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	diff --git a/src/net.cpp b/src/net.cpp
	index 37e73c421..7dc2d4c22 100644
	--- a/src/net.cpp
	+++ b/src/net.cpp
	@@ -1,1804 +1,1698 @@
	// Copyright (c) 2009-2010 Satoshi Nakamoto
	// Copyright (c) 2009-2012 The Bitcoin developers
	// Distributed under the MIT/X11 software license, see the accompanying
	// file license.txt or http://www.opensource.org/licenses/mit-license.php.

	#include "headers.h"
	#include "irc.h"
	#include "db.h"
	#include "net.h"
	#include "init.h"
	#include "strlcpy.h"
	#include "addrman.h"

	#ifdef WIN32
	#include <string.h>
	#endif

	#ifdef USE_UPNP
	#include <miniupnpc/miniwget.h>
	#include <miniupnpc/miniupnpc.h>
	#include <miniupnpc/upnpcommands.h>
	#include <miniupnpc/upnperrors.h>
	#endif

	using namespace std;
	using namespace boost;

	static const int MAX_OUTBOUND_CONNECTIONS = 8;

	void ThreadMessageHandler2(void* parg);
	void ThreadSocketHandler2(void* parg);
	void ThreadOpenConnections2(void* parg);
	void ThreadOpenAddedConnections2(void* parg);
	#ifdef USE_UPNP
	void ThreadMapPort2(void* parg);
	#endif
	void ThreadDNSAddressSeed2(void* parg);
	bool OpenNetworkConnection(const CAddress& addrConnect);



	//
	// Global state variables
	//
	bool fClient = false;
	bool fAllowDNS = false;
	static bool fUseUPnP = false;
	uint64 nLocalServices = (fClient ? 0 : NODE_NETWORK);
	CAddress addrLocalHost(CService("0.0.0.0", 0), nLocalServices);
	static CNode* pnodeLocalHost = NULL;
	uint64 nLocalHostNonce = 0;
	array<int, THREAD_MAX> vnThreadsRunning;
	static SOCKET hListenSocket = INVALID_SOCKET;
	CAddrMan addrman;

	vector<CNode*> vNodes;
	CCriticalSection cs_vNodes;
	map<CInv, CDataStream> mapRelay;
	deque<pair<int64, CInv> > vRelayExpiration;
	CCriticalSection cs_mapRelay;
	map<CInv, int64> mapAlreadyAskedFor;


	set<CNetAddr> setservAddNodeAddresses;
	CCriticalSection cs_setservAddNodeAddresses;



	unsigned short GetListenPort()
	{
	return (unsigned short)(GetArg("-port", GetDefaultPort()));
	}

	void CNode::PushGetBlocks(CBlockIndex* pindexBegin, uint256 hashEnd)
	{
	// Filter out duplicate requests
	if (pindexBegin == pindexLastGetBlocksBegin && hashEnd == hashLastGetBlocksEnd)
	return;
	pindexLastGetBlocksBegin = pindexBegin;
	hashLastGetBlocksEnd = hashEnd;

	PushMessage("getblocks", CBlockLocator(pindexBegin), hashEnd);
	}



	bool RecvLine(SOCKET hSocket, string& strLine)
	{
	strLine = "";
	loop
	{
	char c;
	int nBytes = recv(hSocket, &c, 1, 0);
	if (nBytes > 0)
	{
	if (c == '\n')
	continue;
	if (c == '\r')
	return true;
	strLine += c;
	if (strLine.size() >= 9000)
	return true;
	}
	else if (nBytes <= 0)
	{
	if (fShutdown)
	return false;
	if (nBytes < 0)
	{
	int nErr = WSAGetLastError();
	if (nErr == WSAEMSGSIZE)
	continue;
	if (nErr == WSAEWOULDBLOCK \|\| nErr == WSAEINTR \|\| nErr == WSAEINPROGRESS)
	{
	Sleep(10);
	continue;
	}
	}
	if (!strLine.empty())
	return true;
	if (nBytes == 0)
	{
	// socket closed
	printf("socket closed\n");
	return false;
	}
	else
	{
	// socket error
	int nErr = WSAGetLastError();
	printf("recv failed: %d\n", nErr);
	return false;
	}
	}
	}
	}



	bool GetMyExternalIP2(const CService& addrConnect, const char* pszGet, const char* pszKeyword, CNetAddr& ipRet)
	{
	SOCKET hSocket;
	if (!ConnectSocket(addrConnect, hSocket))
	return error("GetMyExternalIP() : connection to %s failed", addrConnect.ToString().c_str());

	send(hSocket, pszGet, strlen(pszGet), MSG_NOSIGNAL);

	string strLine;
	while (RecvLine(hSocket, strLine))
	{
	if (strLine.empty()) // HTTP response is separated from headers by blank line
	{
	loop
	{
	if (!RecvLine(hSocket, strLine))
	{
	closesocket(hSocket);
	return false;
	}
	if (pszKeyword == NULL)
	break;
	if (strLine.find(pszKeyword) != -1)
	{
	strLine = strLine.substr(strLine.find(pszKeyword) + strlen(pszKeyword));
	break;
	}
	}
	closesocket(hSocket);
	if (strLine.find("<") != -1)
	strLine = strLine.substr(0, strLine.find("<"));
	strLine = strLine.substr(strspn(strLine.c_str(), " \t\n\r"));
	while (strLine.size() > 0 && isspace(strLine[strLine.size()-1]))
	strLine.resize(strLine.size()-1);
	CService addr(strLine,0,true);
	printf("GetMyExternalIP() received [%s] %s\n", strLine.c_str(), addr.ToString().c_str());
	if (!addr.IsValid() \|\| !addr.IsRoutable())
	return false;
	ipRet.SetIP(addr);
	return true;
	}
	}
	closesocket(hSocket);
	return error("GetMyExternalIP() : connection closed");
	}

	// We now get our external IP from the IRC server first and only use this as a backup
	bool GetMyExternalIP(CNetAddr& ipRet)
	{
	CService addrConnect;
	const char* pszGet;
	const char* pszKeyword;

	if (fNoListen\|\|fUseProxy)
	return false;

	for (int nLookup = 0; nLookup <= 1; nLookup++)
	for (int nHost = 1; nHost <= 2; nHost++)
	{
	// We should be phasing out our use of sites like these. If we need
	// replacements, we should ask for volunteers to put this simple
	// php file on their webserver that prints the client IP:
	// <?php echo $_SERVER["REMOTE_ADDR"]; ?>
	if (nHost == 1)
	{
	addrConnect = CService("91.198.22.70",80); // checkip.dyndns.org

	if (nLookup == 1)
	{
	CService addrIP("checkip.dyndns.org", 80, true);
	if (addrIP.IsValid())
	addrConnect = addrIP;
	}

	pszGet = "GET / HTTP/1.1\r\n"
	"Host: checkip.dyndns.org\r\n"
	"User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n"
	"Connection: close\r\n"
	"\r\n";

	pszKeyword = "Address:";
	}
	else if (nHost == 2)
	{
	addrConnect = CService("74.208.43.192", 80); // www.showmyip.com

	if (nLookup == 1)
	{
	CService addrIP("www.showmyip.com", 80, true);
	if (addrIP.IsValid())
	addrConnect = addrIP;
	}

	pszGet = "GET /simple/ HTTP/1.1\r\n"
	"Host: www.showmyip.com\r\n"
	"User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n"
	"Connection: close\r\n"
	"\r\n";

	pszKeyword = NULL; // Returns just IP address
	}

	if (GetMyExternalIP2(addrConnect, pszGet, pszKeyword, ipRet))
	return true;
	}

	return false;
	}

	void ThreadGetMyExternalIP(void* parg)
	{
	// Wait for IRC to get it first
	if (GetBoolArg("-irc", false))
	{
	for (int i = 0; i < 2 * 60; i++)
	{
	Sleep(1000);
	if (fGotExternalIP \|\| fShutdown)
	return;
	}
	}

	// Fallback in case IRC fails to get it
	if (GetMyExternalIP(addrLocalHost))
	{
	printf("GetMyExternalIP() returned %s\n", addrLocalHost.ToStringIP().c_str());
	if (addrLocalHost.IsRoutable())
	{
	// If we already connected to a few before we had our IP, go back and addr them.
	// setAddrKnown automatically filters any duplicate sends.
	CAddress addr(addrLocalHost);
	addr.nTime = GetAdjustedTime();
	CRITICAL_BLOCK(cs_vNodes)
	BOOST_FOREACH(CNode* pnode, vNodes)
	pnode->PushAddress(addr);
	}
	}
	}





	void AddressCurrentlyConnected(const CService& addr)
	{
	addrman.Connected(addr);
	}





	-void AbandonRequests(void (fn)(void, CDataStream&), void* param1)
	-{
	- // If the dialog might get closed before the reply comes back,
	- // call this in the destructor so it doesn't get called after it's deleted.
	- CRITICAL_BLOCK(cs_vNodes)
	- {
	- BOOST_FOREACH(CNode* pnode, vNodes)
	- {
	- CRITICAL_BLOCK(pnode->cs_mapRequests)
	- {
	- for (map<uint256, CRequestTracker>::iterator mi = pnode->mapRequests.begin(); mi != pnode->mapRequests.end();)
	- {
	- CRequestTracker& tracker = (*mi).second;
	- if (tracker.fn == fn && tracker.param1 == param1)
	- pnode->mapRequests.erase(mi++);
	- else
	- mi++;
	- }
	- }
	- }
	- }
	-}
	-
	-
	-
	-
	-
	-
	-
	-//
	-// Subscription methods for the broadcast and subscription system.
	-// Channel numbers are message numbers, i.e. MSG_TABLE and MSG_PRODUCT.
	-//
	-// The subscription system uses a meet-in-the-middle strategy.
	-// With 100,000 nodes, if senders broadcast to 1000 random nodes and receivers
	-// subscribe to 1000 random nodes, 99.995% (1 - 0.99^1000) of messages will get through.
	-//
	-
	-bool AnySubscribed(unsigned int nChannel)
	-{
	- if (pnodeLocalHost->IsSubscribed(nChannel))
	- return true;
	- CRITICAL_BLOCK(cs_vNodes)
	- BOOST_FOREACH(CNode* pnode, vNodes)
	- if (pnode->IsSubscribed(nChannel))
	- return true;
	- return false;
	-}
	-
	-bool CNode::IsSubscribed(unsigned int nChannel)
	-{
	- if (nChannel >= vfSubscribe.size())
	- return false;
	- return vfSubscribe[nChannel];
	-}
	-
	-void CNode::Subscribe(unsigned int nChannel, unsigned int nHops)
	-{
	- if (nChannel >= vfSubscribe.size())
	- return;
	-
	- if (!AnySubscribed(nChannel))
	- {
	- // Relay subscribe
	- CRITICAL_BLOCK(cs_vNodes)
	- BOOST_FOREACH(CNode* pnode, vNodes)
	- if (pnode != this)
	- pnode->PushMessage("subscribe", nChannel, nHops);
	- }
	-
	- vfSubscribe[nChannel] = true;
	-}
	-
	-void CNode::CancelSubscribe(unsigned int nChannel)
	-{
	- if (nChannel >= vfSubscribe.size())
	- return;
	-
	- // Prevent from relaying cancel if wasn't subscribed
	- if (!vfSubscribe[nChannel])
	- return;
	- vfSubscribe[nChannel] = false;
	-
	- if (!AnySubscribed(nChannel))
	- {
	- // Relay subscription cancel
	- CRITICAL_BLOCK(cs_vNodes)
	- BOOST_FOREACH(CNode* pnode, vNodes)
	- if (pnode != this)
	- pnode->PushMessage("sub-cancel", nChannel);
	- }
	-}
	-
	-
	-
	-
	-
	-
	-


