# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1579119368 -3600
# Node ID 079b31c8dbf2a7225b0f51092412ab0dd1947257
# Parent  9918b4b0cd588b8121e57fe5e9a0b1c1bf5937bc
util.ip: Fix equality metamethod for Lua 5.3

diff -r 9918b4b0cd58 -r 079b31c8dbf2 util/ip.lua
--- a/util/ip.lua	Wed Jan 15 21:08:01 2020 +0100
+++ b/util/ip.lua	Wed Jan 15 21:16:08 2020 +0100
@@ -19,8 +19,14 @@
 		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",