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 // cmd.c -- Quake script command processing module
  21
  22 #include "quakedef.h"
  23 #include "thread.h"
  24
  25 cmd_state_t cmd_client;
  26 cmd_state_t cmd_server;
  27 cmd_state_t cmd_serverfromclient;
  28
  29 cmd_userdefined_t cmd_userdefined_all;
  30 cmd_userdefined_t cmd_userdefined_null;
  31
  32 typedef struct cmd_iter_s {
  33         cmd_state_t *cmd;
  34 }
  35 cmd_iter_t;
  36
  37 static cmd_iter_t cmd_iter_all[] = {
  38         {&cmd_client},
  39         {&cmd_server},
  40         {&cmd_serverfromclient},
  41         {NULL},
  42 };
  43
  44
  45 // we only run the +whatever commandline arguments once
  46 qboolean host_stuffcmdsrun = false;
  47
  48 //=============================================================================
  49
  50 void Cbuf_Lock(cmd_state_t *cmd)
  51 {
  52         Thread_AtomicLock(&cmd->text_lock);
  53 }
  54
  55 void Cbuf_Unlock(cmd_state_t *cmd)
  56 {
  57         Thread_AtomicUnlock(&cmd->text_lock);
  58 }
  59
  60
  61 /*
  62 ============
  63 Cmd_Wait_f
  64
  65 Causes execution of the remainder of the command buffer to be delayed until
  66 next frame.  This allows commands like:
  67 bind g "impulse 5 ; +attack ; wait ; -attack ; impulse 2"
  68 ============
  69 */
  70 static void Cmd_Wait_f (cmd_state_t *cmd)
  71 {
  72         cmd->wait = true;
  73 }
  74
  75 /*
  76 ============
  77 Cmd_Defer_f
  78
  79 Cause a command to be executed after a delay.
  80 ============
  81 */
  82 static void Cmd_Defer_f (cmd_state_t *cmd)
  83 {
  84         if(Cmd_Argc(cmd) == 1)
  85         {
  86                 cmddeferred_t *next = cmd->deferred_list;
  87                 if(!next)
  88                         Con_Printf("No commands are pending.\n");
  89                 while(next)
  90                 {
  91                         Con_Printf("-> In %9.2f: %s\n", next->delay, next->value);
  92                         next = next->next;
  93                 }
  94         } else if(Cmd_Argc(cmd) == 2 && !strcasecmp("clear", Cmd_Argv(cmd, 1)))
  95         {
  96                 while(cmd->deferred_list)
  97                 {
  98                         cmddeferred_t *defcmd = cmd->deferred_list;
  99                         cmd->deferred_list = defcmd->next;
 100                         Mem_Free(defcmd->value);
 101                         Mem_Free(defcmd);
 102                 }
 103         } else if(Cmd_Argc(cmd) == 3)
 104         {
 105                 const char *value = Cmd_Argv(cmd, 2);
 106                 cmddeferred_t *defcmd = (cmddeferred_t*)Mem_Alloc(tempmempool, sizeof(*defcmd));
 107                 size_t len = strlen(value);
 108
 109                 defcmd->delay = atof(Cmd_Argv(cmd, 1));
 110                 defcmd->value = (char*)Mem_Alloc(tempmempool, len+1);
 111                 memcpy(defcmd->value, value, len+1);
 112                 defcmd->next = NULL;
 113
 114                 if(cmd->deferred_list)
 115                 {
 116                         cmddeferred_t *next = cmd->deferred_list;
 117                         while(next->next)
 118                                 next = next->next;
 119                         next->next = defcmd;
 120                 } else
 121                         cmd->deferred_list = defcmd;
 122                 /* Stupid me... this changes the order... so commands with the same delay go blub :S
 123                   defcmd->next = cmd_deferred_list;
 124                   cmd_deferred_list = defcmd;*/
 125         } else {
 126                 Con_Printf("usage: defer <seconds> <command>\n"
 127                            "       defer clear\n");
 128                 return;
 129         }
 130 }
 131
 132 /*
 133 ============
 134 Cmd_Centerprint_f
 135
 136 Print something to the center of the screen using SCR_Centerprint
 137 ============
 138 */
 139 static void Cmd_Centerprint_f (cmd_state_t *cmd)
 140 {
 141         char msg[MAX_INPUTLINE];
 142         unsigned int i, c, p;
 143         c = Cmd_Argc(cmd);
 144         if(c >= 2)
 145         {
 146                 strlcpy(msg, Cmd_Argv(cmd,1), sizeof(msg));
 147                 for(i = 2; i < c; ++i)
 148                 {
 149                         strlcat(msg, " ", sizeof(msg));
 150                         strlcat(msg, Cmd_Argv(cmd, i), sizeof(msg));
 151                 }
 152                 c = (unsigned int)strlen(msg);
 153                 for(p = 0, i = 0; i < c; ++i)
 154                 {
 155                         if(msg[i] == '\\')
 156                         {
 157                                 if(msg[i+1] == 'n')
 158                                         msg[p++] = '\n';
 159                                 else if(msg[i+1] == '\\')
 160                                         msg[p++] = '\\';
 161                                 else {
 162                                         msg[p++] = '\\';
 163                                         msg[p++] = msg[i+1];
 164                                 }
 165                                 ++i;
 166                         } else {
 167                                 msg[p++] = msg[i];
 168                         }
 169                 }
 170                 msg[p] = '\0';
 171                 SCR_CenterPrint(msg);
 172         }
 173 }
 174
 175 /*
 176 =============================================================================
 177
 178                                                 COMMAND BUFFER
 179
 180 =============================================================================
 181 */
 182
 183 /*
 184 ============
 185 Cbuf_AddText
 186
 187 Adds command text at the end of the buffer
 188 ============
 189 */
 190 void Cbuf_AddText (cmd_state_t *cmd, const char *text)
 191 {
 192         int             l;
 193
 194         l = (int)strlen(text);
 195
 196         Cbuf_Lock(cmd);
 197         if (cmd->text.maxsize - cmd->text.cursize <= l)
 198                 Con_Print("Cbuf_AddText: overflow\n");
 199         else
 200                 SZ_Write(&cmd->text, (const unsigned char *)text, l);
 201         Cbuf_Unlock(cmd);
 202 }
 203
 204
 205 /*
 206 ============
 207 Cbuf_InsertText
 208
 209 Adds command text immediately after the current command
 210 Adds a \n to the text
 211 FIXME: actually change the command buffer to do less copying
 212 ============
 213 */
 214 void Cbuf_InsertText (cmd_state_t *cmd, const char *text)
 215 {
 216         size_t l = strlen(text);
 217         Cbuf_Lock(cmd);
 218         // we need to memmove the existing text and stuff this in before it...
 219         if (cmd->text.cursize + l >= (size_t)cmd->text.maxsize)
 220                 Con_Print("Cbuf_InsertText: overflow\n");
 221         else
 222         {
 223                 // we don't have a SZ_Prepend, so...
 224                 memmove(cmd->text.data + l, cmd->text.data, cmd->text.cursize);
 225                 cmd->text.cursize += (int)l;
 226                 memcpy(cmd->text.data, text, l);
 227         }
 228         Cbuf_Unlock(cmd);
 229 }
 230
 231 /*
 232 ============
 233 Cbuf_Execute_Deferred --blub
 234 ============
 235 */
 236 static void Cbuf_Execute_Deferred (cmd_state_t *cmd)
 237 {
 238         cmddeferred_t *defcmd, *prev;
 239         double eat;
 240         if (realtime - cmd->deferred_oldrealtime < 0 || realtime - cmd->deferred_oldrealtime > 1800) cmd->deferred_oldrealtime = realtime;
 241         eat = realtime - cmd->deferred_oldrealtime;
 242         if (eat < (1.0 / 120.0))
 243                 return;
 244         cmd->deferred_oldrealtime = realtime;
 245         prev = NULL;
 246         defcmd = cmd->deferred_list;
 247         while(defcmd)
 248         {
 249                 defcmd->delay -= eat;
 250                 if(defcmd->delay <= 0)
 251                 {
 252                         Cbuf_AddText(cmd, defcmd->value);
 253                         Cbuf_AddText(cmd, ";\n");
 254                         Mem_Free(defcmd->value);
 255
 256                         if(prev) {
 257                                 prev->next = defcmd->next;
 258                                 Mem_Free(defcmd);
 259                                 defcmd = prev->next;
 260                         } else {
 261                                 cmd->deferred_list = defcmd->next;
 262                                 Mem_Free(defcmd);
 263                                 defcmd = cmd->deferred_list;
 264                         }
 265                         continue;
 266                 }
 267                 prev = defcmd;
 268                 defcmd = defcmd->next;
 269         }
 270 }
 271
 272 /*
 273 ============
 274 Cbuf_Execute
 275 ============
 276 */
 277 static qboolean Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias );
 278 void Cbuf_Execute (cmd_state_t *cmd)
 279 {
 280         int i;
 281         char *text;
 282         char line[MAX_INPUTLINE];
 283         char preprocessed[MAX_INPUTLINE];
 284         char *firstchar;
 285         qboolean quotes;
 286         char *comment;
 287
 288         // LadyHavoc: making sure the tokenizebuffer doesn't get filled up by repeated crashes
 289         cmd->tokenizebufferpos = 0;
 290
 291         while (cmd->text.cursize)
 292         {
 293 // find a \n or ; line break
 294                 text = (char *)cmd->text.data;
 295
 296                 quotes = false;
 297                 comment = NULL;
 298                 for (i=0 ; i < cmd->text.cursize ; i++)
 299                 {
 300                         if(!comment)
 301                         {
 302                                 if (text[i] == '"')
 303                                         quotes = !quotes;
 304
 305                                 if(quotes)
 306                                 {
 307                                         // make sure i doesn't get > cursize which causes a negative
 308                                         // size in memmove, which is fatal --blub
 309                                         if (i < (cmd->text.cursize-1) && (text[i] == '\\' && (text[i+1] == '"' || text[i+1] == '\\')))
 310                                                 i++;
 311                                 }
 312                                 else
 313                                 {
 314                                         if(text[i] == '/' && text[i + 1] == '/' && (i == 0 || ISWHITESPACE(text[i-1])))
 315                                                 comment = &text[i];
 316                                         if(text[i] == ';')
 317                                                 break;  // don't break if inside a quoted string or comment
 318                                 }
 319                         }
 320
