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quakeforge/qw/source/sv_user.c
Adam Olsen 18036b63d9 - change MSG_ReadString to return const char * and return a pointer 
directly into the packet data.
- change a bunch of char *'s to const char *'s for the above.  Only
  thing that had trouble was the cl_nofake handler, which I changed to
  use a local buffer.
- add MSG_ReadStaticString which acts like the old MSG_ReadString,
  specifically that it uses a static buffer and tollerates
  unterminated strings.
- add a Q_strnlen function, and make strnlen use it if strnlen is
  undefined.
- Add a net_svc.h and net_svc.c which will preparse svc messages into
  structs, for easier handling.  Currently only soundlist and
  modellist are done.
2001-10-18 04:44:58 +00:00

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/*
sv_user.c
server code for moving users
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:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
static const char rcsid[] =
"$Id$";
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <math.h>
#include <stdarg.h>
#include <stdlib.h>
#include <ctype.h>
#include "QF/checksum.h"
#include "QF/clip_hull.h"
#include "QF/cmd.h"
#include "QF/cvar.h"
#include "QF/msg.h"
#include "QF/sys.h"
#include "QF/va.h"
#include "QF/vfs.h"
#include "compat.h"
#include "bothdefs.h"
#include "msg_ucmd.h"
#include "pmove.h"
#include "server.h"
#include "sv_progs.h"
#include "world.h"
edict_t *sv_player;
usercmd_t cmd;
cvar_t *cl_rollspeed;
cvar_t *cl_rollangle;
cvar_t *sv_spectalk;
cvar_t *sv_mapcheck;
cvar_t *sv_timekick;
cvar_t *sv_timekick_fuzz;
cvar_t *sv_timekick_interval;
cvar_t *sv_kickfake;
extern cvar_t *sv_maxrate;
extern vec3_t player_mins;
extern int fp_messages, fp_persecond, fp_secondsdead;
extern char fp_msg[];
extern cvar_t *pausable;
void SV_FullClientUpdateToClient (client_t *client, client_t *cl);
/*
USER STRINGCMD EXECUTION
host_client and sv_player will be valid.
*/
/*
SV_New_f
Sends the first message from the server to a connected client.
This will be sent on the initial connection and upon each server load.
*/
void
SV_New_f (void)
{
const char *gamedir;
int playernum;
if (host_client->state == cs_spawned)
return;
host_client->state = cs_connected;
host_client->connection_started = realtime;
// send the info about the new client to all connected clients
// SV_FullClientUpdate (host_client, &sv.reliable_datagram);
// host_client->sendinfo = true;
gamedir = Info_ValueForKey (svs.info, "*gamedir");
if (!gamedir[0])
gamedir = "qw";
//NOTE: This doesn't go through ClientReliableWrite since it's before the user
//spawns. These functions are written to not overflow
if (host_client->num_backbuf) {
SV_Printf ("WARNING %s: [SV_New] Back buffered (%d0, clearing\n",
host_client->name, host_client->netchan.message.cursize);
host_client->num_backbuf = 0;
SZ_Clear (&host_client->netchan.message);
}
// send the serverdata
MSG_WriteByte (&host_client->netchan.message, svc_serverdata);
MSG_WriteLong (&host_client->netchan.message, PROTOCOL_VERSION);
MSG_WriteLong (&host_client->netchan.message, svs.spawncount);
MSG_WriteString (&host_client->netchan.message, gamedir);
playernum = NUM_FOR_EDICT (&sv_pr_state, host_client->edict) - 1;
if (host_client->spectator)
playernum |= 128;
MSG_WriteByte (&host_client->netchan.message, playernum);
// send full levelname
MSG_WriteString (&host_client->netchan.message,
PR_GetString (&sv_pr_state, SVstring (sv.edicts, message)));
// send the movevars
MSG_WriteFloat (&host_client->netchan.message, movevars.gravity);
MSG_WriteFloat (&host_client->netchan.message, movevars.stopspeed);
MSG_WriteFloat (&host_client->netchan.message, movevars.maxspeed);
MSG_WriteFloat (&host_client->netchan.message, movevars.spectatormaxspeed);
MSG_WriteFloat (&host_client->netchan.message, movevars.accelerate);
MSG_WriteFloat (&host_client->netchan.message, movevars.airaccelerate);
MSG_WriteFloat (&host_client->netchan.message, movevars.wateraccelerate);
MSG_WriteFloat (&host_client->netchan.message, movevars.friction);
MSG_WriteFloat (&host_client->netchan.message, movevars.waterfriction);
MSG_WriteFloat (&host_client->netchan.message, movevars.entgravity);
// send music
MSG_WriteByte (&host_client->netchan.message, svc_cdtrack);
MSG_WriteByte (&host_client->netchan.message, SVfloat (sv.edicts, sounds));
// send server info string
MSG_WriteByte (&host_client->netchan.message, svc_stufftext);
MSG_WriteString (&host_client->netchan.message,
va ("fullserverinfo \"%s\"\n", svs.info));
}
/*
SV_Soundlist_f
*/
void
SV_Soundlist_f (void)
{
const char **s;
unsigned n;
if (host_client->state != cs_connected) {
SV_Printf ("soundlist not valid -- already spawned\n");
return;
}
// handle the case of a level changing while a client was connecting
if (atoi (Cmd_Argv (1)) != svs.spawncount) {
SV_Printf ("SV_Soundlist_f from different level\n");
SV_New_f ();
return;
}
n = atoi (Cmd_Argv (2));
if (n >= MAX_SOUNDS) {
SV_Printf ("SV_Soundlist_f: Invalid soundlist index\n");
SV_New_f ();
return;
}
//NOTE: This doesn't go through ClientReliableWrite since it's before the user
//spawns. These functions are written to not overflow
if (host_client->num_backbuf) {
SV_Printf ("WARNING %s: [SV_Soundlist] Back buffered (%d0, clearing",
host_client->name, host_client->netchan.message.cursize);
host_client->num_backbuf = 0;
SZ_Clear (&host_client->netchan.message);
}
MSG_WriteByte (&host_client->netchan.message, svc_soundlist);
MSG_WriteByte (&host_client->netchan.message, n);
for (s = sv.sound_precache + 1 + n;
*s && host_client->netchan.message.cursize < (MAX_MSGLEN / 2);
s++, n++) MSG_WriteString (&host_client->netchan.message, *s);
MSG_WriteByte (&host_client->netchan.message, 0);
// next msg
if (*s)
MSG_WriteByte (&host_client->netchan.message, n);
else
MSG_WriteByte (&host_client->netchan.message, 0);
}
/*
SV_Modellist_f
*/
void
SV_Modellist_f (void)
{
const char **s;
unsigned n;
if (host_client->state != cs_connected) {
SV_Printf ("modellist not valid -- already spawned\n");
return;
}
// handle the case of a level changing while a client was connecting
if (atoi (Cmd_Argv (1)) != svs.spawncount) {
SV_Printf ("SV_Modellist_f from different level\n");
SV_New_f ();
return;
}
n = atoi (Cmd_Argv (2));
if (n >= MAX_MODELS) {
SV_Printf ("SV_Modellist_f: Invalid modellist index\n");
SV_New_f ();
return;
}
//NOTE: This doesn't go through ClientReliableWrite since it's before the user
//spawns. These functions are written to not overflow
if (host_client->num_backbuf) {
