net.cpp
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	// Copyright (c) 2009-2010 Satoshi Nakamoto
	// Copyright (c) 2009-2012 The Bitcoin developers
	// Distributed under the MIT/X11 software license, see the accompanying
	// file COPYING or http://www.opensource.org/licenses/mit-license.php.

	#include "irc.h"
	#include "db.h"
	#include "net.h"
	#include "init.h"
	#include "strlcpy.h"
	#include "addrman.h"
	#include "ui_interface.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, CSemaphoreGrant grantOutbound = NULL, const char strDest = NULL, bool fOneShot = false);


	struct LocalServiceInfo {
	int nScore;
	int nPort;
	};

	//
	// Global state variables
	//
	bool fClient = false;
	bool fDiscover = true;
	bool fUseUPnP = false;
	uint64 nLocalServices = (fClient ? 0 : NODE_NETWORK);
	static CCriticalSection cs_mapLocalHost;
	static map<CNetAddr, LocalServiceInfo> mapLocalHost;
	static bool vfReachable[NET_MAX] = {};
	static bool vfLimited[NET_MAX] = {};
	static CNode* pnodeLocalHost = NULL;
	uint64 nLocalHostNonce = 0;
	array<int, THREAD_MAX> vnThreadsRunning;
	static std::vector<SOCKET> vhListenSocket;
	CAddrMan addrman;

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

	static deque<string> vOneShots;
	CCriticalSection cs_vOneShots;

	set<CNetAddr> setservAddNodeAddresses;
	CCriticalSection cs_setservAddNodeAddresses;

	static CSemaphore *semOutbound = NULL;

	void AddOneShot(string strDest)
	{
	LOCK(cs_vOneShots);
	vOneShots.push_back(strDest);
	}

	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);
	}

	// find 'best' local address for a particular peer
	bool GetLocal(CService& addr, const CNetAddr *paddrPeer)
	{
	if (fNoListen)
	return false;

	int nBestScore = -1;
	int nBestReachability = -1;
	{
	LOCK(cs_mapLocalHost);
	for (map<CNetAddr, LocalServiceInfo>::iterator it = mapLocalHost.begin(); it != mapLocalHost.end(); it++)
	{
	int nScore = (*it).second.nScore;
	int nReachability = (*it).first.GetReachabilityFrom(paddrPeer);
	if (nReachability > nBestReachability \|\| (nReachability == nBestReachability && nScore > nBestScore))
	{
	addr = CService((it).first, (it).second.nPort);
	nBestReachability = nReachability;
	nBestScore = nScore;
	}
	}
	}
	return nBestScore >= 0;
	}

	// get best local address for a particular peer as a CAddress
	CAddress GetLocalAddress(const CNetAddr *paddrPeer)
	{
	CAddress ret(CService("0.0.0.0",0),0);
	CService addr;
	if (GetLocal(addr, paddrPeer))
	{
	ret = CAddress(addr);
	ret.nServices = nLocalServices;
	ret.nTime = GetAdjustedTime();
	}
	return ret;
	}

	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;
	}
	}
	}
	}

	// used when scores of local addresses may have changed
	// pushes better local address to peers
	void static AdvertizeLocal()
	{
	LOCK(cs_vNodes);
	BOOST_FOREACH(CNode* pnode, vNodes)
	{
	if (pnode->fSuccessfullyConnected)
	{
	CAddress addrLocal = GetLocalAddress(&pnode->addr);
	if (addrLocal.IsRoutable() && (CService)addrLocal != (CService)pnode->addrLocal)
	{
	pnode->PushAddress(addrLocal);
	pnode->addrLocal = addrLocal;
	}
	}
	}
	}

	void SetReachable(enum Network net, bool fFlag)
	{
	LOCK(cs_mapLocalHost);
	vfReachable[net] = fFlag;
	if (net == NET_IPV6 && fFlag)
	vfReachable[NET_IPV4] = true;
	}

	// learn a new local address
	bool AddLocal(const CService& addr, int nScore)
	{
	if (!addr.IsRoutable())
	return false;

	if (!fDiscover && nScore < LOCAL_MANUAL)
	return false;

	if (IsLimited(addr))
	return false;

	printf("AddLocal(%s,%i)\n", addr.ToString().c_str(), nScore);

