Split this up even more, much smaller files that are easier for gcc to digest

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@6395 e03df62e-2008-0410-955e-edbf42e46eb7

1 files changed, 1448 insertions, 0 deletions

diff --git a/src/modules/m_spanningtree/treesocket2.cpp b/src/modules/m_spanningtree/treesocket2.cpp
new file mode 100644
index 000000000..eefffe1f9
--- /dev/null
+++ b/src/modules/m_spanningtree/treesocket2.cpp
@@ -0,0 +1,1448 @@
+#include "configreader.h"
+#include "users.h"
+#include "channels.h"
+#include "modules.h"
+#include "commands/cmd_whois.h"
+#include "commands/cmd_stats.h"
+#include "socket.h"
+#include "inspircd.h"
+#include "wildcard.h"
+#include "xline.h"
+#include "transport.h"
+#include "socketengine.h"
+
+#include "m_spanningtree/main.h"
+#include "m_spanningtree/utils.h"
+#include "m_spanningtree/treeserver.h"
+#include "m_spanningtree/link.h"
+#include "m_spanningtree/treesocket.h"
+#include "m_spanningtree/resolvers.h"
+#include "m_spanningtree/handshaketimer.h"
+
+int TreeSocket::WriteLine(std::string line)
+{
+	Instance->Log(DEBUG, "-> %s", line.c_str());
+	line.append("\r\n");
+	return this->Write(line);
+}
+
+/* Handle ERROR command */
+bool TreeSocket::Error(std::deque<std::string> &params)
+{
+	if (params.size() < 1)
+		return false;
+	this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
+	/* we will return false to cause the socket to close. */
+	return false;
+}
+
+/** remote MOTD. leet, huh? */
+bool TreeSocket::Motd(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() > 0)
+	{
+		if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
+		{
+			/* It's for our server */
+			string_list results;
+			userrec* source = this->Instance->FindNick(prefix);
+
+			if (source)
+			{
+				std::deque<std::string> par;
+				par.push_back(prefix);
+				par.push_back("");
+
+				if (!Instance->Config->MOTD.size())
+				{
+					par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
+					Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+					return true;
+				}
+
+				par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
+				Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+
+				for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
+				{
+					par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
+					Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+				}
+
+				par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
+				Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+			}
+		}
+		else
+		{
+			/* Pass it on */
+			userrec* source = this->Instance->FindNick(prefix);
+			if (source)
+				Utils->DoOneToOne(prefix, "MOTD", params, params[0]);
+		}
+	}
+	return true;
+}
+
+/** remote ADMIN. leet, huh? */
+bool TreeSocket::Admin(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() > 0)
+	{
+		if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
+		{
+			/* It's for our server */
+			string_list results;
+			userrec* source = this->Instance->FindNick(prefix);
+			if (source)
+			{
+				std::deque<std::string> par;
+				par.push_back(prefix);
+				par.push_back("");
+				par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
+				Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+				par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name     - "+Instance->Config->AdminName;
+				Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+				par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
+				Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+				par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail   - "+Instance->Config->AdminEmail;
+				Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+			}
+		}
+		else
+		{
+			/* Pass it on */
+			userrec* source = this->Instance->FindNick(prefix);
+			if (source)
+				Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);
+		}
+	}
+	return true;
+}
+
+bool TreeSocket::Stats(const std::string &prefix, std::deque<std::string> &params)
+{
+	/* Get the reply to a STATS query if it matches this servername,
+	 * and send it back as a load of PUSH queries
+	 */
+	if (params.size() > 1)
+	{
+		if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
+		{
+			/* It's for our server */
+			string_list results;
+			userrec* source = this->Instance->FindNick(prefix);
+			if (source)
+			{
+				std::deque<std::string> par;
+				par.push_back(prefix);
+				par.push_back("");
+				DoStats(this->Instance, *(params[0].c_str()), source, results);
+				for (size_t i = 0; i < results.size(); i++)
+				{
+					par[1] = "::" + results[i];
+					Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+				}
+			}
+		}
+		else
+		{
+			/* Pass it on */
+			userrec* source = this->Instance->FindNick(prefix);
+			if (source)
+				Utils->DoOneToOne(prefix, "STATS", params, params[1]);
+		}
+	}
+	return true;
+}
+
+
+/** Because the core won't let users or even SERVERS set +o,
+ * we use the OPERTYPE command to do this.
