util.ip: Improve comparison, == doesn't necessarily handle IPv6 addresses correctly...

diff --git a/util/ip.lua b/util/ip.lua
index d0ae07eb8aa3c57cd18e178b20ff10c391d0ed4b..7dcace5cac35d8ec271a4fd2328ce58b7e020fcc 100644 (file)
--- a/util/ip.lua
+++ b/util/ip.lua
@@ -229,13 +229,10 @@ end
 
 local function match(ipA, ipB, bits)
        local common_bits = commonPrefixLength(ipA, ipB);
-       if not bits then
-               return ipA == ipB;
-       end
        if bits and ipB.proto == "IPv4" then
                common_bits = common_bits - 96; -- v6 mapped addresses always share these bits
        end
-       return common_bits >= bits;
+       return common_bits >= (bits or 128);
 end
 
 return {new_ip = new_ip,