fteqw/engine/server/sv_main.c

/*
Copyright (C) 1996-1997 Id Software, Inc.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/
#include "quakedef.h"
#include "netinc.h"
#include <sys/types.h>
#ifndef CLIENTONLY
#define Q2EDICT_NUM(i) (q2edict_t*)((char *)ge->edicts+i*ge->edict_size)

void SV_LegacySavegame_f(void);
void SV_Savegame_f (void);
void SV_Loadgame_f (void);
#define INVIS_CHAR1 12
#define INVIS_CHAR2 (char)138
#define INVIS_CHAR3 (char)160

#ifdef SERVERONLY
double		host_frametime;
double		realtime;				// without any filtering or bounding
qboolean	host_initialized;		// true if into command execution (compatability)
quakeparms_t host_parms;
int			host_hunklevel;
#endif

// callbacks
void SV_Tcpport_Callback(struct cvar_s *var, char *oldvalue);
void SV_Tcpport6_Callback(struct cvar_s *var, char *oldvalue);
void SV_Port_Callback(struct cvar_s *var, char *oldvalue);
void SV_PortIPv6_Callback(struct cvar_s *var, char *oldvalue);
void SV_PortIPX_Callback(struct cvar_s *var, char *oldvalue);

client_t	*host_client;			// current client

// bound the size of the physics time tic
#ifdef SERVERONLY
cvar_t	sv_mintic = CVARD("sv_mintic","0.013", "The minimum interval between running physics frames.");
#else
cvar_t	sv_mintic = CVARD("sv_mintic","0", "The minimum interval between running physics frames.");	//client builds can think as often as they want.
#endif
cvar_t	sv_maxtic = CVARD("sv_maxtic","0.1", "The maximum interval between running physics frames. If the value is too low, multiple physics interations might be run at a time (based upon sv_limittics). Set identical to sv_mintic for fixed-interval ticks, which may be required if ODE is used.");//never run a tick slower than this
cvar_t	sv_limittics = CVARD("sv_limittics","3", "The maximum number of ticks that may be run within a frame, to allow the server to catch up if it stalled or if sv_maxtic is too low.");//

cvar_t	sv_nailhack = CVARD("sv_nailhack","0", "If set to 1, disables the nail entity networking optimisation. This hack was popularised by qizmo which recommends it for better compression. Also allows clients to interplate nail positions and add trails.");
cvar_t	sv_nopvs	= CVARD("sv_nopvs", "0", "Set to 1 to ignore pvs on the server. This can make wallhacks more dangerous, so should only be used for debugging.");
cvar_t	fraglog_public = CVARD("fraglog_public", "1", "Enables support for connectionless fraglog requests");
cvar_t	fraglog_details = CVARD("fraglog_details", "1", "Bitmask\n1: killer+killee names.\n2: killer+killee teams\n4:timestamp.\n8:killer weapon\n16:killer+killee guid.\nFor compatibility, use 1(vanilla) or 7(mvdsv).");

cvar_t	timeout = SCVAR("timeout","65");		// seconds without any message
cvar_t	zombietime = SCVAR("zombietime", "2");	// seconds to sink messages
											// after disconnect
#ifdef SERVERONLY
cvar_t	developer = SCVAR("developer","0");		// show extra messages

cvar_t	rcon_password = SCVARF("rcon_password", "", CVAR_NOUNSAFEEXPAND);	// password for remote server commands
cvar_t	password = SCVARF("password", "", CVAR_NOUNSAFEEXPAND);	// password for entering the game
#else
extern cvar_t	developer;
extern cvar_t	rcon_password;
extern cvar_t	password;
#endif
cvar_t	spectator_password = CVARF("spectator_password", "", CVAR_NOUNSAFEEXPAND);	// password for entering as a sepctator

cvar_t	allow_download = CVAR("allow_download", "1");
cvar_t	allow_download_skins = CVAR("allow_download_skins", "1");
cvar_t	allow_download_models = CVAR("allow_download_models", "1");
cvar_t	allow_download_sounds = CVAR("allow_download_sounds", "1");
cvar_t	allow_download_demos = CVAR("allow_download_demos", "1");
cvar_t	allow_download_maps = CVAR("allow_download_maps", "1");
cvar_t	allow_download_anymap = CVAR("allow_download_pakmaps", "0");
cvar_t	allow_download_pakcontents = CVARD("allow_download_pakcontents", "1", "controls whether clients connected to this server are allowed to download files from within packages. Does NOT implicitly allow downloading bsps, set allow_download_pakmaps to enable that.");
cvar_t	allow_download_root = CVARD("allow_download_root", "0", "If set, enables downloading from the root of the gamedir (not the basedir). This setting is dangerous as it can allow downloading configs.");
cvar_t	allow_download_textures = CVAR("allow_download_textures", "1");
cvar_t	allow_download_packages = CVAR("allow_download_packages", "1");
cvar_t	allow_download_refpackages = CVARD("allow_download_refpackages", "1", "If set to 1, packages that contain files needed during spawn functions will be become 'referenced' and automatically downloaded to clients.\nThis cvar should probably not be set if you have large packages that provide replacement pickup models on public servers.\nThe path command will show a '(ref)' tag next to packages which clients will automatically attempt to download.");
cvar_t	allow_download_wads = CVAR("allow_download_wads", "1");
cvar_t	allow_download_configs = CVAR("allow_download_configs", "0");
cvar_t	allow_download_copyrighted = CVAR("allow_download_copyrighted", "0");
cvar_t	allow_download_other = CVAR("allow_download_other", "0");

cvar_t sv_serverip = CVARD("sv_serverip", "", "Set this cvar to the server's public ip address if the server is behind a firewall and cannot detect its own public address. Providing a port is required if the firewall/nat remaps it, but is otherwise optional.");
cvar_t sv_public = CVAR("sv_public", "0");
cvar_t sv_listen_qw = CVARAF("sv_listen_qw", "1", "sv_listen", 0);
cvar_t sv_listen_nq = CVARD("sv_listen_nq", "2", "Allow new (net)quake clients to connect to the server.\n0 = don't let them in.\n1 = allow them in (WARNING: this allows 'qsmurf' DOS attacks).\n2 = accept (net)quake clients by emulating a challenge (as secure as QW/Q2 but does not fully conform to the NQ protocol).");
cvar_t sv_listen_dp = CVAR("sv_listen_dp", "0"); /*kinda fucked right now*/
cvar_t sv_listen_q3 = CVAR("sv_listen_q3", "0");
cvar_t sv_reportheartbeats = CVAR("sv_reportheartbeats", "1");
cvar_t sv_highchars = CVAR("sv_highchars", "1");
cvar_t sv_maxrate = CVAR("sv_maxrate", "30000");
cvar_t sv_maxdrate = CVARAF("sv_maxdrate", "100000",
							"sv_maxdownloadrate", 0);
cvar_t sv_minping = CVARF("sv_minping", "", CVAR_SERVERINFO);

cvar_t sv_bigcoords = CVARFD("sv_bigcoords", "", CVAR_SERVERINFO, "Uses floats for coordinates instead of 16bit values. Affects clients thusly:\nQW: enforces a mandatory protocol extension\nDP: enables DPP7 protocol support\nNQ: uses RMQ protocol (protocol 999).");
cvar_t sv_calcphs = CVARFD("sv_calcphs", "2", CVAR_LATCH, "Enables culling of sound effects. 0=always skip phs. Sounds are globally broadcast. 1=always generate phs. Sounds are always culled. On large maps the phs will be dumped to disk. 2=On large single-player maps, generation of phs is skipped. Otherwise like option 1.");

cvar_t sv_showconnectionlessmessages = CVARD("sv_showconnectionlessmessages", "0", "Display a line describing each connectionless message that arrives on the server. Primarily a debugging feature, but also potentially useful to admins.");
cvar_t sv_cullplayers_trace = CVARFD("sv_cullplayers_trace", "", CVAR_SERVERINFO, "Attempt to cull player entities using tracelines as an anti-wallhack.");
cvar_t sv_cullentities_trace = CVARFD("sv_cullentities_trace", "", CVAR_SERVERINFO, "Attempt to cull non-player entities using tracelines as an extreeme anti-wallhack.");
cvar_t sv_phs = CVARD("sv_phs", "1", "If 1, do not use the phs. It is generally better to use sv_calcphs instead, and leave this as 1.");
cvar_t sv_resetparms = CVAR("sv_resetparms", "0");
cvar_t sv_pupglow = CVARF("sv_pupglow", "", CVAR_SERVERINFO);

cvar_t sv_master = CVAR("sv_master", "0");
cvar_t sv_masterport = CVAR("sv_masterport", "0");

cvar_t pext_ezquake_nochunks = CVARD("pext_ezquake_nochunks", "1", "Prevents ezquake clients from being able to use the chunked download extension. This sidesteps numerous ezquake issues, and will make downloads slower but more robust.");

cvar_t	sv_gamespeed = CVARAF("sv_gamespeed", "1", "slowmo", 0);
cvar_t	sv_csqcdebug = CVAR("sv_csqcdebug", "0");
cvar_t	sv_csqc_progname = CVAR("sv_csqc_progname", "csprogs.dat");
cvar_t pausable	= CVAR("pausable", "1");
cvar_t sv_banproxies = CVARD("sv_banproxies", "0", "If enabled, anyone connecting via known proxy software will be refused entry. This should aid with blocking aimbots, but is only reliable for certain public proxies.");
cvar_t	sv_specprint = CVARD("sv_specprint", "3",	"Bitfield that controls which player events spectators see when tracking that player.\n&1: spectators will see centerprints.\n&2: spectators will see sprints (pickup messages etc).\n&4: spectators will receive console commands, this is potentially risky.\nIndividual spectators can use 'setinfo sp foo' to limit this setting.");


//
// game rules mirrored in svs.info
//
cvar_t	fraglimit		= CVARF("fraglimit",		"" ,	CVAR_SERVERINFO);
cvar_t	timelimit		= CVARF("timelimit",		"" ,	CVAR_SERVERINFO);
cvar_t	teamplay		= CVARF("teamplay",		"" ,	CVAR_SERVERINFO);
cvar_t	samelevel		= CVARF("samelevel",		"" ,	CVAR_SERVERINFO);
cvar_t	sv_playerslots	= CVARAD("sv_playerslots",	"", 
								 "maxplayers",		"Specify maximum number of player/spectator/bot slots, new value takes effect on the next map (this may result in players getting kicked). This should generally be set to maxclients+maxspectators. Leave blank for a default value.\nMaximum value of "STRINGIFY(MAX_CLIENTS)". Values above 16 will result in issues with vanilla NQ clients. Effective values other than 32 will result in issues with vanilla QW clients.");
cvar_t	maxclients		= CVARAFD("maxclients",		"8",
								 "sv_maxclients",			CVAR_SERVERINFO, "Specify the maximum number of players allowed on the server at once. Can be changed mid-map.");
cvar_t	maxspectators	= CVARFD("maxspectators",	"8",	CVAR_SERVERINFO, "Specify the maximum number of spectators allowed on the server at once. Can be changed mid-map.");
#ifdef SERVERONLY
cvar_t	deathmatch		= CVARF("deathmatch",		"1",	CVAR_SERVERINFO);			// 0, 1, or 2
#else
cvar_t	deathmatch		= CVARF("deathmatch",		"",	CVAR_SERVERINFO);			// 0, 1, or 2
#endif
cvar_t	coop			= CVARF("coop",			"" ,	CVAR_SERVERINFO);
cvar_t	skill			= CVARF("skill",			"" ,	CVAR_SERVERINFO);			// 0, 1, 2 or 3
cvar_t	spawn			= CVARF("spawn",			"" ,	CVAR_SERVERINFO);
cvar_t	watervis		= CVARF("watervis",		"" ,	CVAR_SERVERINFO);
cvar_t	rearview		= CVARF("rearview",		"" ,	CVAR_SERVERINFO);
#pragma warningmsg("Remove this some time")
cvar_t	allow_skybox	= CVARF("allow_skybox",	"",		CVAR_SERVERINFO);
cvar_t	sv_allow_splitscreen = CVARF("allow_splitscreen","",CVAR_SERVERINFO);
cvar_t	fbskins			= CVARF("fbskins",			"",	CVAR_SERVERINFO);	//to get rid of lame fuhquake fbskins
cvar_t	mirrors			= CVARF("mirrors",			"" ,	CVAR_SERVERINFO);

cvar_t	sv_motd[]		={	CVAR("sv_motd1",		""),
							CVAR("sv_motd2",		""),
							CVAR("sv_motd3",		""),
							CVAR("sv_motd4",		"")	};

cvar_t sv_compatiblehulls = CVAR("sv_compatiblehulls", "1");
cvar_t  dpcompat_stats = CVAR("dpcompat_stats", "0");

cvar_t	hostname = CVARF("hostname","unnamed", CVAR_SERVERINFO);

cvar_t	secure = CVARF("secure", "", CVAR_SERVERINFO);

extern cvar_t sv_nqplayerphysics;

char cvargroup_serverpermissions[] = "server permission variables";
char cvargroup_serverinfo[] = "serverinfo variables";
char cvargroup_serverphysics[] = "server physics variables";
char cvargroup_servercontrol[] = "server control variables";

vfsfile_t	*sv_fraglogfile;

void SV_FixupName(char *in, char *out, unsigned int outlen);
void SV_AcceptClient (netadr_t *adr, int userid, char *userinfo);
void PRH2_SetPlayerClass(client_t *cl, int classnum, qboolean fromqc);
char *SV_BannedReason (netadr_t *a);
void SV_EvaluatePenalties(client_t *cl);

#ifdef SQL
void PR_SQLCycle();
#endif

int	nextuserid;

//============================================================================

qboolean ServerPaused(void)
{
	return sv.paused;
}

/*
================
SV_Shutdown

Quake calls this before calling Sys_Quit or Sys_Error
================
*/
void SV_Shutdown (void)
{
	SV_Master_Shutdown ();
	if (sv_fraglogfile)
	{
		VFS_CLOSE (sv_fraglogfile);
		sv_fraglogfile = NULL;
	}

	SV_UnspawnServer();

	if (sv.mvdrecording)
		SV_MVDStop (0, false);

	if (svs.entstatebuffer.entities)
	{
		BZ_Free(svs.entstatebuffer.entities);
		memset(&svs.entstatebuffer.entities, 0, sizeof(svs.entstatebuffer.entities));
	}
	if (sv_staticentities)
	{
		sv_max_staticentities = 0;
		sv.num_static_entities = 0;
		BZ_Free(sv_staticentities);
		sv_staticentities = NULL;
	}
	while (svs.free_lagged_packet)
	{
		laggedpacket_t *lp = svs.free_lagged_packet;
		svs.free_lagged_packet = lp->next;
		Z_Free(lp);
	}

#ifdef HEXEN2
	T_FreeStrings();
#endif

	SV_GibFilterPurge();

	NET_Shutdown ();

	COM_DestroyWorkerThread();

#ifdef WEBSERVER
	IWebShutdown();
#endif

	COM_BiDi_Shutdown();
	Memory_DeInit();
}

/*
================
SV_Error

Sends a datagram to all the clients informing them of the server crash,
then exits
================
*/
void VARGS SV_Error (char *error, ...)
{
	va_list		argptr;
	static	char		string[1024];
	static	qboolean inerror = false;

	if (inerror)
	{
		Sys_Error ("SV_Error: recursively entered (%s)", string);
	}

	inerror = true;

	va_start (argptr,error);
	vsnprintf (string,sizeof(string)-1, error,argptr);
	va_end (argptr);

	{
		extern cvar_t pr_ssqc_coreonerror;

		if (svprogfuncs && pr_ssqc_coreonerror.value && svprogfuncs->save_ents)
		{
			int size = 1024*1024*8;
			char *buffer = BZ_Malloc(size);
			svprogfuncs->save_ents(svprogfuncs, buffer, &size, size, 3);
			COM_WriteFile("ssqccore.txt", buffer, size);
			BZ_Free(buffer);
		}
	}


	SV_EndRedirect();

	Con_Printf ("SV_Error: %s\n",string);

	if (sv.state)
		SV_FinalMessage (va("server crashed: %s\n", string));

	SV_UnspawnServer();
#ifndef SERVERONLY
	if (cls.state)
	{
		inerror = false;
		Host_EndGame("SV_Error: %s\n",string);
	}
	SCR_EndLoadingPlaque();

	if (!isDedicated)	//dedicated servers crash...
	{
		extern jmp_buf 	host_abort;
		SCR_EndLoadingPlaque();
		inerror=false;
		longjmp (host_abort, 1);
	}
#endif

	SV_Shutdown ();

	Sys_Error ("SV_Error: %s\n",string);
}

#ifdef SERVERONLY
void VARGS Host_Error (char *error, ...)
{
	va_list		argptr;
	char		string[1024];

	va_start (argptr,error);
	vsnprintf (string,sizeof(string)-1, error,argptr);
	va_end (argptr);

	SV_Error("%s", string);
}
#endif

#ifdef SERVERONLY
void VARGS Host_EndGame (char *error, ...)
{
	va_list		argptr;
	char		string[1024];

	va_start (argptr,error);
	vsnprintf (string,sizeof(string)-1, error,argptr);
	va_end (argptr);

	SV_Error("%s", string);
}
#endif

/*
==================
SV_FinalMessage

Used by SV_Error and SV_Quit_f to send a final message to all connected
clients before the server goes down.  The messages are sent immediately,
not just stuck on the outgoing message list, because the server is going
to totally exit after returning from this function.
==================
*/
void SV_FinalMessage (char *message)
{
	int			i;
	client_t	*cl;

	SZ_Clear (&sv.datagram);
	MSG_WriteByte (&sv.datagram, svc_print);
	MSG_WriteByte (&sv.datagram, PRINT_HIGH);
	MSG_WriteString (&sv.datagram, message);
	MSG_WriteByte (&sv.datagram, svc_disconnect);

	for (i=0, cl = svs.clients ; i<svs.allocated_client_slots ; i++, cl++)
		if (cl->state >= cs_spawned)
			if (ISNQCLIENT(cl) || ISQWCLIENT(cl))
				Netchan_Transmit (&cl->netchan, sv.datagram.cursize
						, sv.datagram.data, 10000);
}



/*
=====================
SV_DropClient

Called when the player is totally leaving the server, either willingly
or unwillingly.  This is NOT called if the entire server is quiting
or crashing.
=====================
*/
void SV_DropClient (client_t *drop)
{
	unsigned int i;
	laggedpacket_t *lp;
	sizebuf_t termmsg;
	char termbuf[64];

	/*drop the first in the chain first*/
	if (drop->controller && drop->controller != drop)
	{
		SV_DropClient(drop->controller);
		return;
	}

	if (!drop->controller && drop->netchan.remote_address.type != NA_INVALID && drop->netchan.remote_address.type != NA_LOOPBACK)
	{
		// add the disconnect
		if (drop->state < cs_connected)
		{
			switch (drop->protocol)
			{
			case SCP_QUAKE2:
				MSG_WriteByte (&drop->netchan.message, svcq2_disconnect);
				break;
			case SCP_QUAKEWORLD:
			case SCP_NETQUAKE:
			case SCP_PROQUAKE:
			case SCP_FITZ666:
			case SCP_DARKPLACES6:
			case SCP_DARKPLACES7:
				MSG_WriteByte (&drop->netchan.message, svc_disconnect);
				break;
			case SCP_BAD:
				break;
			case SCP_QUAKE3:
				break;
			}
		}
	}

	if (drop->state == cs_spawned)
	{
#ifdef SVRANKING
		if (drop->rankid)
		{
			int j;
			rankstats_t rs;
			if (Rank_GetPlayerStats(drop->rankid, &rs))
			{
				rs.timeonserver += realtime - drop->stats_started;
				drop->stats_started = realtime;
				rs.kills += drop->kills;
				rs.deaths += drop->deaths;

				rs.flags1 &= ~(RANK_CUFFED|RANK_MUTED|RANK_CRIPPLED);
//				if (drop->iscuffed==2)
//					rs.flags1 |= RANK_CUFFED;
//				if (drop->ismuted==2)
//					rs.flags1 |= RANK_MUTED;
//				if (drop->iscrippled==2)
//					rs.flags1 |= RANK_CRIPPLED;
				drop->kills=0;
				drop->deaths=0;
				pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, drop->edict);
				if (pr_global_ptrs->SetChangeParms)
					PR_ExecuteProgram (svprogfuncs, pr_global_struct->SetChangeParms);
				for (j=0 ; j<NUM_RANK_SPAWN_PARMS ; j++)
					if (pr_global_ptrs->spawnparamglobals[j])
						rs.parm[j] = *pr_global_ptrs->spawnparamglobals[j];
				Rank_SetPlayerStats(drop->rankid, &rs);
			}
		}
#endif
	}
#ifdef SUBSERVERS
	SSV_SavePlayerStats(drop, 2);
#endif
#ifdef SVCHAT
	SV_WipeChat(drop);
#endif
	switch(svs.gametype)
	{
	case GT_MAX:
		break;
	case GT_Q1QVM:
	case GT_PROGS:
		if (svprogfuncs)
		{
			if ((drop->state == cs_spawned || drop->istobeloaded) && host_initialized)
			{
#ifdef VM_Q1
				if (svs.gametype == GT_Q1QVM)
				{
					Q1QVM_DropClient(drop);
				}
				else
#endif
				{
					if (!drop->spectator)
					{
					// call the prog function for removing a client
					// this will set the body to a dead frame, among other things
						pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, drop->edict);
						if (pr_global_ptrs->ClientDisconnect)
							PR_ExecuteProgram (svprogfuncs, pr_global_struct->ClientDisconnect);
						sv.spawned_client_slots--;
					}
					else
					{
						// call the prog function for removing a client
						// this will set the body to a dead frame, among other things
						pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, drop->edict);
						if (SpectatorDisconnect)
							PR_ExecuteProgram (svprogfuncs, SpectatorDisconnect);
						sv.spawned_observer_slots--;
					}
				}

				if (progstype == PROG_NQ)
					ED_Clear(svprogfuncs, drop->edict);
			}

			if (svprogfuncs && drop->edict && drop->edict->v)
				drop->edict->v->frags = 0;
			drop->edict = NULL;

			if (drop->spawninfo)
				Z_Free(drop->spawninfo);
			drop->spawninfo = NULL;
		}
		break;
	case GT_QUAKE2:
#ifdef Q2SERVER
		if (ge)
			ge->ClientDisconnect(drop->q2edict);
#endif
		break;
	case GT_QUAKE3:
#ifdef Q3SERVER
		SVQ3_DropClient(drop);
#endif
		break;
	case GT_HALFLIFE:
#ifdef HLSERVER
		SVHL_DropClient(drop);
#endif
		break;
	}

	if (drop->centerprintstring)
		Z_Free(drop->centerprintstring);
	drop->centerprintstring = NULL;

	if (!drop->redirect && drop->state > cs_zombie)
	{
		if (drop->spectator)
			Con_TPrintf ("Spectator \"%s\" removed\n",drop->name);
		else
			Con_TPrintf ("Client \"%s\" removed\n",drop->name);
	}

	if (drop->download)
	{
		VFS_CLOSE (drop->download);
		drop->download = NULL;
	}
	if (drop->upload)
	{
		VFS_CLOSE (drop->upload);
		drop->upload = NULL;
	}
	*drop->uploadfn = 0;

