cmd.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // cmd.c -- Quake script command processing module
  21
  22 #include "quakedef.h"
  23 #include "thread.h"
  24
  25 cmd_state_t cmd_client;
  26 cmd_state_t cmd_server;
  27 cmd_state_t cmd_serverfromclient;
  28
  29 cmd_userdefined_t cmd_userdefined_all;
  30 cmd_userdefined_t cmd_userdefined_null;
  31
  32 typedef struct cmd_iter_s {
  33         cmd_state_t *cmd;
  34 }
  35 cmd_iter_t;
  36
  37 static cmd_iter_t cmd_iter_all[] = {
  38         {&cmd_client},
  39         {&cmd_server},
  40         {&cmd_serverfromclient},
  41         {NULL},
  42 };
  43
  44
  45 // we only run the +whatever commandline arguments once
  46 qboolean host_stuffcmdsrun = false;
  47
  48 //=============================================================================
  49
  50 void Cbuf_Lock(cmd_state_t *cmd)
  51 {
  52         Thread_AtomicLock(&cmd->text_lock);
  53 }
  54
  55 void Cbuf_Unlock(cmd_state_t *cmd)
  56 {
  57         Thread_AtomicUnlock(&cmd->text_lock);
  58 }
  59
  60
  61 /*
  62 ============
  63 Cmd_Wait_f
  64
  65 Causes execution of the remainder of the command buffer to be delayed until
  66 next frame.  This allows commands like:
  67 bind g "impulse 5 ; +attack ; wait ; -attack ; impulse 2"
  68 ============
  69 */
  70 static void Cmd_Wait_f (cmd_state_t *cmd)
  71 {
  72         cmd->wait = true;
  73 }
  74
  75 /*
  76 ============
  77 Cmd_Defer_f
  78
  79 Cause a command to be executed after a delay.
  80 ============
  81 */
  82 static void Cmd_Defer_f (cmd_state_t *cmd)
  83 {
  84         if(Cmd_Argc(cmd) == 1)
  85         {
  86                 cmddeferred_t *next = cmd->deferred_list;
  87                 if(!next)
  88                         Con_Printf("No commands are pending.\n");
  89                 while(next)
  90                 {
  91                         Con_Printf("-> In %9.2f: %s\n", next->delay, next->value);
  92                         next = next->next;
  93                 }
  94         } else if(Cmd_Argc(cmd) == 2 && !strcasecmp("clear", Cmd_Argv(cmd, 1)))
  95         {
  96                 while(cmd->deferred_list)
  97                 {
  98                         cmddeferred_t *defcmd = cmd->deferred_list;
  99                         cmd->deferred_list = defcmd->next;
 100                         Mem_Free(defcmd->value);
 101                         Mem_Free(defcmd);
 102                 }
 103         } else if(Cmd_Argc(cmd) == 3)
 104         {
 105                 const char *value = Cmd_Argv(cmd, 2);
 106                 cmddeferred_t *defcmd = (cmddeferred_t*)Mem_Alloc(tempmempool, sizeof(*defcmd));
 107                 size_t len = strlen(value);
 108
 109                 defcmd->delay = atof(Cmd_Argv(cmd, 1));
 110                 defcmd->value = (char*)Mem_Alloc(tempmempool, len+1);
 111                 memcpy(defcmd->value, value, len+1);
 112                 defcmd->next = NULL;
 113
 114                 if(cmd->deferred_list)
 115                 {
 116                         cmddeferred_t *next = cmd->deferred_list;
 117                         while(next->next)
 118                                 next = next->next;
 119                         next->next = defcmd;
 120                 } else
 121                         cmd->deferred_list = defcmd;
 122                 /* Stupid me... this changes the order... so commands with the same delay go blub :S
 123                   defcmd->next = cmd_deferred_list;
 124                   cmd_deferred_list = defcmd;*/
 125         } else {
 126                 Con_Printf("usage: defer <seconds> <command>\n"
 127                            "       defer clear\n");
 128                 return;
 129         }
 130 }
 131
 132 /*
 133 ============
 134 Cmd_Centerprint_f
 135
 136 Print something to the center of the screen using SCR_Centerprint
 137 ============
 138 */
 139 static void Cmd_Centerprint_f (cmd_state_t *cmd)
 140 {
 141         char msg[MAX_INPUTLINE];
 142         unsigned int i, c, p;
 143         c = Cmd_Argc(cmd);
 144         if(c >= 2)
 145         {
 146                 strlcpy(msg, Cmd_Argv(cmd,1), sizeof(msg));
 147                 for(i = 2; i < c; ++i)
 148                 {
 149                         strlcat(msg, " ", sizeof(msg));
 150                         strlcat(msg, Cmd_Argv(cmd, i), sizeof(msg));
 151                 }
 152                 c = (unsigned int)strlen(msg);
 153                 for(p = 0, i = 0; i < c; ++i)
 154                 {
 155                         if(msg[i] == '\\')
 156                         {
 157                                 if(msg[i+1] == 'n')
 158                                         msg[p++] = '\n';
 159                                 else if(msg[i+1] == '\\')
 160                                         msg[p++] = '\\';
 161                                 else {
 162                                         msg[p++] = '\\';
 163                                         msg[p++] = msg[i+1];
 164                                 }
 165                                 ++i;
 166                         } else {
 167                                 msg[p++] = msg[i];
 168                         }
 169                 }
 170                 msg[p] = '\0';
 171                 SCR_CenterPrint(msg);
 172         }
 173 }
 174
 175 /*
 176 =============================================================================
 177
 178                                                 COMMAND BUFFER
 179
 180 =============================================================================
 181 */
 182
 183 /*
 184 ============
 185 Cbuf_AddText
 186
 187 Adds command text at the end of the buffer
 188 ============
 189 */
 190 void Cbuf_AddText (cmd_state_t *cmd, const char *text)
 191 {
 192         int             l;
 193
 194         l = (int)strlen(text);
 195
 196         Cbuf_Lock(cmd);
 197         if (cmd->text.maxsize - cmd->text.cursize <= l)
 198                 Con_Print("Cbuf_AddText: overflow\n");
 199         else
 200                 SZ_Write(&cmd->text, (const unsigned char *)text, l);
 201         Cbuf_Unlock(cmd);
 202 }
 203
 204
 205 /*
 206 ============
 207 Cbuf_InsertText
 208
 209 Adds command text immediately after the current command
 210 Adds a \n to the text
 211 FIXME: actually change the command buffer to do less copying
 212 ============
 213 */
 214 void Cbuf_InsertText (cmd_state_t *cmd, const char *text)
 215 {
 216         size_t l = strlen(text);
 217         Cbuf_Lock(cmd);
 218         // we need to memmove the existing text and stuff this in before it...
 219         if (cmd->text.cursize + l >= (size_t)cmd->text.maxsize)
 220                 Con_Print("Cbuf_InsertText: overflow\n");
 221         else
 222         {
 223                 // we don't have a SZ_Prepend, so...
 224                 memmove(cmd->text.data + l, cmd->text.data, cmd->text.cursize);
 225                 cmd->text.cursize += (int)l;
 226                 memcpy(cmd->text.data, text, l);
 227         }
 228         Cbuf_Unlock(cmd);
 229 }
 230
 231 /*
 232 ============
 233 Cbuf_Execute_Deferred --blub
 234 ============
 235 */
 236 static void Cbuf_Execute_Deferred (cmd_state_t *cmd)
 237 {
 238         cmddeferred_t *defcmd, *prev;
 239         double eat;
 240         if (realtime - cmd->deferred_oldrealtime < 0 || realtime - cmd->deferred_oldrealtime > 1800) cmd->deferred_oldrealtime = realtime;
 241         eat = realtime - cmd->deferred_oldrealtime;
 242         if (eat < (1.0 / 120.0))
 243                 return;
 244         cmd->deferred_oldrealtime = realtime;
 245         prev = NULL;
 246         defcmd = cmd->deferred_list;
 247         while(defcmd)
 248         {
 249                 defcmd->delay -= eat;
 250                 if(defcmd->delay <= 0)
 251                 {
 252                         Cbuf_AddText(cmd, defcmd->value);
 253                         Cbuf_AddText(cmd, ";\n");
 254                         Mem_Free(defcmd->value);
 255
 256                         if(prev) {
 257                                 prev->next = defcmd->next;
 258                                 Mem_Free(defcmd);
 259                                 defcmd = prev->next;
 260                         } else {
 261                                 cmd->deferred_list = defcmd->next;
 262                                 Mem_Free(defcmd);
 263                                 defcmd = cmd->deferred_list;
 264                         }
 265                         continue;
 266                 }
 267                 prev = defcmd;
 268                 defcmd = defcmd->next;
 269         }
 270 }
 271
 272 /*
 273 ============
 274 Cbuf_Execute
 275 ============
 276 */
 277 static qboolean Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias );
 278 void Cbuf_Execute (cmd_state_t *cmd)
 279 {
 280         int i;
 281         char *text;
 282         char line[MAX_INPUTLINE];
 283         char preprocessed[MAX_INPUTLINE];
 284         char *firstchar;
 285         qboolean quotes;
 286         char *comment;
 287
 288         // LadyHavoc: making sure the tokenizebuffer doesn't get filled up by repeated crashes
 289         cmd->tokenizebufferpos = 0;
 290
 291         while (cmd->text.cursize)
 292         {
 293 // find a \n or ; line break
 294                 text = (char *)cmd->text.data;
 295
 296                 quotes = false;
 297                 comment = NULL;
 298                 for (i=0 ; i < cmd->text.cursize ; i++)
 299                 {
 300                         if(!comment)
 301                         {
 302                                 if (text[i] == '"')
 303                                         quotes = !quotes;
 304
 305                                 if(quotes)
 306                                 {
 307                                         // make sure i doesn't get > cursize which causes a negative
 308                                         // size in memmove, which is fatal --blub
 309                                         if (i < (cmd->text.cursize-1) && (text[i] == '\\' && (text[i+1] == '"' || text[i+1] == '\\')))
 310                                                 i++;
 311                                 }
 312                                 else
 313                                 {
 314                                         if(text[i] == '/' && text[i + 1] == '/' && (i == 0 || ISWHITESPACE(text[i-1])))
 315                                                 comment = &text[i];
 316                                         if(text[i] == ';')
 317                                                 break;  // don't break if inside a quoted string or comment
 318                                 }
 319                         }
 320
