+function resolver:AAAA(rr)
+ local addr = {};
+ for i = 1, rr.rdlength, 2 do
+ local b1, b2 = self:byte(2);
+ table.insert(addr, ("%02x%02x"):format(b1, b2));
+ end
+ addr = table.concat(addr, ":"):gsub("%f[%x]0+(%x)","%1");
+ local zeros = {};
+ for item in addr:gmatch(":[0:]+:") do
+ table.insert(zeros, item)
+ end
+ if #zeros == 0 then
+ rr.aaaa = addr;
+ return
+ elseif #zeros > 1 then
+ table.sort(zeros, function(a, b) return #a > #b end);
+ end
+ rr.aaaa = addr:gsub(zeros[1], "::", 1):gsub("^0::", "::"):gsub("::0$", "::");
+end