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.

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

(limited to 'twiddle.c')

diff --git a/twiddle.c b/twiddle.c
index 9aea4e4..b3aa06f 100644
--- a/twiddle.c
+++ b/twiddle.c
@@ -219,6 +219,8 @@ static const char *validate_params(const game_params *params, bool full)
 	return "Height must be at least the rotating block size";
     if (params->w > INT_MAX / params->h)
         return "Width times height must not be unreasonably large";
+    if (params->movetarget < 0)
+        return "Number of shuffling moves may not be negative";
     return NULL;
 }
 
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