SV_Printf ("WARNING %s: [SV_Modellist] Back buffered (%d0, clearing",
host_client->name, host_client->netchan.message.cursize);
host_client->num_backbuf = 0;
SZ_Clear (&host_client->netchan.message);
}
MSG_WriteByte (&host_client->netchan.message, svc_modellist);
MSG_WriteByte (&host_client->netchan.message, n);
for (s = sv.model_precache + 1 + n;
*s && host_client->netchan.message.cursize < (MAX_MSGLEN / 2);
s++, n++) MSG_WriteString (&host_client->netchan.message, *s);
MSG_WriteByte (&host_client->netchan.message, 0);
// next msg
if (*s)
MSG_WriteByte (&host_client->netchan.message, n);
else
MSG_WriteByte (&host_client->netchan.message, 0);
}
/*
SV_PreSpawn_f
*/
void
SV_PreSpawn_f (void)
{
unsigned int buf;
unsigned int check;
sizebuf_t *msg;
char *command;
int size;
if (host_client->state != cs_connected) {
SV_Printf ("prespawn not valid -- already spawned\n");
return;
}
// handle the case of a level changing while a client was connecting
if (atoi (Cmd_Argv (1)) != svs.spawncount) {
SV_Printf ("SV_PreSpawn_f from different level\n");
SV_New_f ();
return;
}
buf = atoi (Cmd_Argv (2));
if (buf >= sv.num_signon_buffers)
buf = 0;
if (!buf) {
// should be three numbers following containing checksums
check = atoi (Cmd_Argv (3));
// Con_DPrintf("Client check = %d\n", check);
if (sv_mapcheck->int_val && check != sv.worldmodel->checksum &&
check != sv.worldmodel->checksum2) {
SV_ClientPrintf (host_client, PRINT_HIGH,
"Map model file does not match (%s), %i != %i/%i.\n"
"You may need a new version of the map, or the proper install files.\n",
sv.modelname, check, sv.worldmodel->checksum,
sv.worldmodel->checksum2);
SV_DropClient (host_client);
return;
}
host_client->checksum = check;
}
host_client->prespawned = true;
if (buf == sv.num_signon_buffers - 1)
command = va ("cmd spawn %i 0\n", svs.spawncount);
else
command = va ("cmd prespawn %i %i\n", svs.spawncount, buf + 1);
size = sv.signon_buffer_size[buf] + 1 + strlen(command) + 1;
ClientReliableCheckBlock (host_client, size);
if (host_client->num_backbuf)
msg = &host_client->backbuf;
else
msg = &host_client->netchan.message;
SZ_Write (msg, sv.signon_buffers[buf], sv.signon_buffer_size[buf]);
MSG_WriteByte (msg, svc_stufftext);
MSG_WriteString (msg, command);
}
/*
SV_Spawn_f
*/
void
SV_Spawn_f (void)
{
int i;
client_t *client;
edict_t *ent;
pr_type_t *val;
int n;
if (host_client->state != cs_connected) {
SV_Printf ("Spawn not valid -- already spawned\n");
return;
}
// handle the case of a level changing while a client was connecting
if (atoi (Cmd_Argv (1)) != svs.spawncount) {
SV_Printf ("SV_Spawn_f from different level\n");
SV_New_f ();
return;
}
// make sure they're not trying to cheat by spawning without prespawning
if (host_client->prespawned == false) {
SV_BroadcastPrintf (PRINT_HIGH,
va ("%s has been kicked for trying to spawn before prespawning!\n",
host_client->name));
SV_DropClient (host_client);
return;
}
n = atoi (Cmd_Argv (2));
// make sure n is valid
if (n < 0 || n > MAX_CLIENTS) {
SV_Printf ("SV_Spawn_f invalid client start\n");
SV_New_f ();
return;
}
host_client->spawned = true;
// send all current names, colors, and frag counts
// FIXME: is this a good thing?
SZ_Clear (&host_client->netchan.message);
// send current status of all other players
// normally this could overflow, but no need to check due to backbuf
for (i = n, client = svs.clients + n; i < MAX_CLIENTS; i++, client++)
SV_FullClientUpdateToClient (client, host_client);
// send all current light styles
for (i = 0; i < MAX_LIGHTSTYLES; i++) {
ClientReliableWrite_Begin (host_client, svc_lightstyle,
3 +
(sv.
lightstyles[i] ? strlen (sv.
lightstyles[i]) :
1));
ClientReliableWrite_Byte (host_client, (char) i);
ClientReliableWrite_String (host_client, sv.lightstyles[i]);
}
// set up the edict
ent = host_client->edict;
memset (&ent->v, 0, sv_pr_state.progs->entityfields * 4);
SVfloat (ent, colormap) = NUM_FOR_EDICT (&sv_pr_state, ent);
SVfloat (ent, team) = 0; // FIXME
SVstring (ent, netname) = PR_SetString (&sv_pr_state, host_client->name);
host_client->entgravity = 1.0;
val = GetEdictFieldValue (&sv_pr_state, ent, "gravity");
if (val)
val->float_var = 1.0;
host_client->maxspeed = sv_maxspeed->value;
val = GetEdictFieldValue (&sv_pr_state, ent, "maxspeed");
if (val)
val->float_var = sv_maxspeed->value;
//
// force stats to be updated
//
memset (host_client->stats, 0, sizeof (host_client->stats));
ClientReliableWrite_Begin (host_client, svc_updatestatlong, 6);
ClientReliableWrite_Byte (host_client, STAT_TOTALSECRETS);
ClientReliableWrite_Long (host_client, *sv_globals.total_secrets);
ClientReliableWrite_Begin (host_client, svc_updatestatlong, 6);
ClientReliableWrite_Byte (host_client, STAT_TOTALMONSTERS);
ClientReliableWrite_Long (host_client, *sv_globals.total_monsters);
ClientReliableWrite_Begin (host_client, svc_updatestatlong, 6);
ClientReliableWrite_Byte (host_client, STAT_SECRETS);
ClientReliableWrite_Long (host_client, *sv_globals.found_secrets);
ClientReliableWrite_Begin (host_client, svc_updatestatlong, 6);
ClientReliableWrite_Byte (host_client, STAT_MONSTERS);
ClientReliableWrite_Long (host_client, *sv_globals.killed_monsters);
// get the client to check and download skins
// when that is completed, a begin command will be issued
ClientReliableWrite_Begin (host_client, svc_stufftext, 8);
ClientReliableWrite_String (host_client, "skins\n");
}
/*
SV_SpawnSpectator
*/
void
SV_SpawnSpectator (void)
{
int i;
edict_t *e;
VectorCopy (vec3_origin, SVvector (sv_player, origin));
VectorCopy (vec3_origin, SVvector (sv_player, view_ofs));
SVvector (sv_player, view_ofs)[2] = 22;
// search for an info_playerstart to spawn the spectator at
for (i = MAX_CLIENTS - 1; i < sv.num_edicts; i++) {
e = EDICT_NUM (&sv_pr_state, i);
if (!strcmp (PR_GetString (&sv_pr_state, SVstring (e, classname)), "info_player_start")) {
VectorCopy (SVvector (e, origin), SVvector (sv_player, origin));
return;
}
}
}
/*
SV_Begin_f
*/
void
SV_Begin_f (void)
{
unsigned int pmodel = 0, emodel = 0;
int i;
if (host_client->state == cs_spawned)
return; // don't begin again
host_client->state = cs_spawned;
// handle the case of a level changing while a client was connecting
if (atoi (Cmd_Argv (1)) != svs.spawncount) {
SV_Printf ("SV_Begin_f from different level\n");
SV_New_f ();
return;
}
// make sure they're not trying to cheat by beginning without spawning
if (host_client->spawned == false) {
SV_BroadcastPrintf (PRINT_HIGH,
va ("%s has been kicked for trying to begin before spawning!\n"
"Have a nice day!\n", // 1 string!
