1 files changed, 2007 insertions, 1 deletions

diff --git a/src/users.cpp b/src/users.cpp
index 250586f1d..7da7d6b09 100644
--- a/src/users.cpp
+++ b/src/users.cpp
@@ -1 +1,2007 @@
-/*       +------------------------------------+
 *       | Inspire Internet Relay Chat Daemon |
 *       +------------------------------------+
 *
 *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
 * See: http://www.inspircd.org/wiki/index.php/Credits
 *
 * This program is free but copyrighted software; see
 *            the file COPYING for details.
 *
 * ---------------------------------------------------
 */

#include "inspircd.h"
#include "configreader.h"
#include "channels.h"
#include "users.h"
#include <stdarg.h>
#include "socketengine.h"
#include "wildcard.h"
#include "xline.h"
#include "commands/cmd_whowas.h"

static unsigned long already_sent[MAX_DESCRIPTORS] = {0};

/* XXX: Used for speeding up WriteCommon operations */
unsigned long uniq_id = 0;

bool InitTypes(ServerConfig* conf, const char* tag)
{
	if (conf->opertypes.size())
	{
		for (opertype_t::iterator n = conf->opertypes.begin(); n != conf->opertypes.end(); n++)
		{
			if (n->second)
				delete[] n->second;
		}
	}

	conf->opertypes.clear();
	return true;
}

bool InitClasses(ServerConfig* conf, const char* tag)
{
	if (conf->operclass.size())
	{
		for (operclass_t::iterator n = conf->operclass.begin(); n != conf->operclass.end(); n++)
		{
			if (n->second)
				delete[] n->second;
		}
	}

	conf->operclass.clear();
	return true;
}

bool DoType(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
{
	const char* TypeName = values[0].GetString();
	const char* Classes = values[1].GetString();

	conf->opertypes[TypeName] = strnewdup(Classes);
	return true;
}

bool DoClass(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
{
	const char* ClassName = values[0].GetString();
	const char* CommandList = values[1].GetString();

	conf->operclass[ClassName] = strnewdup(CommandList);
	return true;
}

bool DoneClassesAndTypes(ServerConfig* conf, const char* tag)
{
	return true;
}

std::string userrec::ProcessNoticeMasks(const char *sm)
{
	bool adding = true, oldadding = false;
	const char *c = sm;
	std::string output;

	while (c && *c)
	{
		switch (*c)
		{
			case '+':
				adding = true;
			break;
			case '-':
				adding = false;
			break;
			case '*':
				for (unsigned char d = 'A'; d <= 'z'; d++)
				{
					if (ServerInstance->SNO->IsEnabled(d))
					{
						if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
						{
							if ((oldadding != adding) || (!output.length()))
								output += (adding ? '+' : '-');

							this->SetNoticeMask(d, adding);

							output += d;
						}
					}
					oldadding = adding;
				}
			break;
			default:
				if ((*c >= 'A') && (*c <= 'z') && (ServerInstance->SNO->IsEnabled(*c)))
				{
					if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
					{
						if ((oldadding != adding) || (!output.length()))
							output += (adding ? '+' : '-');

						this->SetNoticeMask(*c, adding);

						output += *c;
					}
				}
				oldadding = adding;
			break;
		}

		*c++;
	}

	return output;
}

void userrec::StartDNSLookup()
{
	try
	{
		bool cached;
		const char* ip = this->GetIPString();

		/* Special case for 4in6 (Have i mentioned i HATE 4in6?) */
		if (!strncmp(ip, "0::ffff:", 8))
			res_reverse = new UserResolver(this->ServerInstance, this, ip + 8, DNS_QUERY_PTR4, cached);
		else
			res_reverse = new UserResolver(this->ServerInstance, this, ip, this->GetProtocolFamily() == AF_INET ? DNS_QUERY_PTR4 : DNS_QUERY_PTR6, cached);

		this->ServerInstance->AddResolver(res_reverse, cached);
	}
	catch (CoreException& e)
	{
		ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
	}
}

UserResolver::UserResolver(InspIRCd* Instance, userrec* user, std::string to_resolve, QueryType qt, bool &cache) :
	Resolver(Instance, to_resolve, qt, cache), bound_user(user)
{
	this->fwd = (qt == DNS_QUERY_A || qt == DNS_QUERY_AAAA);
	this->bound_fd = user->GetFd();
}

void UserResolver::OnLookupComplete(const std::string &result, unsigned int ttl, bool cached)
{
	if ((!this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
	{
		this->bound_user->stored_host = result;
		try
		{
			/* Check we didnt time out */
			if (this->bound_user->registered != REG_ALL)
			{
				bool cached;
#ifdef IPV6
				if (this->bound_user->GetProtocolFamily() == AF_INET6)
				{
					/* IPV6 forward lookup (with possibility of 4in6) */
					const char* ip = this->bound_user->GetIPString();
					bound_user->res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, (!strncmp(ip, "0::ffff:", 8) ? DNS_QUERY_A : DNS_QUERY_AAAA), cached);
				}
				else
					/* IPV4 lookup (mixed protocol mode) */
#endif
				/* IPV4 lookup (ipv4 only mode) */
				bound_user->res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, DNS_QUERY_A, cached);
				this->ServerInstance->AddResolver(bound_user->res_forward, cached);
			}
		}
		catch (CoreException& e)
		{
			ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
		}
	}
	else if ((this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
	{
		/* Both lookups completed */
		std::string result2("0::ffff:");
		result2.append(result);
		if (this->bound_user->GetIPString() == result || this->bound_user->GetIPString() == result2)
		{
			std::string hostname = this->bound_user->stored_host;
			if (hostname.length() < 65)
			{
				/* Check we didnt time out */
				if ((this->bound_user->registered != REG_ALL) && (!this->bound_user->dns_done))
				{
					/* Hostnames starting with : are not a good thing (tm) */
					if (*(hostname.c_str()) == ':')
						hostname.insert(0, "0");

					this->bound_user->WriteServ("NOTICE Auth :*** Found your hostname (%s)%s", hostname.c_str(), (cached ? " -- cached" : ""));
					this->bound_user->dns_done = true;
					strlcpy(this->bound_user->dhost, hostname.c_str(),64);
					strlcpy(this->bound_user->host, hostname.c_str(),64);
					/* Invalidate cache */
					this->bound_user->InvalidateCache();
				}
			}
			else
			{
				if (!this->bound_user->dns_done)
				{
					this->bound_user->WriteServ("NOTICE Auth :*** Your hostname is longer than the maximum of 64 characters, using your IP address (%s) instead.", this->bound_user->GetIPString());
					this->bound_user->dns_done = true;
				}
			}
		}
		else
		{
			if (!this->bound_user->dns_done)
			{
				this->bound_user->WriteServ("NOTICE Auth :*** Your hostname does not match up with your IP address. Sorry, using your IP address (%s) instead.", this->bound_user->GetIPString());
				this->bound_user->dns_done = true;
			}
		}
	}
}

void UserResolver::OnError(ResolverError e, const std::string &errormessage)
{
	if (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user)
	{
		/* Since dns timeout is implemented outside of the resolver, this was a race condition that could result in this message being sent *after*
		 * the user was fully connected. This check fixes that issue  - Special */
		if (!this->bound_user->dns_done)
		{
			/* Error message here */
			this->bound_user->WriteServ("NOTICE Auth :*** Could not resolve your hostname: %s; using your IP address (%s) instead.", errormessage.c_str(), this->bound_user->GetIPString());
			this->bound_user->dns_done = true;
		}
	}
}


bool userrec::IsNoticeMaskSet(unsigned char sm)
{
	return (snomasks[sm-65]);
}

void userrec::SetNoticeMask(unsigned char sm, bool value)
{
	snomasks[sm-65] = value;
}

const char* userrec::FormatNoticeMasks()
{
	static char data[MAXBUF];
	int offset = 0;

	for (int n = 0; n < 64; n++)
	{
		if (snomasks[n])
			data[offset++] = n+65;
	}

	data[offset] = 0;
	return data;
}



bool userrec::IsModeSet(unsigned char m)
{
	return (modes[m-65]);
}

void userrec::SetMode(unsigned char m, bool value)
{
	modes[m-65] = value;
}

const char* userrec::FormatModes()
{
	static char data[MAXBUF];
	int offset = 0;
	for (int n = 0; n < 64; n++)
	{
		if (modes[n])
			data[offset++] = n+65;
	}
	data[offset] = 0;
	return data;
}

void userrec::DecrementModes()
{
	for (int n = 0; n < 64; n++)
	{
		if (modes[n])
		{
			ModeHandler* mh = ServerInstance->Modes->FindMode(n+65, MODETYPE_USER);
			if (mh)
				mh->ChangeCount(-1);
		}
	}
}

userrec::userrec(InspIRCd* Instance) : ServerInstance(Instance)
{
	// the PROPER way to do it, AVOID bzero at *ALL* costs
	*password = *nick = *ident = *host = *dhost = *fullname = *awaymsg = *oper = 0;
	server = (char*)Instance->FindServerNamePtr(Instance->Config->ServerName);
	reset_due = ServerInstance->Time();
	age = ServerInstance->Time(true);
	lines_in = lastping = signon = idle_lastmsg = nping = registered = 0;
	ChannelCount = timeout = flood = bytes_in = bytes_out = cmds_in = cmds_out = 0;
	muted = exempt = haspassed = dns_done = false;
	fd = -1;
	recvq.clear();
	sendq.clear();
	WriteError.clear();
	res_forward = res_reverse = NULL;
	Visibility = NULL;
	ip = NULL;
	chans.clear();
	invites.clear();
	memset(modes,0,sizeof(modes));
	memset(snomasks,0,sizeof(snomasks));
	/* Invalidate cache */
	operquit = cached_fullhost = cached_hostip = cached_makehost = cached_fullrealhost = NULL;
}

void userrec::RemoveCloneCounts()
{
	clonemap::iterator x = ServerInstance->local_clones.find(this->GetIPString());
	if (x != ServerInstance->local_clones.end())
	{
		x->second--;
		if (!x->second)
		{
			ServerInstance->local_clones.erase(x);
		}
	}
	
	clonemap::iterator y = ServerInstance->global_clones.find(this->GetIPString());
	if (y != ServerInstance->global_clones.end())
	{
		y->second--;
		if (!y->second)
		{
			ServerInstance->global_clones.erase(y);
		}
	}
}

userrec::~userrec()
{
	this->InvalidateCache();
	this->DecrementModes();
	if (operquit)
		free(operquit);
	if (ip)
	{
		this->RemoveCloneCounts();

		if (this->GetProtocolFamily() == AF_INET)
		{
			delete (sockaddr_in*)ip;
		}
#ifdef SUPPORT_IP6LINKS
		else
		{
			delete (sockaddr_in6*)ip;
		}
#endif
	}
}

char* userrec::MakeHost()
{
	if (this->cached_makehost)
		return this->cached_makehost;

	char nhost[MAXBUF];
	/* This is much faster than snprintf */
	char* t = nhost;
	for(char* n = ident; *n; n++)
		*t++ = *n;
	*t++ = '@';
	for(char* n = host; *n; n++)
		*t++ = *n;
	*t = 0;

	this->cached_makehost = strdup(nhost);

	return this->cached_makehost;
}

char* userrec::MakeHostIP()
{
	if (this->cached_hostip)
		return this->cached_hostip;

	char ihost[MAXBUF];
	/* This is much faster than snprintf */
	char* t = ihost;
	for(char* n = ident; *n; n++)
		*t++ = *n;
	*t++ = '@';
	for(const char* n = this->GetIPString(); *n; n++)
		*t++ = *n;
	*t = 0;

	this->cached_hostip = strdup(ihost);

	return this->cached_hostip;
}

void userrec::CloseSocket()
{
	shutdown(this->fd,2);
	close(this->fd);
}

char* userrec::GetFullHost()
{
	if (this->cached_fullhost)
		return this->cached_fullhost;

	char result[MAXBUF];
	char* t = result;
	for(char* n = nick; *n; n++)
		*t++ = *n;
	*t++ = '!';
	for(char* n = ident; *n; n++)
		*t++ = *n;
	*t++ = '@';
	for(char* n = dhost; *n; n++)
		*t++ = *n;
	*t = 0;

	this->cached_fullhost = strdup(result);

	return this->cached_fullhost;
}

char* userrec::MakeWildHost()
{
	static char nresult[MAXBUF];
	char* t = nresult;
	*t++ = '*';	*t++ = '!';
	*t++ = '*';	*t++ = '@';
	for(char* n = dhost; *n; n++)
		*t++ = *n;
	*t = 0;
	return nresult;
}

int userrec::ReadData(void* buffer, size_t size)
{
	if (IS_LOCAL(this))
	{
#ifndef WIN32
		return read(this->fd, buffer, size);
#else
		return recv(this->fd, (char*)buffer, size, 0);
#endif
	}
	else
		return 0;
}


char* userrec::GetFullRealHost()
{
	if (this->cached_fullrealhost)
		return this->cached_fullrealhost;

	char fresult[MAXBUF];
	char* t = fresult;
	for(char* n = nick; *n; n++)
		*t++ = *n;
	*t++ = '!';
	for(char* n = ident; *n; n++)
		*t++ = *n;
	*t++ = '@';
	for(char* n = host; *n; n++)
		*t++ = *n;
	*t = 0;

	this->cached_fullrealhost = strdup(fresult);

	return this->cached_fullrealhost;
}

bool userrec::IsInvited(const irc::string &channel)
{
	for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
	{
		if (channel == *i)
		{
			return true;
		}
	}
	return false;
}

