From 4d0edf5ebdfe6f8dfd815526145e23b212449505 Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Wed, 15 Jan 2020 21:16:08 +0100
Subject: util.ip: Fix equality metamethod for Lua 5.3

---
 util/ip.lua | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'util/ip.lua')

diff --git a/util/ip.lua b/util/ip.lua
index d1808225..d039e475 100644
--- a/util/ip.lua
+++ b/util/ip.lua
@@ -19,8 +19,14 @@ local ip_mt = {
 		return ret;
 	end,
 	__tostring = function (ip) return ip.addr; end,
-	__eq = function (ipA, ipB) return ipA.packed == ipB.packed; end
 };
+ip_mt.__eq = function (ipA, ipB)
+	if getmetatable(ipA) ~= ip_mt or getmetatable(ipB) ~= ip_mt then
+		-- Lua 5.3+ calls this if both operands are tables, even if metatables differ
+		return false;
+	end
+	return ipA.packed == ipB.packed;
+end
 
 local hex2bits = {
 	["0"] = "0000", ["1"] = "0001", ["2"] = "0010", ["3"] = "0011",
-- 
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