 321                         if (text[i] == '\r' || text[i] == '\n')
 322                                 break;
 323                 }
 324
 325                 // better than CRASHING on overlong input lines that may SOMEHOW enter the buffer
 326                 if(i >= MAX_INPUTLINE)
 327                 {
 328                         Con_Warnf("Warning: console input buffer had an overlong line. Ignored.\n");
 329                         line[0] = 0;
 330                 }
 331                 else
 332                 {
 333                         memcpy (line, text, comment ? (comment - text) : i);
 334                         line[comment ? (comment - text) : i] = 0;
 335                 }
 336
 337 // delete the text from the command buffer and move remaining commands down
 338 // this is necessary because commands (exec, alias) can insert data at the
 339 // beginning of the text buffer
 340
 341                 if (i == cmd->text.cursize)
 342                         cmd->text.cursize = 0;
 343                 else
 344                 {
 345                         i++;
 346                         cmd->text.cursize -= i;
 347                         memmove (cmd->text.data, text+i, cmd->text.cursize);
 348                 }
 349
 350 // execute the command line
 351                 firstchar = line;
 352                 while(*firstchar && ISWHITESPACE(*firstchar))
 353                         ++firstchar;
 354                 if(
 355                         (strncmp(firstchar, "alias", 5) || !ISWHITESPACE(firstchar[5]))
 356                         &&
 357                         (strncmp(firstchar, "bind", 4) || !ISWHITESPACE(firstchar[4]))
 358                         &&
 359                         (strncmp(firstchar, "in_bind", 7) || !ISWHITESPACE(firstchar[7]))
 360                 )
 361                 {
 362                         if(Cmd_PreprocessString( cmd, line, preprocessed, sizeof(preprocessed), NULL ))
 363                                 Cmd_ExecuteString (cmd, preprocessed, src_command, false);
 364                 }
 365                 else
 366                 {
 367                         Cmd_ExecuteString (cmd, line, src_command, false);
 368                 }
 369
 370                 if (cmd->wait)
 371                 {       // skip out while text still remains in buffer, leaving it
 372                         // for next frame
 373                         cmd->wait = false;
 374                         break;
 375                 }
 376         }
 377 }
 378
 379 void Cbuf_Frame(cmd_state_t *cmd)
 380 {
 381         Cbuf_Execute_Deferred(cmd);
 382         if (cmd->text.cursize)
 383         {
 384                 SV_LockThreadMutex();
 385                 Cbuf_Execute(cmd);
 386                 SV_UnlockThreadMutex();
 387         }
 388 }
 389
 390 /*
 391 ==============================================================================
 392
 393                                                 SCRIPT COMMANDS
 394
 395 ==============================================================================
 396 */
 397
 398 extern qboolean host_init;
 399
 400 /*
 401 ===============
 402 Cmd_StuffCmds_f
 403
 404 Adds command line parameters as script statements
 405 Commands lead with a +, and continue until a - or another +
 406 quake +prog jctest.qp +cmd amlev1
 407 quake -nosound +cmd amlev1
 408 ===============
 409 */
 410 static void Cmd_StuffCmds_f (cmd_state_t *cmd)
 411 {
 412         int             i, j, l;
 413         // this is for all commandline options combined (and is bounds checked)
 414         char    build[MAX_INPUTLINE];
 415
 416         // come back later so we don't crash
 417         if(host_init)
 418                 return;
 419
 420         if (Cmd_Argc (cmd) != 1)
 421         {
 422                 Con_Print("stuffcmds : execute command line parameters\n");
 423                 return;
 424         }
 425
 426         // no reason to run the commandline arguments twice
 427         if (host_stuffcmdsrun)
 428                 return;
 429
 430         host_stuffcmdsrun = true;
 431         build[0] = 0;
 432         l = 0;
 433         for (i = 0;i < com_argc;i++)
 434         {
 435                 if (com_argv[i] && com_argv[i][0] == '+' && (com_argv[i][1] < '0' || com_argv[i][1] > '9') && l + strlen(com_argv[i]) - 1 <= sizeof(build) - 1)
 436                 {
 437                         j = 1;
 438                         while (com_argv[i][j])
 439                                 build[l++] = com_argv[i][j++];
 440                         i++;
 441                         for (;i < com_argc;i++)
 442                         {
 443                                 if (!com_argv[i])
 444                                         continue;
 445                                 if ((com_argv[i][0] == '+' || com_argv[i][0] == '-') && (com_argv[i][1] < '0' || com_argv[i][1] > '9'))
 446                                         break;
 447                                 if (l + strlen(com_argv[i]) + 4 > sizeof(build) - 1)
 448                                         break;
 449                                 build[l++] = ' ';
 450                                 if (strchr(com_argv[i], ' '))
 451                                         build[l++] = '\"';
 452                                 for (j = 0;com_argv[i][j];j++)
 453                                         build[l++] = com_argv[i][j];
 454                                 if (strchr(com_argv[i], ' '))
 455                                         build[l++] = '\"';
 456                         }
 457                         build[l++] = '\n';
 458                         i--;
 459                 }
 460         }
 461         // now terminate the combined string and prepend it to the command buffer
 462         // we already reserved space for the terminator
 463         build[l++] = 0;
 464         Cbuf_InsertText (cmd, build);
 465 }
 466
 467 static void Cmd_Exec(cmd_state_t *cmd, const char *filename)
 468 {
 469         char *f;
 470         size_t filenameLen = strlen(filename);
 471         qboolean isdefaultcfg =
 472                 !strcmp(filename, "default.cfg") ||
 473                 (filenameLen >= 12 && !strcmp(filename + filenameLen - 12, "/default.cfg"));
 474
 475         if (!strcmp(filename, "config.cfg"))
 476         {
 477                 filename = CONFIGFILENAME;
 478                 if (COM_CheckParm("-noconfig"))
 479                         return; // don't execute config.cfg
 480         }
 481
 482         f = (char *)FS_LoadFile (filename, tempmempool, false, NULL);
 483         if (!f)
 484         {
 485                 Con_Printf("couldn't exec %s\n",filename);
 486                 return;
 487         }
 488         Con_Printf("execing %s\n",filename);
 489
 490         // if executing default.cfg for the first time, lock the cvar defaults
 491         // it may seem backwards to insert this text BEFORE the default.cfg
 492         // but Cbuf_InsertText inserts before, so this actually ends up after it.
 493         if (isdefaultcfg)
 494                 Cbuf_InsertText(cmd, "\ncvar_lockdefaults\n");
 495
 496         // insert newline after the text to make sure the last line is terminated (some text editors omit the trailing newline)
 497         // (note: insertion order here is backwards from execution order, so this adds it after the text, by calling it before...)
 498         Cbuf_InsertText (cmd, "\n");
 499         Cbuf_InsertText (cmd, f);
 500         Mem_Free(f);
 501
 502         if (isdefaultcfg)
 503         {
 504                 // special defaults for specific games go here, these execute before default.cfg
 505                 // Nehahra pushable crates malfunction in some levels if this is on
 506                 // Nehahra NPC AI is confused by blowupfallenzombies
 507                 switch(gamemode)
 508                 {
 509                 case GAME_NORMAL:
 510                         Cbuf_InsertText(cmd, "\n"
 511 "sv_gameplayfix_blowupfallenzombies 0\n"
 512 "sv_gameplayfix_findradiusdistancetobox 0\n"
 513 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 514 "sv_gameplayfix_slidemoveprojectiles 0\n"
 515 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 516 "sv_gameplayfix_setmodelrealbox 0\n"
 517 "sv_gameplayfix_droptofloorstartsolid 0\n"
 518 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 519 "sv_gameplayfix_noairborncorpse 0\n"
 520 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 521 "sv_gameplayfix_easierwaterjump 0\n"
 522 "sv_gameplayfix_delayprojectiles 0\n"
 523 "sv_gameplayfix_multiplethinksperframe 0\n"
 524 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 525 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 526 "sv_gameplayfix_swiminbmodels 0\n"
 527 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 528 "sys_ticrate 0.01388889\n"
 529 "r_shadow_gloss 1\n"
 530 "r_shadow_bumpscale_basetexture 0\n"
 531 "csqc_polygons_defaultmaterial_nocullface 0\n"
 532                                 );
 533                         break;
 534                 case GAME_NEHAHRA:
 535                         Cbuf_InsertText(cmd, "\n"
 536 "sv_gameplayfix_blowupfallenzombies 0\n"
 537 "sv_gameplayfix_findradiusdistancetobox 0\n"
 538 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 539 "sv_gameplayfix_slidemoveprojectiles 0\n"
 540 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 541 "sv_gameplayfix_setmodelrealbox 0\n"
 542 "sv_gameplayfix_droptofloorstartsolid 0\n"
 543 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 544 "sv_gameplayfix_noairborncorpse 0\n"
 545 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 546 "sv_gameplayfix_easierwaterjump 0\n"
 547 "sv_gameplayfix_delayprojectiles 0\n"
 548 "sv_gameplayfix_multiplethinksperframe 0\n"
 549 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 550 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 551 "sv_gameplayfix_swiminbmodels 0\n"
 552 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 553 "sys_ticrate 0.01388889\n"
 554 "r_shadow_gloss 1\n"
 555 "r_shadow_bumpscale_basetexture 0\n"
 556 "csqc_polygons_defaultmaterial_nocullface 0\n"
 557                                 );
 558                         break;
 559                 // hipnotic mission pack has issues in their 'friendly monster' ai, which seem to attempt to attack themselves for some reason when findradius() returns non-solid entities.
 560                 // hipnotic mission pack has issues with bobbing water entities 'jittering' between different heights on alternate frames at the default 0.0138889 ticrate, 0.02 avoids this issue
 561                 // hipnotic mission pack has issues in their proximity mine sticking code, which causes them to bounce off.
