From 532a103ef8286a476550e8d2a8f9ab19e7e15c22 Mon Sep 17 00:00:00 2001
From: JoelKatz <DavidJoelSchwartz@GMail.com>
Date: Sat, 14 Jul 2012 02:23:45 -0700
Subject: [PATCH] Function to check if a peer has a ledger.

---
 src/Peer.cpp | 5 +++++
 src/Peer.h   | 1 +
 2 files changed, 6 insertions(+)

diff --git a/src/Peer.cpp b/src/Peer.cpp
index 6ac18e8793..939c9cef16 100644
--- a/src/Peer.cpp
+++ b/src/Peer.cpp
@@ -1113,6 +1113,11 @@ void Peer::recvLedger(newcoin::TMLedgerData& packet)
 		punishPeer(PP_UNWANTED_DATA);
 }
 
+bool Peer::hasLedger(const uint256& hash) const
+{
+	return (hash == mClosedLedgerHash) || (hash == mPreviousLedgerHash);
+}
+
 // Get session information we can sign to prevent man in the middle attack.
 // (both sides get the same information, neither side controls it)
 void Peer::getSessionCookie(std::string& strDst)
diff --git a/src/Peer.h b/src/Peer.h
index f06a8c3faa..13cf6b79bc 100644
--- a/src/Peer.h
+++ b/src/Peer.h
@@ -159,6 +159,7 @@ public:
 	static PackedMessage::pointer createGetFullLedger(uint256& hash);
 
 	uint256 getClosedLedgerHash() const { return mClosedLedgerHash; }
+	bool hasLedger(const uint256& hash) const;
 	NewcoinAddress getNodePublic() const { return mNodePublic; }
 	void cycleStatus() { mPreviousLedgerHash = mClosedLedgerHash; mClosedLedgerHash.zero(); }
 };