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_LockMutex(cmd->text_mutex);
  53 }
  54
  55 void Cbuf_Unlock(cmd_state_t *cmd)
  56 {
  57         Thread_UnlockMutex(cmd->text_mutex);
  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 (host.realtime - cmd->deferred_oldrealtime < 0 || host.realtime - cmd->deferred_oldrealtime > 1800) cmd->deferred_oldrealtime = host.realtime;
 241         eat = host.realtime - cmd->deferred_oldrealtime;
 242         if (eat < (1.0 / 120.0))
 243                 return;
 244         cmd->deferred_oldrealtime = host.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_Printf(CON_WARN "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 /*
 399 ===============
 400 Cmd_StuffCmds_f
 401
 402 Adds command line parameters as script statements
 403 Commands lead with a +, and continue until a - or another +
 404 quake +prog jctest.qp +cmd amlev1
 405 quake -nosound +cmd amlev1
 406 ===============
 407 */
 408 static void Cmd_StuffCmds_f (cmd_state_t *cmd)
 409 {
 410         int             i, j, l;
 411         // this is for all commandline options combined (and is bounds checked)
 412         char    build[MAX_INPUTLINE];
 413
 414         // come back later so we don't crash
 415         if(host.state == host_init)
 416                 return;
 417
 418         if (Cmd_Argc (cmd) != 1)
 419         {
 420                 Con_Print("stuffcmds : execute command line parameters\n");
 421                 return;
 422         }
 423
 424         // no reason to run the commandline arguments twice
 425         if (host_stuffcmdsrun)
 426                 return;
 427
 428         host_stuffcmdsrun = true;
 429         build[0] = 0;
 430         l = 0;
 431         for (i = 0;i < sys.argc;i++)
 432         {
 433                 if (sys.argv[i] && sys.argv[i][0] == '+' && (sys.argv[i][1] < '0' || sys.argv[i][1] > '9') && l + strlen(sys.argv[i]) - 1 <= sizeof(build) - 1)
 434                 {
 435                         j = 1;
 436                         while (sys.argv[i][j])
 437                                 build[l++] = sys.argv[i][j++];
 438                         i++;
 439                         for (;i < sys.argc;i++)
 440                         {
 441                                 if (!sys.argv[i])
 442                                         continue;
 443                                 if ((sys.argv[i][0] == '+' || sys.argv[i][0] == '-') && (sys.argv[i][1] < '0' || sys.argv[i][1] > '9'))
 444                                         break;
 445                                 if (l + strlen(sys.argv[i]) + 4 > sizeof(build) - 1)
 446                                         break;
 447                                 build[l++] = ' ';
 448                                 if (strchr(sys.argv[i], ' '))
 449                                         build[l++] = '\"';
 450                                 for (j = 0;sys.argv[i][j];j++)
 451                                         build[l++] = sys.argv[i][j];
 452                                 if (strchr(sys.argv[i], ' '))
 453                                         build[l++] = '\"';
 454                         }
 455                         build[l++] = '\n';
 456                         i--;
 457                 }
 458         }
 459         // now terminate the combined string and prepend it to the command buffer
 460         // we already reserved space for the terminator
 461         build[l++] = 0;
 462         Cbuf_InsertText (cmd, build);
 463 }
 464
 465 static void Cmd_Exec(cmd_state_t *cmd, const char *filename)
 466 {
 467         char *f;
 468         size_t filenameLen = strlen(filename);
 469         qboolean isdefaultcfg =
 470                 !strcmp(filename, "default.cfg") ||
 471                 (filenameLen >= 12 && !strcmp(filename + filenameLen - 12, "/default.cfg"));
 472
 473         if (!strcmp(filename, "config.cfg"))
 474         {
 475                 filename = CONFIGFILENAME;
 476                 if (COM_CheckParm("-noconfig"))
 477                         return; // don't execute config.cfg
 478         }
 479
 480         f = (char *)FS_LoadFile (filename, tempmempool, false, NULL);
 481         if (!f)
 482         {
 483                 Con_Printf("couldn't exec %s\n",filename);
 484                 return;
 485         }
 486         Con_Printf("execing %s\n",filename);
 487
 488         // if executing default.cfg for the first time, lock the cvar defaults
 489         // it may seem backwards to insert this text BEFORE the default.cfg
 490         // but Cbuf_InsertText inserts before, so this actually ends up after it.
 491         if (isdefaultcfg)
 492                 Cbuf_InsertText(cmd, "\ncvar_lockdefaults\n");
 493
 494         // insert newline after the text to make sure the last line is terminated (some text editors omit the trailing newline)
 495         // (note: insertion order here is backwards from execution order, so this adds it after the text, by calling it before...)
 496         Cbuf_InsertText (cmd, "\n");
 497         Cbuf_InsertText (cmd, f);
 498         Mem_Free(f);
 499
 500         if (isdefaultcfg)
 501         {
 502                 // special defaults for specific games go here, these execute before default.cfg
 503                 // Nehahra pushable crates malfunction in some levels if this is on
 504                 // Nehahra NPC AI is confused by blowupfallenzombies
 505                 switch(gamemode)
 506                 {
 507                 case GAME_NORMAL:
 508                         Cbuf_InsertText(cmd, "\n"
 509 "sv_gameplayfix_blowupfallenzombies 0\n"
 510 "sv_gameplayfix_findradiusdistancetobox 0\n"
 511 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 512 "sv_gameplayfix_slidemoveprojectiles 0\n"
 513 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 514 "sv_gameplayfix_setmodelrealbox 0\n"
 515 "sv_gameplayfix_droptofloorstartsolid 0\n"
 516 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 517 "sv_gameplayfix_noairborncorpse 0\n"
 518 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 519 "sv_gameplayfix_easierwaterjump 0\n"
 520 "sv_gameplayfix_delayprojectiles 0\n"
 521 "sv_gameplayfix_multiplethinksperframe 0\n"
 522 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 523 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 524 "sv_gameplayfix_swiminbmodels 0\n"
 525 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 526 "sys_ticrate 0.01388889\n"
 527 "r_shadow_gloss 1\n"
 528 "r_shadow_bumpscale_basetexture 0\n"
 529 "csqc_polygons_defaultmaterial_nocullface 0\n"
 530                                 );
 531                         break;
 532                 case GAME_NEHAHRA:
 533                         Cbuf_InsertText(cmd, "\n"
 534 "sv_gameplayfix_blowupfallenzombies 0\n"
 535 "sv_gameplayfix_findradiusdistancetobox 0\n"
 536 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 537 "sv_gameplayfix_slidemoveprojectiles 0\n"
 538 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 539 "sv_gameplayfix_setmodelrealbox 0\n"
 540 "sv_gameplayfix_droptofloorstartsolid 0\n"
 541 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 542 "sv_gameplayfix_noairborncorpse 0\n"
 543 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 544 "sv_gameplayfix_easierwaterjump 0\n"
 545 "sv_gameplayfix_delayprojectiles 0\n"
 546 "sv_gameplayfix_multiplethinksperframe 0\n"
 547 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 548 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 549 "sv_gameplayfix_swiminbmodels 0\n"
 550 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 551 "sys_ticrate 0.01388889\n"
 552 "r_shadow_gloss 1\n"
 553 "r_shadow_bumpscale_basetexture 0\n"
 554 "csqc_polygons_defaultmaterial_nocullface 0\n"
 555                                 );
 556                         break;
 557                 // 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.
 558                 // 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
 559                 // hipnotic mission pack has issues in their proximity mine sticking code, which causes them to bounce off.