 562                 case GAME_HIPNOTIC:
 563                 case GAME_QUOTH:
 564                         Cbuf_InsertText(cmd, "\n"
 565 "sv_gameplayfix_blowupfallenzombies 0\n"
 566 "sv_gameplayfix_findradiusdistancetobox 0\n"
 567 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 568 "sv_gameplayfix_slidemoveprojectiles 0\n"
 569 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 570 "sv_gameplayfix_setmodelrealbox 0\n"
 571 "sv_gameplayfix_droptofloorstartsolid 0\n"
 572 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 573 "sv_gameplayfix_noairborncorpse 0\n"
 574 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 575 "sv_gameplayfix_easierwaterjump 0\n"
 576 "sv_gameplayfix_delayprojectiles 0\n"
 577 "sv_gameplayfix_multiplethinksperframe 0\n"
 578 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 579 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 580 "sv_gameplayfix_swiminbmodels 0\n"
 581 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 582 "sys_ticrate 0.02\n"
 583 "r_shadow_gloss 1\n"
 584 "r_shadow_bumpscale_basetexture 0\n"
 585 "csqc_polygons_defaultmaterial_nocullface 0\n"
 586                                 );
 587                         break;
 588                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
 589                 case GAME_ROGUE:
 590                         Cbuf_InsertText(cmd, "\n"
 591 "sv_gameplayfix_blowupfallenzombies 0\n"
 592 "sv_gameplayfix_findradiusdistancetobox 0\n"
 593 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 594 "sv_gameplayfix_slidemoveprojectiles 0\n"
 595 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 596 "sv_gameplayfix_setmodelrealbox 0\n"
 597 "sv_gameplayfix_droptofloorstartsolid 0\n"
 598 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 599 "sv_gameplayfix_noairborncorpse 0\n"
 600 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 601 "sv_gameplayfix_easierwaterjump 0\n"
 602 "sv_gameplayfix_delayprojectiles 0\n"
 603 "sv_gameplayfix_multiplethinksperframe 0\n"
 604 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 605 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 606 "sv_gameplayfix_swiminbmodels 0\n"
 607 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 608 "sys_ticrate 0.01388889\n"
 609 "r_shadow_gloss 1\n"
 610 "r_shadow_bumpscale_basetexture 0\n"
 611 "csqc_polygons_defaultmaterial_nocullface 0\n"
 612                                 );
 613                         break;
 614                 case GAME_TENEBRAE:
 615                         Cbuf_InsertText(cmd, "\n"
 616 "sv_gameplayfix_blowupfallenzombies 0\n"
 617 "sv_gameplayfix_findradiusdistancetobox 0\n"
 618 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 619 "sv_gameplayfix_slidemoveprojectiles 0\n"
 620 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 621 "sv_gameplayfix_setmodelrealbox 0\n"
 622 "sv_gameplayfix_droptofloorstartsolid 0\n"
 623 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 624 "sv_gameplayfix_noairborncorpse 0\n"
 625 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 626 "sv_gameplayfix_easierwaterjump 0\n"
 627 "sv_gameplayfix_delayprojectiles 0\n"
 628 "sv_gameplayfix_multiplethinksperframe 0\n"
 629 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 630 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 631 "sv_gameplayfix_swiminbmodels 0\n"
 632 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 633 "sys_ticrate 0.01388889\n"
 634 "r_shadow_gloss 2\n"
 635 "r_shadow_bumpscale_basetexture 4\n"
 636 "csqc_polygons_defaultmaterial_nocullface 0\n"
 637                                 );
 638                         break;
 639                 case GAME_NEXUIZ:
 640                         Cbuf_InsertText(cmd, "\n"
 641 "sv_gameplayfix_blowupfallenzombies 1\n"
 642 "sv_gameplayfix_findradiusdistancetobox 1\n"
 643 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 644 "sv_gameplayfix_slidemoveprojectiles 1\n"
 645 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 646 "sv_gameplayfix_setmodelrealbox 1\n"
 647 "sv_gameplayfix_droptofloorstartsolid 1\n"
 648 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 649 "sv_gameplayfix_noairborncorpse 1\n"
 650 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 651 "sv_gameplayfix_easierwaterjump 1\n"
 652 "sv_gameplayfix_delayprojectiles 1\n"
 653 "sv_gameplayfix_multiplethinksperframe 1\n"
 654 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 655 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 656 "sv_gameplayfix_swiminbmodels 1\n"
 657 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 658 "sys_ticrate 0.01388889\n"
 659 "sv_gameplayfix_q2airaccelerate 1\n"
 660 "sv_gameplayfix_stepmultipletimes 1\n"
 661 "csqc_polygons_defaultmaterial_nocullface 1\n"
 662 "con_chatsound_team_mask 13\n"
 663                                 );
 664                         break;
 665                 case GAME_XONOTIC:
 666                 case GAME_VORETOURNAMENT:
 667                         // compatibility for versions prior to 2020-05-25, this can be overridden in newer versions to get the default behavior and be consistent with FTEQW engine
 668                         Cbuf_InsertText(cmd, "\n"
 669 "csqc_polygons_defaultmaterial_nocullface 1\n"
 670 "con_chatsound_team_mask 13\n"
 671 "sv_gameplayfix_customstats 1\n"
 672                                 );
 673                         break;
 674                 // Steel Storm: Burning Retribution csqc misinterprets CSQC_InputEvent if type is a value other than 0 or 1
 675                 case GAME_STEELSTORM:
 676                         Cbuf_InsertText(cmd, "\n"
 677 "sv_gameplayfix_blowupfallenzombies 1\n"
 678 "sv_gameplayfix_findradiusdistancetobox 1\n"
 679 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 680 "sv_gameplayfix_slidemoveprojectiles 1\n"
 681 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 682 "sv_gameplayfix_setmodelrealbox 1\n"
 683 "sv_gameplayfix_droptofloorstartsolid 1\n"
 684 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 685 "sv_gameplayfix_noairborncorpse 1\n"
 686 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 687 "sv_gameplayfix_easierwaterjump 1\n"
 688 "sv_gameplayfix_delayprojectiles 1\n"
 689 "sv_gameplayfix_multiplethinksperframe 1\n"
 690 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 691 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 692 "sv_gameplayfix_swiminbmodels 1\n"
 693 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 694 "sys_ticrate 0.01388889\n"
 695 "cl_csqc_generatemousemoveevents 0\n"
 696 "csqc_polygons_defaultmaterial_nocullface 1\n"
 697                                 );
 698                         break;
 699                 default:
 700                         Cbuf_InsertText(cmd, "\n"
 701 "sv_gameplayfix_blowupfallenzombies 1\n"
 702 "sv_gameplayfix_findradiusdistancetobox 1\n"
 703 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 704 "sv_gameplayfix_slidemoveprojectiles 1\n"
 705 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 706 "sv_gameplayfix_setmodelrealbox 1\n"
 707 "sv_gameplayfix_droptofloorstartsolid 1\n"
 708 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 709 "sv_gameplayfix_noairborncorpse 1\n"
 710 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 711 "sv_gameplayfix_easierwaterjump 1\n"
 712 "sv_gameplayfix_delayprojectiles 1\n"
 713 "sv_gameplayfix_multiplethinksperframe 1\n"
 714 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 715 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 716 "sv_gameplayfix_swiminbmodels 1\n"
 717 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 718 "sys_ticrate 0.01388889\n"
 719 "csqc_polygons_defaultmaterial_nocullface 0\n"
 720                                 );
 721                         break;
 722                 }
 723         }
 724 }
 725
 726 /*
 727 ===============
 728 Cmd_Exec_f
 729 ===============
 730 */
 731 static void Cmd_Exec_f (cmd_state_t *cmd)
 732 {
 733         fssearch_t *s;
 734         int i;
 735
 736         if (Cmd_Argc(cmd) != 2)
 737         {
 738                 Con_Print("exec <filename> : execute a script file\n");
 739                 return;
 740         }
 741
 742         s = FS_Search(Cmd_Argv(cmd, 1), true, true);
 743         if(!s || !s->numfilenames)
 744         {
 745                 Con_Printf("couldn't exec %s\n",Cmd_Argv(cmd, 1));
 746                 return;
 747         }
 748
 749         for(i = 0; i < s->numfilenames; ++i)
 750                 Cmd_Exec(cmd, s->filenames[i]);
 751
 752         FS_FreeSearch(s);
 753 }
 754
 755
 756 /*
 757 ===============
 758 Cmd_Echo_f
 759
 760 Just prints the rest of the line to the console
 761 ===============
 762 */
 763 static void Cmd_Echo_f (cmd_state_t *cmd)
 764 {
 765         int             i;
 766
 767         for (i=1 ; i<Cmd_Argc(cmd) ; i++)
 768                 Con_Printf("%s ",Cmd_Argv(cmd, i));
 769         Con_Print("\n");
 770 }
 771
 772 // DRESK - 5/14/06
 773 // Support Doom3-style Toggle Console Command
 774 /*
 775 ===============
 776 Cmd_Toggle_f
 777
 778 Toggles a specified console variable amongst the values specified (default is 0 and 1)
 779 ===============
 780 */
 781 static void Cmd_Toggle_f(cmd_state_t *cmd)
 782 {
 783         // Acquire Number of Arguments
 784         int nNumArgs = Cmd_Argc(cmd);
 785
 786         if(nNumArgs == 1)
 787                 // No Arguments Specified; Print Usage
 788                 Con_Print("Toggle Console Variable - Usage\n  toggle <variable> - toggles between 0 and 1\n  toggle <variable> <value> - toggles between 0 and <value>\n  toggle <variable> [string 1] [string 2]...[string n] - cycles through all strings\n");
 789         else
 790         { // Correct Arguments Specified
 791                 // Acquire Potential CVar
 792                 cvar_t* cvCVar = Cvar_FindVar(cmd->cvars, Cmd_Argv(cmd, 1), cmd->cvars_flagsmask);
 793
 794                 if(cvCVar != NULL)
 795                 { // Valid CVar
 796                         if(nNumArgs == 2)
 797                         { // Default Usage
 798                                 if(cvCVar->integer)
 799                                         Cvar_SetValueQuick(cvCVar, 0);
 800                                 else
 801                                         Cvar_SetValueQuick(cvCVar, 1);
 802                         }
 803                         else
 804                         if(nNumArgs == 3)
 805                         { // 0 and Specified Usage
 806                                 if(cvCVar->integer == atoi(Cmd_Argv(cmd, 2) ) )
 807                                         // CVar is Specified Value; // Reset to 0
 808                                         Cvar_SetValueQuick(cvCVar, 0);
 809                                 else
 810                                 if(cvCVar->integer == 0)
 811                                         // CVar is 0; Specify Value
 812                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 813                                 else
 814                                         // CVar does not match; Reset to 0
 815                                         Cvar_SetValueQuick(cvCVar, 0);
 816                         }
 817                         else
 818                         { // Variable Values Specified
 819                                 int nCnt;
 820                                 int bFound = 0;
 821
 822                                 for(nCnt = 2; nCnt < nNumArgs; nCnt++)
 823                                 { // Cycle through Values
 824                                         if( strcmp(cvCVar->string, Cmd_Argv(cmd, nCnt) ) == 0)
 825                                         { // Current Value Located; Increment to Next
 826                                                 if( (nCnt + 1) == nNumArgs)
 827                                                         // Max Value Reached; Reset
 828                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 829                                                 else
 830                                                         // Next Value
 831                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, nCnt + 1) );
 832
 833                                                 // End Loop
 834                                                 nCnt = nNumArgs;
 835                                                 // Assign Found
 836                                                 bFound = 1;
 837                                         }
 838                                 }
 839                                 if(!bFound)
 840                                         // Value not Found; Reset to Original
 841                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 842                         }
 843
 844                 }
 845                 else
 846                 { // Invalid CVar
 847                         Con_Printf("ERROR : CVar '%s' not found\n", Cmd_Argv(cmd, 1) );
 848                 }
 849         }
 850 }
 851
 852 /*
 853 ===============
 854 Cmd_Alias_f
 855
 856 Creates a new command that executes a command string (possibly ; seperated)
 857 ===============
 858 */
 859 static void Cmd_Alias_f (cmd_state_t *cmd)
 860 {
 861         cmdalias_t      *a;
 862         char            line[MAX_INPUTLINE];
 863         int                     i, c;
 864         const char              *s;
 865         size_t          alloclen;
 866
 867         if (Cmd_Argc(cmd) == 1)
 868         {
 869                 Con_Print("Current alias commands:\n");
 870                 for (a = cmd->userdefined->alias ; a ; a=a->next)
 871                         Con_Printf("%s : %s", a->name, a->value);
 872                 return;
 873         }
 874
 875         s = Cmd_Argv(cmd, 1);
 876         if (strlen(s) >= MAX_ALIAS_NAME)
 877         {
 878                 Con_Print("Alias name is too long\n");
 879                 return;
 880         }
 881
 882         // if the alias already exists, reuse it
 883         for (a = cmd->userdefined->alias ; a ; a=a->next)
 884         {
 885                 if (!strcmp(s, a->name))
 886                 {
 887                         Z_Free (a->value);
 888                         break;
 889                 }
 890         }
 891
 892         if (!a)
 893         {
 894                 cmdalias_t *prev, *current;
 895
 896                 a = (cmdalias_t *)Z_Malloc (sizeof(cmdalias_t));
 897                 strlcpy (a->name, s, sizeof (a->name));
 898                 // insert it at the right alphanumeric position
 899                 for( prev = NULL, current = cmd->userdefined->alias ; current && strcmp( current->name, a->name ) < 0 ; prev = current, current = current->next )
 900                         ;
 901                 if( prev ) {
 902                         prev->next = a;
 903                 } else {
 904                         cmd->userdefined->alias = a;
 905                 }
 906                 a->next = current;
 907         }
 908
 909
 910 // copy the rest of the command line
 911         line[0] = 0;            // start out with a null string
 912         c = Cmd_Argc(cmd);
 913         for (i=2 ; i < c ; i++)
 914         {
 915                 if (i != 2)
 916                         strlcat (line, " ", sizeof (line));
 917                 strlcat (line, Cmd_Argv(cmd, i), sizeof (line));
 918         }
 919         strlcat (line, "\n", sizeof (line));
 920
 921         alloclen = strlen (line) + 1;
 922         if(alloclen >= 2)
 923                 line[alloclen - 2] = '\n'; // to make sure a newline is appended even if too long
 924         a->value = (char *)Z_Malloc (alloclen);
 925         memcpy (a->value, line, alloclen);