#ifndef SERVERONLY
	if (drop->netchan.remote_address.type == NA_LOOPBACK)
	{
		Netchan_Transmit(&drop->netchan, 0, "", SV_RateForClient(drop));
#ifdef warningmsg
#pragma warningmsg("This means that we may not see the reason we kicked ourselves.")
#endif
		drop->state = cs_free;	//don't do zombie stuff
		CL_BeginServerReconnect();
	}
	else
#endif
	if (drop->state == cs_spawned || drop->istobeloaded)
	{
		drop->istobeloaded = false;
		drop->state = cs_zombie;		// become free in a few seconds
		drop->connection_started = realtime;	// for zombie timeout
	}
	else
		drop->state = cs_free;	//skip zombie state if qc couldn't access it anyway.
	drop->istobeloaded = false;

	drop->old_frags = 0;
#ifdef SVRANKING
	drop->kills = 0;
	drop->deaths = 0;
#endif
	drop->namebuf[0] = 0;
	drop->name = drop->namebuf;
	memset (drop->userinfo, 0, sizeof(drop->userinfo));

	while ((lp = drop->laggedpacket))
	{
		drop->laggedpacket = lp->next;
		lp->next = svs.free_lagged_packet;
		svs.free_lagged_packet = lp;
	}
	drop->laggedpacket_last = NULL;

	drop->pendingentbits = NULL;
	if (drop->frameunion.frames)	//union of the same sort of structure
	{
		Z_Free(drop->frameunion.frames);
		drop->frameunion.frames = NULL;
	}
	if (drop->sentents.entities)
	{
		Z_Free(drop->sentents.entities);
		memset(&drop->sentents.entities, 0, sizeof(drop->sentents.entities));
	}

	for (i = 0; i < MAX_CL_STATS; i++)
	{
		Z_Free(drop->statss[i]);
		drop->statss[i] = NULL;
	}

	if (drop->csqcentversions)
		Z_Free(drop->csqcentversions);
	drop->csqcentversions = NULL;
	if (drop->csqcentsequence)
		Z_Free(drop->csqcentsequence);
	drop->csqcentsequence = NULL;
	drop->csqcactive = false;

	memset(&termmsg, 0, sizeof(termmsg));
	termmsg.data = termbuf;
	termmsg.maxsize = sizeof(termbuf);
	termmsg.cursize = 0;
	if (drop->netchan.remote_address.type == NA_LOOPBACK)
	{
	}
	else if (ISQWCLIENT(drop) || ISNQCLIENT(drop))
	{
		MSG_WriteByte(&termmsg, svc_disconnect);
	}
	else if (ISQ2CLIENT(drop))
	{
		MSG_WriteByte(&termmsg, svcq2_disconnect);
	}
	else if (ISQ3CLIENT(drop))
	{
	}
	if (drop->netchan.remote_address.type != NA_INVALID)
	{
		//send twice, to cover packetloss a little.
		Netchan_Transmit (&drop->netchan, termmsg.cursize, termmsg.data, 10000);
		Netchan_Transmit (&drop->netchan, termmsg.cursize, termmsg.data, 10000);
	}

	if (svs.gametype == GT_PROGS || svs.gametype == GT_Q1QVM)	//gamecode should do it all for us.
	{
// send notification to all remaining clients
		SV_FullClientUpdate (drop, NULL);
		SV_MVD_FullClientUpdate(NULL, drop);
	}

	if (drop->controlled)
	{
		drop->controlled->controller = NULL;
		SV_DropClient(drop->controlled);
		drop->controlled = NULL;
	}
}


//====================================================================

typedef struct pinnedmessages_s {
	struct pinnedmessages_s *next;
	char setby[64];
	char message[1024];
} pinnedmessages_t;
pinnedmessages_t *pinned;
qboolean dopinnedload = true;
void PIN_DeleteOldestMessage(void);
void PIN_MakeMessage(char *from, char *msg);

void PIN_LoadMessages(void)
{
	char setby[64];
	char message[1024];

	int i;
	char *file, *end;
	char *lstart;
	int len;

	dopinnedload = false;

	while(pinned)
		PIN_DeleteOldestMessage();

	len = FS_LoadFile("pinned.txt", (void**)&file);
	if (!file)
		return;
	end = file+len;

	lstart = file;
	for(;;)
	{
		while (lstart<end && *lstart <= ' ')
			lstart++;

		for (i = 0; lstart<end && i < sizeof(message)-1; i++)
		{
			if (*lstart == '\n' || *lstart == '\r')
				break;
			message[i] = *lstart++;
		}
		message[i] = '\0';

		while (lstart<end && *lstart <= ' ')
			lstart++;

		for (i = 0; lstart<end && i < sizeof(setby)-1; i++)
		{
			if (*lstart == '\n' || *lstart == '\r')
				break;
			setby[i] = *lstart++;
		}
		setby[i] = '\0';

		if (!*setby)
			break;

		PIN_MakeMessage(setby, message);
	}

	FS_FreeFile(file);
}
void PIN_SaveMessages(void)
{
	pinnedmessages_t *p;
	vfsfile_t *f;

	f = FS_OpenVFS("pinned.txt", "wb", FS_GAMEONLY);
	if (!f)
	{
		Con_TPrintf("couldn't write to %s\n", "pinned.txt");
		return;
	}

	for (p = pinned; p; p = p->next)
		VFS_PRINTF(f, "%s\r\n\t%s\r\n\n", p->message, p->setby);

	VFS_CLOSE(f);
}
void PIN_DeleteOldestMessage(void)
{
	pinnedmessages_t *old;
	if (dopinnedload)
		PIN_LoadMessages();

	old = pinned;
	if (old)
	{
		pinned = pinned->next;
		Z_Free(old);
	}
}
void PIN_MakeMessage(char *from, char *msg)
{
	pinnedmessages_t *p;
	pinnedmessages_t *newp;

	if (dopinnedload)
		PIN_LoadMessages();

	newp = BZ_Malloc(sizeof(pinnedmessages_t));
	Q_strncpyz(newp->setby, from, sizeof(newp->setby));
	Q_strncpyz(newp->message, msg, sizeof(newp->message));
	newp->next = NULL;

	if (!pinned)
		pinned = newp;
	else
	{
		for (p = pinned; ; p = p->next)
		{
			if (!p->next)
			{
				p->next = newp;
				break;
			}
		}
	}
}
void PIN_ShowMessages(client_t *cl)
{
	pinnedmessages_t *p;
	if (dopinnedload)
		PIN_LoadMessages();

	if (!pinned)
		return;

	SV_ClientPrintf(cl, PRINT_HIGH, "\n\n\n");
	for (p = pinned; p; p = p->next)
	{
		SV_ClientPrintf(cl, PRINT_HIGH, "%s\n\n        %s\n", p->message, p->setby);
		SV_ClientPrintf(cl, PRINT_HIGH, "\n\n\n");
	}

}

//====================================================================

/*
===================
SV_CalcPing

===================
*/
int SV_CalcPing (client_t *cl, qboolean forcecalc)
{
	float		ping;
	int			i;
	int			count;

	if (!cl->frameunion.frames)
		return 0;

	switch (cl->protocol)
	{
	default:
	case SCP_BAD:
		break;
#ifdef Q2SERVER
	case SCP_QUAKE2:
		{
			q2client_frame_t *frame;
			ping = 0;
			count = 0;
			for (frame = cl->frameunion.q2frames, i=0 ; i<Q2UPDATE_BACKUP ; i++, frame++)
			{
				if (frame->ping_time > 0)
				{
					ping += frame->ping_time;
					count++;
				}
			}
			if (!count)
				return 9999;
			ping /= count;

		}
		return ping;
#endif
	case SCP_QUAKE3:
		break;
	case SCP_DARKPLACES6:
	case SCP_DARKPLACES7:
	case SCP_NETQUAKE:
	case SCP_PROQUAKE:
	case SCP_FITZ666:
	case SCP_QUAKEWORLD:
		{
			register	client_frame_t *frame;
			ping = 0;
			count = 0;
			for (frame = cl->frameunion.frames, i=0 ; i<UPDATE_BACKUP ; i++, frame++)
			{
				if (frame->ping_time > 0)
				{
					ping += frame->ping_time;
					count++;
				}
			}
			if (!count)
				return 9999;
			ping /= count;
		}
		return ping*1000;
	}
	return 0;
}

//generate whatever public userinfo is supported by the client.
//private keys like _ prefixes and the password key are stripped out here.
//password needs to be stripped in case the password key doesn't actually relate to this server.
void SV_GeneratePublicUserInfo(int pext, client_t *cl, char *info, int infolength)
{
	char *key, *s;
	int i;
	
	//FIXME: we should probably use some sort of priority system instead if I'm honest about it
	if (pext & PEXT_BIGUSERINFOS)
		Q_strncpyz (info, cl->userinfo, infolength);
	else
	{
		if (infolength >= BASIC_INFO_STRING)
			infolength = BASIC_INFO_STRING;
		*info = 0;
		for (i = 0; (key = Info_KeyForNumber(cl->userinfo, i)); i++)
		{
			if (!*key)
				break;
			if (!SV_UserInfoIsBasic(key))
				continue;

			s = Info_ValueForKey(cl->userinfo, key);
			Info_SetValueForStarKey (info, key, s, infolength);
		}
	}

	Info_RemovePrefixedKeys (info, '_');	// server passwords, etc
	Info_RemoveKey(info, "password");
	Info_RemoveKey(info, "*ip");
}

/*
===================
SV_FullClientUpdate

Writes all update values to client. use to=NULL to broadcast.
===================
*/
void SV_FullClientUpdate (client_t *client, client_t *to)
{
	int		i;
	char	info[EXTENDED_INFO_STRING];

	if (!to)
	{
		for (i = 0; i < sv.allocated_client_slots; i++)
		{
			SV_FullClientUpdate(client, &svs.clients[i]); 
		}
		if (sv.mvdrecording)
			SV_FullClientUpdate(client, &demo.recorder);
		return;
	}

	if (to->controller && to->controller != to)
		return;

	i = client - svs.clients;

	if (i >= to->max_net_clients)
		return;	//most clients will crash if they see too high a player index. some even segfault.

//Sys_Printf("SV_FullClientUpdate:  Updated frags for client %d\n", i);

	if (ISQWCLIENT(to))
	{
		int ping = SV_CalcPing (client, false);
		if (ping > 0xffff)
			ping = 0xffff;

		ClientReliableWrite_Begin(to, svc_updatefrags, 4);
		ClientReliableWrite_Byte (to, i);
		ClientReliableWrite_Short(to, client->old_frags);

		ClientReliableWrite_Begin (to, svc_updateping, 4);
		ClientReliableWrite_Byte (to, i);
		ClientReliableWrite_Short (to, ping);

		ClientReliableWrite_Begin (to, svc_updatepl, 3);
		ClientReliableWrite_Byte (to, i);
		ClientReliableWrite_Byte (to, client->lossage);

		ClientReliableWrite_Begin (to, svc_updateentertime, 6);
		ClientReliableWrite_Byte (to, i);
		ClientReliableWrite_Float (to, realtime - client->connection_started);

		SV_GeneratePublicUserInfo(to->fteprotocolextensions, client, info, sizeof(info));

		ClientReliableWrite_Begin(to, svc_updateuserinfo, 7 + strlen(info));
		ClientReliableWrite_Byte (to, i);
		ClientReliableWrite_Long (to, client->userid);
		ClientReliableWrite_String(to, info);
	}
	else if (ISNQCLIENT(to))
	{
		int top, bottom, playercolor;
		char *nam = Info_ValueForKey(client->userinfo, "name");

		ClientReliableWrite_Begin(to, svc_updatefrags, 4);
		ClientReliableWrite_Byte (to, i);
		ClientReliableWrite_Short(to, client->old_frags);

		ClientReliableWrite_Begin(to, svc_updatename, 3 + strlen(nam));
		ClientReliableWrite_Byte (to, i);
		ClientReliableWrite_String(to, nam);

		top = atoi(Info_ValueForKey(client->userinfo, "topcolor"));
		bottom = atoi(Info_ValueForKey(client->userinfo, "bottomcolor"));
		top &= 15;
		if (top > 13)
			top = 13;
		bottom &= 15;
		if (bottom > 13)
			bottom = 13;
		playercolor = top*16 + bottom;

		ClientReliableWrite_Begin (to, svc_updatecolors, 3);
		ClientReliableWrite_Byte (to, i);
		ClientReliableWrite_Byte (to, playercolor);
	}
}

/*
==============================================================================

CONNECTIONLESS COMMANDS

==============================================================================
*/

#define STATUS_OLDSTYLE					0
#define	STATUS_SERVERINFO				1
#define	STATUS_PLAYERS					2
#define	STATUS_SPECTATORS				4
#define	STATUS_SPECTATORS_AS_PLAYERS	8 //for ASE - change only frags: show as "S"

/*
================
SVC_Status

Responds with all the info that qplug or qspy can see
This message can be up to around 5k with worst case string lengths.
================
*/
void SVC_Status (void)
{
	int displayflags;
	int		i;
	client_t	*cl;
	char *name;
	int		ping;
	int		top, bottom;
	char frags[64];

	int slots=0;

	displayflags = atoi(Cmd_Argv(1));
	if (displayflags == STATUS_OLDSTYLE)
		displayflags = STATUS_SERVERINFO|STATUS_PLAYERS;

	Cmd_TokenizeString ("status", false, false);
	SV_BeginRedirect (RD_PACKET, TL_FindLanguage(""));
	if (displayflags&STATUS_SERVERINFO)
		Con_Printf ("%s\n", svs.info);
	for (i=0 ; i<svs.allocated_client_slots ; i++)
	{
		cl = &svs.clients[i];
		if ((cl->state == cs_connected || cl->state == cs_spawned || cl->name[0]) && ((cl->spectator && displayflags&STATUS_SPECTATORS) || (!cl->spectator && displayflags&STATUS_PLAYERS)))
		{
			top = atoi(Info_ValueForKey (cl->userinfo, "topcolor"));
			bottom = atoi(Info_ValueForKey (cl->userinfo, "bottomcolor"));
			top = (top < 0) ? 0 : ((top > 13) ? 13 : top);
			bottom = (bottom < 0) ? 0 : ((bottom > 13) ? 13 : bottom);
			ping = SV_CalcPing (cl, false);
			name = cl->name;

			if (!cl->state)	//show bots differently. Just to be courteous.
				Con_Printf ("%i %i %i %i \"BOT:%s\" \"%s\" %i %i\n", cl->userid,
					cl->old_frags, (int)(realtime - cl->connection_started)/60,
					ping, cl->name, Info_ValueForKey (cl->userinfo, "skin"), top, bottom);
			else
			{
				if (cl->spectator)
				{	//silly mvdsv stuff
					if (displayflags & STATUS_SPECTATORS_AS_PLAYERS)
					{
						frags[0] = 'S';
						frags[1] = '\0';
					}
					else
					{
						ping = -ping;
						sprintf(frags, "%i", -9999);
						name  = va("\\s\\%s", name);
					}
				}
				else
					sprintf(frags, "%i", cl->old_frags);

				Con_Printf ("%i %s %i %i \"%s\" \"%s\" %i %i\n", cl->userid,
					frags, (int)(realtime - cl->connection_started)/60,
					ping, name, Info_ValueForKey (cl->userinfo, "skin"), top, bottom);
			}
		}
		else
			slots++;
	}

	SV_EndRedirect ();
}

#ifdef NQPROT
void SVC_GetInfo (char *challenge, int fullstatus)
{
	//dpmaster support
	char response[MAX_UDP_PACKET];

	client_t	*cl;
	int numclients = 0;
	int i;
	char *resp;
	const char *gamestatus;
	eval_t *v;

	if (!sv_listen_nq.ival && !sv_listen_dp.ival)
		return;

	for (i=0 ; i<svs.allocated_client_slots ; i++)
	{
		cl = &svs.clients[i];
		if ((cl->state == cs_connected || cl->state == cs_spawned || cl->name[0]) && !cl->spectator)
			numclients++;
	}

	if (svprogfuncs)
	{
		v = PR_FindGlobal(svprogfuncs, "worldstatus", PR_ANY, NULL);
		if (v)
			gamestatus = PR_GetString(svprogfuncs, v->string);
		else
			gamestatus = "";
	}
	else
		gamestatus = "";


	resp = response;

	//response packet header
	*resp++ = 0xff;
	*resp++ = 0xff;
	*resp++ = 0xff;
	*resp++ = 0xff;
	if (fullstatus)
		Q_strncpyz(resp, "statusResponse", sizeof(response) - (resp-response) - 1);
	else
		Q_strncpyz(resp, "infoResponse", sizeof(response) - (resp-response) - 1);
	resp += strlen(resp);
	*resp++ = '\n';

	//first line is the serverinfo
	Q_strncpyz(resp, svs.info, sizeof(response) - (resp-response));
	//this is a DP protocol query, so some QW fields are not needed
	Info_RemoveKey(resp, "maxclients");	//replaced with sv_maxclients
	Info_RemoveKey(resp, "map");	//replaced with mapname
	Info_SetValueForKey(resp, "gamename", com_protocolname.string, sizeof(response) - (resp-response));
	Info_SetValueForKey(resp, "modname", FS_GetGamedir(true), sizeof(response) - (resp-response));
//	Info_SetValueForKey(resp, "gamedir", FS_GetGamedir(true), sizeof(response) - (resp-response));
	Info_SetValueForKey(resp, "protocol", va("%d", NQ_NETCHAN_VERSION), sizeof(response) - (resp-response));
	Info_SetValueForKey(resp, "clients", va("%d", numclients), sizeof(response) - (resp-response));
	Info_SetValueForKey(resp, "sv_maxclients", maxclients.string, sizeof(response) - (resp-response));
	Info_SetValueForKey(resp, "mapname", Info_ValueForKey(svs.info, "map"), sizeof(response) - (resp-response));
	Info_SetValueForKey(resp, "qcstatus", gamestatus, sizeof(response) - (resp-response));
	Info_SetValueForKey(resp, "challenge", challenge, sizeof(response) - (resp-response));
	resp += strlen(resp);

	*resp++ = 0;	//there's already a null, but hey

	if (fullstatus)
	{
		client_t *cl;
		char *start = resp;

		if (resp != response+sizeof(response))
		{
			resp[-1] = '\n';	//replace the null terminator that we already wrote

			//on the following lines we have an entry for each client
			for (i=0 ; i<svs.allocated_client_slots ; i++)
			{
				cl = &svs.clients[i];
				if ((cl->state == cs_connected || cl->state == cs_spawned || cl->name[0]) && !cl->spectator)
				{
					Q_strncpyz(resp, va(
									"%d %d \"%s\" \"%s\"\n"
									,
									cl->old_frags,
									SV_CalcPing(cl, false),
									cl->team,
									cl->name
									), sizeof(response) - (resp-response));
					resp += strlen(resp);
				}
			}

