From 0b9b726bdfb573337de09489ae0750070aec219a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Sun, 20 Mar 2022 16:31:44 +0100
Subject: [PATCH] vt: free OSC buffer after dispatch, if larger than 4K

---
 vt.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/vt.c b/vt.c
index d496fcfe..a98188be 100644
--- a/vt.c
+++ b/vt.c
@@ -577,11 +577,20 @@ action_osc_start(struct terminal *term, uint8_t c)
 static void
 action_osc_end(struct terminal *term, uint8_t c)
 {
-    if (!osc_ensure_size(term, term->vt.osc.idx + 1))
+    struct vt *vt = &term->vt;
+
+    if (!osc_ensure_size(term, vt->osc.idx + 1))
         return;
-    term->vt.osc.data[term->vt.osc.idx] = '\0';
-    term->vt.osc.bel = c == '\a';
+
+    vt->osc.data[vt->osc.idx] = '\0';
+    vt->osc.bel = c == '\a';
     osc_dispatch(term);
+
+    if (unlikely(vt->osc.idx >= 4096)) {
+        free(vt->osc.data);
+        vt->osc.data = NULL;
+        vt->osc.size = 0;
+    }
 }
 
 static void