	{
	LOCK(cs_mapLocalHost);
	bool fAlready = mapLocalHost.count(addr) > 0;
	LocalServiceInfo &info = mapLocalHost[addr];
	if (!fAlready \|\| nScore >= info.nScore) {
	info.nScore = nScore;
	info.nPort = addr.GetPort() + (fAlready ? 1 : 0);
	}
	SetReachable(addr.GetNetwork());
	}

	AdvertizeLocal();

	return true;
	}

	bool AddLocal(const CNetAddr &addr, int nScore)
	{
	return AddLocal(CService(addr, GetListenPort()), nScore);
	}

	/** Make a particular network entirely off-limits (no automatic connects to it) */
	void SetLimited(enum Network net, bool fLimited)
	{
	if (net == NET_UNROUTABLE)
	return;
	LOCK(cs_mapLocalHost);
	vfLimited[net] = fLimited;
	}

	bool IsLimited(enum Network net)
	{
	LOCK(cs_mapLocalHost);
	return vfLimited[net];
	}

	bool IsLimited(const CNetAddr &addr)
	{
	return IsLimited(addr.GetNetwork());
	}

	/** vote for a local address */
	bool SeenLocal(const CService& addr)
	{
	{
	LOCK(cs_mapLocalHost);
	if (mapLocalHost.count(addr) == 0)
	return false;
	mapLocalHost[addr].nScore++;
	}

	AdvertizeLocal();

	return true;
	}

	/** check whether a given address is potentially local */
	bool IsLocal(const CService& addr)
	{
	LOCK(cs_mapLocalHost);
	return mapLocalHost.count(addr) > 0;
	}

	/** check whether a given address is in a network we can probably connect to */
	bool IsReachable(const CNetAddr& addr)
	{
	LOCK(cs_mapLocalHost);
	enum Network net = addr.GetNetwork();
	return vfReachable[net] && !vfLimited[net];
	}

	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) != string::npos)
	{
	strLine = strLine.substr(strLine.find(pszKeyword) + strlen(pszKeyword));
	break;
	}
	}
	closesocket(hSocket);
	if (strLine.find("<") != string::npos)
	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;

	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 web server 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)
	{
	// Make this thread recognisable as the external IP detection thread
	RenameThread("bitcoin-ext-ip");

	CNetAddr addrLocalHost;
	if (GetMyExternalIP(addrLocalHost))
	{
	printf("GetMyExternalIP() returned %s\n", addrLocalHost.ToStringIP().c_str());
	AddLocal(addrLocalHost, LOCAL_HTTP);
	}
	}





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







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

	CNode* FindNode(std::string addrName)
	{
	LOCK(cs_vNodes);
	BOOST_FOREACH(CNode* pnode, vNodes)
	if (pnode->addrName == addrName)
	return (pnode);
	return NULL;
	}

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

	CNode* ConnectNode(CAddress addrConnect, const char *pszDest, int64 nTimeout)
	{
	if (pszDest == NULL) {
	if (IsLocal(addrConnect))
	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",
	pszDest ? pszDest : addrConnect.ToString().c_str(),
	pszDest ? 0 : (double)(GetAdjustedTime() - addrConnect.nTime)/3600.0);

	// Connect
	SOCKET hSocket;
	if (pszDest ? ConnectSocketByName(addrConnect, hSocket, pszDest, GetDefaultPort()) : ConnectSocket(addrConnect, hSocket))
	{
	addrman.Attempt(addrConnect);

	/// debug print
	printf("connected %s\n", pszDest ? pszDest : addrConnect.ToString().c_str());

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

	// Add node
	CNode* pnode = new CNode(hSocket, addrConnect, pszDest ? pszDest : "", false);
	if (nTimeout != 0)
	pnode->AddRef(nTimeout);
	else
	pnode->AddRef();

