Merge pull request #112 from NLnetLabs/owned-label-copy

Add more traits impls to OwnedLabel.

src/base/name/label.rs

@@ -403,6 +403,7 @@ impl fmt::Debug for Label {
 //
 //  This keeps the label in wire format, so the first octet is the length
 //  octet, the remainder is the content.
+#[derive(Clone, Copy)]
 pub struct OwnedLabel([u8; 64]);
 
 impl OwnedLabel {
@@ -534,6 +535,20 @@ impl hash::Hash for OwnedLabel {
     }
 }
 
+//--- Display and Debug
+
+impl fmt::Display for OwnedLabel {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        self.as_label().fmt(f)
+    }
+}
+
+impl fmt::Debug for OwnedLabel {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        f.debug_tuple("OwnedLabel").field(&self.as_label()).finish()
+    }
+}
+
 //------------ SliceLabelsIter -----------------------------------------------
 
 /// An iterator over the labels in an octets slice.