InvitedList* userrec::GetInviteList()
{
	return &invites;
}

void userrec::InviteTo(const irc::string &channel)
{
	invites.push_back(channel);
}

void userrec::RemoveInvite(const irc::string &channel)
{
	for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
	{
		if (channel == *i)
		{
			invites.erase(i);
			return;
	 	}
	}
}

bool userrec::HasPermission(const std::string &command)
{
	char* mycmd;
	char* savept;
	char* savept2;

	/*
	 * users on remote servers can completely bypass all permissions based checks.
	 * This prevents desyncs when one server has different type/class tags to another.
	 * That having been said, this does open things up to the possibility of source changes
	 * allowing remote kills, etc - but if they have access to the src, they most likely have
	 * access to the conf - so it's an end to a means either way.
	 */
	if (!IS_LOCAL(this))
		return true;

	// are they even an oper at all?
	if (IS_OPER(this))
	{
		opertype_t::iterator iter_opertype = ServerInstance->Config->opertypes.find(this->oper);
		if (iter_opertype != ServerInstance->Config->opertypes.end())
		{
			char* Classes = strdup(iter_opertype->second);
			char* myclass = strtok_r(Classes," ",&savept);
			while (myclass)
			{
				operclass_t::iterator iter_operclass = ServerInstance->Config->operclass.find(myclass);
				if (iter_operclass != ServerInstance->Config->operclass.end())
				{
					char* CommandList = strdup(iter_operclass->second);
					mycmd = strtok_r(CommandList," ",&savept2);
					while (mycmd)
					{
						if ((!strcasecmp(mycmd,command.c_str())) || (*mycmd == '*'))
						{
							free(Classes);
							free(CommandList);
							return true;
						}
						mycmd = strtok_r(NULL," ",&savept2);
					}
					free(CommandList);
				}
				myclass = strtok_r(NULL," ",&savept);
			}
			free(Classes);
		}
	}
	return false;
}

/** NOTE: We cannot pass a const reference to this method.
 * The string is changed by the workings of the method,
 * so that if we pass const ref, we end up copying it to
 * something we can change anyway. Makes sense to just let
 * the compiler do that copy for us.
 */
bool userrec::AddBuffer(std::string a)
{
	try
	{
		std::string::size_type i = a.rfind('\r');

		while (i != std::string::npos)
		{
			a.erase(i, 1);
			i = a.rfind('\r');
		}

		if (a.length())
			recvq.append(a);

		if (recvq.length() > (unsigned)this->recvqmax)
		{
			this->SetWriteError("RecvQ exceeded");
			ServerInstance->WriteOpers("*** User %s RecvQ of %d exceeds connect class maximum of %d",this->nick,recvq.length(),this->recvqmax);
			return false;
		}

		return true;
	}

	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::AddBuffer()");
		return false;
	}
}

bool userrec::BufferIsReady()
{
	return (recvq.find('\n') != std::string::npos);
}

void userrec::ClearBuffer()
{
	recvq.clear();
}

std::string userrec::GetBuffer()
{
	try
	{
		if (!recvq.length())
			return "";

		/* Strip any leading \r or \n off the string.
		 * Usually there are only one or two of these,
		 * so its is computationally cheap to do.
		 */
		std::string::iterator t = recvq.begin();
		while (t != recvq.end() && (*t == '\r' || *t == '\n'))
		{
			recvq.erase(t);
			t = recvq.begin();
		}

		for (std::string::iterator x = recvq.begin(); x != recvq.end(); x++)
		{
			/* Find the first complete line, return it as the
			 * result, and leave the recvq as whats left
			 */
			if (*x == '\n')
			{
				std::string ret = std::string(recvq.begin(), x);
				recvq.erase(recvq.begin(), x + 1);
				return ret;
			}
		}
		return "";
	}

	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::GetBuffer()");
		return "";
	}
}

void userrec::AddWriteBuf(const std::string &data)
{
	if (*this->GetWriteError())
		return;

	if (sendq.length() + data.length() > (unsigned)this->sendqmax)
	{
		/*
		 * Fix by brain - Set the error text BEFORE calling writeopers, because
		 * if we dont it'll recursively  call here over and over again trying
		 * to repeatedly add the text to the sendq!
		 */
		this->SetWriteError("SendQ exceeded");
		ServerInstance->WriteOpers("*** User %s SendQ of %d exceeds connect class maximum of %d",this->nick,sendq.length() + data.length(),this->sendqmax);
		return;
	}

	try
	{
		if (data.length() > MAXBUF - 2) /* MAXBUF has a value of 514, to account for line terminators */
			sendq.append(data.substr(0,MAXBUF - 4)).append("\r\n"); /* MAXBUF-4 = 510 */
		else
			sendq.append(data);
	}
	catch (...)
	{
		this->SetWriteError("SendQ exceeded");
		ServerInstance->WriteOpers("*** User %s SendQ got an exception",this->nick);
	}
}

// send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
void userrec::FlushWriteBuf()
{
	try
	{
		if ((this->fd == FD_MAGIC_NUMBER) || (*this->GetWriteError()))
		{
			sendq.clear();
		}
		if ((sendq.length()) && (this->fd != FD_MAGIC_NUMBER))
		{
			int old_sendq_length = sendq.length();
#ifndef WIN32
		int n_sent = write(this->fd, this->sendq.data(), this->sendq.length());
#else
		int n_sent = send(this->fd, (const char*)this->sendq.data(), this->sendq.length(), 0);
#endif
			if (n_sent == -1)
			{
				if (errno == EAGAIN)
				{
					/* The socket buffer is full. This isnt fatal,
					 * try again later.
					 */
					this->ServerInstance->SE->WantWrite(this);
				}
				else
				{
					/* Fatal error, set write error and bail
					 */
					this->SetWriteError(strerror(errno));
					return;
				}
			}
			else
			{
				/* advance the queue */
				if (n_sent)
					this->sendq = this->sendq.substr(n_sent);
				/* update the user's stats counters */
				this->bytes_out += n_sent;
				this->cmds_out++;
				if (n_sent != old_sendq_length)
					this->ServerInstance->SE->WantWrite(this);
			}
		}
	}

	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::FlushWriteBuf()");
	}

	if (this->sendq.empty())
	{
		FOREACH_MOD(I_OnBufferFlushed,OnBufferFlushed(this));
	}
}

void userrec::SetWriteError(const std::string &error)
{
	try
	{
		// don't try to set the error twice, its already set take the first string.
		if (this->WriteError.empty())
			this->WriteError = error;
	}

	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::SetWriteError()");
	}
}

const char* userrec::GetWriteError()
{
	return this->WriteError.c_str();
}

void userrec::Oper(const std::string &opertype)
{
	try
	{
		this->modes[UM_OPERATOR] = 1;
		this->WriteServ("MODE %s :+o", this->nick);
		FOREACH_MOD(I_OnOper, OnOper(this, opertype));
		ServerInstance->Log(DEFAULT,"OPER: %s!%s@%s opered as type: %s", this->nick, this->ident, this->host, opertype.c_str());
		strlcpy(this->oper, opertype.c_str(), NICKMAX - 1);
		ServerInstance->all_opers.push_back(this);
		FOREACH_MOD(I_OnPostOper,OnPostOper(this, opertype));
	}

	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::Oper()");
	}
}

void userrec::UnOper()
{
	try
	{
		if (IS_OPER(this))
		{
			// unset their oper type (what IS_OPER checks), and remove +o
			*this->oper = 0;
			this->modes[UM_OPERATOR] = 0;

			// remove them from the opers list.
			for (std::vector<userrec*>::iterator a = ServerInstance->all_opers.begin(); a < ServerInstance->all_opers.end(); a++)
			{
				if (*a == this)
				{
					ServerInstance->all_opers.erase(a);
					return;
				}
			}
		}
	}

	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::UnOper()");
	}
}

void userrec::QuitUser(InspIRCd* Instance, userrec *user, const std::string &quitreason, const char* operreason)
{
	user->muted = true;
	Instance->GlobalCulls.AddItem(user, quitreason.c_str(), operreason);
}

/* adds or updates an entry in the whowas list */
void userrec::AddToWhoWas()
{
	command_t* whowas_command = ServerInstance->Parser->GetHandler("WHOWAS");
	if (whowas_command)
	{
		std::deque<classbase*> params;
		params.push_back(this);
		whowas_command->HandleInternal(WHOWAS_ADD, params);
	}
}

/* add a client connection to the sockets list */
void userrec::AddClient(InspIRCd* Instance, int socket, int port, bool iscached, int socketfamily, sockaddr* ip)
{
	std::string tempnick = ConvToStr(socket) + "-unknown";
	user_hash::iterator iter = Instance->clientlist->find(tempnick);
	char ipaddr[MAXBUF];
#ifdef IPV6
	if (socketfamily == AF_INET6)
		inet_ntop(AF_INET6, &((const sockaddr_in6*)ip)->sin6_addr, ipaddr, sizeof(ipaddr));
	else
#endif
	inet_ntop(AF_INET, &((const sockaddr_in*)ip)->sin_addr, ipaddr, sizeof(ipaddr));
	userrec* New;
	int j = 0;

	Instance->unregistered_count++;

	/*
	 * fix by brain.
	 * as these nicknames are 'RFC impossible', we can be sure nobody is going to be
	 * using one as a registered connection. As they are per fd, we can also safely assume
	 * that we wont have collisions. Therefore, if the nick exists in the list, its only
	 * used by a dead socket, erase the iterator so that the new client may reclaim it.
	 * this was probably the cause of 'server ignores me when i hammer it with reconnects'
	 * issue in earlier alphas/betas
	 */
	if (iter != Instance->clientlist->end())
	{
		userrec* goner = iter->second;
		DELETE(goner);
		Instance->clientlist->erase(iter);
	}

	New = new userrec(Instance);
	(*(Instance->clientlist))[tempnick] = New;
	New->fd = socket;
	strlcpy(New->nick,tempnick.c_str(),NICKMAX-1);

	New->server = Instance->FindServerNamePtr(Instance->Config->ServerName);
	/* We don't need range checking here, we KNOW 'unknown\0' will fit into the ident field. */
	strcpy(New->ident, "unknown");

	New->registered = REG_NONE;
	New->signon = Instance->Time() + Instance->Config->dns_timeout;
	New->lastping = 1;

	New->SetSockAddr(socketfamily, ipaddr, port);

	/* Smarter than your average bear^H^H^H^Hset of strlcpys. */
	for (const char* temp = New->GetIPString(); *temp && j < 64; temp++, j++)
		New->dhost[j] = New->host[j] = *temp;
	New->dhost[j] = New->host[j] = 0;

	Instance->AddLocalClone(New);
	Instance->AddGlobalClone(New);

	/*
	 * First class check. We do this again in FullConnect after DNS is done, and NICK/USER is recieved.
	 * See my note down there for why this is required. DO NOT REMOVE. :) -- w00t
	 */
	ConnectClass* i = New->GetClass();

	if (!i)
	{
		userrec::QuitUser(Instance, New, "Access denied by configuration");
		return;
	}

	New->CheckClass();

	New->pingmax = i->GetPingTime();
	New->nping = Instance->Time() + i->GetPingTime() + Instance->Config->dns_timeout;
	New->timeout = Instance->Time() + i->GetRegTimeout();
	New->flood = i->GetFlood();
	New->threshold = i->GetThreshold();
	New->sendqmax = i->GetSendqMax();
	New->recvqmax = i->GetRecvqMax();

	Instance->local_users.push_back(New);

	if ((Instance->local_users.size() > Instance->Config->SoftLimit) || (Instance->local_users.size() >= MAXCLIENTS))
	{
		Instance->WriteOpers("*** Warning: softlimit value has been reached: %d clients", Instance->Config->SoftLimit);
		userrec::QuitUser(Instance, New,"No more connections allowed");
		return;
	}

	/*
	 * XXX -
	 * this is done as a safety check to keep the file descriptors within range of fd_ref_table.
	 * its a pretty big but for the moment valid assumption:
	 * file descriptors are handed out starting at 0, and are recycled as theyre freed.
	 * therefore if there is ever an fd over 65535, 65536 clients must be connected to the
	 * irc server at once (or the irc server otherwise initiating this many connections, files etc)
	 * which for the time being is a physical impossibility (even the largest networks dont have more
	 * than about 10,000 users on ONE server!)
	 */
#ifndef WINDOWS
	if ((unsigned int)socket >= MAX_DESCRIPTORS)
	{
		userrec::QuitUser(Instance, New, "Server is full");
		return;
	}
#endif

	New->exempt = (Instance->XLines->matches_exception(New) != NULL);
	if (!New->exempt)
	{
		ZLine* r = Instance->XLines->matches_zline(ipaddr);
		if (r)
		{
			char reason[MAXBUF];
			if (*Instance->Config->MoronBanner)
				New->WriteServ("NOTICE %s :*** %s", New->nick, Instance->Config->MoronBanner);
			snprintf(reason,MAXBUF,"Z-Lined: %s",r->reason);
			userrec::QuitUser(Instance, New, reason);
			return;
		}
	}

	if (socket > -1)
	{
		if (!Instance->SE->AddFd(New))
		{
			userrec::QuitUser(Instance, New, "Internal error handling connection");
			return;
		}
	}

	/* NOTE: even if dns lookups are *off*, we still need to display this.
	 * BOPM and other stuff requires it.
	 */
	New->WriteServ("NOTICE Auth :*** Looking up your hostname...");
}

unsigned long userrec::GlobalCloneCount()
{
	clonemap::iterator x = ServerInstance->global_clones.find(this->GetIPString());
	if (x != ServerInstance->global_clones.end())
		return x->second;
	else
		return 0;
}

unsigned long userrec::LocalCloneCount()
{
	clonemap::iterator x = ServerInstance->local_clones.find(this->GetIPString());
	if (x != ServerInstance->local_clones.end())
		return x->second;
	else
		return 0;
}