	{
	LOCK(cs_vNodes);
	vNodes.push_back(pnode);
	}

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

	void CNode::CloseSocketDisconnect()
	{
	fDisconnect = true;
	if (hSocket != INVALID_SOCKET)
	{
	printf("disconnecting node %s\n", addrName.c_str());
	closesocket(hSocket);
	hSocket = INVALID_SOCKET;
	vRecv.clear();
	}
	}

	void CNode::Cleanup()
	{
	}


	void CNode::PushVersion()
	{
	/// when NTP implemented, change to just nTime = GetAdjustedTime()
	int64 nTime = (fInbound ? GetAdjustedTime() : GetTime());
	CAddress addrYou = (addr.IsRoutable() && !IsProxy(addr) ? addr : CAddress(CService("0.0.0.0",0)));
	CAddress addrMe = GetLocalAddress(&addr);
	RAND_bytes((unsigned char*)&nLocalHostNonce, sizeof(nLocalHostNonce));
	printf("send version message: version %d, blocks=%d, us=%s, them=%s, peer=%s\n", PROTOCOL_VERSION, nBestHeight, addrMe.ToString().c_str(), addrYou.ToString().c_str(), addr.ToString().c_str());
	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;
	{
	LOCK(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 (delta: %d)!\n", addrName.c_str(), howmuch);
	return false;
	}

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

	#undef X
	#define X(name) stats.name = name
	void CNode::copyStats(CNodeStats &stats)
	{
	X(nServices);
	X(nLastSend);
	X(nLastRecv);
	X(nTimeConnected);
	X(addrName);
	X(nVersion);
	X(strSubVer);
	X(fInbound);
	X(nReleaseTime);
	X(nStartingHeight);
	X(nMisbehavior);
	}
	#undef X










	void ThreadSocketHandler(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadSocketHandler(parg));

	// Make this thread recognisable as the networking thread
	RenameThread("bitcoin-net");

	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 exited\n");
	}

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

	loop
	{
	//
	// Disconnect nodes
	//
	{
	LOCK(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());

	// release outbound grant (if any)
	pnode->grantOutbound.Release();

	// 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_LOCK(pnode->cs_vSend, lockSend);
	if (lockSend)
	{
	TRY_LOCK(pnode->cs_vRecv, lockRecv);
	if (lockRecv)
	{
	TRY_LOCK(pnode->cs_mapRequests, lockReq);
	if (lockReq)
	{
	TRY_LOCK(pnode->cs_inventory, lockInv);
	if (lockInv)
	fDelete = true;
	}
	}
	}
	}
	if (fDelete)
	{
	vNodesDisconnected.remove(pnode);
	delete pnode;
	}
	}
	}
	}
	if (vNodes.size() != nPrevNodeCount)
	{
	nPrevNodeCount = vNodes.size();
	uiInterface.NotifyNumConnectionsChanged(vNodes.size());
	}


	//
	// 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;

	BOOST_FOREACH(SOCKET hListenSocket, vhListenSocket) {
	FD_SET(hListenSocket, &fdsetRecv);
	hSocketMax = max(hSocketMax, hListenSocket);
	}
	{
	LOCK(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_LOCK(pnode->cs_vSend, lockSend);
	if (lockSend && !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 != INVALID_SOCKET)
	{
	printf("socket select error %d\n", nErr);
	for (unsigned int i = 0; i <= hSocketMax; i++)
	FD_SET(i, &fdsetRecv);
	}
	FD_ZERO(&fdsetSend);
	FD_ZERO(&fdsetError);
	Sleep(timeout.tv_usec/1000);
	}


	//
	// Accept new connections
	//
	BOOST_FOREACH(SOCKET hListenSocket, vhListenSocket)
	if (hListenSocket != INVALID_SOCKET && FD_ISSET(hListenSocket, &fdsetRecv))
	{
	#ifdef USE_IPV6
	struct sockaddr_storage sockaddr;
	#else
	struct sockaddr sockaddr;
	#endif
	socklen_t len = sizeof(sockaddr);
	SOCKET hSocket = accept(hListenSocket, (struct sockaddr*)&sockaddr, &len);
	CAddress addr;
	int nInbound = 0;

	if (hSocket != INVALID_SOCKET)
	if (!addr.SetSockAddr((const struct sockaddr*)&sockaddr))
	printf("Warning: Unknown socket family\n");