			*resp++ = 0;	//this might not be a null
			if (resp == response+sizeof(response))
			{
				//we're at the end of the buffer, it's full. bummer
				//replace 12 bytes with infoResponse
				memcpy(response+4, "infoResponse", 12);
				//move down by len(statusResponse)-len(infoResponse) bytes
				memmove(response+4+12, response+4+14, resp-response-(4+14));
				start -= 14-12; //fix this pointer

				resp = start;
				resp[-1] = 0;	//reset the \n
			}
		}
	}

	NET_SendPacket (NS_SERVER, resp-response, response, &net_from);
}
#endif

#ifdef Q2SERVER
void SVC_InfoQ2 (void)
{
	char	string[64];
	int		i, count;
	int		version;

	if (maxclients.value == 1)
		return;		// ignore in single player

	version = atoi (Cmd_Argv(1));

	if (version != PROTOCOL_VERSION_Q2)
		snprintf (string, sizeof(string), "%s: wrong version\n", hostname.string);
	else
	{
		count = 0;
		for (i=0 ; i<svs.allocated_client_slots ; i++)
			if (svs.clients[i].state >= cs_connected)
				count++;

		snprintf (string, sizeof(string), "%16s %8s %2i/%2i\n", hostname.string, sv.name, count, (int)maxclients.value);
	}

	Netchan_OutOfBandPrint (NS_SERVER, &net_from, "info\n%s", string);
}
#endif

/*
===================
SV_CheckLog

===================
*/
#define	LOG_FLUSH		10*60
void SV_CheckLog (void)
{
	sizebuf_t	*sz;

	sz = &svs.log[svs.logsequence&(FRAGLOG_BUFFERS-1)];

	// bump sequence ten minutes have passed and
	// there is something still sitting there
	//logfrag does the rotation for a full log.
	if (realtime - svs.logtime > LOG_FLUSH && sz->cursize)
	{
		// swap buffers and bump sequence
		svs.logtime = realtime;
		svs.logsequence++;
		sz = &svs.log[svs.logsequence&(FRAGLOG_BUFFERS-1)];
		sz->cursize = 0;
		Con_TPrintf ("beginning fraglog sequence %i\n", svs.logsequence);
	}

}

/*
================
SVC_Log

Responds with all the logged frags for ranking programs.
If a sequence number is passed as a parameter and it is
the same as the current sequence, an A2A_NACK will be returned
instead of the data.
================
*/
void SVC_Log (void)
{
	unsigned int	seq;
	char	data[MAX_DATAGRAM+64];
	char	adr[MAX_ADR_SIZE];
	char *av;

	av = Cmd_Argv(1);
	if (*av)
	{
		seq = strtoul(av, NULL, 0);
		//seq is the last one that the client already has

		if (seq < svs.logsequence-(FRAGLOG_BUFFERS-1))
			seq = svs.logsequence-(FRAGLOG_BUFFERS-1);	//send them this sequence
		else if (seq == svs.logsequence)
		{	//current log isn't available as its not complete yet.
			data[0] = A2A_NACK;
			NET_SendPacket (NS_SERVER, 1, data, &net_from);
			return;
		}
		else if (seq > svs.logsequence)	//future logs are not valid either. reply with the last that was. this is for compat, just in case.
			seq = svs.logsequence-1;
		else
			seq = seq+1;	//they will get the next sequence from the one they already have
	}
	else
		seq = 0;

	if (!fraglog_public.ival)
	{	//frag logs are not public (for DoS protection perhaps?.
		data[0] = A2A_NACK;
		NET_SendPacket (NS_SERVER, 1, data, &net_from);
		return;
	}

	Con_DPrintf ("sending log %i to %s\n", seq, NET_AdrToString(adr, sizeof(adr), &net_from));

	//cookie support, to avoid spoofing
	av = Cmd_Argv(2);
	if (*av)
		Q_snprintfz(data, sizeof(data), "stdlog %i %s\n%s", seq, av, (char *)svs.log_buf[seq&(FRAGLOG_BUFFERS-1)]);
	else
		Q_snprintfz(data, sizeof(data), "stdlog %i\n%s", seq, (char *)svs.log_buf[seq&(FRAGLOG_BUFFERS-1)]);
	NET_SendPacket (NS_SERVER, strlen(data)+1, data, &net_from);
}

/*
================
SVC_Ping

Just responds with an acknowledgement
================
*/
void SVC_Ping (void)
{
	char	data;

	data = A2A_ACK;

	NET_SendPacket (NS_SERVER, 1, &data, &net_from);
}

//from net_from
int SV_NewChallenge (void)
{
	int		i;
	int		oldest;
	int		oldestTime;

	oldest = 0;
	oldestTime = 0x7fffffff;

	// see if we already have a challenge for this ip
	for (i = 0 ; i < MAX_CHALLENGES ; i++)
	{
		if (NET_CompareBaseAdr (&net_from, &svs.challenges[i].adr))
			return svs.challenges[i].challenge;
		if (svs.challenges[i].time < oldestTime)
		{
			oldestTime = svs.challenges[i].time;
			oldest = i;
		}
	}

	// overwrite the oldest
	svs.challenges[oldest].challenge = (rand() << 16) ^ rand();
	svs.challenges[oldest].adr = net_from;
	svs.challenges[oldest].time = realtime;

	return svs.challenges[oldest].challenge;
}

/*
=================
SVC_GetChallenge

Returns a challenge number that can be used
in a subsequent client_connect command.
We do this to prevent denial of service attacks that
flood the server with invalid connection IPs.  With a
challenge, they must give a valid IP address.
=================
*/
void SVC_GetChallenge (void)
{
#ifdef HUFFNETWORK
	int compressioncrc;
#endif
	int		i;
	int		oldest;
	int		oldestTime;

	if (!sv_listen_qw.value && !sv_listen_dp.value && !sv_listen_q3.ival)
		return;

	oldest = 0;
	oldestTime = 0x7fffffff;

	// see if we already have a challenge for this ip
	for (i = 0 ; i < MAX_CHALLENGES ; i++)
	{
		if (NET_CompareBaseAdr (&net_from, &svs.challenges[i].adr))
			break;
		if (svs.challenges[i].time < oldestTime)
		{
			oldestTime = svs.challenges[i].time;
			oldest = i;
		}
	}

	if (i == MAX_CHALLENGES)
	{
		// overwrite the oldest
		svs.challenges[oldest].challenge = (rand() << 16) ^ rand();
		svs.challenges[oldest].adr = net_from;
		svs.challenges[oldest].time = realtime;
		i = oldest;
	}

	// send it back
	{
		char *buf;
		int lng;
		char *over;

#ifdef Q3SERVER
		if (svs.gametype == GT_QUAKE3)	//q3 servers
			buf = va("challengeResponse %i", svs.challenges[i].challenge);
		else
#endif
#ifdef Q2SERVER
			if (svs.gametype == GT_QUAKE2)	//quake 2 servers give a different challenge responce
			buf = va("challenge %i", svs.challenges[i].challenge);
		else
#endif
			buf = va("%c%i", S2C_CHALLENGE, svs.challenges[i].challenge);

		over = buf + strlen(buf) + 1;

		if (svs.gametype == GT_PROGS || svs.gametype == GT_Q1QVM)
		{
#ifdef PROTOCOL_VERSION_FTE
			unsigned int mask;
			//tell the client what fte extensions we support
			mask = Net_PextMask(1, false);
			if (mask)
			{
				lng = LittleLong(PROTOCOL_VERSION_FTE);
				memcpy(over, &lng, sizeof(lng));
				over+=sizeof(lng);

				lng = LittleLong(mask);
				memcpy(over, &lng, sizeof(lng));
				over+=sizeof(lng);
			}
			//tell the client what fte extensions we support
			mask = Net_PextMask(2, false);
			if (mask)
			{
				lng = LittleLong(PROTOCOL_VERSION_FTE2);
				memcpy(over, &lng, sizeof(lng));
				over+=sizeof(lng);

				lng = LittleLong(mask);
				memcpy(over, &lng, sizeof(lng));
				over+=sizeof(lng);
			}
#endif

			mask = net_mtu.ival&~7;
			if (mask > 64)
			{
				lng = LittleLong(PROTOCOL_VERSION_FRAGMENT);
				memcpy(over, &lng, sizeof(lng));
				over+=sizeof(lng);

				lng = LittleLong(mask);
				memcpy(over, &lng, sizeof(lng));
				over+=sizeof(lng);
			}

#ifdef HUFFNETWORK
			compressioncrc = Huff_PreferedCompressionCRC();
			if (compressioncrc)
			{
				lng = LittleLong(PROTOCOL_VERSION_HUFFMAN);
				memcpy(over, &lng, sizeof(lng));
				over+=sizeof(lng);

				lng = LittleLong(compressioncrc);
				memcpy(over, &lng, sizeof(lng));
				over+=sizeof(lng);
			}
#endif
		}
		if (sv_listen_qw.value || (svs.gametype != GT_PROGS && svs.gametype != GT_Q1QVM))
			Netchan_OutOfBand(NS_SERVER, &net_from, over-buf, buf);

		if (sv_listen_dp.value && (sv_listen_nq.value || sv_bigcoords.value || !sv_listen_qw.value))
		{
		//dp (protocol6 upwards) can respond to this (and fte won't get confused because the challenge will be wrong)
			buf = va("challenge "DISTRIBUTION"%i", svs.challenges[i].challenge);
			Netchan_OutOfBand(NS_SERVER, &net_from, strlen(buf)+1, buf);
		}
#ifdef Q3SERVER
		if (svs.gametype == GT_PROGS || svs.gametype == GT_Q1QVM)
		{
			if (sv_listen_q3.ival)
			{
				buf = va("challengeResponse %i", svs.challenges[i].challenge);
				Netchan_OutOfBand(NS_SERVER, &net_from, strlen(buf), buf);
			}
		}
#endif
	}

//	Netchan_OutOfBandPrint (net_from, "%c%i", S2C_CHALLENGE,
//				svs.challenges[i].challenge);
}

void VARGS SV_OutOfBandPrintf (int q2, netadr_t *adr, char *format, ...)
{
	va_list		argptr;
	char		string[8192];

	va_start (argptr, format);
	if (q2)
	{
		strcpy(string, "print\n");
		vsnprintf (string+6,sizeof(string)-1-6, format+1,argptr);
	}
	else
	{
		string[0] = A2C_PRINT;
		string[1] = '\n';
		vsnprintf (string+2,sizeof(string)-1-2, format,argptr);
	}
	va_end (argptr);


	Netchan_OutOfBand (NS_SERVER, adr, strlen(string), (qbyte *)string);
}
void VARGS SV_OutOfBandTPrintf (int q2, netadr_t *adr, int language, translation_t text, ...)
{
	va_list		argptr;
	char		string[8192];
	const char *format = langtext(text, language);

	va_start (argptr, text);
	if (q2)
	{
		strcpy(string, "print\n");
		vsnprintf (string+6,sizeof(string)-1-6, format+1,argptr);
	}
	else
	{
		string[0] = A2C_PRINT;
		vsnprintf (string+1,sizeof(string)-1-1, format,argptr);
	}
	va_end (argptr);


	Netchan_OutOfBand (NS_SERVER, adr, strlen(string), (qbyte *)string);
}

qboolean SV_ChallengePasses(int challenge)
{
	int i;
	for (i=0 ; i<MAX_CHALLENGES ; i++)
	{	//one per ip.
		if (NET_CompareBaseAdr (&net_from, &svs.challenges[i].adr))
		{
			if (challenge == svs.challenges[i].challenge)
				return true;
			return false;
		}
	}
	return false;
}

void VARGS SV_RejectMessage(int protocol, char *format, ...)
{
	va_list		argptr;
	char		string[8192];
	int len;

	va_start (argptr, format);
	switch(protocol)
	{
#ifdef NQPROT
	case SCP_NETQUAKE:
	case SCP_FITZ666:
	case SCP_PROQUAKE:
		string[4] = CCREP_REJECT;
		vsnprintf (string+5,sizeof(string)-1-5, format,argptr);
		len = strlen(string+4)+1+4;
		*(int*)string = BigLong(NETFLAG_CTL|len);
		NET_SendPacket(NS_SERVER, len, string, &net_from);
		return;
	case SCP_DARKPLACES6:
	case SCP_DARKPLACES7:
		strcpy(string, "reject ");
		vsnprintf (string+7,sizeof(string)-1-7, format,argptr);
		len = strlen(string);
		break;
#endif

	case SCP_QUAKE2:
	case SCP_QUAKE3:
	default:
		strcpy(string, "print\n");
		vsnprintf (string+6,sizeof(string)-1-6, format,argptr);
		len = strlen(string);
		break;

	case SCP_QUAKEWORLD:
		string[0] = A2C_PRINT;
		string[1] = '\n';
		vsnprintf (string+2,sizeof(string)-1-2, format,argptr);
		len = strlen(string);
		break;
	}
	va_end (argptr);

	Netchan_OutOfBand (NS_SERVER, &net_from, len, (qbyte *)string);
}

void SV_AcceptMessage(int protocol)
{
	char		string[8192];
	sizebuf_t	sb;
	int len;
#ifdef NQPROT
	netadr_t localaddr;
#endif

	memset(&sb, 0, sizeof(sb));
	sb.maxsize = sizeof(string);
	sb.data = string;

	switch(protocol)
	{
#ifdef NQPROT
	case SCP_NETQUAKE:
	case SCP_FITZ666:
	case SCP_PROQUAKE:
//		if (net_from.type != NA_LOOPBACK)
		{
			SZ_Clear(&sb);
			MSG_WriteLong(&sb, 0);
			MSG_WriteByte(&sb, CCREP_ACCEPT);
			NET_LocalAddressForRemote(svs.sockets, &net_from, &localaddr, 0);
			MSG_WriteLong(&sb, ShortSwap(localaddr.port));
			MSG_WriteByte(&sb, (protocol==SCP_NETQUAKE)?0:1/*MOD_PROQUAKE*/);
			MSG_WriteByte(&sb, 10 * 3.50/*MOD_PROQUAKE_VERSION*/);
			*(int*)sb.data = BigLong(NETFLAG_CTL|sb.cursize);
			NET_SendPacket(NS_SERVER, sb.cursize, sb.data, &net_from);
			return;
		}
	case SCP_DARKPLACES6:
	case SCP_DARKPLACES7:
		strcpy(string, "accept");
		len = strlen(string);
		break;
#endif

	case SCP_QUAKE3:
		strcpy(string, "connectResponse");
		len = strlen(string);
		break;
	case SCP_QUAKE2:
	default:
		strcpy(string, "client_connect\n");
		len = strlen(string);
		break;

	case SCP_QUAKEWORLD:
		string[0] = S2C_CONNECTION;
		string[1] = '\n';
		string[2] = '\0';
		len = strlen(string);
		break;
	}

	Netchan_OutOfBand (NS_SERVER, &net_from, len, (qbyte *)string);
}

#ifndef _WIN32
#include <sys/stat.h>
static void SV_CheckRecentCrashes(client_t *tellclient)
{
#ifndef FTE_TARGET_WEB
	struct stat sb;
	if (-1 != stat("crash.log", &sb))
	{
		if ((time(NULL) - sb.st_mtime) > 2*24*60*60)
			return;	//after 2 days, we stop advertising that we once crashed.
		SV_ClientPrintf(tellclient, PRINT_HIGH, "\1WARNING: crash.log exists, dated %s\n", ctime(&sb.st_mtime));
	}
#endif
}
#else
static void SV_CheckRecentCrashes(client_t *tellclient)
{
}
#endif


void SV_ClientProtocolExtensionsChanged(client_t *client)
{
	int i;
	int maxpacketentities;
	extern cvar_t pr_maxedicts;

	client->fteprotocolextensions  &= Net_PextMask(1, ISNQCLIENT(client));
	client->fteprotocolextensions2 &= Net_PextMask(2, ISNQCLIENT(client));

	//some gamecode can't cope with some extensions for some reasons... and I'm too lazy to fix the code to cope.
	if (svs.gametype == GT_HALFLIFE)
		client->fteprotocolextensions2 &= ~PEXT2_REPLACEMENTDELTAS;

	//
	client->maxmodels = 256;
	if (client->fteprotocolextensions & PEXT_256PACKETENTITIES)
		maxpacketentities = MAX_EXTENDED_PACKET_ENTITIES;
	else
		maxpacketentities = MAX_STANDARD_PACKET_ENTITIES;	//true for qw,q2

	if (client->fteprotocolextensions2 & PEXT2_REPLACEMENTDELTAS)
	{
		client->max_net_clients = ISQWCLIENT(client)?QWMAX_CLIENTS:NQMAX_CLIENTS;

		//you need to reconnect for this to update, of course. so make sure its not *too* low...
		client->max_net_ents =  bound(512, pr_maxedicts.ival, MAX_EDICTS);
		client->maxmodels = MAX_PRECACHE_MODELS;	//protocol limited to 14 bits.
	}
	else if (ISQWCLIENT(client))	//readd?
	{
		client->max_net_clients = QWMAX_CLIENTS;
		client->max_net_ents = 512;
		if (client->fteprotocolextensions & PEXT_ENTITYDBL)
			client->max_net_ents += 512;
		if (client->fteprotocolextensions & PEXT_ENTITYDBL2)
			client->max_net_ents += 1024;
	
		if (client->fteprotocolextensions & PEXT_MODELDBL)
			client->maxmodels = MAX_PRECACHE_MODELS;
	}
	else if (ISDPCLIENT(client))
	{
		client->max_net_clients = 255;
		client->max_net_ents = bound(512, pr_maxedicts.ival, 32768);
		client->maxmodels = 1024;	//protocol limit of 16 bits. 15 bits for late precaches. client limit of 1k

		client->datagram.maxsize = sizeof(host_client->datagram_buf);
	}
	else if (client->protocol == SCP_FITZ666)
	{
		client->max_net_clients = NQMAX_CLIENTS;
		client->max_net_ents = bound(512, pr_maxedicts.ival, 32768);	//fitzquake supports 65535, but our writeentity builtin works differently, which causes problems.
		client->maxmodels = 1024;
		maxpacketentities = 512;

		client->datagram.maxsize = sizeof(host_client->datagram_buf);
	}
	else
	{
		client->max_net_clients = NQMAX_CLIENTS;
		client->datagram.maxsize = MAX_NQDATAGRAM;	//vanilla limit
		client->max_net_ents = bound(512, pr_maxedicts.ival, 600);
	}

	if (client->fteprotocolextensions2 & PEXT2_MAXPLAYERS)
		client->max_net_clients = MAX_CLIENTS;

	client->max_net_clients = min(client->max_net_clients, MAX_CLIENTS);

	client->pendingentbits = NULL;

	//initialise the client's frames, based on that client's protocol
	switch(client->protocol)
	{
#ifdef Q3SERVER
	case SCP_QUAKE3:
		if (client->frameunion.q3frames)
			Z_Free(client->frameunion.q3frames);
		client->frameunion.q3frames = Z_Malloc(Q3UPDATE_BACKUP*sizeof(*client->frameunion.q3frames));
		break;
#endif

#ifdef Q2SERVER
	case SCP_QUAKE2:
		// build a new connection
		// accept the new client
		// this is the only place a client_t is ever initialized
		client->frameunion.q2frames = client->frameunion.q2frames;	//don't touch these.
		if (client->frameunion.q2frames)
			Z_Free(client->frameunion.q2frames);

		client->frameunion.q2frames = Z_Malloc(sizeof(q2client_frame_t)*Q2UPDATE_BACKUP);
		break;
#endif

	default:
		if (client->frameunion.frames)
			Z_Free(client->frameunion.frames);

		if ((client->fteprotocolextensions2 & PEXT2_REPLACEMENTDELTAS))// || ISDPCLIENT(&temp))
		{
			char *ptr;
			int maxents = client->max_net_ents;//maxpacketentities;	/*this is the max number of ents updated per frame. we can't track more, so...*/
			ptr = Z_Malloc(	sizeof(client_frame_t)*UPDATE_BACKUP+
							sizeof(*client->pendingentbits)*client->max_net_ents+
							sizeof(unsigned int)*maxents*UPDATE_BACKUP+
							sizeof(unsigned int)*maxents*UPDATE_BACKUP);
			client->frameunion.frames = (void*)ptr;
			ptr += sizeof(*client->frameunion.frames)*UPDATE_BACKUP;
			client->pendingentbits = (void*)ptr;
			ptr += sizeof(*client->pendingentbits)*client->max_net_ents;
			for (i = 0; i < UPDATE_BACKUP; i++)
			{
				client->frameunion.frames[i].entities.max_entities = maxents;
				client->frameunion.frames[i].resendentnum = (void*)ptr;
				ptr += sizeof(*client->frameunion.frames[i].resendentnum)*maxents;
				client->frameunion.frames[i].resendentbits = (void*)ptr;
				ptr += sizeof(*client->frameunion.frames[i].resendentbits)*maxents;
			}

			//make sure the reset is sent.
			client->pendingentbits[0] = UF_REMOVE;
		}
		else
		{
			client->frameunion.frames = Z_Malloc((sizeof(client_frame_t)+sizeof(entity_state_t)*maxpacketentities)*UPDATE_BACKUP);
			for (i = 0; i < UPDATE_BACKUP; i++)
			{
				client->frameunion.frames[i].entities.max_entities = maxpacketentities;
				client->frameunion.frames[i].entities.entities = (entity_state_t*)(client->frameunion.frames+UPDATE_BACKUP) + i*client->frameunion.frames[i].entities.max_entities;
			}
		}
		break;
	}
}