 560                 case GAME_HIPNOTIC:
 561                 case GAME_QUOTH:
 562                         Cbuf_InsertText(cmd, "\n"
 563 "sv_gameplayfix_blowupfallenzombies 0\n"
 564 "sv_gameplayfix_findradiusdistancetobox 0\n"
 565 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 566 "sv_gameplayfix_slidemoveprojectiles 0\n"
 567 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 568 "sv_gameplayfix_setmodelrealbox 0\n"
 569 "sv_gameplayfix_droptofloorstartsolid 0\n"
 570 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 571 "sv_gameplayfix_noairborncorpse 0\n"
 572 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 573 "sv_gameplayfix_easierwaterjump 0\n"
 574 "sv_gameplayfix_delayprojectiles 0\n"
 575 "sv_gameplayfix_multiplethinksperframe 0\n"
 576 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 577 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 578 "sv_gameplayfix_swiminbmodels 0\n"
 579 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 580 "sys_ticrate 0.02\n"
 581 "r_shadow_gloss 1\n"
 582 "r_shadow_bumpscale_basetexture 0\n"
 583 "csqc_polygons_defaultmaterial_nocullface 0\n"
 584                                 );
 585                         break;
 586                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
 587                 case GAME_ROGUE:
 588                         Cbuf_InsertText(cmd, "\n"
 589 "sv_gameplayfix_blowupfallenzombies 0\n"
 590 "sv_gameplayfix_findradiusdistancetobox 0\n"
 591 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 592 "sv_gameplayfix_slidemoveprojectiles 0\n"
 593 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 594 "sv_gameplayfix_setmodelrealbox 0\n"
 595 "sv_gameplayfix_droptofloorstartsolid 0\n"
 596 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 597 "sv_gameplayfix_noairborncorpse 0\n"
 598 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 599 "sv_gameplayfix_easierwaterjump 0\n"
 600 "sv_gameplayfix_delayprojectiles 0\n"
 601 "sv_gameplayfix_multiplethinksperframe 0\n"
 602 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 603 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 604 "sv_gameplayfix_swiminbmodels 0\n"
 605 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 606 "sys_ticrate 0.01388889\n"
 607 "r_shadow_gloss 1\n"
 608 "r_shadow_bumpscale_basetexture 0\n"
 609 "csqc_polygons_defaultmaterial_nocullface 0\n"
 610                                 );
 611                         break;
 612                 case GAME_TENEBRAE:
 613                         Cbuf_InsertText(cmd, "\n"
 614 "sv_gameplayfix_blowupfallenzombies 0\n"
 615 "sv_gameplayfix_findradiusdistancetobox 0\n"
 616 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 617 "sv_gameplayfix_slidemoveprojectiles 0\n"
 618 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 619 "sv_gameplayfix_setmodelrealbox 0\n"
 620 "sv_gameplayfix_droptofloorstartsolid 0\n"
 621 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 622 "sv_gameplayfix_noairborncorpse 0\n"
 623 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 624 "sv_gameplayfix_easierwaterjump 0\n"
 625 "sv_gameplayfix_delayprojectiles 0\n"
 626 "sv_gameplayfix_multiplethinksperframe 0\n"
 627 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 628 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 629 "sv_gameplayfix_swiminbmodels 0\n"
 630 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 631 "sys_ticrate 0.01388889\n"
 632 "r_shadow_gloss 2\n"
 633 "r_shadow_bumpscale_basetexture 4\n"
 634 "csqc_polygons_defaultmaterial_nocullface 0\n"
 635                                 );
 636                         break;
 637                 case GAME_NEXUIZ:
 638                         Cbuf_InsertText(cmd, "\n"
 639 "sv_gameplayfix_blowupfallenzombies 1\n"
 640 "sv_gameplayfix_findradiusdistancetobox 1\n"
 641 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 642 "sv_gameplayfix_slidemoveprojectiles 1\n"
 643 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 644 "sv_gameplayfix_setmodelrealbox 1\n"
 645 "sv_gameplayfix_droptofloorstartsolid 1\n"
 646 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 647 "sv_gameplayfix_noairborncorpse 1\n"
 648 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 649 "sv_gameplayfix_easierwaterjump 1\n"
 650 "sv_gameplayfix_delayprojectiles 1\n"
 651 "sv_gameplayfix_multiplethinksperframe 1\n"
 652 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 653 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 654 "sv_gameplayfix_swiminbmodels 1\n"
 655 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 656 "sys_ticrate 0.01388889\n"
 657 "sv_gameplayfix_q2airaccelerate 1\n"
 658 "sv_gameplayfix_stepmultipletimes 1\n"
 659 "csqc_polygons_defaultmaterial_nocullface 1\n"
 660 "con_chatsound_team_mask 13\n"
 661                                 );
 662                         break;
 663                 case GAME_XONOTIC:
 664                 case GAME_VORETOURNAMENT:
 665                         // 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
 666                         Cbuf_InsertText(cmd, "\n"
 667 "csqc_polygons_defaultmaterial_nocullface 1\n"
 668 "con_chatsound_team_mask 13\n"
 669 "sv_gameplayfix_customstats 1\n"
 670                                 );
 671                         break;
 672                 // Steel Storm: Burning Retribution csqc misinterprets CSQC_InputEvent if type is a value other than 0 or 1
 673                 case GAME_STEELSTORM:
 674                         Cbuf_InsertText(cmd, "\n"
 675 "sv_gameplayfix_blowupfallenzombies 1\n"
 676 "sv_gameplayfix_findradiusdistancetobox 1\n"
 677 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 678 "sv_gameplayfix_slidemoveprojectiles 1\n"
 679 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 680 "sv_gameplayfix_setmodelrealbox 1\n"
 681 "sv_gameplayfix_droptofloorstartsolid 1\n"
 682 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 683 "sv_gameplayfix_noairborncorpse 1\n"
 684 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 685 "sv_gameplayfix_easierwaterjump 1\n"
 686 "sv_gameplayfix_delayprojectiles 1\n"
 687 "sv_gameplayfix_multiplethinksperframe 1\n"
 688 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 689 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 690 "sv_gameplayfix_swiminbmodels 1\n"
 691 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 692 "sys_ticrate 0.01388889\n"
 693 "cl_csqc_generatemousemoveevents 0\n"
 694 "csqc_polygons_defaultmaterial_nocullface 1\n"
 695                                 );
 696                         break;
 697                 default:
 698                         Cbuf_InsertText(cmd, "\n"
 699 "sv_gameplayfix_blowupfallenzombies 1\n"
 700 "sv_gameplayfix_findradiusdistancetobox 1\n"
 701 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 702 "sv_gameplayfix_slidemoveprojectiles 1\n"
 703 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 704 "sv_gameplayfix_setmodelrealbox 1\n"
 705 "sv_gameplayfix_droptofloorstartsolid 1\n"
 706 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 707 "sv_gameplayfix_noairborncorpse 1\n"
 708 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 709 "sv_gameplayfix_easierwaterjump 1\n"
 710 "sv_gameplayfix_delayprojectiles 1\n"
 711 "sv_gameplayfix_multiplethinksperframe 1\n"
 712 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 713 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 714 "sv_gameplayfix_swiminbmodels 1\n"
 715 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 716 "sys_ticrate 0.01388889\n"
 717 "csqc_polygons_defaultmaterial_nocullface 0\n"
 718                                 );
 719                         break;
 720                 }
 721         }
 722 }
 723
 724 /*
 725 ===============
 726 Cmd_Exec_f
 727 ===============
 728 */
 729 static void Cmd_Exec_f (cmd_state_t *cmd)
 730 {
 731         fssearch_t *s;
 732         int i;
 733
 734         if (Cmd_Argc(cmd) != 2)
 735         {
 736                 Con_Print("exec <filename> : execute a script file\n");
 737                 return;
 738         }
 739
 740         s = FS_Search(Cmd_Argv(cmd, 1), true, true, NULL);
 741         if(!s || !s->numfilenames)
 742         {
 743                 Con_Printf("couldn't exec %s\n",Cmd_Argv(cmd, 1));
 744                 return;
 745         }
 746
 747         for(i = 0; i < s->numfilenames; ++i)
 748                 Cmd_Exec(cmd, s->filenames[i]);
 749
 750         FS_FreeSearch(s);
 751 }
 752
 753
 754 /*
 755 ===============
 756 Cmd_Echo_f
 757
 758 Just prints the rest of the line to the console
 759 ===============
 760 */
 761 static void Cmd_Echo_f (cmd_state_t *cmd)
 762 {
 763         int             i;
 764
 765         for (i=1 ; i<Cmd_Argc(cmd) ; i++)
 766                 Con_Printf("%s ",Cmd_Argv(cmd, i));
 767         Con_Print("\n");
 768 }
 769
 770 // DRESK - 5/14/06
 771 // Support Doom3-style Toggle Console Command
 772 /*
 773 ===============
 774 Cmd_Toggle_f
 775
 776 Toggles a specified console variable amongst the values specified (default is 0 and 1)
 777 ===============
 778 */
 779 static void Cmd_Toggle_f(cmd_state_t *cmd)
 780 {
 781         // Acquire Number of Arguments
 782         int nNumArgs = Cmd_Argc(cmd);
 783
 784         if(nNumArgs == 1)
 785                 // No Arguments Specified; Print Usage
 786                 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");
 787         else
 788         { // Correct Arguments Specified
 789                 // Acquire Potential CVar
 790                 cvar_t* cvCVar = Cvar_FindVar(cmd->cvars, Cmd_Argv(cmd, 1), cmd->cvars_flagsmask);
 791
 792                 if(cvCVar != NULL)
 793                 { // Valid CVar
 794                         if(nNumArgs == 2)
 795                         { // Default Usage
 796                                 if(cvCVar->integer)