host_client->name));
SV_DropClient (host_client);
return;
}
if (host_client->spectator) {
SV_SpawnSpectator ();
if (SpectatorConnect) {
// copy spawn parms out of the client_t
for (i = 0; i < NUM_SPAWN_PARMS; i++)
sv_globals.parms[i] = host_client->spawn_parms[i];
// call the spawn function
*sv_globals.time = sv.time;
*sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player);
PR_ExecuteProgram (&sv_pr_state, SpectatorConnect);
}
} else {
// copy spawn parms out of the client_t
for (i = 0; i < NUM_SPAWN_PARMS; i++)
sv_globals.parms[i] = host_client->spawn_parms[i];
// call the spawn function
*sv_globals.time = sv.time;
*sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player);
PR_ExecuteProgram (&sv_pr_state, sv_funcs.ClientConnect);
// actually spawn the player
*sv_globals.time = sv.time;
*sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player);
PR_ExecuteProgram (&sv_pr_state, sv_funcs.PutClientInServer);
}
// clear the net statistics, because connecting gives a bogus picture
host_client->last_check = -1;
host_client->netchan.frame_latency = 0;
host_client->netchan.frame_rate = 0;
host_client->netchan.drop_count = 0;
host_client->netchan.good_count = 0;
// check he's not cheating
pmodel = atoi (Info_ValueForKey (host_client->userinfo, "pmodel"));
emodel = atoi (Info_ValueForKey (host_client->userinfo, "emodel"));
if (pmodel != sv.model_player_checksum || emodel != sv.eyes_player_checksum)
SV_BroadcastPrintf (PRINT_HIGH,
"%s WARNING: non standard player/eyes model detected\n",
host_client->name);
// if we are paused, tell the client
if (sv.paused) {
ClientReliableWrite_Begin (host_client, svc_setpause, 2);
ClientReliableWrite_Byte (host_client, sv.paused);
SV_ClientPrintf (host_client, PRINT_HIGH, "Server is paused.\n");
}
#if 0
//
// send a fixangle over the reliable channel to make sure it gets there
// Never send a roll angle, because savegames can catch the server
// in a state where it is expecting the client to correct the angle
// and it won't happen if the game was just loaded, so you wind up
// with a permanent head tilt
ent = EDICT_NUM (&sv_pr_state, 1 + (host_client - svs.clients));
MSG_WriteByte (&host_client->netchan.message, svc_setangle);
for (i = 0; i < 2; i++)
MSG_WriteAngle (&host_client->netchan.message, SVvector (ent, angles)[i]);
MSG_WriteAngle (&host_client->netchan.message, 0);
#endif
}
//=============================================================================
/*
SV_NextDownload_f
*/
void
SV_NextDownload_f (void)
{
byte buffer[1024];
int r;
int percent;
int size;
if (!host_client->download)
return;
r = host_client->downloadsize - host_client->downloadcount;
if (r > 768)
r = 768;
r = Qread (host_client->download, buffer, r);
ClientReliableWrite_Begin (host_client, svc_download, 6 + r);
ClientReliableWrite_Short (host_client, r);
host_client->downloadcount += r;
size = host_client->downloadsize;
if (!size)
size = 1;
percent = host_client->downloadcount * 100 / size;
ClientReliableWrite_Byte (host_client, percent);
ClientReliableWrite_SZ (host_client, buffer, r);
if (host_client->downloadcount != host_client->downloadsize)
return;
Qclose (host_client->download);
host_client->download = NULL;
}
void
OutofBandPrintf (netadr_t where, char *fmt, ...)
{
va_list argptr;
char send[1024];
send[0] = 0xff;
send[1] = 0xff;
send[2] = 0xff;
send[3] = 0xff;
send[4] = A2C_PRINT;
va_start (argptr, fmt);
vsnprintf (send + 5, sizeof (send - 5), fmt, argptr);
va_end (argptr);
NET_SendPacket (strlen (send) + 1, send, where);
}
/*
SV_NextUpload
*/
void
SV_NextUpload (void)
{
int percent;
int size;
if (!*host_client->uploadfn) {
SV_ClientPrintf (host_client, PRINT_HIGH, "Upload denied\n");
ClientReliableWrite_Begin (host_client, svc_stufftext, 8);
ClientReliableWrite_String (host_client, "stopul");
// suck out rest of packet
size = MSG_ReadShort (net_message);
MSG_ReadByte (net_message);
net_message->readcount += size;
return;
}
size = MSG_ReadShort (net_message);
percent = MSG_ReadByte (net_message);
if (!host_client->upload) {
host_client->upload = Qopen (host_client->uploadfn, "wb");
if (!host_client->upload) {
SV_Printf ("Can't create %s\n", host_client->uploadfn);
ClientReliableWrite_Begin (host_client, svc_stufftext, 8);
ClientReliableWrite_String (host_client, "stopul");
*host_client->uploadfn = 0;
return;
}
SV_Printf ("Receiving %s from %d...\n", host_client->uploadfn,
host_client->userid);
if (host_client->remote_snap)
OutofBandPrintf (host_client->snap_from,
"Server receiving %s from %d...\n",
host_client->uploadfn, host_client->userid);
}
Qwrite (host_client->upload, net_message->message->data + net_message->readcount, size);
net_message->readcount += size;
Con_DPrintf ("UPLOAD: %d received\n", size);
if (percent != 100) {
ClientReliableWrite_Begin (host_client, svc_stufftext, 8);
ClientReliableWrite_String (host_client, "nextul\n");
} else {
Qclose (host_client->upload);
host_client->upload = NULL;
SV_Printf ("%s upload completed.\n", host_client->uploadfn);
if (host_client->remote_snap) {
char *p;
if ((p = strchr (host_client->uploadfn, '/')) != NULL)
p++;
else
p = host_client->uploadfn;
OutofBandPrintf (host_client->snap_from,
"%s upload completed.\nTo download, enter:\ndownload %s\n",
host_client->uploadfn, p);
}
}
}
/*
SV_BeginDownload_f
*/
void
SV_BeginDownload_f (void)
{
const char *name;
VFile *file;
int size;
char realname[MAX_OSPATH];
int zip;
extern cvar_t *allow_download;
extern cvar_t *allow_download_skins;
extern cvar_t *allow_download_models;
extern cvar_t *allow_download_sounds;
extern cvar_t *allow_download_maps;
extern int file_from_pak; // ZOID did file come from pak?
