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1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19 */
20
21 #include "quakedef.h"
22
23 // for secure rcon authentication
24 #include "hmac.h"
25 #include "mdfour.h"
26 #include "image.h"
27 #include <time.h>
28
29 #include "cl_collision.h"
30
31 /// User-visible names of these CF_USERINFO cvars must be matched in CL_SetInfo()!
32 cvar_t cl_name = {CF_CLIENT | CF_ARCHIVE | CF_USERINFO, "_cl_name", "player", "player name"};
33 cvar_t cl_rate = {CF_CLIENT | CF_ARCHIVE | CF_USERINFO, "rate", "20000", "connection speed"};
34 cvar_t cl_rate_burstsize = {CF_CLIENT | CF_ARCHIVE | CF_USERINFO, "rate_burstsize", "1024", "rate control burst size"};
35 cvar_t cl_topcolor = {CF_CLIENT | CF_ARCHIVE | CF_USERINFO, "topcolor", "0", "color of your shirt"};
36 cvar_t cl_bottomcolor = {CF_CLIENT | CF_ARCHIVE | CF_USERINFO, "bottomcolor", "0", "color of your pants"};
37 cvar_t cl_team = {CF_CLIENT | CF_USERINFO | CF_ARCHIVE, "team", "none", "QW team (4 character limit, example: blue)"};
38 cvar_t cl_skin = {CF_CLIENT | CF_USERINFO | CF_ARCHIVE, "skin", "", "QW player skin name (example: base)"};
39 cvar_t cl_noaim = {CF_CLIENT | CF_USERINFO | CF_ARCHIVE, "noaim", "1", "QW option to disable vertical autoaim"};
40 cvar_t cl_pmodel = {CF_CLIENT | CF_USERINFO | CF_ARCHIVE, "pmodel", "0", "current player model number in nehahra"};
41
42 cvar_t r_fixtrans_auto = {CF_CLIENT, "r_fixtrans_auto", "0", "automatically fixtrans textures (when set to 2, it also saves the fixed versions to a fixtrans directory)"};
43
44 extern cvar_t rcon_secure;
45 extern cvar_t rcon_secure_challengetimeout;
46
47 /*
48 ===================
49 CL_ForwardToServer
50
51 Sends an entire command string over to the server, unprocessed
52 ===================
53 */
54 void CL_ForwardToServer (const char *s)
55 {
56         char temp[128];
57         if (cls.state != ca_connected)
58         {
59                 Con_Printf("Can't \"%s\", not connected\n", s);
60                 return;
61         }
62
63         if (!cls.netcon)
64                 return;
65
66         // LadyHavoc: thanks to Fuh for bringing the pure evil of SZ_Print to my
67         // attention, it has been eradicated from here, its only (former) use in
68         // all of darkplaces.
69         if (cls.protocol == PROTOCOL_QUAKEWORLD)
70                 MSG_WriteByte(&cls.netcon->message, qw_clc_stringcmd);
71         else
72                 MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
73         if ((!strncmp(s, "say ", 4) || !strncmp(s, "say_team ", 9)) && cl_locs_enable.integer)
74         {
75                 // say/say_team commands can replace % character codes with status info
76                 while (*s)
77                 {
78                         if (*s == '%' && s[1])
79                         {
80                                 // handle proquake message macros
81                                 temp[0] = 0;
82                                 switch (s[1])
83                                 {
84                                 case 'l': // current location
85                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.movement_origin);
86                                         break;
87                                 case 'h': // current health
88                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_HEALTH]);
89                                         break;
90                                 case 'a': // current armor
91                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ARMOR]);
92                                         break;
93                                 case 'x': // current rockets
94                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ROCKETS]);
95                                         break;
96                                 case 'c': // current cells
97                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_CELLS]);
98                                         break;
99                                 // silly proquake macros
100                                 case 'd': // loc at last death
101                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.lastdeathorigin);
102                                         break;
103                                 case 't': // current time
104                                         dpsnprintf(temp, sizeof(temp), "%.0f:%.0f", floor(cl.time / 60), cl.time - floor(cl.time / 60) * 60);
105                                         break;
106                                 case 'r': // rocket launcher status ("I have RL", "I need rockets", "I need RL")
107                                         if (!(cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER))
108                                                 dpsnprintf(temp, sizeof(temp), "I need RL");
109                                         else if (!cl.stats[STAT_ROCKETS])