 321                         if (text[i] == '\r' || text[i] == '\n')
 322                                 break;
 323                 }
 324
 325                 // better than CRASHING on overlong input lines that may SOMEHOW enter the buffer
 326                 if(i >= MAX_INPUTLINE)
 327                 {
 328                         Con_Warnf("Warning: console input buffer had an overlong line. Ignored.\n");
 329                         line[0] = 0;
 330                 }
 331                 else
 332                 {
 333                         memcpy (line, text, comment ? (comment - text) : i);
 334                         line[comment ? (comment - text) : i] = 0;
 335                 }
 336
 337 // delete the text from the command buffer and move remaining commands down
 338 // this is necessary because commands (exec, alias) can insert data at the
 339 // beginning of the text buffer
 340
 341                 if (i == cmd->text.cursize)
 342                         cmd->text.cursize = 0;
 343                 else
 344                 {
 345                         i++;
 346                         cmd->text.cursize -= i;
 347                         memmove (cmd->text.data, text+i, cmd->text.cursize);
 348                 }
 349
 350 // execute the command line
 351                 firstchar = line;
 352                 while(*firstchar && ISWHITESPACE(*firstchar))
 353                         ++firstchar;
 354                 if(
 355                         (strncmp(firstchar, "alias", 5) || !ISWHITESPACE(firstchar[5]))
 356                         &&
 357                         (strncmp(firstchar, "bind", 4) || !ISWHITESPACE(firstchar[4]))
 358                         &&
 359                         (strncmp(firstchar, "in_bind", 7) || !ISWHITESPACE(firstchar[7]))
 360                 )
 361                 {
 362                         if(Cmd_PreprocessString( cmd, line, preprocessed, sizeof(preprocessed), NULL ))
 363                                 Cmd_ExecuteString (cmd, preprocessed, src_command, false);
 364                 }
 365                 else
 366                 {
 367                         Cmd_ExecuteString (cmd, line, src_command, false);
 368                 }
 369
 370                 if (cmd->wait)
 371                 {       // skip out while text still remains in buffer, leaving it
 372                         // for next frame
 373                         cmd->wait = false;
 374                         break;
 375                 }
 376         }
 377 }
 378
 379 void Cbuf_Frame(cmd_state_t *cmd)
 380 {
 381         Cbuf_Execute_Deferred(cmd);
 382         if (cmd->text.cursize)
 383         {
 384                 SV_LockThreadMutex();
 385                 Cbuf_Execute(cmd);
 386                 SV_UnlockThreadMutex();
 387         }
 388 }
 389
 390 /*
 391 ==============================================================================
 392
 393                                                 SCRIPT COMMANDS
 394
 395 ==============================================================================
 396 */
 397
 398 extern qboolean host_init;
 399
 400 /*
 401 ===============
 402 Cmd_StuffCmds_f
 403
 404 Adds command line parameters as script statements
 405 Commands lead with a +, and continue until a - or another +
 406 quake +prog jctest.qp +cmd amlev1
 407 quake -nosound +cmd amlev1
 408 ===============
 409 */
 410 static void Cmd_StuffCmds_f (cmd_state_t *cmd)
 411 {
 412         int             i, j, l;
 413         // this is for all commandline options combined (and is bounds checked)
 414         char    build[MAX_INPUTLINE];
 415
 416         // come back later so we don't crash
 417         if(host_init)
 418                 return;
 419
 420         if (Cmd_Argc (cmd) != 1)
 421         {
 422                 Con_Print("stuffcmds : execute command line parameters\n");
 423                 return;
 424         }
 425
 426         // no reason to run the commandline arguments twice
 427         if (host_stuffcmdsrun)
 428                 return;
 429
 430         host_stuffcmdsrun = true;
 431         build[0] = 0;
 432         l = 0;
 433         for (i = 0;i < com_argc;i++)
 434         {
 435                 if (com_argv[i] && com_argv[i][0] == '+' && (com_argv[i][1] < '0' || com_argv[i][1] > '9') && l + strlen(com_argv[i]) - 1 <= sizeof(build) - 1)
 436                 {
 437                         j = 1;
 438                         while (com_argv[i][j])
 439                                 build[l++] = com_argv[i][j++];
 440                         i++;
 441                         for (;i < com_argc;i++)
 442                         {
 443                                 if (!com_argv[i])
 444                                         continue;
 445                                 if ((com_argv[i][0] == '+' || com_argv[i][0] == '-') && (com_argv[i][1] < '0' || com_argv[i][1] > '9'))
 446                                         break;
 447                                 if (l + strlen(com_argv[i]) + 4 > sizeof(build) - 1)
 448                                         break;
 449                                 build[l++] = ' ';
 450                                 if (strchr(com_argv[i], ' '))
 451                                         build[l++] = '\"';
 452                                 for (j = 0;com_argv[i][j];j++)
 453                                         build[l++] = com_argv[i][j];
 454                                 if (strchr(com_argv[i], ' '))
 455                                         build[l++] = '\"';
 456                         }
 457                         build[l++] = '\n';
 458                         i--;
 459                 }
 460         }
 461         // now terminate the combined string and prepend it to the command buffer
 462         // we already reserved space for the terminator
 463         build[l++] = 0;
 464         Cbuf_InsertText (cmd, build);
 465 }
 466
 467 static void Cmd_Exec(cmd_state_t *cmd, const char *filename)
 468 {
 469         char *f;
 470         size_t filenameLen = strlen(filename);
 471         qboolean isdefaultcfg =
 472                 !strcmp(filename, "default.cfg") ||
 473                 (filenameLen >= 12 && !strcmp(filename + filenameLen - 12, "/default.cfg"));
 474
 475         if (!strcmp(filename, "config.cfg"))
 476         {
 477                 filename = CONFIGFILENAME;
 478                 if (COM_CheckParm("-noconfig"))
 479                         return; // don't execute config.cfg
 480         }
 481
 482         f = (char *)FS_LoadFile (filename, tempmempool, false, NULL);
 483         if (!f)
 484         {
 485                 Con_Printf("couldn't exec %s\n",filename);
 486                 return;
 487         }
 488         Con_Printf("execing %s\n",filename);
 489
 490         // if executing default.cfg for the first time, lock the cvar defaults
 491         // it may seem backwards to insert this text BEFORE the default.cfg
 492         // but Cbuf_InsertText inserts before, so this actually ends up after it.
 493         if (isdefaultcfg)
 494                 Cbuf_InsertText(cmd, "\ncvar_lockdefaults\n");
 495
 496         // insert newline after the text to make sure the last line is terminated (some text editors omit the trailing newline)
 497         // (note: insertion order here is backwards from execution order, so this adds it after the text, by calling it before...)
 498         Cbuf_InsertText (cmd, "\n");
 499         Cbuf_InsertText (cmd, f);
 500         Mem_Free(f);
 501
 502         if (isdefaultcfg)
 503         {
 504                 // special defaults for specific games go here, these execute before default.cfg
 505                 // Nehahra pushable crates malfunction in some levels if this is on
 506                 // Nehahra NPC AI is confused by blowupfallenzombies
 507                 switch(gamemode)
 508                 {
 509                 case GAME_NORMAL:
 510                         Cbuf_InsertText(cmd, "\n"
 511 "sv_gameplayfix_blowupfallenzombies 0\n"
 512 "sv_gameplayfix_findradiusdistancetobox 0\n"
 513 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 514 "sv_gameplayfix_slidemoveprojectiles 0\n"
 515 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 516 "sv_gameplayfix_setmodelrealbox 0\n"
 517 "sv_gameplayfix_droptofloorstartsolid 0\n"
 518 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 519 "sv_gameplayfix_noairborncorpse 0\n"
 520 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 521 "sv_gameplayfix_easierwaterjump 0\n"
 522 "sv_gameplayfix_delayprojectiles 0\n"
 523 "sv_gameplayfix_multiplethinksperframe 0\n"
 524 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 525 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 526 "sv_gameplayfix_swiminbmodels 0\n"
 527 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 528 "sys_ticrate 0.01388889\n"
 529 "r_shadow_gloss 1\n"
 530 "r_shadow_bumpscale_basetexture 0\n"
 531 "csqc_polygons_defaultmaterial_nocullface 0\n"
 532                                 );
 533                         break;
 534                 case GAME_NEHAHRA:
 535                         Cbuf_InsertText(cmd, "\n"
 536 "sv_gameplayfix_blowupfallenzombies 0\n"
 537 "sv_gameplayfix_findradiusdistancetobox 0\n"
 538 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 539 "sv_gameplayfix_slidemoveprojectiles 0\n"
 540 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 541 "sv_gameplayfix_setmodelrealbox 0\n"
 542 "sv_gameplayfix_droptofloorstartsolid 0\n"
 543 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 544 "sv_gameplayfix_noairborncorpse 0\n"
 545 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 546 "sv_gameplayfix_easierwaterjump 0\n"
 547 "sv_gameplayfix_delayprojectiles 0\n"
 548 "sv_gameplayfix_multiplethinksperframe 0\n"
 549 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 550 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 551 "sv_gameplayfix_swiminbmodels 0\n"
 552 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 553 "sys_ticrate 0.01388889\n"
 554 "r_shadow_gloss 1\n"
 555 "r_shadow_bumpscale_basetexture 0\n"
 556 "csqc_polygons_defaultmaterial_nocullface 0\n"
 557                                 );
 558                         break;
 559                 // hipnotic mission pack has issues in their 'friendly monster' ai, which seem to attempt to attack themselves for some reason when findradius() returns non-solid entities.
 560                 // hipnotic mission pack has issues with bobbing water entities 'jittering' between different heights on alternate frames at the default 0.0138889 ticrate, 0.02 avoids this issue
 561                 // hipnotic mission pack has issues in their proximity mine sticking code, which causes them to bounce off.