/*
 * Check class restrictions
 */
void userrec::CheckClass()
{
	ConnectClass* a = this->GetClass();

	if ((!a) || (a->GetType() == CC_DENY))
	{
		userrec::QuitUser(ServerInstance, this, "Unauthorised connection");
		return;
	}
	else if ((a->GetMaxLocal()) && (this->LocalCloneCount() > a->GetMaxLocal()))
	{
		userrec::QuitUser(ServerInstance, this, "No more connections allowed from your host via this connect class (local)");
		ServerInstance->WriteOpers("*** WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
		return;
	}
	else if ((a->GetMaxGlobal()) && (this->GlobalCloneCount() > a->GetMaxGlobal()))
	{
		userrec::QuitUser(ServerInstance, this, "No more connections allowed from your host via this connect class (global)");
		ServerInstance->WriteOpers("*** WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
		return;
	}
}

void userrec::FullConnect()
{
	ServerInstance->stats->statsConnects++;
	this->idle_lastmsg = ServerInstance->Time();

	/*
	 * You may be thinking "wtf, we checked this in userrec::AddClient!" - and yes, we did, BUT.
	 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
	 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
	 * Don't remove this! -- w00t
	 */
	this->CheckClass();
	
	/* Check the password, if one is required by the user's connect class.
	 * This CANNOT be in CheckClass(), because that is called prior to PASS as well!
	 */
	if ((!this->GetClass()->GetPass().empty()) && (!this->haspassed))
	{
		userrec::QuitUser(ServerInstance, this, "Invalid password");
		return;
	}
	
	if (!this->exempt)
	{
		GLine* r = ServerInstance->XLines->matches_gline(this);

		if (r)
		{
			this->muted = true;
			char reason[MAXBUF];
			if (*ServerInstance->Config->MoronBanner)
				this->WriteServ("NOTICE %s :*** %s", this->nick, ServerInstance->Config->MoronBanner);
			snprintf(reason,MAXBUF,"G-Lined: %s",r->reason);
			ServerInstance->GlobalCulls.AddItem(this, reason);
			return;
		}

		KLine* n = ServerInstance->XLines->matches_kline(this);

		if (n)
		{
			this->muted = true;
			char reason[MAXBUF];
			if (*ServerInstance->Config->MoronBanner)
				this->WriteServ("NOTICE %s :*** %s", this, ServerInstance->Config->MoronBanner);
			snprintf(reason,MAXBUF,"K-Lined: %s",n->reason);
			ServerInstance->GlobalCulls.AddItem(this, reason);
			return;
		}
	}

	this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network);
	this->WriteServ("001 %s :Welcome to the %s IRC Network %s!%s@%s",this->nick, ServerInstance->Config->Network, this->nick, this->ident, this->host);
	this->WriteServ("002 %s :Your host is %s, running version %s",this->nick,ServerInstance->Config->ServerName,VERSION);
	this->WriteServ("003 %s :This server was created %s %s", this->nick, __TIME__, __DATE__);
	this->WriteServ("004 %s %s %s %s %s %s", this->nick, ServerInstance->Config->ServerName, VERSION, ServerInstance->Modes->UserModeList().c_str(), ServerInstance->Modes->ChannelModeList().c_str(), ServerInstance->Modes->ParaModeList().c_str());

	ServerInstance->Config->Send005(this);

	this->ShowMOTD();

	/* Now registered */
	if (ServerInstance->unregistered_count)
		ServerInstance->unregistered_count--;

	/* Trigger LUSERS output, give modules a chance too */
	int MOD_RESULT = 0;
	FOREACH_RESULT(I_OnPreCommand, OnPreCommand("LUSERS", NULL, 0, this, true, "LUSERS"));
	if (!MOD_RESULT)
		ServerInstance->CallCommandHandler("LUSERS", NULL, 0, this);

	/*
	 * fix 3 by brain, move registered = 7 below these so that spurious modes and host
	 * changes dont go out onto the network and produce 'fake direction'.
	 */
	FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));

	this->registered = REG_ALL;

	FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));

	ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s] [%s]", this->GetPort(), this->nick, this->ident, this->host, this->GetIPString(), this->fullname);
}

/** userrec::UpdateNick()
 * re-allocates a nick in the user_hash after they change nicknames,
 * returns a pointer to the new user as it may have moved
 */
userrec* userrec::UpdateNickHash(const char* New)
{
	try
	{
		//user_hash::iterator newnick;
		user_hash::iterator oldnick = ServerInstance->clientlist->find(this->nick);

		if (!strcasecmp(this->nick,New))
			return oldnick->second;

		if (oldnick == ServerInstance->clientlist->end())
			return NULL; /* doesnt exist */

		userrec* olduser = oldnick->second;
		(*(ServerInstance->clientlist))[New] = olduser;
		ServerInstance->clientlist->erase(oldnick);
		return olduser;
	}

	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::UpdateNickHash()");
		return NULL;
	}
}

void userrec::InvalidateCache()
{
	/* Invalidate cache */
	if (cached_fullhost)
		free(cached_fullhost);
	if (cached_hostip)
		free(cached_hostip);
	if (cached_makehost)
		free(cached_makehost);
	if (cached_fullrealhost)
		free(cached_fullrealhost);
	cached_fullhost = cached_hostip = cached_makehost = cached_fullrealhost = NULL;
}

bool userrec::ForceNickChange(const char* newnick)
{
	try
	{
		int MOD_RESULT = 0;

		this->InvalidateCache();

		FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(this, newnick));

		if (MOD_RESULT)
		{
			ServerInstance->stats->statsCollisions++;
			return false;
		}

		if (ServerInstance->XLines->matches_qline(newnick))
		{
			ServerInstance->stats->statsCollisions++;
			return false;
		}

		if (this->registered == REG_ALL)
		{
			return (ServerInstance->Parser->CallHandler("NICK", &newnick, 1, this) == CMD_SUCCESS);
		}
		return false;
	}

	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::ForceNickChange()");
		return false;
	}
}

void userrec::SetSockAddr(int protocol_family, const char* ip, int port)
{
	switch (protocol_family)
	{
#ifdef SUPPORT_IP6LINKS
		case AF_INET6:
		{
			sockaddr_in6* sin = new sockaddr_in6;
			sin->sin6_family = AF_INET6;
			sin->sin6_port = port;
			inet_pton(AF_INET6, ip, &sin->sin6_addr);
			this->ip = (sockaddr*)sin;
		}
		break;
#endif
		case AF_INET:
		{
			sockaddr_in* sin = new sockaddr_in;
			sin->sin_family = AF_INET;
			sin->sin_port = port;
			inet_pton(AF_INET, ip, &sin->sin_addr);
			this->ip = (sockaddr*)sin;
		}
		break;
		default:
			ServerInstance->Log(DEBUG,"Ut oh, I dont know protocol %d to be set on '%s'!", protocol_family, this->nick);
		break;
	}
}

int userrec::GetPort()
{
	if (this->ip == NULL)
		return 0;

	switch (this->GetProtocolFamily())
	{
#ifdef SUPPORT_IP6LINKS
		case AF_INET6:
		{
			sockaddr_in6* sin = (sockaddr_in6*)this->ip;
			return sin->sin6_port;
		}
		break;
#endif
		case AF_INET:
		{
			sockaddr_in* sin = (sockaddr_in*)this->ip;
			return sin->sin_port;
		}
		break;
		default:
		break;
	}
	return 0;
}

int userrec::GetProtocolFamily()
{
	if (this->ip == NULL)
		return 0;

	sockaddr_in* sin = (sockaddr_in*)this->ip;
	return sin->sin_family;
}

const char* userrec::GetIPString()
{
	static char buf[1024];

	if (this->ip == NULL)
		return "";

	switch (this->GetProtocolFamily())
	{
#ifdef SUPPORT_IP6LINKS
		case AF_INET6:
		{
			static char temp[1024];

			sockaddr_in6* sin = (sockaddr_in6*)this->ip;
			inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
			/* IP addresses starting with a : on irc are a Bad Thing (tm) */
			if (*buf == ':')
			{
				strlcpy(&temp[1], buf, sizeof(temp) - 1);
				*temp = '0';
				return temp;
			}
			return buf;
		}
		break;
#endif
		case AF_INET:
		{
			sockaddr_in* sin = (sockaddr_in*)this->ip;
			inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
			return buf;
		}
		break;
		default:
		break;
	}
	return "";
}

const char* userrec::GetIPString(char* buf)
{
	if (this->ip == NULL)
	{
		*buf = 0;
		return buf;
	}

	switch (this->GetProtocolFamily())
	{
#ifdef SUPPORT_IP6LINKS
		case AF_INET6:
		{
			static char temp[1024];

			sockaddr_in6* sin = (sockaddr_in6*)this->ip;
			inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
			/* IP addresses starting with a : on irc are a Bad Thing (tm) */
			if (*buf == ':')
			{
				strlcpy(&temp[1], buf, sizeof(temp) - 1);
				*temp = '0';
				strlcpy(buf, temp, sizeof(temp));
			}
			return buf;
		}
		break;
#endif
		case AF_INET:
		{
			sockaddr_in* sin = (sockaddr_in*)this->ip;
			inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
			return buf;
		}
		break;

		default:
		break;
	}
	return "";
}

/** NOTE: We cannot pass a const reference to this method.
 * The string is changed by the workings of the method,
 * so that if we pass const ref, we end up copying it to
 * something we can change anyway. Makes sense to just let
 * the compiler do that copy for us.
 */
void userrec::Write(std::string text)
{
#ifdef WINDOWS
	if ((this->fd < 0) || (this->m_internalFd > MAX_DESCRIPTORS))
#else
	if ((this->fd < 0) || (this->fd > MAX_DESCRIPTORS))
#endif
		return;

	try
	{
		/* ServerInstance->Log(DEBUG,"C[%d] <- %s", this->GetFd(), text.c_str());
		 * WARNING: The above debug line is VERY loud, do NOT
		 * enable it till we have a good way of filtering it
		 * out of the logs (e.g. 1.2 would be good).
		 */
		text.append("\r\n");
	}
	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::Write() std::string::append");
		return;
	}

	if (ServerInstance->Config->GetIOHook(this->GetPort()))
	{
		try
		{
			/* XXX: The lack of buffering here is NOT a bug, modules implementing this interface have to
			 * implement their own buffering mechanisms
			 */
			ServerInstance->Config->GetIOHook(this->GetPort())->OnRawSocketWrite(this->fd, text.data(), text.length());
		}
		catch (CoreException& modexcept)
		{
			ServerInstance->Log(DEBUG, "%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
		}
	}
	else
	{
		this->AddWriteBuf(text);
	}
	ServerInstance->stats->statsSent += text.length();
	this->ServerInstance->SE->WantWrite(this);
}

/** Write()
 */
void userrec::Write(const char *text, ...)
{
	va_list argsPtr;
	char textbuffer[MAXBUF];

	va_start(argsPtr, text);
	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
	va_end(argsPtr);

	this->Write(std::string(textbuffer));
}

void userrec::WriteServ(const std::string& text)
{
	char textbuffer[MAXBUF];

	snprintf(textbuffer,MAXBUF,":%s %s",ServerInstance->Config->ServerName,text.c_str());
	this->Write(std::string(textbuffer));
}

/** WriteServ()
 *  Same as Write(), except `text' is prefixed with `:server.name '.
 */
void userrec::WriteServ(const char* text, ...)
{
	va_list argsPtr;
	char textbuffer[MAXBUF];

	va_start(argsPtr, text);
	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
	va_end(argsPtr);

	this->WriteServ(std::string(textbuffer));
}


void userrec::WriteFrom(userrec *user, const std::string &text)
{
	char tb[MAXBUF];

	snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str());

	this->Write(std::string(tb));
}


/* write text from an originating user to originating user */

void userrec::WriteFrom(userrec *user, const char* text, ...)
{
	va_list argsPtr;
	char textbuffer[MAXBUF];

	va_start(argsPtr, text);
	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
	va_end(argsPtr);

	this->WriteFrom(user, std::string(textbuffer));
}


/* write text to an destination user from a source user (e.g. user privmsg) */

void userrec::WriteTo(userrec *dest, const char *data, ...)
{
	char textbuffer[MAXBUF];
	va_list argsPtr;

	va_start(argsPtr, data);
	vsnprintf(textbuffer, MAXBUF, data, argsPtr);
	va_end(argsPtr);

	this->WriteTo(dest, std::string(textbuffer));
}

void userrec::WriteTo(userrec *dest, const std::string &data)
{
	dest->WriteFrom(this, data);
}


void userrec::WriteCommon(const char* text, ...)
{
	char textbuffer[MAXBUF];
	va_list argsPtr;

	if (this->registered != REG_ALL)
		return;

	va_start(argsPtr, text);
	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
	va_end(argsPtr);

	this->WriteCommon(std::string(textbuffer));
}

void userrec::WriteCommon(const std::string &text)
{
	try
	{
		bool sent_to_at_least_one = false;
		char tb[MAXBUF];

		if (this->registered != REG_ALL)
			return;

		uniq_id++;

		/* We dont want to be doing this n times, just once */
		snprintf(tb,MAXBUF,":%s %s",this->GetFullHost(),text.c_str());
		std::string out = tb;

		for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
		{
			CUList* ulist = v->first->GetUsers();
			for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
			{
				if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
				{
					already_sent[i->first->fd] = uniq_id;
					i->first->Write(out);
					sent_to_at_least_one = true;
				}
			}
		}

		/*
		 * if the user was not in any channels, no users will receive the text. Make sure the user
		 * receives their OWN message for WriteCommon
		 */
		if (!sent_to_at_least_one)
		{
			this->Write(std::string(tb));
		}
	}

