From d719b32495bed06aa3fe7b1594cccf41a70bd66c Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sun, 16 Feb 2014 14:55:07 +0000
Subject: [PATCH] force not using DHT for lookups that are only in the master
 zone (#3325)

---
 src/gns/gnunet-gns.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/gns/gnunet-gns.c b/src/gns/gnunet-gns.c
index 33d4b9206..aa35e7281 100644
--- a/src/gns/gnunet-gns.c
+++ b/src/gns/gnunet-gns.c
@@ -60,6 +60,11 @@ static char *zone_ego_name;
  */
 static char *public_key;
 
+/**
+ * Set to #GNUNET_YES if we must not use the DHT (only local lookup).
+ */
+static int only_cached;
+
 /**
  * raw output
  */
@@ -206,7 +211,7 @@ lookup_with_keys (const struct GNUNET_CRYPTO_EcdsaPublicKey *pkey,
 					lookup_name,
 					pkey,
 					rtype,
-					GNUNET_NO, /* Use DHT */
+					only_cached,
 					shorten_key,
 					&process_lookup_result,
 					lookup_name);
@@ -328,6 +333,7 @@ identity_master_cb (void *cls,
 		    const char *name)
 {
   struct GNUNET_CRYPTO_EcdsaPublicKey pkey;
+  const char *dot;
 
   id_op = NULL;
   if (NULL == ego)
@@ -338,6 +344,11 @@ identity_master_cb (void *cls,
     return;
   }
   GNUNET_IDENTITY_ego_get_public_key (ego, &pkey);
+  /* if the name is of the form 'label.gnu', never go to the DHT */
+  dot = strchr (lookup_name, '.');
+  if ( (NULL != dot) &&
+       (0 == strcasecmp (dot, ".gnu")) )
+    only_cached = GNUNET_YES;
   lookup_with_public_key (&pkey);
 }
 
-- 
2.25.1