110                                                 dpsnprintf(temp, sizeof(temp), "I need rockets");
111                                         else
112                                                 dpsnprintf(temp, sizeof(temp), "I have RL");
113                                         break;
114                                 case 'p': // powerup status (outputs "quad" "pent" and "eyes" according to status)
115                                         if (cl.stats[STAT_ITEMS] & IT_QUAD)
116                                         {
117                                                 if (temp[0])
118                                                         dp_strlcat(temp, " ", sizeof(temp));
119                                                 dp_strlcat(temp, "quad", sizeof(temp));
120                                         }
121                                         if (cl.stats[STAT_ITEMS] & IT_INVULNERABILITY)
122                                         {
123                                                 if (temp[0])
124                                                         dp_strlcat(temp, " ", sizeof(temp));
125                                                 dp_strlcat(temp, "pent", sizeof(temp));
126                                         }
127                                         if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
128                                         {
129                                                 if (temp[0])
130                                                         dp_strlcat(temp, " ", sizeof(temp));
131                                                 dp_strlcat(temp, "eyes", sizeof(temp));
132                                         }
133                                         break;
134                                 case 'w': // weapon status (outputs "SSG:NG:SNG:GL:RL:LG" with the text between : characters omitted if you lack the weapon)
135                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_SHOTGUN)
136                                                 dp_strlcat(temp, "SSG", sizeof(temp));
137                                         dp_strlcat(temp, ":", sizeof(temp));
138                                         if (cl.stats[STAT_ITEMS] & IT_NAILGUN)
139                                                 dp_strlcat(temp, "NG", sizeof(temp));
140                                         dp_strlcat(temp, ":", sizeof(temp));
141                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_NAILGUN)
142                                                 dp_strlcat(temp, "SNG", sizeof(temp));
143                                         dp_strlcat(temp, ":", sizeof(temp));
144                                         if (cl.stats[STAT_ITEMS] & IT_GRENADE_LAUNCHER)
145                                                 dp_strlcat(temp, "GL", sizeof(temp));
146                                         dp_strlcat(temp, ":", sizeof(temp));
147                                         if (cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER)
148                                                 dp_strlcat(temp, "RL", sizeof(temp));
149                                         dp_strlcat(temp, ":", sizeof(temp));
150                                         if (cl.stats[STAT_ITEMS] & IT_LIGHTNING)
151                                                 dp_strlcat(temp, "LG", sizeof(temp));
152                                         break;
153                                 default:
154                                         // not a recognized macro, print it as-is...
155                                         temp[0] = s[0];
156                                         temp[1] = s[1];
157                                         temp[2] = 0;
158                                         break;
159                                 }
160                                 // write the resulting text
161                                 SZ_Write(&cls.netcon->message, (unsigned char *)temp, (int)strlen(temp));
162                                 s += 2;
163                                 continue;
164                         }
165                         MSG_WriteByte(&cls.netcon->message, *s);
166                         s++;
167                 }
168                 MSG_WriteByte(&cls.netcon->message, 0);
169         }
170         else // any other command is passed on as-is
171                 SZ_Write(&cls.netcon->message, (const unsigned char *)s, (int)strlen(s) + 1);
172 }
173
174 void CL_ForwardToServer_f (cmd_state_t *cmd)
175 {
176         const char *s;
177         char vabuf[MAX_INPUTLINE];
178         size_t i;
179         if (!strcasecmp(Cmd_Argv(cmd, 0), "cmd"))
180         {
181                 // we want to strip off "cmd", so just send the args
182                 s = Cmd_Argc(cmd) > 1 ? Cmd_Args(cmd) : "";
183         }
184         else
185         {
186                 // we need to keep the command name, so send Cmd_Argv(cmd, 0), a space and then Cmd_Args(cmd)