	CNode* FindNode(const CNetAddr& ip)
	{
	CRITICAL_BLOCK(cs_vNodes)
	{
	BOOST_FOREACH(CNode* pnode, vNodes)
	if ((CNetAddr)pnode->addr == ip)
	return (pnode);
	}
	return NULL;
	}

	CNode* FindNode(const CService& addr)
	{
	CRITICAL_BLOCK(cs_vNodes)
	{
	BOOST_FOREACH(CNode* pnode, vNodes)
	if ((CService)pnode->addr == addr)
	return (pnode);
	}
	return NULL;
	}

	CNode* ConnectNode(CAddress addrConnect, int64 nTimeout)
	{
	if ((CNetAddr)addrConnect == (CNetAddr)addrLocalHost)
	return NULL;

	// Look for an existing connection
	CNode* pnode = FindNode((CService)addrConnect);
	if (pnode)
	{
	if (nTimeout != 0)
	pnode->AddRef(nTimeout);
	else
	pnode->AddRef();
	return pnode;
	}

	/// debug print
	printf("trying connection %s lastseen=%.1fhrs\n",
	addrConnect.ToString().c_str(),
	(double)(addrConnect.nTime - GetAdjustedTime())/3600.0);

	addrman.Attempt(addrConnect);

	// Connect
	SOCKET hSocket;
	if (ConnectSocket(addrConnect, hSocket))
	{
	/// debug print
	printf("connected %s\n", addrConnect.ToString().c_str());

	// Set to nonblocking
	#ifdef WIN32
	u_long nOne = 1;
	if (ioctlsocket(hSocket, FIONBIO, &nOne) == SOCKET_ERROR)
	printf("ConnectSocket() : ioctlsocket nonblocking setting failed, error %d\n", WSAGetLastError());
	#else
	if (fcntl(hSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
	printf("ConnectSocket() : fcntl nonblocking setting failed, error %d\n", errno);
	#endif

	// Add node
	CNode* pnode = new CNode(hSocket, addrConnect, false);
	if (nTimeout != 0)
	pnode->AddRef(nTimeout);
	else
	pnode->AddRef();
	CRITICAL_BLOCK(cs_vNodes)
	vNodes.push_back(pnode);

	pnode->nTimeConnected = GetTime();
	return pnode;
	}
	else
	{
	return NULL;
	}
	}

	void CNode::CloseSocketDisconnect()
	{
	fDisconnect = true;
	if (hSocket != INVALID_SOCKET)
	{
	if (fDebug)
	printf("%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
	printf("disconnecting node %s\n", addr.ToString().c_str());
	closesocket(hSocket);
	hSocket = INVALID_SOCKET;
	vRecv.clear();
	}
	}

	void CNode::Cleanup()
	{
	- // All of a nodes broadcasts and subscriptions are automatically torn down
	- // when it goes down, so a node has to stay up to keep its broadcast going.
	-
	- // Cancel subscriptions
	- for (unsigned int nChannel = 0; nChannel < vfSubscribe.size(); nChannel++)
	- if (vfSubscribe[nChannel])
	- CancelSubscribe(nChannel);
	}


	void CNode::PushVersion()
	{
	/// when NTP implemented, change to just nTime = GetAdjustedTime()
	int64 nTime = (fInbound ? GetAdjustedTime() : GetTime());
	CAddress addrYou = (fUseProxy ? CAddress(CService("0.0.0.0",0)) : addr);
	CAddress addrMe = (fUseProxy \|\| !addrLocalHost.IsRoutable() ? CAddress(CService("0.0.0.0",0)) : addrLocalHost);
	RAND_bytes((unsigned char*)&nLocalHostNonce, sizeof(nLocalHostNonce));
	PushMessage("version", PROTOCOL_VERSION, nLocalServices, nTime, addrYou, addrMe,
	nLocalHostNonce, FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, std::vector<string>()), nBestHeight);
	}





	std::map<CNetAddr, int64> CNode::setBanned;
	CCriticalSection CNode::cs_setBanned;

	void CNode::ClearBanned()
	{
	setBanned.clear();
	}

	bool CNode::IsBanned(CNetAddr ip)
	{
	bool fResult = false;
	CRITICAL_BLOCK(cs_setBanned)
	{
	std::map<CNetAddr, int64>::iterator i = setBanned.find(ip);
	if (i != setBanned.end())
	{
	int64 t = (*i).second;
	if (GetTime() < t)
	fResult = true;
	}
	}
	return fResult;
	}

	bool CNode::Misbehaving(int howmuch)
	{
	if (addr.IsLocal())
	{
	printf("Warning: local node %s misbehaving\n", addr.ToString().c_str());
	return false;
	}

	nMisbehavior += howmuch;
	if (nMisbehavior >= GetArg("-banscore", 100))
	{
	int64 banTime = GetTime()+GetArg("-bantime", 606024); // Default 24-hour ban
	CRITICAL_BLOCK(cs_setBanned)
	if (setBanned[addr] < banTime)
	setBanned[addr] = banTime;
	CloseSocketDisconnect();
	printf("Disconnected %s for misbehavior (score=%d)\n", addr.ToString().c_str(), nMisbehavior);
	return true;
	}
	return false;
	}












	void ThreadSocketHandler(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadSocketHandler(parg));
	try
	{
	vnThreadsRunning[THREAD_SOCKETHANDLER]++;
	ThreadSocketHandler2(parg);
	vnThreadsRunning[THREAD_SOCKETHANDLER]--;
	}
	catch (std::exception& e) {
	vnThreadsRunning[THREAD_SOCKETHANDLER]--;
	PrintException(&e, "ThreadSocketHandler()");
	} catch (...) {
	vnThreadsRunning[THREAD_SOCKETHANDLER]--;
	throw; // support pthread_cancel()
	}
	printf("ThreadSocketHandler exiting\n");
	}

	void ThreadSocketHandler2(void* parg)
	{
	printf("ThreadSocketHandler started\n");
	list<CNode*> vNodesDisconnected;
	int nPrevNodeCount = 0;

	loop
	{
	//
	// Disconnect nodes
	//
	CRITICAL_BLOCK(cs_vNodes)
	{
	// Disconnect unused nodes
	vector<CNode*> vNodesCopy = vNodes;
	BOOST_FOREACH(CNode* pnode, vNodesCopy)
	{
	if (pnode->fDisconnect \|\|
	(pnode->GetRefCount() <= 0 && pnode->vRecv.empty() && pnode->vSend.empty()))
	{
	// remove from vNodes
	vNodes.erase(remove(vNodes.begin(), vNodes.end(), pnode), vNodes.end());

	// close socket and cleanup
	pnode->CloseSocketDisconnect();
	pnode->Cleanup();

	// hold in disconnected pool until all refs are released
	pnode->nReleaseTime = max(pnode->nReleaseTime, GetTime() + 15 * 60);
	if (pnode->fNetworkNode \|\| pnode->fInbound)
	pnode->Release();
	vNodesDisconnected.push_back(pnode);
	}
	}

	// Delete disconnected nodes
	list<CNode*> vNodesDisconnectedCopy = vNodesDisconnected;
	BOOST_FOREACH(CNode* pnode, vNodesDisconnectedCopy)
	{
	// wait until threads are done using it
	if (pnode->GetRefCount() <= 0)
	{
	bool fDelete = false;
	TRY_CRITICAL_BLOCK(pnode->cs_vSend)
	TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
	TRY_CRITICAL_BLOCK(pnode->cs_mapRequests)
	TRY_CRITICAL_BLOCK(pnode->cs_inventory)
	fDelete = true;
	if (fDelete)
	{
	vNodesDisconnected.remove(pnode);
	delete pnode;
	}
	}
	}
	}
	if (vNodes.size() != nPrevNodeCount)
	{
	nPrevNodeCount = vNodes.size();
	MainFrameRepaint();
	}


	//
	// Find which sockets have data to receive
	//
	struct timeval timeout;
	timeout.tv_sec = 0;
	timeout.tv_usec = 50000; // frequency to poll pnode->vSend

	fd_set fdsetRecv;
	fd_set fdsetSend;
	fd_set fdsetError;
	FD_ZERO(&fdsetRecv);
	FD_ZERO(&fdsetSend);
	FD_ZERO(&fdsetError);
	SOCKET hSocketMax = 0;

	if(hListenSocket != INVALID_SOCKET)
	FD_SET(hListenSocket, &fdsetRecv);
	hSocketMax = max(hSocketMax, hListenSocket);
	CRITICAL_BLOCK(cs_vNodes)
	{
	BOOST_FOREACH(CNode* pnode, vNodes)
	{
	if (pnode->hSocket == INVALID_SOCKET)
	continue;
	FD_SET(pnode->hSocket, &fdsetRecv);
	FD_SET(pnode->hSocket, &fdsetError);
	hSocketMax = max(hSocketMax, pnode->hSocket);
	TRY_CRITICAL_BLOCK(pnode->cs_vSend)
	if (!pnode->vSend.empty())
	FD_SET(pnode->hSocket, &fdsetSend);
	}
	}

	vnThreadsRunning[THREAD_SOCKETHANDLER]--;
	int nSelect = select(hSocketMax + 1, &fdsetRecv, &fdsetSend, &fdsetError, &timeout);
	vnThreadsRunning[THREAD_SOCKETHANDLER]++;
	if (fShutdown)
	return;
	if (nSelect == SOCKET_ERROR)
	{
	int nErr = WSAGetLastError();
	if (hSocketMax > -1)
	{
	printf("socket select error %d\n", nErr);
	for (int i = 0; i <= hSocketMax; i++)
	FD_SET(i, &fdsetRecv);
	}
	FD_ZERO(&fdsetSend);
	FD_ZERO(&fdsetError);
	Sleep(timeout.tv_usec/1000);
	}


	//
	// Accept new connections
	//
	if (hListenSocket != INVALID_SOCKET && FD_ISSET(hListenSocket, &fdsetRecv))
	{
	struct sockaddr_in sockaddr;
	socklen_t len = sizeof(sockaddr);
	SOCKET hSocket = accept(hListenSocket, (struct sockaddr*)&sockaddr, &len);
	CAddress addr;
	int nInbound = 0;

	if (hSocket != INVALID_SOCKET)
	addr = CAddress(sockaddr);