 926 }
 927
 928 /*
 929 ===============
 930 Cmd_UnAlias_f
 931
 932 Remove existing aliases.
 933 ===============
 934 */
 935 static void Cmd_UnAlias_f (cmd_state_t *cmd)
 936 {
 937         cmdalias_t      *a, *p;
 938         int i;
 939         const char *s;
 940
 941         if(Cmd_Argc(cmd) == 1)
 942         {
 943                 Con_Print("unalias: Usage: unalias alias1 [alias2 ...]\n");
 944                 return;
 945         }
 946
 947         for(i = 1; i < Cmd_Argc(cmd); ++i)
 948         {
 949                 s = Cmd_Argv(cmd, i);
 950                 p = NULL;
 951                 for(a = cmd->userdefined->alias; a; p = a, a = a->next)
 952                 {
 953                         if(!strcmp(s, a->name))
 954                         {
 955                                 if (a->initstate) // we can not remove init aliases
 956                                         continue;
 957                                 if(a == cmd->userdefined->alias)
 958                                         cmd->userdefined->alias = a->next;
 959                                 if(p)
 960                                         p->next = a->next;
 961                                 Z_Free(a->value);
 962                                 Z_Free(a);
 963                                 break;
 964                         }
 965                 }
 966                 if(!a)
 967                         Con_Printf("unalias: %s alias not found\n", s);
 968         }
 969 }
 970
 971 /*
 972 =============================================================================
 973
 974                                         COMMAND EXECUTION
 975
 976 =============================================================================
 977 */
 978
 979 static const char *Cmd_GetDirectCvarValue(cmd_state_t *cmd, const char *varname, cmdalias_t *alias, qboolean *is_multiple)
 980 {
 981         cvar_t *cvar;
 982         long argno;
 983         char *endptr;
 984         static char vabuf[1024]; // cmd_mutex
 985
 986         if(is_multiple)
 987                 *is_multiple = false;
 988
 989         if(!varname || !*varname)
 990                 return NULL;
 991
 992         if(alias)
 993         {
 994                 if(!strcmp(varname, "*"))
 995                 {
 996                         if(is_multiple)
 997                                 *is_multiple = true;
 998                         return Cmd_Args(cmd);
 999                 }
1000                 else if(!strcmp(varname, "#"))
1001                 {
1002                         return va(vabuf, sizeof(vabuf), "%d", Cmd_Argc(cmd));
1003                 }
1004                 else if(varname[strlen(varname) - 1] == '-')
1005                 {
1006                         argno = strtol(varname, &endptr, 10);
1007                         if(endptr == varname + strlen(varname) - 1)
1008                         {
1009                                 // whole string is a number, apart from the -
1010                                 const char *p = Cmd_Args(cmd);
1011                                 for(; argno > 1; --argno)
1012                                         if(!COM_ParseToken_Console(&p))
1013                                                 break;
1014                                 if(p)
1015                                 {
1016                                         if(is_multiple)
1017                                                 *is_multiple = true;
1018
1019                                         // kill pre-argument whitespace
1020                                         for (;*p && ISWHITESPACE(*p);p++)
1021                                                 ;
1022
1023                                         return p;
1024                                 }
1025                         }
1026                 }
1027                 else
1028                 {
1029                         argno = strtol(varname, &endptr, 10);
1030                         if(*endptr == 0)
1031                         {
1032                                 // whole string is a number
1033                                 // NOTE: we already made sure we don't have an empty cvar name!
1034                                 if(argno >= 0 && argno < Cmd_Argc(cmd))
1035                                         return Cmd_Argv(cmd, argno);
1036                         }
1037                 }
1038         }
1039
1040         if((cvar = Cvar_FindVar(cmd->cvars, varname, cmd->cvars_flagsmask)) && !(cvar->flags & CVAR_PRIVATE))
1041                 return cvar->string;
1042
1043         return NULL;
1044 }
1045
1046 qboolean Cmd_QuoteString(char *out, size_t outlen, const char *in, const char *quoteset, qboolean putquotes)
1047 {
1048         qboolean quote_quot = !!strchr(quoteset, '"');
1049         qboolean quote_backslash = !!strchr(quoteset, '\\');
1050         qboolean quote_dollar = !!strchr(quoteset, '$');
1051
1052         if(putquotes)
1053         {
1054                 if(outlen <= 2)
1055                 {
1056                         *out++ = 0;
1057                         return false;
1058                 }
1059                 *out++ = '"'; --outlen;
1060                 --outlen;
1061         }
1062
1063         while(*in)
1064         {
1065                 if(*in == '"' && quote_quot)
1066                 {
1067                         if(outlen <= 2)
1068                                 goto fail;
1069                         *out++ = '\\'; --outlen;
1070                         *out++ = '"'; --outlen;
1071                 }
1072                 else if(*in == '\\' && quote_backslash)
1073                 {
1074                         if(outlen <= 2)
1075                                 goto fail;
1076                         *out++ = '\\'; --outlen;
1077                         *out++ = '\\'; --outlen;
1078                 }
1079                 else if(*in == '$' && quote_dollar)
1080                 {
1081                         if(outlen <= 2)
1082                                 goto fail;
1083                         *out++ = '$'; --outlen;
1084                         *out++ = '$'; --outlen;
1085                 }
1086                 else
1087                 {
1088                         if(outlen <= 1)
1089                                 goto fail;
1090                         *out++ = *in; --outlen;
1091                 }
1092                 ++in;
1093         }
1094         if(putquotes)
1095                 *out++ = '"';
1096         *out++ = 0;
1097         return true;
1098 fail:
1099         if(putquotes)
1100                 *out++ = '"';
1101         *out++ = 0;
1102         return false;
1103 }
1104
1105 static const char *Cmd_GetCvarValue(cmd_state_t *cmd, const char *var, size_t varlen, cmdalias_t *alias)
1106 {
1107         static char varname[MAX_INPUTLINE]; // cmd_mutex
1108         static char varval[MAX_INPUTLINE]; // cmd_mutex
1109         const char *varstr = NULL;
1110         char *varfunc;
1111         qboolean required = false;
1112         qboolean optional = false;
1113         static char asis[] = "asis"; // just to suppress const char warnings
1114
1115         if(varlen >= MAX_INPUTLINE)
1116                 varlen = MAX_INPUTLINE - 1;
1117         memcpy(varname, var, varlen);
1118         varname[varlen] = 0;
1119         varfunc = strchr(varname, ' ');
1120
1121         if(varfunc)
1122         {
1123                 *varfunc = 0;
1124                 ++varfunc;
1125         }
1126
1127         if(*var == 0)
1128         {
1129                 // empty cvar name?
1130                 if(alias)
1131                         Con_Warnf("Warning: Could not expand $ in alias %s\n", alias->name);
1132                 else
1133                         Con_Warnf("Warning: Could not expand $\n");
1134                 return "$";
1135         }
1136
1137         if(varfunc)
1138         {
1139                 char *p;
1140                 // ? means optional
1141                 while((p = strchr(varfunc, '?')))
1142                 {
1143                         optional = true;
1144                         memmove(p, p+1, strlen(p)); // with final NUL
1145                 }
1146                 // ! means required
1147                 while((p = strchr(varfunc, '!')))
1148                 {
1149                         required = true;
1150                         memmove(p, p+1, strlen(p)); // with final NUL
1151                 }
1152                 // kill spaces
1153                 while((p = strchr(varfunc, ' ')))
1154                 {
1155                         memmove(p, p+1, strlen(p)); // with final NUL
1156                 }
1157                 // if no function is left, NULL it
1158                 if(!*varfunc)
1159                         varfunc = NULL;
1160         }
1161
1162         if(varname[0] == '$')
1163                 varstr = Cmd_GetDirectCvarValue(cmd, Cmd_GetDirectCvarValue(cmd, varname + 1, alias, NULL), alias, NULL);
1164         else
1165         {
1166                 qboolean is_multiple = false;
1167                 // Exception: $* and $n- don't use the quoted form by default
1168                 varstr = Cmd_GetDirectCvarValue(cmd, varname, alias, &is_multiple);
1169                 if(is_multiple)
1170                         if(!varfunc)
1171                                 varfunc = asis;
1172         }
1173
1174         if(!varstr)
1175         {
1176                 if(required)
1177                 {
1178                         if(alias)
1179                                 Con_Errorf("Error: Could not expand $%s in alias %s\n", varname, alias->name);
1180                         else
1181                                 Con_Errorf("Error: Could not expand $%s\n", varname);
1182                         return NULL;
1183                 }
1184                 else if(optional)
1185                 {
1186                         return "";
1187                 }
1188                 else
1189                 {
1190                         if(alias)
1191                                 Con_Warnf("Warning: Could not expand $%s in alias %s\n", varname, alias->name);
1192                         else
1193                                 Con_Warnf("Warning: Could not expand $%s\n", varname);
1194                         dpsnprintf(varval, sizeof(varval), "$%s", varname);
1195                         return varval;
1196                 }
1197         }
1198
1199         if(!varfunc || !strcmp(varfunc, "q")) // note: quoted form is default, use "asis" to override!