 562                 case GAME_HIPNOTIC:
 563                 case GAME_QUOTH:
 564                         Cbuf_InsertText(cmd, "\n"
 565 "sv_gameplayfix_blowupfallenzombies 0\n"
 566 "sv_gameplayfix_findradiusdistancetobox 0\n"
 567 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 568 "sv_gameplayfix_slidemoveprojectiles 0\n"
 569 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 570 "sv_gameplayfix_setmodelrealbox 0\n"
 571 "sv_gameplayfix_droptofloorstartsolid 0\n"
 572 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 573 "sv_gameplayfix_noairborncorpse 0\n"
 574 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 575 "sv_gameplayfix_easierwaterjump 0\n"
 576 "sv_gameplayfix_delayprojectiles 0\n"
 577 "sv_gameplayfix_multiplethinksperframe 0\n"
 578 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 579 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 580 "sv_gameplayfix_swiminbmodels 0\n"
 581 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 582 "sys_ticrate 0.02\n"
 583 "r_shadow_gloss 1\n"
 584 "r_shadow_bumpscale_basetexture 0\n"
 585 "csqc_polygons_defaultmaterial_nocullface 0\n"
 586                                 );
 587                         break;
 588                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
 589                 case GAME_ROGUE:
 590                         Cbuf_InsertText(cmd, "\n"
 591 "sv_gameplayfix_blowupfallenzombies 0\n"
 592 "sv_gameplayfix_findradiusdistancetobox 0\n"
 593 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 594 "sv_gameplayfix_slidemoveprojectiles 0\n"
 595 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 596 "sv_gameplayfix_setmodelrealbox 0\n"
 597 "sv_gameplayfix_droptofloorstartsolid 0\n"
 598 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 599 "sv_gameplayfix_noairborncorpse 0\n"
 600 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 601 "sv_gameplayfix_easierwaterjump 0\n"
 602 "sv_gameplayfix_delayprojectiles 0\n"
 603 "sv_gameplayfix_multiplethinksperframe 0\n"
 604 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 605 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 606 "sv_gameplayfix_swiminbmodels 0\n"
 607 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 608 "sys_ticrate 0.01388889\n"
 609 "r_shadow_gloss 1\n"
 610 "r_shadow_bumpscale_basetexture 0\n"
 611 "csqc_polygons_defaultmaterial_nocullface 0\n"
 612                                 );
 613                         break;
 614                 case GAME_TENEBRAE:
 615                         Cbuf_InsertText(cmd, "\n"
 616 "sv_gameplayfix_blowupfallenzombies 0\n"
 617 "sv_gameplayfix_findradiusdistancetobox 0\n"
 618 "sv_gameplayfix_grenadebouncedownslopes 0\n"
 619 "sv_gameplayfix_slidemoveprojectiles 0\n"
 620 "sv_gameplayfix_upwardvelocityclearsongroundflag 0\n"
 621 "sv_gameplayfix_setmodelrealbox 0\n"
 622 "sv_gameplayfix_droptofloorstartsolid 0\n"
 623 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 0\n"
 624 "sv_gameplayfix_noairborncorpse 0\n"
 625 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 0\n"
 626 "sv_gameplayfix_easierwaterjump 0\n"
 627 "sv_gameplayfix_delayprojectiles 0\n"
 628 "sv_gameplayfix_multiplethinksperframe 0\n"
 629 "sv_gameplayfix_fixedcheckwatertransition 0\n"
 630 "sv_gameplayfix_q1bsptracelinereportstexture 0\n"
 631 "sv_gameplayfix_swiminbmodels 0\n"
 632 "sv_gameplayfix_downtracesupportsongroundflag 0\n"
 633 "sys_ticrate 0.01388889\n"
 634 "r_shadow_gloss 2\n"
 635 "r_shadow_bumpscale_basetexture 4\n"
 636 "csqc_polygons_defaultmaterial_nocullface 0\n"
 637                                 );
 638                         break;
 639                 case GAME_NEXUIZ:
 640                         Cbuf_InsertText(cmd, "\n"
 641 "sv_gameplayfix_blowupfallenzombies 1\n"
 642 "sv_gameplayfix_findradiusdistancetobox 1\n"
 643 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 644 "sv_gameplayfix_slidemoveprojectiles 1\n"
 645 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 646 "sv_gameplayfix_setmodelrealbox 1\n"
 647 "sv_gameplayfix_droptofloorstartsolid 1\n"
 648 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 649 "sv_gameplayfix_noairborncorpse 1\n"
 650 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 651 "sv_gameplayfix_easierwaterjump 1\n"
 652 "sv_gameplayfix_delayprojectiles 1\n"
 653 "sv_gameplayfix_multiplethinksperframe 1\n"
 654 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 655 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 656 "sv_gameplayfix_swiminbmodels 1\n"
 657 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 658 "sys_ticrate 0.01388889\n"
 659 "sv_gameplayfix_q2airaccelerate 1\n"
 660 "sv_gameplayfix_stepmultipletimes 1\n"
 661 "csqc_polygons_defaultmaterial_nocullface 1\n"
 662                                 );
 663                         break;
 664                 case GAME_XONOTIC:
 665                 case GAME_VORETOURNAMENT:
 666                         // 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
 667                         Cbuf_InsertText(cmd, "\n"
 668 "csqc_polygons_defaultmaterial_nocullface 1\n"
 669                                 );
 670                         break;
 671                 // Steel Storm: Burning Retribution csqc misinterprets CSQC_InputEvent if type is a value other than 0 or 1
 672                 case GAME_STEELSTORM:
 673                         Cbuf_InsertText(cmd, "\n"
 674 "sv_gameplayfix_blowupfallenzombies 1\n"
 675 "sv_gameplayfix_findradiusdistancetobox 1\n"
 676 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 677 "sv_gameplayfix_slidemoveprojectiles 1\n"
 678 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 679 "sv_gameplayfix_setmodelrealbox 1\n"
 680 "sv_gameplayfix_droptofloorstartsolid 1\n"
 681 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 682 "sv_gameplayfix_noairborncorpse 1\n"
 683 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 684 "sv_gameplayfix_easierwaterjump 1\n"
 685 "sv_gameplayfix_delayprojectiles 1\n"
 686 "sv_gameplayfix_multiplethinksperframe 1\n"
 687 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 688 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 689 "sv_gameplayfix_swiminbmodels 1\n"
 690 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 691 "sys_ticrate 0.01388889\n"
 692 "cl_csqc_generatemousemoveevents 0\n"
 693 "csqc_polygons_defaultmaterial_nocullface 1\n"
 694                                 );
 695                         break;
 696                 default:
 697                         Cbuf_InsertText(cmd, "\n"
 698 "sv_gameplayfix_blowupfallenzombies 1\n"
 699 "sv_gameplayfix_findradiusdistancetobox 1\n"
 700 "sv_gameplayfix_grenadebouncedownslopes 1\n"
 701 "sv_gameplayfix_slidemoveprojectiles 1\n"
 702 "sv_gameplayfix_upwardvelocityclearsongroundflag 1\n"
 703 "sv_gameplayfix_setmodelrealbox 1\n"
 704 "sv_gameplayfix_droptofloorstartsolid 1\n"
 705 "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect 1\n"
 706 "sv_gameplayfix_noairborncorpse 1\n"
 707 "sv_gameplayfix_noairborncorpse_allowsuspendeditems 1\n"
 708 "sv_gameplayfix_easierwaterjump 1\n"
 709 "sv_gameplayfix_delayprojectiles 1\n"
 710 "sv_gameplayfix_multiplethinksperframe 1\n"
 711 "sv_gameplayfix_fixedcheckwatertransition 1\n"
 712 "sv_gameplayfix_q1bsptracelinereportstexture 1\n"
 713 "sv_gameplayfix_swiminbmodels 1\n"
 714 "sv_gameplayfix_downtracesupportsongroundflag 1\n"
 715 "sys_ticrate 0.01388889\n"
 716 "csqc_polygons_defaultmaterial_nocullface 0\n"
 717                                 );
 718                         break;
 719                 }
 720         }
 721 }
 722
 723 /*
 724 ===============
 725 Cmd_Exec_f
 726 ===============
 727 */
 728 static void Cmd_Exec_f (cmd_state_t *cmd)
 729 {
 730         fssearch_t *s;
 731         int i;
 732
 733         if (Cmd_Argc(cmd) != 2)
 734         {
 735                 Con_Print("exec <filename> : execute a script file\n");
 736                 return;
 737         }
 738
 739         s = FS_Search(Cmd_Argv(cmd, 1), true, true);
 740         if(!s || !s->numfilenames)
 741         {
 742                 Con_Printf("couldn't exec %s\n",Cmd_Argv(cmd, 1));
 743                 return;
 744         }
 745
 746         for(i = 0; i < s->numfilenames; ++i)
 747                 Cmd_Exec(cmd, s->filenames[i]);
 748
 749         FS_FreeSearch(s);
 750 }
 751
 752
 753 /*
 754 ===============
 755 Cmd_Echo_f
 756
 757 Just prints the rest of the line to the console
 758 ===============
 759 */
 760 static void Cmd_Echo_f (cmd_state_t *cmd)
 761 {
 762         int             i;
 763
 764         for (i=1 ; i<Cmd_Argc(cmd) ; i++)
 765                 Con_Printf("%s ",Cmd_Argv(cmd, i));
 766         Con_Print("\n");
 767 }
 768
 769 // DRESK - 5/14/06
 770 // Support Doom3-style Toggle Console Command
 771 /*
 772 ===============
 773 Cmd_Toggle_f
 774
 775 Toggles a specified console variable amongst the values specified (default is 0 and 1)
 776 ===============
 777 */
 778 static void Cmd_Toggle_f(cmd_state_t *cmd)
 779 {
 780         // Acquire Number of Arguments
 781         int nNumArgs = Cmd_Argc(cmd);
 782
 783         if(nNumArgs == 1)
 784                 // No Arguments Specified; Print Usage
 785                 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");
 786         else
 787         { // Correct Arguments Specified
 788                 // Acquire Potential CVar
 789                 cvar_t* cvCVar = Cvar_FindVar(cmd->cvars, Cmd_Argv(cmd, 1), cmd->cvars_flagsmask);
 790
 791                 if(cvCVar != NULL)
 792                 { // Valid CVar
 793                         if(nNumArgs == 2)
 794                         { // Default Usage
 795                                 if(cvCVar->integer)
 796                                         Cvar_SetValueQuick(cvCVar, 0);
 797                                 else
 798                                         Cvar_SetValueQuick(cvCVar, 1);
 799                         }
 800                         else
 801                         if(nNumArgs == 3)
 802                         { // 0 and Specified Usage
 803                                 if(cvCVar->integer == atoi(Cmd_Argv(cmd, 2) ) )
 804                                         // CVar is Specified Value; // Reset to 0
 805                                         Cvar_SetValueQuick(cvCVar, 0);
 806                                 else
 807                                 if(cvCVar->integer == 0)
 808                                         // CVar is 0; Specify Value
 809                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 810                                 else
 811                                         // CVar does not match; Reset to 0
 812                                         Cvar_SetValueQuick(cvCVar, 0);
 813                         }
 814                         else
 815                         { // Variable Values Specified
 816                                 int nCnt;
 817                                 int bFound = 0;
 818
 819                                 for(nCnt = 2; nCnt < nNumArgs; nCnt++)
 820                                 { // Cycle through Values
 821                                         if( strcmp(cvCVar->string, Cmd_Argv(cmd, nCnt) ) == 0)
 822                                         { // Current Value Located; Increment to Next
 823                                                 if( (nCnt + 1) == nNumArgs)
 824                                                         // Max Value Reached; Reset