187                 i = dpsnprintf(vabuf, sizeof(vabuf), "%s", Cmd_Argv(cmd, 0));
188                 if(Cmd_Argc(cmd) > 1)
189                         // (i + 1) accounts for the added space
190                         dpsnprintf(&vabuf[i], sizeof(vabuf) - (i + 1), " %s", Cmd_Args(cmd));
191                 s = vabuf;
192         }
193         // don't send an empty forward message if the user tries "cmd" by itself
194         if (!s || !*s)
195                 return;
196         CL_ForwardToServer(s);
197 }
198
199 static void CL_SendCvar_f(cmd_state_t *cmd)
200 {
201         cvar_t  *c;
202         const char *cvarname;
203         char vabuf[1024];
204
205         if(Cmd_Argc(cmd) != 2)
206                 return;
207         cvarname = Cmd_Argv(cmd, 1);
208         if (cls.state == ca_connected)
209         {
210                 c = Cvar_FindVar(&cvars_all, cvarname, CF_CLIENT | CF_SERVER);
211                 // LadyHavoc: if there is no such cvar or if it is private, send a
212                 // reply indicating that it has no value
213                 if(!c || (c->flags & CF_PRIVATE))
214                         CL_ForwardToServer(va(vabuf, sizeof(vabuf), "sentcvar %s", cvarname));
215                 else
216                         CL_ForwardToServer(va(vabuf, sizeof(vabuf), "sentcvar %s \"%s\"", c->name, c->string));
217                 return;
218         }
219 }
220
221 /*
222 ==================
223 CL_Name_f
224
225 The logic from div0-stable's Host_Name_f() is now in SV_Name_f().
226 ==================
227 */
228 static void CL_Name_f(cmd_state_t *cmd)
229 {
230         char *newNameSource;
231
232         if (Cmd_Argc(cmd) == 1)
233         {
234                 Con_Printf("name: \"%s^7\"\n", cl_name.string);
235                 return;
236         }
237
238         // in the single-arg case any enclosing quotes shall be stripped
239         newNameSource = (char *)(Cmd_Argc(cmd) == 2 ? Cmd_Argv(cmd, 1) : Cmd_Args(cmd));
240
241         if (strlen(newNameSource) >= MAX_SCOREBOARDNAME) // may as well truncate before networking
242                 newNameSource[MAX_SCOREBOARDNAME - 1] = '\0'; // this is fine (cbuf stores length)
243
244         Cvar_SetQuick(&cl_name, newNameSource);
245 }
246
247 /*
248 ==================
249 CL_Color_f
250 ==================
251 */
252 cvar_t cl_color = {CF_CLIENT | CF_ARCHIVE, "_cl_color", "0", "internal storage cvar for current player colors (changed by color command)"};
253
254 // HACK: Ignore the callbacks so this two-to-three way synchronization doesn't cause an infinite loop.
255 static void CL_Color_c(cvar_t *var)
256 {
257         char vabuf[1024];
258         void (*callback_save)(cvar_t *);
259
260         callback_save = cl_topcolor.callback;
261         cl_topcolor.callback = NULL;
262         Cvar_SetQuick(&cl_topcolor, va(vabuf, sizeof(vabuf), "%i", ((var->integer >> 4) & 15)));
263         cl_topcolor.callback = callback_save;
264
265         callback_save = cl_bottomcolor.callback;
266         cl_bottomcolor.callback = NULL;
267         Cvar_SetQuick(&cl_bottomcolor, va(vabuf, sizeof(vabuf), "%i", (var->integer & 15)));
268         cl_bottomcolor.callback = callback_save;
269 }
270
271 static void CL_Topcolor_c(cvar_t *var)
272 {
273         char vabuf[1024];
274         void (*callback_save)(cvar_t *);
275
276         callback_save = cl_color.callback;
277         cl_color.callback = NULL;
278         Cvar_SetQuick(&cl_color, va(vabuf, sizeof(vabuf), "%i", var->integer*16 + cl_bottomcolor.integer));
279         cl_color.callback = callback_save;
280 }
281
282 static void CL_Bottomcolor_c(cvar_t *var)
283 {
284         char vabuf[1024];
285         void (*callback_save)(cvar_t *);
286
287         callback_save = cl_color.callback;
288         cl_color.callback = NULL;
289         Cvar_SetQuick(&cl_color, va(vabuf, sizeof(vabuf), "%i", cl_topcolor.integer*16 + var->integer));
290         cl_color.callback = callback_save;
291 }
292
293 static void CL_Color_f(cmd_state_t *cmd)
294 {
295         int top, bottom;
296
297         if (Cmd_Argc(cmd) == 1)
298         {
299                 if (cmd->source == src_local)
300                 {
301                         Con_Printf("\"color\" is \"%i %i\"\n", cl_topcolor.integer, cl_bottomcolor.integer);
302                         Con_Print("color <0-15> [0-15]\n");
303                 }
304                 return;
305         }
306
307         if (Cmd_Argc(cmd) == 2)
308                 top = bottom = atoi(Cmd_Argv(cmd, 1));
309         else
310         {
311                 top = atoi(Cmd_Argv(cmd, 1));
312                 bottom = atoi(Cmd_Argv(cmd, 2));
313         }
314         /*
315          * This is just a convenient way to change topcolor and bottomcolor
316          * We can't change cl_color from here directly because topcolor and
317          * bottomcolor may be changed separately and do not call this function.