+ */
+bool TreeSocket::OperType(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() != 1)
+		return true;
+	std::string opertype = params[0];
+	userrec* u = this->Instance->FindNick(prefix);
+	if (u)
+	{
+		u->modes[UM_OPERATOR] = 1;
+		this->Instance->all_opers.push_back(u);
+		strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
+		Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
+		this->Instance->SNO->WriteToSnoMask('o',"From %s: User %s (%s@%s) is now an IRC operator of type %s",u->server, u->nick,u->ident,u->host,irc::Spacify(opertype.c_str()));
+	}
+	return true;
+}
+
+/** Because Andy insists that services-compatible servers must
+ * implement SVSNICK and SVSJOIN, that's exactly what we do :p
+ */
+bool TreeSocket::ForceNick(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 3)
+		return true;
+
+	userrec* u = this->Instance->FindNick(params[0]);
+
+	if (u)
+	{
+		Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
+		if (IS_LOCAL(u))
+		{
+			std::deque<std::string> par;
+			par.push_back(params[1]);
+			if (!u->ForceNickChange(params[1].c_str()))
+			{
+				userrec::QuitUser(this->Instance, u, "Nickname collision");
+				return true;
+			}
+			u->age = atoi(params[2].c_str());
+		}
+	}
+	return true;
+}
+
+/*
+ * Remote SQUIT (RSQUIT). Routing works similar to SVSNICK: Route it to the server that the target is connected to locally,
+ * then let that server do the dirty work (squit it!). Example:
+ * A -> B -> C -> D: oper on A squits D, A routes to B, B routes to C, C notices D connected locally, kills it. -- w00t
+ */
+bool TreeSocket::RemoteSquit(const std::string &prefix, std::deque<std::string> &params)
+{
+	/* ok.. :w00t RSQUIT jupe.barafranca.com :reason here */
+	if (params.size() < 2)
+		return true;
+
+	TreeServer* s = Utils->FindServerMask(params[0]);
+
+	if (s)
+	{
+		if (s == Utils->TreeRoot)
+		{
+			this->Instance->SNO->WriteToSnoMask('l',"What the fuck, I recieved a remote SQUIT for myself? :< (from %s", prefix.c_str());
+			return true;
+		}
+
+		TreeSocket* sock = s->GetSocket();
+
+		if (sock)
+		{
+			/* it's locally connected, KILL IT! */
+			Instance->SNO->WriteToSnoMask('l',"RSQUIT: Server \002%s\002 removed from network by %s: %s", params[0].c_str(), prefix.c_str(), params[1].c_str());
+			sock->Squit(s,"Server quit by " + prefix + ": " + params[1]);
+			Instance->SE->DelFd(sock);
+			sock->Close();
+			delete sock;
+		}
+		else
+		{
+			/* route the rsquit */
+			params[1] = ":" + params[1];
+			Utils->DoOneToOne(prefix, "RSQUIT", params, params[0]);
+		}
+	}
+	else
+	{
+		/* mother fucker! it doesn't exist */
+	}
+
+	return true;
+}
+
+bool TreeSocket::ServiceJoin(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 2)
+		return true;
+
+	userrec* u = this->Instance->FindNick(params[0]);
+
+	if (u)
+	{
+		/* only join if it's local, otherwise just pass it on! */
+		if (IS_LOCAL(u))
+			chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
+		Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
+	}
+	return true;
+}
+
+bool TreeSocket::RemoteRehash(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 1)
+		return false;
+
+	std::string servermask = params[0];
+
+	if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
+	{
+		this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated by \002"+prefix+"\002.");
+		this->Instance->RehashServer();
+		Utils->ReadConfiguration(false);
+		InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
+	}
+	Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
+	return true;
+}
+
+bool TreeSocket::RemoteKill(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() != 2)
+		return true;
+
+	std::string nick = params[0];
+	userrec* u = this->Instance->FindNick(prefix);
+	userrec* who = this->Instance->FindNick(nick);
+
+	if (who)
+	{
+		/* Prepend kill source, if we don't have one */
+		std::string sourceserv = prefix;
+		if (u)
+		{
+			sourceserv = u->server;
+		}
+		if (*(params[1].c_str()) != '[')
+		{
+			params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
+		}
+		std::string reason = params[1];
+		params[1] = ":" + params[1];
+		Utils->DoOneToAllButSender(prefix,"KILL",params,sourceserv);
+		who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
+		userrec::QuitUser(this->Instance,who,reason);
+	}
+	return true;
+}
+
+bool TreeSocket::LocalPong(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 1)
+		return true;
+
+	if (params.size() == 1)
+	{
+		TreeServer* ServerSource = Utils->FindServer(prefix);
+		if (ServerSource)
+		{
+			ServerSource->SetPingFlag();
+		}
+	}
+	else
+	{
+		std::string forwardto = params[1];
+		if (forwardto == this->Instance->Config->ServerName)
+		{
+			/*
+			 * this is a PONG for us
+			 * if the prefix is a user, check theyre local, and if they are,
+			 * dump the PONG reply back to their fd. If its a server, do nowt.
+			 * Services might want to send these s->s, but we dont need to yet.