 825                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 826                                                 else
 827                                                         // Next Value
 828                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, nCnt + 1) );
 829
 830                                                 // End Loop
 831                                                 nCnt = nNumArgs;
 832                                                 // Assign Found
 833                                                 bFound = 1;
 834                                         }
 835                                 }
 836                                 if(!bFound)
 837                                         // Value not Found; Reset to Original
 838                                         Cvar_SetQuick(cvCVar, Cmd_Argv(cmd, 2) );
 839                         }
 840
 841                 }
 842                 else
 843                 { // Invalid CVar
 844                         Con_Printf("ERROR : CVar '%s' not found\n", Cmd_Argv(cmd, 1) );
 845                 }
 846         }
 847 }
 848
 849 /*
 850 ===============
 851 Cmd_Alias_f
 852
 853 Creates a new command that executes a command string (possibly ; seperated)
 854 ===============
 855 */
 856 static void Cmd_Alias_f (cmd_state_t *cmd)
 857 {
 858         cmdalias_t      *a;
 859         char            line[MAX_INPUTLINE];
 860         int                     i, c;
 861         const char              *s;
 862         size_t          alloclen;
 863
 864         if (Cmd_Argc(cmd) == 1)
 865         {
 866                 Con_Print("Current alias commands:\n");
 867                 for (a = cmd->userdefined->alias ; a ; a=a->next)
 868                         Con_Printf("%s : %s", a->name, a->value);
 869                 return;
 870         }
 871
 872         s = Cmd_Argv(cmd, 1);
 873         if (strlen(s) >= MAX_ALIAS_NAME)
 874         {
 875                 Con_Print("Alias name is too long\n");
 876                 return;
 877         }
 878
 879         // if the alias already exists, reuse it
 880         for (a = cmd->userdefined->alias ; a ; a=a->next)
 881         {
 882                 if (!strcmp(s, a->name))
 883                 {
 884                         Z_Free (a->value);
 885                         break;
 886                 }
 887         }
 888
 889         if (!a)
 890         {
 891                 cmdalias_t *prev, *current;
 892
 893                 a = (cmdalias_t *)Z_Malloc (sizeof(cmdalias_t));
 894                 strlcpy (a->name, s, sizeof (a->name));
 895                 // insert it at the right alphanumeric position
 896                 for( prev = NULL, current = cmd->userdefined->alias ; current && strcmp( current->name, a->name ) < 0 ; prev = current, current = current->next )
 897                         ;
 898                 if( prev ) {
 899                         prev->next = a;
 900                 } else {
 901                         cmd->userdefined->alias = a;
 902                 }
 903                 a->next = current;
 904         }
 905
 906
 907 // copy the rest of the command line
 908         line[0] = 0;            // start out with a null string
 909         c = Cmd_Argc(cmd);
 910         for (i=2 ; i < c ; i++)
 911         {
 912                 if (i != 2)
 913                         strlcat (line, " ", sizeof (line));
 914                 strlcat (line, Cmd_Argv(cmd, i), sizeof (line));
 915         }
 916         strlcat (line, "\n", sizeof (line));
 917
 918         alloclen = strlen (line) + 1;
 919         if(alloclen >= 2)
 920                 line[alloclen - 2] = '\n'; // to make sure a newline is appended even if too long
 921         a->value = (char *)Z_Malloc (alloclen);
 922         memcpy (a->value, line, alloclen);
 923 }
 924
 925 /*
 926 ===============
 927 Cmd_UnAlias_f
 928
 929 Remove existing aliases.
 930 ===============
 931 */
 932 static void Cmd_UnAlias_f (cmd_state_t *cmd)
 933 {
 934         cmdalias_t      *a, *p;
 935         int i;
 936         const char *s;
 937
 938         if(Cmd_Argc(cmd) == 1)
 939         {
 940                 Con_Print("unalias: Usage: unalias alias1 [alias2 ...]\n");
 941                 return;
 942         }
 943
 944         for(i = 1; i < Cmd_Argc(cmd); ++i)
 945         {
 946                 s = Cmd_Argv(cmd, i);
 947                 p = NULL;
 948                 for(a = cmd->userdefined->alias; a; p = a, a = a->next)
 949                 {
 950                         if(!strcmp(s, a->name))
 951                         {
 952                                 if (a->initstate) // we can not remove init aliases
 953                                         continue;
 954                                 if(a == cmd->userdefined->alias)
 955                                         cmd->userdefined->alias = a->next;
 956                                 if(p)
 957                                         p->next = a->next;
 958                                 Z_Free(a->value);
 959                                 Z_Free(a);
 960                                 break;
 961                         }
 962                 }
 963                 if(!a)
 964                         Con_Printf("unalias: %s alias not found\n", s);
 965         }
 966 }
 967
 968 /*
 969 =============================================================================
 970
 971                                         COMMAND EXECUTION
 972
 973 =============================================================================
 974 */
 975
 976 static const char *Cmd_GetDirectCvarValue(cmd_state_t *cmd, const char *varname, cmdalias_t *alias, qboolean *is_multiple)
 977 {
 978         cvar_t *cvar;
 979         long argno;
 980         char *endptr;
 981         static char vabuf[1024]; // cmd_mutex
 982
 983         if(is_multiple)
 984                 *is_multiple = false;
 985
 986         if(!varname || !*varname)
 987                 return NULL;
 988
 989         if(alias)
 990         {
 991                 if(!strcmp(varname, "*"))
 992                 {
 993                         if(is_multiple)
 994                                 *is_multiple = true;
 995                         return Cmd_Args(cmd);
 996                 }
 997                 else if(!strcmp(varname, "#"))
 998                 {
 999                         return va(vabuf, sizeof(vabuf), "%d", Cmd_Argc(cmd));
1000                 }
1001                 else if(varname[strlen(varname) - 1] == '-')
1002                 {
1003                         argno = strtol(varname, &endptr, 10);
1004                         if(endptr == varname + strlen(varname) - 1)
1005                         {
1006                                 // whole string is a number, apart from the -
1007                                 const char *p = Cmd_Args(cmd);
1008                                 for(; argno > 1; --argno)
1009                                         if(!COM_ParseToken_Console(&p))
1010                                                 break;
1011                                 if(p)
1012                                 {
1013                                         if(is_multiple)
1014                                                 *is_multiple = true;
1015
1016                                         // kill pre-argument whitespace
1017                                         for (;*p && ISWHITESPACE(*p);p++)
1018                                                 ;
1019
1020                                         return p;
1021                                 }
1022                         }
1023                 }
1024                 else
1025                 {
1026                         argno = strtol(varname, &endptr, 10);
1027                         if(*endptr == 0)
1028                         {
1029                                 // whole string is a number
1030                                 // NOTE: we already made sure we don't have an empty cvar name!
1031                                 if(argno >= 0 && argno < Cmd_Argc(cmd))
1032                                         return Cmd_Argv(cmd, argno);
1033                         }
1034                 }
1035         }
1036
1037         if((cvar = Cvar_FindVar(cmd->cvars, varname, cmd->cvars_flagsmask)) && !(cvar->flags & CVAR_PRIVATE))
1038                 return cvar->string;
1039
1040         return NULL;
1041 }
1042
1043 qboolean Cmd_QuoteString(char *out, size_t outlen, const char *in, const char *quoteset, qboolean putquotes)
1044 {
1045         qboolean quote_quot = !!strchr(quoteset, '"');
1046         qboolean quote_backslash = !!strchr(quoteset, '\\');
1047         qboolean quote_dollar = !!strchr(quoteset, '$');
1048
1049         if(putquotes)
1050         {
1051                 if(outlen <= 2)
1052                 {
1053                         *out++ = 0;
1054                         return false;
1055                 }
1056                 *out++ = '"'; --outlen;
1057                 --outlen;
1058         }
1059
1060         while(*in)
1061         {
1062                 if(*in == '"' && quote_quot)
1063                 {
1064                         if(outlen <= 2)
1065                                 goto fail;
1066                         *out++ = '\\'; --outlen;
1067                         *out++ = '"'; --outlen;
1068                 }
1069                 else if(*in == '\\' && quote_backslash)
1070                 {
1071                         if(outlen <= 2)
1072                                 goto fail;
1073                         *out++ = '\\'; --outlen;
1074                         *out++ = '\\'; --outlen;
1075                 }
1076                 else if(*in == '$' && quote_dollar)
1077                 {
1078                         if(outlen <= 2)
1079                                 goto fail;
1080                         *out++ = '$'; --outlen;
1081                         *out++ = '$'; --outlen;
1082                 }
1083                 else
1084                 {
1085                         if(outlen <= 1)
1086                                 goto fail;
1087                         *out++ = *in; --outlen;
1088                 }
1089                 ++in;
1090         }
1091         if(putquotes)
1092                 *out++ = '"';
1093         *out++ = 0;
1094         return true;
1095 fail:
1096         if(putquotes)
1097                 *out++ = '"';
1098         *out++ = 0;
1099         return false;
1100 }
1101
1102 static const char *Cmd_GetCvarValue(cmd_state_t *cmd, const char *var, size_t varlen, cmdalias_t *alias)
1103 {
1104         static char varname[MAX_INPUTLINE]; // cmd_mutex
1105         static char varval[MAX_INPUTLINE]; // cmd_mutex
1106         const char *varstr = NULL;
1107         char *varfunc;
1108         qboolean required = false;
1109         qboolean optional = false;
1110         static char asis[] = "asis"; // just to suppress const char warnings
1111
1112         if(varlen >= MAX_INPUTLINE)
1113                 varlen = MAX_INPUTLINE - 1;
1114         memcpy(varname, var, varlen);
1115         varname[varlen] = 0;
1116         varfunc = strchr(varname, ' ');
1117
1118         if(varfunc)
1119         {
1120                 *varfunc = 0;
1121                 ++varfunc;
1122         }
1123
1124         if(*var == 0)
1125         {
1126                 // empty cvar name?