/*
==================
SVC_DirectConnect

A connection request that did not come from the master
==================
arguments must be tokenized first
Q3: connect "\key\val"
DP: connect\key\val
QW: connect $VER $QPORT $CHALLENGE "\key\val"
SS: connect2 $VER $QPORT $CHALLENGE "\key\val" "\key\val"
NQ: hacked to take the form of QW
extension flags follow it.
*/
client_t *SVC_DirectConnect(void)
{
	char		userinfo[MAX_SPLITS][2048];
	netadr_t	adr;
	int			i;
	client_t	*cl, *newcl;
	client_t	temp;
	edict_t		*ent;
#ifdef Q2SERVER
	q2edict_t	*q2ent;
#endif
	int			edictnum;
	char		*s;
	int			clients, spectators;
	qboolean	spectator;
	int			qport;
	int			version;
	int			challenge;
	int			huffcrc = 0;
	int			mtu = 0;
	char guid[128] = "";
	char basic[80];
	qboolean	redirect = false;
	qboolean	preserveparms = false;

	int numssclients = 1;

	int protocol;

	unsigned int protextsupported=0;
	unsigned int protextsupported2=0;
	extern cvar_t sv_protocol_nq, net_compress;


	char *name;
	char adrbuf[MAX_ADR_SIZE];

	if (*Cmd_Argv(1) == '\\')
	{	//connect "\key\val"

		//this is used by q3 (note, we already decrypted the huffman connection packet in a hack)
		if (!sv_listen_q3.ival)
		{
			if (!sv_listen_nq.value)
				SV_RejectMessage (SCP_DARKPLACES6, "Server is not accepting quake3 clients at this time.\n", version_string());
			Con_TPrintf ("* rejected connect from q3 client\n");
			return NULL;
		}
		numssclients = 1;
		protocol = SCP_QUAKE3;

		Q_strncpyz (userinfo[0], Cmd_Argv(1), sizeof(userinfo[0])-1);

		switch (atoi(Info_ValueForKey(userinfo[0], "protocol")))
		{
		case 68:	//regular q3 1.32
			break;
//		case 43:	//q3 1.11 (most 'recent' demo)
//			break;
		default:
			SV_RejectMessage (SCP_BAD, "Server is %s.\n", version_string());
			Con_TPrintf ("* rejected connect from incompatable client\n");
			return NULL;
		}

		s = Info_ValueForKey(userinfo[0], "challenge");
		challenge = atoi(s);

		s = Info_ValueForKey(userinfo[0], "qport");
		qport = atoi(s);

		s = Info_ValueForKey(userinfo[0], "name");
		if (!*s)
			Info_SetValueForKey(userinfo[0], "name", "UnnamedQ3", sizeof(userinfo[0]));

#ifdef HUFFNETWORK
		huffcrc = HUFFCRC_QUAKE3;
#endif
	}
	else if (*(Cmd_Argv(0)+7) == '\\')
	{	//DP has the userinfo attached directly to the end of the connect command
		if (!sv_listen_dp.value)
		{
			if (!sv_listen_nq.value)
				SV_RejectMessage (SCP_DARKPLACES6, "Server is not accepting darkplaces clients at this time.\n", version_string());
			Con_TPrintf ("* rejected connect from dp client\n");
			return NULL;
		}
		Q_strncpyz (userinfo[0], net_message.data + 11, sizeof(userinfo[0])-1);

		if (strcmp(Info_ValueForKey(userinfo[0], "protocol"), "darkplaces 3"))
		{
			SV_RejectMessage (SCP_BAD, "Server is %s.\n", version_string());
			Con_TPrintf ("* rejected connect from incompatible client\n");
			return NULL;
		}
		//it's a darkplaces client.

		s = Info_ValueForKey(userinfo[0], "protocols");
		if (svs.netprim.coordsize != 4)
		{	//we allow nq with sv_listen_nq 0...
			//reason: dp is too similar for concerns about unsupported code, while the main reason why we disable nq is because of the lack of challenges
			//(and no, this isn't a way to bypass invalid challenges)
			protocol = SCP_NETQUAKE;
			Con_TPrintf ("* DP without sv_bigcoords 1\n");
		}
		else if (strstr(s, "DP7"))
			protocol = SCP_DARKPLACES7;
		else
			protocol = SCP_DARKPLACES6;

		s = Info_ValueForKey(userinfo[0], "challenge");
		if (!strncmp(s, DISTRIBUTION, strlen(DISTRIBUTION)))
			challenge = atoi(s+strlen(DISTRIBUTION));
		else
			challenge = atoi(s);

		Info_RemoveKey(userinfo[0], "protocol");
		Info_RemoveKey(userinfo[0], "protocols");
		Info_RemoveKey(userinfo[0], "challenge");

		s = Info_ValueForKey(userinfo[0], "name");
		if (!*s)
			Info_SetValueForKey(userinfo[0], "name", "CONNECTING", sizeof(userinfo[0]));

		qport = 0;
	}
	else
	{
		if (atoi(Cmd_Argv(0)+7))
		{
			numssclients = atoi(Cmd_Argv(0)+7);
			if (numssclients<1 || numssclients > MAX_SPLITS)
			{
				SV_RejectMessage (SCP_BAD, "Server is %s.\n", version_string());
				Con_TPrintf ("* rejected connect from broken client\n");
				return NULL;
			}
		}

		version = atoi(Cmd_Argv(1));
		if (version >= 31 && version <= 34)
		{
			numssclients = 1;
			protocol = SCP_QUAKE2;
		}
		else if (version == 3)
		{
			numssclients = 1;
			protocol = SCP_NETQUAKE; //because we can
			if (atoi(Info_ValueForKey(Cmd_Argv(4), "mod")) == 1)
				protocol = SCP_PROQUAKE;
			else if (atoi(Info_ValueForKey(Cmd_Argv(4), "mod")) == 666)
				protocol = SCP_FITZ666;
		}
		else if (version != PROTOCOL_VERSION_QW)
		{
			SV_RejectMessage (SCP_BAD, "Server is protocol version %i, received %i\n", PROTOCOL_VERSION_QW, version);
			Con_TPrintf ("* rejected connect from version %i\n", version);
			return NULL;
		}
		else
			protocol = SCP_QUAKEWORLD;

		qport = atoi(Cmd_Argv(2));

		challenge = atoi(Cmd_Argv(3));

		// note an extra qbyte is needed to replace spectator key
		for (i = 0; i < numssclients; i++)
			Q_strncpyz (userinfo[i], Cmd_Argv(4+i), sizeof(userinfo[i])-1);
	}

	{
		char *banreason = SV_BannedReason(&net_from);
		if (banreason)
		{
			if (*banreason)
				SV_RejectMessage (protocol, "You were banned.\nReason: %s\n", banreason);
			else
				SV_RejectMessage (protocol, "You were banned.\n");
			return NULL;
		}
	}

	if (protocol == SCP_QUAKEWORLD)	//readd?
	{
		if (!sv_listen_qw.value && net_from.type != NA_LOOPBACK)
		{
			SV_RejectMessage (protocol, "QuakeWorld protocols are not permitted on this server.\n");
			Con_TPrintf ("* rejected connect from quakeworld\n");
			return NULL;
		}
	}

	if (sv_banproxies.ival)
	{
		//FIXME: allow them to spectate but not join
		if (*Info_ValueForKey(userinfo[0], "*qwfwd"))
		{
			SV_RejectMessage (protocol, "Proxies are not permitted on this server.\n");
			Con_TPrintf ("* rejected connect from qwfwd proxy\n");
			return NULL;
		}
		if (*Info_ValueForKey(userinfo[0], "Qizmo"))
		{
			SV_RejectMessage (protocol, "Proxies are not permitted on this server.\n");
			Con_TPrintf ("* rejected connect from qizmo proxy\n");
			return NULL;
		}
		if (*Info_ValueForKey(userinfo[0], "*qtv"))
		{
			SV_RejectMessage (protocol, "Proxies are not permitted on this server.\n");
			Con_TPrintf ("* rejected connect from qtv proxy (udp)\n");
			return NULL;
		}
	}

	while(!msg_badread)
	{
		Cmd_TokenizeString(MSG_ReadStringLine(), false, false);
		switch(Q_atoi(Cmd_Argv(0)))
		{
		case PROTOCOL_VERSION_FTE:
			if (protocol == SCP_QUAKEWORLD)
			{
				protextsupported = Q_atoi(Cmd_Argv(1));
				Con_DPrintf("Client supports 0x%x fte extensions\n", protextsupported);
			}
			break;
		case PROTOCOL_VERSION_FTE2:
			if (protocol == SCP_QUAKEWORLD)
			{
				protextsupported2 = Q_atoi(Cmd_Argv(1));
				Con_DPrintf("Client supports 0x%x fte2 extensions\n", protextsupported2);
			}
			break;
		case PROTOCOL_VERSION_HUFFMAN:
#ifdef HUFFNETWORK
			huffcrc = Q_atoi(Cmd_Argv(1));
			Con_DPrintf("Client supports huffman compression. crc 0x%x\n", huffcrc);
			if (!net_compress.ival || !Huff_CompressionCRC(huffcrc))
			{
				SV_RejectMessage (protocol, "Compression should not have been enabled.\n");	//buggy/exploiting client. can also happen from timing when changing the setting, but whatever
				Con_TPrintf ("* rejected - bad compression state\n");
				return NULL;
			}
#endif
			break;
		case PROTOCOL_VERSION_FRAGMENT:
			mtu = Q_atoi(Cmd_Argv(1)) & ~7;
			if (mtu < 64)
				mtu = 0;
			Con_DPrintf("Client supports fragmentation. mtu %i.\n", mtu);
			break;
		case PROTOCOL_INFO_GUID:
			Q_strncpyz(guid, Cmd_Argv(1), sizeof(guid));
			Con_DPrintf("GUID %s\n", Cmd_Argv(1));
			break;
		}
	}
	msg_badread=false;
	
	/*allow_splitscreen applies only to non-local clients, so that clients have only one enabler*/
	if (!sv_allow_splitscreen.ival && net_from.type != NA_LOOPBACK)
		numssclients = 1;

	if (!(protextsupported & PEXT_SPLITSCREEN))
		numssclients = 1;

	if (sv.msgfromdemo || net_from.type == NA_LOOPBACK)	//normal rules don't apply
		i=0;
	else
	{
	// see if the challenge is valid
		if (!SV_ChallengePasses(challenge))
		{
			SV_RejectMessage (protocol, "Bad challenge.\n");
			return NULL;
		}
	}

	if (MSV_ClusterLogin(guid, userinfo[0], sizeof(userinfo[0])))
		return NULL;

	// check for password or spectator_password
	if (svprogfuncs)
	{
		s = Info_ValueForKey (userinfo[0], "spectator");
		if (s[0] && strcmp(s, "0"))
		{
			if (spectator_password.string[0] &&
				stricmp(spectator_password.string, "none") &&
				strcmp(spectator_password.string, s) )
			{	// failed
				Con_TPrintf ("%s:spectator password failed\n", NET_AdrToString (adrbuf, sizeof(adrbuf), &net_from));
				SV_RejectMessage (protocol, "requires a spectator password\n\n");
				return NULL;
			}
			Info_RemoveKey (userinfo[0], "spectator"); // remove key
			Info_SetValueForStarKey (userinfo[0], "*spectator", "1", sizeof(userinfo[0]));
			spectator = true;
		}
		else
		{
			s = Info_ValueForKey (userinfo[0], "password");
			if (password.string[0] &&
				stricmp(password.string, "none") &&
				strcmp(password.string, s) )
			{
				Con_TPrintf ("%s:password failed\n", NET_AdrToString (adrbuf, sizeof(adrbuf), &net_from));
				SV_RejectMessage (protocol, "server requires a password\n\n");
				return NULL;
			}
			spectator = false;
			Info_RemoveKey (userinfo[0], "password"); // remove passwd
			Info_RemoveKey (userinfo[0], "*spectator"); // remove key
		}
	}
	else
		spectator = false;//q2 does all of it's checks internally, and deals with spectator ship too

	adr = net_from;
	nextuserid++;	// so every client gets a unique id

	newcl = &temp;
	memset (newcl, 0, sizeof(client_t));


	if (protocol >= SCP_NETQUAKE && protocol < SCP_DARKPLACES6)
	{	//NQ protocols lack stuff like protocol extensions.
		//its the wild west where nothing is known about the client and everything breaks.
		switch(sv_protocol_nq.ival)
		{
		case RMQ_PROTOCOL_VERSION:
		case FITZ_PROTOCOL_VERSION:
			protocol = SCP_FITZ666;
			break;
		case 15:
			//don't trip up on proquake's angle change.
			protocol = (protocol==SCP_PROQUAKE)?SCP_PROQUAKE:SCP_NETQUAKE;
			break;
		case DP6_PROTOCOL_VERSION:
			protocol = SCP_DARKPLACES6;
			break;
		case DP7_PROTOCOL_VERSION:
			protocol = SCP_DARKPLACES7;
			break;
		default:
			Con_Printf("sv_protocol_nq set incorrectly\n");
		case 0:
			//change nothing
			break;
		}
	}

	newcl->userid = nextuserid;
	newcl->fteprotocolextensions = protextsupported;
	newcl->fteprotocolextensions2 = protextsupported2;
	newcl->protocol = protocol;
	Q_strncpyz(newcl->guid, guid, sizeof(newcl->guid));

	if (sv.msgfromdemo)
		newcl->wasrecorded = true;

	// works properly
	if (!sv_highchars.value)
	{
		qbyte *p, *q;

		for (p = (qbyte *)newcl->userinfo, q = (qbyte *)userinfo;
			*q && p < (qbyte *)newcl->userinfo + sizeof(newcl->userinfo)-1; q++)
			if (*q > 31 && *q <= 127)
				*p++ = *q;
	}
	else
		Q_strncpyS (newcl->userinfo, userinfo[0], sizeof(newcl->userinfo)-1);
	newcl->userinfo[sizeof(newcl->userinfo)-1] = '\0';

//	Con_TPrintf("%s:%s:connect\n", sv.name, NET_AdrToString (adrbuf, sizeof(adrbuf), &adr));

	// if there is already a slot for this ip, drop it
	for (i=0,cl=svs.clients ; i<svs.allocated_client_slots ; i++,cl++)
	{
		if (cl->state == cs_free || cl->state == cs_loadzombie)
			continue;
		if (NET_CompareBaseAdr (&adr, &cl->netchan.remote_address)
			&& ( cl->netchan.qport == qport
			|| adr.port == cl->netchan.remote_address.port ))
		{
			if (cl->state == cs_connected)
			{
				if (cl->protocol != protocol)
					Con_TPrintf("%s: diff prot connect\n", NET_AdrToString (adrbuf, sizeof(adrbuf), &adr));
				else
					Con_TPrintf("%s:dup connect\n", NET_AdrToString (adrbuf, sizeof(adrbuf), &adr));
			}
			/*else if (cl->state == cs_zombie)
			{
				Con_Printf ("%s:reconnect\n", NET_AdrToString (adrbuf, sizeof(adrbuf), &adr));
			}*/
			else
				Con_TPrintf ("%s:%s:reconnect\n", sv.name, NET_AdrToString (adrbuf, sizeof(adrbuf), &adr));
			//silently drop the old connection, without causing the old client to get a disconnect or anything stupid like that.
			cl->protocol = SCP_BAD;
			SV_DropClient (cl);
			cl->protocol = protocol;
			break;
		}
	}

	name = Info_ValueForKey (temp.userinfo, "name");

	if (sv.world.worldmodel && protocol == SCP_QUAKEWORLD &&!atoi(Info_ValueForKey (temp.userinfo, "iknow")))
	{
		if (sv.world.worldmodel->fromgame == fg_halflife && !(newcl->fteprotocolextensions & PEXT_HLBSP))
		{
			if (atof(Info_ValueForKey (temp.userinfo, "*FuhQuake")) < 0.3)
			{
				SV_RejectMessage (protocol, "The server is using a halflife level and we don't think your client supports this\nuse 'setinfo iknow 1' to ignore this check\nYou can go to "ENGINEWEBSITE" to get a compatible client\n\nYou may need to enable an option\n\n");
//				Con_Printf("player %s was dropped due to incompatible client\n", name);
//				return;
			}
		}
#ifdef PEXT_Q2BSP
		else if (sv.world.worldmodel->fromgame == fg_quake2 && !(newcl->fteprotocolextensions & PEXT_Q2BSP))
		{
			SV_RejectMessage (protocol, "The server is using a quake 2 level and we don't think your client supports this\nuse 'setinfo iknow 1' to ignore this check\nYou can go to "ENGINEWEBSITE" to get a compatible client\n\nYou may need to enable an option\n\n");
//			Con_Printf("player %s was dropped due to incompatible client\n", name);
//			return;
		}
#endif
#ifdef PEXT_Q3BSP
		else if (sv.world.worldmodel->fromgame == fg_quake3 && !(newcl->fteprotocolextensions & PEXT_Q3BSP))
		{
			SV_RejectMessage (protocol, "The server is using a quake 3 level and we don't think your client supports this\nuse 'setinfo iknow 1' to ignore this check\nYou can go to "ENGINEWEBSITE" to get a compatible client\n\nYou may need to enable an option\n\n");
//			Con_Printf("player %s was dropped due to incompatible client\n", name);
//			return;
		}
#endif
	}

	SV_FixupName(name, temp.namebuf, sizeof(temp.namebuf));
	name = temp.namebuf;

	deleetstring(basic, name);
	if (!*basic || strstr(basic, "console"))
		name = "unnamed";	//have fun dudes.

	// count up the clients and spectators
	clients = 0;
	spectators = 0;
	newcl = NULL;
	if (!sv.allocated_client_slots)
	{
		Con_Printf("Apparently, there are no client slots allocated. This shouldn't be happening\n");
		return NULL;
	}
	for (i=0,cl=svs.clients ; i<sv.allocated_client_slots ; i++,cl++)
	{
		if (cl->state == cs_free)
			continue;
		if (cl->spectator)
			spectators++;
		else
			clients++;

		if (cl->state == cs_loadzombie)
		{
			if (!newcl)
			{
				if (((!strcmp(cl->name, name) || !*cl->name) && (!*cl->guid || !strcmp(guid, cl->guid))) || sv.allocated_client_slots <= 1)	//named, or first come first serve.
				{
					if (cl->istobeloaded)
						Con_DPrintf("%s:Using loadzombie\n", sv.name);
					else
						Con_DPrintf("%s:Using parmzombie\n", sv.name);
					newcl = cl;
					preserveparms = true;
					temp.istobeloaded = cl->istobeloaded;
					memcpy(temp.spawn_parms, cl->spawn_parms, sizeof(temp.spawn_parms));
					if (cl->userid)
						temp.userid = cl->userid;
					break;
				}
			}
		}
	}

	if (!newcl)	//client has no slot. It's possible to bipass this if server is loading a game. (or a duplicated qsocket)
	{
		if (SSV_IsSubServer())
		{
			SV_RejectMessage (protocol, "Direct connections are not permitted.\n");
			return NULL;
		}

		/*single player logic*/
		if (sv.allocated_client_slots == 1 && net_from.type == NA_LOOPBACK)
			if (svs.clients[0].state >= cs_connected)
			{
				Con_Printf("Kicking %s to make space for local client\n", svs.clients[0].name);
				SV_DropClient(svs.clients);
			}

		// if at server limits, refuse connection
		if ( maxclients.ival > MAX_CLIENTS )
			Cvar_SetValue (&maxclients, MAX_CLIENTS);
		if (maxspectators.ival > MAX_CLIENTS)
			Cvar_SetValue (&maxspectators, MAX_CLIENTS);

		// find a free client slot
		for (i=0; i<sv.allocated_client_slots ; i++)
		{
			cl=svs.clients+i;
			if (cl->state == cs_free)
			{
				newcl = cl;
				break;
			}
		}

		/*only q1/h2 has a maxclients/maxspectators separation. q2 or q3 the gamecode enforces any such clienttype limits*/
		if (svprogfuncs)
		{
			if (spectator && spectators >= maxspectators.ival)
				redirect = true;
			if (!spectator && clients >= maxclients.ival)
				redirect = true;
		}
		else
		{
			if (clients >= maxclients.ival)
				redirect = true;
		}

		if (redirect)
		{
			extern cvar_t sv_fullredirect;
			if (!*sv_fullredirect.string)
				newcl = NULL;
		}

		if (!newcl)
		{
			if (!svprogfuncs)
			{
				SV_RejectMessage (protocol, "\nserver is full\n\n");
				Con_TPrintf ("%s:full connect\n", NET_AdrToString (adrbuf, sizeof(adrbuf), &adr));
			}
			else
			{
				if (spectator && spectators >= maxspectators.ival)
				{
					SV_RejectMessage (protocol, "\nserver is full (%i of %i spectators)\n\n", spectators, maxspectators.ival);
					Con_TPrintf ("%s:full connect\n", NET_AdrToString (adrbuf, sizeof(adrbuf), &adr));
				}
				else if (!spectator && clients >= maxclients.ival)
					SV_RejectMessage (protocol, "\nserver is full (%i of %i players)\n\n", clients, maxclients.ival);
				else
					SV_RejectMessage (protocol, "\nserver is full (%i of %i connections)\n\n", clients+spectators, sv.allocated_client_slots);
			}
			return NULL;
		}
	}