	CRITICAL_BLOCK(cs_vNodes)
	BOOST_FOREACH(CNode* pnode, vNodes)
	if (pnode->fInbound)
	nInbound++;

	if (hSocket == INVALID_SOCKET)
	{
	if (WSAGetLastError() != WSAEWOULDBLOCK)
	printf("socket error accept failed: %d\n", WSAGetLastError());
	}
	else if (nInbound >= GetArg("-maxconnections", 125) - MAX_OUTBOUND_CONNECTIONS)
	{
	CRITICAL_BLOCK(cs_setservAddNodeAddresses)
	if (!setservAddNodeAddresses.count(addr))
	closesocket(hSocket);
	}
	else if (CNode::IsBanned(addr))
	{
	printf("connection from %s dropped (banned)\n", addr.ToString().c_str());
	closesocket(hSocket);
	}
	else
	{
	printf("accepted connection %s\n", addr.ToString().c_str());
	CNode* pnode = new CNode(hSocket, addr, true);
	pnode->AddRef();
	CRITICAL_BLOCK(cs_vNodes)
	vNodes.push_back(pnode);
	}
	}


	//
	// Service each socket
	//
	vector<CNode*> vNodesCopy;
	CRITICAL_BLOCK(cs_vNodes)
	{
	vNodesCopy = vNodes;
	BOOST_FOREACH(CNode* pnode, vNodesCopy)
	pnode->AddRef();
	}
	BOOST_FOREACH(CNode* pnode, vNodesCopy)
	{
	if (fShutdown)
	return;

	//
	// Receive
	//
	if (pnode->hSocket == INVALID_SOCKET)
	continue;
	if (FD_ISSET(pnode->hSocket, &fdsetRecv) \|\| FD_ISSET(pnode->hSocket, &fdsetError))
	{
	TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
	{
	CDataStream& vRecv = pnode->vRecv;
	unsigned int nPos = vRecv.size();

	if (nPos > ReceiveBufferSize()) {
	if (!pnode->fDisconnect)
	printf("socket recv flood control disconnect (%d bytes)\n", vRecv.size());
	pnode->CloseSocketDisconnect();
	}
	else {
	// typical socket buffer is 8K-64K
	char pchBuf[0x10000];
	int nBytes = recv(pnode->hSocket, pchBuf, sizeof(pchBuf), MSG_DONTWAIT);
	if (nBytes > 0)
	{
	vRecv.resize(nPos + nBytes);
	memcpy(&vRecv[nPos], pchBuf, nBytes);
	pnode->nLastRecv = GetTime();
	}
	else if (nBytes == 0)
	{
	// socket closed gracefully
	if (!pnode->fDisconnect)
	printf("socket closed\n");
	pnode->CloseSocketDisconnect();
	}
	else if (nBytes < 0)
	{
	// error
	int nErr = WSAGetLastError();
	if (nErr != WSAEWOULDBLOCK && nErr != WSAEMSGSIZE && nErr != WSAEINTR && nErr != WSAEINPROGRESS)
	{
	if (!pnode->fDisconnect)
	printf("socket recv error %d\n", nErr);
	pnode->CloseSocketDisconnect();
	}
	}
	}
	}
	}

	//
	// Send
	//
	if (pnode->hSocket == INVALID_SOCKET)
	continue;
	if (FD_ISSET(pnode->hSocket, &fdsetSend))
	{
	TRY_CRITICAL_BLOCK(pnode->cs_vSend)
	{
	CDataStream& vSend = pnode->vSend;
	if (!vSend.empty())
	{
	int nBytes = send(pnode->hSocket, &vSend[0], vSend.size(), MSG_NOSIGNAL \| MSG_DONTWAIT);
	if (nBytes > 0)
	{
	vSend.erase(vSend.begin(), vSend.begin() + nBytes);
	pnode->nLastSend = GetTime();
	}
	else if (nBytes < 0)
	{
	// error
	int nErr = WSAGetLastError();
	if (nErr != WSAEWOULDBLOCK && nErr != WSAEMSGSIZE && nErr != WSAEINTR && nErr != WSAEINPROGRESS)
	{
	printf("socket send error %d\n", nErr);
	pnode->CloseSocketDisconnect();
	}
	}
	if (vSend.size() > SendBufferSize()) {
	if (!pnode->fDisconnect)
	printf("socket send flood control disconnect (%d bytes)\n", vSend.size());
	pnode->CloseSocketDisconnect();
	}
	}
	}
	}

	//
	// Inactivity checking
	//
	if (pnode->vSend.empty())
	pnode->nLastSendEmpty = GetTime();
	if (GetTime() - pnode->nTimeConnected > 60)
	{
	if (pnode->nLastRecv == 0 \|\| pnode->nLastSend == 0)
	{
	printf("socket no message in first 60 seconds, %d %d\n", pnode->nLastRecv != 0, pnode->nLastSend != 0);
	pnode->fDisconnect = true;
	}
	else if (GetTime() - pnode->nLastSend > 9060 && GetTime() - pnode->nLastSendEmpty > 9060)
	{
	printf("socket not sending\n");
	pnode->fDisconnect = true;
	}
	else if (GetTime() - pnode->nLastRecv > 90*60)
	{
	printf("socket inactivity timeout\n");
	pnode->fDisconnect = true;
	}
	}
	}
	CRITICAL_BLOCK(cs_vNodes)
	{
	BOOST_FOREACH(CNode* pnode, vNodesCopy)
	pnode->Release();
	}

	Sleep(10);
	}
	}









	#ifdef USE_UPNP
	void ThreadMapPort(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadMapPort(parg));
	try
	{
	vnThreadsRunning[THREAD_UPNP]++;
	ThreadMapPort2(parg);
	vnThreadsRunning[THREAD_UPNP]--;
	}
	catch (std::exception& e) {
	vnThreadsRunning[THREAD_UPNP]--;
	PrintException(&e, "ThreadMapPort()");
	} catch (...) {
	vnThreadsRunning[THREAD_UPNP]--;
	PrintException(NULL, "ThreadMapPort()");
	}
	printf("ThreadMapPort exiting\n");
	}

	void ThreadMapPort2(void* parg)
	{
	printf("ThreadMapPort started\n");

	char port[6];
	sprintf(port, "%d", GetListenPort());

	const char * multicastif = 0;
	const char * minissdpdpath = 0;
	struct UPNPDev * devlist = 0;
	char lanaddr[64];

	#ifndef UPNPDISCOVER_SUCCESS
	/* miniupnpc 1.5 */
	devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0);
	#else
	/* miniupnpc 1.6 */
	int error = 0;
	devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0, 0, &error);
	#endif

	struct UPNPUrls urls;
	struct IGDdatas data;
	int r;

	r = UPNP_GetValidIGD(devlist, &urls, &data, lanaddr, sizeof(lanaddr));
	if (r == 1)
	{
	if (!addrLocalHost.IsRoutable())
	{
	char externalIPAddress[40];
	r = UPNP_GetExternalIPAddress(urls.controlURL, data.first.servicetype, externalIPAddress);
	if(r != UPNPCOMMAND_SUCCESS)
	printf("UPnP: GetExternalIPAddress() returned %d\n", r);
	else
	{
	if(externalIPAddress[0])
	{
	printf("UPnP: ExternalIPAddress = %s\n", externalIPAddress);
	CAddress addrExternalFromUPnP(CService(externalIPAddress, 0), nLocalServices);
	if (addrExternalFromUPnP.IsRoutable())
	addrLocalHost = addrExternalFromUPnP;
	}
	else
	printf("UPnP: GetExternalIPAddress failed.\n");
	}
	}

	string strDesc = "Bitcoin " + FormatFullVersion();
	#ifndef UPNPDISCOVER_SUCCESS
	/* miniupnpc 1.5 */
	r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
	port, port, lanaddr, strDesc.c_str(), "TCP", 0);
	#else
	/* miniupnpc 1.6 */
	r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
	port, port, lanaddr, strDesc.c_str(), "TCP", 0, "0");
	#endif

	if(r!=UPNPCOMMAND_SUCCESS)
	printf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
	port, port, lanaddr, r, strupnperror(r));
	else
	printf("UPnP Port Mapping successful.\n");
	int i = 1;
	loop {
	if (fShutdown \|\| !fUseUPnP)
	{
	r = UPNP_DeletePortMapping(urls.controlURL, data.first.servicetype, port, "TCP", 0);
	printf("UPNP_DeletePortMapping() returned : %d\n", r);
	freeUPNPDevlist(devlist); devlist = 0;
	FreeUPNPUrls(&urls);
	return;
	}
	if (i % 600 == 0) // Refresh every 20 minutes
	{
	#ifndef UPNPDISCOVER_SUCCESS
	/* miniupnpc 1.5 */
	r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
	port, port, lanaddr, strDesc.c_str(), "TCP", 0);
	#else
	/* miniupnpc 1.6 */
	r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
	port, port, lanaddr, strDesc.c_str(), "TCP", 0, "0");
	#endif

	if(r!=UPNPCOMMAND_SUCCESS)
	printf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
	port, port, lanaddr, r, strupnperror(r));
	else
	printf("UPnP Port Mapping successful.\n");;
	}
	Sleep(2000);
	i++;
	}
	} else {
	printf("No valid UPnP IGDs found\n");
	freeUPNPDevlist(devlist); devlist = 0;
	if (r != 0)
	FreeUPNPUrls(&urls);
	loop {
	if (fShutdown \|\| !fUseUPnP)
	return;
	Sleep(2000);
	}
	}
	}

	void MapPort(bool fMapPort)
	{
	if (fUseUPnP != fMapPort)
	{
	fUseUPnP = fMapPort;
	}
	if (fUseUPnP && vnThreadsRunning[THREAD_UPNP] < 1)
	{
	if (!CreateThread(ThreadMapPort, NULL))
	printf("Error: ThreadMapPort(ThreadMapPort) failed\n");
	}
	}
	#else
	void MapPort(bool /* unused fMapPort */)
	{
	// Intentionally left blank.
	}
	#endif