+			 */
+			userrec* u = this->Instance->FindNick(prefix);
+			if (u)
+			{
+				u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
+			}
+		}
+		else
+		{
+			// not for us, pass it on :)
+			Utils->DoOneToOne(prefix,"PONG",params,forwardto);
+		}
+	}
+
+	return true;
+}
+
+bool TreeSocket::MetaData(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 3)
+		return true;
+	TreeServer* ServerSource = Utils->FindServer(prefix);
+	if (ServerSource)
+	{
+		if (params[0] == "*")
+		{
+			FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
+		}
+		else if (*(params[0].c_str()) == '#')
+		{
+			chanrec* c = this->Instance->FindChan(params[0]);
+			if (c)
+			{
+				FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
+			}
+		}
+		else if (*(params[0].c_str()) != '#')
+		{
+			userrec* u = this->Instance->FindNick(params[0]);
+			if (u)
+			{
+				FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
+			}
+		}
+	}
+
+	params[2] = ":" + params[2];
+	Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
+	return true;
+}
+
+bool TreeSocket::ServerVersion(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 1)
+		return true;
+
+	TreeServer* ServerSource = Utils->FindServer(prefix);
+
+	if (ServerSource)
+	{
+		ServerSource->SetVersion(params[0]);
+	}
+	params[0] = ":" + params[0];
+	Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
+	return true;
+}
+
+bool TreeSocket::ChangeHost(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 1)
+		return true;
+	userrec* u = this->Instance->FindNick(prefix);
+
+	if (u)
+	{
+		u->ChangeDisplayedHost(params[0].c_str());
+		Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
+	}
+	return true;
+}
+
+bool TreeSocket::AddLine(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 6)
+		return true;
+	bool propogate = false;
+	if (!this->bursting)
+		Utils->lines_to_apply = 0;
+	switch (*(params[0].c_str()))
+	{
+		case 'Z':
+			propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
+			Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
+			if (propogate)
+				Utils->lines_to_apply |= APPLY_ZLINES;
+		break;
+		case 'Q':
+			propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
+			Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
+			if (propogate)
+				Utils->lines_to_apply |= APPLY_QLINES;
+		break;
+		case 'E':
+			propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
+			Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
+		break;
+		case 'G':
+			propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
+			Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
+			if (propogate)
+				Utils->lines_to_apply |= APPLY_GLINES;
+		break;
+		case 'K':
+			propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
+			if (propogate)
+				Utils->lines_to_apply |= APPLY_KLINES;
+		break;
+		default:
+			/* Just in case... */
+			this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
+			propogate = false;
+		break;
+	}
+	/* Send it on its way */
+	if (propogate)
+	{
+		if (atoi(params[4].c_str()))
+		{
+			this->Instance->SNO->WriteToSnoMask('x',"%s Added %cLINE on %s to expire in %lu seconds (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),atoi(params[4].c_str()),params[5].c_str());
+		}
+		else
+		{
+			this->Instance->SNO->WriteToSnoMask('x',"%s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
+		}
+		params[5] = ":" + params[5];
+		Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
+	}
+	if (!this->bursting)
+	{
+		Instance->XLines->apply_lines(Utils->lines_to_apply);
+		Utils->lines_to_apply = 0;
+	}
+	return true;
+}
+
+bool TreeSocket::ChangeName(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 1)
+		return true;
+	userrec* u = this->Instance->FindNick(prefix);
+	if (u)
+	{
+		u->ChangeName(params[0].c_str());
+		params[0] = ":" + params[0];
+		Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
+	}
+	return true;
+}
+
+bool TreeSocket::Whois(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 1)
+		return true;
+	userrec* u = this->Instance->FindNick(prefix);
+	if (u)
+	{
+		// an incoming request
+		if (params.size() == 1)
+		{
+			userrec* x = this->Instance->FindNick(params[0]);
+			if ((x) && (IS_LOCAL(x)))
+			{
+				userrec* x = this->Instance->FindNick(params[0]);
+				char signon[MAXBUF];
+				char idle[MAXBUF];
+				snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
+				snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-Instance->Time(true)));
+				std::deque<std::string> par;
+				par.push_back(prefix);
+				par.push_back(signon);
+				par.push_back(idle);
+				// ours, we're done, pass it BACK
+				Utils->DoOneToOne(params[0],"IDLE",par,u->server);
+			}
+			else
+			{
+				// not ours pass it on
+				Utils->DoOneToOne(prefix,"IDLE",params,x->server);
+			}
+		}
+		else if (params.size() == 3)
+		{
+			std::string who_did_the_whois = params[0];
+			userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
+			if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
+			{
+				// an incoming reply to a whois we sent out
+				std::string nick_whoised = prefix;
+				unsigned long signon = atoi(params[1].c_str());
