From ba431b5efc178fe2f479b6cfc8612d2af11e005c Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Sat, 2 Nov 2019 19:24:26 +0100
Subject: net.resolvers: Apply IDNA conversion to ascii for DNS lookups (fixes
 #1426)

---
 net/resolvers/basic.lua   | 3 ++-
 net/resolvers/service.lua | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

(limited to 'net')

diff --git a/net/resolvers/basic.lua b/net/resolvers/basic.lua
index 9a3c9952..d8031a6b 100644
--- a/net/resolvers/basic.lua
+++ b/net/resolvers/basic.lua
@@ -1,5 +1,6 @@
 local adns = require "net.adns";
 local inet_pton = require "util.net".pton;
+local idna_to_ascii = require "util.encodings".idna.to_ascii;
 
 local methods = {};
 local resolver_mt = { __index = methods };
@@ -59,7 +60,7 @@ end
 
 local function new(hostname, port, conn_type, extra)
 	return setmetatable({
-		hostname = hostname;
+		hostname = idna_to_ascii(hostname);
 		port = port;
 		conn_type = conn_type or "tcp";
 		extra = extra;
diff --git a/net/resolvers/service.lua b/net/resolvers/service.lua
index b5a2d821..a76adb73 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 idna_to_ascii = require "util.encodings".idna.to_ascii;
 
 local methods = {};
 local resolver_mt = { __index = methods };
@@ -58,7 +59,7 @@ end
 
 local function new(hostname, service, conn_type, extra)
 	return setmetatable({
-		hostname = hostname;
+		hostname = idna_to_ascii(hostname);
 		service = service;
 		conn_type = conn_type or "tcp";
 		extra = extra;
-- 
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