318          * So it has to be changed when the userinfo strings are updated, which
319          * happens twice here. Perhaps find a cleaner way?
320          */
321
322         top = top >= 0 ? top : cl_topcolor.integer;
323         bottom = bottom >= 0 ? bottom : cl_bottomcolor.integer;
324
325         top &= 15;
326         bottom &= 15;
327
328         // LadyHavoc: allowing skin colormaps 14 and 15 by commenting this out
329         //if (top > 13)
330         //      top = 13;
331         //if (bottom > 13)
332         //      bottom = 13;
333
334         if (cmd->source == src_local)
335         {
336                 Cvar_SetValueQuick(&cl_topcolor, top);
337                 Cvar_SetValueQuick(&cl_bottomcolor, bottom);
338                 return;
339         }
340 }
341
342 /*
343 ====================
344 CL_User_f
345
346 user <name or userid>
347
348 Dump userdata / masterdata for a user
349 ====================
350 */
351 static void CL_User_f(cmd_state_t *cmd) // credit: taken from QuakeWorld
352 {
353         int             uid;
354         int             i;
355
356         if (Cmd_Argc(cmd) != 2)
357         {
358                 Con_Printf ("Usage: user <username / userid>\n");
359                 return;
360         }
361
362         uid = atoi(Cmd_Argv(cmd, 1));
363
364         for (i = 0;i < cl.maxclients;i++)
365         {
366                 if (!cl.scores[i].name[0])
367                         continue;
368                 if (cl.scores[i].qw_userid == uid || !strcasecmp(cl.scores[i].name, Cmd_Argv(cmd, 1)))
369                 {
370                         InfoString_Print(cl.scores[i].qw_userinfo);
371                         return;
372                 }
373         }
374         Con_Printf ("User not in server.\n");
375 }
376
377 /*
378 ====================
379 CL_Users_f
380
381 Dump userids for all current players
382 ====================
383 */
384 static void CL_Users_f(cmd_state_t *cmd) // credit: taken from QuakeWorld
385 {
386         int             i;
387         int             c;
388
389         c = 0;
390         Con_Printf ("userid frags name\n");
391         Con_Printf ("------ ----- ----\n");
392         for (i = 0;i < cl.maxclients;i++)
393         {
394                 if (cl.scores[i].name[0])
395                 {
396                         Con_Printf ("%6i %4i %s\n", cl.scores[i].qw_userid, cl.scores[i].frags, cl.scores[i].name);
397                         c++;
398                 }
399         }
400
401         Con_Printf ("%i total users\n", c);
402 }
403
404 /*
405 ====================
406 CL_Packet_f
407
408 packet <destination> <contents>
409
410 Contents allows \n escape character
411 ====================
412 */
413 static void CL_Packet_f(cmd_state_t *cmd) // credit: taken from QuakeWorld
414 {
415         char send[2048];
416         int i, l;
417         const char *in;
418         char *out;
419         lhnetaddress_t address;
420         lhnetsocket_t *mysocket;
421
422         if (Cmd_Argc(cmd) != 3)
423         {
424                 Con_Printf ("packet <destination> <contents>\n");
425                 return;
426         }
427
428         if (!LHNETADDRESS_FromString (&address, Cmd_Argv(cmd, 1), sv_netport.integer))
429         {
430                 Con_Printf ("Bad address\n");
431                 return;
432         }
433
434         in = Cmd_Argv(cmd, 2);
435         out = send+4;
436         send[0] = send[1] = send[2] = send[3] = -1;
437
438         l = (int)strlen (in);
439         for (i=0 ; i<l ; i++)
440         {
441                 if (out >= send + sizeof(send) - 1)
442                         break;