+				unsigned long idle = atoi(params[2].c_str());
+				if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
+					do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
+			}
+			else
+			{
+				// not ours, pass it on
+				Utils->DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
+			}
+		}
+	}
+	return true;
+}
+
+bool TreeSocket::Push(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 2)
+		return true;
+	userrec* u = this->Instance->FindNick(params[0]);
+	if (!u)
+		return true;
+	if (IS_LOCAL(u))
+	{
+		u->Write(params[1]);
+	}
+	else
+	{
+		// continue the raw onwards
+		params[1] = ":" + params[1];
+		Utils->DoOneToOne(prefix,"PUSH",params,u->server);
+	}
+	return true;
+}
+
+bool TreeSocket::HandleSetTime(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (!params.size() || !Utils->EnableTimeSync)
+		return true;
+
+	bool force = false;
+
+	if ((params.size() == 2) && (params[1] == "FORCE"))
+		force = true;
+
+	time_t rts = atoi(params[0].c_str());
+	time_t us = Instance->Time(true);
+
+	if (rts == us)
+	{
+		Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
+	}
+	else if (force || (rts < us))
+	{
+		int old = Instance->SetTimeDelta(rts - us);
+		Instance->Log(DEBUG, "%s TS (diff %d) from %s applied (old delta was %d)", (force) ? "Forced" : "Lower", rts - us, prefix.c_str(), old);
+
+		Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
+	}
+	else
+	{
+		Instance->Log(DEBUG, "Higher TS (diff %d) from %s overridden", us - rts, prefix.c_str());
+
+		std::deque<std::string> oparams;
+		oparams.push_back(ConvToStr(us));
+
+		Utils->DoOneToMany(prefix, "TIMESET", oparams);
+	}
+
+	return true;
+}
+
+bool TreeSocket::Time(const std::string &prefix, std::deque<std::string> &params)
+{
+	// :source.server TIME remote.server sendernick
+	// :remote.server TIME source.server sendernick TS
+	if (params.size() == 2)
+	{
+		// someone querying our time?
+		if (this->Instance->Config->ServerName == params[0])
+		{
+			userrec* u = this->Instance->FindNick(params[1]);
+			if (u)
+			{
+				params.push_back(ConvToStr(Instance->Time(false)));
+				params[0] = prefix;
+				Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
+			}
+		}
+		else
+		{
+			// not us, pass it on
+			userrec* u = this->Instance->FindNick(params[1]);
+			if (u)
+				Utils->DoOneToOne(prefix,"TIME",params,params[0]);
+		}
+	}
+	else if (params.size() == 3)
+	{
+		// a response to a previous TIME
+		userrec* u = this->Instance->FindNick(params[1]);
+		if ((u) && (IS_LOCAL(u)))
+		{
+			time_t rawtime = atol(params[2].c_str());
+			struct tm * timeinfo;
+			timeinfo = localtime(&rawtime);
+			char tms[26];
+			snprintf(tms,26,"%s",asctime(timeinfo));
+			tms[24] = 0;
+			u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
+		}
+		else
+		{
+			if (u)
+				Utils->DoOneToOne(prefix,"TIME",params,u->server);
+		}
+	}
+	return true;
+}
+
+bool TreeSocket::LocalPing(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 1)
+		return true;
+	if (params.size() == 1)
+	{
+		std::string stufftobounce = params[0];
+		this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
+		return true;
+	}
+	else
+	{
+		std::string forwardto = params[1];
+		if (forwardto == this->Instance->Config->ServerName)
+		{
+			// this is a ping for us, send back PONG to the requesting server
+			params[1] = params[0];
+			params[0] = forwardto;
+			Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
+		}
+		else
+		{
+			// not for us, pass it on :)
+			Utils->DoOneToOne(prefix,"PING",params,forwardto);
+		}
+		return true;
+	}
+}
+
+bool TreeSocket::RemoveStatus(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 1)
+		return true;
+	chanrec* c = Instance->FindChan(params[0]);
+	if (c)
+	{
+		irc::modestacker modestack(false);
+		CUList *ulist = c->GetUsers();
+		const char* y[127];
+		std::deque<std::string> stackresult;
+		std::string x;
+		for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
+		{
+			std::string modesequence = Instance->Modes->ModeString(i->second, c);
+			if (modesequence.length())
+			{
+				irc::spacesepstream sep(modesequence);
+				std::string modeletters = sep.GetToken();
+				while (!modeletters.empty())
+				{
+					char mletter = *(modeletters.begin());
+					modestack.Push(mletter,sep.GetToken());
+					modeletters.erase(modeletters.begin());
+				}
+			}
+		}
+
+		while (modestack.GetStackedLine(stackresult))
+		{
+			stackresult.push_front(ConvToStr(c->age));
+			stackresult.push_front(c->name);
+			Utils->DoOneToMany(Instance->Config->ServerName, "FMODE", stackresult);
+			stackresult.erase(stackresult.begin() + 1);
+			for (size_t z = 0; z < stackresult.size(); z++)
+			{
+				y[z] = stackresult[z].c_str();
+			}
+			userrec* n = new userrec(Instance);
+			n->SetFd(FD_MAGIC_NUMBER);
+			Instance->SendMode(y, stackresult.size(), n);
+			delete n;
+		}
+	}
+	return true;
+}
+
+bool TreeSocket::RemoteServer(const std::string &prefix, std::deque<std::string> &params)
+{
+	if (params.size() < 4)
+		return false;
+	std::string servername = params[0];
+	std::string password = params[1];