name = Cmd_Argv (1);
// hacked by zoid to allow more conrol over download
// first off, no .. or global allow check
if (strstr (name, "..") || !allow_download->int_val
// leading dot is no good
|| *name == '.'
// next up, skin check
|| (strncmp (name, "skins/", 6) == 0 && !allow_download_skins->int_val)
// now models
|| (strncmp (name, "progs/", 6) == 0 && !allow_download_models->int_val)
// now sounds
|| (strncmp (name, "sound/", 6) == 0 && !allow_download_sounds->int_val)
// now maps (note special case for maps, must not be in pak)
|| (strncmp (name, "maps/", 5) == 0 && !allow_download_maps->int_val)
// MUST be in a subdirectory
|| !strstr (name, "/")) { // don't allow anything with .. path
ClientReliableWrite_Begin (host_client, svc_download, 4);
ClientReliableWrite_Short (host_client, -1);
ClientReliableWrite_Byte (host_client, 0);
return;
}
if (host_client->download) {
Qclose (host_client->download);
host_client->download = NULL;
}
// lowercase name (needed for casesen file systems)
{
char *p = Hunk_TempAlloc (strlen (name) + 1);
char *n = p;
while (*name)
*p++ = tolower ((int) *name++);
name = n;
}
zip = strchr (Info_ValueForKey (host_client->userinfo, "*cap"), 'z') != 0;
size = _COM_FOpenFile (name, &file, realname, !zip);
host_client->download = file;
host_client->downloadsize = size;
host_client->downloadcount = 0;
if (!host_client->download
// special check for maps, if it came from a pak file, don't allow
// download ZOID
|| (strncmp (name, "maps/", 5) == 0 && file_from_pak)) {
if (host_client->download) {
Qclose (host_client->download);
host_client->download = NULL;
}
SV_Printf ("Couldn't download %s to %s\n", name, host_client->name);
ClientReliableWrite_Begin (host_client, svc_download, 4);
ClientReliableWrite_Short (host_client, -1);
ClientReliableWrite_Byte (host_client, 0);
return;
}
if (zip && strcmp (realname, name)) {
SV_Printf ("download renamed to %s\n", realname);
ClientReliableWrite_Begin (host_client, svc_download,
strlen (realname) + 5);
ClientReliableWrite_Short (host_client, -2);
ClientReliableWrite_Byte (host_client, 0);
ClientReliableWrite_String (host_client, realname);
ClientReliable_FinishWrite (host_client);
}
SV_NextDownload_f ();
SV_Printf ("Downloading %s to %s\n", name, host_client->name);
}
//=============================================================================
/*
SV_Say
*/
void
SV_Say (qboolean team)
{
client_t *client;
int j, tmp;
char *p;
char text[2048];
char t1[32];
const char *t2;
char *i;
if (Cmd_Argc () < 2)
return;
if (team) {
strncpy (t1, Info_ValueForKey (host_client->userinfo, "team"), 31);
t1[31] = 0;
}
if (host_client->spectator && (!sv_spectalk->int_val || team))
snprintf (text, sizeof (text), "[SPEC] %s: ", host_client->name);
else if (team)
snprintf (text, sizeof (text), "(%s): ", host_client->name);
else {
snprintf (text, sizeof (text), "%s: ", host_client->name);
}
if (fp_messages) {
if (!sv.paused && realtime < host_client->lockedtill) {
SV_ClientPrintf (host_client, PRINT_CHAT,
"You can't talk for %d more seconds\n",
(int) (host_client->lockedtill - realtime));
return;
}
tmp = host_client->whensaidhead - fp_messages + 1;
if (tmp < 0)
tmp = 10 + tmp;
if (!sv.paused &&
host_client->whensaid[tmp]
&& (realtime - host_client->whensaid[tmp] < fp_persecond)) {
host_client->lockedtill = realtime + fp_secondsdead;
if (fp_msg[0])
SV_ClientPrintf (host_client, PRINT_CHAT,
"FloodProt: %s\n", fp_msg);
else
SV_ClientPrintf (host_client, PRINT_CHAT,
"FloodProt: You can't talk for %d seconds.\n",
fp_secondsdead);
return;
}
host_client->whensaidhead++;
if (host_client->whensaidhead > 9)
host_client->whensaidhead = 0;
host_client->whensaid[host_client->whensaidhead] = realtime;
}
p = Hunk_TempAlloc (strlen(Cmd_Args (1)) + 1);
strcpy (p, Cmd_Args (1));
if (*p == '"') {
p++;
p[strlen (p) - 1] = 0;
}
for (i = p; *i; i++)
if (*i == 13) { // ^M
if (sv_kickfake->int_val) {
SV_BroadcastPrintf (PRINT_HIGH, "%s was kicked for attempting to fake messages\n", host_client->name);
SV_ClientPrintf (host_client, PRINT_HIGH, "You were kicked for attempting to fake messages\n");
SV_DropClient (host_client);
return;
} else
*i = '#';
}
strncat (text, p, sizeof (text) - strlen (text));
strncat (text, "\n", sizeof (text) - strlen (text));
SV_Printf ("%s", text);
for (j = 0, client = svs.clients; j < MAX_CLIENTS; j++, client++) {
if (client->state < cs_connected) // Clients connecting can hear.