1127                 if(alias)
1128                         Con_Warnf("Warning: Could not expand $ in alias %s\n", alias->name);
1129                 else
1130                         Con_Warnf("Warning: Could not expand $\n");
1131                 return "$";
1132         }
1133
1134         if(varfunc)
1135         {
1136                 char *p;
1137                 // ? means optional
1138                 while((p = strchr(varfunc, '?')))
1139                 {
1140                         optional = true;
1141                         memmove(p, p+1, strlen(p)); // with final NUL
1142                 }
1143                 // ! means required
1144                 while((p = strchr(varfunc, '!')))
1145                 {
1146                         required = true;
1147                         memmove(p, p+1, strlen(p)); // with final NUL
1148                 }
1149                 // kill spaces
1150                 while((p = strchr(varfunc, ' ')))
1151                 {
1152                         memmove(p, p+1, strlen(p)); // with final NUL
1153                 }
1154                 // if no function is left, NULL it
1155                 if(!*varfunc)
1156                         varfunc = NULL;
1157         }
1158
1159         if(varname[0] == '$')
1160                 varstr = Cmd_GetDirectCvarValue(cmd, Cmd_GetDirectCvarValue(cmd, varname + 1, alias, NULL), alias, NULL);
1161         else
1162         {
1163                 qboolean is_multiple = false;
1164                 // Exception: $* and $n- don't use the quoted form by default
1165                 varstr = Cmd_GetDirectCvarValue(cmd, varname, alias, &is_multiple);
1166                 if(is_multiple)
1167                         if(!varfunc)
1168                                 varfunc = asis;
1169         }
1170
1171         if(!varstr)
1172         {
1173                 if(required)
1174                 {
1175                         if(alias)
1176                                 Con_Errorf("Error: Could not expand $%s in alias %s\n", varname, alias->name);
1177                         else
1178                                 Con_Errorf("Error: Could not expand $%s\n", varname);
1179                         return NULL;
1180                 }
1181                 else if(optional)
1182                 {
1183                         return "";
1184                 }
1185                 else
1186                 {
1187                         if(alias)
1188                                 Con_Warnf("Warning: Could not expand $%s in alias %s\n", varname, alias->name);
1189                         else
1190                                 Con_Warnf("Warning: Could not expand $%s\n", varname);
1191                         dpsnprintf(varval, sizeof(varval), "$%s", varname);
1192                         return varval;
1193                 }
1194         }
1195
1196         if(!varfunc || !strcmp(varfunc, "q")) // note: quoted form is default, use "asis" to override!
1197         {
1198                 // quote it so it can be used inside double quotes
1199                 // we just need to replace " by \", and of course, double backslashes
1200                 Cmd_QuoteString(varval, sizeof(varval), varstr, "\"\\", false);
1201                 return varval;
1202         }
1203         else if(!strcmp(varfunc, "asis"))
1204         {
1205                 return varstr;
1206         }
1207         else
1208                 Con_Printf("Unknown variable function %s\n", varfunc);
1209
1210         return varstr;
1211 }
1212
1213 /*
1214 Cmd_PreprocessString
1215
1216 Preprocesses strings and replaces $*, $param#, $cvar accordingly. Also strips comments.
1217 */
1218 static qboolean Cmd_PreprocessString(cmd_state_t *cmd, const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias ) {
1219         const char *in;
1220         size_t eat, varlen;
1221         unsigned outlen;
1222         const char *val;
1223
1224         // don't crash if there's no room in the outtext buffer
1225         if( maxoutlen == 0 ) {
1226                 return false;
1227         }
1228         maxoutlen--; // because of \0
1229
1230         in = intext;
1231         outlen = 0;
1232
1233         while( *in && outlen < maxoutlen ) {
1234                 if( *in == '$' ) {
1235                         // this is some kind of expansion, see what comes after the $
1236                         in++;
1237
1238                         // The console does the following preprocessing:
1239                         //
1240                         // - $$ is transformed to a single dollar sign.
1241                         // - $var or ${var} are expanded to the contents of the named cvar,
1242                         //   with quotation marks and backslashes quoted so it can safely
1243                         //   be used inside quotation marks (and it should always be used
1244                         //   that way)
1245                         // - ${var asis} inserts the cvar value as is, without doing this
1246                         //   quoting
1247                         // - ${var ?} silently expands to the empty string if
1248                         //   $var does not exist
1249                         // - ${var !} fails expansion and executes nothing if
1250                         //   $var does not exist
1251                         // - prefix the cvar name with a dollar sign to do indirection;
1252                         //   for example, if $x has the value timelimit, ${$x} will return
1253                         //   the value of $timelimit
1254                         // - when expanding an alias, the special variable name $* refers
1255                         //   to all alias parameters, and a number refers to that numbered
1256                         //   alias parameter, where the name of the alias is $0, the first
1257                         //   parameter is $1 and so on; as a special case, $* inserts all
1258                         //   parameters, without extra quoting, so one can use $* to just
1259                         //   pass all parameters around. All parameters starting from $n
1260                         //   can be referred to as $n- (so $* is equivalent to $1-).
1261                         // - ${* q} and ${n- q} force quoting anyway
1262                         //
1263                         // Note: when expanding an alias, cvar expansion is done in the SAME step
1264                         // as alias expansion so that alias parameters or cvar values containing
1265                         // dollar signs have no unwanted bad side effects. However, this needs to
1266                         // be accounted for when writing complex aliases. For example,
1267                         //   alias foo "set x NEW; echo $x"
1268                         // actually expands to
1269                         //   "set x NEW; echo OLD"
1270                         // and will print OLD! To work around this, use a second alias:
1271                         //   alias foo "set x NEW; foo2"
1272                         //   alias foo2 "echo $x"
1273                         //
1274                         // Also note: lines starting with alias are exempt from cvar expansion.
1275                         // If you want cvar expansion, write "alias" instead:
1276                         //
1277                         //   set x 1
1278                         //   alias foo "echo $x"
1279                         //   "alias" bar "echo $x"
1280                         //   set x 2
1281                         //
1282                         // foo will print 2, because the variable $x will be expanded when the alias
1283                         // gets expanded. bar will print 1, because the variable $x was expanded
1284                         // at definition time. foo can be equivalently defined as
1285                         //
1286                         //   "alias" foo "echo $$x"
1287                         //
1288                         // because at definition time, $$ will get replaced to a single $.
1289
1290                         if( *in == '$' ) {
1291                                 val = "$";
1292                                 eat = 1;
1293                         } else if(*in == '{') {
1294                                 varlen = strcspn(in + 1, "}");
1295                                 if(in[varlen + 1] == '}')
1296                                 {
1297                                         val = Cmd_GetCvarValue(cmd, in + 1, varlen, alias);
1298                                         if(!val)
1299                                                 return false;
1300                                         eat = varlen + 2;
1301                                 }
1302                                 else
1303                                 {
1304                                         // ran out of data?
1305                                         val = NULL;
1306                                         eat = varlen + 1;
1307                                 }
1308                         } else {
1309                                 varlen = strspn(in, "#*0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-");
1310                                 val = Cmd_GetCvarValue(cmd, in, varlen, alias);
1311                                 if(!val)
1312                                         return false;
1313                                 eat = varlen;
1314                         }
1315                         if(val)
1316                         {
1317                                 // insert the cvar value
1318                                 while(*val && outlen < maxoutlen)
1319                                         outtext[outlen++] = *val++;
1320                                 in += eat;
1321                         }
1322                         else
1323                         {
1324                                 // copy the unexpanded text
1325                                 outtext[outlen++] = '$';
1326                                 while(eat && outlen < maxoutlen)
1327                                 {
1328                                         outtext[outlen++] = *in++;
1329                                         --eat;
1330                                 }
1331                         }
1332                 }
1333                 else
1334                         outtext[outlen++] = *in++;
1335         }
1336         outtext[outlen] = 0;
1337         return true;
1338 }
1339
1340 /*
1341 ============
1342 Cmd_ExecuteAlias
1343
1344 Called for aliases and fills in the alias into the cbuffer
1345 ============
1346 */
1347 static void Cmd_ExecuteAlias (cmd_state_t *cmd, cmdalias_t *alias)
1348 {
1349         static char buffer[ MAX_INPUTLINE ]; // cmd_mutex
1350         static char buffer2[ MAX_INPUTLINE ]; // cmd_mutex
1351         qboolean ret = Cmd_PreprocessString( cmd, alias->value, buffer, sizeof(buffer) - 2, alias );
1352         if(!ret)
1353                 return;
1354         // insert at start of command buffer, so that aliases execute in order
1355         // (fixes bug introduced by Black on 20050705)
1356
1357         // Note: Cbuf_PreprocessString will be called on this string AGAIN! So we
1358         // have to make sure that no second variable expansion takes place, otherwise
1359         // alias parameters containing dollar signs can have bad effects.