	//set up the gamecode for this player, optionally drop them here
	edictnum = (newcl-svs.clients)+1;
	switch (svs.gametype)
	{
#ifdef HLSERVER
		//fallthrough
	case GT_HALFLIFE:
		{
			char reject[128];
			if (!SVHL_ClientConnect(newcl, adr, reject))
			{
				SV_RejectMessage(protocol, "%s", reject);
				return NULL;
			}
		}

		break;
#endif


#ifdef VM_Q1
	case GT_Q1QVM:
#endif
#ifdef VM_LUA
	case GT_LUA:
#endif
	case GT_PROGS:
		if (protocol == SCP_QUAKE2)
		{
			SV_RejectMessage(protocol, "This is a Quake server.");
			Con_DPrintf ("* Rejected q2 client.\n");
			return NULL;
		}

		if (svprogfuncs)
			ent = EDICT_NUM(svprogfuncs, edictnum);
		else
			ent = NULL;
#ifdef Q2SERVER
		temp.q2edict = NULL;
#endif
		temp.edict = ent;

		{
			const char *reject = SV_CheckRejectConnection(&adr, userinfo[0], protocol, protextsupported, protextsupported2, guid);
			if (reject)
			{
				SV_RejectMessage(protocol, "%s", reject);
				Con_DPrintf ("* Game rejected a connection.\n");
				return NULL;
			}
		}

		break;

#ifdef Q2SERVER
	case GT_QUAKE2:
		if (protocol != SCP_QUAKE2)
		{
			SV_RejectMessage(protocol, "This is a Quake2 server.");
			Con_DPrintf ("* Rejected non-q2 client.\n");
			return NULL;
		}
		q2ent = Q2EDICT_NUM(edictnum);
		temp.edict = NULL;
		temp.q2edict = q2ent;

		if (!ge->ClientConnect(q2ent, temp.userinfo))
		{
			const char *reject = Info_ValueForKey(temp.userinfo, "rejmsg");
			if (*reject)
				SV_RejectMessage(protocol, "%s\nConnection Refused.", reject);
			else
				SV_RejectMessage(protocol, "Connection Refused.");
			Con_DPrintf ("Game rejected a connection.\n");
			return NULL;
		}

		ge->ClientUserinfoChanged(q2ent, temp.userinfo);


		break;
#endif
	default:
		Sys_Error("Bad svs.gametype in SVC_DirectConnect");
		break;
	}

	if (newcl->frameunion.frames)
	{
		Con_Printf("Client frame info was set\n");
		Z_Free(newcl->frameunion.frames);
	}

	temp.name = newcl->name;
	temp.team = newcl->team;
	*newcl = temp;

	newcl->challenge = challenge;
	newcl->zquake_extensions = atoi(Info_ValueForKey(newcl->userinfo, "*z_ext"));
	if (*Info_ValueForKey(newcl->userinfo, "*fuhquake"))	//fuhquake doesn't claim to support z_ext but does look at our z_ext serverinfo key.
	{														//so switch on the bits that it should be sending.
		newcl->zquake_extensions |= Z_EXT_PM_TYPE|Z_EXT_PM_TYPE_NEW;
	}
	newcl->zquake_extensions &= SUPPORTED_Z_EXTENSIONS;

	//ezquake's download mechanism is so smegging buggy.
	//its causing far far far too many connectivity issues. seriously. its beyond a joke. I cannot stress that enough.
	//as the client needs to listen for the serverinfo to know which extensions will actually be used (yay demos), we can just forget that it supports svc-level extensions, at least for anything that isn't spammed via clc_move etc before the serverinfo.
	s = Info_ValueForKey(newcl->userinfo, "*client");
	if (!strncmp(s, "ezQuake", 7) && (newcl->fteprotocolextensions & PEXT_CHUNKEDDOWNLOADS))
	{
		if (pext_ezquake_nochunks.ival)
		{
			newcl->fteprotocolextensions &= ~PEXT_CHUNKEDDOWNLOADS;
			Con_TPrintf("%s: ignoring ezquake chunked downloads extension.\n", NET_AdrToString (adrbuf, sizeof(adrbuf), &adr));
		}
	}

	Netchan_Setup (NS_SERVER, &newcl->netchan, &adr, qport);

#ifdef HUFFNETWORK
	if (huffcrc)
		newcl->netchan.compresstable = Huff_CompressionCRC(huffcrc);
	else
#endif
		newcl->netchan.compresstable = NULL;
	if (mtu >= 64)
	{
		newcl->netchan.fragmentsize = mtu;
		newcl->netchan.message.maxsize = sizeof(newcl->netchan.message_buf);
	}

	newcl->protocol = protocol;
#ifdef NQPROT
	newcl->netchan.isnqprotocol = ISNQCLIENT(newcl);
#endif

	newcl->state = cs_connected;

#ifdef Q3SERVER
	newcl->gamestatesequence = -1;
#endif
	newcl->datagram.allowoverflow = true;
	newcl->datagram.data = newcl->datagram_buf;
	if (mtu >= 64)
		newcl->datagram.maxsize = sizeof(newcl->datagram_buf);
	else
		newcl->datagram.maxsize = MAX_DATAGRAM;

	newcl->netchan.netprim = svs.netprim;
	newcl->datagram.prim = svs.netprim;
	newcl->netchan.message.prim = svs.netprim;

	SV_ClientProtocolExtensionsChanged(newcl);

	// spectator mode can ONLY be set at join time
	newcl->spectator = spectator;

	newcl->realip_ping = (((rand()^(rand()<<8) ^ *(int*)&realtime)&0xffffff)<<8) | (newcl-svs.clients);

	if (newcl->istobeloaded && newcl->edict)
		newcl->playerclass = newcl->edict->xv->playerclass;

	// parse some info from the info strings
	SV_ExtractFromUserinfo (newcl, true);

	// JACK: Init the floodprot stuff.
	newcl->floodprotmessage = 0.0;
	newcl->lastspoke = 0.0;
	newcl->lockedtill = 0;

#ifdef SVRANKING
	if (svs.demorecording || (svs.demoplayback && newcl->wasrecorded))	//disable rankings. Could cock things up.
	{
		SV_GetNewSpawnParms(newcl);
	}
	else
	{
//rankid is figured out in extract from user info
		if (!newcl->rankid)	//failed to get a userid
		{
			if (rank_needlogin.value)
			{
				SV_RejectMessage (protocol, "Bad password/username\nThis server requires logins. Please see the serverinfo for website and info on how to register.\n");
				newcl->state = cs_free;
				return NULL;
			}

//			SV_OutOfBandPrintf (isquake2client, adr, "\nWARNING: You have not got a place on the ranking system, probably because a user with the same name has already connected and your pwds differ.\n\n");

			if (!preserveparms)
				SV_GetNewSpawnParms(newcl);
		}
		else
		{
			rankstats_t rs;
			if (!Rank_GetPlayerStats(newcl->rankid, &rs))
			{
				SV_RejectMessage (protocol, "Rankings/Account system failed\n");
				Con_TPrintf("banned player %s is trying to connect\n", newcl->name);
				newcl->name[0] = 0;
				memset (newcl->userinfo, 0, sizeof(newcl->userinfo));
				newcl->state = cs_free;
				return NULL;
			}

			if (rs.flags1 & RANK_MUTED)
			{
				SV_BroadcastTPrintf(PRINT_MEDIUM, "%s is muted (still)\n", newcl->name);
			}
			if (rs.flags1 & RANK_CUFFED)
			{
				SV_BroadcastTPrintf(PRINT_LOW, "%s is now cuffed permanently\n", newcl->name);
			}
			if (rs.flags1 & RANK_CRIPPLED)
			{
				SV_BroadcastTPrintf(PRINT_HIGH, "%s is still crippled\n", newcl->name);
			}

			if (rs.timeonserver)
			{
				if (preserveparms)
				{	//do nothing.
				}
				else if (sv_resetparms.value)
				{
					SV_GetNewSpawnParms(newcl);
				}
				else
				{
					extern cvar_t rank_parms_first, rank_parms_last;
					for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
					{
						if (i < NUM_RANK_SPAWN_PARMS && i >= rank_parms_first.ival && i <= rank_parms_last.ival)
							newcl->spawn_parms[i] = rs.parm[i];
						else
							newcl->spawn_parms[i] = 0;
					}
				}

				if (rs.timeonserver > 3*60)	//woo. Ages.
					s = va(langtext("Welcome back %s. You have previously spent %i:%i hours connected\n", newcl->language), newcl->name, (int)(rs.timeonserver/(60*60)), (int)((int)(rs.timeonserver/60)%(60)));
				else	//measure this guy in minuites.
					s = va(langtext("Welcome back %s. You have previously spent %i mins connected\n", newcl->language), newcl->name, (int)(rs.timeonserver/60));

				SV_OutOfBandPrintf (protocol == SCP_QUAKE2, &adr, s);
			}
			else if (!preserveparms)
			{
				SV_GetNewSpawnParms(newcl);

				SV_OutOfBandTPrintf (protocol == SCP_QUAKE2, &adr, newcl->language, "Welcome %s. Your time on this server is being logged and ranked\n", newcl->name, (int)rs.timeonserver);
			}
			//else loaded players already have their initial parms set
		}
	}
#else
	// call the progs to get default spawn parms for the new client
	if (!preserveparms)
	{
		SV_GetNewSpawnParms(newcl);
	}
#endif


	if (!newcl->wasrecorded)
	{
		SV_AcceptMessage (protocol);

		newcl->state = cs_free;
		if (ISNQCLIENT(newcl))
		{
			//FIXME: we should delay this until we actually have a name, because right now they'll be called unnamed or unconnected or something
			SV_BroadcastPrintf(PRINT_LOW, "New client connected\n");
		}
		else if (redirect)
		{
		}
		else if (newcl->spectator)
		{
			SV_BroadcastTPrintf(PRINT_LOW, "spectator %s connected\n", newcl->name);
//			Con_Printf ("Spectator %s connected\n", newcl->name);
		}
		else
		{
			SV_BroadcastTPrintf(PRINT_LOW, "client %s connected\n", newcl->name);
//			Con_DPrintf ("Client %s connected\n", newcl->name);
		}
		newcl->state = cs_connected;
	}
	else
	{
		if (newcl->spectator)
		{
			SV_BroadcastTPrintf(PRINT_LOW, "recorded spectator %s connected\n", newcl->name);
//			Con_Printf ("Recorded spectator %s connected\n", newcl->name);
		}
		else
		{
			SV_BroadcastTPrintf(PRINT_LOW, "recorded client %s connected\n", newcl->name);
//			Con_DPrintf ("Recorded client %s connected\n", newcl->name);
		}
	}
	newcl->sendinfo = true;

	if (redirect)
		numssclients = 1;
	else
	{
		for (i = 0; i < sizeof(sv_motd)/sizeof(sv_motd[0]); i++)
		{
			if (*sv_motd[i].string)
				SV_ClientPrintf(newcl, PRINT_CHAT, "%s\n", sv_motd[i].string);
		}
	}

	SV_CheckRecentCrashes(newcl);

#ifdef VOICECHAT
	SV_VoiceInitClient(newcl);
#endif

	SV_EvaluatePenalties(newcl);

	if (newcl->penalties & BAN_SPECONLY)
	{
		if (spectators >= maxspectators.ival)
			newcl->drop = true;	//oops.
		newcl->spectator = spectator = true;
		Info_SetValueForStarKey (cl->userinfo, "*spectator", "1", sizeof(cl->userinfo));
	}

	newcl->fteprotocolextensions &= ~PEXT_SPLITSCREEN;
	for (clients = 1; clients < numssclients; clients++)
	{
		for (i=0,cl=svs.clients ; i<sv.allocated_client_slots ; i++,cl++)
		{
			if (cl->state == cs_free)
			{
				break;
			}
		}
		if (i == sv.allocated_client_slots)
			break;

		newcl->fteprotocolextensions |= PEXT_SPLITSCREEN;

		temp.frameunion.frames = cl->frameunion.frames;	//don't touch these.
		temp.edict = cl->edict;
		memcpy(cl, newcl, sizeof(client_t));
		Q_strncatz(cl->guid, va("%s:%i", guid, clients), sizeof(cl->guid));
		cl->name = cl->namebuf;
		cl->team = cl->teambuf;

		nextuserid++;	// so every client gets a unique id
		cl->userid = nextuserid;

		cl->playerclass = 0;
		cl->frameunion.frames = temp.frameunion.frames;
		cl->pendingentbits = NULL;
		cl->edict = EDICT_NUM(svprogfuncs, i+1);

		cl->fteprotocolextensions |= PEXT_SPLITSCREEN;

		if (newcl->controller)
		{
			newcl->controller->controlled = cl;
			newcl->controller = cl;
		}
		else
		{
			newcl->controlled = cl;
			newcl->controller = cl;
		}
		cl->controller = newcl;
		cl->controlled = NULL;

		Q_strncpyS (cl->userinfo, userinfo[clients], sizeof(cl->userinfo)-1);
		cl->userinfo[sizeof(cl->userinfo)-1] = '\0';

		if (spectator)
		{
			Info_RemoveKey (cl->userinfo, "spectator");
			Info_SetValueForStarKey (cl->userinfo, "*spectator", "1", sizeof(cl->userinfo));
		}
		else
			Info_RemoveKey (cl->userinfo, "*spectator");

		SV_ExtractFromUserinfo (cl, true);

//		if (!preserveparms)
			SV_GetNewSpawnParms(cl);

		SV_EvaluatePenalties(cl);
	}
	newcl->controller = NULL;

	if (!redirect)
	{
		Sys_ServerActivity();

		PIN_ShowMessages(newcl);
	}

	if (ISNQCLIENT(newcl))
	{
		newcl->netchan.message.maxsize = sizeof(newcl->netchan.message_buf);
		host_client = newcl;
		SVNQ_New_f();
	}

	newcl->redirect = redirect;

#ifdef SUBSERVERS
	SSV_SavePlayerStats(newcl, 0);
#endif

	return newcl;
}


int Rcon_Validate (void)
{
	if (!strlen (rcon_password.string))
		return 0;

	if (strcmp (Cmd_Argv(1), rcon_password.string) )
		return 0;

	return 1;
}

/*
===============
SVC_RemoteCommand

A client issued an rcon command.
Shift down the remaining args
Redirect all printfs
===============
*/
void SVC_RemoteCommand (void)
{
	int		i;
	char	remaining[1024];
	char	adr[MAX_ADR_SIZE];

	{
		char *br = SV_BannedReason(&net_from);
		if (br)
		{
			Con_TPrintf ("Rcon from banned ip %s: %s\n", NET_AdrToString (adr, sizeof(adr), &net_from), br);
			return;
		}
	}

	if (!Rcon_Validate ())
	{
/*
#ifdef SVRANKING
		if (cmd_allowaccess.value)	//try and find a username, match the numeric password
		{
			int rid;
			char *s = Cmd_Argv(1);
			char *colon=NULL, *c2;
			rankstats_t stats;
			c2=s;
			for(;;)
			{
				c2 = strchr(c2, ':');
				if (!c2)
					break;
				colon = c2;
				c2++;
			}
			if (colon)	//oh, could this be a specific username?
			{
				*colon = '\0';
				colon++;
				rid = Rank_GetPlayerID(NULL, s, atoi(colon), false, true);
				if (rid)
				{
					if (!Rank_GetPlayerStats(rid, &stats))
						return;


					Con_TPrintf ("Rcon from %s:\n%s\n"
						, NET_AdrToString (adr, sizeof(adr), &net_from), net_message.data+4);

					SV_BeginRedirect (RD_PACKET_LOG, svs.language);

					remaining[0] = 0;

					for (i=2 ; i<Cmd_Argc() ; i++)
					{
						if (strlen(remaining)+strlen(Cmd_Argv(i))>=sizeof(remaining)-2)
						{
							Con_TPrintf("Rcon was too long\n");
							SV_EndRedirect ();
							Con_TPrintf ("Rcon from %s:\n%s\n"
								, NET_AdrToString (adr, sizeof(adr), &net_from), "Was too long - possible buffer overflow attempt");
							return;
						}
						strcat (remaining, Cmd_Argv(i) );
						strcat (remaining, " ");
					}

					Cmd_ExecuteString (remaining, stats.trustlevel);

					SV_EndRedirect ();
					return;
				}
			}
		}
#endif
*/

		Log_String(LOG_RCON, va("Bad rcon from %s:\t%s\n"
			, NET_AdrToString (adr, sizeof(adr), &net_from), net_message.data+4));

		Con_TPrintf ("Bad rcon from %s:\t%s\n"
			, NET_AdrToString (adr, sizeof(adr), &net_from), net_message.data+4);

		SV_BeginRedirect (RD_PACKET, svs.language);

		Con_TPrintf ("Bad rcon_password. Passwords might be logged. Be careful.\n");
	}
	else
	{
		//make sure stuff is flushed
		cmd_blockwait = true;
		Cbuf_ExecuteLevel(rcon_level.ival);
		cmd_blockwait = false;

		Log_String(LOG_RCON, va("\n\nRcon from %s:\t%s\n"
			, NET_AdrToString (adr, sizeof(adr), &net_from), net_message.data+4));

		Con_TPrintf ("Rcon from %s:\t%s\n"
			, NET_AdrToString (adr, sizeof(adr), &net_from), net_message.data+4);

		SV_BeginRedirect (RD_PACKET_LOG, svs.language);

		remaining[0] = 0;

		for (i=2 ; i<Cmd_Argc() ; i++)
		{
			if (strlen(remaining)+strlen(Cmd_Argv(i))>=sizeof(remaining)-2)
			{
				Con_TPrintf("Rcon was too long\n");
				SV_EndRedirect ();
				Con_TPrintf ("Rcon from %s:\t%s\n"
					, NET_AdrToString (adr, sizeof(adr), &net_from), "Was too long - possible buffer overflow attempt");
				return;
			}
			Q_strncatz(remaining, Cmd_Argv(i), sizeof(remaining));
			Q_strncatz(remaining, " ", sizeof(remaining));
		}

		//make sure the wait command can't be used to fuck up our logs.
		cmd_blockwait = true;
		Cbuf_AddText(remaining, rcon_level.ival);
		Cbuf_ExecuteLevel(rcon_level.ival);
		cmd_blockwait = false;
	}

	SV_EndRedirect ();
}

void SVC_RealIP (void)
{
	unsigned int slotnum;
	int cookie;
	char *banreason;
	char adr[MAX_ADR_SIZE];

	slotnum = atoi(Cmd_Argv(1));
	cookie = atoi(Cmd_Argv(2));

	if (slotnum >= svs.allocated_client_slots)
	{
		//a malitious user
		return;
	}

	if (cookie != svs.clients[slotnum].realip_num)
	{
		//could be someone trying to kick someone else
		//so we can't kick, as much as we might like to.
		return;
	}

	if (svs.clients[slotnum].realip_status)
		return;

	if (NET_AddressSmellsFunny(&net_from))
	{
		Con_TPrintf("funny realip address: %s, ", NET_AdrToString(adr, sizeof(adr), &net_from));
		Con_TPrintf("proxy address: %s\n", NET_AdrToString(adr, sizeof(adr), &svs.clients[slotnum].netchan.remote_address));
		return;
	}

	banreason = SV_BannedReason(&net_from);
	if (banreason)
	{
		Con_TPrintf("%s has a banned realip\n", svs.clients[slotnum].name);
		if (*banreason)
			SV_ClientTPrintf(&svs.clients[slotnum], PRINT_CHAT, "You were banned.\nReason: %s\n", banreason);
		else
			SV_ClientTPrintf(&svs.clients[slotnum], PRINT_CHAT, "You were banned.\n");
		SV_DropClient(&svs.clients[slotnum]);
		return;
	}

	svs.clients[slotnum].realip_status = 1;
	svs.clients[slotnum].realip = net_from;
}

void SVC_ACK (void)
{
	int slotnum;
	char adr[MAX_ADR_SIZE];

	for (slotnum = 0; slotnum < svs.allocated_client_slots; slotnum++)
	{
		if (svs.clients[slotnum].state)
		{
			if (svs.clients[slotnum].realip_status == 1 && NET_CompareAdr(&svs.clients[slotnum].realip, &net_from))
			{
				if (!*Cmd_Argv(1))
					svs.clients[slotnum].realip_status = 2;
				else if (atoi(Cmd_Argv(1)) == svs.clients[slotnum].realip_ping &&
						atoi(Cmd_Argv(2)) == svs.clients[slotnum].realip_num)
				{
					svs.clients[slotnum].realip_status = 3;
				}
				else
				{
					Netchan_OutOfBandPrint(NS_SERVER, &net_from, "realip not accepted. Please stop hacking.\n");
				}
				return;
			}
		}
	}
	Con_TPrintf ("A2A_ACK from %s\n", NET_AdrToString (adr, sizeof(adr), &net_from));
}

//returns false to block replies
//this is to mitigate wasted bandwidth if we're used as a udp escilation
qboolean SVC_ThrottleInfo (void)
{
#define THROTTLE_PPS 20
	static unsigned int blockuntil;
	unsigned int curtime = Sys_Milliseconds(); 
	unsigned int inc = 1000/THROTTLE_PPS;

	/*don't go too far back*/
	//if (blockuntil < curtime - 1000)
	if (1000 < curtime - blockuntil)
		blockuntil = curtime - 1000;

	/*don't allow it to go beyond curtime or we get issues with the logic above*/
	if (inc > curtime-blockuntil)
		return false;

	blockuntil += inc;
	return true;
}
/*
=================
SV_ConnectionlessPacket

A connectionless packet has four leading 0xff
characters to distinguish it from a game channel.
Clients that are in the game can still send
connectionless packets.
=================
*/
qboolean SV_ConnectionlessPacket (void)
{
	char	*s;
	char	*c;
	char	adr[MAX_ADR_SIZE];

	MSG_BeginReading (svs.netprim);

	if (net_message.cursize >= MAX_QWMSGLEN)	//add a null term in message space
	{
		Con_TPrintf("Oversized packet from %s\n", NET_AdrToString (adr, sizeof(adr), &net_from));
		net_message.cursize=MAX_QWMSGLEN-1;
	}
	net_message.data[net_message.cursize] = '\0';	//terminate it properly. Just in case.