	// DNS seeds
	// Each pair gives a source name and a seed name.
	// The first name is used as information source for addrman.
	// The second name should resolve to a list of seed addresses.
	static const char *strDNSSeed[][2] = {
	{"xf2.org", "bitseed.xf2.org"},
	{"bluematt.me", "dnsseed.bluematt.me"},
	{"bitcoin.sipa.be", "seed.bitcoin.sipa.be"},
	{"dashjr.org", "dnsseed.bitcoin.dashjr.org"},
	};

	void ThreadDNSAddressSeed(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadDNSAddressSeed(parg));
	try
	{
	vnThreadsRunning[THREAD_DNSSEED]++;
	ThreadDNSAddressSeed2(parg);
	vnThreadsRunning[THREAD_DNSSEED]--;
	}
	catch (std::exception& e) {
	vnThreadsRunning[THREAD_DNSSEED]--;
	PrintException(&e, "ThreadDNSAddressSeed()");
	} catch (...) {
	vnThreadsRunning[THREAD_DNSSEED]--;
	throw; // support pthread_cancel()
	}
	printf("ThreadDNSAddressSeed exiting\n");
	}

	void ThreadDNSAddressSeed2(void* parg)
	{
	printf("ThreadDNSAddressSeed started\n");
	int found = 0;

	if (!fTestNet)
	{
	printf("Loading addresses from DNS seeds (could take a while)\n");

	for (int seed_idx = 0; seed_idx < ARRAYLEN(strDNSSeed); seed_idx++) {
	vector<CNetAddr> vaddr;
	vector<CAddress> vAdd;
	if (LookupHost(strDNSSeed[seed_idx][1], vaddr))
	{
	BOOST_FOREACH(CNetAddr& ip, vaddr)
	{
	int nOneDay = 24*3600;
	CAddress addr = CAddress(CService(ip, GetDefaultPort()));
	addr.nTime = GetTime() - 3nOneDay - GetRand(4nOneDay); // use a random age between 3 and 7 days old
	vAdd.push_back(addr);
	found++;
	}
	}
	addrman.Add(vAdd, CNetAddr(strDNSSeed[seed_idx][0], true));
	}
	}

	printf("%d addresses found from DNS seeds\n", found);
	}












	unsigned int pnSeed[] =
	{
	0x959bd347, 0xf8de42b2, 0x73bc0518, 0xea6edc50, 0x21b00a4d, 0xc725b43d, 0xd665464d, 0x1a2a770e,
	0x27c93946, 0x65b2fa46, 0xb80ae255, 0x66b3b446, 0xb1877a3e, 0x6ee89e3e, 0xc3175b40, 0x2a01a83c,
	0x95b1363a, 0xa079ad3d, 0xe6ca801f, 0x027f4f4a, 0x34f7f03a, 0xf790f04a, 0x16ca801f, 0x2f4d5e40,
	0x3a4d5e40, 0xc43a322e, 0xc8159753, 0x14d4724c, 0x7919a118, 0xe0bdb34e, 0x68a16b2e, 0xff64b44d,
	0x6099115b, 0x9b57b05b, 0x7bd1b4ad, 0xdf95944f, 0x29d2b73d, 0xafa8db79, 0xe247ba41, 0x24078348,
	0xf722f03c, 0x33567ebc, 0xace64ed4, 0x984d3932, 0xb5f34e55, 0x27b7024d, 0x94579247, 0x8894042e,
	0x9357d34c, 0x1063c24b, 0xcaa228b1, 0xa3c5a8b2, 0x5dc64857, 0xa2c23643, 0xa8369a54, 0x31203077,
	0x00707c5c, 0x09fc0b3a, 0x272e9e2e, 0xf80f043e, 0x9449ca3e, 0x5512c33e, 0xd106b555, 0xe8024157,
	0xe288ec29, 0xc79c5461, 0xafb63932, 0xdb02ab4b, 0x0e512777, 0x8a145a4c, 0xb201ff4f, 0x5e09314b,
	0xcd9bfbcd, 0x1c023765, 0x4394e75c, 0xa728bd4d, 0x65331552, 0xa98420b1, 0x89ecf559, 0x6e80801f,
	0xf404f118, 0xefd62b51, 0x05918346, 0x9b186d5f, 0xacabab46, 0xf912e255, 0xc188ea62, 0xcc55734e,
	0xc668064d, 0xd77a4558, 0x46201c55, 0xf17dfc80, 0xf7142f2e, 0x87bfb718, 0x8aa54fb2, 0xc451d518,
	0xc4ae8831, 0x8dd44d55, 0x5bbd206c, 0x64536b5d, 0x5c667e60, 0x3b064242, 0xfe963a42, 0xa28e6dc8,
	0xe8a9604a, 0xc989464e, 0xd124a659, 0x50065140, 0xa44dfe5e, 0x1079e655, 0x3fb986d5, 0x47895b18,
	0x7d3ce4ad, 0x4561ba50, 0x296eec62, 0x255b41ad, 0xaed35ec9, 0x55556f12, 0xc7d3154d, 0x3297b65d,
	0x8930121f, 0xabf42e4e, 0x4a29e044, 0x1212685d, 0x676c1e40, 0xce009744, 0x383a8948, 0xa2dbd0ad,
	0xecc2564d, 0x07dbc252, 0x887ee24b, 0x5171644c, 0x6bb798c1, 0x847f495d, 0x4cbb7145, 0x3bb81c32,
	0x45eb262e, 0xc8015a4e, 0x250a361b, 0xf694f946, 0xd64a183e, 0xd4f1dd59, 0x8f20ffd4, 0x51d9e55c,
	0x09521763, 0x5e02002e, 0x32c8074d, 0xe685762e, 0x8290b0bc, 0x762a922e, 0xfc5ee754, 0x83a24829,
	0x775b224d, 0x6295bb4d, 0x38ec0555, 0xbffbba50, 0xe5560260, 0x86b16a7c, 0xd372234e, 0x49a3c24b,
	0x2f6a171f, 0x4d75ed60, 0xae94115b, 0xcb543744, 0x63080c59, 0x3f9c724c, 0xc977ce18, 0x532efb18,
	0x69dc3b2e, 0x5f94d929, 0x1732bb4d, 0x9c814b4d, 0xe6b3762e, 0xc024f662, 0x8face35b, 0x6b5b044d,
	0x798c7b57, 0x79a6b44c, 0x067d3057, 0xf9e94e5f, 0x91cbe15b, 0x71405eb2, 0x2662234e, 0xcbcc4a6d,
	0xbf69d54b, 0xa79b4e55, 0xec6d3e51, 0x7c0b3c02, 0x60f83653, 0x24c1e15c, 0x1110b62e, 0x10350f59,
	0xa56f1d55, 0x3509e7a9, 0xeb128354, 0x14268e2e, 0x934e28bc, 0x8e32692e, 0x8331a21f, 0x3e633932,
	0xc812b12e, 0xc684bf2e, 0x80112d2e, 0xe0ddc96c, 0xc630ca4a, 0x5c09b3b2, 0x0b580518, 0xc8e9d54b,
	0xd169aa43, 0x17d0d655, 0x1d029963, 0x7ff87559, 0xcb701f1f, 0x6fa3e85d, 0xe45e9a54, 0xf05d1802,
	0x44d03b2e, 0x837b692e, 0xccd4354e, 0x3d6da13c, 0x3423084d, 0xf707c34a, 0x55f6db3a, 0xad26e442,
	0x6233a21f, 0x09e80e59, 0x8caeb54d, 0xbe870941, 0xb407d20e, 0x20b51018, 0x56fb152e, 0x460d2a4e,
	0xbb9a2946, 0x560eb12e, 0xed83dd29, 0xd6724f53, 0xa50aafb8, 0x451346d9, 0x88348e2e, 0x7312fead,
	0x8ecaf96f, 0x1bda4e5f, 0xf1671e40, 0x3c8c3e3b, 0x4716324d, 0xdde24ede, 0xf98cd17d, 0xa91d4644,
	0x28124eb2, 0x147d5129, 0xd022042e, 0x61733d3b, 0xad0d5e02, 0x8ce2932e, 0xe5c18502, 0x549c1e32,
	0x9685801f, 0x86e217ad, 0xd948214b, 0x4110f462, 0x3a2e894e, 0xbd35492e, 0x87e0d558, 0x64b8ef7d,
	0x7c3eb962, 0x72a84b3e, 0x7cd667c9, 0x28370a2e, 0x4bc60e7b, 0x6fc1ec60, 0x14a6983f, 0x86739a4b,
	0x46954e5f, 0x32e2e15c, 0x2e9326cf, 0xe5801c5e, 0x379607b2, 0x32151145, 0xf0e39744, 0xacb54c55,
	0xa37dfb60, 0x83b55cc9, 0x388f7ca5, 0x15034f5f, 0x3e94965b, 0x68e0ffad, 0x35280f59, 0x8fe190cf,
	0x7c6ba5b2, 0xa5e9db43, 0x4ee1fc60, 0xd9d94e5f, 0x04040677, 0x0ea9b35e, 0x5961f14f, 0x67fda063,
	0xa48a5a31, 0xc6524e55, 0x283d325e, 0x3f37515f, 0x96b94b3e, 0xacce620e, 0x6481cc5b, 0xa4a06d4b,
	0x9e95d2d9, 0xe40c03d5, 0xc2f4514b, 0xb79aad44, 0xf64be843, 0xb2064070, 0xfca00455, 0x429dfa4e,
	0x2323f173, 0xeda4185e, 0xabd5227d, 0x9efd4d58, 0xb1104758, 0x4811e955, 0xbd9ab355, 0xe921f44b,
	0x9f166dce, 0x09e279b2, 0xe0c9ac7b, 0x7901a5ad, 0xa145d4b0, 0x79104671, 0xec31e35a, 0x4fe0b555,
	0xc7d9cbad, 0xad057f55, 0xe94cc759, 0x7fe0b043, 0xe4529f2e, 0x0d4dd4b2, 0x9f11a54d, 0x031e2e4e,
	0xe6014f5f, 0x11d1ca6c, 0x26bd7f61, 0xeb86854f, 0x4d347b57, 0x116bbe2e, 0xdba7234e, 0x7bcbfd2e,
	0x174dd4b2, 0x6686762e, 0xb089ba50, 0xc6258246, 0x087e767b, 0xc4a8cb4a, 0x595dba50, 0x7f0ae502,
	0x7b1dbd5a, 0xa0603492, 0x57d1af4b, 0x9e21ffd4, 0x6393064d, 0x7407376e, 0xe484762e, 0x122a4e53,
	0x4a37aa43, 0x3888a6be, 0xee77864e, 0x039c8dd5, 0x688d89af, 0x0e988f62, 0x08218246, 0xfc2f8246,
	0xd1d97040, 0xd64cd4b2, 0x5ae4a6b8, 0x7d0de9bc, 0x8d304d61, 0x06c5c672, 0xa4c8bd4d, 0xe0fd373b,
	0x575ebe4d, 0x72d26277, 0x55570f55, 0x77b154d9, 0xe214293a, 0xfc740f4b, 0xfe3f6a57, 0xa9c55f02,
	0xae4054db, 0x2394d918, 0xb511b24a, 0xb8741ab2, 0x0758e65e, 0xc7b5795b, 0xb0a30a4c, 0xaf7f170c,
	0xf3b4762e, 0x8179576d, 0x738a1581, 0x4b95b64c, 0x9829b618, 0x1bea932e, 0x7bdeaa4b, 0xcb5e0281,
	0x65618f54, 0x0658474b, 0x27066acf, 0x40556d65, 0x7d204d53, 0xf28bc244, 0xdce23455, 0xadc0ff54,
	0x3863c948, 0xcee34e5f, 0xdeb85e02, 0x2ed17a61, 0x6a7b094d, 0x7f0cfc40, 0x59603f54, 0x3220afbc,
	0xb5dfd962, 0x125d21c0, 0x13f8d243, 0xacfefb4e, 0x86c2c147, 0x3d8bbd59, 0xbd02a21f, 0x2593042e,
	0xc6a17a7c, 0x28925861, 0xb487ed44, 0xb5f4fd6d, 0x90c28a45, 0x5a14f74d, 0x43d71b4c, 0x728ebb5d,
	0x885bf950, 0x08134dd0, 0x38ec046e, 0xc575684b, 0x50082d2e, 0xa2f47757, 0x270f86ae, 0xf3ff6462,
	0x10ed3f4e, 0x4b58d462, 0xe01ce23e, 0x8c5b092e, 0x63e52f4e, 0x22c1e85d, 0xa908f54e, 0x8591624f,
	0x2c0fb94e, 0xa280ba3c, 0xb6f41b4c, 0x24f9aa47, 0x27201647, 0x3a3ea6dc, 0xa14fc3be, 0x3c34bdd5,
	0x5b8d4f5b, 0xaadeaf4b, 0xc71cab50, 0x15697a4c, 0x9a1a734c, 0x2a037d81, 0x2590bd59, 0x48ec2741,
	0x53489c5b, 0x7f00314b, 0x2170d362, 0xf2e92542, 0x42c10b44, 0x98f0f118, 0x883a3456, 0x099a932e,
	0xea38f7bc, 0x644e9247, 0xbb61b62e, 0x30e0863d, 0x5f51be54, 0x207215c7, 0x5f306c45, 0xaa7f3932,
	0x98da7d45, 0x4e339b59, 0x2e411581, 0xa808f618, 0xad2c0c59, 0x54476741, 0x09e99fd1, 0x5db8f752,
	0xc16df8bd, 0x1dd4b44f, 0x106edf2e, 0x9e15c180, 0x2ad6b56f, 0x633a5332, 0xff33787c, 0x077cb545,
	0x6610be6d, 0x75aad2c4, 0x72fb4d5b, 0xe81e0f59, 0x576f6332, 0x47333373, 0x351ed783, 0x2d90fb50,
	0x8d5e0f6c, 0x5b27a552, 0xdb293ebb, 0xe55ef950, 0x4b133ad8, 0x75df975a, 0x7b6a8740, 0xa899464b,
	0xfab15161, 0x10f8b64d, 0xd055ea4d, 0xee8e146b, 0x4b14afb8, 0x4bc1c44a, 0x9b961dcc, 0xd111ff43,
	0xfca0b745, 0xc800e412, 0x0afad9d1, 0xf751c350, 0xf9f0cccf, 0xa290a545, 0x8ef13763, 0x7ec70d59,
	0x2b066acf, 0x65496c45, 0xade02c1b, 0xae6eb077, 0x92c1e65b, 0xc064e6a9, 0xc649e56d, 0x5287a243,
	0x36de4f5b, 0x5b1df6ad, 0x65c39a59, 0xdba805b2, 0x20067aa8, 0x6457e56d, 0x3cee26cf, 0xfd3ff26d,
	0x04f86d4a, 0x06b8e048, 0xa93bcd5c, 0x91135852, 0xbe90a643, 0x8fa0094d, 0x06d8215f, 0x2677094d,
	0xd735685c, 0x164a00c9, 0x5209ac5f, 0xa9564c5c, 0x3b504f5f, 0xcc826bd0, 0x4615042e, 0x5fe13b4a,
	0x8c81b86d, 0x879ab68c, 0x1de564b8, 0x434487d8, 0x2dcb1b63, 0x82ab524a, 0xb0676abb, 0xa13d9c62,
	0xdbb5b86d, 0x5b7f4b59, 0xaddfb44d, 0xad773532, 0x3997054c, 0x72cebd89, 0xb194544c, 0xc5b8046e,
	0x6e1adeb2, 0xaa5abb51, 0xefb54b44, 0x15efc54f, 0xe9f1bc4d, 0x5f401b6c, 0x97f018ad, 0xc82f9252,
	0x2cdc762e, 0x8e52e56d, 0x1827175e, 0x9b7d7d80, 0xb2ad6845, 0x51065140, 0x71180a18, 0x5b27006c,
	0x0621e255, 0x721cbe58, 0x670c0cb8, 0xf8bd715d, 0xe0bdc5d9, 0xed843501, 0x4b84554d, 0x7f1a18bc,
	0x53bcaf47, 0x5729d35f, 0xf0dda246, 0x22382bd0, 0x4d641fb0, 0x316afcde, 0x50a22f1f, 0x73608046,
	0xc461d84a, 0xb2dbe247,
	};