1360         Cmd_QuoteString(buffer2, sizeof(buffer2), buffer, "$", false);
1361         Cbuf_InsertText(cmd, buffer2);
1362 }
1363
1364 /*
1365 ========
1366 Cmd_List
1367
1368         CmdList Added by EvilTypeGuy eviltypeguy@qeradiant.com
1369         Thanks to Matthias "Maddes" Buecher, http://www.inside3d.com/qip/
1370
1371 ========
1372 */
1373 static void Cmd_List_f (cmd_state_t *cmd)
1374 {
1375         cmd_function_t *func;
1376         const char *partial;
1377         size_t len;
1378         int count;
1379         qboolean ispattern;
1380
1381         if (Cmd_Argc(cmd) > 1)
1382         {
1383                 partial = Cmd_Argv(cmd, 1);
1384                 len = strlen(partial);
1385                 ispattern = (strchr(partial, '*') || strchr(partial, '?'));
1386         }
1387         else
1388         {
1389                 partial = NULL;
1390                 len = 0;
1391                 ispattern = false;
1392         }
1393
1394         count = 0;
1395         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1396         {
1397                 if (partial && (ispattern ? !matchpattern_with_separator(func->name, partial, false, "", false) : strncmp(partial, func->name, len)))
1398                         continue;
1399                 Con_Printf("%s : %s\n", func->name, func->description);
1400                 count++;
1401         }
1402         for (func = cmd->engine_functions; func; func = func->next)
1403         {
1404                 if (partial && (ispattern ? !matchpattern_with_separator(func->name, partial, false, "", false) : strncmp(partial, func->name, len)))
1405                         continue;
1406                 Con_Printf("%s : %s\n", func->name, func->description);
1407                 count++;
1408         }
1409
1410         if (len)
1411         {
1412                 if(ispattern)
1413                         Con_Printf("%i Command%s matching \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1414                 else
1415                         Con_Printf("%i Command%s beginning with \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1416         }
1417         else
1418                 Con_Printf("%i Command%s\n\n", count, (count > 1) ? "s" : "");
1419 }
1420
1421 static void Cmd_Apropos_f(cmd_state_t *cmd)
1422 {
1423         cmd_function_t *func;
1424         cvar_t *cvar;
1425         cmdalias_t *alias;
1426         const char *partial;
1427         int count;
1428         qboolean ispattern;
1429         char vabuf[1024];
1430
1431         if (Cmd_Argc(cmd) > 1)
1432                 partial = Cmd_Args(cmd);
1433         else
1434         {
1435                 Con_Printf("usage: apropos <string>\n");
1436                 return;
1437         }
1438
1439         ispattern = partial && (strchr(partial, '*') || strchr(partial, '?'));
1440         if(!ispattern)
1441                 partial = va(vabuf, sizeof(vabuf), "*%s*", partial);
1442
1443         count = 0;
1444         for (cvar = cmd->cvars->vars; cvar; cvar = cvar->next)
1445         {
1446                 if (matchpattern_with_separator(cvar->name, partial, true, "", false) ||
1447                     matchpattern_with_separator(cvar->description, partial, true, "", false))
1448                 {
1449                         Con_Printf ("cvar ");
1450                         Cvar_PrintHelp(cvar, cvar->name, true);
1451                         count++;
1452                 }
1453                 for (int i = 0; i < cvar->aliasindex; i++)
1454                 {
1455                         if (matchpattern_with_separator(cvar->aliases[i], partial, true, "", false))
1456                         {
1457                                 Con_Printf ("cvar ");
1458                                 Cvar_PrintHelp(cvar, cvar->aliases[i], true);
1459                                 count++;
1460                         }
1461                 }
1462         }
1463         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1464         {
1465                 if (!matchpattern_with_separator(func->name, partial, true, "", false))
1466                         if (!matchpattern_with_separator(func->description, partial, true, "", false))
1467                                 continue;
1468                 Con_Printf("command ^2%s^7: %s\n", func->name, func->description);
1469                 count++;
1470         }
1471         for (func = cmd->engine_functions; func; func = func->next)
1472         {
1473                 if (!matchpattern_with_separator(func->name, partial, true, "", false))
1474                 if (!matchpattern_with_separator(func->description, partial, true, "", false))
1475                         continue;
1476                 Con_Printf("command ^2%s^7: %s\n", func->name, func->description);
1477                 count++;
1478         }
1479         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1480         {
1481                 // procede here a bit differently as an alias value always got a final \n
1482                 if (!matchpattern_with_separator(alias->name, partial, true, "", false))
1483                 if (!matchpattern_with_separator(alias->value, partial, true, "\n", false)) // when \n is as separator wildcards don't match it
1484                         continue;
1485                 Con_Printf("alias ^5%s^7: %s", alias->name, alias->value); // do not print an extra \n
1486                 count++;
1487         }
1488         Con_Printf("%i result%s\n\n", count, (count > 1) ? "s" : "");
1489 }
1490
1491 /*
1492 ============
1493 Cmd_Init
1494 ============
1495 */
1496 void Cmd_Init(void)
1497 {
1498         cmd_iter_t *cmd_iter;
1499         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
1500         {
1501                 cmd_state_t *cmd = cmd_iter->cmd;
1502                 cmd->mempool = Mem_AllocPool("commands", 0, NULL);
1503                 // space for commands and script files
1504                 cmd->text.data = cmd->text_buf;
1505                 cmd->text.maxsize = sizeof(cmd->text_buf);
1506                 cmd->text.cursize = 0;
1507                 cmd->null_string = "";
1508         }
1509         // client console can see server cvars because the user may start a server
1510         cmd_client.cvars = &cvars_all;
1511         cmd_client.cvars_flagsmask = CVAR_CLIENT | CVAR_SERVER;
1512         cmd_client.userdefined = &cmd_userdefined_all;
1513         // dedicated server console can only see server cvars, there is no client
1514         cmd_server.cvars = &cvars_all;
1515         cmd_server.cvars_flagsmask = CVAR_SERVER;
1516         cmd_server.userdefined = &cmd_userdefined_all;
1517         // server commands received from clients have no reason to access cvars, cvar expansion seems perilous.
1518         cmd_serverfromclient.cvars = &cvars_null;
1519         cmd_serverfromclient.cvars_flagsmask = 0;
1520         cmd_serverfromclient.userdefined = &cmd_userdefined_null;
1521 }
1522
1523 void Cmd_Init_Commands(qboolean dedicated_server)
1524 {
1525 //
1526 // register our commands
1527 //
1528         // client-only commands
1529         Cmd_AddCommand(CMD_CLIENT | CMD_CLIENT_FROM_SERVER, "cmd", Cmd_ForwardToServer_f, "send a console commandline to the server (used by some mods)");
1530         Cmd_AddCommand(CMD_SHARED, "wait", Cmd_Wait_f, "make script execution wait for next rendered frame");
1531         Cmd_AddCommand(CMD_CLIENT, "cprint", Cmd_Centerprint_f, "print something at the screen center");
1532
1533         // maintenance commands used for upkeep of cvars and saved configs
1534         Cmd_AddCommand(CMD_SHARED, "stuffcmds", Cmd_StuffCmds_f, "execute commandline parameters (must be present in quake.rc script)");
1535         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");
1536         Cmd_AddCommand(CMD_SHARED, "cvar_resettodefaults_all", Cvar_ResetToDefaults_All_f, "sets all cvars to their locked default values");
1537         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)");
1538         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)");
1539
1540         // general console commands used in multiple environments
1541         Cmd_AddCommand(CMD_SHARED, "exec", Cmd_Exec_f, "execute a script file");
1542         Cmd_AddCommand(CMD_SHARED, "echo",Cmd_Echo_f, "print a message to the console (useful in scripts)");
1543         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");
1544         Cmd_AddCommand(CMD_SHARED, "unalias",Cmd_UnAlias_f, "remove an alias");
1545         Cmd_AddCommand(CMD_SHARED, "set", Cvar_Set_f, "create or change the value of a console variable");
1546         Cmd_AddCommand(CMD_SHARED, "seta", Cvar_SetA_f, "create or change the value of a console variable that will be saved to config.cfg");
1547         Cmd_AddCommand(CMD_SHARED, "unset", Cvar_Del_f, "delete a cvar (does not work for static ones like _cl_name, or read-only ones)");
1548
1549 #ifdef FILLALLCVARSWITHRUBBISH
1550         Cmd_AddCommand(CMD_SHARED, "fillallcvarswithrubbish", Cvar_FillAll_f, "fill all cvars with a specified number of characters to provoke buffer overruns");
1551 #endif /* FILLALLCVARSWITHRUBBISH */
1552
1553         // 2000-01-09 CmdList, CvarList commands By Matthias "Maddes" Buecher
1554         // Added/Modified by EvilTypeGuy eviltypeguy@qeradiant.com
1555         Cmd_AddCommand(CMD_SHARED, "cmdlist", Cmd_List_f, "lists all console commands beginning with the specified prefix or matching the specified wildcard pattern");
1556         Cmd_AddCommand(CMD_SHARED, "cvarlist", Cvar_List_f, "lists all console variables beginning with the specified prefix or matching the specified wildcard pattern");
1557         Cmd_AddCommand(CMD_SHARED, "apropos", Cmd_Apropos_f, "lists all console variables/commands/aliases containing the specified string in the name or description");
1558
1559         Cmd_AddCommand(CMD_SHARED, "defer", Cmd_Defer_f, "execute a command in the future");
1560
1561         // DRESK - 5/14/06
1562         // Support Doom3-style Toggle Command
1563         Cmd_AddCommand(CMD_SHARED | CMD_CLIENT_FROM_SERVER, "toggle", Cmd_Toggle_f, "toggles a console variable's values (use for more info)");
1564 }
1565
1566 /*
1567 ============
1568 Cmd_Shutdown
1569 ============
1570 */
1571 void Cmd_Shutdown(void)
1572 {
1573         cmd_iter_t *cmd_iter;
1574         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
1575         {
1576                 cmd_state_t *cmd = cmd_iter->cmd;
1577
1578                 if (cmd->text_lock)
1579                 {
1580                         // we usually have this locked when we get here from Host_Quit_f
1581                         Cbuf_Unlock(cmd);
1582                 }
1583
1584                 Mem_FreePool(&cmd->mempool);
1585         }
1586 }
1587
1588 /*
1589 ============
1590 Cmd_Argc
1591 ============
1592 */
1593 int             Cmd_Argc (cmd_state_t *cmd)
1594 {
1595         return cmd->argc;
1596 }
1597
1598 /*
1599 ============
1600 Cmd_Argv
1601 ============
1602 */
1603 const char *Cmd_Argv(cmd_state_t *cmd, int arg)
1604 {
1605         if (arg >= cmd->argc )
1606                 return cmd->null_string;
1607         return cmd->argv[arg];
1608 }
1609
1610 /*
1611 ============
1612 Cmd_Args
1613 ============
1614 */
1615 const char *Cmd_Args (cmd_state_t *cmd)
1616 {
1617         return cmd->args;
