First commit

middleware/exchange.go

@@ -0,0 +1,10 @@
+package middleware
+
+import "github.com/miekg/dns"
+
+// Exchang sends message m to the server.
+// TODO(miek): optionally it can do retries of other silly stuff.
+func Exchange(c *dns.Client, m *dns.Msg, server string) (*dns.Msg, error) {
+	r, _, err := c.Exchange(m, server)
+	return r, err
+}