cl_cmd.c

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