1618 }
1619
1620
1621 /*
1622 ============
1623 Cmd_TokenizeString
1624
1625 Parses the given string into command line tokens.
1626 ============
1627 */
1628 // AK: This function should only be called from ExcuteString because the current design is a bit of an hack
1629 static void Cmd_TokenizeString (cmd_state_t *cmd, const char *text)
1630 {
1631         int l;
1632
1633         cmd->argc = 0;
1634         cmd->args = NULL;
1635
1636         while (1)
1637         {
1638                 // skip whitespace up to a /n
1639                 while (*text && ISWHITESPACE(*text) && *text != '\r' && *text != '\n')
1640                         text++;
1641
1642                 // line endings:
1643                 // UNIX: \n
1644                 // Mac: \r
1645                 // Windows: \r\n
1646                 if (*text == '\n' || *text == '\r')
1647                 {
1648                         // a newline separates commands in the buffer
1649                         if (*text == '\r' && text[1] == '\n')
1650                                 text++;
1651                         text++;
1652                         break;
1653                 }
1654
1655                 if (!*text)
1656                         return;
1657
1658                 if (cmd->argc == 1)
1659                         cmd->args = text;
1660
1661                 if (!COM_ParseToken_Console(&text))
1662                         return;
1663
1664                 if (cmd->argc < MAX_ARGS)
1665                 {
1666                         l = (int)strlen(com_token) + 1;
1667                         if (cmd->tokenizebufferpos + l > CMD_TOKENIZELENGTH)
1668                         {
1669                                 Con_Printf("Cmd_TokenizeString: ran out of %i character buffer space for command arguments\n", CMD_TOKENIZELENGTH);
1670                                 break;
1671                         }
1672                         memcpy (cmd->tokenizebuffer + cmd->tokenizebufferpos, com_token, l);
1673                         cmd->argv[cmd->argc] = cmd->tokenizebuffer + cmd->tokenizebufferpos;
1674                         cmd->tokenizebufferpos += l;
1675                         cmd->argc++;
1676                 }
1677         }
1678 }
1679
1680
1681 /*
1682 ============
1683 Cmd_AddCommand
1684 ============
1685 */
1686 void Cmd_AddCommand(int flags, const char *cmd_name, xcommand_t function, const char *description)
1687 {
1688         cmd_function_t *func;
1689         cmd_function_t *prev, *current;
1690         cmd_state_t *cmd;
1691         xcommand_t function_actual;
1692         int i;
1693
1694         for (i = 1; i < (1<<8); i *= 2)
1695         {
1696                 function_actual = function;
1697                 if ((i == CMD_CLIENT) && (flags & i))
1698                 {
1699                         cmd = &cmd_client;
1700                         if (flags & 8)
1701                                 function_actual = Cmd_ForwardToServer_f;
1702                 }
1703                 else if ((i == CMD_SERVER) && (flags & i))
1704                         cmd = &cmd_server;
1705                 else if ((i == 8) && (flags & i)) // CMD_SERVER_FROM_CLIENT
1706                         cmd = &cmd_serverfromclient;
1707                 else
1708                         continue;
1709
1710         // fail if the command is a variable name
1711                 if (Cvar_FindVar(cmd->cvars, cmd_name, ~0))
1712                 {
1713                         Con_Printf("Cmd_AddCommand: %s already defined as a var\n", cmd_name);
1714                         return;
1715                 }
1716
1717                 if (function_actual)
1718                 {
1719                         // fail if the command already exists in this interpreter
1720                         for (func = cmd->engine_functions; func; func = func->next)
1721                         {
1722                                 if (!strcmp(cmd_name, func->name))
1723                                 {
1724                                         // Allow overriding forward to server
1725                                         if(func->function == Cmd_ForwardToServer_f && (func->flags & 8))
1726                                                 break;
1727                                         else
1728                                         {
1729                                                 Con_Printf("Cmd_AddCommand: %s already defined\n", cmd_name);
1730                                                 goto nested_continue;
1731                                         }
1732                                 }
1733                         }
1734
1735                         func = (cmd_function_t *)Mem_Alloc(cmd->mempool, sizeof(cmd_function_t));
1736                         func->flags = flags;
1737                         func->name = cmd_name;
1738                         func->function = function_actual;
1739                         func->description = description;
1740                         func->next = cmd->engine_functions;
1741
1742                         // insert it at the right alphanumeric position
1743                         for (prev = NULL, current = cmd->engine_functions; current && strcmp(current->name, func->name) < 0; prev = current, current = current->next)
1744                                 ;
1745                         if (prev) {
1746                                 prev->next = func;
1747                         }
1748                         else {
1749                                 cmd->engine_functions = func;
1750                         }
1751                         func->next = current;
1752                 }
1753                 else
1754                 {
1755                         // mark csqcfunc if the function already exists in the csqc_functions list
1756                         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1757                         {
1758                                 if (!strcmp(cmd_name, func->name))
1759                                 {
1760                                         func->csqcfunc = true; //[515]: csqc
1761                                         continue;
1762                                 }
1763                         }
1764
1765
1766                         func = (cmd_function_t *)Mem_Alloc(cmd->mempool, sizeof(cmd_function_t));
1767                         func->name = cmd_name;
1768                         func->function = function_actual;
1769                         func->description = description;
1770                         func->csqcfunc = true; //[515]: csqc
1771                         func->next = cmd->userdefined->csqc_functions;
1772
1773                         // insert it at the right alphanumeric position
1774                         for (prev = NULL, current = cmd->userdefined->csqc_functions; current && strcmp(current->name, func->name) < 0; prev = current, current = current->next)
1775                                 ;
1776                         if (prev) {
1777                                 prev->next = func;
1778                         }
1779                         else {
1780                                 cmd->userdefined->csqc_functions = func;
1781                         }
1782                         func->next = current;
1783                 }
1784 nested_continue:
1785                 continue;
1786         }
1787 }
1788
1789 /*
1790 ============
1791 Cmd_Exists
1792 ============
1793 */
1794 qboolean Cmd_Exists (cmd_state_t *cmd, const char *cmd_name)
1795 {
1796         cmd_function_t  *func;
1797
1798         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1799                 if (!strcmp(cmd_name, func->name))
1800                         return true;
1801
1802         for (func=cmd->engine_functions ; func ; func=func->next)
1803                 if (!strcmp (cmd_name,func->name))
1804                         return true;
1805
1806         return false;
1807 }
1808
1809
1810 /*
1811 ============
1812 Cmd_CompleteCommand
1813 ============
1814 */
1815 const char *Cmd_CompleteCommand (cmd_state_t *cmd, const char *partial)
1816 {
1817         cmd_function_t *func;
1818         size_t len;
1819
1820         len = strlen(partial);
1821
1822         if (!len)
1823                 return NULL;
1824
1825 // check functions
1826         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1827                 if (!strncasecmp(partial, func->name, len))
1828                         return func->name;
1829
1830         for (func = cmd->engine_functions; func; func = func->next)
1831                 if (!strncasecmp(partial, func->name, len))
1832                         return func->name;
1833
1834         return NULL;
1835 }
1836
1837 /*
1838         Cmd_CompleteCountPossible
1839
1840         New function for tab-completion system
1841         Added by EvilTypeGuy
1842         Thanks to Fett erich@heintz.com
1843         Thanks to taniwha
1844
1845 */
1846 int Cmd_CompleteCountPossible (cmd_state_t *cmd, const char *partial)
1847 {
1848         cmd_function_t *func;
1849         size_t len;
1850         int h;
1851
1852         h = 0;
1853         len = strlen(partial);
1854
1855         if (!len)
1856                 return 0;
1857
1858         // Loop through the command list and count all partial matches
1859         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1860                 if (!strncasecmp(partial, func->name, len))
1861                         h++;
1862
1863         for (func = cmd->engine_functions; func; func = func->next)
1864                 if (!strncasecmp(partial, func->name, len))
1865                         h++;
1866
1867         return h;
1868 }
1869
1870 /*
1871         Cmd_CompleteBuildList
1872
1873         New function for tab-completion system
1874         Added by EvilTypeGuy
1875         Thanks to Fett erich@heintz.com
1876         Thanks to taniwha
1877
1878 */
1879 const char **Cmd_CompleteBuildList (cmd_state_t *cmd, const char *partial)
1880 {
1881         cmd_function_t *func;
1882         size_t len = 0;
1883         size_t bpos = 0;
1884         size_t sizeofbuf = (Cmd_CompleteCountPossible (cmd, partial) + 1) * sizeof (const char *);
1885         const char **buf;
1886
1887         len = strlen(partial);
1888         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
1889         // Loop through the functions lists and print all matches
1890         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1891                 if (!strncasecmp(partial, func->name, len))
1892                         buf[bpos++] = func->name;
1893         for (func = cmd->engine_functions; func; func = func->next)
1894                 if (!strncasecmp(partial, func->name, len))
1895                         buf[bpos++] = func->name;
1896
1897         buf[bpos] = NULL;
1898         return buf;
1899 }
1900
1901 // written by LadyHavoc
1902 void Cmd_CompleteCommandPrint (cmd_state_t *cmd, const char *partial)
1903 {
1904         cmd_function_t *func;
1905         size_t len = strlen(partial);
1906         // Loop through the command list and print all matches
1907         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
1908                 if (!strncasecmp(partial, func->name, len))
1909                         Con_Printf("^2%s^7: %s\n", func->name, func->description);
1910         for (func = cmd->engine_functions; func; func = func->next)
1911                 if (!strncasecmp(partial, func->name, len))
1912                         Con_Printf("^2%s^7: %s\n", func->name, func->description);
1913 }
1914
1915 /*
1916         Cmd_CompleteAlias
1917
1918         New function for tab-completion system
1919         Added by EvilTypeGuy
1920         Thanks to Fett erich@heintz.com
1921         Thanks to taniwha
1922
1923 */
1924 const char *Cmd_CompleteAlias (cmd_state_t *cmd, const char *partial)
1925 {
1926         cmdalias_t *alias;
1927         size_t len;
1928
1929         len = strlen(partial);
1930
1931         if (!len)
1932                 return NULL;
1933
1934         // Check functions
1935         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1936                 if (!strncasecmp(partial, alias->name, len))
1937                         return alias->name;
1938
1939         return NULL;
1940 }
1941
1942 // written by LadyHavoc
1943 void Cmd_CompleteAliasPrint (cmd_state_t *cmd, const char *partial)
1944 {
1945         cmdalias_t *alias;
1946         size_t len = strlen(partial);
1947         // Loop through the alias list and print all matches
1948         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1949                 if (!strncasecmp(partial, alias->name, len))
1950                         Con_Printf("^5%s^7: %s", alias->name, alias->value);
1951 }
1952
1953
1954 /*
1955         Cmd_CompleteAliasCountPossible
1956
1957         New function for tab-completion system
1958         Added by EvilTypeGuy
1959         Thanks to Fett erich@heintz.com
1960         Thanks to taniwha
1961
1962 */
1963 int Cmd_CompleteAliasCountPossible (cmd_state_t *cmd, const char *partial)
1964 {
1965         cmdalias_t      *alias;
1966         size_t          len;
1967         int                     h;
1968
1969         h = 0;
1970
1971         len = strlen(partial);
1972
1973         if (!len)
1974                 return 0;
1975
1976         // Loop through the command list and count all partial matches
1977         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
1978                 if (!strncasecmp(partial, alias->name, len))
1979                         h++;
1980
1981         return h;
1982 }
1983
1984 /*
1985         Cmd_CompleteAliasBuildList
1986
1987         New function for tab-completion system
1988         Added by EvilTypeGuy
1989         Thanks to Fett erich@heintz.com
1990         Thanks to taniwha
1991
1992 */
1993 const char **Cmd_CompleteAliasBuildList (cmd_state_t *cmd, const char *partial)
1994 {
1995         cmdalias_t *alias;
1996         size_t len = 0;
1997         size_t bpos = 0;
1998         size_t sizeofbuf = (Cmd_CompleteAliasCountPossible (cmd, partial) + 1) * sizeof (const char *);
1999         const char **buf;
2000
2001         len = strlen(partial);
2002         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
2003         // Loop through the alias list and print all matches
2004         for (alias = cmd->userdefined->alias; alias; alias = alias->next)
2005                 if (!strncasecmp(partial, alias->name, len))
2006                         buf[bpos++] = alias->name;
2007
2008         buf[bpos] = NULL;
2009         return buf;
2010 }
2011
2012 // TODO: Make this more generic?