+	// hopcount is not used for a remote server, we calculate this ourselves
+	std::string description = params[3];
+	TreeServer* ParentOfThis = Utils->FindServer(prefix);
+	if (!ParentOfThis)
+	{
+		this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
+		return false;
+	}
+	TreeServer* CheckDupe = Utils->FindServer(servername);
+	if (CheckDupe)
+	{
+		this->WriteLine("ERROR :Server "+servername+" already exists!");
+		this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
+		return false;
+	}
+	TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL);
+	ParentOfThis->AddChild(Node);
+	params[3] = ":" + params[3];
+	Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
+	this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
+	return true;
+}
+
+bool TreeSocket::Outbound_Reply_Server(std::deque<std::string> &params)
+{
+	if (params.size() < 4)
+		return false;
+
+	irc::string servername = params[0].c_str();
+	std::string sname = params[0];
+	std::string password = params[1];
+	int hops = atoi(params[2].c_str());
+
+	if (hops)
+	{
+		this->WriteLine("ERROR :Server too far away for authentication");
+		this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
+		return false;
+	}
+	std::string description = params[3];
+	for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
+	{
+		if ((x->Name == servername) && (x->RecvPass == password))
+		{
+			TreeServer* CheckDupe = Utils->FindServer(sname);
+			if (CheckDupe)
+			{
+				this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
+				this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
+				return false;
+			}
+			// Begin the sync here. this kickstarts the
+			// other side, waiting in WAIT_AUTH_2 state,
+			// into starting their burst, as it shows
+			// that we're happy.
+			this->LinkState = CONNECTED;
+			// we should add the details of this server now
+			// to the servers tree, as a child of the root
+			// node.
+			TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this);
+			Utils->TreeRoot->AddChild(Node);
+			params[3] = ":" + params[3];
+			Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);
+			this->bursting = true;
+			this->DoBurst(Node);
+			return true;
+		}
+	}
+	this->WriteLine("ERROR :Invalid credentials");
+	this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
+	return false;
+}
+
+bool TreeSocket::Inbound_Server(std::deque<std::string> &params)
+{
+	if (params.size() < 4)
+		return false;
+	irc::string servername = params[0].c_str();
+	std::string sname = params[0];
+	std::string password = params[1];
+	int hops = atoi(params[2].c_str());
+
+	if (hops)
+	{
+		this->WriteLine("ERROR :Server too far away for authentication");
+		this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
+		return false;
+	}
+	std::string description = params[3];
+	for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
+	{
+		if ((x->Name == servername) && (x->RecvPass == password))
+		{
+			TreeServer* CheckDupe = Utils->FindServer(sname);
+			if (CheckDupe)
+			{
+				this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
+				this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
+				return false;
+			}
+			this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
+			if (this->Hook)
+			{
+				std::string name = InspSocketNameRequest((Module*)Utils->Creator, this->Hook).Send();
+				this->Instance->SNO->WriteToSnoMask('l',"Connection from \2"+sname+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] using transport \2"+name+"\2");
+			}
+
+			this->InboundServerName = sname;
+			this->InboundDescription = description;
+			// this is good. Send our details: Our server name and description and hopcount of 0,
+			// along with the sendpass from this block.
+			this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
+			// move to the next state, we are now waiting for THEM.
+			this->LinkState = WAIT_AUTH_2;
+			return true;
+		}
+	}
+	this->WriteLine("ERROR :Invalid credentials");
+	this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
+	return false;
+}
+
+void TreeSocket::Split(const std::string &line, std::deque<std::string> &n)
+{
+	n.clear();
+	irc::tokenstream tokens(line);
+	std::string param;
+	while ((param = tokens.GetToken()) != "")
+		n.push_back(param);
+	return;
+}
+
+bool TreeSocket::ProcessLine(std::string &line)
+{
+	std::deque<std::string> params;
+	irc::string command;
+	std::string prefix;
+
+	line = line.substr(0, line.find_first_of("\r\n"));
+
+	if (line.empty())
+		return true;
+
+	Instance->Log(DEBUG, "<- %s", line.c_str());
+
+	this->Split(line.c_str(),params);
+
+	if ((params[0][0] == ':') && (params.size() > 1))
+	{
+		prefix = params[0].substr(1);
+		params.pop_front();
+	}
+	command = params[0].c_str();
+	params.pop_front();
+	switch (this->LinkState)
+	{
+		TreeServer* Node;
+
+		case WAIT_AUTH_1:
+			// Waiting for SERVER command from remote server. Server initiating
+			// the connection sends the first SERVER command, listening server
+			// replies with theirs if its happy, then if the initiator is happy,
+			// it starts to send its net sync, which starts the merge, otherwise
+			// it sends an ERROR.