1200         {
1201                 // quote it so it can be used inside double quotes
1202                 // we just need to replace " by \", and of course, double backslashes
1203                 Cmd_QuoteString(varval, sizeof(varval), varstr, "\"\\", false);
1204                 return varval;
1205         }
1206         else if(!strcmp(varfunc, "asis"))
1207         {
1208                 return varstr;
1209         }
1210         else
1211                 Con_Printf("Unknown variable function %s\n", varfunc);
1212
1213         return varstr;
1214 }
1215
1216 /*
1217 Cmd_PreprocessString
1218
1219 Preprocesses strings and replaces $*, $param#, $cvar accordingly. Also strips comments.
1220 */
1221 static qboolean Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias ) {
1222         const char *in;
1223         size_t eat, varlen;
1224         unsigned outlen;
1225         const char *val;
1226
1227         // don't crash if there's no room in the outtext buffer
1228         if( maxoutlen == 0 ) {
1229                 return false;
1230         }
1231         maxoutlen--; // because of \0
1232
1233         in = intext;
1234         outlen = 0;
1235
1236         while( *in && outlen < maxoutlen ) {
1237                 if( *in == '$' ) {
1238                         // this is some kind of expansion, see what comes after the $
1239                         in++;
1240
1241                         // The console does the following preprocessing:
1242                         //
1243                         // - $$ is transformed to a single dollar sign.
1244                         // - $var or ${var} are expanded to the contents of the named cvar,
1245                         //   with quotation marks and backslashes quoted so it can safely
1246                         //   be used inside quotation marks (and it should always be used
1247                         //   that way)
1248                         // - ${var asis} inserts the cvar value as is, without doing this
1249                         //   quoting
1250                         // - ${var ?} silently expands to the empty string if
1251                         //   $var does not exist
1252                         // - ${var !} fails expansion and executes nothing if
1253                         //   $var does not exist
1254                         // - prefix the cvar name with a dollar sign to do indirection;
1255                         //   for example, if $x has the value timelimit, ${$x} will return
1256                         //   the value of $timelimit
1257                         // - when expanding an alias, the special variable name $* refers
1258                         //   to all alias parameters, and a number refers to that numbered
1259                         //   alias parameter, where the name of the alias is $0, the first
1260                         //   parameter is $1 and so on; as a special case, $* inserts all
1261                         //   parameters, without extra quoting, so one can use $* to just
1262                         //   pass all parameters around. All parameters starting from $n
1263                         //   can be referred to as $n- (so $* is equivalent to $1-).
1264                         // - ${* q} and ${n- q} force quoting anyway
1265                         //
1266                         // Note: when expanding an alias, cvar expansion is done in the SAME step
1267                         // as alias expansion so that alias parameters or cvar values containing
1268                         // dollar signs have no unwanted bad side effects. However, this needs to
1269                         // be accounted for when writing complex aliases. For example,
1270                         //   alias foo "set x NEW; echo $x"
1271                         // actually expands to
1272                         //   "set x NEW; echo OLD"
1273                         // and will print OLD! To work around this, use a second alias:
1274                         //   alias foo "set x NEW; foo2"
1275                         //   alias foo2 "echo $x"
1276                         //
1277                         // Also note: lines starting with alias are exempt from cvar expansion.
1278                         // If you want cvar expansion, write "alias" instead:
1279                         //
1280                         //   set x 1
1281                         //   alias foo "echo $x"
1282                         //   "alias" bar "echo $x"
1283                         //   set x 2
1284                         //
1285                         // foo will print 2, because the variable $x will be expanded when the alias
1286                         // gets expanded. bar will print 1, because the variable $x was expanded
1287                         // at definition time. foo can be equivalently defined as
1288                         //
1289                         //   "alias" foo "echo $$x"
1290                         //
1291                         // because at definition time, $$ will get replaced to a single $.
1292
1293                         if( *in == '$' ) {
1294                                 val = "$";
1295                                 eat = 1;
1296                         } else if(*in == '{') {
1297                                 varlen = strcspn(in + 1, "}");
1298                                 if(in[varlen + 1] == '}')
1299                                 {
1300                                         val = Cmd_GetCvarValue(cmd, in + 1, varlen, alias);
1301                                         if(!val)
1302                                                 return false;
1303                                         eat = varlen + 2;
1304                                 }
1305                                 else
1306                                 {
1307                                         // ran out of data?
1308                                         val = NULL;
1309                                         eat = varlen + 1;
1310                                 }
1311                         } else {
1312                                 varlen = strspn(in, "#*0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-");
1313                                 val = Cmd_GetCvarValue(cmd, in, varlen, alias);
1314                                 if(!val)
1315                                         return false;
1316                                 eat = varlen;
1317                         }
1318                         if(val)
1319                         {
1320                                 // insert the cvar value
1321                                 while(*val && outlen < maxoutlen)
1322                                         outtext[outlen++] = *val++;
1323                                 in += eat;
1324                         }
1325                         else
1326                         {
1327                                 // copy the unexpanded text
1328                                 outtext[outlen++] = '$';
1329                                 while(eat && outlen < maxoutlen)
1330                                 {
1331                                         outtext[outlen++] = *in++;
1332                                         --eat;
1333                                 }
1334                         }
1335                 }
1336                 else
1337                         outtext[outlen++] = *in++;
1338         }
1339         outtext[outlen] = 0;
1340         return true;
1341 }
1342
1343 /*
1344 ============
1345 Cmd_ExecuteAlias
1346
1347 Called for aliases and fills in the alias into the cbuffer
1348 ============
1349 */
1350 static void Cmd_ExecuteAlias (cmd_state_t *cmd, cmdalias_t *alias)
1351 {
1352         static char buffer[ MAX_INPUTLINE ]; // cmd_mutex
1353         static char buffer2[ MAX_INPUTLINE ]; // cmd_mutex
1354         qboolean ret = Cmd_PreprocessString( cmd, alias->value, buffer, sizeof(buffer) - 2, alias );
1355         if(!ret)
1356                 return;
1357         // insert at start of command buffer, so that aliases execute in order
1358         // (fixes bug introduced by Black on 20050705)
1359
1360         // Note: Cbuf_PreprocessString will be called on this string AGAIN! So we
1361         // have to make sure that no second variable expansion takes place, otherwise
1362         // alias parameters containing dollar signs can have bad effects.
1363         Cmd_QuoteString(buffer2, sizeof(buffer2), buffer, "$", false);
1364         Cbuf_InsertText(cmd, buffer2);
1365 }
1366
1367 /*
1368 ========
1369 Cmd_List
1370
1371         CmdList Added by EvilTypeGuy eviltypeguy@qeradiant.com
1372         Thanks to Matthias "Maddes" Buecher, http://www.inside3d.com/qip/
1373
1374 ========
1375 */
1376 static void Cmd_List_f (cmd_state_t *cmd)
1377 {
1378         cmd_function_t *func;
1379         const char *partial;
1380         size_t len;
1381         int count;
1382         qboolean ispattern;
1383
1384         if (Cmd_Argc(cmd) > 1)
1385         {
1386                 partial = Cmd_Argv(cmd, 1);
1387                 len = strlen(partial);
1388                 ispattern = (strchr(partial, '*') || strchr(partial, '?'));
1389         }
1390         else
1391         {
1392                 partial = NULL;
1393                 len = 0;
1394                 ispattern = false;
1395         }
1396
1397         count = 0;
1398         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1399         {
1400                 if (partial && (ispattern ? !matchpattern_with_separator(func->name, partial, false, "", false) : strncmp(partial, func->name, len)))
1401                         continue;
1402                 Con_Printf("%s : %s\n", func->name, func->description);
1403                 count++;
1404         }
1405         for (func = cmd->engine_functions; func; func = func->next)
1406         {
1407                 if (partial && (ispattern ? !matchpattern_with_separator(func->name, partial, false, "", false) : strncmp(partial, func->name, len)))
1408                         continue;
1409                 Con_Printf("%s : %s\n", func->name, func->description);
1410                 count++;
1411         }
1412
1413         if (len)
1414         {
1415                 if(ispattern)
1416                         Con_Printf("%i Command%s matching \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1417                 else
1418                         Con_Printf("%i Command%s beginning with \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1419         }
1420         else
1421                 Con_Printf("%i Command%s\n\n", count, (count > 1) ? "s" : "");
1422 }
1423
1424 static void Cmd_Apropos_f(cmd_state_t *cmd)
1425 {
1426         cmd_function_t *func;
1427         cvar_t *cvar;
1428         cmdalias_t *alias;
1429         const char *partial;
1430         int count;
1431         qboolean ispattern;
1432         char vabuf[1024];
1433
1434         if (Cmd_Argc(cmd) > 1)
1435                 partial = Cmd_Args(cmd);
1436         else
1437         {
1438                 Con_Printf("usage: apropos <string>\n");
1439                 return;
1440         }
1441
1442         ispattern = partial && (strchr(partial, '*') || strchr(partial, '?'));
1443         if(!ispattern)
1444                 partial = va(vabuf, sizeof(vabuf), "*%s*", partial);
1445
1446         count = 0;
1447         for (cvar = cmd->cvars->vars; cvar; cvar = cvar->next)
1448         {
1449                 if (matchpattern_with_separator(cvar->name, partial, true, "", false) ||
1450                     matchpattern_with_separator(cvar->description, partial, true, "", false))
1451                 {
1452                         Con_Printf ("cvar ");
1453                         Cvar_PrintHelp(cvar, cvar->name, true);
1454                         count++;
1455                 }
1456                 for (int i = 0; i < cvar->aliasindex; i++)
1457                 {
1458                         if (matchpattern_with_separator(cvar->aliases[i], partial, true, "", false))
1459                         {
1460                                 Con_Printf ("cvar ");
1461                                 Cvar_PrintHelp(cvar, cvar->aliases[i], true);
1462                                 count++;
1463                         }
1464                 }
1465         }
1466         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1467         {
1468                 if (!matchpattern_with_separator(func->name, partial, true, "", false))
1469                         if (!matchpattern_with_separator(func->description, partial, true, "", false))
1470                                 continue;
1471                 Con_Printf("command ^2%s^7: %s\n", func->name, func->description);
1472                 count++;
1473         }
1474         for (func = cmd->engine_functions; func; func = func->next)
1475         {
1476                 if (!matchpattern_with_separator(func->name, partial, true, "", false))
1477                 if (!matchpattern_with_separator(func->description, partial, true, "", false))
1478                         continue;
1479                 Con_Printf("command ^2%s^7: %s\n", func->name, func->description);
1480                 count++;
1481         }
1482         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1483         {
1484                 // procede here a bit differently as an alias value always got a final \n
1485                 if (!matchpattern_with_separator(alias->name, partial, true, "", false))
1486                 if (!matchpattern_with_separator(alias->value, partial, true, "\n", false)) // when \n is as separator wildcards don't match it
1487                         continue;
1488                 Con_Printf("alias ^5%s^7: %s", alias->name, alias->value); // do not print an extra \n
1489                 count++;
1490         }
1491         Con_Printf("%i result%s\n\n", count, (count > 1) ? "s" : "");
1492 }
1493
1494 /*
1495 ============
1496 Cmd_Init
1497 ============
1498 */
1499 void Cmd_Init(void)
1500 {
1501         cmd_iter_t *cmd_iter;
1502         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
1503         {
1504                 cmd_state_t *cmd = cmd_iter->cmd;
1505                 cmd->mempool = Mem_AllocPool("commands", 0, NULL);
1506                 // space for commands and script files
1507                 cmd->text.data = cmd->text_buf;
1508                 cmd->text.maxsize = sizeof(cmd->text_buf);
1509                 cmd->text.cursize = 0;
1510                 cmd->null_string = "";
1511         }
1512         // client console can see server cvars because the user may start a server
1513         cmd_client.cvars = &cvars_all;
1514         cmd_client.cvars_flagsmask = CVAR_CLIENT | CVAR_SERVER;
1515         cmd_client.userdefined = &cmd_userdefined_all;
1516         // dedicated server console can only see server cvars, there is no client
1517         cmd_server.cvars = &cvars_all;
1518         cmd_server.cvars_flagsmask = CVAR_SERVER;
1519         cmd_server.userdefined = &cmd_userdefined_all;
1520         // server commands received from clients have no reason to access cvars, cvar expansion seems perilous.