	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::WriteCommon()");
	}
}


/* write a formatted string to all users who share at least one common
 * channel, NOT including the source user e.g. for use in QUIT
 */

void userrec::WriteCommonExcept(const char* text, ...)
{
	char textbuffer[MAXBUF];
	va_list argsPtr;

	va_start(argsPtr, text);
	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
	va_end(argsPtr);

	this->WriteCommonExcept(std::string(textbuffer));
}

void userrec::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
{
	char tb1[MAXBUF];
	char tb2[MAXBUF];

	if (this->registered != REG_ALL)
		return;

	uniq_id++;
	snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost(),normal_text.c_str());
	snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost(),oper_text.c_str());
	std::string out1 = tb1;
	std::string out2 = tb2;

	for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
	{
		CUList *ulist = v->first->GetUsers();
		for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
		{
			if (this != i->first)
			{
				if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
				{
					already_sent[i->first->fd] = uniq_id;
					i->first->Write(IS_OPER(i->first) ? out2 : out1);
				}
			}
		}
	}
}

void userrec::WriteCommonExcept(const std::string &text)
{
	char tb1[MAXBUF];
	std::string out1;

	if (this->registered != REG_ALL)
		return;

	uniq_id++;
	snprintf(tb1,MAXBUF,":%s %s",this->GetFullHost(),text.c_str());
	out1 = tb1;

	for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
	{
		CUList *ulist = v->first->GetUsers();
		for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
		{
			if (this != i->first)
			{
				if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
				{
					already_sent[i->first->fd] = uniq_id;
					i->first->Write(out1);
				}
			}
		}
	}

}

void userrec::WriteWallOps(const std::string &text)
{
	if (!IS_OPER(this) && IS_LOCAL(this))
		return;

	std::string wallop("WALLOPS :");
	wallop.append(text);

	for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
	{
		userrec* t = *i;
		if (t->modes[UM_WALLOPS])
			this->WriteTo(t,wallop);
	}
}

void userrec::WriteWallOps(const char* text, ...)
{
	char textbuffer[MAXBUF];
	va_list argsPtr;

	va_start(argsPtr, text);
	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
	va_end(argsPtr);

	this->WriteWallOps(std::string(textbuffer));
}

/* return 0 or 1 depending if users u and u2 share one or more common channels
 * (used by QUIT, NICK etc which arent channel specific notices)
 *
 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
 * the first users channels then the second users channels within the outer loop,
 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
 * all possible iterations). However this new function instead checks against the
 * channel's userlist in the inner loop which is a std::map<userrec*,userrec*>
 * and saves us time as we already know what pointer value we are after.
 * Don't quote me on the maths as i am not a mathematician or computer scientist,
 * but i believe this algorithm is now x+(log y) maximum iterations instead.
 */
bool userrec::SharesChannelWith(userrec *other)
{
	if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
		return false;

	/* Outer loop */
	for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
	{
		/* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
		 * by replacing it with a map::find which *should* be more efficient
		 */
		if (i->first->HasUser(other))
			return true;
	}
	return false;
}

bool userrec::ChangeName(const char* gecos)
{
	if (!strcmp(gecos, this->fullname))
		return true;

	if (IS_LOCAL(this))
	{
		int MOD_RESULT = 0;
		FOREACH_RESULT(I_OnChangeLocalUserGECOS,OnChangeLocalUserGECOS(this,gecos));
		if (MOD_RESULT)
			return false;
		FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
	}
	strlcpy(this->fullname,gecos,MAXGECOS+1);

	return true;
}

bool userrec::ChangeDisplayedHost(const char* host)
{
	if (!strcmp(host, this->dhost))
		return true;

	if (IS_LOCAL(this))
	{
		int MOD_RESULT = 0;
		FOREACH_RESULT(I_OnChangeLocalUserHost,OnChangeLocalUserHost(this,host));
		if (MOD_RESULT)
			return false;
		FOREACH_MOD(I_OnChangeHost,OnChangeHost(this,host));
	}
	if (this->ServerInstance->Config->CycleHosts)
		this->WriteCommonExcept("QUIT :Changing hosts");

	/* Fix by Om: userrec::dhost is 65 long, this was truncating some long hosts */
	strlcpy(this->dhost,host,64);

	this->InvalidateCache();

	if (this->ServerInstance->Config->CycleHosts)
	{
		for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
		{
			i->first->WriteAllExceptSender(this, false, 0, "JOIN %s", i->first->name);
			std::string n = this->ServerInstance->Modes->ModeString(this, i->first);
			if (n.length() > 0)
				i->first->WriteAllExceptSender(this, true, 0, "MODE %s +%s", i->first->name, n.c_str());
		}
	}

	if (IS_LOCAL(this))
		this->WriteServ("396 %s %s :is now your displayed host",this->nick,this->dhost);

	return true;
}

bool userrec::ChangeIdent(const char* newident)
{
	if (!strcmp(newident, this->ident))
		return true;

	if (this->ServerInstance->Config->CycleHosts)
		this->WriteCommonExcept("%s","QUIT :Changing ident");

	strlcpy(this->ident, newident, IDENTMAX+2);

	this->InvalidateCache();

	if (this->ServerInstance->Config->CycleHosts)
	{
		for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
		{
			i->first->WriteAllExceptSender(this, false, 0, "JOIN %s", i->first->name);
			std::string n = this->ServerInstance->Modes->ModeString(this, i->first);
			if (n.length() > 0)
				i->first->WriteAllExceptSender(this, true, 0, "MODE %s +%s", i->first->name, n.c_str());
		}
	}

	return true;
}

void userrec::SendAll(const char* command, char* text, ...)
{
	char textbuffer[MAXBUF];
	char formatbuffer[MAXBUF];
	va_list argsPtr;

	va_start(argsPtr, text);
	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
	va_end(argsPtr);

	snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost(), command, textbuffer);
	std::string fmt = formatbuffer;

	for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
	{
		(*i)->Write(fmt);
	}
}


std::string userrec::ChannelList(userrec* source)
{
	try
	{
		std::string list;
		for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
		{
			/* If the target is the same as the sender, let them see all their channels.
			 * If the channel is NOT private/secret OR the user shares a common channel
			 * If the user is an oper, and the <options:operspywhois> option is set.
			 */
			if ((source == this) || (IS_OPER(source) && ServerInstance->Config->OperSpyWhois) || (((!i->first->modes[CM_PRIVATE]) && (!i->first->modes[CM_SECRET])) || (i->first->HasUser(source))))
			{
				list.append(i->first->GetPrefixChar(this)).append(i->first->name).append(" ");
			}
		}
		return list;
	}
	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::ChannelList()");
		return "";
	}
}

void userrec::SplitChanList(userrec* dest, const std::string &cl)
{
	std::string line;
	std::ostringstream prefix;
	std::string::size_type start, pos, length;

	try
	{
		prefix << this->nick << " " << dest->nick << " :";
		line = prefix.str();
		int namelen = strlen(ServerInstance->Config->ServerName) + 6;

		for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
		{
			length = (pos == std::string::npos) ? cl.length() : pos;

			if (line.length() + namelen + length - start > 510)
			{
				ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
				line = prefix.str();
			}

			if(pos == std::string::npos)
			{
				line.append(cl.substr(start, length - start));
				break;
			}
			else
			{
				line.append(cl.substr(start, length - start + 1));
			}
		}

		if (line.length())
		{
			ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
		}
	}

	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::SplitChanList()");
	}
}


/* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
 * then their ip will be taken as 'priority' anyway, so for example,
 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
 */
ConnectClass* userrec::GetClass()
{
	for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
	{
		if (((match(this->GetIPString(),i->GetHost().c_str(),true)) || (match(this->host,i->GetHost().c_str()))))
		{
			if (i->GetPort())
			{
				if (this->GetPort() == i->GetPort())
					return &(*i);
				else
					continue;
			}
			else
				return &(*i);
		}
	}
	return NULL;
}

void userrec::PurgeEmptyChannels()
{
	std::vector<chanrec*> to_delete;

	// firstly decrement the count on each channel
	for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
	{
		f->first->RemoveAllPrefixes(this);
		if (f->first->DelUser(this) == 0)
		{
			/* No users left in here, mark it for deletion */
			try
			{
				to_delete.push_back(f->first);
			}
			catch (...)
			{
				ServerInstance->Log(DEBUG,"Exception in userrec::PurgeEmptyChannels to_delete.push_back()");
			}
		}
	}

	for (std::vector<chanrec*>::iterator n = to_delete.begin(); n != to_delete.end(); n++)
	{
		chanrec* thischan = *n;
		chan_hash::iterator i2 = ServerInstance->chanlist->find(thischan->name);
		if (i2 != ServerInstance->chanlist->end())
		{
			FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(i2->second));
			DELETE(i2->second);
			ServerInstance->chanlist->erase(i2);
			this->chans.erase(*n);
		}
	}

	this->UnOper();
}

void userrec::ShowMOTD()
{
	if (!ServerInstance->Config->MOTD.size())
	{
		this->WriteServ("422 %s :Message of the day file is missing.",this->nick);
		return;
	}
	this->WriteServ("375 %s :%s message of the day", this->nick, ServerInstance->Config->ServerName);

	for (file_cache::iterator i = ServerInstance->Config->MOTD.begin(); i != ServerInstance->Config->MOTD.end(); i++)
		this->WriteServ("372 %s :- %s",this->nick,i->c_str());

	this->WriteServ("376 %s :End of message of the day.", this->nick);
}

void userrec::ShowRULES()
{
	if (!ServerInstance->Config->RULES.size())
	{
		this->WriteServ("NOTICE %s :Rules file is missing.",this->nick);
		return;
	}
	this->WriteServ("NOTICE %s :%s rules",this->nick,ServerInstance->Config->ServerName);

	for (file_cache::iterator i = ServerInstance->Config->RULES.begin(); i != ServerInstance->Config->RULES.end(); i++)
		this->WriteServ("NOTICE %s :%s",this->nick,i->c_str());

	this->WriteServ("NOTICE %s :End of %s rules.",this->nick,ServerInstance->Config->ServerName);
}

void userrec::HandleEvent(EventType et, int errornum)
{
	/* WARNING: May delete this user! */
	int thisfd = this->GetFd();

	try
	{
		switch (et)
		{
			case EVENT_READ:
				ServerInstance->ProcessUser(this);
			break;
			case EVENT_WRITE:
				this->FlushWriteBuf();
			break;
			case EVENT_ERROR:
				/** This should be safe, but dont DARE do anything after it -- Brain */
				this->SetWriteError(errornum ? strerror(errornum) : "EOF from client");
			break;
		}
	}
	catch (...)
	{
		ServerInstance->Log(DEBUG,"Exception in userrec::HandleEvent intercepted");
	}

	/* If the user has raised an error whilst being processed, quit them now we're safe to */
	if ((ServerInstance->SE->GetRef(thisfd) == this))
	{
		if (!WriteError.empty())
		{
			userrec::QuitUser(ServerInstance, this, GetWriteError());
		}
	}
}

void userrec::SetOperQuit(const std::string &oquit)
{
	if (operquit)
		return;

