From 90dfce0d3edc92287ce1519dafc7e91ba70c1368 Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Mon, 20 Oct 2014 21:56:21 -0400
Subject: don't segfault on CUP with large parameters

---
 src/parser.l | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src')

diff --git a/src/parser.l b/src/parser.l
index cdf1efc..010411e 100644
--- a/src/parser.l
+++ b/src/parser.l
@@ -423,6 +423,14 @@ static void vt100_parser_handle_cup(VT100Screen *vt, char *buf, size_t len)
     if (params[1] == 0) {
         params[1] = 1;
     }
+    /* this needs to be fixed up here (and not in screen.c) because CUP hsould
+     * never cause scrolling */
+    if (params[0] > vt->grid->max.row) {
+        params[0] = vt->grid->max.row;
+    }
+    if (params[1] > vt->grid->max.col) {
+        params[1] = vt->grid->max.col;
+    }
     vt100_screen_move_to(vt, params[0] - 1, params[1] - 1);
 }
 
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