+			if (command == "PASS")
+			{
+				/* Silently ignored */
+			}
+			else if (command == "SERVER")
+			{
+				return this->Inbound_Server(params);
+			}
+			else if (command == "ERROR")
+			{
+				return this->Error(params);
+			}
+			else if (command == "USER")
+			{
+				this->WriteLine("ERROR :Client connections to this port are prohibited.");
+				return false;
+			}
+			else if (command == "CAPAB")
+			{
+				return this->Capab(params);
+			}
+			else if ((command == "U") || (command == "S"))
+			{
+				this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
+				return false;
+			}
+			else
+			{
+				std::string error("ERROR :Invalid command in negotiation phase: ");
+				error.append(command.c_str());
+				this->WriteLine(error);
+				return false;
+			}
+		break;
+		case WAIT_AUTH_2:
+			// Waiting for start of other side's netmerge to say they liked our
+			// password.
+			if (command == "SERVER")
+			{
+				// cant do this, they sent it to us in the WAIT_AUTH_1 state!
+				// silently ignore.
+				return true;
+			}
+			else if ((command == "U") || (command == "S"))
+			{
+				this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
+				return false;
+			}
+			else if (command == "BURST")
+			{
+				if (params.size() && Utils->EnableTimeSync)
+				{
+					/* If a time stamp is provided, apply synchronization */
+					bool force = false;
+					time_t them = atoi(params[0].c_str());
+					time_t us = Instance->Time(true);
+					int delta = them - us;
+					if ((params.size() == 2) && (params[1] == "FORCE"))
+						force = true;
+					if ((delta < -600) || (delta > 600))
+					{
+						this->Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than ten minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
+						this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
+						return false;
+					}
+
+					if (force || (us > them))
+					{
+						this->Instance->SetTimeDelta(them - us);
+						// Send this new timestamp to any other servers
+						Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
+					}
+					else
+					{
+						// Override the timestamp
+						this->WriteLine(":" + Utils->TreeRoot->GetName() + " TIMESET " + ConvToStr(us));
+					}
+				}
+				this->LinkState = CONNECTED;
+				Node = new TreeServer(this->Utils,this->Instance,InboundServerName,InboundDescription,Utils->TreeRoot,this);
+				Utils->TreeRoot->AddChild(Node);
+				params.clear();
+				params.push_back(InboundServerName);
+				params.push_back("*");
+				params.push_back("1");
+				params.push_back(":"+InboundDescription);
+				Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);
+				this->bursting = true;
+				this->DoBurst(Node);
+			}
+			else if (command == "ERROR")
+			{
+				return this->Error(params);
+			}
+			else if (command == "CAPAB")
+			{
+				return this->Capab(params);
+			}
+
+		break;
+		case LISTENER:
+			this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
+			return false;
+		break;
+		case CONNECTING:
+			if (command == "SERVER")
+			{
+				// another server we connected to, which was in WAIT_AUTH_1 state,
+				// has just sent us their credentials. If we get this far, theyre
+				// happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
+				// if we're happy with this, we should send our netburst which
+				// kickstarts the merge.
+				return this->Outbound_Reply_Server(params);
+			}
+			else if (command == "ERROR")
+			{
+				return this->Error(params);
+			}
+		break;
+		case CONNECTED:
+			// This is the 'authenticated' state, when all passwords
+			// have been exchanged and anything past this point is taken
+			// as gospel.
+
+			if (prefix != "")
+			{
+				std::string direction = prefix;
+				userrec* t = this->Instance->FindNick(prefix);
+				if (t)
+				{
+					direction = t->server;
+				}
+				TreeServer* route_back_again = Utils->BestRouteTo(direction);
+				if ((!route_back_again) || (route_back_again->GetSocket() != this))
+				{
+					if (route_back_again)
+						Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
+					return true;
+				}
+				/* Fix by brain:
+				 * When there is activity on the socket, reset the ping counter so
+				 * that we're not wasting bandwidth pinging an active server.
+				 */
+				route_back_again->SetNextPingTime(time(NULL) + 60);
+				route_back_again->SetPingFlag();
+			}
+
+			if (command == "SVSMODE")
+			{
+				/* Services expects us to implement
+				 * SVSMODE. In inspircd its the same as
+				 * MODE anyway.
+				 */
+				command = "MODE";
+			}
+			std::string target = "";
+			/* Yes, know, this is a mess. Its reasonably fast though as we're
+			 * working with std::string here.