continue;
if (host_client->spectator && !sv_spectalk->int_val)
if (!client->spectator)
continue;
if (team) {
// the spectator team
if (host_client->spectator) {
if (!client->spectator)
continue;
} else {
t2 = Info_ValueForKey (client->userinfo, "team");
if (strcmp (t1, t2) || client->spectator)
continue; // on different teams
}
}
SV_ClientPrintf (client, PRINT_CHAT, "%s", text);
}
}
/*
SV_Say_f
*/
void
SV_Say_f (void)
{
SV_Say (false);
}
/*
SV_Say_Team_f
*/
void
SV_Say_Team_f (void)
{
SV_Say (true);
}
//============================================================================
/*
SV_Pings_f
The client is showing the scoreboard, so send new ping times for all
clients
*/
void
SV_Pings_f (void)
{
client_t *client;
int j;
for (j = 0, client = svs.clients; j < MAX_CLIENTS; j++, client++) {
if (client->state != cs_spawned)
continue;
ClientReliableWrite_Begin (host_client, svc_updateping, 4);
ClientReliableWrite_Byte (host_client, j);
ClientReliableWrite_Short (host_client, SV_CalcPing (client));
ClientReliableWrite_Begin (host_client, svc_updatepl, 4);
ClientReliableWrite_Byte (host_client, j);
ClientReliableWrite_Byte (host_client, client->lossage);
}
}
/*
SV_Kill_f
*/
void
SV_Kill_f (void)
{
if (SVfloat (sv_player, health) <= 0) {
SV_BeginRedirect (RD_CLIENT);
SV_ClientPrintf (host_client, PRINT_HIGH,
"Can't suicide -- already dead!\n");
SV_EndRedirect ();
return;
}
*sv_globals.time = sv.time;
*sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player);
PR_ExecuteProgram (&sv_pr_state, sv_funcs.ClientKill);
}
/*
SV_TogglePause
*/
void
SV_TogglePause (const char *msg)
{
int i;
client_t *cl;
sv.paused ^= 1;
if (msg)
SV_BroadcastPrintf (PRINT_HIGH, "%s", msg);
// send notification to all clients
for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++) {
if (!cl->state)
continue;
ClientReliableWrite_Begin (cl, svc_setpause, 2);
ClientReliableWrite_Byte (cl, sv.paused);
}
}
/*
SV_Pause_f
*/
void
SV_Pause_f (void)
{
static double lastpausetime;
double currenttime;
char st[sizeof (host_client->name) + 32];
currenttime = Sys_DoubleTime ();
if (lastpausetime + 1 > currenttime) {
SV_ClientPrintf (host_client, PRINT_HIGH, "Pause flood not allowed.\n");
return;
}
lastpausetime = currenttime;
if (!pausable->int_val) {
SV_ClientPrintf (host_client, PRINT_HIGH, "Pause not allowed.\n");
return;
}
if (host_client->spectator) {
SV_ClientPrintf (host_client, PRINT_HIGH,
"Spectators can not pause.\n");
return;
}
if (!sv.paused)
snprintf (st, sizeof (st), "%s paused the game\n", host_client->name);
else
snprintf (st, sizeof (st), "%s unpaused the game\n", host_client->name);
SV_TogglePause (st);
}
/*
SV_Drop_f
The client is going to disconnect, so remove the connection immediately
*/
void
SV_Drop_f (void)
{
SV_EndRedirect ();
if (!host_client->spectator)
SV_BroadcastPrintf (PRINT_HIGH, "%s dropped\n", host_client->name);
SV_DropClient (host_client);
}
/*
SV_PTrack_f
Change the bandwidth estimate for a client
*/
void
SV_PTrack_f (void)
{
int i;
edict_t *ent, *tent;
if (!host_client->spectator)
return;
if (Cmd_Argc () != 2) {
// turn off tracking
host_client->spec_track = 0;
ent = EDICT_NUM (&sv_pr_state, host_client - svs.clients + 1);
tent = EDICT_NUM (&sv_pr_state, 0);
SVentity (ent, goalentity) = EDICT_TO_PROG (&sv_pr_state, tent);
return;
}
i = atoi (Cmd_Argv (1));
if (i < 0 || i >= MAX_CLIENTS || svs.clients[i].state != cs_spawned ||
svs.clients[i].spectator) {
SV_ClientPrintf (host_client, PRINT_HIGH, "Invalid client to track\n");
host_client->spec_track = 0;
ent = EDICT_NUM (&sv_pr_state, host_client - svs.clients + 1);
tent = EDICT_NUM (&sv_pr_state, 0);
SVentity (ent, goalentity) = EDICT_TO_PROG (&sv_pr_state, tent);
return;
}
host_client->spec_track = i + 1; // now tracking
ent = EDICT_NUM (&sv_pr_state, host_client - svs.clients + 1);
tent = EDICT_NUM (&sv_pr_state, i + 1);
SVentity (ent, goalentity) = EDICT_TO_PROG (&sv_pr_state, tent);
}
/*
SV_Rate_f
Change the bandwidth estimate for a client
*/
void
SV_Rate_f (void)
{
int rate;
if (Cmd_Argc () != 2) {
SV_ClientPrintf (host_client, PRINT_HIGH, "Current rate is %i\n",
(int) (1.0 / host_client->netchan.rate + 0.5));
return;
}
rate = atoi (Cmd_Argv (1));
if ((sv_maxrate->int_val) && (rate > sv_maxrate->int_val)) {
rate = bound (500, rate, sv_maxrate->int_val);
} else {
rate = bound (500, rate, 10000);
}
SV_ClientPrintf (host_client, PRINT_HIGH, "Net rate set to %i\n", rate);
host_client->netchan.rate = 1.0 / rate;
}
/*
SV_Msg_f
Change the message level for a client
*/
void
SV_Msg_f (void)
{
if (Cmd_Argc () != 2) {
SV_ClientPrintf (host_client, PRINT_HIGH, "Current msg level is %i\n",
host_client->messagelevel);
return;
}
host_client->messagelevel = atoi (Cmd_Argv (1));
SV_ClientPrintf (host_client, PRINT_HIGH, "Msg level set to %i\n",
host_client->messagelevel);
}
/*
SV_SetInfo_f
Allow clients to change userinfo
*/
void
SV_SetInfo_f (void)
{
if (Cmd_Argc () == 1) {
SV_Printf ("User info settings:\n");
Info_Print (host_client->userinfo);
return;
}
if (Cmd_Argc () != 3) {
SV_Printf ("usage: setinfo [ <key> <value> ]\n");
return;
}
if (Cmd_Argv (1)[0] == '*')
return; // don't set priveledged values
if (UserInfoCallback) {
*sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player);
G_var (&sv_pr_state, OFS_PARM0, string) = PR_SetString (&sv_pr_state,
Cmd_Argv (1));
G_var (&sv_pr_state, OFS_PARM1, string) = PR_SetString (&sv_pr_state,
Cmd_Argv (2));
PR_ExecuteProgram (&sv_pr_state, UserInfoCallback);
return;
} else {
char oldval[MAX_INFO_STRING];