	void DumpAddresses()
	{
	CAddrDB adb;
	adb.WriteAddrman(addrman);
	}

	void ThreadDumpAddress2(void* parg)
	{
	vnThreadsRunning[THREAD_DUMPADDRESS]++;
	while (!fShutdown)
	{
	DumpAddresses();
	vnThreadsRunning[THREAD_DUMPADDRESS]--;
	Sleep(100000);
	vnThreadsRunning[THREAD_DUMPADDRESS]++;
	}
	vnThreadsRunning[THREAD_DUMPADDRESS]--;
	}

	void ThreadDumpAddress(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadDumpAddress(parg));
	try
	{
	ThreadDumpAddress2(parg);
	}
	catch (std::exception& e) {
	PrintException(&e, "ThreadDumpAddress()");
	}
	printf("ThreadDumpAddress exiting\n");
	}

	void ThreadOpenConnections(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadOpenConnections(parg));
	try
	{
	vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
	ThreadOpenConnections2(parg);
	vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
	}
	catch (std::exception& e) {
	vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
	PrintException(&e, "ThreadOpenConnections()");
	} catch (...) {
	vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
	PrintException(NULL, "ThreadOpenConnections()");
	}
	printf("ThreadOpenConnections exiting\n");
	}

	void ThreadOpenConnections2(void* parg)
	{
	printf("ThreadOpenConnections started\n");

	// Connect to specific addresses
	if (mapArgs.count("-connect"))
	{
	for (int64 nLoop = 0;; nLoop++)
	{
	BOOST_FOREACH(string strAddr, mapMultiArgs["-connect"])
	{
	CAddress addr(CService(strAddr, GetDefaultPort(), fAllowDNS));
	if (addr.IsValid())
	OpenNetworkConnection(addr);
	for (int i = 0; i < 10 && i < nLoop; i++)
	{
	Sleep(500);
	if (fShutdown)
	return;
	}
	}
	}
	}

	// Initiate network connections
	int64 nStart = GetTime();
	loop
	{
	int nOutbound = 0;

	vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
	Sleep(500);
	vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
	if (fShutdown)
	return;

	// Limit outbound connections
	loop
	{
	nOutbound = 0;
	CRITICAL_BLOCK(cs_vNodes)
	BOOST_FOREACH(CNode* pnode, vNodes)
	if (!pnode->fInbound)
	nOutbound++;
	int nMaxOutboundConnections = MAX_OUTBOUND_CONNECTIONS;
	nMaxOutboundConnections = min(nMaxOutboundConnections, (int)GetArg("-maxconnections", 125));
	if (nOutbound < nMaxOutboundConnections)
	break;
	vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
	Sleep(2000);
	vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
	if (fShutdown)
	return;
	}

	bool fAddSeeds = false;

	// Add seed nodes if IRC isn't working
	bool fTOR = (fUseProxy && addrProxy.GetPort() == 9050);
	if (addrman.size()==0 && (GetTime() - nStart > 60 \|\| fTOR) && !fTestNet)
	{
	std::vector<CAddress> vAdd;
	for (int i = 0; i < ARRAYLEN(pnSeed); i++)
	{
	// It'll only connect to one or two seed nodes because once it connects,
	// it'll get a pile of addresses with newer timestamps.
	// Seed nodes are given a random 'last seen time' of between one and two
	// weeks ago.
	const int64 nOneWeek = 72460*60;
	struct in_addr ip;
	memcpy(&ip, &pnSeed[i], sizeof(ip));
	CAddress addr(CService(ip, GetDefaultPort()));
	addr.nTime = GetTime()-GetRand(nOneWeek)-nOneWeek;
	vAdd.push_back(addr);
	}
	addrman.Add(vAdd, CNetAddr("127.0.0.1"));
	}

	//
	// Choose an address to connect to based on most recently seen
	//
	CAddress addrConnect;
	int64 nBest = std::numeric_limits<int64>::min();

	// Only connect to one address per a.b.?.? range.
	// Do this here so we don't have to critsect vNodes inside mapAddresses critsect.
	set<vector<unsigned char> > setConnected;
	CRITICAL_BLOCK(cs_vNodes)
	BOOST_FOREACH(CNode* pnode, vNodes)
	setConnected.insert(pnode->addr.GetGroup());

	int64 nANow = GetAdjustedTime();

	int nTries = 0;
	loop
	{
	// use an nUnkBias between 10 (no outgoing connections) and 90 (8 outgoing connections)
	CAddress addr = addrman.Select(10 + min(nOutbound,8)*10);

	// if we selected an invalid address, restart
	if (!addr.IsIPv4() \|\| !addr.IsValid() \|\| setConnected.count(addr.GetGroup()) \|\| addr == addrLocalHost)
	break;

	nTries++;

	// only consider very recently tried nodes after 30 failed attempts
	if (nANow - addr.nLastTry < 600 && nTries < 30)
	continue;