	{
	LOCK(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)
	{
	{
	LOCK(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();
	{
	LOCK(cs_vNodes);
	vNodes.push_back(pnode);
	}
	}
	}


	//
	// Service each socket
	//
	vector<CNode*> vNodesCopy;
	{
	LOCK(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_LOCK(pnode->cs_vRecv, lockRecv);
	if (lockRecv)
	{
	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_LOCK(pnode->cs_vSend, lockSend);
	if (lockSend)
	{
	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();
	}
	}
	}
	}
	}

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

	Sleep(10);
	}
	}









	#ifdef USE_UPNP
	void ThreadMapPort(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadMapPort(parg));

	// Make this thread recognisable as the UPnP thread
	RenameThread("bitcoin-UPnP");

	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 exited\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 (fDiscover) {
	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);
	AddLocal(CNetAddr(externalIPAddress), LOCAL_UPNP);
	}
	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()
	{
	if (fUseUPnP && vnThreadsRunning[THREAD_UPNP] < 1)
	{
	if (!CreateThread(ThreadMapPort, NULL))
	printf("Error: ThreadMapPort(ThreadMapPort) failed\n");
	}
	}
	#else
	void MapPort()
	{
	// 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] = {
	{"bitcoin.sipa.be", "seed.bitcoin.sipa.be"},
	{"bluematt.me", "dnsseed.bluematt.me"},
	{"dashjr.org", "dnsseed.bitcoin.dashjr.org"},
	{"xf2.org", "bitseed.xf2.org"},
	};

	void ThreadDNSAddressSeed(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadDNSAddressSeed(parg));

	// Make this thread recognisable as the DNS seeding thread
	RenameThread("bitcoin-dnsseed");

	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 exited\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 (unsigned int seed_idx = 0; seed_idx < ARRAYLEN(strDNSSeed); seed_idx++) {
	if (GetNameProxy()) {
	AddOneShot(strDNSSeed[seed_idx][1]);
	} else {
	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()
	{
	int64 nStart = GetTimeMillis();

	CAddrDB adb;
	adb.Write(addrman);

	printf("Flushed %d addresses to peers.dat %"PRI64d"ms\n",
	addrman.size(), GetTimeMillis() - nStart);
	}

	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));

	// Make this thread recognisable as the address dumping thread
	RenameThread("bitcoin-adrdump");

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

	void ThreadOpenConnections(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadOpenConnections(parg));

	// Make this thread recognisable as the connection opening thread
	RenameThread("bitcoin-opencon");

	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 exited\n");
	}

	void static ProcessOneShot()
	{
	string strDest;
	{
	LOCK(cs_vOneShots);
	if (vOneShots.empty())
	return;
	strDest = vOneShots.front();
	vOneShots.pop_front();
	}
	CAddress addr;
	CSemaphoreGrant grant(*semOutbound, true);
	if (grant) {
	if (!OpenNetworkConnection(addr, &grant, strDest.c_str(), true))
	AddOneShot(strDest);
	}
	}

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

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

	// Initiate network connections
	int64 nStart = GetTime();
	loop
	{
	ProcessOneShot();

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


	vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
	CSemaphoreGrant grant(*semOutbound);
	vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
	if (fShutdown)
	return;

	// Add seed nodes if IRC isn't working
	if (addrman.size()==0 && (GetTime() - nStart > 60) && !fTestNet)
	{
	std::vector<CAddress> vAdd;
	for (unsigned 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;

	// Only connect out to one peer per network group (/16 for IPv4).
	// Do this here so we don't have to critsect vNodes inside mapAddresses critsect.
	int nOutbound = 0;
	set<vector<unsigned char> > setConnected;
	{
	LOCK(cs_vNodes);
	BOOST_FOREACH(CNode* pnode, vNodes) {
	if (!pnode->fInbound) {
	setConnected.insert(pnode->addr.GetGroup());
	nOutbound++;
	}
	}
	}

	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.IsValid() \|\| setConnected.count(addr.GetGroup()) \|\| IsLocal(addr))
	break;