 797                                         Cvar_SetValueQuick(cvCVar, 0);
 798                                 else
 799                                         Cvar_SetValueQuick(cvCVar, 1);
 800                         }
 801                         else
 802                         if(nNumArgs == 3)
 803                         { // 0 and Specified Usage
 804                                 if(cvCVar->integer == atoi(Cmd_Argv(cmd, 2) ) )
 805                                         // CVar is Specified Value; // Reset to 0
 806                                         Cvar_SetValueQuick(cvCVar, 0);
 807                                 else
 808                                 if(cvCVar->integer == 0)
 809                                         // CVar is 0; Specify Value
 810                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 811                                 else
 812                                         // CVar does not match; Reset to 0
 813                                         Cvar_SetValueQuick(cvCVar, 0);
 814                         }
 815                         else
 816                         { // Variable Values Specified
 817                                 int nCnt;
 818                                 int bFound = 0;
 819
 820                                 for(nCnt = 2; nCnt < nNumArgs; nCnt++)
 821                                 { // Cycle through Values
 822                                         if( strcmp(cvCVar->string, Cmd_Argv(cmd, nCnt) ) == 0)
 823                                         { // Current Value Located; Increment to Next
 824                                                 if( (nCnt + 1) == nNumArgs)
 825                                                         // Max Value Reached; Reset
 826                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 827                                                 else
 828                                                         // Next Value
 829                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, nCnt + 1) );
 830
 831                                                 // End Loop
 832                                                 nCnt = nNumArgs;
 833                                                 // Assign Found
 834                                                 bFound = 1;
 835                                         }
 836                                 }
 837                                 if(!bFound)
 838                                         // Value not Found; Reset to Original
 839                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 840                         }
 841
 842                 }
 843                 else
 844                 { // Invalid CVar
 845                         Con_Printf("ERROR : CVar '%s' not found\n", Cmd_Argv(cmd, 1) );
 846                 }
 847         }
 848 }
 849
 850 /*
 851 ===============
 852 Cmd_Alias_f
 853
 854 Creates a new command that executes a command string (possibly ; seperated)
 855 ===============
 856 */
 857 static void Cmd_Alias_f (cmd_state_t *cmd)
 858 {
 859         cmdalias_t      *a;
 860         char            line[MAX_INPUTLINE];
 861         int                     i, c;
 862         const char              *s;
 863         size_t          alloclen;
 864
 865         if (Cmd_Argc(cmd) == 1)
 866         {
 867                 Con_Print("Current alias commands:\n");
 868                 for (a = cmd->userdefined->alias ; a ; a=a->next)
 869                         Con_Printf("%s : %s", a->name, a->value);
 870                 return;
 871         }
 872
 873         s = Cmd_Argv(cmd, 1);
 874         if (strlen(s) >= MAX_ALIAS_NAME)
 875         {
 876                 Con_Print("Alias name is too long\n");
 877                 return;
 878         }
 879
 880         // if the alias already exists, reuse it
 881         for (a = cmd->userdefined->alias ; a ; a=a->next)
 882         {
 883                 if (!strcmp(s, a->name))
 884                 {
 885                         Z_Free (a->value);
 886                         break;
 887                 }
 888         }
 889
 890         if (!a)
 891         {
 892                 cmdalias_t *prev, *current;
 893
 894                 a = (cmdalias_t *)Z_Malloc (sizeof(cmdalias_t));
 895                 strlcpy (a->name, s, sizeof (a->name));
 896                 // insert it at the right alphanumeric position
 897                 for( prev = NULL, current = cmd->userdefined->alias ; current && strcmp( current->name, a->name ) < 0 ; prev = current, current = current->next )
 898                         ;
 899                 if( prev ) {
 900                         prev->next = a;
 901                 } else {
 902                         cmd->userdefined->alias = a;
 903                 }
 904                 a->next = current;
 905         }
 906
 907
 908 // copy the rest of the command line
 909         line[0] = 0;            // start out with a null string
 910         c = Cmd_Argc(cmd);
 911         for (i=2 ; i < c ; i++)
 912         {
 913                 if (i != 2)
 914                         strlcat (line, " ", sizeof (line));
 915                 strlcat (line, Cmd_Argv(cmd, i), sizeof (line));
 916         }
 917         strlcat (line, "\n", sizeof (line));
 918
 919         alloclen = strlen (line) + 1;
 920         if(alloclen >= 2)
 921                 line[alloclen - 2] = '\n'; // to make sure a newline is appended even if too long
 922         a->value = (char *)Z_Malloc (alloclen);
 923         memcpy (a->value, line, alloclen);
 924 }
 925
 926 /*
 927 ===============
 928 Cmd_UnAlias_f
 929
 930 Remove existing aliases.
 931 ===============
 932 */
 933 static void Cmd_UnAlias_f (cmd_state_t *cmd)
 934 {
 935         cmdalias_t      *a, *p;
 936         int i;
 937         const char *s;
 938
 939         if(Cmd_Argc(cmd) == 1)
 940         {
 941                 Con_Print("unalias: Usage: unalias alias1 [alias2 ...]\n");
 942                 return;
 943         }
 944
 945         for(i = 1; i < Cmd_Argc(cmd); ++i)
 946         {
 947                 s = Cmd_Argv(cmd, i);
 948                 p = NULL;
 949                 for(a = cmd->userdefined->alias; a; p = a, a = a->next)
 950                 {
 951                         if(!strcmp(s, a->name))
 952                         {
 953                                 if (a->initstate) // we can not remove init aliases
 954                                         continue;
 955                                 if(a == cmd->userdefined->alias)
 956                                         cmd->userdefined->alias = a->next;
 957                                 if(p)
 958                                         p->next = a->next;
 959                                 Z_Free(a->value);
 960                                 Z_Free(a);
 961                                 break;
 962                         }
 963                 }
 964                 if(!a)
 965                         Con_Printf("unalias: %s alias not found\n", s);
 966         }
 967 }
 968
 969 /*
 970 =============================================================================
 971
 972                                         COMMAND EXECUTION
 973
 974 =============================================================================
 975 */
 976
 977 static const char *Cmd_GetDirectCvarValue(cmd_state_t *cmd, const char *varname, cmdalias_t *alias, qboolean *is_multiple)
 978 {
 979         cvar_t *cvar;
 980         long argno;
 981         char *endptr;
 982         static char vabuf[1024]; // cmd_mutex
 983
 984         if(is_multiple)
 985                 *is_multiple = false;
 986
 987         if(!varname || !*varname)
 988                 return NULL;
 989
 990         if(alias)
 991         {
 992                 if(!strcmp(varname, "*"))
 993                 {
 994                         if(is_multiple)
 995                                 *is_multiple = true;
 996                         return Cmd_Args(cmd);
 997                 }
 998                 else if(!strcmp(varname, "#"))
 999                 {
1000                         return va(vabuf, sizeof(vabuf), "%d", Cmd_Argc(cmd));
1001                 }
1002                 else if(varname[strlen(varname) - 1] == '-')
1003                 {
1004                         argno = strtol(varname, &endptr, 10);
1005                         if(endptr == varname + strlen(varname) - 1)
1006                         {
1007                                 // whole string is a number, apart from the -
1008                                 const char *p = Cmd_Args(cmd);
1009                                 for(; argno > 1; --argno)
1010                                         if(!COM_ParseToken_Console(&p))
1011                                                 break;
1012                                 if(p)
1013                                 {
1014                                         if(is_multiple)
1015                                                 *is_multiple = true;
1016
1017                                         // kill pre-argument whitespace
1018                                         for (;*p && ISWHITESPACE(*p);p++)
1019                                                 ;
1020
1021                                         return p;
1022                                 }
1023                         }
1024                 }
1025                 else
1026                 {
1027                         argno = strtol(varname, &endptr, 10);
1028                         if(*endptr == 0)
1029                         {
1030                                 // whole string is a number
1031                                 // NOTE: we already made sure we don't have an empty cvar name!