strcpy (oldval, Info_ValueForKey (host_client->userinfo, Cmd_Argv (1)));
Info_SetValueForKey (host_client->userinfo, Cmd_Argv (1), Cmd_Argv (2),
MAX_INFO_STRING, !sv_highchars->int_val);
if (strequal
(Info_ValueForKey (host_client->userinfo, Cmd_Argv (1)), oldval))
return; // key hasn't changed
}
// process any changed values
SV_ExtractFromUserinfo (host_client);
if (Info_FilterForKey (Cmd_Argv (1), client_info_filters)) {
MSG_WriteByte (&sv.reliable_datagram, svc_setinfo);
MSG_WriteByte (&sv.reliable_datagram, host_client - svs.clients);
MSG_WriteString (&sv.reliable_datagram, Cmd_Argv (1));
MSG_WriteString (&sv.reliable_datagram,
Info_ValueForKey (host_client->userinfo,
Cmd_Argv (1)));
}
}
/*
SV_ShowServerinfo_f
Dump serverinfo into a string
*/
void
SV_ShowServerinfo_f (void)
{
Info_Print (svs.info);
}
void
SV_NoSnap_f (void)
{
if (*host_client->uploadfn) {
*host_client->uploadfn = 0;
SV_BroadcastPrintf (PRINT_HIGH, "%s refused remote screenshot\n",
host_client->name);
}
}
typedef struct {
const char *name;
void (*func) (void);
int no_redirect;
} ucmd_t;
ucmd_t ucmds[] = {
{"new", SV_New_f},
{"modellist", SV_Modellist_f},
{"soundlist", SV_Soundlist_f},
{"prespawn", SV_PreSpawn_f},
{"spawn", SV_Spawn_f},
{"begin", SV_Begin_f, 1},
{"drop", SV_Drop_f},
{"pings", SV_Pings_f},
// issued by hand at client consoles
{"rate", SV_Rate_f},
{"kill", SV_Kill_f, 1},
{"pause", SV_Pause_f, 1},
{"msg", SV_Msg_f},
{"say", SV_Say_f, 1},
{"say_team", SV_Say_Team_f, 1},
{"setinfo", SV_SetInfo_f, 1},
{"serverinfo", SV_ShowServerinfo_f},
{"download", SV_BeginDownload_f, 1},
{"nextdl", SV_NextDownload_f},
{"ptrack", SV_PTrack_f}, // ZOID - used with autocam
{"snap", SV_NoSnap_f},
};
static int
ucmds_compare (const void *_a, const void *_b)
{
ucmd_t *a = (ucmd_t*)_a;
ucmd_t *b = (ucmd_t*)_b;
return strcmp (a->name, b->name);
}
/*
SV_ExecuteUserCommand
Uhh...execute user command. :)
*/
void
SV_ExecuteUserCommand (const char *s)
{
ucmd_t *u;
ucmd_t cmd;
Cmd_TokenizeString (s);
sv_player = host_client->edict;
cmd.name = Cmd_Argv(0);
u = (ucmd_t*) bsearch (&cmd, ucmds, sizeof (ucmds) / sizeof (ucmds[0]),
sizeof (ucmds[0]), ucmds_compare);
if (!u) {
SV_BeginRedirect (RD_CLIENT);
SV_Printf ("Bad user command: %s\n", Cmd_Argv (0));
SV_EndRedirect ();
} else {
if (!u->no_redirect)
SV_BeginRedirect (RD_CLIENT);
u->func ();
if (!u->no_redirect)
SV_EndRedirect ();
}
}
/*
USER CMD EXECUTION
*/
/*
SV_CalcRoll
Used by view and sv_user
*/
float
SV_CalcRoll (vec3_t angles, vec3_t velocity)
{
vec3_t forward, right, up;
float sign;
float side;
float value;
AngleVectors (angles, forward, right, up);
side = DotProduct (velocity, right);
sign = side < 0 ? -1 : 1;
side = fabs (side);
value = cl_rollangle->value;
if (side < cl_rollspeed->value)
side = side * value / cl_rollspeed->value;
else
side = value;
return side * sign;
}
//============================================================================
vec3_t pmove_mins, pmove_maxs;
/*
AddLinksToPmove
*/
void
AddLinksToPmove (areanode_t *node)
{
link_t *l, *next;
edict_t *check;
int pl;
int i;
physent_t *pe;
pl = EDICT_TO_PROG (&sv_pr_state, sv_player);
// touch linked edicts
for (l = node->solid_edicts.next; l != &node->solid_edicts; l = next) {
next = l->next;
check = EDICT_FROM_AREA (l);
if (SVentity (check, owner) == pl)
continue; // player's own missile
if (SVfloat (check, solid) == SOLID_BSP
|| SVfloat (check, solid) == SOLID_BBOX || SVfloat (check, solid) == SOLID_SLIDEBOX) {
if (check == sv_player)
continue;
for (i = 0; i < 3; i++)
if (SVvector (check, absmin)[i] > pmove_maxs[i]
|| SVvector (check, absmax)[i] < pmove_mins[i])
break;
if (i != 3)
continue;
if (pmove.numphysent == MAX_PHYSENTS)
return;
pe = &pmove.physents[pmove.numphysent];
pmove.numphysent++;
VectorCopy (SVvector (check, origin), pe->origin);
pe->info = NUM_FOR_EDICT (&sv_pr_state, check);
if (sv_fields.rotated_bbox != -1
&& SVinteger (check, rotated_bbox)) {
int h = SVinteger (check, rotated_bbox) - 1;
extern clip_hull_t *pf_hull_list[];
pe->hull = pf_hull_list[h]->hulls[1];
} else {
pe->hull = 0;
if (SVfloat (check, solid) == SOLID_BSP) {
pe->model = sv.models[(int) (SVfloat (check, modelindex))];
} else {
pe->model = NULL;
VectorCopy (SVvector (check, mins), pe->mins);
VectorCopy (SVvector (check, maxs), pe->maxs);
}
}
}
}
// recurse down both sides
if (node->axis == -1)
return;
if (pmove_maxs[node->axis] > node->dist)
AddLinksToPmove (node->children[0]);
if (pmove_mins[node->axis] < node->dist)
AddLinksToPmove (node->children[1]);
}
/*
AddAllEntsToPmove
For debugging
*/
void
AddAllEntsToPmove (void)
{
int e;
edict_t *check;
int i;
physent_t *pe;
int pl;
pl = EDICT_TO_PROG (&sv_pr_state, sv_player);
check = NEXT_EDICT (&sv_pr_state, sv.edicts);
for (e = 1; e < sv.num_edicts; e++,
check = NEXT_EDICT (&sv_pr_state, check)) {
if (check->free)
continue;
if (SVentity (check, owner) == pl)
continue;
if (SVfloat (check, solid) == SOLID_BSP
|| SVfloat (check, solid) == SOLID_BBOX
|| SVfloat (check, solid) == SOLID_SLIDEBOX) {
if (check == sv_player)
continue;
for (i = 0; i < 3; i++)
if (SVvector (check, absmin)[i] > pmove_maxs[i]
|| SVvector (check, absmax)[i] < pmove_mins[i])
break;
if (i != 3)
continue;
pe = &pmove.physents[pmove.numphysent];
VectorCopy (SVvector (check, origin), pe->origin);
pmove.physents[pmove.numphysent].info = e;
if (SVfloat (check, solid) == SOLID_BSP)
pe->model = sv.models[(int) (SVfloat (check, modelindex))];
else {
pe->model = NULL;
VectorCopy (SVvector (check, mins), pe->mins);
VectorCopy (SVvector (check, maxs), pe->maxs);
}
if (++pmove.numphysent == MAX_PHYSENTS)
