Instead of passing titles through vis() which doubles backslashes, just

ignore any containing control characters or invalid UTF-8. GitHub issue 2070.

1 files changed, 3 insertions, 7 deletions

diff --git a/input.c b/input.c
index ea9320d1..82d2b398 100644
--- a/input.c
+++ b/input.c
@@ -2213,10 +2213,8 @@ input_exit_osc(struct input_ctx *ictx)
 	switch (option) {
 	case 0:
 	case 2:
-		if (utf8_isvalid(p)) {
-			screen_set_title(sctx->s, p);
+		if (screen_set_title(sctx->s, p))
 			server_status_window(ictx->wp->window);
-		}
 		break;
 	case 4:
 		input_osc_4(ictx, p);
@@ -2274,10 +2272,8 @@ input_exit_apc(struct input_ctx *ictx)
 		return;
 	log_debug("%s: \"%s\"", __func__, ictx->input_buf);
 
-	if (!utf8_isvalid(ictx->input_buf))
-		return;
-	screen_set_title(sctx->s, ictx->input_buf);
-	server_status_window(ictx->wp->window);
+	if (screen_set_title(sctx->s, ictx->input_buf))
+		server_status_window(ictx->wp->window);
 }
 
 /* Rename string started. */