	operquit = strdup(oquit.c_str());
}

const char* userrec::GetOperQuit()
{
	return operquit ? operquit : "";
}

VisData::VisData()
{
}

VisData::~VisData()
{
}

bool VisData::VisibleTo(userrec* user)
{
	return true;
}

\ No newline at end of file
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
+ * This program is free but copyrighted software; see
+ *            the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+#include "inspircd.h"
+#include "configreader.h"
+#include "channels.h"
+#include "users.h"
+#include <stdarg.h>
+#include "socketengine.h"
+#include "wildcard.h"
+#include "xline.h"
+#include "commands/cmd_whowas.h"
+
+static unsigned long already_sent[MAX_DESCRIPTORS] = {0};
+
+/* XXX: Used for speeding up WriteCommon operations */
+unsigned long uniq_id = 0;
+
+bool InitTypes(ServerConfig* conf, const char* tag)
+{
+	if (conf->opertypes.size())
+	{
+		for (opertype_t::iterator n = conf->opertypes.begin(); n != conf->opertypes.end(); n++)
+		{
+			if (n->second)
+				delete[] n->second;
+		}
+	}
+
+	conf->opertypes.clear();
+	return true;
+}
+
+bool InitClasses(ServerConfig* conf, const char* tag)
+{
+	if (conf->operclass.size())
+	{
+		for (operclass_t::iterator n = conf->operclass.begin(); n != conf->operclass.end(); n++)
+		{
+			if (n->second)
+				delete[] n->second;
+		}
+	}
+
+	conf->operclass.clear();
+	return true;
+}
+
+bool DoType(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
+{
+	const char* TypeName = values[0].GetString();
+	const char* Classes = values[1].GetString();
+
+	conf->opertypes[TypeName] = strnewdup(Classes);
+	return true;
+}
+
+bool DoClass(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
+{
+	const char* ClassName = values[0].GetString();
+	const char* CommandList = values[1].GetString();
+
+	conf->operclass[ClassName] = strnewdup(CommandList);
+	return true;
+}
+
+bool DoneClassesAndTypes(ServerConfig* conf, const char* tag)
+{
+	return true;
+}
+
+std::string userrec::ProcessNoticeMasks(const char *sm)
+{
+	bool adding = true, oldadding = false;
+	const char *c = sm;
+	std::string output;
+
+	while (c && *c)
+	{
+		switch (*c)
+		{
+			case '+':
+				adding = true;
+			break;
+			case '-':
+				adding = false;
+			break;
+			case '*':
+				for (unsigned char d = 'A'; d <= 'z'; d++)
+				{
+					if (ServerInstance->SNO->IsEnabled(d))
+					{
+						if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
+						{
+							if ((oldadding != adding) || (!output.length()))
+								output += (adding ? '+' : '-');
+
+							this->SetNoticeMask(d, adding);
+
+							output += d;
+						}
+					}
+					oldadding = adding;
+				}
+			break;
+			default:
+				if ((*c >= 'A') && (*c <= 'z') && (ServerInstance->SNO->IsEnabled(*c)))
+				{
+					if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
+					{
+						if ((oldadding != adding) || (!output.length()))
+							output += (adding ? '+' : '-');
+
+						this->SetNoticeMask(*c, adding);
+
+						output += *c;
+					}
+				}
+				oldadding = adding;
+			break;
+		}
+
+		*c++;
+	}
+
+	return output;
+}
+
+void userrec::StartDNSLookup()
+{
+	try
+	{
+		bool cached;
+		const char* ip = this->GetIPString();
+
+		/* Special case for 4in6 (Have i mentioned i HATE 4in6?) */
+		if (!strncmp(ip, "0::ffff:", 8))
+			res_reverse = new UserResolver(this->ServerInstance, this, ip + 8, DNS_QUERY_PTR4, cached);
+		else
+			res_reverse = new UserResolver(this->ServerInstance, this, ip, this->GetProtocolFamily() == AF_INET ? DNS_QUERY_PTR4 : DNS_QUERY_PTR6, cached);
+
+		this->ServerInstance->AddResolver(res_reverse, cached);
+	}
+	catch (CoreException& e)
+	{
+		ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
+	}
+}
+
+UserResolver::UserResolver(InspIRCd* Instance, userrec* user, std::string to_resolve, QueryType qt, bool &cache) :
+	Resolver(Instance, to_resolve, qt, cache), bound_user(user)
+{
+	this->fwd = (qt == DNS_QUERY_A || qt == DNS_QUERY_AAAA);
+	this->bound_fd = user->GetFd();
+}
+
+void UserResolver::OnLookupComplete(const std::string &result, unsigned int ttl, bool cached)
+{
+	if ((!this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
+	{
+		this->bound_user->stored_host = result;
+		try
+		{
+			/* Check we didnt time out */
+			if (this->bound_user->registered != REG_ALL)
+			{
+				bool cached;
+#ifdef IPV6
+				if (this->bound_user->GetProtocolFamily() == AF_INET6)
+				{
+					/* IPV6 forward lookup (with possibility of 4in6) */
+					const char* ip = this->bound_user->GetIPString();
+					bound_user->res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, (!strncmp(ip, "0::ffff:", 8) ? DNS_QUERY_A : DNS_QUERY_AAAA), cached);
+				}
+				else
+					/* IPV4 lookup (mixed protocol mode) */
+#endif
+				/* IPV4 lookup (ipv4 only mode) */
+				bound_user->res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, DNS_QUERY_A, cached);
+				this->ServerInstance->AddResolver(bound_user->res_forward, cached);
+			}
+		}
+		catch (CoreException& e)
+		{
+			ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
+		}
+	}
+	else if ((this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
+	{
+		/* Both lookups completed */
+		std::string result2("0::ffff:");
+		result2.append(result);
+		if (this->bound_user->GetIPString() == result || this->bound_user->GetIPString() == result2)
+		{
+			std::string hostname = this->bound_user->stored_host;
+			if (hostname.length() < 65)
+			{
+				/* Check we didnt time out */
+				if ((this->bound_user->registered != REG_ALL) && (!this->bound_user->dns_done))
+				{
+					/* Hostnames starting with : are not a good thing (tm) */
+					if (*(hostname.c_str()) == ':')
+						hostname.insert(0, "0");
+
+					this->bound_user->WriteServ("NOTICE Auth :*** Found your hostname (%s)%s", hostname.c_str(), (cached ? " -- cached" : ""));
+					this->bound_user->dns_done = true;
+					strlcpy(this->bound_user->dhost, hostname.c_str(),64);
+					strlcpy(this->bound_user->host, hostname.c_str(),64);
+					/* Invalidate cache */
+					this->bound_user->InvalidateCache();
+				}
+			}
+			else
+			{
+				if (!this->bound_user->dns_done)
+				{
+					this->bound_user->WriteServ("NOTICE Auth :*** Your hostname is longer than the maximum of 64 characters, using your IP address (%s) instead.", this->bound_user->GetIPString());
+					this->bound_user->dns_done = true;
+				}
+			}
+		}
+		else
+		{
+			if (!this->bound_user->dns_done)
+			{
+				this->bound_user->WriteServ("NOTICE Auth :*** Your hostname does not match up with your IP address. Sorry, using your IP address (%s) instead.", this->bound_user->GetIPString());
+				this->bound_user->dns_done = true;
+			}
+		}
+	}
+}
+
+void UserResolver::OnError(ResolverError e, const std::string &errormessage)
+{
+	if (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user)
+	{
+		/* Since dns timeout is implemented outside of the resolver, this was a race condition that could result in this message being sent *after*
+		 * the user was fully connected. This check fixes that issue  - Special */
+		if (!this->bound_user->dns_done)
+		{
+			/* Error message here */
+			this->bound_user->WriteServ("NOTICE Auth :*** Could not resolve your hostname: %s; using your IP address (%s) instead.", errormessage.c_str(), this->bound_user->GetIPString());
+			this->bound_user->dns_done = true;
+		}
+	}
+}
+
+
+bool userrec::IsNoticeMaskSet(unsigned char sm)
+{
+	return (snomasks[sm-65]);
+}
+
+void userrec::SetNoticeMask(unsigned char sm, bool value)
+{
+	snomasks[sm-65] = value;
+}
+
+const char* userrec::FormatNoticeMasks()
+{
+	static char data[MAXBUF];
+	int offset = 0;
+
+	for (int n = 0; n < 64; n++)
+	{
+		if (snomasks[n])
+			data[offset++] = n+65;
+	}
+
+	data[offset] = 0;
+	return data;
+}
+
+
+
+bool userrec::IsModeSet(unsigned char m)
+{
+	return (modes[m-65]);
+}
+
+void userrec::SetMode(unsigned char m, bool value)
+{
+	modes[m-65] = value;
+}
+
+const char* userrec::FormatModes()
+{
+	static char data[MAXBUF];
+	int offset = 0;
+	for (int n = 0; n < 64; n++)
+	{
+		if (modes[n])
+			data[offset++] = n+65;
+	}
+	data[offset] = 0;
+	return data;
+}
+
+void userrec::DecrementModes()
+{
+	for (int n = 0; n < 64; n++)
+	{
+		if (modes[n])
+		{
+			ModeHandler* mh = ServerInstance->Modes->FindMode(n+65, MODETYPE_USER);
+			if (mh)
+				mh->ChangeCount(-1);
+		}
+	}
+}
+
+userrec::userrec(InspIRCd* Instance) : ServerInstance(Instance)
+{
+	// the PROPER way to do it, AVOID bzero at *ALL* costs
+	*password = *nick = *ident = *host = *dhost = *fullname = *awaymsg = *oper = 0;
+	server = (char*)Instance->FindServerNamePtr(Instance->Config->ServerName);
+	reset_due = ServerInstance->Time();
+	age = ServerInstance->Time(true);
+	lines_in = lastping = signon = idle_lastmsg = nping = registered = 0;
+	ChannelCount = timeout = flood = bytes_in = bytes_out = cmds_in = cmds_out = 0;
+	muted = exempt = haspassed = dns_done = false;
+	fd = -1;
+	recvq.clear();
+	sendq.clear();
+	WriteError.clear();
+	res_forward = res_reverse = NULL;
+	Visibility = NULL;
+	ip = NULL;
+	chans.clear();
+	invites.clear();
+	memset(modes,0,sizeof(modes));
+	memset(snomasks,0,sizeof(snomasks));
+	/* Invalidate cache */
+	operquit = cached_fullhost = cached_hostip = cached_makehost = cached_fullrealhost = NULL;
+}
+
+void userrec::RemoveCloneCounts()
+{
+	clonemap::iterator x = ServerInstance->local_clones.find(this->GetIPString());
+	if (x != ServerInstance->local_clones.end())
+	{
+		x->second--;
+		if (!x->second)
+		{
+			ServerInstance->local_clones.erase(x);
+		}
+	}
+	
+	clonemap::iterator y = ServerInstance->global_clones.find(this->GetIPString());
+	if (y != ServerInstance->global_clones.end())
+	{
+		y->second--;
+		if (!y->second)
+		{
+			ServerInstance->global_clones.erase(y);
+		}
+	}
+}
+
+userrec::~userrec()
+{
+	this->InvalidateCache();
+	this->DecrementModes();
+	if (operquit)
+		free(operquit);
+	if (ip)
+	{
+		this->RemoveCloneCounts();
+
+		if (this->GetProtocolFamily() == AF_INET)
+		{
+			delete (sockaddr_in*)ip;
+		}
+#ifdef SUPPORT_IP6LINKS
+		else
+		{
+			delete (sockaddr_in6*)ip;
+		}
+#endif
+	}
+}
+
+char* userrec::MakeHost()
+{
+	if (this->cached_makehost)
+		return this->cached_makehost;
+
+	char nhost[MAXBUF];
+	/* This is much faster than snprintf */
+	char* t = nhost;
+	for(char* n = ident; *n; n++)
+		*t++ = *n;
+	*t++ = '@';
+	for(char* n = host; *n; n++)
+		*t++ = *n;
+	*t = 0;
+
+	this->cached_makehost = strdup(nhost);
+
+	return this->cached_makehost;
+}
+
+char* userrec::MakeHostIP()
+{
+	if (this->cached_hostip)
+		return this->cached_hostip;
+
+	char ihost[MAXBUF];
+	/* This is much faster than snprintf */
+	char* t = ihost;
+	for(char* n = ident; *n; n++)
+		*t++ = *n;
+	*t++ = '@';
+	for(const char* n = this->GetIPString(); *n; n++)
+		*t++ = *n;
+	*t = 0;
+
+	this->cached_hostip = strdup(ihost);
+
+	return this->cached_hostip;
+}
+
+void userrec::CloseSocket()
+{
+	shutdown(this->fd,2);
+	close(this->fd);
+}
+
+char* userrec::GetFullHost()
+{
+	if (this->cached_fullhost)
+		return this->cached_fullhost;
+
+	char result[MAXBUF];
+	char* t = result;
+	for(char* n = nick; *n; n++)
+		*t++ = *n;
+	*t++ = '!';
+	for(char* n = ident; *n; n++)
+		*t++ = *n;
+	*t++ = '@';
+	for(char* n = dhost; *n; n++)
+		*t++ = *n;
+	*t = 0;
+
+	this->cached_fullhost = strdup(result);
+
+	return this->cached_fullhost;
+}
+
+char* userrec::MakeWildHost()
+{
+	static char nresult[MAXBUF];
+	char* t = nresult;
+	*t++ = '*';	*t++ = '!';
+	*t++ = '*';	*t++ = '@';
+	for(char* n = dhost; *n; n++)
+		*t++ = *n;
+	*t = 0;
+	return nresult;
+}
+
+int userrec::ReadData(void* buffer, size_t size)
+{
+	if (IS_LOCAL(this))
+	{
+#ifndef WIN32
+		return read(this->fd, buffer, size);
+#else
+		return recv(this->fd, (char*)buffer, size, 0);
+#endif
+	}
+	else
+		return 0;
+}
+
+
+char* userrec::GetFullRealHost()
+{
+	if (this->cached_fullrealhost)
+		return this->cached_fullrealhost;
+
+	char fresult[MAXBUF];
+	char* t = fresult;
+	for(char* n = nick; *n; n++)
+		*t++ = *n;
+	*t++ = '!';
+	for(char* n = ident; *n; n++)
+		*t++ = *n;
+	*t++ = '@';
+	for(char* n = host; *n; n++)
+		*t++ = *n;
+	*t = 0;
+
+	this->cached_fullrealhost = strdup(fresult);
+
+	return this->cached_fullrealhost;
+}
+
+bool userrec::IsInvited(const irc::string &channel)
+{
+	for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
+	{
+		if (channel == *i)
+		{
+			return true;
+		}
+	}
+	return false;
+}
+
+InvitedList* userrec::GetInviteList()
+{
+	return &invites;
+}
+
+void userrec::InviteTo(const irc::string &channel)
+{
+	invites.push_back(channel);
+}
+
+void userrec::RemoveInvite(const irc::string &channel)
+{
+	for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
+	{
+		if (channel == *i)