1032                                 if(argno >= 0 && argno < Cmd_Argc(cmd))
1033                                         return Cmd_Argv(cmd, argno);
1034                         }
1035                 }
1036         }
1037
1038         if((cvar = Cvar_FindVar(cmd->cvars, varname, cmd->cvars_flagsmask)) && !(cvar->flags & CVAR_PRIVATE))
1039                 return cvar->string;
1040
1041         return NULL;
1042 }
1043
1044 qboolean Cmd_QuoteString(char *out, size_t outlen, const char *in, const char *quoteset, qboolean putquotes)
1045 {
1046         qboolean quote_quot = !!strchr(quoteset, '"');
1047         qboolean quote_backslash = !!strchr(quoteset, '\\');
1048         qboolean quote_dollar = !!strchr(quoteset, '$');
1049
1050         if(putquotes)
1051         {
1052                 if(outlen <= 2)
1053                 {
1054                         *out++ = 0;
1055                         return false;
1056                 }
1057                 *out++ = '"'; --outlen;
1058                 --outlen;
1059         }
1060
1061         while(*in)
1062         {
1063                 if(*in == '"' && quote_quot)
1064                 {
1065                         if(outlen <= 2)
1066                                 goto fail;
1067                         *out++ = '\\'; --outlen;
1068                         *out++ = '"'; --outlen;
1069                 }
1070                 else if(*in == '\\' && quote_backslash)
1071                 {
1072                         if(outlen <= 2)
1073                                 goto fail;
1074                         *out++ = '\\'; --outlen;
1075                         *out++ = '\\'; --outlen;
1076                 }
1077                 else if(*in == '$' && quote_dollar)
1078                 {
1079                         if(outlen <= 2)
1080                                 goto fail;
1081                         *out++ = '$'; --outlen;
1082                         *out++ = '$'; --outlen;
1083                 }
1084                 else
1085                 {
1086                         if(outlen <= 1)
1087                                 goto fail;
1088                         *out++ = *in; --outlen;
1089                 }
1090                 ++in;
1091         }
1092         if(putquotes)
1093                 *out++ = '"';
1094         *out++ = 0;
1095         return true;
1096 fail:
1097         if(putquotes)
1098                 *out++ = '"';
1099         *out++ = 0;
1100         return false;
1101 }
1102
1103 static const char *Cmd_GetCvarValue(cmd_state_t *cmd, const char *var, size_t varlen, cmdalias_t *alias)
1104 {
1105         static char varname[MAX_INPUTLINE]; // cmd_mutex
1106         static char varval[MAX_INPUTLINE]; // cmd_mutex
1107         const char *varstr = NULL;
1108         char *varfunc;
1109         qboolean required = false;
1110         qboolean optional = false;
1111         static char asis[] = "asis"; // just to suppress const char warnings
1112
1113         if(varlen >= MAX_INPUTLINE)
1114                 varlen = MAX_INPUTLINE - 1;
1115         memcpy(varname, var, varlen);
1116         varname[varlen] = 0;
1117         varfunc = strchr(varname, ' ');
1118
1119         if(varfunc)
1120         {
1121                 *varfunc = 0;
1122                 ++varfunc;
1123         }
1124
1125         if(*var == 0)
1126         {
1127                 // empty cvar name?
1128                 if(alias)
1129                         Con_Printf(CON_WARN "Warning: Could not expand $ in alias %s\n", alias->name);
1130                 else
1131                         Con_Printf(CON_WARN "Warning: Could not expand $\n");
1132                 return "$";
1133         }
1134
1135         if(varfunc)
1136         {
1137                 char *p;
1138                 // ? means optional
1139                 while((p = strchr(varfunc, '?')))
1140                 {
1141                         optional = true;
1142                         memmove(p, p+1, strlen(p)); // with final NUL
1143                 }
1144                 // ! means required
1145                 while((p = strchr(varfunc, '!')))
1146                 {
1147                         required = true;
1148                         memmove(p, p+1, strlen(p)); // with final NUL
1149                 }
1150                 // kill spaces
1151                 while((p = strchr(varfunc, ' ')))
1152                 {
1153                         memmove(p, p+1, strlen(p)); // with final NUL
1154                 }
1155                 // if no function is left, NULL it
1156                 if(!*varfunc)
1157                         varfunc = NULL;
1158         }
1159
1160         if(varname[0] == '$')
1161                 varstr = Cmd_GetDirectCvarValue(cmd, Cmd_GetDirectCvarValue(cmd, varname + 1, alias, NULL), alias, NULL);
1162         else
1163         {
1164                 qboolean is_multiple = false;
1165                 // Exception: $* and $n- don't use the quoted form by default
1166                 varstr = Cmd_GetDirectCvarValue(cmd, varname, alias, &is_multiple);
1167                 if(is_multiple)
1168                         if(!varfunc)
1169                                 varfunc = asis;
1170         }
1171
1172         if(!varstr)
1173         {
1174                 if(required)
1175                 {
1176                         if(alias)
1177                                 Con_Printf(CON_ERROR "Error: Could not expand $%s in alias %s\n", varname, alias->name);
1178                         else
1179                                 Con_Printf(CON_ERROR "Error: Could not expand $%s\n", varname);
1180                         return NULL;
1181                 }
1182                 else if(optional)
1183                 {
1184                         return "";
1185                 }
1186                 else
1187                 {
1188                         if(alias)
1189                                 Con_Printf(CON_WARN "Warning: Could not expand $%s in alias %s\n", varname, alias->name);
1190                         else
1191                                 Con_Printf(CON_WARN "Warning: Could not expand $%s\n", varname);
1192                         dpsnprintf(varval, sizeof(varval), "$%s", varname);
1193                         return varval;
1194                 }
1195         }
1196
1197         if(!varfunc || !strcmp(varfunc, "q")) // note: quoted form is default, use "asis" to override!
1198         {
1199                 // quote it so it can be used inside double quotes
1200                 // we just need to replace " by \", and of course, double backslashes
1201                 Cmd_QuoteString(varval, sizeof(varval), varstr, "\"\\", false);
1202                 return varval;
1203         }
1204         else if(!strcmp(varfunc, "asis"))
1205         {
1206                 return varstr;
1207         }
1208         else
1209                 Con_Printf("Unknown variable function %s\n", varfunc);
1210
1211         return varstr;
1212 }
1213
1214 /*
1215 Cmd_PreprocessString
1216
1217 Preprocesses strings and replaces $*, $param#, $cvar accordingly. Also strips comments.
1218 */
1219 static qboolean Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias ) {
1220         const char *in;
1221         size_t eat, varlen;
1222         unsigned outlen;
1223         const char *val;
1224
1225         // don't crash if there's no room in the outtext buffer
1226         if( maxoutlen == 0 ) {
1227                 return false;
1228         }
1229         maxoutlen--; // because of \0
1230
1231         in = intext;
1232         outlen = 0;
1233
1234         while( *in && outlen < maxoutlen ) {
1235                 if( *in == '$' ) {
1236                         // this is some kind of expansion, see what comes after the $
1237                         in++;
1238
1239                         // The console does the following preprocessing:
1240                         //
1241                         // - $$ is transformed to a single dollar sign.
1242                         // - $var or ${var} are expanded to the contents of the named cvar,
1243                         //   with quotation marks and backslashes quoted so it can safely
1244                         //   be used inside quotation marks (and it should always be used
1245                         //   that way)
1246                         // - ${var asis} inserts the cvar value as is, without doing this
1247                         //   quoting
1248                         // - ${var ?} silently expands to the empty string if
1249                         //   $var does not exist
1250                         // - ${var !} fails expansion and executes nothing if
1251                         //   $var does not exist
1252                         // - prefix the cvar name with a dollar sign to do indirection;
1253                         //   for example, if $x has the value timelimit, ${$x} will return
1254                         //   the value of $timelimit
1255                         // - when expanding an alias, the special variable name $* refers
1256                         //   to all alias parameters, and a number refers to that numbered
1257                         //   alias parameter, where the name of the alias is $0, the first
1258                         //   parameter is $1 and so on; as a special case, $* inserts all
1259                         //   parameters, without extra quoting, so one can use $* to just
1260                         //   pass all parameters around. All parameters starting from $n
1261                         //   can be referred to as $n- (so $* is equivalent to $1-).
1262                         // - ${* q} and ${n- q} force quoting anyway
1263                         //
1264                         // Note: when expanding an alias, cvar expansion is done in the SAME step
1265                         // as alias expansion so that alias parameters or cvar values containing
1266                         // dollar signs have no unwanted bad side effects. However, this needs to
1267                         // be accounted for when writing complex aliases. For example,
1268                         //   alias foo "set x NEW; echo $x"
1269                         // actually expands to
1270                         //   "set x NEW; echo OLD"
1271                         // and will print OLD! To work around this, use a second alias:
1272                         //   alias foo "set x NEW; foo2"
1273                         //   alias foo2 "echo $x"
1274                         //
1275                         // Also note: lines starting with alias are exempt from cvar expansion.