	MSG_ReadLong ();		// skip the -1 marker

	s = MSG_ReadStringLine ();

	Cmd_TokenizeString (s, false, false);

	c = Cmd_Argv(0);

	if (sv_showconnectionlessmessages.ival)
		Con_Printf("%s: %s\n", NET_AdrToString (adr, sizeof(adr), &net_from), s);

	if (!strcmp(c, "ping") || ( c[0] == A2A_PING && (c[1] == 0 || c[1] == '\n')) )
		SVC_Ping ();
	else if (c[0] == A2A_ACK && (c[1] == 0 || c[1] == '\n') )
		SVC_ACK ();
	else if (!strcmp(c,"status"))
	{
		if (SVC_ThrottleInfo())
			SVC_Status ();
	}
	else if (!strcmp(c,"log"))
	{
		if (SVC_ThrottleInfo())
			SVC_Log ();
	}
#ifdef Q2SERVER
	else if (!strcmp(c, "info"))
	{
		if (SVC_ThrottleInfo())
			SVC_InfoQ2 ();
	}
#endif
	else if (!strncmp(c,"connect", 7))
	{
#ifdef Q3SERVER
		if (svs.gametype == GT_QUAKE3)
		{
			SVQ3_DirectConnect();
			return true;
		}

		if (sv_listen_q3.ival)
		{
			if (!strstr(s, "\\name\\"))
			{	//if name isn't in the string, assume they're q3
				//this isn't quite true though, hence the listen check. but users shouldn't be connecting with an empty name anyway. more fool them.
#ifdef HUFFNETWORK
				Huff_DecryptPacket(&net_message, 12);
#endif
				MSG_BeginReading(svs.netprim);
				MSG_ReadLong();
				s = MSG_ReadStringLine();
				Cmd_TokenizeString(s, false, false);
			}
		}
#endif
			if (secure.value)	//FIXME: possible problem for nq clients when enabled
		{
			Netchan_OutOfBandTPrintf (NS_SERVER, &net_from, svs.language, "%c\nThis server requires client validation.\nPlease use the "FULLENGINENAME" validation program\n", A2C_PRINT);
		}
		else
		{
			SVC_DirectConnect ();
			return true;
		}
	}
	else if (!strcmp(c,"\xad\xad\xad\xad""getchallenge"))
	{
		SVC_GetChallenge ();
	}
	else if (!strcmp(c,"getchallenge"))
	{
		SVC_GetChallenge ();
	}
#ifdef NQPROT
	/*for DP*/
	else if (!strcmp(c, "getstatus"))
	{
		if (SVC_ThrottleInfo())
			SVC_GetInfo(Cmd_Args(), true);
	}
	else if (!strcmp(c, "getinfo"))
	{
		if (SVC_ThrottleInfo())
			SVC_GetInfo(Cmd_Args(), false);
	}
#endif
	else if (!strcmp(c, "rcon"))
		SVC_RemoteCommand ();
	else if (!strcmp(c, "realip"))
		SVC_RealIP ();
	else if (!PR_GameCodePacket(net_message.data+4))
	{
		static unsigned int lt;
		unsigned int ct = Sys_Milliseconds();
		if (ct - lt > 5*1000)
		{
			Con_TPrintf ("bad connectionless packet from %s: \"%s\"\n", NET_AdrToString (adr, sizeof(adr), &net_from), c);
			lt = ct;
		}
	}

	return false;
}

#ifdef NQPROT
qboolean SVNQ_ConnectionlessPacket(void)
{
	sizebuf_t sb;
	int header;
	int length;
	int active, i;
	int mod, modver, flags;
	unsigned int passwd;
	char *str;
	char buffer[256], buffer2[256];
	netadr_t localaddr;
	char *banreason;
	if (net_from.type == NA_LOOPBACK)
		return false;

	if (!sv_listen_nq.value || SSV_IsSubServer())
		return false;

	MSG_BeginReading(svs.netprim);
	header = LongSwap(MSG_ReadLong());
	if (!(header & NETFLAG_CTL))
	{
		//this nasty chunk of code is to try to handle challenges with nq's challengeless protocol, by using stringcmds. woo. evil hacks.
		if (sv_listen_nq.ival == 2)
		if ((header & (NETFLAG_DATA|NETFLAG_EOM)) == (NETFLAG_DATA|NETFLAG_EOM))
		{
			int sequence;
			if (SV_BannedReason (&net_from))
				return false;	//just in case.
			sequence = LongSwap(MSG_ReadLong());
			if (sequence <= 1)
			{
				int numnops = 0;
				int numnonnops = 0;
				/*make it at least robust enough to ignore any other stringcmds*/
				while(1)
				{
					switch(MSG_ReadByte())
					{
					case clc_nop:
						numnops++;
						continue;
					case clc_stringcmd:
						numnonnops++;
						if (msg_readcount+17 <= net_message.cursize && !strncmp("challengeconnect ", &net_message.data[msg_readcount], 17))
						{
							client_t *newcl;
							Cmd_TokenizeString(MSG_ReadStringLine(), false, false);
							/*okay, so this is a reliable packet from a client, containing a 'cmd challengeconnect $challenge' response*/
							str = va("connect %i %i %s \"\\name\\unconnected\\mod\\%s\\modver\\%s\\flags\\%s\\password\\%s\"", NQ_NETCHAN_VERSION, 0, Cmd_Argv(1), Cmd_Argv(2), Cmd_Argv(3), Cmd_Argv(4), Cmd_Argv(5));
							Cmd_TokenizeString (str, false, false);

							newcl = SVC_DirectConnect();
							if (newcl)
								newcl->netchan.incoming_reliable_sequence = sequence;

							/*if there is anything else in the packet, we don't actually care. its reliable, so they'll resend*/
							return true;
						}
						else
							MSG_ReadString();
						continue;
					case -1:
						break;
					default:
						numnonnops++;
						break;
					}
					break;
				}

				if (numnops && !numnonnops)
				{
					sb.maxsize = sizeof(buffer);
					sb.data = buffer;

					/*ack it, so dumb proquake clones can actually send the proper packet*/
					SZ_Clear(&sb);
					MSG_WriteLong(&sb, BigLong(NETFLAG_ACK | 8));
					MSG_WriteLong(&sb, sequence);
					NET_SendPacket(NS_SERVER, sb.cursize, sb.data, &net_from);


					/*resend the cmd request, cos if they didn't send it then it must have gotten dropped.
					at this point, we assume its a proquake clone and that it already thinks that we are proquake
					a vanilla client will not start spamming nops until it has received the server info, so its only the proquake clients+clones that will send a nop before a challengeconnect
					unfortunatly we don't know the modver+flags+password any more. I hope its not needed. if it does, server admins will be forced to use sv_listen_nq 1 instead of 2*/
					SZ_Clear(&sb);
					MSG_WriteLong(&sb, 0);
					MSG_WriteLong(&sb, 0);

					MSG_WriteByte(&sb, svc_stufftext);
					MSG_WriteString(&sb, va("cmd challengeconnect %i %i\n", SV_NewChallenge(), 1/*MOD_PROQUAKE*/));

					*(int*)sb.data = BigLong(NETFLAG_UNRELIABLE|sb.cursize);
					NET_SendPacket(NS_SERVER, sb.cursize, sb.data, &net_from);

					return true;
				}
			}
		}
		return false;	//no idea what it is.
	}

	length = header & NETFLAG_LENGTH_MASK;
	if (length != net_message.cursize)
		return false;	//corrupt or not ours

	switch(MSG_ReadByte())
	{
	case CCREQ_CONNECT:
		sb.maxsize = sizeof(buffer);
		sb.data = buffer;
		if (strcmp(MSG_ReadString(), NQ_NETCHAN_GAMENAME))
		{
			SZ_Clear(&sb);
			MSG_WriteLong(&sb, 0);
			MSG_WriteByte(&sb, CCREP_REJECT);
			MSG_WriteString(&sb, "Incorrect game\n");
			*(int*)sb.data = BigLong(NETFLAG_CTL+sb.cursize);
			NET_SendPacket(NS_SERVER, sb.cursize, sb.data, &net_from);
			return false;	//not our game.
		}
		if (MSG_ReadByte() != NQ_NETCHAN_VERSION)
		{
			SZ_Clear(&sb);
			MSG_WriteLong(&sb, 0);
			MSG_WriteByte(&sb, CCREP_REJECT);
			MSG_WriteString(&sb, "Incorrect version\n");
			*(int*)sb.data = BigLong(NETFLAG_CTL+sb.cursize);
			NET_SendPacket(NS_SERVER, sb.cursize, sb.data, &net_from);
			return false;	//not our version...
		}

		banreason = SV_BannedReason (&net_from);
		if (banreason)
		{
			SZ_Clear(&sb);
			MSG_WriteLong(&sb, 0);
			MSG_WriteByte(&sb, CCREP_REJECT);
			MSG_WriteString(&sb, *banreason?va("You are banned: %s\n", banreason):"You are banned\n");
			*(int*)sb.data = BigLong(NETFLAG_CTL+sb.cursize);
			NET_SendPacket(NS_SERVER, sb.cursize, sb.data, &net_from);
			return false;	//not our version...
		}


		mod = MSG_ReadByte();
		modver = MSG_ReadByte();
		flags = MSG_ReadByte();
		passwd = MSG_ReadLong();

		if (!strncmp(MSG_ReadString(), "getchallenge", 12) && (sv_listen_qw.ival || sv_listen_dp.ival))
		{
			/*dual-stack client, supporting either DP or QW protocols*/
			SVC_GetChallenge ();
		}
		else
		{
			if (sv_listen_nq.ival == 2)
			{
				SZ_Clear(&sb);
				MSG_WriteLong(&sb, 0);
				MSG_WriteByte(&sb, CCREP_ACCEPT);
				NET_LocalAddressForRemote(svs.sockets, &net_from, &localaddr, 0);
				MSG_WriteLong(&sb, ShortSwap(localaddr.port));
				MSG_WriteByte(&sb, 1/*MOD_PROQUAKE*/);
				MSG_WriteByte(&sb, 10 * 3.50/*MOD_PROQUAKE_VERSION*/);
				*(int*)sb.data = BigLong(NETFLAG_CTL|sb.cursize);
				NET_SendPacket(NS_SERVER, sb.cursize, sb.data, &net_from);


				SZ_Clear(&sb);
				MSG_WriteLong(&sb, 0);
				MSG_WriteLong(&sb, 0);

				MSG_WriteByte(&sb, svc_stufftext);
				MSG_WriteString(&sb, va("cmd challengeconnect %i %i %i %i %i\n", SV_NewChallenge(), mod, modver, flags, passwd));

				*(int*)sb.data = BigLong(NETFLAG_UNRELIABLE|sb.cursize);
				NET_SendPacket(NS_SERVER, sb.cursize, sb.data, &net_from);
				/*don't worry about repeating, the nop case above will recover it*/
			}
			else
			{
				str = va("connect %i %i %i \"\\name\\unconnected\\mod\\%i\\modver\\%i\\flags\\%i\\password\\%i\"", NQ_NETCHAN_VERSION, 0, SV_NewChallenge(), mod, modver, flags, passwd);
				Cmd_TokenizeString (str, false, false);

				SVC_DirectConnect();
			}
		}
		return true;
	case CCREQ_SERVER_INFO:
		if (SV_BannedReason (&net_from))
			return false;
		if (Q_strcmp (MSG_ReadString(), NQ_NETCHAN_GAMENAME) != 0)
			return false;

		sb.maxsize = sizeof(buffer);
		sb.data = buffer;
		SZ_Clear (&sb);
		// save space for the header, filled in later
		MSG_WriteLong (&sb, 0);
		MSG_WriteByte (&sb, CCREP_SERVER_INFO);
		if (NET_LocalAddressForRemote(svs.sockets, &net_from, &localaddr, 0))
			MSG_WriteString (&sb, NET_AdrToString (buffer2, sizeof(buffer2), &localaddr));
		else
			MSG_WriteString (&sb, "unknown");
		active = 0;
		for (i = 0; i < sv.allocated_client_slots; i++)
			if (svs.clients[i].state)
				active++;
		MSG_WriteString (&sb, hostname.string);
		MSG_WriteString (&sb, sv.name);
		MSG_WriteByte (&sb, active);
		MSG_WriteByte (&sb, maxclients.value);
		MSG_WriteByte (&sb, NQ_NETCHAN_VERSION);
		*(int*)sb.data = BigLong(NETFLAG_CTL+sb.cursize);
		NET_SendPacket(NS_SERVER, sb.cursize, sb.data, &net_from);
		return true;
	case CCREQ_PLAYER_INFO:
		if (SV_BannedReason (&net_from))
			return false;
		/*one request per player, ouch ouch ouch, what will it make of 32 players, I wonder*/
		sb.maxsize = sizeof(buffer);
		sb.data = buffer;
		// save space for the header, filled in later
		SZ_Clear (&sb);
		MSG_WriteLong (&sb, 0);
		{
			unsigned int pno;
			client_t *cl;
			pno = MSG_ReadByte();
			if (pno >= sv.allocated_client_slots)
				break;
			cl = &svs.clients[pno];
			if (cl->state <= cs_zombie)
				break;

			MSG_WriteByte (&sb, CCREP_PLAYER_INFO);
			MSG_WriteByte (&sb, pno);
			MSG_WriteString (&sb, cl->name);
			MSG_WriteLong (&sb, cl->playercolor);
			MSG_WriteLong (&sb, cl->old_frags);
			MSG_WriteLong (&sb, realtime - cl->connection_started);
			MSG_WriteString (&sb, "");	/*player's address, leave blank, don't spam that info as it can result in personal attacks exploits*/
		}
		*(int*)sb.data = BigLong(NETFLAG_CTL+sb.cursize);
		NET_SendPacket(NS_SERVER, sb.cursize, sb.data, &net_from);
		return true;
	case CCREQ_RULE_INFO:
		if (SV_BannedReason (&net_from))
			return false;

		/*lol, nq is evil*/
		sb.maxsize = sizeof(buffer);
		sb.data = buffer;
		// save space for the header, filled in later
		SZ_Clear (&sb);
		MSG_WriteLong (&sb, 0);
		{
			char *rname, *rval, *kname;
			rname = MSG_ReadString();

			if (!*rname)
				rname = Info_KeyForNumber(svs.info, 0);
			else
			{
				int i = 0;
				for(;;)
				{
					kname = Info_KeyForNumber(svs.info, i);
					if (!*kname)
					{
						rname = NULL;
						break;
					}
					i++;
					if (!strcmp(kname, rname))
					{
						rname = Info_KeyForNumber(svs.info, i);
						break;
					}
				}
			}
			rval = Info_ValueForKey(svs.info, rname);
			MSG_WriteByte (&sb, CCREP_RULE_INFO);
			MSG_WriteString (&sb, rname);
			MSG_WriteString (&sb, rval);
		}
		*(int*)sb.data = BigLong(NETFLAG_CTL+sb.cursize);
		NET_SendPacket(NS_SERVER, sb.cursize, sb.data, &net_from);
		return true;
	}
	return false;
}
#endif

/*
==============================================================================

PACKET FILTERING


You can add or remove addresses from the filter list with:

addip <ip>
removeip <ip>

The ip address is specified in dot format, and any unspecified digits will match any value, so you can specify an entire class C network with "addip 192.246.40".

Removeip will only remove an address specified exactly the same way.  You cannot addip a subnet, then removeip a single host.

listip
Prints the current list of filters.

writeip
Dumps "addip <ip>" commands to listip.cfg so it can be execed at a later date.  The filter lists are not saved and restored by default, because I beleive it would cause too much confusion.

filterban <0 or 1>

If 1 (the default), then ip addresses matching the current list will be prohibited from entering the game.  This is the default setting.

If 0, then only addresses matching the list will be allowed.  This lets you easily set up a private game, or a game that only allows players from your local network.


==============================================================================
*/

cvar_t	filterban = CVARD("filterban", "1", "If 0, players will be kicked by default unless there is a rule that allows them. Also affects the default action of addip.");

//send a network packet to a new non-connected client.
//this is to combat tunneling
void SV_OpenRoute_f(void)
{
	netadr_t to;
	char data[64];

	NET_StringToAdr(Cmd_Argv(1), PORT_QWCLIENT, &to);

	sprintf(data, "\xff\xff\xff\xff%c", S2C_CONNECTION);

	Netchan_OutOfBandPrint(NS_SERVER, &to, "hello");
//	NET_SendPacket (strlen(data)+1, data, to);
}

//============================================================================

/*
=================
SV_ReadPackets
=================
*/
void SV_KillExpiredBans(void);
#ifdef SERVER_DEMO_PLAYBACK
//FIMXE: move to header
qboolean SV_GetPacket (void);
#endif
qboolean SV_ReadPackets (float *delay)
{
	int			i;
	client_t	*cl;
	int			qport;
	laggedpacket_t *lp;
	char		*banreason;
	qboolean	received = false;
	int			giveup = 5000; /*we're fucked if we need this to be this high, but at least we can retain some clients if we're really running that slow*/
	int			cookie = 0;

	SV_KillExpiredBans();

	for (i = 0; i < svs.allocated_client_slots; i++)	//fixme: shouldn't we be using svs.allocated_client_slots ?
	{
		cl = &svs.clients[i];
		while (cl->laggedpacket)
		{
			//schedule a wakeup so minping is more consistant
			if (cl->laggedpacket->time > realtime)
			{
				if (*delay > cl->laggedpacket->time - realtime)
					*delay = cl->laggedpacket->time - realtime;
				break;
			}
			else
			{
				lp = cl->laggedpacket;
				cl->laggedpacket = lp->next;
				if (cl->laggedpacket_last == lp)
					cl->laggedpacket_last = lp->next;

				lp->next = svs.free_lagged_packet;
				svs.free_lagged_packet = lp;

				SZ_Clear(&net_message);
				memcpy(net_message.data, lp->data, lp->length);
				net_message.cursize = lp->length;

				net_from = cl->netchan.remote_address;	//not sure if anything depends on this, but lets not screw them up willynilly

				if (ISNQCLIENT(cl))
				{
					if (cl->state >= cs_connected)
					{
						if (NQNetChan_Process(&cl->netchan))
						{
							received++;
							svs.stats.packets++;
							SVNQ_ExecuteClientMessage(cl);
						}
					}
				}
				else
				{
					/*QW*/
					if (Netchan_Process(&cl->netchan))
					{	// this is a valid, sequenced packet, so process it
						received++;
						svs.stats.packets++;
						if (cl->state >= cs_connected)
						{	//make sure they didn't already disconnect
							if (cl->send_message)
								cl->chokecount++;
							else
								cl->send_message = true;	// reply at end of frame

		#ifdef Q2SERVER
							if (cl->protocol == SCP_QUAKE2)
								SVQ2_ExecuteClientMessage(cl);
							else
		#endif
								SV_ExecuteClientMessage (cl);
						}
					}
				}
			}
		}
	}

#ifdef SERVER_DEMO_PLAYBACK
	while (giveup-- > 0 && SV_GetPacket()>=0)
#else
	while (giveup-- > 0 && (cookie=NET_GetPacket (NS_SERVER, cookie)) >= 0)
#endif
	{
		// check for connectionless packet (0xffffffff) first
		if (*(int *)net_message.data == -1)
		{
			banreason = SV_BannedReason (&net_from);
			if (banreason)
			{
				static unsigned int lt;
				unsigned int ct = Sys_Milliseconds();
				if (ct - lt > 5*1000)
				{
					if (*banreason)
						Netchan_OutOfBandTPrintf(NS_SERVER, &net_from, svs.language, "You are banned: %s\n", banreason);
					else
						Netchan_OutOfBandTPrintf(NS_SERVER, &net_from, svs.language, "You are banned\n");
				}
				continue;
			}

			SV_ConnectionlessPacket();
			continue;
		}

#ifdef Q3SERVER
		if (svs.gametype == GT_QUAKE3)
		{
			received++;
			SVQ3_HandleClient();
			continue;
		}
#endif

		// read the qport out of the message so we can fix up
		// stupid address translating routers
		MSG_BeginReading (svs.netprim);
		MSG_ReadLong ();		// sequence number
		MSG_ReadLong ();		// sequence number
		qport = MSG_ReadShort () & 0xffff;

		// check for packets from connected clients
		for (i=0, cl=svs.clients ; i<svs.allocated_client_slots ; i++,cl++)
		{
			if (cl->state == cs_free)
				continue;
			if (!NET_CompareBaseAdr (&net_from, &cl->netchan.remote_address))
				continue;
#ifdef NQPROT
			if (ISNQCLIENT(cl) && cl->netchan.remote_address.port == net_from.port)
			{
				if (cl->state >= cs_connected)
				{
					if (cl->delay > 0)
						goto dominping;

					if (NQNetChan_Process(&cl->netchan))
					{
						received++;
						svs.stats.packets++;
						SVNQ_ExecuteClientMessage(cl);
					}
				}
				break;
			}
#endif

#ifdef Q3SERVER
			if (ISQ3CLIENT(cl))
				continue;
#endif

			if (cl->netchan.qport != qport)
				continue;
			if (cl->netchan.remote_address.port != net_from.port)
			{
				Con_DPrintf ("SV_ReadPackets: fixing up a translated port\n");
				cl->netchan.remote_address.port = net_from.port;
			}

			if (cl->delay > 0)
			{
dominping:
				if (cl->state < cs_connected)
					break;
				if (net_message.cursize > sizeof(svs.free_lagged_packet->data))
				{
					Con_Printf("minping code is screwy\n");
					break;	//drop this packet
				}

				if (!svs.free_lagged_packet)	//kinda nasty
					svs.free_lagged_packet = Z_Malloc(sizeof(*svs.free_lagged_packet));

				if (!cl->laggedpacket)
					cl->laggedpacket_last = cl->laggedpacket = svs.free_lagged_packet;
				else
				{
					cl->laggedpacket_last->next = svs.free_lagged_packet;
					cl->laggedpacket_last = cl->laggedpacket_last->next;
				}
				svs.free_lagged_packet = svs.free_lagged_packet->next;
				cl->laggedpacket_last->next = NULL;

				cl->laggedpacket_last->time = realtime + cl->delay;
				memcpy(cl->laggedpacket_last->data, net_message.data, net_message.cursize);
				cl->laggedpacket_last->length = net_message.cursize;
				break;
			}


			if (Netchan_Process(&cl->netchan))
			{	// this is a valid, sequenced packet, so process it
				received++;
				svs.stats.packets++;
				if (cl->state >= cs_connected)
				{
					if (cl->send_message)
						cl->chokecount++;
					else
						cl->send_message = true;	// reply at end of frame

#ifdef Q2SERVER
					if (cl->protocol == SCP_QUAKE2)
						SVQ2_ExecuteClientMessage(cl);
					else
#endif
						SV_ExecuteClientMessage (cl);
				}
			}
			break;
		}

		if (i != svs.allocated_client_slots)
			continue;

#ifdef Q3SERVER
		if (sv_listen_q3.ival && SVQ3_HandleClient())
		{
			received++;
			continue;
		}
#endif

#ifdef NQPROT
		if (SVNQ_ConnectionlessPacket())
			continue;
#endif
		if (SV_BannedReason (&net_from))
			continue;

		if (NET_WasSpecialPacket(NS_SERVER))
			continue;

		// packet is not from a known client
		if (sv_showconnectionlessmessages.ival)
			Con_Printf ("%s:sequenced packet without connection\n", NET_AdrToString (com_token, sizeof(com_token), &net_from));	//hack: com_token cos we need some random temp buffer.
	}

	return received;
}

/*
==================
SV_CheckTimeouts

If a packet has not been received from a client in timeout.value
seconds, drop the conneciton.