	// do not allow non-default ports, unless after 50 invalid addresses selected already
	if (addr.GetPort() != GetDefaultPort() && nTries < 50)
	continue;

	addrConnect = addr;
	break;
	}

	if (addrConnect.IsValid())
	OpenNetworkConnection(addrConnect);
	}
	}

	void ThreadOpenAddedConnections(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadOpenAddedConnections(parg));
	try
	{
	vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
	ThreadOpenAddedConnections2(parg);
	vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
	}
	catch (std::exception& e) {
	vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
	PrintException(&e, "ThreadOpenAddedConnections()");
	} catch (...) {
	vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
	PrintException(NULL, "ThreadOpenAddedConnections()");
	}
	printf("ThreadOpenAddedConnections exiting\n");
	}

	void ThreadOpenAddedConnections2(void* parg)
	{
	printf("ThreadOpenAddedConnections started\n");

	if (mapArgs.count("-addnode") == 0)
	return;

	vector<vector<CService> > vservAddressesToAdd(0);
	BOOST_FOREACH(string& strAddNode, mapMultiArgs["-addnode"])
	{
	vector<CService> vservNode(0);
	if(Lookup(strAddNode.c_str(), vservNode, GetDefaultPort(), fAllowDNS, 0))
	{
	vservAddressesToAdd.push_back(vservNode);
	CRITICAL_BLOCK(cs_setservAddNodeAddresses)
	BOOST_FOREACH(CService& serv, vservNode)
	setservAddNodeAddresses.insert(serv);
	}
	}
	loop
	{
	vector<vector<CService> > vservConnectAddresses = vservAddressesToAdd;
	// Attempt to connect to each IP for each addnode entry until at least one is successful per addnode entry
	// (keeping in mind that addnode entries can have many IPs if fAllowDNS)
	CRITICAL_BLOCK(cs_vNodes)
	BOOST_FOREACH(CNode* pnode, vNodes)
	for (vector<vector<CService> >::iterator it = vservConnectAddresses.begin(); it != vservConnectAddresses.end(); it++)
	BOOST_FOREACH(CService& addrNode, *(it))
	if (pnode->addr == addrNode)
	{
	it = vservConnectAddresses.erase(it);
	it--;
	break;
	}
	BOOST_FOREACH(vector<CService>& vserv, vservConnectAddresses)
	{
	OpenNetworkConnection(CAddress(*(vserv.begin())));
	Sleep(500);
	if (fShutdown)
	return;
	}
	if (fShutdown)
	return;
	vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
	Sleep(120000); // Retry every 2 minutes
	vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
	if (fShutdown)
	return;
	}
	}

	bool OpenNetworkConnection(const CAddress& addrConnect)
	{
	//
	// Initiate outbound network connection
	//
	if (fShutdown)
	return false;
	if ((CNetAddr)addrConnect == (CNetAddr)addrLocalHost \|\| !addrConnect.IsIPv4() \|\|
	FindNode((CNetAddr)addrConnect) \|\| CNode::IsBanned(addrConnect))
	return false;

	vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
	CNode* pnode = ConnectNode(addrConnect);
	vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
	if (fShutdown)
	return false;
	if (!pnode)
	return false;
	pnode->fNetworkNode = true;

	return true;
	}








	void ThreadMessageHandler(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadMessageHandler(parg));
	try
	{
	vnThreadsRunning[THREAD_MESSAGEHANDLER]++;
	ThreadMessageHandler2(parg);
	vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
	}
	catch (std::exception& e) {
	vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
	PrintException(&e, "ThreadMessageHandler()");
	} catch (...) {
	vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
	PrintException(NULL, "ThreadMessageHandler()");
	}
	printf("ThreadMessageHandler exiting\n");
	}

	void ThreadMessageHandler2(void* parg)
	{
	printf("ThreadMessageHandler started\n");
	SetThreadPriority(THREAD_PRIORITY_BELOW_NORMAL);
	while (!fShutdown)
	{
	vector<CNode*> vNodesCopy;
	CRITICAL_BLOCK(cs_vNodes)
	{
	vNodesCopy = vNodes;
	BOOST_FOREACH(CNode* pnode, vNodesCopy)
	pnode->AddRef();
	}

	// Poll the connected nodes for messages
	CNode* pnodeTrickle = NULL;
	if (!vNodesCopy.empty())
	pnodeTrickle = vNodesCopy[GetRand(vNodesCopy.size())];
	BOOST_FOREACH(CNode* pnode, vNodesCopy)
	{
	// Receive messages
	TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
	ProcessMessages(pnode);
	if (fShutdown)
	return;

	// Send messages
	TRY_CRITICAL_BLOCK(pnode->cs_vSend)
	SendMessages(pnode, pnode == pnodeTrickle);
	if (fShutdown)
	return;
	}

	CRITICAL_BLOCK(cs_vNodes)
	{
	BOOST_FOREACH(CNode* pnode, vNodesCopy)
	pnode->Release();
	}

	// Wait and allow messages to bunch up.
	// Reduce vnThreadsRunning so StopNode has permission to exit while
	// we're sleeping, but we must always check fShutdown after doing this.
	vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
	Sleep(100);
	if (fRequestShutdown)
	Shutdown(NULL);
	vnThreadsRunning[THREAD_MESSAGEHANDLER]++;
	if (fShutdown)
	return;
	}
	}






	bool BindListenPort(string& strError)
	{
	strError = "";
	int nOne = 1;
	addrLocalHost.SetPort(GetListenPort());

	#ifdef WIN32
	// Initialize Windows Sockets
	WSADATA wsadata;
	int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
	if (ret != NO_ERROR)
	{
	strError = strprintf("Error: TCP/IP socket library failed to start (WSAStartup returned error %d)", ret);
	printf("%s\n", strError.c_str());
	return false;
	}
	#endif

	// Create socket for listening for incoming connections
	hListenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	if (hListenSocket == INVALID_SOCKET)
	{
	strError = strprintf("Error: Couldn't open socket for incoming connections (socket returned error %d)", WSAGetLastError());
	printf("%s\n", strError.c_str());
	return false;
	}

	#ifdef SO_NOSIGPIPE
	// Different way of disabling SIGPIPE on BSD
	setsockopt(hListenSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&nOne, sizeof(int));
	#endif

	#ifndef WIN32
	// Allow binding if the port is still in TIME_WAIT state after
	// the program was closed and restarted. Not an issue on windows.
	setsockopt(hListenSocket, SOL_SOCKET, SO_REUSEADDR, (void*)&nOne, sizeof(int));
	#endif

	#ifdef WIN32
	// Set to nonblocking, incoming connections will also inherit this
	if (ioctlsocket(hListenSocket, FIONBIO, (u_long*)&nOne) == SOCKET_ERROR)
	#else
	if (fcntl(hListenSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
	#endif
	{
	strError = strprintf("Error: Couldn't set properties on socket for incoming connections (error %d)", WSAGetLastError());
	printf("%s\n", strError.c_str());
	return false;
	}

	// The sockaddr_in structure specifies the address family,
	// IP address, and port for the socket that is being bound
	struct sockaddr_in sockaddr;
	memset(&sockaddr, 0, sizeof(sockaddr));
	sockaddr.sin_family = AF_INET;
	sockaddr.sin_addr.s_addr = INADDR_ANY; // bind to all IPs on this computer
	sockaddr.sin_port = htons(GetListenPort());
	if (::bind(hListenSocket, (struct sockaddr*)&sockaddr, sizeof(sockaddr)) == SOCKET_ERROR)
	{
	int nErr = WSAGetLastError();
	if (nErr == WSAEADDRINUSE)
	strError = strprintf(_("Unable to bind to port %d on this computer. Bitcoin is probably already running."), ntohs(sockaddr.sin_port));
	else
	strError = strprintf("Error: Unable to bind to port %d on this computer (bind returned error %d)", ntohs(sockaddr.sin_port), nErr);
	printf("%s\n", strError.c_str());
	return false;
	}
	printf("Bound to port %d\n", ntohs(sockaddr.sin_port));

	// Listen for incoming connections
	if (listen(hListenSocket, SOMAXCONN) == SOCKET_ERROR)
	{
	strError = strprintf("Error: Listening for incoming connections failed (listen returned error %d)", WSAGetLastError());
	printf("%s\n", strError.c_str());
	return false;
	}

	return true;
	}

	void StartNode(void* parg)
	{
	#ifdef USE_UPNP
	#if USE_UPNP
	fUseUPnP = GetBoolArg("-upnp", true);
	#else
	fUseUPnP = GetBoolArg("-upnp", false);
	#endif
	#endif

	if (pnodeLocalHost == NULL)
	pnodeLocalHost = new CNode(INVALID_SOCKET, CAddress(CService("127.0.0.1", 0), nLocalServices));

	#ifdef WIN32
	// Get local host ip
	char pszHostName[1000] = "";
	if (gethostname(pszHostName, sizeof(pszHostName)) != SOCKET_ERROR)
	{
	vector<CNetAddr> vaddr;
	if (LookupHost(pszHostName, vaddr))
	BOOST_FOREACH (const CNetAddr &addr, vaddr)
	if (!addr.IsLocal())
	{
	addrLocalHost.SetIP(addr);
	break;
	}
	}
	#else
	// Get local host ip
	struct ifaddrs* myaddrs;
	if (getifaddrs(&myaddrs) == 0)
	{
	for (struct ifaddrs* ifa = myaddrs; ifa != NULL; ifa = ifa->ifa_next)
	{
	if (ifa->ifa_addr == NULL) continue;
	if ((ifa->ifa_flags & IFF_UP) == 0) continue;
	if (strcmp(ifa->ifa_name, "lo") == 0) continue;
	if (strcmp(ifa->ifa_name, "lo0") == 0) continue;
	char pszIP[100];
	if (ifa->ifa_addr->sa_family == AF_INET)
	{
	struct sockaddr_in* s4 = (struct sockaddr_in*)(ifa->ifa_addr);
	if (inet_ntop(ifa->ifa_addr->sa_family, (void*)&(s4->sin_addr), pszIP, sizeof(pszIP)) != NULL)
	printf("ipv4 %s: %s\n", ifa->ifa_name, pszIP);

	// Take the first IP that isn't loopback 127.x.x.x
	CAddress addr(CService(s4->sin_addr, GetListenPort()), nLocalServices);
	if (addr.IsValid() && !addr.IsLocal())
	{
	addrLocalHost = addr;
	break;
	}
	}
	else if (ifa->ifa_addr->sa_family == AF_INET6)
	{
	struct sockaddr_in6* s6 = (struct sockaddr_in6*)(ifa->ifa_addr);
	if (inet_ntop(ifa->ifa_addr->sa_family, (void*)&(s6->sin6_addr), pszIP, sizeof(pszIP)) != NULL)
	printf("ipv6 %s: %s\n", ifa->ifa_name, pszIP);
	}
	}
	freeifaddrs(myaddrs);
	}
	#endif
	printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());

	if (fUseProxy \|\| mapArgs.count("-connect") \|\| fNoListen)
	{
	// Proxies can't take incoming connections
	addrLocalHost.SetIP(CNetAddr("0.0.0.0"));
	printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
	}
	else
	{
	CreateThread(ThreadGetMyExternalIP, NULL);
	}

	//
	// Start threads
	//

	if (!GetBoolArg("-dnsseed", true))
	printf("DNS seeding disabled\n");
	else
	if (!CreateThread(ThreadDNSAddressSeed, NULL))
	printf("Error: CreateThread(ThreadDNSAddressSeed) failed\n");

	// Map ports with UPnP
	if (fHaveUPnP)
	MapPort(fUseUPnP);

	// Get addresses from IRC and advertise ours
	if (!CreateThread(ThreadIRCSeed, NULL))
	printf("Error: CreateThread(ThreadIRCSeed) failed\n");

	// Send and receive from sockets, accept connections
	if (!CreateThread(ThreadSocketHandler, NULL))
	printf("Error: CreateThread(ThreadSocketHandler) failed\n");

	// Initiate outbound connections from -addnode
	if (!CreateThread(ThreadOpenAddedConnections, NULL))
	printf("Error: CreateThread(ThreadOpenAddedConnections) failed\n");

	// Initiate outbound connections
	if (!CreateThread(ThreadOpenConnections, NULL))
	printf("Error: CreateThread(ThreadOpenConnections) failed\n");

	// Process messages
	if (!CreateThread(ThreadMessageHandler, NULL))
	printf("Error: CreateThread(ThreadMessageHandler) failed\n");