1276                         // If you want cvar expansion, write "alias" instead:
1277                         //
1278                         //   set x 1
1279                         //   alias foo "echo $x"
1280                         //   "alias" bar "echo $x"
1281                         //   set x 2
1282                         //
1283                         // foo will print 2, because the variable $x will be expanded when the alias
1284                         // gets expanded. bar will print 1, because the variable $x was expanded
1285                         // at definition time. foo can be equivalently defined as
1286                         //
1287                         //   "alias" foo "echo $$x"
1288                         //
1289                         // because at definition time, $$ will get replaced to a single $.
1290
1291                         if( *in == '$' ) {
1292                                 val = "$";
1293                                 eat = 1;
1294                         } else if(*in == '{') {
1295                                 varlen = strcspn(in + 1, "}");
1296                                 if(in[varlen + 1] == '}')
1297                                 {
1298                                         val = Cmd_GetCvarValue(cmd, in + 1, varlen, alias);
1299                                         if(!val)
1300                                                 return false;
1301                                         eat = varlen + 2;
1302                                 }
1303                                 else
1304                                 {
1305                                         // ran out of data?
1306                                         val = NULL;
1307                                         eat = varlen + 1;
1308                                 }
1309                         } else {
1310                                 varlen = strspn(in, "#*0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-");
1311                                 val = Cmd_GetCvarValue(cmd, in, varlen, alias);
1312                                 if(!val)
1313                                         return false;
1314                                 eat = varlen;
1315                         }
1316                         if(val)
1317                         {
1318                                 // insert the cvar value
1319                                 while(*val && outlen < maxoutlen)
1320                                         outtext[outlen++] = *val++;
1321                                 in += eat;
1322                         }
1323                         else
1324                         {
1325                                 // copy the unexpanded text
1326                                 outtext[outlen++] = '$';
1327                                 while(eat && outlen < maxoutlen)
1328                                 {
1329                                         outtext[outlen++] = *in++;
1330                                         --eat;
1331                                 }
1332                         }
1333                 }
1334                 else
1335                         outtext[outlen++] = *in++;
1336         }
1337         outtext[outlen] = 0;
1338         return true;
1339 }
1340
1341 /*
1342 ============
1343 Cmd_ExecuteAlias
1344
1345 Called for aliases and fills in the alias into the cbuffer
1346 ============
1347 */
1348 static void Cmd_ExecuteAlias (cmd_state_t *cmd, cmdalias_t *alias)
1349 {
1350         static char buffer[ MAX_INPUTLINE ]; // cmd_mutex
1351         static char buffer2[ MAX_INPUTLINE ]; // cmd_mutex
1352         qboolean ret = Cmd_PreprocessString( cmd, alias->value, buffer, sizeof(buffer) - 2, alias );
1353         if(!ret)
1354                 return;
1355         // insert at start of command buffer, so that aliases execute in order
1356         // (fixes bug introduced by Black on 20050705)
1357
1358         // Note: Cbuf_PreprocessString will be called on this string AGAIN! So we
1359         // have to make sure that no second variable expansion takes place, otherwise
1360         // alias parameters containing dollar signs can have bad effects.
1361         Cmd_QuoteString(buffer2, sizeof(buffer2), buffer, "$", false);
1362         Cbuf_InsertText(cmd, buffer2);
1363 }
1364
1365 /*
1366 ========
1367 Cmd_List
1368
1369         CmdList Added by EvilTypeGuy eviltypeguy@qeradiant.com
1370         Thanks to Matthias "Maddes" Buecher, http://www.inside3d.com/qip/
1371
1372 ========
1373 */
1374 static void Cmd_List_f (cmd_state_t *cmd)
1375 {
1376         cmd_function_t *func;
1377         const char *partial;
1378         size_t len;
1379         int count;
1380         qboolean ispattern;
1381
1382         if (Cmd_Argc(cmd) > 1)
1383         {
1384                 partial = Cmd_Argv(cmd, 1);
1385                 len = strlen(partial);
1386                 ispattern = (strchr(partial, '*') || strchr(partial, '?'));
1387         }
1388         else
1389         {
1390                 partial = NULL;
1391                 len = 0;
1392                 ispattern = false;
1393         }
1394
1395         count = 0;
1396         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1397         {
1398                 if (partial && (ispattern ? !matchpattern_with_separator(func->name, partial, false, "", false) : strncmp(partial, func->name, len)))
1399                         continue;
1400                 Con_Printf("%s : %s\n", func->name, func->description);
1401                 count++;
1402         }
1403         for (func = cmd->engine_functions; func; func = func->next)
1404         {
1405                 if (partial && (ispattern ? !matchpattern_with_separator(func->name, partial, false, "", false) : strncmp(partial, func->name, len)))
1406                         continue;
1407                 Con_Printf("%s : %s\n", func->name, func->description);
1408                 count++;
1409         }
1410
1411         if (len)
1412         {
1413                 if(ispattern)
1414                         Con_Printf("%i Command%s matching \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1415                 else
1416                         Con_Printf("%i Command%s beginning with \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1417         }
1418         else
1419                 Con_Printf("%i Command%s\n\n", count, (count > 1) ? "s" : "");
1420 }
1421
1422 static void Cmd_Apropos_f(cmd_state_t *cmd)
1423 {
1424         cmd_function_t *func;
1425         cvar_t *cvar;
1426         cmdalias_t *alias;
1427         const char *partial;
1428         int count;
1429         qboolean ispattern;
1430         char vabuf[1024];
1431
1432         if (Cmd_Argc(cmd) > 1)
1433                 partial = Cmd_Args(cmd);
1434         else
1435         {
1436                 Con_Printf("usage: %s <string>\n",Cmd_Argv(cmd, 0));
1437                 return;
1438         }
1439
1440         ispattern = partial && (strchr(partial, '*') || strchr(partial, '?'));
1441         if(!ispattern)
1442                 partial = va(vabuf, sizeof(vabuf), "*%s*", partial);
1443
1444         count = 0;
1445         for (cvar = cmd->cvars->vars; cvar; cvar = cvar->next)
1446         {
1447                 if (matchpattern_with_separator(cvar->name, partial, true, "", false) ||
1448                     matchpattern_with_separator(cvar->description, partial, true, "", false))
1449                 {
1450                         Con_Printf ("cvar ");
1451                         Cvar_PrintHelp(cvar, cvar->name, true);
1452                         count++;
1453                 }
1454                 for (int i = 0; i < cvar->aliasindex; i++)
1455                 {
1456                         if (matchpattern_with_separator(cvar->aliases[i], partial, true, "", false))
1457                         {
1458                                 Con_Printf ("cvar ");
1459                                 Cvar_PrintHelp(cvar, cvar->aliases[i], true);
1460                                 count++;
1461                         }
1462                 }
1463         }
1464         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1465         {
1466                 if (!matchpattern_with_separator(func->name, partial, true, "", false))
1467                         if (!matchpattern_with_separator(func->description, partial, true, "", false))
1468                                 continue;
1469                 Con_Printf("command ^2%s^7: %s\n", func->name, func->description);
1470                 count++;
1471         }
1472         for (func = cmd->engine_functions; func; func = func->next)
1473         {
1474                 if (!matchpattern_with_separator(func->name, partial, true, "", false))
1475                 if (!matchpattern_with_separator(func->description, partial, true, "", false))
1476                         continue;
1477                 Con_Printf("command ^2%s^7: %s\n", func->name, func->description);
1478                 count++;
1479         }
1480         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1481         {
1482                 // procede here a bit differently as an alias value always got a final \n
1483                 if (!matchpattern_with_separator(alias->name, partial, true, "", false))
1484                 if (!matchpattern_with_separator(alias->value, partial, true, "\n", false)) // when \n is as separator wildcards don't match it
1485                         continue;
1486                 Con_Printf("alias ^5%s^7: %s", alias->name, alias->value); // do not print an extra \n
1487                 count++;
1488         }
1489         Con_Printf("%i result%s\n\n", count, (count > 1) ? "s" : "");
1490 }
1491
1492 /*
1493 ============
1494 Cmd_Init
1495 ============
1496 */
1497 void Cmd_Init(void)
1498 {
1499         cmd_iter_t *cmd_iter;
1500         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
1501         {
1502                 cmd_state_t *cmd = cmd_iter->cmd;
1503                 cmd->mempool = Mem_AllocPool("commands", 0, NULL);
1504                 // space for commands and script files
1505                 cmd->text.data = cmd->text_buf;
1506                 cmd->text.maxsize = sizeof(cmd->text_buf);
1507                 cmd->text.cursize = 0;
1508                 cmd->null_string = "";
1509         }
1510         // client console can see server cvars because the user may start a server
1511         cmd_client.cvars = &cvars_all;
1512         cmd_client.cvars_flagsmask = CVAR_CLIENT | CVAR_SERVER;
1513         cmd_client.cmd_flags = CMD_CLIENT | CMD_CLIENT_FROM_SERVER;
1514         cmd_client.auto_flags = CMD_SERVER_FROM_CLIENT;
1515         cmd_client.auto_function = CL_ForwardToServer_f; // FIXME: Move this to the client.