	// If we didn't find an appropriate destination after trying 100 addresses fetched from addrman,
	// stop this loop, and let the outer loop run again (which sleeps, adds seed nodes, recalculates
	// already-connected network ranges, ...) before trying new addrman addresses.
	nTries++;
	if (nTries > 100)
	break;

	if (IsLimited(addr))
	continue;

	// 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, &grant);
	}
	}

	void ThreadOpenAddedConnections(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadOpenAddedConnections(parg));

	// Make this thread recognisable as the connection opening thread
	RenameThread("bitcoin-opencon");

	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 exited\n");
	}

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

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

	if (GetNameProxy()) {
	while(!fShutdown) {
	BOOST_FOREACH(string& strAddNode, mapMultiArgs["-addnode"]) {
	CAddress addr;
	CSemaphoreGrant grant(*semOutbound);
	OpenNetworkConnection(addr, &grant, strAddNode.c_str());
	Sleep(500);
	}
	vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
	Sleep(120000); // Retry every 2 minutes
	vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
	}
	return;
	}

	vector<vector<CService> > vservAddressesToAdd(0);
	BOOST_FOREACH(string& strAddNode, mapMultiArgs["-addnode"])
	{
	vector<CService> vservNode(0);
	if(Lookup(strAddNode.c_str(), vservNode, GetDefaultPort(), fNameLookup, 0))
	{
	vservAddressesToAdd.push_back(vservNode);
	{
	LOCK(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 fNameLookup)
	{
	LOCK(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)
	{
	CSemaphoreGrant grant(*semOutbound);
	OpenNetworkConnection(CAddress(*(vserv.begin())), &grant);
	Sleep(500);
	if (fShutdown)
	return;
	}
	if (fShutdown)
	return;
	vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
	Sleep(120000); // Retry every 2 minutes
	vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
	if (fShutdown)
	return;
	}
	}

	// if successful, this moves the passed grant to the constructed node
	bool OpenNetworkConnection(const CAddress& addrConnect, CSemaphoreGrant grantOutbound, const char strDest, bool fOneShot)
	{
	//
	// Initiate outbound network connection
	//
	if (fShutdown)
	return false;
	if (!strDest)
	if (IsLocal(addrConnect) \|\|
	FindNode((CNetAddr)addrConnect) \|\| CNode::IsBanned(addrConnect) \|\|
	FindNode(addrConnect.ToStringIPPort().c_str()))
	return false;
	if (strDest && FindNode(strDest))
	return false;

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

	return true;
	}








	void ThreadMessageHandler(void* parg)
	{
	IMPLEMENT_RANDOMIZE_STACK(ThreadMessageHandler(parg));

	// Make this thread recognisable as the message handling thread
	RenameThread("bitcoin-msghand");

	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 exited\n");
	}

	void ThreadMessageHandler2(void* parg)
	{
	printf("ThreadMessageHandler started\n");
	SetThreadPriority(THREAD_PRIORITY_BELOW_NORMAL);
	while (!fShutdown)
	{
	vector<CNode*> vNodesCopy;
	{
	LOCK(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_LOCK(pnode->cs_vRecv, lockRecv);
	if (lockRecv)
	ProcessMessages(pnode);
	}
	if (fShutdown)
	return;

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

	{
	LOCK(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)
	StartShutdown();
	vnThreadsRunning[THREAD_MESSAGEHANDLER]++;
	if (fShutdown)
	return;
	}
	}






	bool BindListenPort(const CService &addrBind, string& strError)
	{
	strError = "";
	int nOne = 1;

	#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
	#ifdef USE_IPV6
	struct sockaddr_storage sockaddr;
	#else
	struct sockaddr sockaddr;
	#endif
	socklen_t len = sizeof(sockaddr);
	if (!addrBind.GetSockAddr((struct sockaddr*)&sockaddr, &len))
	{
	strError = strprintf("Error: bind address family for %s not supported", addrBind.ToString().c_str());
	printf("%s\n", strError.c_str());
	return false;
	}