	// Dump network addresses
	if (!CreateThread(ThreadDumpAddress, NULL))
	printf("Error; CreateThread(ThreadDumpAddress) failed\n");

	// Generate coins in the background
	GenerateBitcoins(GetBoolArg("-gen", false), pwalletMain);
	}

	bool StopNode()
	{
	printf("StopNode()\n");
	fShutdown = true;
	nTransactionsUpdated++;
	int64 nStart = GetTime();
	do
	{
	int nThreadsRunning = 0;
	for (int n = 0; n < THREAD_MAX; n++)
	nThreadsRunning += vnThreadsRunning[n];
	if (nThreadsRunning == 0)
	break;
	if (GetTime() - nStart > 20)
	break;
	Sleep(20);
	} while(true);
	if (vnThreadsRunning[THREAD_SOCKETHANDLER] > 0) printf("ThreadSocketHandler still running\n");
	if (vnThreadsRunning[THREAD_OPENCONNECTIONS] > 0) printf("ThreadOpenConnections still running\n");
	if (vnThreadsRunning[THREAD_MESSAGEHANDLER] > 0) printf("ThreadMessageHandler still running\n");
	if (vnThreadsRunning[THREAD_MINER] > 0) printf("ThreadBitcoinMiner still running\n");
	if (vnThreadsRunning[THREAD_RPCSERVER] > 0) printf("ThreadRPCServer still running\n");
	if (fHaveUPnP && vnThreadsRunning[THREAD_UPNP] > 0) printf("ThreadMapPort still running\n");
	if (vnThreadsRunning[THREAD_DNSSEED] > 0) printf("ThreadDNSAddressSeed still running\n");
	if (vnThreadsRunning[THREAD_ADDEDCONNECTIONS] > 0) printf("ThreadOpenAddedConnections still running\n");
	if (vnThreadsRunning[THREAD_DUMPADDRESS] > 0) printf("ThreadDumpAddresses still running\n");
	while (vnThreadsRunning[THREAD_MESSAGEHANDLER] > 0 \|\| vnThreadsRunning[THREAD_RPCSERVER] > 0)
	Sleep(20);
	Sleep(50);
	DumpAddresses();
	return true;
	}

	class CNetCleanup
	{
	public:
	CNetCleanup()
	{
	}
	~CNetCleanup()
	{
	// Close sockets
	BOOST_FOREACH(CNode* pnode, vNodes)
	if (pnode->hSocket != INVALID_SOCKET)
	closesocket(pnode->hSocket);
	if (hListenSocket != INVALID_SOCKET)
	if (closesocket(hListenSocket) == SOCKET_ERROR)
	printf("closesocket(hListenSocket) failed with error %d\n", WSAGetLastError());

	#ifdef WIN32
	// Shutdown Windows Sockets
	WSACleanup();
	#endif
	}
	}
	instance_of_cnetcleanup;
	diff --git a/src/net.h b/src/net.h
	index ed9954bd7..cd707e73a 100644
	--- a/src/net.h
	+++ b/src/net.h
	@@ -1,691 +1,630 @@
	// Copyright (c) 2009-2010 Satoshi Nakamoto
	// Copyright (c) 2009-2012 The Bitcoin developers
	// Distributed under the MIT/X11 software license, see the accompanying
	// file license.txt or http://www.opensource.org/licenses/mit-license.php.
	#ifndef BITCOIN_NET_H
	#define BITCOIN_NET_H

	#include <deque>
	#include <boost/array.hpp>
	#include <boost/foreach.hpp>
	#include <openssl/rand.h>

	#ifndef WIN32
	#include <arpa/inet.h>
	#endif

	#include "mruset.h"
	#include "netbase.h"
	#include "protocol.h"
	#include "addrman.h"

	class CAddrDB;
	class CRequestTracker;
	class CNode;
	class CBlockIndex;
	extern int nBestHeight;



	inline unsigned int ReceiveBufferSize() { return 1000GetArg("-maxreceivebuffer", 101000); }
	inline unsigned int SendBufferSize() { return 1000GetArg("-maxsendbuffer", 101000); }
	-static const unsigned int PUBLISH_HOPS = 5;

	bool RecvLine(SOCKET hSocket, std::string& strLine);
	bool GetMyExternalIP(CNetAddr& ipRet);
	void AddressCurrentlyConnected(const CService& addr);
	CNode* FindNode(const CNetAddr& ip);
	CNode* FindNode(const CService& ip);
	CNode* ConnectNode(CAddress addrConnect, int64 nTimeout=0);
	-void AbandonRequests(void (fn)(void, CDataStream&), void* param1);
	-bool AnySubscribed(unsigned int nChannel);
	void MapPort(bool fMapPort);
	bool BindListenPort(std::string& strError=REF(std::string()));
	void StartNode(void* parg);
	bool StopNode();

	enum
	{
	MSG_TX = 1,
	MSG_BLOCK,
	};

	class CRequestTracker
	{
	public:
	void (fn)(void, CDataStream&);
	void* param1;

	explicit CRequestTracker(void (fnIn)(void, CDataStream&)=NULL, void* param1In=NULL)
	{
	fn = fnIn;
	param1 = param1In;
	}

	bool IsNull()
	{
	return fn == NULL;
	}
	};


	/** Thread types */
	enum threadId
	{
	THREAD_SOCKETHANDLER,
	THREAD_OPENCONNECTIONS,
	THREAD_MESSAGEHANDLER,
	THREAD_MINER,
	THREAD_RPCSERVER,
	THREAD_UPNP,
	THREAD_DNSSEED,
	THREAD_ADDEDCONNECTIONS,
	THREAD_DUMPADDRESS,

	THREAD_MAX
	};

	extern bool fClient;
	extern bool fAllowDNS;
	extern uint64 nLocalServices;
	extern CAddress addrLocalHost;
	extern uint64 nLocalHostNonce;
	extern boost::array<int, THREAD_MAX> vnThreadsRunning;
	extern CAddrMan addrman;

	extern std::vector<CNode*> vNodes;
	extern CCriticalSection cs_vNodes;
	extern std::map<CInv, CDataStream> mapRelay;
	extern std::deque<std::pair<int64, CInv> > vRelayExpiration;
	extern CCriticalSection cs_mapRelay;
	extern std::map<CInv, int64> mapAlreadyAskedFor;






	/** Information about a peer */
	class CNode
	{
	public:
	// socket
	uint64 nServices;
	SOCKET hSocket;
	CDataStream vSend;
	CDataStream vRecv;
	CCriticalSection cs_vSend;
	CCriticalSection cs_vRecv;
	int64 nLastSend;
	int64 nLastRecv;
	int64 nLastSendEmpty;
	int64 nTimeConnected;
	unsigned int nHeaderStart;
	unsigned int nMessageStart;
	CAddress addr;
	int nVersion;
	std::string strSubVer;
	bool fClient;
	bool fInbound;
	bool fNetworkNode;
	bool fSuccessfullyConnected;
	bool fDisconnect;
	protected:
	int nRefCount;

	// Denial-of-service detection/prevention
	// Key is ip address, value is banned-until-time
	static std::map<CNetAddr, int64> setBanned;
	static CCriticalSection cs_setBanned;
	int nMisbehavior;

	public:
	int64 nReleaseTime;
	std::map<uint256, CRequestTracker> mapRequests;
	CCriticalSection cs_mapRequests;
	uint256 hashContinue;
	CBlockIndex* pindexLastGetBlocksBegin;
	uint256 hashLastGetBlocksEnd;
	int nStartingHeight;

	// flood relay
	std::vector<CAddress> vAddrToSend;
	std::set<CAddress> setAddrKnown;
	bool fGetAddr;
	std::set<uint256> setKnown;

	// inventory based relay
	mruset<CInv> setInventoryKnown;
	std::vector<CInv> vInventoryToSend;
	CCriticalSection cs_inventory;
	std::multimap<int64, CInv> mapAskFor;

	- // publish and subscription
	- std::vector<char> vfSubscribe;
	-
	CNode(SOCKET hSocketIn, CAddress addrIn, bool fInboundIn=false)
	{
	nServices = 0;
	hSocket = hSocketIn;
	vSend.SetType(SER_NETWORK);
	vRecv.SetType(SER_NETWORK);
	vSend.SetVersion(209);
	vRecv.SetVersion(209);
	nLastSend = 0;
	nLastRecv = 0;
	nLastSendEmpty = GetTime();
	nTimeConnected = GetTime();
	nHeaderStart = -1;
	nMessageStart = -1;
	addr = addrIn;
	nVersion = 0;
	strSubVer = "";
	fClient = false; // set by version message
	fInbound = fInboundIn;
	fNetworkNode = false;
	fSuccessfullyConnected = false;
	fDisconnect = false;
	nRefCount = 0;
	nReleaseTime = 0;
	hashContinue = 0;
	pindexLastGetBlocksBegin = 0;
	hashLastGetBlocksEnd = 0;
	nStartingHeight = -1;
	fGetAddr = false;
	- vfSubscribe.assign(256, false);
	nMisbehavior = 0;
	setInventoryKnown.max_size(SendBufferSize() / 1000);

	// Be shy and don't send version until we hear
	if (!fInbound)
	PushVersion();
	}

	~CNode()
	{
	if (hSocket != INVALID_SOCKET)
	{
	closesocket(hSocket);
	hSocket = INVALID_SOCKET;
	}
	}

	private:
	CNode(const CNode&);
	void operator=(const CNode&);
	public:


	int GetRefCount()
	{
	return std::max(nRefCount, 0) + (GetTime() < nReleaseTime ? 1 : 0);
	}

	CNode* AddRef(int64 nTimeout=0)
	{
	if (nTimeout != 0)
	nReleaseTime = std::max(nReleaseTime, GetTime() + nTimeout);
	else
	nRefCount++;
	return this;
	}

	void Release()
	{
	nRefCount--;
	}



	void AddAddressKnown(const CAddress& addr)
	{
	setAddrKnown.insert(addr);
	}

	void PushAddress(const CAddress& addr)
	{
	// Known checking here is only to save space from duplicates.
	// SendMessages will filter it again for knowns that were added
	// after addresses were pushed.
	if (addr.IsValid() && !setAddrKnown.count(addr))
	vAddrToSend.push_back(addr);
	}


	void AddInventoryKnown(const CInv& inv)
	{
	CRITICAL_BLOCK(cs_inventory)
	setInventoryKnown.insert(inv);
	}

	void PushInventory(const CInv& inv)
	{
	CRITICAL_BLOCK(cs_inventory)
	if (!setInventoryKnown.count(inv))
	vInventoryToSend.push_back(inv);
	}

	void AskFor(const CInv& inv)
	{
	// We're using mapAskFor as a priority queue,
	// the key is the earliest time the request can be sent
	int64& nRequestTime = mapAlreadyAskedFor[inv];
	printf("askfor %s %"PRI64d"\n", inv.ToString().c_str(), nRequestTime);