1516         cmd_client.userdefined = &cmd_userdefined_all;
1517         cmd_client.text_mutex = Thread_CreateMutex();
1518         // dedicated server console can only see server cvars, there is no client
1519         cmd_server.cvars = &cvars_all;
1520         cmd_server.cvars_flagsmask = CVAR_SERVER;
1521         cmd_server.cmd_flags = CMD_SERVER;
1522         cmd_server.auto_flags = 0;
1523         cmd_server.auto_function = NULL;
1524         cmd_server.userdefined = &cmd_userdefined_all;
1525         cmd_server.text_mutex = Thread_CreateMutex();
1526         // server commands received from clients have no reason to access cvars, cvar expansion seems perilous.
1527         cmd_serverfromclient.cvars = &cvars_null;
1528         cmd_serverfromclient.cvars_flagsmask = 0;
1529         cmd_serverfromclient.cmd_flags = CMD_SERVER_FROM_CLIENT | CMD_USERINFO;
1530         cmd_serverfromclient.auto_flags = 0;
1531         cmd_serverfromclient.auto_function = NULL;
1532         cmd_serverfromclient.userdefined = &cmd_userdefined_null;
1533         cmd_serverfromclient.text_mutex = Thread_CreateMutex();
1534
1535 //
1536 // register our commands
1537 //
1538         // client-only commands
1539         Cmd_AddCommand(CMD_SHARED, "wait", Cmd_Wait_f, "make script execution wait for next rendered frame");
1540         Cmd_AddCommand(CMD_CLIENT, "cprint", Cmd_Centerprint_f, "print something at the screen center");
1541
1542         // maintenance commands used for upkeep of cvars and saved configs
1543         Cmd_AddCommand(CMD_SHARED, "stuffcmds", Cmd_StuffCmds_f, "execute commandline parameters (must be present in quake.rc script)");
1544         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");
1545         Cmd_AddCommand(CMD_SHARED, "cvar_resettodefaults_all", Cvar_ResetToDefaults_All_f, "sets all cvars to their locked default values");
1546         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)");
1547         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)");
1548
1549         // general console commands used in multiple environments
1550         Cmd_AddCommand(CMD_SHARED, "exec", Cmd_Exec_f, "execute a script file");
1551         Cmd_AddCommand(CMD_SHARED, "echo",Cmd_Echo_f, "print a message to the console (useful in scripts)");
1552         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");
1553         Cmd_AddCommand(CMD_SHARED, "unalias",Cmd_UnAlias_f, "remove an alias");
1554         Cmd_AddCommand(CMD_SHARED, "set", Cvar_Set_f, "create or change the value of a console variable");
1555         Cmd_AddCommand(CMD_SHARED, "seta", Cvar_SetA_f, "create or change the value of a console variable that will be saved to config.cfg");
1556         Cmd_AddCommand(CMD_SHARED, "unset", Cvar_Del_f, "delete a cvar (does not work for static ones like _cl_name, or read-only ones)");
1557
1558 #ifdef FILLALLCVARSWITHRUBBISH
1559         Cmd_AddCommand(CMD_SHARED, "fillallcvarswithrubbish", Cvar_FillAll_f, "fill all cvars with a specified number of characters to provoke buffer overruns");
1560 #endif /* FILLALLCVARSWITHRUBBISH */
1561
1562         // 2000-01-09 CmdList, CvarList commands By Matthias "Maddes" Buecher
1563         // Added/Modified by EvilTypeGuy eviltypeguy@qeradiant.com
1564         Cmd_AddCommand(CMD_SHARED, "cmdlist", Cmd_List_f, "lists all console commands beginning with the specified prefix or matching the specified wildcard pattern");
1565         Cmd_AddCommand(CMD_SHARED, "cvarlist", Cvar_List_f, "lists all console variables beginning with the specified prefix or matching the specified wildcard pattern");
1566         Cmd_AddCommand(CMD_SHARED, "apropos", Cmd_Apropos_f, "lists all console variables/commands/aliases containing the specified string in the name or description");
1567         Cmd_AddCommand(CMD_SHARED, "find", Cmd_Apropos_f, "lists all console variables/commands/aliases containing the specified string in the name or description");
1568
1569         Cmd_AddCommand(CMD_SHARED, "defer", Cmd_Defer_f, "execute a command in the future");
1570
1571         // DRESK - 5/14/06
1572         // Support Doom3-style Toggle Command
1573         Cmd_AddCommand(CMD_SHARED | CMD_CLIENT_FROM_SERVER, "toggle", Cmd_Toggle_f, "toggles a console variable's values (use for more info)");
1574 }
1575
1576 /*
1577 ============
1578 Cmd_Shutdown
1579 ============
1580 */
1581 void Cmd_Shutdown(void)
1582 {
1583         cmd_iter_t *cmd_iter;
1584         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
1585         {
1586                 cmd_state_t *cmd = cmd_iter->cmd;
1587
1588                 if (cmd->text_mutex)
1589                 {
1590                         // we usually have this locked when we get here from Host_Quit_f
1591                         Cbuf_Unlock(cmd);
1592                 }
1593
1594                 Mem_FreePool(&cmd->mempool);
1595         }
1596 }
1597
1598 /*
1599 ============
1600 Cmd_Argc
1601 ============
1602 */
1603 int             Cmd_Argc (cmd_state_t *cmd)
1604 {
1605         return cmd->argc;
1606 }
1607
1608 /*
1609 ============
1610 Cmd_Argv
1611 ============
1612 */
1613 const char *Cmd_Argv(cmd_state_t *cmd, int arg)
1614 {
1615         if (arg >= cmd->argc )
1616                 return cmd->null_string;
1617         return cmd->argv[arg];
1618 }
1619
1620 /*
1621 ============
1622 Cmd_Args
1623 ============
1624 */
1625 const char *Cmd_Args (cmd_state_t *cmd)
1626 {
1627         return cmd->args;