When a client is normally dropped, the client_t goes into a zombie state
for a few seconds to make sure any final reliable message gets resent
if necessary
==================
*/
void SV_CheckTimeouts (void)
{
	int		i;
	client_t	*cl;
	float	droptime;
	int	nclients;

	droptime = realtime - timeout.value;
	nclients = 0;

	for (i=0,cl=svs.clients ; i<svs.allocated_client_slots ; i++,cl++)
	{
		if (cl->state == cs_connected || cl->state == cs_spawned)
		{
			if (!cl->spectator)
				nclients++;
			if (cl->netchan.last_received < droptime && cl->netchan.remote_address.type != NA_LOOPBACK && cl->protocol != SCP_BAD)
			{
				SV_BroadcastTPrintf (PRINT_HIGH, "Client %s timed out\n", cl->name);
				SV_DropClient (cl);
				cl->state = cs_free;	// don't bother with zombie state for local player.
			}
		}

		if (cl->state == cs_zombie && realtime - cl->connection_started > zombietime.value)
			cl->state = cs_free;	// can now be reused

		if (cl->state == cs_loadzombie && realtime - cl->connection_started > zombietime.value)
		{
			if (cl->istobeloaded)
			{
				if (cl->istobeloaded == 1)
				{
					pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, cl->edict);
					PR_ExecuteProgram (svprogfuncs, pr_global_struct->ClientDisconnect);
					if (*cl->name)
						SV_BroadcastTPrintf (PRINT_HIGH, "LoadZombie %s timed out\n", cl->name);
					else
						SV_BroadcastTPrintf (PRINT_HIGH, "LoadZombie timed out\n");
				}
				sv.spawned_client_slots--;

				cl->istobeloaded=false;

				//must go through a zombie phase for 2 secs when the zombie gets removed.
				cl->state = cs_zombie;	// the real zombieness starts now
				cl->connection_started = realtime;
			}
			else
			{
				//no entity, just free them.
#ifdef SUBSERVERS
				SSV_SavePlayerStats(cl, 3);
#endif
				cl->state = cs_free;
				SV_BroadcastTPrintf (PRINT_HIGH, "TransferZombie %s timed out\n", cl->name);
			}
			cl->netchan.remote_address.type = NA_INVALID;	//don't mess up from not knowing their address.
		}
	}
	if ((sv.paused&1) && !nclients)
	{
		// nobody left, unpause the server
		if (SV_TogglePause(NULL))
			SV_BroadcastTPrintf(PRINT_HIGH, "pause released due to empty server\n");
	}
}

/*
===================
SV_GetConsoleCommands

Add them exactly as if they had been typed at the console
===================
*/
void SV_GetConsoleCommands (void)
{
	char	*cmd;

	while (1)
	{
		cmd = Sys_ConsoleInput ();
		if (!cmd)
			break;
		Log_String(LOG_CONSOLE, cmd);
		Cbuf_AddText (cmd, RESTRICT_LOCAL);
	}
}

#define MINDRATE 500
#define MINRATE 500
int SV_RateForClient(client_t *cl)
{
	int rate;
	if (cl->download)
	{
		rate = cl->drate;
		if (sv_maxdrate.ival)
		{
			if (!rate || rate > sv_maxdrate.value)
				rate = sv_maxdrate.value;
			else if (rate < MINDRATE)
				rate = MINDRATE;
		}
		else if (rate >= 1 && rate < MINDRATE)
			rate = MINDRATE;
	}
	else
	{
		rate = cl->rate;
		if (sv_maxrate.ival)
		{
			if (rate > sv_maxrate.value)
				rate = sv_maxrate.value;
			else if (rate < MINRATE)
				rate = MINRATE;
		}
		else if (rate >= 1 && rate < MINRATE)
			rate = MINRATE;
	}

	return rate;
}
/*
===================
SV_CheckVars

===================
*/
void SV_CheckVars (void)
{
	static char *pw, *spw;
	int			v;

	if (password.string == pw && spectator_password.string == spw)
		return;
	pw = password.string;
	spw = spectator_password.string;

	v = 0;
	if (pw && pw[0] && strcmp(pw, "none"))
		v |= 1;
	if (spw && spw[0] && strcmp(spw, "none"))
		v |= 2;

	Con_DPrintf ("Updated needpass.\n");
	if (!v)
		Info_SetValueForKey (svs.info, "needpass", "", MAX_SERVERINFO_STRING);
	else
		Info_SetValueForKey (svs.info, "needpass", va("%i",v), MAX_SERVERINFO_STRING);
}

#ifdef Q2SERVER
void SVQ2_ClearEvents(void)
{
	q2edict_t	*ent;
	int		i;

	for (i=0 ; i<ge->num_edicts ; i++, ent++)
	{
		ent = Q2EDICT_NUM(i);
		// events only last for a single message
		ent->s.event = 0;
	}
}
#endif


/*
==================
SV_Impulse_f

Spawns a client, uses an impulse, uses that clients think then removes the client.
==================
*/
void SV_Impulse_f (void)
{
	int i;
	if (svs.gametype != GT_PROGS)
	{
		Con_Printf("Not supported in this game type\n");
		return;
	}

	for (i = 0; i < sv.allocated_client_slots; i++)
	{
		if (svs.clients[i].state == cs_free)
		{
			break;
		}
	}

	if (i == sv.allocated_client_slots)
	{
		Con_Printf("No empty player slots\n");
		return;
	}
	if (!svprogfuncs)
		return;

	pr_global_struct->time = sv.world.physicstime;

	svs.clients[i].state = cs_connected;

	SV_SetUpClientEdict(&svs.clients[i], svs.clients[i].edict);

	svs.clients[i].edict->v->netname = PR_SetString(svprogfuncs, "Console");

	sv.skipbprintclient = &svs.clients[i];
	pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, svs.clients[i].edict);
	PR_ExecuteProgram (svprogfuncs, pr_global_struct->ClientConnect);
	sv.skipbprintclient = NULL;

	pr_global_struct->time = sv.world.physicstime;
	pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, svs.clients[i].edict);
	PR_ExecuteProgram (svprogfuncs, pr_global_struct->PutClientInServer);
	sv.spawned_client_slots++;

	pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, svs.clients[i].edict);
	PR_ExecuteProgram (svprogfuncs, pr_global_struct->PlayerPreThink);
	pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, svs.clients[i].edict);
	PR_ExecuteProgram (svprogfuncs, svs.clients[i].edict->v->think);
	pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, svs.clients[i].edict);
	PR_ExecuteProgram (svprogfuncs, pr_global_struct->PlayerPostThink);

	svs.clients[i].edict->v->impulse = atoi(Cmd_Argv(1));

	pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, svs.clients[i].edict);
	PR_ExecuteProgram (svprogfuncs, pr_global_struct->PlayerPreThink);
	pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, svs.clients[i].edict);
	PR_ExecuteProgram (svprogfuncs, svs.clients[i].edict->v->think);
	pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, svs.clients[i].edict);
	PR_ExecuteProgram (svprogfuncs, pr_global_struct->PlayerPostThink);

	pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, svs.clients[i].edict);
	PR_ExecuteProgram (svprogfuncs, pr_global_struct->ClientDisconnect);
	sv.spawned_client_slots--;

	svs.clients[i].state = cs_free;
}

static void SV_PauseChanged(void)
{
	int i;
	client_t *cl;
	// send notification to all clients
	for (i=0, cl = svs.clients ; i<svs.allocated_client_slots ; i++, cl++)
	{
		if (!cl->state)
			continue;
		if ((ISQWCLIENT(cl) || ISNQCLIENT(cl)) && !cl->controller)
		{
			ClientReliableWrite_Begin (cl, svc_setpause, 2);
			ClientReliableWrite_Byte (cl, sv.paused!=0);
		}
	}
}

/*
==================
SV_Frame

==================
*/
float SV_Frame (void)
{
	extern cvar_t pr_imitatemvdsv;
	static double	start, end, idletime;
	float oldtime;
	qboolean isidle;
	static int oldpaused;
	float timedelta;
	float delay;

	COM_MainThreadWork();

	start = Sys_DoubleTime ();
	svs.stats.idle += start - end;
	end = start;

	//qw qc uses this for newmis handling
	svs.framenum++;
	if (svs.framenum > 0x10000)
		svs.framenum = 0;

	delay = sv_maxtic.value;

// keep the random time dependent
	rand ();

	if (!sv.gamespeed)
		sv.gamespeed = 1;

#ifndef SERVERONLY
	isidle = !isDedicated && sv.allocated_client_slots == 1 && Key_Dest_Has(~kdm_game) && cls.state == ca_active;
	/*server is effectively paused if there are no clients*/
//	if (sv.spawned_client_slots == 0 && sv.spawned_observer_slots == 0 && (cls.state != ca_connected))
//		isidle = true;
	if ((sv.paused & 4) != (isidle?4:0))
		sv.paused ^= 4;
#endif

	if (oldpaused != sv.paused)
	{
		SV_PauseChanged();
		oldpaused = sv.paused;
	}


	//work out the gamespeed
	if (sv.gamespeed != sv_gamespeed.value)
	{
		char *newspeed;
		sv.gamespeed = sv_gamespeed.value;
		if (sv.gamespeed < 0.1 || sv.gamespeed == 1)
			sv_gamespeed.value = sv.gamespeed = 1;

		if (sv.gamespeed == 1)
			newspeed = "";
		else
			newspeed = va("%g", sv.gamespeed*100);
		Info_SetValueForStarKey(svs.info, "*gamespeed", newspeed, MAX_SERVERINFO_STRING);
		SV_SendServerInfoChange("*gamespeed", newspeed);

		//correct sv.starttime
		sv.starttime = Sys_DoubleTime() - (sv.time/sv.gamespeed);
	}


// decide the simulation time
	{
		oldtime = sv.time;
		sv.time = (Sys_DoubleTime() - sv.starttime)*sv.gamespeed;
		timedelta = sv.time - oldtime;
		if (sv.time < oldtime)
		{
			sv.time = oldtime;	//urm
			timedelta = 0;
		}

		if (isDedicated)
			realtime += sv.time - oldtime;

		if (sv.paused && sv.time > 1.5)
		{
			sv.starttime += (sv.time - oldtime)/sv.gamespeed;	//move the offset
			sv.time = oldtime;	//and keep time as it was.
		}
	}


#ifdef WEBSERVER
	IWebRun();
#endif

	if (sv_master.ival)
	{
		if (sv_masterport.ival)
			SVM_Think(sv_masterport.ival);
		else
			SVM_Think(PORT_QWMASTER);
	}

	{
void SV_MVDStream_Poll(void);
	SV_MVDStream_Poll();
	}

#ifdef PLUGINS
	if (isDedicated)
		Plug_Tick();
#endif

	if (sv.state < ss_active || !sv.world.worldmodel)
	{
#ifdef SUBSERVERS
		if (sv.state == ss_clustermode)
		{
			MSV_PollSlaves();
			isidle = !SV_ReadPackets (&delay);
#ifdef SQL
			PR_SQLCycle();
#endif
			SV_SendClientMessages ();
		}
#endif
#ifndef SERVERONLY
	// check for commands typed to the host
		if (isDedicated)
#endif
		{
			SV_GetConsoleCommands ();
			Cbuf_Execute ();
		}
		return delay;
	}

// check timeouts
	SV_CheckTimeouts ();

	SV_CheckTimer ();

// toggle the log buffer if full
	SV_CheckLog ();

// get packets
	isidle = !SV_ReadPackets (&delay);

	if (pr_imitatemvdsv.ival)
	{
		Cbuf_Execute ();
		if (sv.state < ss_active)	//whoops...
			return delay;
	}

	if (sv.multicast.cursize)
	{
		Con_TPrintf("Unterminated multicast\n");
		sv.multicast.cursize=0;
	}

	// move autonomous things around if enough time has passed
	if (!sv.paused || (sv.world.physicstime < 1 && sv.spawned_client_slots))
	{
#ifdef Q2SERVER
		//q2 is idle even if clients sent packets.
		if (svs.gametype == GT_QUAKE2)
			isidle = true;
#endif
		if (SV_Physics ())
			isidle = false;
	}
	else
	{
		isidle = idletime < 0.1;
#ifdef VM_Q1
		if (svs.gametype == GT_Q1QVM)
		{
			Q1QVM_GameCodePausedTic(Sys_DoubleTime() - sv.pausedstart);
		}
		else
#endif
		{
			PR_GameCodePausedTic(Sys_DoubleTime() - sv.pausedstart);
		}
	}

	if (!isidle || idletime > 0.15)
	{
		//this is the q2 frame number found in the q2 protocol. each packet should contain a new frame or interpolation gets confused
		sv.framenum++;

#ifdef SQL
		PR_SQLCycle();
#endif

#ifdef SERVER_DEMO_PLAYBACK
		while(SV_ReadMVD());
#endif

		if (sv.multicast.cursize)
		{
			Con_TPrintf("Unterminated multicast\n");
			sv.multicast.cursize=0;
		}

#ifndef SERVERONLY
// check for commands typed to the host
		if (isDedicated)
#endif
		{
			NET_Tick();

			if (sv.framenum != 1)
			{
#ifndef SERVERONLY
				Sys_SendKeyEvents();
#else
				SV_GetConsoleCommands ();
#endif
			}

// process console commands
			if (!pr_imitatemvdsv.value)
				Cbuf_Execute ();
		}

		if (sv.state < ss_active)	//whoops...
			return delay;

		SV_CheckVars ();

// send messages back to the clients that had packets read this frame
		SV_SendClientMessages ();

//	demo_start = Sys_DoubleTime ();
		SV_SendMVDMessage();
//	demo_end = Sys_DoubleTime ();
//	svs.stats.demo += demo_end - demo_start;

// send a heartbeat to the master if needed
		SV_Master_Heartbeat ();


#ifdef Q2SERVER
		if (ge && ge->edicts)
			SVQ2_ClearEvents();
#endif
		idletime = 0;
	}
	idletime += timedelta;

// collect timing statistics
	end = Sys_DoubleTime ();
	svs.stats.active += end-start;
	if (++svs.stats.count == STATFRAMES)
	{
		svs.stats.latched_active = svs.stats.active;
		svs.stats.latched_idle = svs.stats.idle;
		svs.stats.latched_packets = svs.stats.packets;
		svs.stats.active = 0;
		svs.stats.idle = 0;
		svs.stats.packets = 0;
		svs.stats.count = 0;
	}
	return delay;
}

/*
===============
SV_InitLocal
===============
*/
extern void Log_Init (void);

void SV_InitLocal (void)
{
	int		i;
	extern	cvar_t	pr_allowbutton1;
	extern	cvar_t	sv_aim;

	extern	cvar_t	pm_bunnyspeedcap;
	extern	cvar_t	pm_ktjump;
	extern	cvar_t	pm_slidefix;
	extern	cvar_t	pm_airstep;
	extern	cvar_t	pm_walljump;
	extern	cvar_t	pm_slidyslopes;
	extern	cvar_t	pm_watersinkspeed;
	extern	cvar_t	pm_flyfriction;

	SV_InitOperatorCommands	();
	SV_UserInit ();

#ifndef SERVERONLY
	if (isDedicated)
#endif
	{
		Cvar_Register (&developer,	cvargroup_servercontrol);

		Cvar_Register (&password,	cvargroup_servercontrol);
		Cvar_Register (&rcon_password,	cvargroup_servercontrol);

		Log_Init();
	}
	rcon_password.restriction = RESTRICT_MAX;	//no cheatie rconers changing rcon passwords...
	Cvar_Register (&spectator_password,	cvargroup_servercontrol);

	Cvar_Register (&sv_mintic,	cvargroup_servercontrol);
	Cvar_Register (&sv_maxtic,	cvargroup_servercontrol);
	Cvar_Register (&sv_limittics,	cvargroup_servercontrol);

	Cvar_Register (&fraglimit,	cvargroup_serverinfo);
	Cvar_Register (&timelimit,	cvargroup_serverinfo);
	Cvar_Register (&teamplay,	cvargroup_serverinfo);
	Cvar_Register (&coop,	cvargroup_serverinfo);
	Cvar_Register (&skill,	cvargroup_serverinfo);
	Cvar_Register (&samelevel,	cvargroup_serverinfo);
	Cvar_Register (&maxclients,	cvargroup_serverinfo);
	Cvar_Register (&maxspectators,	cvargroup_serverinfo);
	Cvar_Register (&sv_playerslots,	cvargroup_serverinfo);
	Cvar_Register (&hostname,	cvargroup_serverinfo);
	Cvar_Register (&deathmatch,	cvargroup_serverinfo);
	Cvar_Register (&spawn,	cvargroup_servercontrol);

	//arguably cheats. Must be switched on to use.
	Cvar_Register (&watervis,	cvargroup_serverinfo);
	Cvar_Register (&rearview,	cvargroup_serverinfo);
	Cvar_Register (&mirrors,	cvargroup_serverinfo);
	Cvar_Register (&allow_skybox,	cvargroup_serverinfo);
	Cvar_Register (&sv_allow_splitscreen,	cvargroup_serverinfo);
	Cvar_Register (&fbskins,	cvargroup_serverinfo);

	Cvar_Register (&timeout,	cvargroup_servercontrol);
	Cvar_Register (&zombietime,	cvargroup_servercontrol);

	Cvar_Register (&sv_pupglow,	cvargroup_serverinfo);

	Cvar_Register (&sv_bigcoords,			cvargroup_serverphysics);

	Cvar_Register (&pm_bunnyspeedcap,		cvargroup_serverphysics);
	Cvar_Register (&pm_watersinkspeed,		cvargroup_serverphysics);
	Cvar_Register (&pm_flyfriction,			cvargroup_serverphysics);
	Cvar_Register (&pm_ktjump,				cvargroup_serverphysics);
	Cvar_Register (&pm_slidefix,			cvargroup_serverphysics);
	Cvar_Register (&pm_slidyslopes,			cvargroup_serverphysics);
	Cvar_Register (&pm_airstep,				cvargroup_serverphysics);
	Cvar_Register (&pm_walljump,			cvargroup_serverphysics);

	Cvar_Register (&sv_compatiblehulls,		cvargroup_serverphysics);
	Cvar_Register (&dpcompat_stats,			"Darkplaces compatibility");

	for (i = 0; i < sizeof(sv_motd)/sizeof(sv_motd[0]); i++)
		Cvar_Register(&sv_motd[i],	cvargroup_serverinfo);