+		{
+			invites.erase(i);
+			return;
+	 	}
+	}
+}
+
+bool userrec::HasPermission(const std::string &command)
+{
+	char* mycmd;
+	char* savept;
+	char* savept2;
+
+	/*
+	 * users on remote servers can completely bypass all permissions based checks.
+	 * This prevents desyncs when one server has different type/class tags to another.
+	 * That having been said, this does open things up to the possibility of source changes
+	 * allowing remote kills, etc - but if they have access to the src, they most likely have
+	 * access to the conf - so it's an end to a means either way.
+	 */
+	if (!IS_LOCAL(this))
+		return true;
+
+	// are they even an oper at all?
+	if (IS_OPER(this))
+	{
+		opertype_t::iterator iter_opertype = ServerInstance->Config->opertypes.find(this->oper);
+		if (iter_opertype != ServerInstance->Config->opertypes.end())
+		{
+			char* Classes = strdup(iter_opertype->second);
+			char* myclass = strtok_r(Classes," ",&savept);
+			while (myclass)
+			{
+				operclass_t::iterator iter_operclass = ServerInstance->Config->operclass.find(myclass);
+				if (iter_operclass != ServerInstance->Config->operclass.end())
+				{
+					char* CommandList = strdup(iter_operclass->second);
+					mycmd = strtok_r(CommandList," ",&savept2);
+					while (mycmd)
+					{
+						if ((!strcasecmp(mycmd,command.c_str())) || (*mycmd == '*'))
+						{
+							free(Classes);
+							free(CommandList);
+							return true;
+						}
+						mycmd = strtok_r(NULL," ",&savept2);
+					}
+					free(CommandList);
+				}
+				myclass = strtok_r(NULL," ",&savept);
+			}
+			free(Classes);
+		}
+	}
+	return false;
+}
+
+/** NOTE: We cannot pass a const reference to this method.
+ * The string is changed by the workings of the method,
+ * so that if we pass const ref, we end up copying it to
+ * something we can change anyway. Makes sense to just let
+ * the compiler do that copy for us.
+ */
+bool userrec::AddBuffer(std::string a)
+{
+	try
+	{
+		std::string::size_type i = a.rfind('\r');
+
+		while (i != std::string::npos)
+		{
+			a.erase(i, 1);
+			i = a.rfind('\r');
+		}
+
+		if (a.length())
+			recvq.append(a);
+
+		if (recvq.length() > (unsigned)this->recvqmax)
+		{
+			this->SetWriteError("RecvQ exceeded");
+			ServerInstance->WriteOpers("*** User %s RecvQ of %d exceeds connect class maximum of %d",this->nick,recvq.length(),this->recvqmax);
+			return false;
+		}
+
+		return true;
+	}
+
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::AddBuffer()");
+		return false;
+	}
+}
+
+bool userrec::BufferIsReady()
+{
+	return (recvq.find('\n') != std::string::npos);
+}
+
+void userrec::ClearBuffer()
+{
+	recvq.clear();
+}
+
+std::string userrec::GetBuffer()
+{
+	try
+	{
+		if (!recvq.length())
+			return "";
+
+		/* Strip any leading \r or \n off the string.
+		 * Usually there are only one or two of these,
+		 * so its is computationally cheap to do.
+		 */
+		std::string::iterator t = recvq.begin();
+		while (t != recvq.end() && (*t == '\r' || *t == '\n'))
+		{
+			recvq.erase(t);
+			t = recvq.begin();
+		}
+
+		for (std::string::iterator x = recvq.begin(); x != recvq.end(); x++)
+		{
+			/* Find the first complete line, return it as the
+			 * result, and leave the recvq as whats left
+			 */
+			if (*x == '\n')
+			{
+				std::string ret = std::string(recvq.begin(), x);
+				recvq.erase(recvq.begin(), x + 1);
+				return ret;
+			}
+		}
+		return "";
+	}
+
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::GetBuffer()");
+		return "";
+	}
+}
+
+void userrec::AddWriteBuf(const std::string &data)
+{
+	if (*this->GetWriteError())
+		return;
+
+	if (sendq.length() + data.length() > (unsigned)this->sendqmax)
+	{
+		/*
+		 * Fix by brain - Set the error text BEFORE calling writeopers, because
+		 * if we dont it'll recursively  call here over and over again trying
+		 * to repeatedly add the text to the sendq!
+		 */
+		this->SetWriteError("SendQ exceeded");
+		ServerInstance->WriteOpers("*** User %s SendQ of %d exceeds connect class maximum of %d",this->nick,sendq.length() + data.length(),this->sendqmax);
+		return;
+	}
+
+	try
+	{
+		if (data.length() > MAXBUF - 2) /* MAXBUF has a value of 514, to account for line terminators */
+			sendq.append(data.substr(0,MAXBUF - 4)).append("\r\n"); /* MAXBUF-4 = 510 */
+		else
+			sendq.append(data);
+	}
+	catch (...)
+	{
+		this->SetWriteError("SendQ exceeded");
+		ServerInstance->WriteOpers("*** User %s SendQ got an exception",this->nick);
+	}
+}
+
+// send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
+void userrec::FlushWriteBuf()
+{
+	try
+	{
+		if ((this->fd == FD_MAGIC_NUMBER) || (*this->GetWriteError()))
+		{
+			sendq.clear();
+		}
+		if ((sendq.length()) && (this->fd != FD_MAGIC_NUMBER))
+		{
+			int old_sendq_length = sendq.length();
+#ifndef WIN32
+		int n_sent = write(this->fd, this->sendq.data(), this->sendq.length());
+#else
+		int n_sent = send(this->fd, (const char*)this->sendq.data(), this->sendq.length(), 0);
+#endif
+			if (n_sent == -1)
+			{
+				if (errno == EAGAIN)
+				{
+					/* The socket buffer is full. This isnt fatal,
+					 * try again later.
+					 */
+					this->ServerInstance->SE->WantWrite(this);
+				}
+				else
+				{
+					/* Fatal error, set write error and bail
+					 */
+					this->SetWriteError(strerror(errno));
+					return;
+				}
+			}
+			else
+			{
+				/* advance the queue */
+				if (n_sent)
+					this->sendq = this->sendq.substr(n_sent);
+				/* update the user's stats counters */
+				this->bytes_out += n_sent;
+				this->cmds_out++;
+				if (n_sent != old_sendq_length)
+					this->ServerInstance->SE->WantWrite(this);
+			}
+		}
+	}
+
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::FlushWriteBuf()");
+	}
+
+	if (this->sendq.empty())
+	{
+		FOREACH_MOD(I_OnBufferFlushed,OnBufferFlushed(this));
+	}
+}
+
+void userrec::SetWriteError(const std::string &error)
+{
+	try
+	{
+		// don't try to set the error twice, its already set take the first string.
+		if (this->WriteError.empty())
+			this->WriteError = error;
+	}
+
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::SetWriteError()");
+	}
+}
+
+const char* userrec::GetWriteError()
+{
+	return this->WriteError.c_str();
+}
+
+void userrec::Oper(const std::string &opertype)
+{
+	try
+	{
+		this->modes[UM_OPERATOR] = 1;
+		this->WriteServ("MODE %s :+o", this->nick);
+		FOREACH_MOD(I_OnOper, OnOper(this, opertype));
+		ServerInstance->Log(DEFAULT,"OPER: %s!%s@%s opered as type: %s", this->nick, this->ident, this->host, opertype.c_str());
+		strlcpy(this->oper, opertype.c_str(), NICKMAX - 1);
+		ServerInstance->all_opers.push_back(this);
+		FOREACH_MOD(I_OnPostOper,OnPostOper(this, opertype));
+	}
+
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::Oper()");
+	}
+}
+
+void userrec::UnOper()
+{
+	try
+	{
+		if (IS_OPER(this))
+		{
+			// unset their oper type (what IS_OPER checks), and remove +o
+			*this->oper = 0;
+			this->modes[UM_OPERATOR] = 0;
+
+			// remove them from the opers list.
+			for (std::vector<userrec*>::iterator a = ServerInstance->all_opers.begin(); a < ServerInstance->all_opers.end(); a++)
+			{
+				if (*a == this)
+				{
+					ServerInstance->all_opers.erase(a);
+					return;
+				}
+			}
+		}
+	}
+
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::UnOper()");
+	}
+}
+
+void userrec::QuitUser(InspIRCd* Instance, userrec *user, const std::string &quitreason, const char* operreason)
+{
+	user->muted = true;
+	Instance->GlobalCulls.AddItem(user, quitreason.c_str(), operreason);
+}
+
+/* adds or updates an entry in the whowas list */
+void userrec::AddToWhoWas()
+{
+	command_t* whowas_command = ServerInstance->Parser->GetHandler("WHOWAS");
+	if (whowas_command)
+	{
+		std::deque<classbase*> params;
+		params.push_back(this);
+		whowas_command->HandleInternal(WHOWAS_ADD, params);
+	}
+}
+
+/* add a client connection to the sockets list */
+void userrec::AddClient(InspIRCd* Instance, int socket, int port, bool iscached, int socketfamily, sockaddr* ip)
+{
+	std::string tempnick = ConvToStr(socket) + "-unknown";
+	user_hash::iterator iter = Instance->clientlist->find(tempnick);
+	char ipaddr[MAXBUF];
+#ifdef IPV6
+	if (socketfamily == AF_INET6)
+		inet_ntop(AF_INET6, &((const sockaddr_in6*)ip)->sin6_addr, ipaddr, sizeof(ipaddr));
+	else
+#endif
+	inet_ntop(AF_INET, &((const sockaddr_in*)ip)->sin_addr, ipaddr, sizeof(ipaddr));
+	userrec* New;
+	int j = 0;
+
+	Instance->unregistered_count++;
+
+	/*
+	 * fix by brain.
+	 * as these nicknames are 'RFC impossible', we can be sure nobody is going to be
+	 * using one as a registered connection. As they are per fd, we can also safely assume
+	 * that we wont have collisions. Therefore, if the nick exists in the list, its only
+	 * used by a dead socket, erase the iterator so that the new client may reclaim it.
+	 * this was probably the cause of 'server ignores me when i hammer it with reconnects'
+	 * issue in earlier alphas/betas
+	 */
+	if (iter != Instance->clientlist->end())
+	{
+		userrec* goner = iter->second;
+		DELETE(goner);
+		Instance->clientlist->erase(iter);
+	}
+
+	New = new userrec(Instance);
+	(*(Instance->clientlist))[tempnick] = New;
+	New->fd = socket;
+	strlcpy(New->nick,tempnick.c_str(),NICKMAX-1);
+
+	New->server = Instance->FindServerNamePtr(Instance->Config->ServerName);
+	/* We don't need range checking here, we KNOW 'unknown\0' will fit into the ident field. */
+	strcpy(New->ident, "unknown");
+
+	New->registered = REG_NONE;
+	New->signon = Instance->Time() + Instance->Config->dns_timeout;
+	New->lastping = 1;
+
+	New->SetSockAddr(socketfamily, ipaddr, port);
+
+	/* Smarter than your average bear^H^H^H^Hset of strlcpys. */
+	for (const char* temp = New->GetIPString(); *temp && j < 64; temp++, j++)
+		New->dhost[j] = New->host[j] = *temp;
+	New->dhost[j] = New->host[j] = 0;
+
+	Instance->AddLocalClone(New);
+	Instance->AddGlobalClone(New);
+
+	/*
+	 * First class check. We do this again in FullConnect after DNS is done, and NICK/USER is recieved.
+	 * See my note down there for why this is required. DO NOT REMOVE. :) -- w00t
+	 */
+	ConnectClass* i = New->GetClass();
+
+	if (!i)
+	{
+		userrec::QuitUser(Instance, New, "Access denied by configuration");
+		return;
+	}
+
+	New->CheckClass();
+
+	New->pingmax = i->GetPingTime();
+	New->nping = Instance->Time() + i->GetPingTime() + Instance->Config->dns_timeout;
+	New->timeout = Instance->Time() + i->GetRegTimeout();
+	New->flood = i->GetFlood();
+	New->threshold = i->GetThreshold();
+	New->sendqmax = i->GetSendqMax();
+	New->recvqmax = i->GetRecvqMax();
+
+	Instance->local_users.push_back(New);
+
+	if ((Instance->local_users.size() > Instance->Config->SoftLimit) || (Instance->local_users.size() >= MAXCLIENTS))
+	{
+		Instance->WriteOpers("*** Warning: softlimit value has been reached: %d clients", Instance->Config->SoftLimit);
+		userrec::QuitUser(Instance, New,"No more connections allowed");
+		return;
+	}
+
+	/*
+	 * XXX -
+	 * this is done as a safety check to keep the file descriptors within range of fd_ref_table.
+	 * its a pretty big but for the moment valid assumption:
+	 * file descriptors are handed out starting at 0, and are recycled as theyre freed.
+	 * therefore if there is ever an fd over 65535, 65536 clients must be connected to the
+	 * irc server at once (or the irc server otherwise initiating this many connections, files etc)
+	 * which for the time being is a physical impossibility (even the largest networks dont have more
+	 * than about 10,000 users on ONE server!)
+	 */
+#ifndef WINDOWS
+	if ((unsigned int)socket >= MAX_DESCRIPTORS)
+	{
+		userrec::QuitUser(Instance, New, "Server is full");
+		return;
+	}
+#endif
+
+	New->exempt = (Instance->XLines->matches_exception(New) != NULL);
+	if (!New->exempt)
+	{
+		ZLine* r = Instance->XLines->matches_zline(ipaddr);
+		if (r)
+		{
+			char reason[MAXBUF];
+			if (*Instance->Config->MoronBanner)
+				New->WriteServ("NOTICE %s :*** %s", New->nick, Instance->Config->MoronBanner);
+			snprintf(reason,MAXBUF,"Z-Lined: %s",r->reason);
+			userrec::QuitUser(Instance, New, reason);
+			return;
+		}
+	}
+
+	if (socket > -1)
+	{
+		if (!Instance->SE->AddFd(New))
+		{
+			userrec::QuitUser(Instance, New, "Internal error handling connection");
+			return;
+		}
+	}
+
+	/* NOTE: even if dns lookups are *off*, we still need to display this.
+	 * BOPM and other stuff requires it.
+	 */
+	New->WriteServ("NOTICE Auth :*** Looking up your hostname...");
+}
+
+unsigned long userrec::GlobalCloneCount()
+{
+	clonemap::iterator x = ServerInstance->global_clones.find(this->GetIPString());
+	if (x != ServerInstance->global_clones.end())
+		return x->second;
+	else
+		return 0;
+}
+
+unsigned long userrec::LocalCloneCount()
