use system nameserver if DNS field is empty #26

net.go

@@ -0,0 +1,24 @@
+// will delete when upgrading to go 1.18
+
+package wireproxy
+
+import (
+	"golang.zx2c4.com/go118/netip"
+	"net"
+)
+
+func TCPAddrFromAddrPort(addr netip.AddrPort) *net.TCPAddr {
+	return &net.TCPAddr{
+		IP:   addr.Addr().AsSlice(),
+		Zone: addr.Addr().Zone(),
+		Port: int(addr.Port()),
+	}
+}
+
+func UDPAddrFromAddrPort(addr netip.AddrPort) *net.UDPAddr {
+	return &net.UDPAddr{
+		IP:   addr.Addr().AsSlice(),
+		Zone: addr.Addr().Zone(),
+		Port: int(addr.Port()),
+	}
+}