Upgrade unbound library

These files were pulled from the 1.6.3 release tarball.

This new version builds against OpenSSL version 1.1 which will be
the default in the new Debian Stable which is due to be released
RealSoonNow (tm).

external/unbound/validator/autotrust.h

@@ -58,7 +58,7 @@ typedef enum {
 	AUTR_STATE_MISSING = 3,
 	AUTR_STATE_REVOKED = 4,
 	AUTR_STATE_REMOVED = 5
-} autr_state_t;
+} autr_state_type;
 
 /** 
  * Autotrust metadata for one trust anchor key.
@@ -73,7 +73,7 @@ struct autr_ta {
 	/** last update of key state (new pending count keeps date the same) */
 	time_t last_change;
 	/** 5011 state */
-	autr_state_t s;
+	autr_state_type s;
 	/** pending count */
 	uint8_t pending_count;
 	/** fresh TA was seen */
@@ -90,7 +90,7 @@ struct autr_point_data {
 	/** file to store the trust point in. chrootdir already applied. */
 	char* file;
 	/** rbtree node for probe sort, key is struct trust_anchor */
-	rbnode_t pnode;
+	rbnode_type pnode;
 
 	/** the keys */
 	struct autr_ta* keys;
@@ -126,7 +126,7 @@ struct autr_point_data {
 struct autr_global_data {
 	/** rbtree of autotrust anchors sorted by next probe time.
 	 * When time is equal, sorted by anchor class, name. */
-	rbtree_t probe;
+	rbtree_type probe;
 };
 
 /**