+{
+	clonemap::iterator x = ServerInstance->local_clones.find(this->GetIPString());
+	if (x != ServerInstance->local_clones.end())
+		return x->second;
+	else
+		return 0;
+}
+
+/*
+ * Check class restrictions
+ */
+void userrec::CheckClass()
+{
+	ConnectClass* a = this->GetClass();
+
+	if ((!a) || (a->GetType() == CC_DENY))
+	{
+		userrec::QuitUser(ServerInstance, this, "Unauthorised connection");
+		return;
+	}
+	else if ((a->GetMaxLocal()) && (this->LocalCloneCount() > a->GetMaxLocal()))
+	{
+		userrec::QuitUser(ServerInstance, this, "No more connections allowed from your host via this connect class (local)");
+		ServerInstance->WriteOpers("*** WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
+		return;
+	}
+	else if ((a->GetMaxGlobal()) && (this->GlobalCloneCount() > a->GetMaxGlobal()))
+	{
+		userrec::QuitUser(ServerInstance, this, "No more connections allowed from your host via this connect class (global)");
+		ServerInstance->WriteOpers("*** WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
+		return;
+	}
+}
+
+void userrec::FullConnect()
+{
+	ServerInstance->stats->statsConnects++;
+	this->idle_lastmsg = ServerInstance->Time();
+
+	/*
+	 * You may be thinking "wtf, we checked this in userrec::AddClient!" - and yes, we did, BUT.
+	 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
+	 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
+	 * Don't remove this! -- w00t
+	 */
+	this->CheckClass();
+	
+	/* Check the password, if one is required by the user's connect class.
+	 * This CANNOT be in CheckClass(), because that is called prior to PASS as well!
+	 */
+	if ((!this->GetClass()->GetPass().empty()) && (!this->haspassed))
+	{
+		userrec::QuitUser(ServerInstance, this, "Invalid password");
+		return;
+	}
+	
+	if (!this->exempt)
+	{
+		GLine* r = ServerInstance->XLines->matches_gline(this);
+
+		if (r)
+		{
+			this->muted = true;
+			char reason[MAXBUF];
+			if (*ServerInstance->Config->MoronBanner)
+				this->WriteServ("NOTICE %s :*** %s", this->nick, ServerInstance->Config->MoronBanner);
+			snprintf(reason,MAXBUF,"G-Lined: %s",r->reason);
+			ServerInstance->GlobalCulls.AddItem(this, reason);
+			return;
+		}
+
+		KLine* n = ServerInstance->XLines->matches_kline(this);
+
+		if (n)
+		{
+			this->muted = true;
+			char reason[MAXBUF];
+			if (*ServerInstance->Config->MoronBanner)
+				this->WriteServ("NOTICE %s :*** %s", this, ServerInstance->Config->MoronBanner);
+			snprintf(reason,MAXBUF,"K-Lined: %s",n->reason);
+			ServerInstance->GlobalCulls.AddItem(this, reason);
+			return;
+		}
+	}
+
+	this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network);
+	this->WriteServ("001 %s :Welcome to the %s IRC Network %s!%s@%s",this->nick, ServerInstance->Config->Network, this->nick, this->ident, this->host);
+	this->WriteServ("002 %s :Your host is %s, running version %s",this->nick,ServerInstance->Config->ServerName,VERSION);
+	this->WriteServ("003 %s :This server was created %s %s", this->nick, __TIME__, __DATE__);
+	this->WriteServ("004 %s %s %s %s %s %s", this->nick, ServerInstance->Config->ServerName, VERSION, ServerInstance->Modes->UserModeList().c_str(), ServerInstance->Modes->ChannelModeList().c_str(), ServerInstance->Modes->ParaModeList().c_str());
+
+	ServerInstance->Config->Send005(this);
+
+	this->ShowMOTD();
+
+	/* Now registered */
+	if (ServerInstance->unregistered_count)
+		ServerInstance->unregistered_count--;
+
+	/* Trigger LUSERS output, give modules a chance too */
+	int MOD_RESULT = 0;
+	FOREACH_RESULT(I_OnPreCommand, OnPreCommand("LUSERS", NULL, 0, this, true, "LUSERS"));
+	if (!MOD_RESULT)
+		ServerInstance->CallCommandHandler("LUSERS", NULL, 0, this);
+
+	/*
+	 * fix 3 by brain, move registered = 7 below these so that spurious modes and host
+	 * changes dont go out onto the network and produce 'fake direction'.
+	 */
+	FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
+
+	this->registered = REG_ALL;
+
+	FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
+
+	ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s] [%s]", this->GetPort(), this->nick, this->ident, this->host, this->GetIPString(), this->fullname);
+}
+
+/** userrec::UpdateNick()
+ * re-allocates a nick in the user_hash after they change nicknames,
+ * returns a pointer to the new user as it may have moved
+ */
+userrec* userrec::UpdateNickHash(const char* New)
+{
+	try
+	{
+		//user_hash::iterator newnick;
+		user_hash::iterator oldnick = ServerInstance->clientlist->find(this->nick);
+
+		if (!strcasecmp(this->nick,New))
+			return oldnick->second;
+
+		if (oldnick == ServerInstance->clientlist->end())
+			return NULL; /* doesnt exist */
+
+		userrec* olduser = oldnick->second;
+		(*(ServerInstance->clientlist))[New] = olduser;
+		ServerInstance->clientlist->erase(oldnick);
+		return olduser;
+	}
+
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::UpdateNickHash()");
+		return NULL;
+	}
+}
+
+void userrec::InvalidateCache()
+{
+	/* Invalidate cache */
+	if (cached_fullhost)
+		free(cached_fullhost);
+	if (cached_hostip)
+		free(cached_hostip);
+	if (cached_makehost)
+		free(cached_makehost);
+	if (cached_fullrealhost)
+		free(cached_fullrealhost);
+	cached_fullhost = cached_hostip = cached_makehost = cached_fullrealhost = NULL;
+}
+
+bool userrec::ForceNickChange(const char* newnick)
+{
+	try
+	{
+		int MOD_RESULT = 0;
+
+		this->InvalidateCache();
+
+		FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(this, newnick));
+
+		if (MOD_RESULT)
+		{
+			ServerInstance->stats->statsCollisions++;
+			return false;
+		}
+
+		if (ServerInstance->XLines->matches_qline(newnick))
+		{
+			ServerInstance->stats->statsCollisions++;
+			return false;
+		}
+
+		if (this->registered == REG_ALL)
+		{
+			return (ServerInstance->Parser->CallHandler("NICK", &newnick, 1, this) == CMD_SUCCESS);
+		}
+		return false;
+	}
+
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::ForceNickChange()");
+		return false;
+	}
+}
+
+void userrec::SetSockAddr(int protocol_family, const char* ip, int port)
+{
+	switch (protocol_family)
+	{
+#ifdef SUPPORT_IP6LINKS
+		case AF_INET6:
+		{
+			sockaddr_in6* sin = new sockaddr_in6;
+			sin->sin6_family = AF_INET6;
+			sin->sin6_port = port;
+			inet_pton(AF_INET6, ip, &sin->sin6_addr);
+			this->ip = (sockaddr*)sin;
+		}
+		break;
+#endif
+		case AF_INET:
+		{
+			sockaddr_in* sin = new sockaddr_in;
+			sin->sin_family = AF_INET;
+			sin->sin_port = port;
+			inet_pton(AF_INET, ip, &sin->sin_addr);
+			this->ip = (sockaddr*)sin;
+		}
+		break;
+		default:
+			ServerInstance->Log(DEBUG,"Ut oh, I dont know protocol %d to be set on '%s'!", protocol_family, this->nick);
+		break;
+	}
+}
+
+int userrec::GetPort()
+{
+	if (this->ip == NULL)
+		return 0;
+
+	switch (this->GetProtocolFamily())
+	{
+#ifdef SUPPORT_IP6LINKS
+		case AF_INET6:
+		{
+			sockaddr_in6* sin = (sockaddr_in6*)this->ip;
+			return sin->sin6_port;
+		}
+		break;
+#endif
+		case AF_INET:
+		{
+			sockaddr_in* sin = (sockaddr_in*)this->ip;
+			return sin->sin_port;
+		}
+		break;
+		default:
+		break;
+	}
+	return 0;
+}
+
+int userrec::GetProtocolFamily()
+{
+	if (this->ip == NULL)
+		return 0;
+
+	sockaddr_in* sin = (sockaddr_in*)this->ip;
+	return sin->sin_family;
+}
+
+const char* userrec::GetIPString()
+{
+	static char buf[1024];
+
+	if (this->ip == NULL)
+		return "";
+
+	switch (this->GetProtocolFamily())
+	{
+#ifdef SUPPORT_IP6LINKS
+		case AF_INET6:
+		{
+			static char temp[1024];
+
+			sockaddr_in6* sin = (sockaddr_in6*)this->ip;
+			inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
+			/* IP addresses starting with a : on irc are a Bad Thing (tm) */
+			if (*buf == ':')
+			{
+				strlcpy(&temp[1], buf, sizeof(temp) - 1);
+				*temp = '0';
+				return temp;
+			}
+			return buf;
+		}
+		break;
+#endif
+		case AF_INET:
+		{
+			sockaddr_in* sin = (sockaddr_in*)this->ip;
+			inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
+			return buf;
+		}
+		break;
+		default:
+		break;
+	}
+	return "";
+}
+
+const char* userrec::GetIPString(char* buf)
+{
+	if (this->ip == NULL)
+	{
+		*buf = 0;
+		return buf;
+	}
+
+	switch (this->GetProtocolFamily())
+	{
+#ifdef SUPPORT_IP6LINKS
+		case AF_INET6:
+		{
+			static char temp[1024];
+
+			sockaddr_in6* sin = (sockaddr_in6*)this->ip;
+			inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
+			/* IP addresses starting with a : on irc are a Bad Thing (tm) */
+			if (*buf == ':')
+			{
+				strlcpy(&temp[1], buf, sizeof(temp) - 1);
+				*temp = '0';
+				strlcpy(buf, temp, sizeof(temp));
+			}
+			return buf;
+		}
+		break;
+#endif
+		case AF_INET:
+		{
+			sockaddr_in* sin = (sockaddr_in*)this->ip;
+			inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
+			return buf;
+		}
+		break;
+
+		default:
+		break;
+	}
+	return "";
+}
+
+/** NOTE: We cannot pass a const reference to this method.
+ * The string is changed by the workings of the method,
+ * so that if we pass const ref, we end up copying it to
+ * something we can change anyway. Makes sense to just let
+ * the compiler do that copy for us.
+ */
+void userrec::Write(std::string text)
+{
+#ifdef WINDOWS
+	if ((this->fd < 0) || (this->m_internalFd > MAX_DESCRIPTORS))
+#else
+	if ((this->fd < 0) || (this->fd > MAX_DESCRIPTORS))
+#endif
+		return;
+
+	try
+	{
+		/* ServerInstance->Log(DEBUG,"C[%d] <- %s", this->GetFd(), text.c_str());
+		 * WARNING: The above debug line is VERY loud, do NOT
+		 * enable it till we have a good way of filtering it
+		 * out of the logs (e.g. 1.2 would be good).
+		 */
+		text.append("\r\n");
+	}
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::Write() std::string::append");
+		return;
+	}
+
+	if (ServerInstance->Config->GetIOHook(this->GetPort()))
+	{
+		try
+		{
+			/* XXX: The lack of buffering here is NOT a bug, modules implementing this interface have to
+			 * implement their own buffering mechanisms
+			 */
+			ServerInstance->Config->GetIOHook(this->GetPort())->OnRawSocketWrite(this->fd, text.data(), text.length());
+		}
+		catch (CoreException& modexcept)
+		{
+			ServerInstance->Log(DEBUG, "%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
+		}
+	}
+	else
+	{
+		this->AddWriteBuf(text);
+	}
+	ServerInstance->stats->statsSent += text.length();
+	this->ServerInstance->SE->WantWrite(this);
+}
+
+/** Write()
+ */
+void userrec::Write(const char *text, ...)
+{
+	va_list argsPtr;
+	char textbuffer[MAXBUF];
+
+	va_start(argsPtr, text);
+	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
+	va_end(argsPtr);
+
+	this->Write(std::string(textbuffer));
+}
+
+void userrec::WriteServ(const std::string& text)
+{
+	char textbuffer[MAXBUF];
+
+	snprintf(textbuffer,MAXBUF,":%s %s",ServerInstance->Config->ServerName,text.c_str());
+	this->Write(std::string(textbuffer));
+}
+
+/** WriteServ()
+ *  Same as Write(), except `text' is prefixed with `:server.name '.
+ */
+void userrec::WriteServ(const char* text, ...)
+{
+	va_list argsPtr;
+	char textbuffer[MAXBUF];
+
+	va_start(argsPtr, text);
+	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
+	va_end(argsPtr);
+
+	this->WriteServ(std::string(textbuffer));
+}
+
+
+void userrec::WriteFrom(userrec *user, const std::string &text)
+{
+	char tb[MAXBUF];
+
+	snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str());
+
+	this->Write(std::string(tb));
+}
+
+
+/* write text from an originating user to originating user */
+
+void userrec::WriteFrom(userrec *user, const char* text, ...)
+{
+	va_list argsPtr;
+	char textbuffer[MAXBUF];
+
+	va_start(argsPtr, text);
+	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
+	va_end(argsPtr);
+
+	this->WriteFrom(user, std::string(textbuffer));
+}
+
+
+/* write text to an destination user from a source user (e.g. user privmsg) */
+
+void userrec::WriteTo(userrec *dest, const char *data, ...)
+{
+	char textbuffer[MAXBUF];
+	va_list argsPtr;
+
+	va_start(argsPtr, data);
+	vsnprintf(textbuffer, MAXBUF, data, argsPtr);
+	va_end(argsPtr);
+
+	this->WriteTo(dest, std::string(textbuffer));
+}
+
+void userrec::WriteTo(userrec *dest, const std::string &data)
+{
+	dest->WriteFrom(this, data);
+}
+
+
+void userrec::WriteCommon(const char* text, ...)
+{
+	char textbuffer[MAXBUF];
+	va_list argsPtr;
+
+	if (this->registered != REG_ALL)
+		return;
+
+	va_start(argsPtr, text);
+	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
+	va_end(argsPtr);
+
+	this->WriteCommon(std::string(textbuffer));
+}
+
+void userrec::WriteCommon(const std::string &text)
+{
+	try
+	{
+		bool sent_to_at_least_one = false;
+		char tb[MAXBUF];
+
+		if (this->registered != REG_ALL)
+			return;
+
+		uniq_id++;
+
+		/* We dont want to be doing this n times, just once */