	// Make sure not to reuse time indexes to keep things in the same order
	int64 nNow = (GetTime() - 1) * 1000000;
	static int64 nLastTime;
	++nLastTime;
	nNow = std::max(nNow, nLastTime);
	nLastTime = nNow;

	// Each retry is 2 minutes after the last
	nRequestTime = std::max(nRequestTime + 2 * 60 * 1000000, nNow);
	mapAskFor.insert(std::make_pair(nRequestTime, inv));
	}



	void BeginMessage(const char* pszCommand)
	{
	ENTER_CRITICAL_SECTION(cs_vSend);
	if (nHeaderStart != -1)
	AbortMessage();
	nHeaderStart = vSend.size();
	vSend << CMessageHeader(pszCommand, 0);
	nMessageStart = vSend.size();
	if (fDebug) {
	printf("%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
	printf("sending: %s ", pszCommand);
	}
	}

	void AbortMessage()
	{
	if (nHeaderStart == -1)
	return;
	vSend.resize(nHeaderStart);
	nHeaderStart = -1;
	nMessageStart = -1;
	LEAVE_CRITICAL_SECTION(cs_vSend);

	if (fDebug)
	printf("(aborted)\n");
	}

	void EndMessage()
	{
	if (mapArgs.count("-dropmessagestest") && GetRand(atoi(mapArgs["-dropmessagestest"])) == 0)
	{
	printf("dropmessages DROPPING SEND MESSAGE\n");
	AbortMessage();
	return;
	}

	if (nHeaderStart == -1)
	return;

	// Set the size
	unsigned int nSize = vSend.size() - nMessageStart;
	memcpy((char*)&vSend[nHeaderStart] + offsetof(CMessageHeader, nMessageSize), &nSize, sizeof(nSize));

	// Set the checksum
	uint256 hash = Hash(vSend.begin() + nMessageStart, vSend.end());
	unsigned int nChecksum = 0;
	memcpy(&nChecksum, &hash, sizeof(nChecksum));
	assert(nMessageStart - nHeaderStart >= offsetof(CMessageHeader, nChecksum) + sizeof(nChecksum));
	memcpy((char*)&vSend[nHeaderStart] + offsetof(CMessageHeader, nChecksum), &nChecksum, sizeof(nChecksum));

	if (fDebug) {
	printf("(%d bytes)\n", nSize);
	}

	nHeaderStart = -1;
	nMessageStart = -1;
	LEAVE_CRITICAL_SECTION(cs_vSend);
	}

	void EndMessageAbortIfEmpty()
	{
	if (nHeaderStart == -1)
	return;
	int nSize = vSend.size() - nMessageStart;
	if (nSize > 0)
	EndMessage();
	else
	AbortMessage();
	}



	void PushVersion();


	void PushMessage(const char* pszCommand)
	{
	try
	{
	BeginMessage(pszCommand);
	EndMessage();
	}
	catch (...)
	{
	AbortMessage();
	throw;
	}
	}

	template<typename T1>
	void PushMessage(const char* pszCommand, const T1& a1)
	{
	try
	{
	BeginMessage(pszCommand);
	vSend << a1;
	EndMessage();
	}
	catch (...)
	{
	AbortMessage();
	throw;
	}
	}

	template<typename T1, typename T2>
	void PushMessage(const char* pszCommand, const T1& a1, const T2& a2)
	{
	try
	{
	BeginMessage(pszCommand);
	vSend << a1 << a2;
	EndMessage();
	}
	catch (...)
	{
	AbortMessage();
	throw;
	}
	}

	template<typename T1, typename T2, typename T3>
	void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3)
	{
	try
	{
	BeginMessage(pszCommand);
	vSend << a1 << a2 << a3;
	EndMessage();
	}
	catch (...)
	{
	AbortMessage();
	throw;
	}
	}

	template<typename T1, typename T2, typename T3, typename T4>
	void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4)
	{
	try
	{
	BeginMessage(pszCommand);
	vSend << a1 << a2 << a3 << a4;
	EndMessage();
	}
	catch (...)
	{
	AbortMessage();
	throw;
	}
	}

	template<typename T1, typename T2, typename T3, typename T4, typename T5>
	void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5)
	{
	try
	{
	BeginMessage(pszCommand);
	vSend << a1 << a2 << a3 << a4 << a5;
	EndMessage();
	}
	catch (...)
	{
	AbortMessage();
	throw;
	}
	}

	template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6>
	void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5, const T6& a6)
	{
	try
	{
	BeginMessage(pszCommand);
	vSend << a1 << a2 << a3 << a4 << a5 << a6;
	EndMessage();
	}
	catch (...)
	{
	AbortMessage();
	throw;
	}
	}

	template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
	void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5, const T6& a6, const T7& a7)
	{
	try
	{
	BeginMessage(pszCommand);
	vSend << a1 << a2 << a3 << a4 << a5 << a6 << a7;
	EndMessage();
	}
	catch (...)
	{
	AbortMessage();
	throw;
	}
	}

	template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8>
	void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5, const T6& a6, const T7& a7, const T8& a8)
	{
	try
	{
	BeginMessage(pszCommand);
	vSend << a1 << a2 << a3 << a4 << a5 << a6 << a7 << a8;
	EndMessage();
	}
	catch (...)
	{
	AbortMessage();
	throw;
	}
	}

	template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8, typename T9>
	void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5, const T6& a6, const T7& a7, const T8& a8, const T9& a9)
	{
	try
	{
	BeginMessage(pszCommand);
	vSend << a1 << a2 << a3 << a4 << a5 << a6 << a7 << a8 << a9;
	EndMessage();
	}
	catch (...)
	{
	AbortMessage();
	throw;
	}
	}


	void PushRequest(const char* pszCommand,
	void (fn)(void, CDataStream&), void* param1)
	{
	uint256 hashReply;
	RAND_bytes((unsigned char*)&hashReply, sizeof(hashReply));

	CRITICAL_BLOCK(cs_mapRequests)
	mapRequests[hashReply] = CRequestTracker(fn, param1);

	PushMessage(pszCommand, hashReply);
	}

	template<typename T1>
	void PushRequest(const char* pszCommand, const T1& a1,
	void (fn)(void, CDataStream&), void* param1)
	{
	uint256 hashReply;
	RAND_bytes((unsigned char*)&hashReply, sizeof(hashReply));

	CRITICAL_BLOCK(cs_mapRequests)
	mapRequests[hashReply] = CRequestTracker(fn, param1);

	PushMessage(pszCommand, hashReply, a1);
	}

	template<typename T1, typename T2>
	void PushRequest(const char* pszCommand, const T1& a1, const T2& a2,
	void (fn)(void, CDataStream&), void* param1)
	{
	uint256 hashReply;
	RAND_bytes((unsigned char*)&hashReply, sizeof(hashReply));

	CRITICAL_BLOCK(cs_mapRequests)
	mapRequests[hashReply] = CRequestTracker(fn, param1);

	PushMessage(pszCommand, hashReply, a1, a2);
	}



	void PushGetBlocks(CBlockIndex* pindexBegin, uint256 hashEnd);
	bool IsSubscribed(unsigned int nChannel);
	void Subscribe(unsigned int nChannel, unsigned int nHops=0);
	void CancelSubscribe(unsigned int nChannel);
	void CloseSocketDisconnect();
	void Cleanup();


	// Denial-of-service detection/prevention
	// The idea is to detect peers that are behaving
	// badly and disconnect/ban them, but do it in a
	// one-coding-mistake-won't-shatter-the-entire-network
	// way.
	// IMPORTANT: There should be nothing I can give a
	// node that it will forward on that will make that
	// node's peers drop it. If there is, an attacker
	// can isolate a node and/or try to split the network.
	// Dropping a node for sending stuff that is invalid
	// now but might be valid in a later version is also
	// dangerous, because it can cause a network split
	// between nodes running old code and nodes running
	// new code.
	static void ClearBanned(); // needed for unit testing
	static bool IsBanned(CNetAddr ip);
	bool Misbehaving(int howmuch); // 1 == a little, 100 == a lot
	};










	inline void RelayInventory(const CInv& inv)
	{
	// Put on lists to offer to the other nodes
	CRITICAL_BLOCK(cs_vNodes)
	BOOST_FOREACH(CNode* pnode, vNodes)
	pnode->PushInventory(inv);
	}

	template<typename T>
	void RelayMessage(const CInv& inv, const T& a)
	{
	CDataStream ss(SER_NETWORK);
	ss.reserve(10000);
	ss << a;
	RelayMessage(inv, ss);
	}

	template<>
	inline void RelayMessage<>(const CInv& inv, const CDataStream& ss)
	{
	CRITICAL_BLOCK(cs_mapRelay)
	{
	// Expire old relay messages
	while (!vRelayExpiration.empty() && vRelayExpiration.front().first < GetTime())
	{
	mapRelay.erase(vRelayExpiration.front().second);
	vRelayExpiration.pop_front();
	}

	// Save original serialized message so newer versions are preserved
	mapRelay[inv] = ss;
	vRelayExpiration.push_back(std::make_pair(GetTime() + 15 * 60, inv));
	}

	RelayInventory(inv);
	}


	-
	-
	-
	-
	-
	-
	-//
	-// Templates for the publish and subscription system.
	-// The object being published as T& obj needs to have:
	-// a set<unsigned int> setSources member
	-// specializations of AdvertInsert and AdvertErase
	-// Currently implemented for CTable and CProduct.
	-//
	-
	-template<typename T>
	-void AdvertStartPublish(CNode* pfrom, unsigned int nChannel, unsigned int nHops, T& obj)
	-{
	- // Add to sources
	- obj.setSources.insert(pfrom->addr.ip);
	-
	- if (!AdvertInsert(obj))
	- return;
	-
	- // Relay
	- CRITICAL_BLOCK(cs_vNodes)
	- BOOST_FOREACH(CNode* pnode, vNodes)
	- if (pnode != pfrom && (nHops < PUBLISH_HOPS \|\| pnode->IsSubscribed(nChannel)))
	- pnode->PushMessage("publish", nChannel, nHops, obj);
	-}
	-
	-template<typename T>
	-void AdvertStopPublish(CNode* pfrom, unsigned int nChannel, unsigned int nHops, T& obj)
	-{
	- uint256 hash = obj.GetHash();
	-
	- CRITICAL_BLOCK(cs_vNodes)
	- BOOST_FOREACH(CNode* pnode, vNodes)
	- if (pnode != pfrom && (nHops < PUBLISH_HOPS \|\| pnode->IsSubscribed(nChannel)))
	- pnode->PushMessage("pub-cancel", nChannel, nHops, hash);
	-
	- AdvertErase(obj);
	-}
	-
	-template<typename T>
	-void AdvertRemoveSource(CNode* pfrom, unsigned int nChannel, unsigned int nHops, T& obj)
	-{
	- // Remove a source
	- obj.setSources.erase(pfrom->addr.ip);
	-
	- // If no longer supported by any sources, cancel it
	- if (obj.setSources.empty())
	- AdvertStopPublish(pfrom, nChannel, nHops, obj);
	-}
	-
	#endif

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