From a8e5b90aebc0fae02c8ccd88fe3399d5e48d4b6f Mon Sep 17 00:00:00 2001
From: ShadowNinja <shadowninja@minetest.net>
Date: Tue, 4 Feb 2014 15:11:02 -0500
Subject: [PATCH] Don't overwrite area file if serialization fails

---
 internal.lua | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/internal.lua b/internal.lua
index 338187a..deba856 100644
--- a/internal.lua
+++ b/internal.lua
@@ -5,11 +5,16 @@ end
 
 -- Save the areas table to a file
 function areas:save()
+	local datastr = minetest.serialize(self.areas)
+	if not datastr then
+		minetest.log("error", "[areas] Failed to serialize area data!")
+		return
+	end
 	local file, err = io.open(self.filename, "w")
 	if err then
 		return err
 	end
-	file:write(minetest.serialize(self.areas))
+	file:write(datastr)
 	file:close()
 end