+		snprintf(tb,MAXBUF,":%s %s",this->GetFullHost(),text.c_str());
+		std::string out = tb;
+
+		for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
+		{
+			CUList* ulist = v->first->GetUsers();
+			for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
+			{
+				if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
+				{
+					already_sent[i->first->fd] = uniq_id;
+					i->first->Write(out);
+					sent_to_at_least_one = true;
+				}
+			}
+		}
+
+		/*
+		 * if the user was not in any channels, no users will receive the text. Make sure the user
+		 * receives their OWN message for WriteCommon
+		 */
+		if (!sent_to_at_least_one)
+		{
+			this->Write(std::string(tb));
+		}
+	}
+
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::WriteCommon()");
+	}
+}
+
+
+/* write a formatted string to all users who share at least one common
+ * channel, NOT including the source user e.g. for use in QUIT
+ */
+
+void userrec::WriteCommonExcept(const char* text, ...)
+{
+	char textbuffer[MAXBUF];
+	va_list argsPtr;
+
+	va_start(argsPtr, text);
+	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
+	va_end(argsPtr);
+
+	this->WriteCommonExcept(std::string(textbuffer));
+}
+
+void userrec::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
+{
+	char tb1[MAXBUF];
+	char tb2[MAXBUF];
+
+	if (this->registered != REG_ALL)
+		return;
+
+	uniq_id++;
+	snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost(),normal_text.c_str());
+	snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost(),oper_text.c_str());
+	std::string out1 = tb1;
+	std::string out2 = tb2;
+
+	for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
+	{
+		CUList *ulist = v->first->GetUsers();
+		for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
+		{
+			if (this != i->first)
+			{
+				if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
+				{
+					already_sent[i->first->fd] = uniq_id;
+					i->first->Write(IS_OPER(i->first) ? out2 : out1);
+				}
+			}
+		}
+	}
+}
+
+void userrec::WriteCommonExcept(const std::string &text)
+{
+	char tb1[MAXBUF];
+	std::string out1;
+
+	if (this->registered != REG_ALL)
+		return;
+
+	uniq_id++;
+	snprintf(tb1,MAXBUF,":%s %s",this->GetFullHost(),text.c_str());
+	out1 = tb1;
+
+	for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
+	{
+		CUList *ulist = v->first->GetUsers();
+		for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
+		{
+			if (this != i->first)
+			{
+				if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
+				{
+					already_sent[i->first->fd] = uniq_id;
+					i->first->Write(out1);
+				}
+			}
+		}
+	}
+
+}
+
+void userrec::WriteWallOps(const std::string &text)
+{
+	if (!IS_OPER(this) && IS_LOCAL(this))
+		return;
+
+	std::string wallop("WALLOPS :");
+	wallop.append(text);
+
+	for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
+	{
+		userrec* t = *i;
+		if (t->modes[UM_WALLOPS])
+			this->WriteTo(t,wallop);
+	}
+}
+
+void userrec::WriteWallOps(const char* text, ...)
+{
+	char textbuffer[MAXBUF];
+	va_list argsPtr;
+
+	va_start(argsPtr, text);
+	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
+	va_end(argsPtr);
+
+	this->WriteWallOps(std::string(textbuffer));
+}
+
+/* return 0 or 1 depending if users u and u2 share one or more common channels
+ * (used by QUIT, NICK etc which arent channel specific notices)
+ *
+ * The old algorithm in 1.0 for this was relatively inefficient, iterating over
+ * the first users channels then the second users channels within the outer loop,
+ * therefore it was a maximum of x*y iterations (upon returning 0 and checking
+ * all possible iterations). However this new function instead checks against the
+ * channel's userlist in the inner loop which is a std::map<userrec*,userrec*>
+ * and saves us time as we already know what pointer value we are after.
+ * Don't quote me on the maths as i am not a mathematician or computer scientist,
+ * but i believe this algorithm is now x+(log y) maximum iterations instead.
+ */
+bool userrec::SharesChannelWith(userrec *other)
+{
+	if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
+		return false;
+
+	/* Outer loop */
+	for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
+	{
+		/* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
+		 * by replacing it with a map::find which *should* be more efficient
+		 */
+		if (i->first->HasUser(other))
+			return true;
+	}
+	return false;
+}
+
+bool userrec::ChangeName(const char* gecos)
+{
+	if (!strcmp(gecos, this->fullname))
+		return true;
+
+	if (IS_LOCAL(this))
+	{
+		int MOD_RESULT = 0;
+		FOREACH_RESULT(I_OnChangeLocalUserGECOS,OnChangeLocalUserGECOS(this,gecos));
+		if (MOD_RESULT)
+			return false;
+		FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
+	}
+	strlcpy(this->fullname,gecos,MAXGECOS+1);
+
+	return true;
+}
+
+bool userrec::ChangeDisplayedHost(const char* host)
+{
+	if (!strcmp(host, this->dhost))
+		return true;
+
+	if (IS_LOCAL(this))
+	{
+		int MOD_RESULT = 0;
+		FOREACH_RESULT(I_OnChangeLocalUserHost,OnChangeLocalUserHost(this,host));
+		if (MOD_RESULT)
+			return false;
+		FOREACH_MOD(I_OnChangeHost,OnChangeHost(this,host));
+	}
+	if (this->ServerInstance->Config->CycleHosts)
+		this->WriteCommonExcept("QUIT :Changing hosts");
+
+	/* Fix by Om: userrec::dhost is 65 long, this was truncating some long hosts */
+	strlcpy(this->dhost,host,64);
+
+	this->InvalidateCache();
+
+	if (this->ServerInstance->Config->CycleHosts)
+	{
+		for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
+		{
+			i->first->WriteAllExceptSender(this, false, 0, "JOIN %s", i->first->name);
+			std::string n = this->ServerInstance->Modes->ModeString(this, i->first);
+			if (n.length() > 0)
+				i->first->WriteAllExceptSender(this, true, 0, "MODE %s +%s", i->first->name, n.c_str());
+		}
+	}
+
+	if (IS_LOCAL(this))
+		this->WriteServ("396 %s %s :is now your displayed host",this->nick,this->dhost);
+
+	return true;
+}
+
+bool userrec::ChangeIdent(const char* newident)
+{
+	if (!strcmp(newident, this->ident))
+		return true;
+
+	if (this->ServerInstance->Config->CycleHosts)
+		this->WriteCommonExcept("%s","QUIT :Changing ident");
+
+	strlcpy(this->ident, newident, IDENTMAX+2);
+
+	this->InvalidateCache();
+
+	if (this->ServerInstance->Config->CycleHosts)
+	{
+		for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
+		{
+			i->first->WriteAllExceptSender(this, false, 0, "JOIN %s", i->first->name);
+			std::string n = this->ServerInstance->Modes->ModeString(this, i->first);
+			if (n.length() > 0)
+				i->first->WriteAllExceptSender(this, true, 0, "MODE %s +%s", i->first->name, n.c_str());
+		}
+	}
+
+	return true;
+}
+
+void userrec::SendAll(const char* command, char* text, ...)
+{
+	char textbuffer[MAXBUF];
+	char formatbuffer[MAXBUF];
+	va_list argsPtr;
+
+	va_start(argsPtr, text);
+	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
+	va_end(argsPtr);
+
+	snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost(), command, textbuffer);
+	std::string fmt = formatbuffer;
+
+	for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
+	{
+		(*i)->Write(fmt);
+	}
+}
+
+
+std::string userrec::ChannelList(userrec* source)
+{
+	try
+	{
+		std::string list;
+		for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
+		{
+			/* If the target is the same as the sender, let them see all their channels.
+			 * If the channel is NOT private/secret OR the user shares a common channel
+			 * If the user is an oper, and the <options:operspywhois> option is set.
+			 */
+			if ((source == this) || (IS_OPER(source) && ServerInstance->Config->OperSpyWhois) || (((!i->first->modes[CM_PRIVATE]) && (!i->first->modes[CM_SECRET])) || (i->first->HasUser(source))))
+			{
+				list.append(i->first->GetPrefixChar(this)).append(i->first->name).append(" ");
+			}
+		}
+		return list;
+	}
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::ChannelList()");
+		return "";
+	}
+}
+
+void userrec::SplitChanList(userrec* dest, const std::string &cl)
+{
+	std::string line;
+	std::ostringstream prefix;
+	std::string::size_type start, pos, length;
+
+	try
+	{
+		prefix << this->nick << " " << dest->nick << " :";
+		line = prefix.str();
+		int namelen = strlen(ServerInstance->Config->ServerName) + 6;
+
+		for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
+		{
+			length = (pos == std::string::npos) ? cl.length() : pos;
+
+			if (line.length() + namelen + length - start > 510)
+			{
+				ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
+				line = prefix.str();
+			}
+
+			if(pos == std::string::npos)
+			{
+				line.append(cl.substr(start, length - start));
+				break;
+			}
+			else
+			{
+				line.append(cl.substr(start, length - start + 1));
+			}
+		}
+
+		if (line.length())
+		{
+			ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
+		}
+	}
+
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::SplitChanList()");
+	}
+}
+
+
+/* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
+ * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
+ * then their ip will be taken as 'priority' anyway, so for example,
+ * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
+ */
+ConnectClass* userrec::GetClass()
+{
+	for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
+	{
+		if (((match(this->GetIPString(),i->GetHost().c_str(),true)) || (match(this->host,i->GetHost().c_str()))))
+		{
+			if (i->GetPort())
+			{
+				if (this->GetPort() == i->GetPort())
+					return &(*i);
+				else
+					continue;
+			}
+			else
+				return &(*i);
+		}
+	}
+	return NULL;
+}
+
+void userrec::PurgeEmptyChannels()
+{
+	std::vector<chanrec*> to_delete;
+
+	// firstly decrement the count on each channel
+	for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
+	{
+		f->first->RemoveAllPrefixes(this);
+		if (f->first->DelUser(this) == 0)
+		{
+			/* No users left in here, mark it for deletion */
+			try
+			{
+				to_delete.push_back(f->first);
+			}
+			catch (...)
+			{
+				ServerInstance->Log(DEBUG,"Exception in userrec::PurgeEmptyChannels to_delete.push_back()");
+			}
+		}
+	}
+
+	for (std::vector<chanrec*>::iterator n = to_delete.begin(); n != to_delete.end(); n++)
+	{
+		chanrec* thischan = *n;
+		chan_hash::iterator i2 = ServerInstance->chanlist->find(thischan->name);
+		if (i2 != ServerInstance->chanlist->end())
+		{
+			FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(i2->second));
+			DELETE(i2->second);
+			ServerInstance->chanlist->erase(i2);
+			this->chans.erase(*n);
+		}
+	}
+
+	this->UnOper();
+}
+
+void userrec::ShowMOTD()
+{
+	if (!ServerInstance->Config->MOTD.size())
+	{
+		this->WriteServ("422 %s :Message of the day file is missing.",this->nick);
+		return;
+	}
+	this->WriteServ("375 %s :%s message of the day", this->nick, ServerInstance->Config->ServerName);
+
+	for (file_cache::iterator i = ServerInstance->Config->MOTD.begin(); i != ServerInstance->Config->MOTD.end(); i++)
+		this->WriteServ("372 %s :- %s",this->nick,i->c_str());
+
+	this->WriteServ("376 %s :End of message of the day.", this->nick);
+}
+
+void userrec::ShowRULES()
+{
+	if (!ServerInstance->Config->RULES.size())
+	{
+		this->WriteServ("NOTICE %s :Rules file is missing.",this->nick);
+		return;
+	}
+	this->WriteServ("NOTICE %s :%s rules",this->nick,ServerInstance->Config->ServerName);
+
+	for (file_cache::iterator i = ServerInstance->Config->RULES.begin(); i != ServerInstance->Config->RULES.end(); i++)
+		this->WriteServ("NOTICE %s :%s",this->nick,i->c_str());
+
+	this->WriteServ("NOTICE %s :End of %s rules.",this->nick,ServerInstance->Config->ServerName);
+}
+
+void userrec::HandleEvent(EventType et, int errornum)
+{
+	/* WARNING: May delete this user! */
+	int thisfd = this->GetFd();
+
+	try
+	{
+		switch (et)
+		{
+			case EVENT_READ:
+				ServerInstance->ProcessUser(this);
+			break;
+			case EVENT_WRITE:
+				this->FlushWriteBuf();
+			break;
+			case EVENT_ERROR:
+				/** This should be safe, but dont DARE do anything after it -- Brain */
+				this->SetWriteError(errornum ? strerror(errornum) : "EOF from client");
+			break;
+		}
+	}
+	catch (...)
+	{
+		ServerInstance->Log(DEBUG,"Exception in userrec::HandleEvent intercepted");
+	}
+
+	/* If the user has raised an error whilst being processed, quit them now we're safe to */
+	if ((ServerInstance->SE->GetRef(thisfd) == this))
+	{
+		if (!WriteError.empty())
+		{
+			userrec::QuitUser(ServerInstance, this, GetWriteError());
+		}
+	}
+}
+
+void userrec::SetOperQuit(const std::string &oquit)
+{
+	if (operquit)
+		return;
+
+	operquit = strdup(oquit.c_str());
+}
+
+const char* userrec::GetOperQuit()
+{
+	return operquit ? operquit : "";
+}
+
+VisData::VisData()
+{
+}
+
+VisData::~VisData()
+{
+}
+
+bool VisData::VisibleTo(userrec* user)
+{
+	return true;
+}
+