443                 if (in[i] == '\\' && in[i+1] == 'n')
444                 {
445                         *out++ = '\n';
446                         i++;
447                 }
448                 else if (in[i] == '\\' && in[i+1] == '0')
449                 {
450                         *out++ = '\0';
451                         i++;
452                 }
453                 else if (in[i] == '\\' && in[i+1] == 't')
454                 {
455                         *out++ = '\t';
456                         i++;
457                 }
458                 else if (in[i] == '\\' && in[i+1] == 'r')
459                 {
460                         *out++ = '\r';
461                         i++;
462                 }
463                 else if (in[i] == '\\' && in[i+1] == '"')
464                 {
465                         *out++ = '\"';
466                         i++;
467                 }
468                 else
469                         *out++ = in[i];
470         }
471
472         mysocket = NetConn_ChooseClientSocketForAddress(&address);
473         if (!mysocket)
474                 mysocket = NetConn_ChooseServerSocketForAddress(&address);
475         if (mysocket)
476                 NetConn_Write(mysocket, send, out - send, &address);
477 }
478
479 /*
480 =====================
481 CL_PQRcon_f
482
483 ProQuake rcon support
484 =====================
485 */
486 static void CL_PQRcon_f(cmd_state_t *cmd)
487 {
488         int n;
489         const char *e;
490         lhnetsocket_t *mysocket;
491
492         if (Cmd_Argc(cmd) == 1)
493         {
494                 Con_Printf("%s: Usage: %s command\n", Cmd_Argv(cmd, 0), Cmd_Argv(cmd, 0));
495                 return;
496         }
497
498         if (!rcon_password.string || !rcon_password.string[0] || rcon_secure.integer > 0)
499         {
500                 Con_Printf ("You must set rcon_password before issuing an pqrcon command, and rcon_secure must be 0.\n");
501                 return;
502         }
503
504         e = strchr(rcon_password.string, ' ');
505         n = e ? e-rcon_password.string : (int)strlen(rcon_password.string);
506
507         if (cls.netcon)
508                 cls.rcon_address = cls.netcon->peeraddress;
509         else
510         {
511                 if (!rcon_address.string[0])
512                 {
513                         Con_Printf ("You must either be connected, or set the rcon_address cvar to issue rcon commands\n");
514                         return;
515                 }
516                 LHNETADDRESS_FromString(&cls.rcon_address, rcon_address.string, sv_netport.integer);
517         }
518         mysocket = NetConn_ChooseClientSocketForAddress(&cls.rcon_address);
519         if (mysocket)
520         {
521                 sizebuf_t buf;
522                 unsigned char bufdata[64];
523                 buf.data = bufdata;
524                 SZ_Clear(&buf);
525                 MSG_WriteLong(&buf, 0);
526                 MSG_WriteByte(&buf, CCREQ_RCON);
527                 SZ_Write(&buf, (const unsigned char*)rcon_password.string, n);
528                 MSG_WriteByte(&buf, 0); // terminate the (possibly partial) string
529                 MSG_WriteString(&buf, Cmd_Args(cmd));
530                 StoreBigLong(buf.data, NETFLAG_CTL | (buf.cursize & NETFLAG_LENGTH_MASK));
531                 NetConn_Write(mysocket, buf.data, buf.cursize, &cls.rcon_address);
532                 SZ_Clear(&buf);
533         }
534 }
535
536 /*
537 =====================
538 CL_Rcon_f
539
540   Send the rest of the command line over as
541   an unconnected command.
