This is a hotfix patch for infinite echo loop issue which occurs with following
shell command.
> $ echo -en '\033]12;?\033\\'
This problem occurs in some terminals that support OSC 12/get access feature
(e.g. xterm).
I think OSC 12 sequense should be completely parsed and validated.
Some terminals like PuTTY accept 8bit ST (0x9c) control and treat it as OSC
terminate character.
So if cursor color string sequence includes 9c, it might cause unexpected
behavior.
---
input.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/input.c b/input.c
index 23b9574..9855324 100644
--- a/input.c
+++ b/input.c
@@ -1560,7 +1560,8 @@ input_exit_osc(struct input_ctx *ictx)
server_status_window(ictx->wp->window);
break;
case 12:
- screen_set_cursor_colour(ictx->ctx.s, p);
+ if (*p != '?')
+ screen_set_cursor_colour(ictx->ctx.s, p);
break;
case 112:
if (*p == '\0') /* No arguments allowed. */
--
1.7.11.5
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