1 files changed, 38 insertions, 0 deletions
diff --git a/middleware/etcd/debug.go b/middleware/etcd/debug.go
new file mode 100644
index 000000000..b8ca3344f
--- /dev/null
+++ b/middleware/etcd/debug.go
@@ -0,0 +1,38 @@
+package etcd
+
+import (
+	"strings"
+
+	"github.com/miekg/coredns/middleware/etcd/msg"
+
+	"github.com/miekg/dns"
+)
+
+const debugName = "o-o.debug."
+
+// isDebug checks if name is a debugging name, i.e. starts with o-o.debug.
+// it return the empty string if it is not a debug message, otherwise it will return the
+// name with o-o.debug. stripped off.
+func isDebug(name string) string {
+	if len(name) == len(debugName) {
+		return ""
+	}
+	debug := strings.HasPrefix(name, debugName)
+	if !debug {
+		return ""
+	}
+	return name[len(debugName):]
+}
+
+// servicesToTxt puts debug in TXT RRs.
+func servicesToTxt(debug []msg.Service) []dns.RR {
+	if debug == nil {
+		return nil
+	}
+
+	rr := make([]dns.RR, len(debug))
+	for i, d := range debug {
+		rr[i] = d.RR()
+	}
+	return rr
+}