542 =====================
543 */
544 static void CL_Rcon_f(cmd_state_t *cmd) // credit: taken from QuakeWorld
545 {
546         int i, n;
547         const char *e;
548         lhnetsocket_t *mysocket;
549
550         if (Cmd_Argc(cmd) == 1)
551         {
552                 Con_Printf("%s: Usage: %s command\n", Cmd_Argv(cmd, 0), Cmd_Argv(cmd, 0));
553                 return;
554         }
555
556         if (!rcon_password.string || !rcon_password.string[0])
557         {
558                 Con_Printf ("You must set rcon_password before issuing an rcon command.\n");
559                 return;
560         }
561
562         e = strchr(rcon_password.string, ' ');
563         n = e ? e-rcon_password.string : (int)strlen(rcon_password.string);
564
565         if (cls.netcon)
566                 cls.rcon_address = cls.netcon->peeraddress;
567         else
568         {
569                 if (!rcon_address.string[0])
570                 {
571                         Con_Printf ("You must either be connected, or set the rcon_address cvar to issue rcon commands\n");
572                         return;
573                 }
574                 LHNETADDRESS_FromString(&cls.rcon_address, rcon_address.string, sv_netport.integer);
575         }
576         mysocket = NetConn_ChooseClientSocketForAddress(&cls.rcon_address);
577         if (mysocket && Cmd_Args(cmd)[0])
578         {
579                 // simply put together the rcon packet and send it
580                 if(Cmd_Argv(cmd, 0)[0] == 's' || rcon_secure.integer > 1)
581                 {
582                         if(cls.rcon_commands[cls.rcon_ringpos][0])
583                         {
584                                 char s[128];
585                                 LHNETADDRESS_ToString(&cls.rcon_addresses[cls.rcon_ringpos], s, sizeof(s), true);
586                                 Con_Printf("rcon to %s (for command %s) failed: too many buffered commands (possibly increase MAX_RCONS)\n", s, cls.rcon_commands[cls.rcon_ringpos]);
587                                 cls.rcon_commands[cls.rcon_ringpos][0] = 0;
588                                 --cls.rcon_trying;
589                         }
590                         for (i = 0;i < MAX_RCONS;i++)
591                                 if(cls.rcon_commands[i][0])
592                                         if (!LHNETADDRESS_Compare(&cls.rcon_address, &cls.rcon_addresses[i]))
593                                                 break;
594                         ++cls.rcon_trying;
595                         if(i >= MAX_RCONS)
596                                 NetConn_WriteString(mysocket, "\377\377\377\377getchallenge", &cls.rcon_address); // otherwise we'll request the challenge later
597                         dp_strlcpy(cls.rcon_commands[cls.rcon_ringpos], Cmd_Args(cmd), sizeof(cls.rcon_commands[cls.rcon_ringpos]));
598                         cls.rcon_addresses[cls.rcon_ringpos] = cls.rcon_address;
599                         cls.rcon_timeout[cls.rcon_ringpos] = host.realtime + rcon_secure_challengetimeout.value;
600                         cls.rcon_ringpos = (cls.rcon_ringpos + 1) % MAX_RCONS;
601                 }
602                 else if(rcon_secure.integer > 0)
603                 {
604                         char buf[1500];
605                         char argbuf[1500];
606                         dpsnprintf(argbuf, sizeof(argbuf), "%ld.%06d %s", (long) time(NULL), (int) (rand() % 1000000), Cmd_Args(cmd));
607                         memcpy(buf, "\377\377\377\377srcon HMAC-MD4 TIME ", 24);
608                         if(HMAC_MDFOUR_16BYTES((unsigned char *) (buf + 24), (unsigned char *) argbuf, (int)strlen(argbuf), (unsigned char *) rcon_password.string, n))
609                         {
610                                 buf[40] = ' ';
611                                 dp_strlcpy(buf + 41, argbuf, sizeof(buf) - 41);
612                                 NetConn_Write(mysocket, buf, 41 + (int)strlen(buf + 41), &cls.rcon_address);
613                         }
614                 }
615                 else
616                 {
617                         char buf[1500];
618                         memcpy(buf, "\377\377\377\377", 4);
619                         dpsnprintf(buf+4, sizeof(buf)-4, "rcon %.*s %s",  n, rcon_password.string, Cmd_Args(cmd));
620                         NetConn_WriteString(mysocket, buf, &cls.rcon_address);
621                 }
622         }
623 }
624
625 /*
626 ==================
627 CL_FullServerinfo_f
628
629 Sent by server when serverinfo changes
630 ==================
631 */
632 // TODO: shouldn't this be a cvar instead?
