Adding upstream version 3.2.1.upstream/3.2.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 35 insertions, 0 deletions

diff --git a/daemon/lua/config.lua b/daemon/lua/config.lua
new file mode 100644
index 0000000..448d6dd
--- /dev/null
+++ b/daemon/lua/config.lua
@@ -0,0 +1,35 @@
+-- Listen on localhost
+if not next(net.list()) and not env.KRESD_NO_LISTEN then
+	local ok, err = pcall(net.listen, '127.0.0.1')
+	if not ok then
+		error('bind to 127.0.0.1@53 '..err)
+	end
+	-- IPv6 loopback may fail
+	ok, err = pcall(net.listen, '::1')
+	if not ok and verbose() then
+		print('bind to ::1@53 '..err)
+	end
+	-- Exit when kresd isn't listening on any interfaces
+	if not next(net.list()) then
+		panic('not listening on any interface, exiting...')
+	end
+end
+-- Open cache if not set/disabled
+if not cache.current_size then
+	cache.size = 100 * MB
+end
+
+-- If no addresses for root servers are set, load them from the default file
+if require('ffi').C.kr_zonecut_is_empty(kres.context().root_hints) then
+	_hint_root_file()
+end
+
+if not trust_anchors.keysets['\0'] and trust_anchors.keyfile_default then
+	if io.open(trust_anchors.keyfile_default, 'r') then
+		trust_anchors.config(trust_anchors.keyfile_default, true)
+	else
+		panic("cannot open default trust anchor file:'%s'",
+		      trust_anchors.keyfile_default
+		)
+	end
+end