1521         cmd_serverfromclient.cvars = &cvars_null;
1522         cmd_serverfromclient.cvars_flagsmask = 0;
1523         cmd_serverfromclient.userdefined = &cmd_userdefined_null;
1524 }
1525
1526 void Cmd_Init_Commands(qboolean dedicated_server)
1527 {
1528 //
1529 // register our commands
1530 //
1531         // client-only commands
1532         Cmd_AddCommand(CMD_CLIENT | CMD_CLIENT_FROM_SERVER, "cmd", Cmd_ForwardToServer_f, "send a console commandline to the server (used by some mods)");
1533         Cmd_AddCommand(CMD_SHARED, "wait", Cmd_Wait_f, "make script execution wait for next rendered frame");
1534         Cmd_AddCommand(CMD_CLIENT, "cprint", Cmd_Centerprint_f, "print something at the screen center");
1535
1536         // maintenance commands used for upkeep of cvars and saved configs
1537         Cmd_AddCommand(CMD_SHARED, "stuffcmds", Cmd_StuffCmds_f, "execute commandline parameters (must be present in quake.rc script)");
1538         Cmd_AddCommand(CMD_SHARED, "cvar_lockdefaults", Cvar_LockDefaults_f, "stores the current values of all cvars into their default values, only used once during startup after parsing default.cfg");
1539         Cmd_AddCommand(CMD_SHARED, "cvar_resettodefaults_all", Cvar_ResetToDefaults_All_f, "sets all cvars to their locked default values");
1540         Cmd_AddCommand(CMD_SHARED, "cvar_resettodefaults_nosaveonly", Cvar_ResetToDefaults_NoSaveOnly_f, "sets all non-saved cvars to their locked default values (variables that will not be saved to config.cfg)");
1541         Cmd_AddCommand(CMD_SHARED, "cvar_resettodefaults_saveonly", Cvar_ResetToDefaults_SaveOnly_f, "sets all saved cvars to their locked default values (variables that will be saved to config.cfg)");
1542
1543         // general console commands used in multiple environments
1544         Cmd_AddCommand(CMD_SHARED, "exec", Cmd_Exec_f, "execute a script file");
1545         Cmd_AddCommand(CMD_SHARED, "echo",Cmd_Echo_f, "print a message to the console (useful in scripts)");
1546         Cmd_AddCommand(CMD_SHARED, "alias",Cmd_Alias_f, "create a script function (parameters are passed in as $X (being X a number), $* for all parameters, $X- for all parameters starting from $X). Without arguments show the list of all alias");
1547         Cmd_AddCommand(CMD_SHARED, "unalias",Cmd_UnAlias_f, "remove an alias");
1548         Cmd_AddCommand(CMD_SHARED, "set", Cvar_Set_f, "create or change the value of a console variable");
1549         Cmd_AddCommand(CMD_SHARED, "seta", Cvar_SetA_f, "create or change the value of a console variable that will be saved to config.cfg");
1550         Cmd_AddCommand(CMD_SHARED, "unset", Cvar_Del_f, "delete a cvar (does not work for static ones like _cl_name, or read-only ones)");
1551
1552 #ifdef FILLALLCVARSWITHRUBBISH
1553         Cmd_AddCommand(CMD_SHARED, "fillallcvarswithrubbish", Cvar_FillAll_f, "fill all cvars with a specified number of characters to provoke buffer overruns");
1554 #endif /* FILLALLCVARSWITHRUBBISH */
1555
1556         // 2000-01-09 CmdList, CvarList commands By Matthias "Maddes" Buecher
1557         // Added/Modified by EvilTypeGuy eviltypeguy@qeradiant.com
1558         Cmd_AddCommand(CMD_SHARED, "cmdlist", Cmd_List_f, "lists all console commands beginning with the specified prefix or matching the specified wildcard pattern");
1559         Cmd_AddCommand(CMD_SHARED, "cvarlist", Cvar_List_f, "lists all console variables beginning with the specified prefix or matching the specified wildcard pattern");
1560         Cmd_AddCommand(CMD_SHARED, "apropos", Cmd_Apropos_f, "lists all console variables/commands/aliases containing the specified string in the name or description");
1561
1562         Cmd_AddCommand(CMD_SHARED, "defer", Cmd_Defer_f, "execute a command in the future");
1563
1564         // DRESK - 5/14/06
1565         // Support Doom3-style Toggle Command
1566         Cmd_AddCommand(CMD_SHARED | CMD_CLIENT_FROM_SERVER, "toggle", Cmd_Toggle_f, "toggles a console variable's values (use for more info)");
1567 }
1568
1569 /*
1570 ============
1571 Cmd_Shutdown
1572 ============
1573 */
1574 void Cmd_Shutdown(void)
1575 {
1576         cmd_iter_t *cmd_iter;
1577         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
1578         {
1579                 cmd_state_t *cmd = cmd_iter->cmd;
1580
1581                 if (cmd->text_lock)
1582                 {
1583                         // we usually have this locked when we get here from Host_Quit_f
1584                         Cbuf_Unlock(cmd);
1585                 }
1586
1587                 Mem_FreePool(&cmd->mempool);
1588         }
1589 }
1590
1591 /*
1592 ============
1593 Cmd_Argc
1594 ============
1595 */
1596 int             Cmd_Argc (cmd_state_t *cmd)
1597 {
1598         return cmd->argc;
1599 }
1600
1601 /*
1602 ============
1603 Cmd_Argv
1604 ============
1605 */
1606 const char *Cmd_Argv(cmd_state_t *cmd, int arg)
1607 {
1608         if (arg >= cmd->argc )
1609                 return cmd->null_string;
1610         return cmd->argv[arg];
1611 }
1612
1613 /*
1614 ============
1615 Cmd_Args
1616 ============
1617 */
1618 const char *Cmd_Args (cmd_state_t *cmd)
1619 {
1620         return cmd->args;
1621 }
1622
1623
1624 /*
1625 ============
1626 Cmd_TokenizeString
1627
1628 Parses the given string into command line tokens.
1629 ============
1630 */
1631 // AK: This function should only be called from ExcuteString because the current design is a bit of an hack
1632 static void Cmd_TokenizeString (cmd_state_t *cmd, const char *text)
1633 {
1634         int l;
1635
1636         cmd->argc = 0;
1637         cmd->args = NULL;
1638
1639         while (1)
1640         {
1641                 // skip whitespace up to a /n
1642                 while (*text && ISWHITESPACE(*text) && *text != '\r' && *text != '\n')
1643                         text++;
1644
1645                 // line endings:
1646                 // UNIX: \n
1647                 // Mac: \r
1648                 // Windows: \r\n
1649                 if (*text == '\n' || *text == '\r')
1650                 {
1651                         // a newline separates commands in the buffer
1652                         if (*text == '\r' && text[1] == '\n')
1653                                 text++;
1654                         text++;
1655                         break;
1656                 }
1657
1658                 if (!*text)
1659                         return;
1660
1661                 if (cmd->argc == 1)
1662                         cmd->args = text;
1663
1664                 if (!COM_ParseToken_Console(&text))
1665                         return;
1666
1667                 if (cmd->argc < MAX_ARGS)
1668                 {
1669                         l = (int)strlen(com_token) + 1;
1670                         if (cmd->tokenizebufferpos + l > CMD_TOKENIZELENGTH)
1671                         {
1672                                 Con_Printf("Cmd_TokenizeString: ran out of %i character buffer space for command arguments\n", CMD_TOKENIZELENGTH);
1673                                 break;
1674                         }
1675                         memcpy (cmd->tokenizebuffer + cmd->tokenizebufferpos, com_token, l);
1676                         cmd->argv[cmd->argc] = cmd->tokenizebuffer + cmd->tokenizebufferpos;
1677                         cmd->tokenizebufferpos += l;
1678                         cmd->argc++;
1679                 }
1680         }
1681 }
1682
1683
1684 /*
1685 ============
1686 Cmd_AddCommand
1687 ============
1688 */
1689 void Cmd_AddCommand(int flags, const char *cmd_name, xcommand_t function, const char *description)
1690 {
1691         cmd_function_t *func;
1692         cmd_function_t *prev, *current;
1693         cmd_state_t *cmd;
1694         xcommand_t function_actual;
1695         int i;
1696
1697         for (i = 1; i < (1<<8); i *= 2)
1698         {
1699                 function_actual = function;
1700                 if ((i == CMD_CLIENT) && (flags & i))
1701                 {
1702                         cmd = &cmd_client;
1703                         if (flags & 8)
1704                                 function_actual = Cmd_ForwardToServer_f;
1705                 }
1706                 else if ((i == CMD_SERVER) && (flags & i))
1707                         cmd = &cmd_server;
1708                 else if ((i == 8) && (flags & i)) // CMD_SERVER_FROM_CLIENT
1709                         cmd = &cmd_serverfromclient;
1710                 else
1711                         continue;
1712
1713         // fail if the command is a variable name
1714                 if (Cvar_FindVar(cmd->cvars, cmd_name, ~0))
1715                 {
1716                         Con_Printf("Cmd_AddCommand: %s already defined as a var\n", cmd_name);
1717                         return;
1718                 }
1719
1720                 if (function_actual)
1721                 {
1722                         // fail if the command already exists in this interpreter
1723                         for (func = cmd->engine_functions; func; func = func->next)
1724                         {
1725                                 if (!strcmp(cmd_name, func->name))
1726                                 {
1727                                         // Allow overriding forward to server
1728                                         if(func->function == Cmd_ForwardToServer_f && (func->flags & 8))
1729                                                 break;
1730                                         else
1731                                         {
1732                                                 Con_Printf("Cmd_AddCommand: %s already defined\n", cmd_name);
1733                                                 goto nested_continue;
1734                                         }
1735                                 }
1736                         }
1737
1738                         func = (cmd_function_t *)Mem_Alloc(cmd->mempool, sizeof(cmd_function_t));
1739                         func->flags = flags;
1740                         func->name = cmd_name;
1741                         func->function = function_actual;
1742                         func->description = description;
1743                         func->next = cmd->engine_functions;
1744
1745                         // insert it at the right alphanumeric position
1746                         for (prev = NULL, current = cmd->engine_functions; current && strcmp(current->name, func->name) < 0; prev = current, current = current->next)
1747                                 ;
1748                         if (prev) {
1749                                 prev->next = func;
1750                         }
1751                         else {
1752                                 cmd->engine_functions = func;
1753                         }
1754                         func->next = current;
1755                 }
1756                 else
1757                 {
1758                         // mark csqcfunc if the function already exists in the csqc_functions list
1759                         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1760                         {
1761                                 if (!strcmp(cmd_name, func->name))
1762                                 {
1763                                         func->csqcfunc = true; //[515]: csqc