+			 */
+			if ((command == "NICK") && (params.size() > 1))
+			{
+				return this->IntroduceClient(prefix,params);
+			}
+			else if (command == "FJOIN")
+			{
+				return this->ForceJoin(prefix,params);
+			}
+			else if (command == "STATS")
+			{
+				return this->Stats(prefix, params);
+			}
+			else if (command == "MOTD")
+			{
+				return this->Motd(prefix, params);
+			}
+			else if (command == "ADMIN")
+			{
+				return this->Admin(prefix, params);
+			}
+			else if (command == "SERVER")
+			{
+				return this->RemoteServer(prefix,params);
+			}
+			else if (command == "ERROR")
+			{
+				return this->Error(params);
+			}
+			else if (command == "OPERTYPE")
+			{
+				return this->OperType(prefix,params);
+			}
+			else if (command == "FMODE")
+			{
+				return this->ForceMode(prefix,params);
+			}
+			else if (command == "KILL")
+			{
+				return this->RemoteKill(prefix,params);
+			}
+			else if (command == "FTOPIC")
+			{
+				return this->ForceTopic(prefix,params);
+			}
+			else if (command == "REHASH")
+			{
+				return this->RemoteRehash(prefix,params);
+			}
+			else if (command == "METADATA")
+			{
+				return this->MetaData(prefix,params);
+			}
+			else if (command == "REMSTATUS")
+			{
+				return this->RemoveStatus(prefix,params);
+			}
+			else if (command == "PING")
+			{
+				/*
+				 * We just got a ping from a server that's bursting.
+				 * This can't be right, so set them to not bursting, and
+				 * apply their lines.
+				 */
+				if (this->bursting)
+				{
+					this->bursting = false;
+					Instance->XLines->apply_lines(Utils->lines_to_apply);
+					Utils->lines_to_apply = 0;
+				}
+				if (prefix == "")
+				{
+					prefix = this->GetName();
+				}
+				return this->LocalPing(prefix,params);
+			}
+			else if (command == "PONG")
+			{
+				/*
+				 * We just got a pong from a server that's bursting.
+				 * This can't be right, so set them to not bursting, and
+				 * apply their lines.
+				 */
+				if (this->bursting)
+				{
+					this->bursting = false;
+					Instance->XLines->apply_lines(Utils->lines_to_apply);
+					Utils->lines_to_apply = 0;
+				}
+				if (prefix == "")
+				{
+					prefix = this->GetName();
+				}
+				return this->LocalPong(prefix,params);
+			}
+			else if (command == "VERSION")
+			{
+				return this->ServerVersion(prefix,params);
+			}
+			else if (command == "FHOST")
+			{
+				return this->ChangeHost(prefix,params);
+			}
+			else if (command == "FNAME")
+			{
+				return this->ChangeName(prefix,params);
+			}
+			else if (command == "ADDLINE")
+			{
+				return this->AddLine(prefix,params);
+			}
+			else if (command == "SVSNICK")
+			{
+				if (prefix == "")
+				{
+					prefix = this->GetName();
+				}
+				return this->ForceNick(prefix,params);
+			}
+			else if (command == "RSQUIT")
+			{
+				return this->RemoteSquit(prefix, params);
+			}
+			else if (command == "IDLE")
+			{
+				return this->Whois(prefix,params);
+			}
+			else if (command == "PUSH")
+			{
+				return this->Push(prefix,params);
+			}
+			else if (command == "TIMESET")
+			{
+				return this->HandleSetTime(prefix, params);
+			}
+			else if (command == "TIME")
+			{
+				return this->Time(prefix,params);
+			}
+			else if ((command == "KICK") && (Utils->IsServer(prefix)))
+			{
+				std::string sourceserv = this->myhost;
+				if (params.size() == 3)
+				{
+					userrec* user = this->Instance->FindNick(params[1]);
+					chanrec* chan = this->Instance->FindChan(params[0]);
+					if (user && chan)
+					{
+						if (!chan->ServerKickUser(user, params[2].c_str(), false))
+							/* Yikes, the channels gone! */
+							delete chan;
+					}
+				}
+				if (this->InboundServerName != "")
+				{
+					sourceserv = this->InboundServerName;
+				}
+				return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+			}
+			else if (command == "SVSJOIN")
+			{
+				if (prefix == "")
+				{
+					prefix = this->GetName();
+				}
+				return this->ServiceJoin(prefix,params);
+			}
+			else if (command == "SQUIT")
+			{
+				if (params.size() == 2)
+				{
+					this->Squit(Utils->FindServer(params[0]),params[1]);
+				}
+				return true;
+			}
+			else if (command == "OPERNOTICE")
+			{
+				std::string sourceserv = this->myhost;
+				if (this->InboundServerName != "")
+					sourceserv = this->InboundServerName;
+				if (params.size() >= 1)
+					Instance->WriteOpers("*** From " + sourceserv + ": " + params[0]);
+				return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+			}
+			else if (command == "MODENOTICE")
+			{
+				std::string sourceserv = this->myhost;
+				if (this->InboundServerName != "")
+					sourceserv = this->InboundServerName;
+				if (params.size() >= 2)
+				{
+					Instance->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", sourceserv.c_str(), params[1].c_str());
+				}
+				return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+			}
+			else if (command == "SNONOTICE")
+			{
+				std::string sourceserv = this->myhost;
+				if (this->InboundServerName != "")
+					sourceserv = this->InboundServerName;
+				if (params.size() >= 2)
+				{
+					Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + sourceserv + ": "+ params[1]);
+				}
+				return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+			}
+			else if (command == "ENDBURST")
+			{
+				this->bursting = false;
+				Instance->XLines->apply_lines(Utils->lines_to_apply);
+				Utils->lines_to_apply = 0;
+				std::string sourceserv = this->myhost;
+				if (this->InboundServerName != "")
+				{
+					sourceserv = this->InboundServerName;
+				}
+				this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
+
+				Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server");
+				rmode.Send(Instance);
+
+				return true;
+			}
+			else
+			{
+				// not a special inter-server command.
