# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1643821128 -3600
# Node ID dd15f42f6312f52c2ff588b17b6919063a17bb39
# Parent  ffd66b461f6a825a95f4533815c48d5425d1d1c3
util.dns: Minor updates of SVCB parser

Now based on draft-ietf-dnsop-svcb-https-08

diff -r ffd66b461f6a -r dd15f42f6312 util/dns.lua
--- a/util/dns.lua	Sun Oct 04 21:29:44 2020 +0200
+++ b/util/dns.lua	Wed Feb 02 17:58:48 2022 +0100
@@ -198,7 +198,7 @@
 	}, tlsa_mt);
 end
 
-local svcb_params = {"alpn"; "no-default-alpn"; "port"; "ipv4hint"; "echconfig"; "ipv6hint"};
+local svcb_params = {"alpn"; "no-default-alpn"; "port"; "ipv4hint"; "ech"; "ipv6hint"};
 setmetatable(svcb_params, {__index = function(_, n) return "key" .. tostring(n); end});
 
 local svcb_mt = {
@@ -206,6 +206,7 @@
 		local kv = {};
 		for i = 1, #rr.fields do
 			t_insert(kv, s_format("%s=%q", svcb_params[rr.fields[i].key], tostring(rr.fields[i].value)));
+			-- FIXME the =value part may be omitted when the value is "empty"
 		end
 		return s_format("%d %s %s", rr.prio, rr.name, t_concat(kv, " "));
 	end;