1764                                         continue;
1765                                 }
1766                         }
1767
1768
1769                         func = (cmd_function_t *)Mem_Alloc(cmd->mempool, sizeof(cmd_function_t));
1770                         func->name = cmd_name;
1771                         func->function = function_actual;
1772                         func->description = description;
1773                         func->csqcfunc = true; //[515]: csqc
1774                         func->next = cmd->userdefined->csqc_functions;
1775
1776                         // insert it at the right alphanumeric position
1777                         for (prev = NULL, current = cmd->userdefined->csqc_functions; current && strcmp(current->name, func->name) < 0; prev = current, current = current->next)
1778                                 ;
1779                         if (prev) {
1780                                 prev->next = func;
1781                         }
1782                         else {
1783                                 cmd->userdefined->csqc_functions = func;
1784                         }
1785                         func->next = current;
1786                 }
1787 nested_continue:
1788                 continue;
1789         }
1790 }
1791
1792 /*
1793 ============
1794 Cmd_Exists
1795 ============
1796 */
1797 qboolean Cmd_Exists (cmd_state_t *cmd, const char *cmd_name)
1798 {
1799         cmd_function_t  *func;
1800
1801         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1802                 if (!strcmp(cmd_name, func->name))
1803                         return true;
1804
1805         for (func=cmd->engine_functions ; func ; func=func->next)
1806                 if (!strcmp (cmd_name,func->name))
1807                         return true;
1808
1809         return false;
1810 }
1811
1812
1813 /*
1814 ============
1815 Cmd_CompleteCommand
1816 ============
1817 */
1818 const char *Cmd_CompleteCommand (cmd_state_t *cmd, const char *partial)
1819 {
1820         cmd_function_t *func;
1821         size_t len;
1822
1823         len = strlen(partial);
1824
1825         if (!len)
1826                 return NULL;
1827
1828 // check functions
1829         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1830                 if (!strncasecmp(partial, func->name, len))
1831                         return func->name;
1832
1833         for (func = cmd->engine_functions; func; func = func->next)
1834                 if (!strncasecmp(partial, func->name, len))
1835                         return func->name;
1836
1837         return NULL;
1838 }
1839
1840 /*
1841         Cmd_CompleteCountPossible
1842
1843         New function for tab-completion system
1844         Added by EvilTypeGuy
1845         Thanks to Fett erich@heintz.com
1846         Thanks to taniwha
1847
1848 */
1849 int Cmd_CompleteCountPossible (cmd_state_t *cmd, const char *partial)
1850 {
1851         cmd_function_t *func;
1852         size_t len;
1853         int h;
1854
1855         h = 0;
1856         len = strlen(partial);
1857
1858         if (!len)
1859                 return 0;
1860
1861         // Loop through the command list and count all partial matches
1862         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1863                 if (!strncasecmp(partial, func->name, len))
1864                         h++;
1865
1866         for (func = cmd->engine_functions; func; func = func->next)
1867                 if (!strncasecmp(partial, func->name, len))
1868                         h++;
1869
1870         return h;
1871 }
1872
1873 /*
1874         Cmd_CompleteBuildList
1875
1876         New function for tab-completion system
1877         Added by EvilTypeGuy
1878         Thanks to Fett erich@heintz.com
1879         Thanks to taniwha
1880
1881 */
1882 const char **Cmd_CompleteBuildList (cmd_state_t *cmd, const char *partial)
1883 {
1884         cmd_function_t *func;
1885         size_t len = 0;
1886         size_t bpos = 0;
1887         size_t sizeofbuf = (Cmd_CompleteCountPossible (cmd, partial) + 1) * sizeof (const char *);
1888         const char **buf;
1889
1890         len = strlen(partial);
1891         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
1892         // Loop through the functions lists and print all matches
1893         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1894                 if (!strncasecmp(partial, func->name, len))
1895                         buf[bpos++] = func->name;
1896         for (func = cmd->engine_functions; func; func = func->next)
1897                 if (!strncasecmp(partial, func->name, len))
1898                         buf[bpos++] = func->name;
1899
1900         buf[bpos] = NULL;
1901         return buf;
1902 }
1903
1904 // written by LadyHavoc
1905 void Cmd_CompleteCommandPrint (cmd_state_t *cmd, const char *partial)
1906 {
1907         cmd_function_t *func;
1908         size_t len = strlen(partial);
1909         // Loop through the command list and print all matches
1910         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1911                 if (!strncasecmp(partial, func->name, len))
1912                         Con_Printf("^2%s^7: %s\n", func->name, func->description);
1913         for (func = cmd->engine_functions; func; func = func->next)
1914                 if (!strncasecmp(partial, func->name, len))
1915                         Con_Printf("^2%s^7: %s\n", func->name, func->description);
1916 }
1917
1918 /*
1919         Cmd_CompleteAlias
1920
1921         New function for tab-completion system
1922         Added by EvilTypeGuy
1923         Thanks to Fett erich@heintz.com
1924         Thanks to taniwha
1925
1926 */
1927 const char *Cmd_CompleteAlias (cmd_state_t *cmd, const char *partial)
1928 {
1929         cmdalias_t *alias;
1930         size_t len;
1931
1932         len = strlen(partial);
1933
1934         if (!len)
1935                 return NULL;
1936
1937         // Check functions
1938         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1939                 if (!strncasecmp(partial, alias->name, len))
1940                         return alias->name;
1941
1942         return NULL;
1943 }
1944
1945 // written by LadyHavoc
1946 void Cmd_CompleteAliasPrint (cmd_state_t *cmd, const char *partial)
1947 {
1948         cmdalias_t *alias;
1949         size_t len = strlen(partial);
1950         // Loop through the alias list and print all matches
1951         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1952                 if (!strncasecmp(partial, alias->name, len))
1953                         Con_Printf("^5%s^7: %s", alias->name, alias->value);
1954 }
1955
1956
1957 /*
1958         Cmd_CompleteAliasCountPossible
1959
1960         New function for tab-completion system
1961         Added by EvilTypeGuy
1962         Thanks to Fett erich@heintz.com
1963         Thanks to taniwha
1964
1965 */
1966 int Cmd_CompleteAliasCountPossible (cmd_state_t *cmd, const char *partial)
1967 {
1968         cmdalias_t      *alias;
1969         size_t          len;
1970         int                     h;
1971
1972         h = 0;
1973
1974         len = strlen(partial);
1975
1976         if (!len)
1977                 return 0;
1978
1979         // Loop through the command list and count all partial matches
1980         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1981                 if (!strncasecmp(partial, alias->name, len))
1982                         h++;
1983
1984         return h;
1985 }
1986
1987 /*
1988         Cmd_CompleteAliasBuildList
1989
1990         New function for tab-completion system
1991         Added by EvilTypeGuy
1992         Thanks to Fett erich@heintz.com
1993         Thanks to taniwha
1994
1995 */
1996 const char **Cmd_CompleteAliasBuildList (cmd_state_t *cmd, const char *partial)
1997 {
1998         cmdalias_t *alias;
1999         size_t len = 0;
2000         size_t bpos = 0;
2001         size_t sizeofbuf = (Cmd_CompleteAliasCountPossible (cmd, partial) + 1) * sizeof (const char *);
2002         const char **buf;
2003
2004         len = strlen(partial);
2005         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
2006         // Loop through the alias list and print all matches
2007         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
2008                 if (!strncasecmp(partial, alias->name, len))
2009                         buf[bpos++] = alias->name;
2010
2011         buf[bpos] = NULL;
2012         return buf;
2013 }
2014
2015 // TODO: Make this more generic?
2016 void Cmd_ClearCSQCCommands (cmd_state_t *cmd)
2017 {
2018         cmd_function_t *func;
2019         cmd_function_t **next = &cmd->userdefined->csqc_functions;
2020
2021         while(*next)
2022         {
2023                 func = *next;
2024                 *next = func->next;
2025                 Z_Free(func);
2026         }
2027 }
2028
2029 extern cvar_t sv_cheats;
2030
2031 /*
2032 ============
2033 Cmd_ExecuteString
2034
2035 A complete command line has been parsed, so try to execute it
2036 FIXME: lookupnoadd the token to speed search?
2037 ============
2038 */
2039 void Cmd_ExecuteString (cmd_state_t *cmd, const char *text, cmd_source_t src, qboolean lockmutex)
2040 {
2041         int oldpos;
2042         cmd_function_t *func;
2043         cmdalias_t *a;
2044         if (lockmutex)
2045                 Cbuf_Lock(cmd);
2046         oldpos = cmd->tokenizebufferpos;
2047         cmd->source = src;
2048
2049         Cmd_TokenizeString (cmd, text);
2050
2051 // execute the command line
2052         if (!Cmd_Argc(cmd))
2053                 goto done; // no tokens
2054
2055 // check functions
2056         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
2057         {
2058                 if (!strcasecmp(cmd->argv[0], func->name))
2059                 {
2060                         if (func->csqcfunc && CL_VM_ConsoleCommand(text))       //[515]: csqc
2061                                 goto done;
2062                         break;
2063                 }
2064         }
2065
2066         for (func = cmd->engine_functions; func; func=func->next)
2067         {
2068                 if (!strcasecmp (cmd->argv[0], func->name))
2069                 {
2070                         switch (src)
2071                         {
2072                         case src_command:
2073                                 if (func->function)
2074                                         func->function(cmd);
2075                                 else
2076                                         Con_Printf("Command \"%s\" can not be executed\n", Cmd_Argv(cmd, 0));
2077                                 goto done;
2078                         case src_client:
2079                                 if (func->function)
2080                                 {
2081                                         if((func->flags & CMD_CHEAT) && !sv_cheats.integer)
2082                                                 SV_ClientPrintf("No cheats allowed. The server must have sv_cheats set to 1\n");
2083                                         func->function(cmd);
2084                                         goto done;
2085                                 }
2086                         }
2087                         break;
2088                 }
2089         }
2090
2091         // if it's a client command and no command was found, say so.