633 static void CL_FullServerinfo_f(cmd_state_t *cmd) // credit: taken from QuakeWorld
634 {
635         char temp[512];
636         if (Cmd_Argc(cmd) != 2)
637         {
638                 Con_Printf ("usage: fullserverinfo <complete info string>\n");
639                 return;
640         }
641
642         dp_strlcpy (cl.qw_serverinfo, Cmd_Argv(cmd, 1), sizeof(cl.qw_serverinfo));
643         InfoString_GetValue(cl.qw_serverinfo, "teamplay", temp, sizeof(temp));
644         cl.qw_teamplay = atoi(temp);
645 }
646
647 /*
648 ==================
649 CL_FullInfo_f
650
651 Allow clients to change userinfo
652 ==================
653 Casey was here :)
654 */
655 static void CL_FullInfo_f(cmd_state_t *cmd) // credit: taken from QuakeWorld
656 {
657         char key[512];
658         char value[512];
659         const char *s;
660
661         if (Cmd_Argc(cmd) != 2)
662         {
663                 Con_Printf ("fullinfo <complete info string>\n");
664                 return;
665         }
666
667         s = Cmd_Argv(cmd, 1);
668         if (*s == '\\')
669                 s++;
670         while (*s)
671         {
672                 size_t len = strcspn(s, "\\");
673                 if (len >= sizeof(key)) {
674                         len = sizeof(key) - 1;
675                 }
676                 dp_strlcpy(key, s, len + 1);
677                 s += len;
678                 if (!*s)
679                 {
680                         Con_Printf ("MISSING VALUE\n");
681                         return;
682                 }
683                 ++s; // Skip over backslash.
684
685                 len = strcspn(s, "\\");
686                 if (len >= sizeof(value)) {
687                         len = sizeof(value) - 1;
688                 }
689                 dp_strlcpy(value, s, len + 1);
690
691                 CL_SetInfo(key, value, false, false, false, false);
692
693                 s += len;
694                 if (!*s)
695                 {
696                         break;
697                 }
698                 ++s; // Skip over backslash.
699         }
700 }
701
702 /*
703 ==================
704 CL_SetInfo_f
705
706 Allow clients to change userinfo
707 ==================
708 */
709 static void CL_SetInfo_f(cmd_state_t *cmd) // credit: taken from QuakeWorld
710 {
711         if (Cmd_Argc(cmd) == 1)
712         {
713                 InfoString_Print(cls.userinfo);
714                 return;
715         }
716         if (Cmd_Argc(cmd) != 3)
717         {
718                 Con_Printf ("usage: setinfo [ <key> <value> ]\n");
719                 return;
720         }
721         CL_SetInfo(Cmd_Argv(cmd, 1), Cmd_Argv(cmd, 2), true, false, false, false);
722 }
723
724 static void CL_PingPLReport_f(cmd_state_t *cmd)
725 {
726         char *errbyte;
727         int i;
728         int l = Cmd_Argc(cmd);
729         if (l > cl.maxclients)
730                 l = cl.maxclients;
731         for (i = 0;i < l;i++)
732         {
733                 cl.scores[i].qw_ping = atoi(Cmd_Argv(cmd, 1+i*2));
734                 cl.scores[i].qw_packetloss = strtol(Cmd_Argv(cmd, 1+i*2+1), &errbyte, 0);
735                 if(errbyte && *errbyte == ',')
736                         cl.scores[i].qw_movementloss = atoi(errbyte + 1);
737                 else
738                         cl.scores[i].qw_movementloss = 0;
739         }
740 }
741
742 void CL_InitCommands(void)
743 {
744         dpsnprintf(cls.userinfo, sizeof(cls.userinfo), "\\name\\player\\team\\none\\topcolor\\0\\bottomcolor\\0\\rate\\10000\\msg\\1\\noaim\\1\\*ver\\dp");
745
746         /* In Quake `name` is a command that concatenates its arguments (quotes unnecessary)
747          * which is expected in most DP-based games.
748          * In QuakeWorld it's a cvar which requires quotes if spaces are used.