	Cvar_Register (&sv_aim,	cvargroup_servercontrol);

	Cvar_Register (&sv_resetparms,	cvargroup_servercontrol);

	Cvar_Register (&sv_serverip,	cvargroup_servercontrol);
	Cvar_Register (&sv_public,	cvargroup_servercontrol);
	Cvar_Register (&sv_listen_qw,	cvargroup_servercontrol);
	Cvar_Register (&sv_listen_nq,	cvargroup_servercontrol);
	Cvar_Register (&sv_listen_dp,	cvargroup_servercontrol);
	Cvar_Register (&sv_listen_q3,	cvargroup_servercontrol);
	sv_listen_qw.restriction = RESTRICT_MAX;
	Cvar_Register (&fraglog_public,	cvargroup_servercontrol);

	SVNET_RegisterCvars();

	Cvar_Register (&sv_reportheartbeats, cvargroup_servercontrol);

#ifndef SERVERONLY
	if (isDedicated)
#endif
		Cvar_Set(&sv_public, "1");

	Cvar_Register (&sv_showconnectionlessmessages, cvargroup_servercontrol);
	Cvar_Register (&sv_banproxies, cvargroup_serverpermissions);
	Cvar_Register (&sv_master,	cvargroup_servercontrol);
	Cvar_Register (&sv_masterport,	cvargroup_servercontrol);

	Cvar_Register (&filterban,	cvargroup_servercontrol);

	Cvar_Register (&allow_download,	cvargroup_serverpermissions);
	Cvar_Register (&allow_download_skins,	cvargroup_serverpermissions);
	Cvar_Register (&allow_download_models,	cvargroup_serverpermissions);
	Cvar_Register (&allow_download_sounds,	cvargroup_serverpermissions);
	Cvar_Register (&allow_download_maps,	cvargroup_serverpermissions);
	Cvar_Register (&allow_download_demos,	cvargroup_serverpermissions);
	Cvar_Register (&allow_download_anymap,	cvargroup_serverpermissions);
	Cvar_Register (&allow_download_pakcontents,	cvargroup_serverpermissions);
	Cvar_Register (&allow_download_textures,cvargroup_serverpermissions);
	Cvar_Register (&allow_download_configs,	cvargroup_serverpermissions);
	Cvar_Register (&allow_download_packages,cvargroup_serverpermissions);
	Cvar_Register (&allow_download_refpackages,cvargroup_serverpermissions);
	Cvar_Register (&allow_download_wads,	cvargroup_serverpermissions);
	Cvar_Register (&allow_download_root,	cvargroup_serverpermissions);
	Cvar_Register (&allow_download_copyrighted,	cvargroup_serverpermissions);
	Cvar_Register (&allow_download_other,	cvargroup_serverpermissions);
	Cvar_Register (&secure,	cvargroup_serverpermissions);

	Cvar_Register (&sv_highchars,	cvargroup_servercontrol);
	Cvar_Register (&sv_calcphs,	cvargroup_servercontrol);
	Cvar_Register (&sv_phs,	cvargroup_servercontrol);
	Cvar_Register (&sv_cullplayers_trace, cvargroup_servercontrol);
	Cvar_Register (&sv_cullentities_trace, cvargroup_servercontrol);

	Cvar_Register (&sv_csqc_progname,	cvargroup_servercontrol);
	Cvar_Register (&sv_csqcdebug, cvargroup_servercontrol);
	Cvar_Register (&sv_specprint, cvargroup_serverpermissions);

	Cvar_Register (&sv_gamespeed, cvargroup_serverphysics);
	Cvar_Register (&sv_nqplayerphysics,	cvargroup_serverphysics);
	Cvar_Register (&pr_allowbutton1, cvargroup_servercontrol);

	Cvar_Register (&pausable,	cvargroup_servercontrol);

	Cvar_Register (&sv_maxrate, cvargroup_servercontrol);
	Cvar_Register (&sv_maxdrate, cvargroup_servercontrol);
	Cvar_Register (&sv_minping, cvargroup_servercontrol);

	Cvar_Register (&sv_nailhack, cvargroup_servercontrol);
	Cvar_Register (&sv_nopvs, cvargroup_servercontrol);
	Cvar_Register (&pext_ezquake_nochunks, cvargroup_servercontrol);

	Cmd_AddCommand ("sv_impulse", SV_Impulse_f);

#ifdef SUBSERVERS
	Cmd_AddCommand ("ssv", MSV_SubServerCommand_f);
	Cmd_AddCommand ("ssv_all", MSV_SubServerCommand_f);
	Cmd_AddCommand ("mapcluster", MSV_MapCluster_f);
#endif

	Cmd_AddCommand ("openroute", SV_OpenRoute_f);

	Cmd_AddCommand ("savegame_legacy", SV_LegacySavegame_f);
	Cmd_AddCommand ("savegame", SV_Savegame_f);
	Cmd_AddCommand ("loadgame", SV_Loadgame_f);
	Cmd_AddCommand ("save", SV_Savegame_f);
	Cmd_AddCommand ("load", SV_Loadgame_f);

	SV_MVDInit();

	Info_SetValueForStarKey (svs.info, "*version", version_string(), MAX_SERVERINFO_STRING);

	Info_SetValueForStarKey (svs.info, "*z_ext", va("%i", SUPPORTED_Z_EXTENSIONS), MAX_SERVERINFO_STRING);

	// init fraglog stuff
	svs.logsequence = 1;
	svs.logtime = realtime;
	for (i = 0; i < FRAGLOG_BUFFERS; i++)
	{
		svs.log[i].data = svs.log_buf[i];
		svs.log[i].maxsize = sizeof(svs.log_buf[i]);
		svs.log[i].cursize = 0;
		svs.log[i].allowoverflow = true;
	}

	svs.free_lagged_packet = NULL;
}

#define iswhite(c) ((c) == ' ' || (unsigned char)(c) == (unsigned char)INVIS_CHAR1 || (unsigned char)(c) == (unsigned char)INVIS_CHAR2 || (unsigned char)(c) == (unsigned char)INVIS_CHAR3)
#define isinvalid(c) ((c) == ':' || (c) == '\r' || (c) == '\n' || (unsigned char)(c) == (unsigned char)0xff || (c) == '\"')
//colon is so clients can't get confused while parsing chats
//255 is so fuhquake/ezquake don't end up with nameless players
//" is so mods that use player names in tokenizing/frik_files don't mess up. mods are still expected to be able to cope with space.

//is allowed to shorten, out must be as long as in and min of "unnamed"+1
void SV_FixupName(char *in, char *out, unsigned int outlen)
{
	char *s, *p;
	unsigned int len;
	conchar_t testbuf[1024], *t, *e;

	if (outlen == 0)
		return;

	len = outlen;

	s = out;
	while(iswhite(*in) || isinvalid(*in) || *in == '\1' || *in == '\2')	//1 and 2 are to stop clients from printing the entire line as chat. only do that for the leading charater.
		in++;
	while(*in && len > 0)
	{
		if (isinvalid(*in))
		{
			in++;
			continue;
		}
		*s++ = *in++;
		len--;
	}
	*s = '\0';

	/*note: clients are not guarenteed to parse things the same as the server. utf-8 surrogates may be awkward here*/
	e = COM_ParseFunString(CON_WHITEMASK, out, testbuf, sizeof(testbuf), false);
	for (t = testbuf; t < e; t++)
	{
		/*reject anything hidden in names*/
		if (*t & CON_HIDDEN)
			break;
		/*reject pictograms*/
		if ((*t & CON_CHARMASK) >= 0xe100 && (*t & CON_CHARMASK) < 0xe200)
			break;
		/*FIXME: should we try to ensure that the chars are in most fonts? that might annoy speakers of more exotic languages I suppose. cvar it?*/
	}

	if (!*out || (t < e) || e == testbuf)
	{	//reached end and it was all whitespace
		//white space only
		strncpy(out, "unnamed", outlen);
		out[outlen-1] = 0;
		p = out;
	}

	for (p = out + strlen(out) - 1; p != out && iswhite(*p) ; p--)
		;
	p[1] = 0;
}


qboolean ReloadRanking(client_t *cl, const char *newname)
{
#ifdef SVRANKING
	int newid;
	int j;
	rankstats_t rs;
	newid = Rank_GetPlayerID(cl->guid, newname, atoi(Info_ValueForKey (cl->userinfo, "_pwd")), true, false);	//'_' keys are always stripped. On any server. So try and use that so persistant data won't give out the password when connecting to a different server
	if (!newid)
		newid = Rank_GetPlayerID(cl->guid, newname, atoi(Info_ValueForKey (cl->userinfo, "password")), true, false);
	if (newid)
	{
		if (cl->rankid && cl->state >= cs_spawned)//apply current stats
		{
			if (!Rank_GetPlayerStats(cl->rankid, &rs))
				return false;
			rs.timeonserver += realtime - cl->stats_started;
			cl->stats_started = realtime;
			rs.kills += cl->kills;
			rs.deaths += cl->deaths;

			rs.flags1 &= ~(RANK_CUFFED|RANK_MUTED|RANK_CRIPPLED);
//			if (cl->iscuffed==2)
//				rs.flags1 |= RANK_CUFFED;
//			if (cl->ismuted==2)
//				rs.flags1 |= RANK_MUTED;
//			if (cl->iscrippled==2)
//				rs.flags1 |= RANK_CRIPPLED;
			cl->kills=0;
			cl->deaths=0;
			pr_global_struct->self = EDICT_TO_PROG(svprogfuncs, cl->edict);
			if (pr_global_ptrs->SetChangeParms)
				PR_ExecuteProgram (svprogfuncs, pr_global_struct->SetChangeParms);
			for (j=0 ; j<NUM_RANK_SPAWN_PARMS ; j++)
				if (pr_global_ptrs->spawnparamglobals[j])
					rs.parm[j] = *pr_global_ptrs->spawnparamglobals[j];
			Rank_SetPlayerStats(cl->rankid, &rs);
			cl->rankid = 0;
		}
		if (!Rank_GetPlayerStats(newid, &rs))
			return false;
		cl->rankid = newid;
		if (rs.flags1 & RANK_CUFFED)
			cl->penalties |= BAN_CUFF;
		if (rs.flags1 & RANK_MUTED)
			cl->penalties |= BAN_MUTE;
		if (rs.flags1 & RANK_CRIPPLED)
			cl->penalties |= BAN_CRIPPLED;

		cl->trustlevel = rs.trustlevel;
		return true;
	}
#endif
	return false;
}
/*
=================
SV_ExtractFromUserinfo

Pull specific info from a newly changed userinfo string
into a more C freindly form.
=================
*/
void SV_ExtractFromUserinfo (client_t *cl, qboolean verbose)
{
	char	*val, *p;
	int		i;
	client_t	*client;
	int		dupc = 1;
	char	newname[80], basic[80];
	extern cvar_t rank_filename;

	val = Info_ValueForKey (cl->userinfo, "team");
	Q_strncpyz (cl->team, val, sizeof(cl->teambuf));

	// name for C code
	val = Info_ValueForKey (cl->userinfo, "name");

	if (cl->protocol != SCP_BAD || *val)
	{
		SV_FixupName(val, newname, sizeof(newname));
		if (strlen(newname) > 40)
			newname[40] = 0;
	}
	else
		newname[0] = 0;

	deleetstring(basic, newname);
	if ((!basic[0] && cl->protocol != SCP_BAD) || strstr(basic, "console"))
		strcpy(newname, "unnamed");

	// check to see if another user by the same name exists
	while (1)
	{
		for (i=0, client = svs.clients ; i<svs.allocated_client_slots ; i++, client++)
		{
			if (client->state < cs_connected || client == cl)
				continue;
			if (!stricmp(client->name, newname))
				break;
		}
		if (i != svs.allocated_client_slots)
		{ // dup name
			if (strlen(newname) > sizeof(cl->namebuf) - 1)
				newname[sizeof(cl->namebuf) - 4] = 0;
			p = newname;

			if (newname[0] == '(')
			{
				if (newname[2] == ')')
					p = newname + 3;
				else if (val[3] == ')')
					p = newname + 4;
			}

			memmove(newname+10, p, strlen(p)+1);

			sprintf(newname, "(%d)%-.40s", dupc++, newname+10);
		}
		else
			break;
	}

	if (strncmp(newname, cl->name, sizeof(cl->namebuf)-1))
	{
		if ((cl->penalties & BAN_MUTE) && *cl->name && verbose)	//!verbose is a gamecode-forced update, where the gamecode is expected to know what its doing.
			SV_ClientTPrintf (cl, PRINT_HIGH, "Muted players may not change their names\n");
		else
		{

			Info_SetValueForKey (cl->userinfo, "name", newname, sizeof(cl->userinfo));
			if (!sv.paused && *cl->name)
			{
				if (!cl->lastnametime || realtime - cl->lastnametime > 5)
				{
					cl->lastnamecount = 0;
					cl->lastnametime = realtime;
				}
				else if (cl->lastnamecount++ > 4 && verbose)
				{
					SV_BroadcastTPrintf (PRINT_HIGH, "%s was kicked for name spamming\n", cl->name);
					SV_ClientTPrintf (cl, PRINT_HIGH, "You were kicked for name spamming\n");
					SV_DropClient (cl);
					return;
				}
			}

			if (*cl->name && cl->state >= cs_spawned && !cl->spectator && verbose)
			{
				SV_BroadcastTPrintf (PRINT_HIGH, "%s changed their name to %s\n", cl->name, newname);
			}
			Q_strncpyz (cl->name, newname, sizeof(cl->namebuf));

			if (svprogfuncs)
				svprogfuncs->SetStringField(svprogfuncs, cl->edict, &cl->edict->v->netname, cl->name, true);

#ifdef SVRANKING
			if (ReloadRanking(cl, newname))
			{
#endif
#ifdef SVRANKING
			}
			else if (cl->state >= cs_spawned && *rank_filename.string && verbose)
				SV_ClientTPrintf(cl, PRINT_HIGH, "Your rankings name has not been changed\n");
#endif
		}
	}

	Info_SetValueForKey(cl->userinfo, "name", newname, sizeof(cl->userinfo));

	val = Info_ValueForKey (cl->userinfo, "lang");
	cl->language = *val?TL_FindLanguage(val):svs.language;

	val = Info_ValueForKey (cl->userinfo, "nogib");
	cl->gibfilter = !!atoi(val);

	// rate command
	val = Info_ValueForKey (cl->userinfo, "rate");
	if (strlen(val))
		cl->rate = atoi(val);
	else
		cl->rate = ISNQCLIENT(cl)?10000:2500;	//an nq client cannot cope with quakeworld's default rate, and typically doesn't have rate set either.

	val = Info_ValueForKey (cl->userinfo, "drate");
	if (strlen(val))
		cl->drate = atoi(val);
	else
		cl->drate = cl->rate;	//0 disables the downloading check

#ifdef HEXEN2
	val = Info_ValueForKey (cl->userinfo, "cl_playerclass");
	if (val)
	{
		PRH2_SetPlayerClass(cl, atoi(val), false);
	}
#endif

	// msg command
	val = Info_ValueForKey (cl->userinfo, "msg");
	if (strlen(val))
	{
		cl->messagelevel = atoi(val);
	}

	val = Info_ValueForKey (cl->userinfo, "sp");	//naming for compat with mvdsv
	if (*val)
		cl->spec_print = atoi(val);
	else
		cl->spec_print = ~0;	//if unspecified, default to server setting (even if the cvar is changed mid-map).

#ifdef NQPROT
	{
		int top = atoi(Info_ValueForKey(cl->userinfo, "topcolor"));
		int bottom = atoi(Info_ValueForKey(cl->userinfo, "bottomcolor"));
		top &= 15;
		if (top > 13)
			top = 13;
		bottom &= 15;
		if (bottom > 13)
			bottom = 13;
		cl->playercolor = top*16 + bottom;
		if (svs.gametype == GT_PROGS || svs.gametype == GT_Q1QVM)
		{
			if (cl->edict)
				cl->edict->xv->clientcolors = cl->playercolor;
			MSG_WriteByte (&sv.nqreliable_datagram, svc_updatecolors);
			MSG_WriteByte (&sv.nqreliable_datagram, cl-svs.clients);
			MSG_WriteByte (&sv.nqreliable_datagram, cl->playercolor);
		}
	}
#endif
}

//============================================================================

/*
====================
SV_InitNet
====================
*/
void SV_InitNet (void)
{
#ifndef SERVERONLY
	if (isDedicated)
#endif
	{
		Netchan_Init ();
	}

	SV_Master_ReResolve();

//	NET_StringToAdr ("192.246.40.70:27000", &idmaster_adr);
}

/*
====================
SV_Init
====================
*/
#ifdef SERVER_DEMO_PLAYBACK
//FIXME: move to header
void SV_Demo_Init(void);
#endif

void SV_ExecInitialConfigs(char *defaultexec)
{
	if (COM_FileSize("server.cfg") != -1)
		Cbuf_InsertText ("exec server.cfg\nexec ftesrv.cfg\n", RESTRICT_LOCAL, false);
	else if (COM_FileSize("quake.rc") != -1)
		Cbuf_InsertText ("cl_warncmd 0\nexec quake.rc\ncl_warncmd 1\nexec ftesrv.cfg\n", RESTRICT_LOCAL, false);
	else
		Cbuf_InsertText ("cl_warncmd 0\nexec default.cfg\ncl_warncmd 1\nexec ftesrv.cfg\n", RESTRICT_LOCAL, false);

// process command line arguments
	Cbuf_Execute ();
}

void SV_Init (quakeparms_t *parms)
{
	if (isDedicated)
	{
		COM_InitArgv (parms->argc, parms->argv);


		host_parms = *parms;

		Cvar_Init();

		Memory_Init();

		Sys_Init();

		COM_ParsePlusSets(false);

		Cbuf_Init ();
		Cmd_Init ();
#ifndef SERVERONLY
		R_SetRenderer(NULL);
#endif
		NET_Init ();
		COM_Init ();
#ifdef Q2BSPS
		CM_Init();
#endif
#ifdef TERRAIN
		Terr_Init();
#endif
		Mod_Init (true);
		Mod_Init (false);

		PF_Common_RegisterCvars();
	}
	else
	{
#if defined(SERVERONLY) || !(defined(CSQC_DAT) || defined(MENU_DAT))
		PF_Common_RegisterCvars();
#endif
	}

	PR_Init ();

	SV_InitNet ();

	SV_InitLocal ();

#ifdef WEBSERVER
	IWebInit();
#endif

#ifdef SERVER_DEMO_PLAYBACK
	SV_Demo_Init();
#endif

#ifdef SVRANKING
	Rank_RegisterCommands();
#endif

#ifndef SERVERONLY
	if (isDedicated)
#endif
	{
		PM_Init ();

#ifdef PLUGINS
		Plug_Initialise(true);
#endif

		host_initialized = true;


		FS_ChangeGame(NULL, true);

		Cmd_StuffCmds();
		Cbuf_Execute ();


		Con_TPrintf ("Exe: %s %s\n", __DATE__, __TIME__);

		Con_Printf ("%s\n", version_string());

		Con_TPrintf ("======== %s Initialized ========\n", *fs_gamename.string?fs_gamename.string:"Nothing");

#ifdef SUBSERVERS
		if (SSV_IsSubServer())
		{
			NET_InitServer();
			return;
		}
#endif

		// if a map wasn't specified on the command line, spawn start.map
		//aliases require that we flush the cbuf in order to actually see the results.
		if (sv.state == ss_dead && Cmd_AliasExist("startmap_dm", RESTRICT_LOCAL))
		{
			Cbuf_AddText("startmap_dm", RESTRICT_LOCAL);	//DP extension
			Cbuf_Execute();
		}
		if (sv.state == ss_dead && Cmd_AliasExist("startmap_sp", RESTRICT_LOCAL))
		{
			Cbuf_AddText("startmap_sp", RESTRICT_LOCAL);	//DP extension
			Cbuf_Execute();
		}
		if (sv.state == ss_dead && COM_FCheckExists("maps/start.bsp"))
			Cmd_ExecuteString ("map start", RESTRICT_LOCAL);	//regular q1
	#ifdef HEXEN2
		if (sv.state == ss_dead && COM_FCheckExists("maps/demo1.bsp"))
			Cmd_ExecuteString ("map demo1", RESTRICT_LOCAL);	//regular h2 sp
	#endif
	#ifdef Q2SERVER
		if (sv.state == ss_dead && COM_FCheckExists("maps/base1.bsp"))
			Cmd_ExecuteString ("map base1", RESTRICT_LOCAL);	//regular q2 sp
	#endif
	#ifdef Q3SERVER
		if (sv.state == ss_dead && COM_FCheckExists("maps/q3dm1.bsp"))
			Cmd_ExecuteString ("map q3dm1", RESTRICT_LOCAL);	//regular q3 'sp'
	#endif
	#ifdef HLSERVER
		if (sv.state == ss_dead && COM_FCheckExists("maps/c0a0.bsp"))
			Cmd_ExecuteString ("map c0a0", RESTRICT_LOCAL);	//regular hl sp
	#endif

		if (sv.state == ss_dead)
			SV_Error ("Couldn't load a map");

	}
}

#endif