From 1cd301548a9bafe0ba477041bfdfbc9421627f69 Mon Sep 17 00:00:00 2001
From: Jeremy Rand <jeremy@rand-family.com>
Date: Wed, 30 Dec 2020 00:01:58 -0500
Subject: [PATCH] Validate the magic number and the version of the settings
 file.  For now, I am not trying to handle backwards compatibility of settings
 file but it will be possible to do that in the future.

---
 BuGS/main.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/BuGS/main.c b/BuGS/main.c
index 24f5133..c7d25d0 100644
--- a/BuGS/main.c
+++ b/BuGS/main.c
@@ -289,6 +289,16 @@ BOOLEAN loadSettings(void)
     }
     HUnlock(filenameHandle);
     
+    if (success)
+    {
+        if ((settings.magic[0] != 'B') ||
+            (settings.magic[1] != 'u') ||
+            (settings.magic[2] != 'G') ||
+            (settings.magic[3] != 'S') ||
+            (settings.version != 0))
+            success = FALSE;
+    }
+    
     return success;
 }