749          */
750         Cvar_RegisterVariable(&cl_name);
751         if ((0)) // TODO: if (gamemode == GAME_QUAKEWORLD)
752                 Cvar_RegisterVirtual(&cl_name, "name");
753         else
754                 Cmd_AddCommand(CF_CLIENT, "name", CL_Name_f, "change your player name");
755
756         Cvar_RegisterVariable(&cl_rate);
757         Cvar_RegisterVirtual(&cl_rate, "_cl_rate");
758         Cvar_RegisterVariable(&cl_rate_burstsize);
759         Cvar_RegisterVirtual(&cl_rate_burstsize, "_cl_rate_burstsize");
760         Cvar_RegisterVariable(&cl_pmodel);
761         Cvar_RegisterVirtual(&cl_pmodel, "_cl_pmodel");
762         Cvar_RegisterVariable(&cl_color);
763         Cvar_RegisterCallback(&cl_color, CL_Color_c);
764         Cvar_RegisterVariable(&cl_topcolor);
765         Cvar_RegisterCallback(&cl_topcolor, CL_Topcolor_c);
766         Cvar_RegisterVariable(&cl_bottomcolor);
767         Cvar_RegisterCallback(&cl_bottomcolor, CL_Bottomcolor_c);
768         Cvar_RegisterVariable(&r_fixtrans_auto);
769         Cvar_RegisterVariable(&cl_team);
770         Cvar_RegisterVariable(&cl_skin);
771         Cvar_RegisterVariable(&cl_noaim);       
772
773         Cmd_AddCommand(CF_CLIENT | CF_CLIENT_FROM_SERVER, "cmd", CL_ForwardToServer_f, "send a console commandline to the server (used by some mods)");
774         Cmd_AddCommand(CF_CLIENT, "color", CL_Color_f, "change your player shirt and pants colors");
775         Cmd_AddCommand(CF_CLIENT, "rcon", CL_Rcon_f, "sends a command to the server console (if your rcon_password matches the server's rcon_password), or to the address specified by rcon_address when not connected (again rcon_password must match the server's); note: if rcon_secure is set, client and server clocks must be synced e.g. via NTP");
776         Cmd_AddCommand(CF_CLIENT, "srcon", CL_Rcon_f, "sends a command to the server console (if your rcon_password matches the server's rcon_password), or to the address specified by rcon_address when not connected (again rcon_password must match the server's); this always works as if rcon_secure is set; note: client and server clocks must be synced e.g. via NTP");
777         Cmd_AddCommand(CF_CLIENT, "pqrcon", CL_PQRcon_f, "sends a command to a proquake server console (if your rcon_password matches the server's rcon_password), or to the address specified by rcon_address when not connected (again rcon_password must match the server's)");
778         Cmd_AddCommand(CF_SHARED, "user", CL_User_f, "prints additional information about a player number or name on the scoreboard");
779         Cmd_AddCommand(CF_SHARED, "users", CL_Users_f, "prints additional information about all players on the scoreboard");
780         Cmd_AddCommand(CF_CLIENT, "packet", CL_Packet_f, "send a packet to the specified address:port containing a text string");
781         Cmd_AddCommand(CF_CLIENT, "fullinfo", CL_FullInfo_f, "allows client to modify their userinfo");
782         Cmd_AddCommand(CF_CLIENT, "setinfo", CL_SetInfo_f, "modifies your userinfo");
783         Cmd_AddCommand(CF_CLIENT, "fixtrans", Image_FixTransparentPixels_f, "change alpha-zero pixels in an image file to sensible values, and write out a new TGA (warning: SLOW)");
784         host.hook.CL_SendCvar = CL_SendCvar_f;
785
786         // commands that are only sent by server to client for execution
787         Cmd_AddCommand(CF_CLIENT_FROM_SERVER, "pingplreport", CL_PingPLReport_f, "command sent by server containing client ping and packet loss values for scoreboard, triggered by pings command from client (not used by QW servers)");
788         Cmd_AddCommand(CF_CLIENT_FROM_SERVER, "fullserverinfo", CL_FullServerinfo_f, "internal use only, sent by server to client to update client's local copy of serverinfo string");
789 }