From af3ab1cc5dae69917f921c959e1105491fecdab7 Mon Sep 17 00:00:00 2001
From: Franklin Wei <franklin@rockbox.org>
Date: Sun, 21 Jul 2024 18:54:43 -0400
Subject: Add more configuration parameter lower-bound checks.

---
 pattern.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'pattern.c')

diff --git a/pattern.c b/pattern.c
index d38cada..b370a3d 100644
--- a/pattern.c
+++ b/pattern.c
@@ -185,6 +185,8 @@ static const char *validate_params(const game_params *params, bool full)
     if (params->w > INT_MAX - 1 || params->h > INT_MAX - 1 ||
         params->w > INT_MAX / params->h)
         return "Puzzle must not be unreasonably large";
+    if (params->w * params->h < 2)
+        return "Grid must contain at least two squares";
     return NULL;
 }
 
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