2092         if (cmd->source == src_client)
2093         {
2094                 Con_Printf("Client \"%s\" tried to execute \"%s\"\n", host_client->name, text);
2095                 goto done;
2096         }
2097
2098 // check alias
2099         for (a=cmd->userdefined->alias ; a ; a=a->next)
2100         {
2101                 if (!strcasecmp (cmd->argv[0], a->name))
2102                 {
2103                         Cmd_ExecuteAlias(cmd, a);
2104                         goto done;
2105                 }
2106         }
2107
2108 // check cvars
2109         if (!Cvar_Command(cmd) && host_framecount > 0)
2110                 Con_Printf("Unknown command \"%s\"\n", Cmd_Argv(cmd, 0));
2111 done:
2112         cmd->tokenizebufferpos = oldpos;
2113         if (lockmutex)
2114                 Cbuf_Unlock(cmd);
2115 }
2116
2117
2118 /*
2119 ===================
2120 Cmd_ForwardStringToServer
2121
2122 Sends an entire command string over to the server, unprocessed
2123 ===================
2124 */
2125 void Cmd_ForwardStringToServer (const char *s)
2126 {
2127         char temp[128];
2128         if (cls.state != ca_connected)
2129         {
2130                 Con_Printf("Can't \"%s\", not connected\n", s);
2131                 return;
2132         }
2133
2134         if (!cls.netcon)
2135                 return;
2136
2137         // LadyHavoc: thanks to Fuh for bringing the pure evil of SZ_Print to my
2138         // attention, it has been eradicated from here, its only (former) use in
2139         // all of darkplaces.
2140         if (cls.protocol == PROTOCOL_QUAKEWORLD)
2141                 MSG_WriteByte(&cls.netcon->message, qw_clc_stringcmd);
2142         else
2143                 MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
2144         if ((!strncmp(s, "say ", 4) || !strncmp(s, "say_team ", 9)) && cl_locs_enable.integer)
2145         {
2146                 // say/say_team commands can replace % character codes with status info
2147                 while (*s)
2148                 {
2149                         if (*s == '%' && s[1])
2150                         {
2151                                 // handle proquake message macros
2152                                 temp[0] = 0;
2153                                 switch (s[1])
2154                                 {
2155                                 case 'l': // current location
2156                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.movement_origin);
2157                                         break;
2158                                 case 'h': // current health
2159                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_HEALTH]);
2160                                         break;
2161                                 case 'a': // current armor
2162                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ARMOR]);
2163                                         break;
2164                                 case 'x': // current rockets
2165                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ROCKETS]);
2166                                         break;
2167                                 case 'c': // current cells
2168                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_CELLS]);
2169                                         break;
2170                                 // silly proquake macros
2171                                 case 'd': // loc at last death
2172                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.lastdeathorigin);
2173                                         break;
2174                                 case 't': // current time
2175                                         dpsnprintf(temp, sizeof(temp), "%.0f:%.0f", floor(cl.time / 60), cl.time - floor(cl.time / 60) * 60);
2176                                         break;
2177                                 case 'r': // rocket launcher status ("I have RL", "I need rockets", "I need RL")
2178                                         if (!(cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER))
2179                                                 dpsnprintf(temp, sizeof(temp), "I need RL");
2180                                         else if (!cl.stats[STAT_ROCKETS])
2181                                                 dpsnprintf(temp, sizeof(temp), "I need rockets");
2182                                         else
2183                                                 dpsnprintf(temp, sizeof(temp), "I have RL");
2184                                         break;
2185                                 case 'p': // powerup status (outputs "quad" "pent" and "eyes" according to status)
2186                                         if (cl.stats[STAT_ITEMS] & IT_QUAD)
2187                                         {
2188                                                 if (temp[0])
2189                                                         strlcat(temp, " ", sizeof(temp));
2190                                                 strlcat(temp, "quad", sizeof(temp));
2191                                         }
2192                                         if (cl.stats[STAT_ITEMS] & IT_INVULNERABILITY)
2193                                         {
2194                                                 if (temp[0])
2195                                                         strlcat(temp, " ", sizeof(temp));
2196                                                 strlcat(temp, "pent", sizeof(temp));
2197                                         }
2198                                         if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
2199                                         {
2200                                                 if (temp[0])
2201                                                         strlcat(temp, " ", sizeof(temp));
2202                                                 strlcat(temp, "eyes", sizeof(temp));
2203                                         }
2204                                         break;
2205                                 case 'w': // weapon status (outputs "SSG:NG:SNG:GL:RL:LG" with the text between : characters omitted if you lack the weapon)
2206                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_SHOTGUN)
2207                                                 strlcat(temp, "SSG", sizeof(temp));
2208                                         strlcat(temp, ":", sizeof(temp));
2209                                         if (cl.stats[STAT_ITEMS] & IT_NAILGUN)
2210                                                 strlcat(temp, "NG", sizeof(temp));
2211                                         strlcat(temp, ":", sizeof(temp));
2212                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_NAILGUN)
2213                                                 strlcat(temp, "SNG", sizeof(temp));
2214                                         strlcat(temp, ":", sizeof(temp));
2215                                         if (cl.stats[STAT_ITEMS] & IT_GRENADE_LAUNCHER)
2216                                                 strlcat(temp, "GL", sizeof(temp));
2217                                         strlcat(temp, ":", sizeof(temp));
2218                                         if (cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER)
2219                                                 strlcat(temp, "RL", sizeof(temp));
2220                                         strlcat(temp, ":", sizeof(temp));
2221                                         if (cl.stats[STAT_ITEMS] & IT_LIGHTNING)
2222                                                 strlcat(temp, "LG", sizeof(temp));
2223                                         break;
2224                                 default:
2225                                         // not a recognized macro, print it as-is...
2226                                         temp[0] = s[0];
2227                                         temp[1] = s[1];
2228                                         temp[2] = 0;
2229                                         break;
2230                                 }
2231                                 // write the resulting text
2232                                 SZ_Write(&cls.netcon->message, (unsigned char *)temp, (int)strlen(temp));
2233                                 s += 2;
2234                                 continue;
2235                         }
2236                         MSG_WriteByte(&cls.netcon->message, *s);
2237                         s++;
2238                 }
2239                 MSG_WriteByte(&cls.netcon->message, 0);
2240         }
2241         else // any other command is passed on as-is
2242                 SZ_Write(&cls.netcon->message, (const unsigned char *)s, (int)strlen(s) + 1);
2243 }
2244
2245 /*
2246 ===================
2247 Cmd_ForwardToServer
2248
2249 Sends the entire command line over to the server
2250 ===================
2251 */
2252 void Cmd_ForwardToServer_f (cmd_state_t *cmd)
2253 {
2254         const char *s;
2255         char vabuf[1024];
2256         if (!strcasecmp(Cmd_Argv(cmd, 0), "cmd"))
2257         {
2258                 // we want to strip off "cmd", so just send the args
2259                 s = Cmd_Argc(cmd) > 1 ? Cmd_Args(cmd) : "";
2260         }
2261         else
2262         {
2263                 // we need to keep the command name, so send Cmd_Argv(cmd, 0), a space and then Cmd_Args(cmd)
2264                 s = va(vabuf, sizeof(vabuf), "%s %s", Cmd_Argv(cmd, 0), Cmd_Argc(cmd) > 1 ? Cmd_Args(cmd) : "");
2265         }
2266         // don't send an empty forward message if the user tries "cmd" by itself
2267         if (!s || !*s)
2268                 return;
2269         Cmd_ForwardStringToServer(s);
2270 }
2271
2272
2273 /*
2274 ================
2275 Cmd_CheckParm
2276
2277 Returns the position (1 to argc-1) in the command's argument list
2278 where the given parameter apears, or 0 if not present
2279 ================
2280 */
2281
2282 int Cmd_CheckParm (cmd_state_t *cmd, const char *parm)
2283 {
2284         int i;
2285
2286         if (!parm)
2287         {
2288                 Con_Printf ("Cmd_CheckParm: NULL");
2289                 return 0;
2290         }
2291
2292         for (i = 1; i < Cmd_Argc (cmd); i++)
2293                 if (!strcasecmp (parm, Cmd_Argv(cmd, i)))
2294                         return i;
2295
2296         return 0;
2297 }
2298
2299
2300
2301 void Cmd_SaveInitState(void)
2302 {
2303         cmd_iter_t *cmd_iter;
2304         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
2305         {
2306                 cmd_state_t *cmd = cmd_iter->cmd;
2307                 cmd_function_t *f;
2308                 cmdalias_t *a;
2309                 for (f = cmd->userdefined->csqc_functions; f; f = f->next)
2310                         f->initstate = true;
2311                 for (f = cmd->engine_functions; f; f = f->next)
2312                         f->initstate = true;
2313                 for (a = cmd->userdefined->alias; a; a = a->next)
2314                 {
2315                         a->initstate = true;
2316                         a->initialvalue = Mem_strdup(zonemempool, a->value);
2317                 }
2318         }
2319         Cvar_SaveInitState(&cvars_all);
2320 }
2321
2322 void Cmd_RestoreInitState(void)
2323 {
2324         cmd_iter_t *cmd_iter;
2325         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
2326         {
2327                 cmd_state_t *cmd = cmd_iter->cmd;
2328                 cmd_function_t *f, **fp;
2329                 cmdalias_t *a, **ap;
2330                 for (fp = &cmd->userdefined->csqc_functions; (f = *fp);)
2331                 {
2332                         if (f->initstate)
2333                                 fp = &f->next;
2334                         else
2335                         {
2336                                 // destroy this command, it didn't exist at init
2337                                 Con_DPrintf("Cmd_RestoreInitState: Destroying command %s\n", f->name);
2338                                 *fp = f->next;
2339                                 Z_Free(f);
2340                         }
2341                 }
2342                 for (fp = &cmd->engine_functions; (f = *fp);)
2343                 {
2344                         if (f->initstate)
2345                                 fp = &f->next;
2346                         else
2347                         {
2348                                 // destroy this command, it didn't exist at init
2349                                 Con_DPrintf("Cmd_RestoreInitState: Destroying command %s\n", f->name);
2350                                 *fp = f->next;
2351                                 Z_Free(f);
2352                         }
2353                 }
2354                 for (ap = &cmd->userdefined->alias; (a = *ap);)
2355                 {
2356                         if (a->initstate)
2357                         {
2358                                 // restore this alias, it existed at init
2359                                 if (strcmp(a->value ? a->value : "", a->initialvalue ? a->initialvalue : ""))
2360                                 {
2361                                         Con_DPrintf("Cmd_RestoreInitState: Restoring alias %s\n", a->name);
2362                                         if (a->value)
2363                                                 Z_Free(a->value);
2364                                         a->value = Mem_strdup(zonemempool, a->initialvalue);
2365                                 }
2366                                 ap = &a->next;
2367                         }
2368                         else
2369                         {
2370                                 // free this alias, it didn't exist at init...
2371                                 Con_DPrintf("Cmd_RestoreInitState: Destroying alias %s\n", a->name);
2372                                 *ap = a->next;
2373                                 if (a->value)
2374                                         Z_Free(a->value);
2375                                 Z_Free(a);
2376                         }
2377                 }
2378         }
2379         Cvar_RestoreInitState(&cvars_all);
2380 }