From 2e7009d67b862cf822a1c70e181de6af659a3096 Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jgarzik@bitpay.com>
Date: Tue, 29 Jul 2014 11:04:46 -0400
Subject: Avoid querying DNS seeds, if we have open connections.

The goal is to increase independence and privacy.
---
 src/net.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/net.cpp')

diff --git a/src/net.cpp b/src/net.cpp
index e004fbeb73..62124514c8 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -1221,6 +1221,18 @@ void MapPort(bool)
 
 void ThreadDNSAddressSeed()
 {
+    // goal: only query DNS seeds if address need is acute
+    if ((addrman.size() > 0) &&
+        (!GetBoolArg("-forcednsseed", false))) {
+        MilliSleep(11 * 1000);
+
+        LOCK(cs_vNodes);
+        if (vNodes.size() >= 2) {
+            LogPrintf("P2P peers available. Skipped DNS seeding.\n");
+            return;
+        }
+    }
+
     const vector<CDNSSeedData> &vSeeds = Params().DNSSeeds();
     int found = 0;
 
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