	SOCKET hListenSocket = socket(((struct sockaddr*)&sockaddr)->sa_family, 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 non-blocking, 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;
	}

	#ifdef USE_IPV6
	// some systems don't have IPV6_V6ONLY but are always v6only; others do have the option
	// and enable it by default or not. Try to enable it, if possible.
	if (addrBind.IsIPv6()) {
	#ifdef IPV6_V6ONLY
	setsockopt(hListenSocket, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&nOne, sizeof(int));
	#endif
	#ifdef WIN32
	int nProtLevel = 10 /* PROTECTION_LEVEL_UNRESTRICTED */;
	int nParameterId = 23 /* IPV6_PROTECTION_LEVEl */;
	// this call is allowed to fail
	setsockopt(hListenSocket, IPPROTO_IPV6, nParameterId, (const char*)&nProtLevel, sizeof(int));
	#endif
	}
	#endif

	if (::bind(hListenSocket, (struct sockaddr*)&sockaddr, len) == SOCKET_ERROR)
	{
	int nErr = WSAGetLastError();
	if (nErr == WSAEADDRINUSE)
	strError = strprintf(_("Unable to bind to %s on this computer. Bitcoin is probably already running."), addrBind.ToString().c_str());
	else
	strError = strprintf(_("Unable to bind to %s on this computer (bind returned error %d, %s)"), addrBind.ToString().c_str(), nErr, strerror(nErr));
	printf("%s\n", strError.c_str());
	return false;
	}
	printf("Bound to %s\n", addrBind.ToString().c_str());

	// 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;
	}

	vhListenSocket.push_back(hListenSocket);

	if (addrBind.IsRoutable() && fDiscover)
	AddLocal(addrBind, LOCAL_BIND);

	return true;
	}

	void static Discover()
	{
	if (!fDiscover)
	return;

	#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)
	{
	AddLocal(addr, LOCAL_IF);
	}
	}
	}
	#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;
	if (ifa->ifa_addr->sa_family == AF_INET)
	{
	struct sockaddr_in* s4 = (struct sockaddr_in*)(ifa->ifa_addr);
	CNetAddr addr(s4->sin_addr);
	if (AddLocal(addr, LOCAL_IF))
	printf("IPv4 %s: %s\n", ifa->ifa_name, addr.ToString().c_str());
	}
	#ifdef USE_IPV6
	else if (ifa->ifa_addr->sa_family == AF_INET6)
	{
	struct sockaddr_in6* s6 = (struct sockaddr_in6*)(ifa->ifa_addr);
	CNetAddr addr(s6->sin6_addr);
	if (AddLocal(addr, LOCAL_IF))
	printf("IPv6 %s: %s\n", ifa->ifa_name, addr.ToString().c_str());
	}
	#endif
	}
	freeifaddrs(myaddrs);
	}
	#endif

	// Don't use external IPv4 discovery, when -onlynet="IPv6"
	if (!IsLimited(NET_IPV4))
	CreateThread(ThreadGetMyExternalIP, NULL);
	}

	void StartNode(void* parg)
	{
	// Make this thread recognisable as the startup thread
	RenameThread("bitcoin-start");

	if (semOutbound == NULL) {
	// initialize semaphore
	int nMaxOutbound = min(MAX_OUTBOUND_CONNECTIONS, (int)GetArg("-maxconnections", 125));
	semOutbound = new CSemaphore(nMaxOutbound);
	}

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

	Discover();

	//
	// 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 (fUseUPnP)
	MapPort();

	// 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();
	if (semOutbound)
	for (int i=0; i<MAX_OUTBOUND_CONNECTIONS; i++)
	semOutbound->post();
	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_RPCLISTENER] > 0) printf("ThreadRPCListener still running\n");
	if (vnThreadsRunning[THREAD_RPCHANDLER] > 0) printf("ThreadsRPCServer still running\n");
	#ifdef USE_UPNP
	if (vnThreadsRunning[THREAD_UPNP] > 0) printf("ThreadMapPort still running\n");
	#endif
	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_RPCHANDLER] > 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);
	BOOST_FOREACH(SOCKET hListenSocket, vhListenSocket)
	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;

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