break;
}
}
}
/*
SV_PreRunCmd
Done before running a player command. Clears the touch array
*/
byte playertouch[(MAX_EDICTS + 7) / 8];
void
SV_PreRunCmd (void)
{
memset (playertouch, 0, sizeof (playertouch));
}
/*
SV_RunCmd
*/
extern qboolean nouse; // 1999-10-29 +USE fix by Maddes
void
SV_RunCmd (usercmd_t *ucmd, qboolean inside)
{
edict_t *ent;
int i, n, oldmsec;
double tmp_time;
int tmp_time1;
if (!inside) { // prevent infinite loop
host_client->msecs += ucmd->msec;
if ((sv_timekick->int_val)
&& ((tmp_time = realtime - host_client->last_check) >=
sv_timekick_interval->value)) {
tmp_time1 = tmp_time * (1000 + sv_timekick_fuzz->value);
if ((host_client->last_check != -1) // don't do it if new player
&& (host_client->msecs > tmp_time1)) {
host_client->msec_cheating++;
SV_BroadcastPrintf (PRINT_HIGH,
va
("%s thinks there are %d ms in %d seconds (Strike %d/%d)\n",
host_client->name, host_client->msecs,
(int) tmp_time, host_client->msec_cheating,
sv_timekick->int_val));
if (host_client->msec_cheating >= sv_timekick->int_val) {
SV_BroadcastPrintf (PRINT_HIGH, va ("Strike %d for %s!!\n",
host_client->
msec_cheating,
host_client->name));
SV_BroadcastPrintf (PRINT_HIGH,
"Please see http://www.quakeforge.net/speed_cheat.php for infomation on QuakeForge's time cheat protection, and to explain how some may be cheating without knowing it.\n");
SV_DropClient (host_client);
}
}
host_client->msecs = 0;
host_client->last_check = realtime;
}
}
cmd = *ucmd;
// chop up very long commands
if (cmd.msec > 50) {
oldmsec = ucmd->msec;
cmd.msec = oldmsec / 2;
SV_RunCmd (&cmd, 1);
cmd.msec = oldmsec / 2;
cmd.impulse = 0;
SV_RunCmd (&cmd, 1);
return;
}
if (!SVfloat (sv_player, fixangle))
VectorCopy (ucmd->angles, SVvector (sv_player, v_angle));
SVfloat (sv_player, button0) = ucmd->buttons & 1;
// 1999-10-29 +USE fix by Maddes start
if (!nouse) {
SVfloat (sv_player, button1) = (ucmd->buttons & 4) >> 2;
}
// 1999-10-29 +USE fix by Maddes end
SVfloat (sv_player, button2) = (ucmd->buttons & 2) >> 1;
if (ucmd->impulse)
SVfloat (sv_player, impulse) = ucmd->impulse;
if (host_client->cuff_time > realtime)
SVfloat (sv_player, button0) = SVfloat (sv_player, impulse) = 0;
//
// angles
// show 1/3 the pitch angle and all the roll angle
if (SVfloat (sv_player, health) > 0) {
if (!SVfloat (sv_player, fixangle)) {
SVvector (sv_player, angles)[PITCH] = -SVvector (sv_player, v_angle)[PITCH] / 3;
SVvector (sv_player, angles)[YAW] = SVvector (sv_player, v_angle)[YAW];
}
SVvector (sv_player, angles)[ROLL] =
SV_CalcRoll (SVvector (sv_player, angles), SVvector (sv_player, velocity)) * 4;
}
sv_frametime = min (0.1, ucmd->msec * 0.001);
if (!host_client->spectator) {
*sv_globals.frametime = sv_frametime;
*sv_globals.time = sv.time;
*sv_globals.self = EDICT_TO_PROG (&sv_pr_state,
sv_player);
PR_ExecuteProgram (&sv_pr_state,
sv_funcs.PlayerPreThink);
SV_RunThink (sv_player);
}
for (i = 0; i < 3; i++)
pmove.origin[i] =
SVvector (sv_player, origin)[i]
+ (SVvector (sv_player, mins)[i] - player_mins[i]);
VectorCopy (SVvector (sv_player, velocity), pmove.velocity);
VectorCopy (SVvector (sv_player, v_angle), pmove.angles);
pmove.flying = SVfloat (sv_player, movetype) == MOVETYPE_FLY;
pmove.spectator = host_client->spectator;
pmove.waterjumptime = SVfloat (sv_player, teleport_time);
pmove.numphysent = 1;
pmove.physents[0].model = sv.worldmodel;
pmove.cmd = *ucmd;
pmove.dead = SVfloat (sv_player, health) <= 0;
pmove.oldbuttons = host_client->oldbuttons;
movevars.entgravity = host_client->entgravity;
movevars.maxspeed = host_client->maxspeed;
for (i = 0; i < 3; i++) {
pmove_mins[i] = pmove.origin[i] - 256;
pmove_maxs[i] = pmove.origin[i] + 256;
}
#if 0
AddAllEntsToPmove ();
#else
AddLinksToPmove (sv_areanodes);
#endif
#if 0
{
int before, after;
before = PM_TestPlayerPosition (pmove.origin);
PlayerMove ();
after = PM_TestPlayerPosition (pmove.origin);
if (SVfloat (sv_player, health) > 0 && before && !after)
SV_Printf ("player %s got stuck in playermove!!!!\n",
host_client->name);
}
#else
PlayerMove ();
#endif
host_client->oldbuttons = pmove.oldbuttons;
SVfloat (sv_player, teleport_time) = pmove.waterjumptime;
SVfloat (sv_player, waterlevel) = waterlevel;
SVfloat (sv_player, watertype) = watertype;
if (onground != -1) {
SVfloat (sv_player, flags) = (int) SVfloat (sv_player, flags) | FL_ONGROUND;
SVentity (sv_player, groundentity) =
EDICT_TO_PROG (&sv_pr_state, EDICT_NUM (&sv_pr_state, pmove.physents[onground].info));
} else {
SVfloat (sv_player, flags) = (int) SVfloat (sv_player, flags) & ~FL_ONGROUND;
}
for (i = 0; i < 3; i++)
SVvector (sv_player, origin)[i] =
pmove.origin[i] - (SVvector (sv_player, mins)[i] - player_mins[i]);
#if 0
// truncate velocity the same way the net protocol will
for (i = 0; i < 3; i++)
SVvector (sv_player, velocity)[i] = (int) pmove.velocity[i];
#else
VectorCopy (pmove.velocity, SVvector (sv_player, velocity));
#endif
VectorCopy (pmove.angles, SVvector (sv_player, v_angle));
if (!host_client->spectator) {
// link into place and touch triggers
SV_LinkEdict (sv_player, true);
// touch other objects
for (i = 0; i < pmove.numtouch; i++) {
n = pmove.physents[pmove.touchindex[i]].info;
ent = EDICT_NUM (&sv_pr_state, n);
if (!SVfunc (ent, touch) || (playertouch[n / 8] & (1 << (n % 8))))
continue;
*sv_globals.self = EDICT_TO_PROG (&sv_pr_state, ent);
*sv_globals.other = EDICT_TO_PROG (&sv_pr_state, sv_player);
PR_ExecuteProgram (&sv_pr_state, SVfunc (ent, touch));
playertouch[n / 8] |= 1 << (n % 8);
}
}
}
/*
SV_PostRunCmd
Done after running a player command.
