From 3c5d7eaef1d3b6d9c93c6ae510317f671da33ceb Mon Sep 17 00:00:00 2001 From: Matthew Wild Date: Fri, 18 Mar 2022 16:10:26 +0000 Subject: net.resolvers.basic: Alternate IP address family targets, per RFC 8305 --- net/resolvers/basic.lua | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'net/resolvers') diff --git a/net/resolvers/basic.lua b/net/resolvers/basic.lua index a5ea5dee..667015a0 100644 --- a/net/resolvers/basic.lua +++ b/net/resolvers/basic.lua @@ -42,8 +42,16 @@ end local function merge_targets(ipv4_targets, ipv6_targets) local result = { secure = ipv4_targets.secure and ipv6_targets.secure }; - t_move(ipv6_targets, 1, #ipv6_targets, 1, result); - t_move(ipv4_targets, 1, #ipv4_targets, #result+1, result); + local common_length = math.min(#ipv4_targets, #ipv6_targets); + for i = 1, common_length do + table.insert(result, ipv6_targets[i]); + table.insert(result, ipv4_targets[i]); + end + if common_length < #ipv4_targets then + t_move(ipv4_targets, common_length+1, #ipv4_targets, common_length+1, result); + elseif common_length < #ipv6_targets then + t_move(ipv6_targets, common_length+1, #ipv6_targets, common_length+1, result); + end return result; end -- cgit v1.2.3