1628 }
1629
1630 /*
1631 ============
1632 Cmd_TokenizeString
1633
1634 Parses the given string into command line tokens.
1635 ============
1636 */
1637 // AK: This function should only be called from ExcuteString because the current design is a bit of an hack
1638 static void Cmd_TokenizeString (cmd_state_t *cmd, const char *text)
1639 {
1640         int l;
1641
1642         cmd->argc = 0;
1643         cmd->args = NULL;
1644
1645         while (1)
1646         {
1647                 // skip whitespace up to a /n
1648                 while (*text && ISWHITESPACE(*text) && *text != '\r' && *text != '\n')
1649                         text++;
1650
1651                 // line endings:
1652                 // UNIX: \n
1653                 // Mac: \r
1654                 // Windows: \r\n
1655                 if (*text == '\n' || *text == '\r')
1656                 {
1657                         // a newline separates commands in the buffer
1658                         if (*text == '\r' && text[1] == '\n')
1659                                 text++;
1660                         text++;
1661                         break;
1662                 }
1663
1664                 if (!*text)
1665                         return;
1666
1667                 if (cmd->argc == 1)
1668                         cmd->args = text;
1669
1670                 if (!COM_ParseToken_Console(&text))
1671                         return;
1672
1673                 if (cmd->argc < MAX_ARGS)
1674                 {
1675                         l = (int)strlen(com_token) + 1;
1676                         if (cmd->tokenizebufferpos + l > CMD_TOKENIZELENGTH)
1677                         {
1678                                 Con_Printf("Cmd_TokenizeString: ran out of %i character buffer space for command arguments\n", CMD_TOKENIZELENGTH);
1679                                 break;
1680                         }
1681                         memcpy (cmd->tokenizebuffer + cmd->tokenizebufferpos, com_token, l);
1682                         cmd->argv[cmd->argc] = cmd->tokenizebuffer + cmd->tokenizebufferpos;
1683                         cmd->tokenizebufferpos += l;
1684                         cmd->argc++;
1685                 }
1686         }
1687 }
1688
1689
1690 /*
1691 ============
1692 Cmd_AddCommand
1693 ============
1694 */
1695 void Cmd_AddCommand(int flags, const char *cmd_name, xcommand_t function, const char *description)
1696 {
1697         cmd_function_t *func;
1698         cmd_function_t *prev, *current;
1699         cmd_state_t *cmd;
1700         xcommand_t save = NULL;
1701         qboolean auto_add = false;
1702         int i;
1703
1704         for (i = 0; i < 3; i++)
1705         {
1706                 cmd = cmd_iter_all[i].cmd;
1707                 if ((flags & cmd->cmd_flags) || (flags & cmd->auto_flags))
1708                 {
1709                         if((flags & cmd->auto_flags) && cmd->auto_function)
1710                         {
1711                                 save = function;
1712                                 function = cmd->auto_function;
1713                                 auto_add = true;
1714                         }
1715
1716                         // fail if the command is a variable name
1717                         if (Cvar_FindVar(cmd->cvars, cmd_name, ~0))
1718                         {
1719                                 Con_Printf("Cmd_AddCommand: %s already defined as a var\n", cmd_name);
1720                                 return;
1721                         }
1722
1723                         if (function)
1724                         {
1725                                 // fail if the command already exists in this interpreter
1726                                 for (func = cmd->engine_functions; func; func = func->next)
1727                                 {
1728                                         if (!strcmp(cmd_name, func->name))
1729                                         {
1730                                                 if(func->autofunc && !auto_add)
1731                                                         break;
1732                                                 Con_Printf("Cmd_AddCommand: %s already defined\n", cmd_name);
1733                                                 goto next;
1734                                         }
1735                                 }
1736
1737                                 func = (cmd_function_t *)Mem_Alloc(cmd->mempool, sizeof(cmd_function_t));
1738                                 func->flags = flags;
1739                                 func->name = cmd_name;
1740                                 func->function = function;
1741                                 func->description = description;
1742                                 func->next = cmd->engine_functions;
1743                                 func->autofunc = auto_add;
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;
1772                                 func->description = description;
1773                                 func->csqcfunc = true; //[515]: csqc
1774                                 func->next = cmd->userdefined->csqc_functions;
1775                                 func->autofunc = false;
1776
1777                                 // insert it at the right alphanumeric position
1778                                 for (prev = NULL, current = cmd->userdefined->csqc_functions; current && strcmp(current->name, func->name) < 0; prev = current, current = current->next)
1779                                         ;
1780                                 if (prev) {
1781                                         prev->next = func;
1782                                 }
1783                                 else {
1784                                         cmd->userdefined->csqc_functions = func;
1785                                 }
1786                                 func->next = current;
1787                         }
1788                         if (save)
1789                                 function = save;
1790                 }
1791 next:
1792                 auto_add = false;
1793                 continue;
1794         }
1795 }
1796
1797 /*
1798 ============
1799 Cmd_Exists
1800 ============
1801 */
1802 qboolean Cmd_Exists (cmd_state_t *cmd, const char *cmd_name)
1803 {
1804         cmd_function_t  *func;
1805
1806         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1807                 if (!strcmp(cmd_name, func->name))
1808                         return true;
1809
1810         for (func=cmd->engine_functions ; func ; func=func->next)
1811                 if (!strcmp (cmd_name,func->name))
1812                         return true;
1813
1814         return false;
1815 }
1816
1817
1818 /*
1819 ============
1820 Cmd_CompleteCommand
1821 ============
1822 */
1823 const char *Cmd_CompleteCommand (cmd_state_t *cmd, const char *partial)
1824 {
1825         cmd_function_t *func;
1826         size_t len;
1827
1828         len = strlen(partial);
1829
1830         if (!len)
1831                 return NULL;
1832
1833 // check functions
1834         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1835                 if (!strncasecmp(partial, func->name, len))
1836                         return func->name;
1837
1838         for (func = cmd->engine_functions; func; func = func->next)
1839                 if (!strncasecmp(partial, func->name, len))
1840                         return func->name;
1841
1842         return NULL;
1843 }
1844
1845 /*
1846         Cmd_CompleteCountPossible
1847
1848         New function for tab-completion system
1849         Added by EvilTypeGuy
1850         Thanks to Fett erich@heintz.com
1851         Thanks to taniwha
1852
1853 */
1854 int Cmd_CompleteCountPossible (cmd_state_t *cmd, const char *partial)
1855 {
1856         cmd_function_t *func;
1857         size_t len;
1858         int h;
1859
1860         h = 0;
1861         len = strlen(partial);
1862
1863         if (!len)
1864                 return 0;
1865
1866         // Loop through the command list and count all partial matches
1867         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1868                 if (!strncasecmp(partial, func->name, len))
1869                         h++;
1870
1871         for (func = cmd->engine_functions; func; func = func->next)
1872                 if (!strncasecmp(partial, func->name, len))
1873                         h++;
1874
1875         return h;
1876 }
1877
1878 /*
1879         Cmd_CompleteBuildList
1880
1881         New function for tab-completion system
1882         Added by EvilTypeGuy
1883         Thanks to Fett erich@heintz.com
1884         Thanks to taniwha
1885
1886 */
1887 const char **Cmd_CompleteBuildList (cmd_state_t *cmd, const char *partial)
1888 {
1889         cmd_function_t *func;
1890         size_t len = 0;
1891         size_t bpos = 0;
1892         size_t sizeofbuf = (Cmd_CompleteCountPossible (cmd, partial) + 1) * sizeof (const char *);
1893         const char **buf;
1894
1895         len = strlen(partial);
1896         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
1897         // Loop through the functions lists and print all matches
1898         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1899                 if (!strncasecmp(partial, func->name, len))
1900                         buf[bpos++] = func->name;
1901         for (func = cmd->engine_functions; func; func = func->next)
1902                 if (!strncasecmp(partial, func->name, len))
1903                         buf[bpos++] = func->name;
1904
1905         buf[bpos] = NULL;
1906         return buf;
1907 }
1908
1909 // written by LadyHavoc
1910 void Cmd_CompleteCommandPrint (cmd_state_t *cmd, const char *partial)
1911 {
1912         cmd_function_t *func;
1913         size_t len = strlen(partial);
1914         // Loop through the command list and print all matches
1915         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1916                 if (!strncasecmp(partial, func->name, len))
1917                         Con_Printf("^2%s^7: %s\n", func->name, func->description);
1918         for (func = cmd->engine_functions; func; func = func->next)
1919                 if (!strncasecmp(partial, func->name, len))
1920                         Con_Printf("^2%s^7: %s\n", func->name, func->description);
1921 }
1922
1923 /*
1924         Cmd_CompleteAlias
1925
1926         New function for tab-completion system
1927         Added by EvilTypeGuy
1928         Thanks to Fett erich@heintz.com
1929         Thanks to taniwha
1930
1931 */
1932 const char *Cmd_CompleteAlias (cmd_state_t *cmd, const char *partial)
1933 {
1934         cmdalias_t *alias;
1935         size_t len;
1936
1937         len = strlen(partial);
1938
1939         if (!len)
1940                 return NULL;
1941
1942         // Check functions
1943         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1944                 if (!strncasecmp(partial, alias->name, len))
1945                         return alias->name;
1946
1947         return NULL;
1948 }
1949
1950 // written by LadyHavoc
1951 void Cmd_CompleteAliasPrint (cmd_state_t *cmd, const char *partial)
1952 {
1953         cmdalias_t *alias;
1954         size_t len = strlen(partial);
1955         // Loop through the alias list and print all matches
1956         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1957                 if (!strncasecmp(partial, alias->name, len))
1958                         Con_Printf("^5%s^7: %s", alias->name, alias->value);
1959 }
1960
1961
1962 /*
1963         Cmd_CompleteAliasCountPossible
1964
1965         New function for tab-completion system
1966         Added by EvilTypeGuy
1967         Thanks to Fett erich@heintz.com
1968         Thanks to taniwha
1969
1970 */
1971 int Cmd_CompleteAliasCountPossible (cmd_state_t *cmd, const char *partial)
1972 {
1973         cmdalias_t      *alias;
1974         size_t          len;
1975         int                     h;
1976
1977         h = 0;
1978
1979         len = strlen(partial);
1980
1981         if (!len)
1982                 return 0;
1983
1984         // Loop through the command list and count all partial matches
1985         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1986                 if (!strncasecmp(partial, alias->name, len))
1987                         h++;
1988
1989         return h;
1990 }
1991
1992 /*
1993         Cmd_CompleteAliasBuildList
1994
1995         New function for tab-completion system
1996         Added by EvilTypeGuy
1997         Thanks to Fett erich@heintz.com
1998         Thanks to taniwha
1999
2000 */
2001 const char **Cmd_CompleteAliasBuildList (cmd_state_t *cmd, const char *partial)
2002 {
2003         cmdalias_t *alias;
2004         size_t len = 0;
2005         size_t bpos = 0;
2006         size_t sizeofbuf = (Cmd_CompleteAliasCountPossible (cmd, partial) + 1) * sizeof (const char *);
2007         const char **buf;
2008
2009         len = strlen(partial);
2010         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
2011         // Loop through the alias list and print all matches
2012         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
2013                 if (!strncasecmp(partial, alias->name, len))
2014                         buf[bpos++] = alias->name;
2015
2016         buf[bpos] = NULL;
2017         return buf;
2018 }
2019
2020 // TODO: Make this more generic?