*/
void
SV_PostRunCmd (void)
{
// run post-think
if (!host_client->spectator) {
*sv_globals.time = sv.time;
*sv_globals.self = EDICT_TO_PROG (&sv_pr_state,
sv_player);
PR_ExecuteProgram (&sv_pr_state,
sv_funcs.PlayerPostThink);
SV_RunNewmis ();
} else if (SpectatorThink) {
*sv_globals.time = sv.time;
*sv_globals.self = EDICT_TO_PROG (&sv_pr_state,
sv_player);
PR_ExecuteProgram (&sv_pr_state, SpectatorThink);
}
}
/*
SV_ExecuteClientMessage
The current net_message is parsed for the given client
*/
void
SV_ExecuteClientMessage (client_t *cl)
{
int c;
const char *s;
usercmd_t oldest, oldcmd, newcmd;
client_frame_t *frame;
vec3_t o;
qboolean move_issued = false; // only allow one move command
int checksumIndex;
byte checksum, calculatedChecksum;
int seq_hash;
// calc ping time
frame = &cl->frames[cl->netchan.incoming_acknowledged & UPDATE_MASK];
frame->ping_time = realtime - frame->senttime;
// make sure the reply sequence number matches the incoming
// sequence number
if (cl->netchan.incoming_sequence >= cl->netchan.outgoing_sequence)
cl->netchan.outgoing_sequence = cl->netchan.incoming_sequence;
else
cl->send_message = false; // don't reply, sequences have
// slipped
// save time for ping calculations
cl->frames[cl->netchan.outgoing_sequence & UPDATE_MASK].senttime = realtime;
cl->frames[cl->netchan.outgoing_sequence & UPDATE_MASK].ping_time = -1;
host_client = cl;
sv_player = host_client->edict;
// seq_hash = (cl->netchan.incoming_sequence & 0xffff) ; // ^ QW_CHECK_HASH;
seq_hash = cl->netchan.incoming_sequence;
// mark time so clients will know how much to predict
// other players
cl->localtime = sv.time;
cl->delta_sequence = -1; // no delta unless requested
while (1) {
if (net_message->badread) {
SV_Printf ("SV_ReadClientMessage: badread\n");
SV_DropClient (cl);
return;
}
c = MSG_ReadByte (net_message);
if (c == -1)
return; // Ender: Patched :)
switch (c) {
default:
SV_Printf ("SV_ReadClientMessage: unknown command char\n");
SV_DropClient (cl);
return;
case clc_nop:
break;
case clc_delta:
cl->delta_sequence = MSG_ReadByte (net_message);
break;
case clc_move:
if (move_issued)
return; // someone is trying to cheat...
move_issued = true;
checksumIndex = MSG_GetReadCount (net_message);
checksum = (byte) MSG_ReadByte (net_message);
// read loss percentage
cl->lossage = MSG_ReadByte (net_message);
MSG_ReadDeltaUsercmd (&nullcmd, &oldest);
MSG_ReadDeltaUsercmd (&oldest, &oldcmd);
MSG_ReadDeltaUsercmd (&oldcmd, &newcmd);
if (cl->state != cs_spawned)
break;
// if the checksum fails, ignore the rest of the packet
calculatedChecksum =
COM_BlockSequenceCRCByte (net_message->message->data + checksumIndex +
1,
MSG_GetReadCount (net_message) -
checksumIndex - 1, seq_hash);
if (calculatedChecksum != checksum) {
Con_DPrintf
("Failed command checksum for %s(%d) (%d != %d)\n",
cl->name, cl->netchan.incoming_sequence, checksum,
calculatedChecksum);
return;
}
if (!sv.paused) {
SV_PreRunCmd ();
if (net_drop < 20) {
while (net_drop > 2) {
SV_RunCmd (&cl->lastcmd, 0);
net_drop--;
}
if (net_drop > 1)
SV_RunCmd (&oldest, 0);
if (net_drop > 0)
SV_RunCmd (&oldcmd, 0);
}
SV_RunCmd (&newcmd, 0);
SV_PostRunCmd ();
}
cl->lastcmd = newcmd;
cl->lastcmd.buttons = 0; // avoid multiple fires on lag
break;
case clc_stringcmd:
s = MSG_ReadString (net_message);
SV_ExecuteUserCommand (s);
break;
case clc_tmove:
o[0] = MSG_ReadCoord (net_message);
o[1] = MSG_ReadCoord (net_message);
o[2] = MSG_ReadCoord (net_message);
// only allowed by spectators
if (host_client->spectator) {
VectorCopy (o, SVvector (sv_player, origin));
SV_LinkEdict (sv_player, false);
}
break;
case clc_upload:
SV_NextUpload ();
break;
}
}
}
/*
SV_UserInit
*/
void
SV_UserInit (void)
{
qsort (ucmds, sizeof (ucmds) / sizeof (ucmds[0]), sizeof (ucmds[0]),
ucmds_compare);
cl_rollspeed = Cvar_Get ("cl_rollspeed", "200", CVAR_NONE, NULL,
"How quickly a player straightens out after strafing");
cl_rollangle = Cvar_Get ("cl_rollangle", "2", CVAR_NONE, NULL,
"How much a player's screen tilts when strafing");
sv_spectalk = Cvar_Get ("sv_spectalk", "1", CVAR_NONE, NULL,
"Toggles the ability of spectators to talk to players");
sv_mapcheck = Cvar_Get ("sv_mapcheck", "1", CVAR_NONE, NULL,
"Toggle the use of map checksumming to check for players who edit maps to cheat");
sv_kickfake = Cvar_Get ("sv_kickfake", "1", CVAR_NONE, NULL,
"Kick users sending to send fake talk messages");
}
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