esc><p><r><i><Enter> gives:
=> ri
Unknown command 'ri' - try 'help'
=>
3. Extra 'Esc' key presses break backspace functionality.

Signed-off-by: Yurii Monakov <monakov.y@gmail.com>
---
 common/cli_getch.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/common/cli_getch.c b/common/cli_getch.c
index 61d4cb261b..0ee7908777 100644
--- a/common/cli_getch.c
+++ b/common/cli_getch.c
@@ -46,6 +46,8 @@ static int cli_ch_esc(struct cli_ch_state *cch, int ichar,
 	case 1:
 		if (ichar == '[' || ichar == 'O')
 			act = ESC_SAVE;
+		else
+			act = ESC_CONVERTED;
 		break;
 	case 2:
 		switch (ichar) {
-- 
2.34.1