2021 void Cmd_ClearCSQCCommands (cmd_state_t *cmd)
2022 {
2023         cmd_function_t *func;
2024         cmd_function_t **next = &cmd->userdefined->csqc_functions;
2025
2026         while(*next)
2027         {
2028                 func = *next;
2029                 *next = func->next;
2030                 Z_Free(func);
2031         }
2032 }
2033
2034 extern cvar_t sv_cheats;
2035
2036 /*
2037 ============
2038 Cmd_ExecuteString
2039
2040 A complete command line has been parsed, so try to execute it
2041 FIXME: lookupnoadd the token to speed search?
2042 ============
2043 */
2044 void Cmd_ExecuteString (cmd_state_t *cmd, const char *text, cmd_source_t src, qboolean lockmutex)
2045 {
2046         int oldpos;
2047         cmd_function_t *func;
2048         cmdalias_t *a;
2049         if (lockmutex)
2050                 Cbuf_Lock(cmd);
2051         oldpos = cmd->tokenizebufferpos;
2052         cmd->source = src;
2053
2054         Cmd_TokenizeString (cmd, text);
2055
2056 // execute the command line
2057         if (!Cmd_Argc(cmd))
2058                 goto done; // no tokens
2059
2060 // check functions
2061         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
2062         {
2063                 if (!strcasecmp(cmd->argv[0], func->name))
2064                 {
2065                         if (func->csqcfunc && CL_VM_ConsoleCommand(text))       //[515]: csqc
2066                                 goto done;
2067                         break;
2068                 }
2069         }
2070
2071         for (func = cmd->engine_functions; func; func=func->next)
2072         {
2073                 if (!strcasecmp (cmd->argv[0], func->name))
2074                 {
2075                         switch (src)
2076                         {
2077                         case src_command:
2078                                 if (func->function)
2079                                         func->function(cmd);
2080                                 else
2081                                         Con_Printf("Command \"%s\" can not be executed\n", Cmd_Argv(cmd, 0));
2082                                 goto done;
2083                         case src_client:
2084                                 if (func->function)
2085                                 {
2086                                         if((func->flags & CMD_CHEAT) && !sv_cheats.integer)
2087                                                 SV_ClientPrintf("No cheats allowed. The server must have sv_cheats set to 1\n");
2088                                         else
2089                                                 func->function(cmd);
2090                                         goto done;
2091                                 }
2092                         }
2093                         break;
2094                 }
2095         }
2096
2097         // if it's a client command and no command was found, say so.
2098         if (cmd->source == src_client)
2099         {
2100                 Con_Printf("Client \"%s\" tried to execute \"%s\"\n", host_client->name, text);
2101                 goto done;
2102         }
2103
2104 // check alias
2105         for (a=cmd->userdefined->alias ; a ; a=a->next)
2106         {
2107                 if (!strcasecmp (cmd->argv[0], a->name))
2108                 {
2109                         Cmd_ExecuteAlias(cmd, a);
2110                         goto done;
2111                 }
2112         }
2113
2114 // check cvars
2115         if (!Cvar_Command(cmd) && host.framecount > 0)
2116                 Con_Printf("Unknown command \"%s\"\n", Cmd_Argv(cmd, 0));
2117 done:
2118         cmd->tokenizebufferpos = oldpos;
2119         if (lockmutex)
2120                 Cbuf_Unlock(cmd);
2121 }
2122
2123 /*
2124 ================
2125 Cmd_CheckParm
2126
2127 Returns the position (1 to argc-1) in the command's argument list
2128 where the given parameter apears, or 0 if not present
2129 ================
2130 */
2131
2132 int Cmd_CheckParm (cmd_state_t *cmd, const char *parm)
2133 {
2134         int i;
2135
2136         if (!parm)
2137         {
2138                 Con_Printf ("Cmd_CheckParm: NULL");
2139                 return 0;
2140         }
2141
2142         for (i = 1; i < Cmd_Argc (cmd); i++)
2143                 if (!strcasecmp (parm, Cmd_Argv(cmd, i)))
2144                         return i;
2145
2146         return 0;
2147 }
2148
2149
2150
2151 void Cmd_SaveInitState(void)
2152 {
2153         cmd_iter_t *cmd_iter;
2154         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
2155         {
2156                 cmd_state_t *cmd = cmd_iter->cmd;
2157                 cmd_function_t *f;
2158                 cmdalias_t *a;
2159                 for (f = cmd->userdefined->csqc_functions; f; f = f->next)
2160                         f->initstate = true;
2161                 for (f = cmd->engine_functions; f; f = f->next)
2162                         f->initstate = true;
2163                 for (a = cmd->userdefined->alias; a; a = a->next)
2164                 {
2165                         a->initstate = true;
2166                         a->initialvalue = Mem_strdup(zonemempool, a->value);
2167                 }
2168         }
2169         Cvar_SaveInitState(&cvars_all);
2170 }
2171
2172 void Cmd_RestoreInitState(void)
2173 {
2174         cmd_iter_t *cmd_iter;
2175         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
2176         {
2177                 cmd_state_t *cmd = cmd_iter->cmd;
2178                 cmd_function_t *f, **fp;
2179                 cmdalias_t *a, **ap;
2180                 for (fp = &cmd->userdefined->csqc_functions; (f = *fp);)
2181                 {
2182                         if (f->initstate)
2183                                 fp = &f->next;
2184                         else
2185                         {
2186                                 // destroy this command, it didn't exist at init
2187                                 Con_DPrintf("Cmd_RestoreInitState: Destroying command %s\n", f->name);
2188                                 *fp = f->next;
2189                                 Z_Free(f);
2190                         }
2191                 }
2192                 for (fp = &cmd->engine_functions; (f = *fp);)
2193                 {
2194                         if (f->initstate)
2195                                 fp = &f->next;
2196                         else
2197                         {
2198                                 // destroy this command, it didn't exist at init
2199                                 Con_DPrintf("Cmd_RestoreInitState: Destroying command %s\n", f->name);
2200                                 *fp = f->next;
2201                                 Z_Free(f);
2202                         }
2203                 }
2204                 for (ap = &cmd->userdefined->alias; (a = *ap);)
2205                 {
2206                         if (a->initstate)
2207                         {
2208                                 // restore this alias, it existed at init
2209                                 if (strcmp(a->value ? a->value : "", a->initialvalue ? a->initialvalue : ""))
2210                                 {
2211                                         Con_DPrintf("Cmd_RestoreInitState: Restoring alias %s\n", a->name);
2212                                         if (a->value)
2213                                                 Z_Free(a->value);
2214                                         a->value = Mem_strdup(zonemempool, a->initialvalue);
2215                                 }
2216                                 ap = &a->next;
2217                         }
2218                         else
2219                         {
2220                                 // free this alias, it didn't exist at init...
2221                                 Con_DPrintf("Cmd_RestoreInitState: Destroying alias %s\n", a->name);
2222                                 *ap = a->next;
2223                                 if (a->value)
2224                                         Z_Free(a->value);
2225                                 Z_Free(a);
2226                         }
2227                 }
2228         }
2229         Cvar_RestoreInitState(&cvars_all);
2230 }