+				// Emulate the actual user doing the command,
+				// this saves us having a huge ugly parser.
+				userrec* who = this->Instance->FindNick(prefix);
+				std::string sourceserv = this->myhost;
+				if (this->InboundServerName != "")
+				{
+					sourceserv = this->InboundServerName;
+				}
+				if ((!who) && (command == "MODE"))
+				{
+					if (Utils->IsServer(prefix))
+					{
+						const char* modelist[127];
+						for (size_t i = 0; i < params.size(); i++)
+							modelist[i] = params[i].c_str();
+						userrec* fake = new userrec(Instance);
+						fake->SetFd(FD_MAGIC_NUMBER);
+						this->Instance->SendMode(modelist, params.size(), fake);
+
+						delete fake;
+						/* Hot potato! pass it on! */
+						return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+					}
+				}
+				if (who)
+				{
+					if ((command == "NICK") && (params.size() > 0))
+					{
+						/* On nick messages, check that the nick doesnt
+						 * already exist here. If it does, kill their copy,
+						 * and our copy.
+						 */
+						userrec* x = this->Instance->FindNick(params[0]);
+						if ((x) && (x != who))
+						{
+							std::deque<std::string> p;
+							p.push_back(params[0]);
+							p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
+							Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
+							p.clear();
+							p.push_back(prefix);
+							p.push_back("Nickname collision");
+							Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
+							userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
+							userrec* y = this->Instance->FindNick(prefix);
+							if (y)
+							{
+								userrec::QuitUser(this->Instance,y,"Nickname collision");
+							}
+							return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+						}
+					}
+					// its a user
+					target = who->server;
+					const char* strparams[127];
+					for (unsigned int q = 0; q < params.size(); q++)
+					{
+						strparams[q] = params[q].c_str();
+					}
+					switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
+					{
+						case CMD_INVALID:
+							this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
+							return false;
+						break;
+						case CMD_FAILURE:
+							return true;
+						break;
+						default:
+							/* CMD_SUCCESS and CMD_USER_DELETED fall through here */
+						break;
+					}
+				}
+				else
+				{
+					// its not a user. Its either a server, or somethings screwed up.
+					if (Utils->IsServer(prefix))
+						target = this->Instance->Config->ServerName;
+					else
+						return true;
+				}
+				return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+
+			}
+			return true;
+		break;
+	}
+	return true;
+}
+
+std::string TreeSocket::GetName()
+{
+	std::string sourceserv = this->myhost;
+	if (this->InboundServerName != "")
+	{
+		sourceserv = this->InboundServerName;
+	}
+	return sourceserv;
+}
+
+void TreeSocket::OnTimeout()
+{
+	if (this->LinkState == CONNECTING)
+	{
+		this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
+		Link* MyLink = Utils->FindLink(myhost);
+		if (MyLink)
+			Utils->DoFailOver(MyLink);
+	}
+}
+
+void TreeSocket::OnClose()
+{
+	// Connection closed.
+	// If the connection is fully up (state CONNECTED)
+	// then propogate a netsplit to all peers.
+	std::string quitserver = this->myhost;
+	if (this->InboundServerName != "")
+	{
+		quitserver = this->InboundServerName;
+	}
+	TreeServer* s = Utils->FindServer(quitserver);
+	if (s)
+	{
+		Squit(s,"Remote host closed the connection");
+	}
+
+	if (quitserver != "")
+		this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
+}
+
+int TreeSocket::OnIncomingConnection(int newsock, char* ip)
+{
+	/* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
+	 * or discovering if this port is the server port, we don't allow connections from any
+	 * IPs for which we don't have a link block.
+	 */
+	bool found = false;
+
+	found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
+	if (!found)
+	{
+		for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
+			if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
+				found = true;
+
+		if (!found)
+		{
+			this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
+			close(newsock);
+			return false;
+		}
+	}
+
+	TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip, this->Hook);
+	s = s; /* Whinge whinge whinge, thats all GCC ever does. */
+	return true;
+}