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-rw-r--r--net/resolvers/service.lua7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/resolvers/service.lua b/net/resolvers/service.lua
index b5a2d821..62d269e5 100644
--- a/net/resolvers/service.lua
+++ b/net/resolvers/service.lua
@@ -1,5 +1,6 @@
local adns = require "net.adns";
local basic = require "net.resolvers.basic";
+local unpack = table.unpack or unpack; -- luacheck: ignore 113
local methods = {};
local resolver_mt = { __index = methods };
@@ -32,7 +33,11 @@ function methods:next(cb)
-- Resolve DNS to target list
local dns_resolver = adns.resolver();
- dns_resolver:lookup(function (answer)
+ dns_resolver:lookup(function (answer, err)
+ if not answer and not err then
+ -- net.adns returns nil if there are zero records or nxdomain
+ answer = {};
+ end
if answer then
if #answer == 0 then
if self.extra and self.extra.default_port then