2013 void Cmd_ClearCSQCCommands (cmd_state_t *cmd)
2014 {
2015         cmd_function_t *func;
2016         cmd_function_t **next = &cmd->userdefined->csqc_functions;
2017
2018         while(*next)
2019         {
2020                 func = *next;
2021                 *next = func->next;
2022                 Z_Free(func);
2023         }
2024 }
2025
2026 extern cvar_t sv_cheats;
2027
2028 /*
2029 ============
2030 Cmd_ExecuteString
2031
2032 A complete command line has been parsed, so try to execute it
2033 FIXME: lookupnoadd the token to speed search?
2034 ============
2035 */
2036 void Cmd_ExecuteString (cmd_state_t *cmd, const char *text, cmd_source_t src, qboolean lockmutex)
2037 {
2038         int oldpos;
2039         cmd_function_t *func;
2040         cmdalias_t *a;
2041         if (lockmutex)
2042                 Cbuf_Lock(cmd);
2043         oldpos = cmd->tokenizebufferpos;
2044         cmd->source = src;
2045
2046         Cmd_TokenizeString (cmd, text);
2047
2048 // execute the command line
2049         if (!Cmd_Argc(cmd))
2050                 goto done; // no tokens
2051
2052 // check functions
2053         for (func = cmd->userdefined->csqc_functions; func; func = func->next)
2054         {
2055                 if (!strcasecmp(cmd->argv[0], func->name))
2056                 {
2057                         if (func->csqcfunc && CL_VM_ConsoleCommand(text))       //[515]: csqc
2058                                 goto done;
2059                         break;
2060                 }
2061         }
2062
2063         for (func = cmd->engine_functions; func; func=func->next)
2064         {
2065                 if (!strcasecmp (cmd->argv[0], func->name))
2066                 {
2067                         switch (src)
2068                         {
2069                         case src_command:
2070                                 if (func->function)
2071                                         func->function(cmd);
2072                                 else
2073                                         Con_Printf("Command \"%s\" can not be executed\n", Cmd_Argv(cmd, 0));
2074                                 goto done;
2075                         case src_client:
2076                                 if (func->function)
2077                                 {
2078                                         if((func->flags & CMD_CHEAT) && !sv_cheats.integer)
2079                                                 SV_ClientPrintf("No cheats allowed. The server must have sv_cheats set to 1\n");
2080                                         func->function(cmd);
2081                                         goto done;
2082                                 }
2083                         }
2084                         break;
2085                 }
2086         }
2087
2088         // if it's a client command and no command was found, say so.
2089         if (cmd->source == src_client)
2090         {
2091                 Con_Printf("Client \"%s\" tried to execute \"%s\"\n", host_client->name, text);
2092                 goto done;
2093         }
2094
2095 // check alias
2096         for (a=cmd->userdefined->alias ; a ; a=a->next)
2097         {
2098                 if (!strcasecmp (cmd->argv[0], a->name))
2099                 {
2100                         Cmd_ExecuteAlias(cmd, a);
2101                         goto done;
2102                 }
2103         }
2104
2105 // check cvars
2106         if (!Cvar_Command(cmd) && host_framecount > 0)
2107                 Con_Printf("Unknown command \"%s\"\n", Cmd_Argv(cmd, 0));
2108 done:
2109         cmd->tokenizebufferpos = oldpos;
2110         if (lockmutex)
2111                 Cbuf_Unlock(cmd);
2112 }
2113
2114
2115 /*
2116 ===================
2117 Cmd_ForwardStringToServer
2118
2119 Sends an entire command string over to the server, unprocessed
2120 ===================
2121 */
2122 void Cmd_ForwardStringToServer (const char *s)
2123 {
2124         char temp[128];
2125         if (cls.state != ca_connected)
2126         {
2127                 Con_Printf("Can't \"%s\", not connected\n", s);
2128                 return;
2129         }
2130
2131         if (!cls.netcon)
2132                 return;
2133
2134         // LadyHavoc: thanks to Fuh for bringing the pure evil of SZ_Print to my
2135         // attention, it has been eradicated from here, its only (former) use in
2136         // all of darkplaces.
2137         if (cls.protocol == PROTOCOL_QUAKEWORLD)
2138                 MSG_WriteByte(&cls.netcon->message, qw_clc_stringcmd);
2139         else
2140                 MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
2141         if ((!strncmp(s, "say ", 4) || !strncmp(s, "say_team ", 9)) && cl_locs_enable.integer)
2142         {
2143                 // say/say_team commands can replace % character codes with status info
2144                 while (*s)
2145                 {
2146                         if (*s == '%' && s[1])
2147                         {
2148                                 // handle proquake message macros
2149                                 temp[0] = 0;
2150                                 switch (s[1])
2151                                 {
2152                                 case 'l': // current location
2153                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.movement_origin);
2154                                         break;
2155                                 case 'h': // current health
2156                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_HEALTH]);
2157                                         break;
2158                                 case 'a': // current armor
2159                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ARMOR]);
2160                                         break;
2161                                 case 'x': // current rockets
2162                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ROCKETS]);
2163                                         break;
2164                                 case 'c': // current cells
2165                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_CELLS]);
2166                                         break;
2167                                 // silly proquake macros
2168                                 case 'd': // loc at last death
2169                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.lastdeathorigin);
2170                                         break;
2171                                 case 't': // current time
2172                                         dpsnprintf(temp, sizeof(temp), "%.0f:%.0f", floor(cl.time / 60), cl.time - floor(cl.time / 60) * 60);
2173                                         break;
2174                                 case 'r': // rocket launcher status ("I have RL", "I need rockets", "I need RL")
2175                                         if (!(cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER))
2176                                                 dpsnprintf(temp, sizeof(temp), "I need RL");
2177                                         else if (!cl.stats[STAT_ROCKETS])
2178                                                 dpsnprintf(temp, sizeof(temp), "I need rockets");
2179                                         else
2180                                                 dpsnprintf(temp, sizeof(temp), "I have RL");
2181                                         break;
2182                                 case 'p': // powerup status (outputs "quad" "pent" and "eyes" according to status)
2183                                         if (cl.stats[STAT_ITEMS] & IT_QUAD)
2184                                         {
2185                                                 if (temp[0])
2186                                                         strlcat(temp, " ", sizeof(temp));
2187                                                 strlcat(temp, "quad", sizeof(temp));
2188                                         }
2189                                         if (cl.stats[STAT_ITEMS] & IT_INVULNERABILITY)
2190                                         {
2191                                                 if (temp[0])
2192                                                         strlcat(temp, " ", sizeof(temp));
2193                                                 strlcat(temp, "pent", sizeof(temp));
2194                                         }
2195                                         if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
2196                                         {
2197                                                 if (temp[0])
2198                                                         strlcat(temp, " ", sizeof(temp));
2199                                                 strlcat(temp, "eyes", sizeof(temp));
2200                                         }
2201                                         break;
2202                                 case 'w': // weapon status (outputs "SSG:NG:SNG:GL:RL:LG" with the text between : characters omitted if you lack the weapon)
2203                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_SHOTGUN)
2204                                                 strlcat(temp, "SSG", sizeof(temp));
2205                                         strlcat(temp, ":", sizeof(temp));
2206                                         if (cl.stats[STAT_ITEMS] & IT_NAILGUN)
2207                                                 strlcat(temp, "NG", sizeof(temp));
2208                                         strlcat(temp, ":", sizeof(temp));
2209                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_NAILGUN)
2210                                                 strlcat(temp, "SNG", sizeof(temp));
2211                                         strlcat(temp, ":", sizeof(temp));
2212                                         if (cl.stats[STAT_ITEMS] & IT_GRENADE_LAUNCHER)
2213                                                 strlcat(temp, "GL", sizeof(temp));
2214                                         strlcat(temp, ":", sizeof(temp));
2215                                         if (cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER)
2216                                                 strlcat(temp, "RL", sizeof(temp));
2217                                         strlcat(temp, ":", sizeof(temp));
2218                                         if (cl.stats[STAT_ITEMS] & IT_LIGHTNING)
2219                                                 strlcat(temp, "LG", sizeof(temp));
2220                                         break;
2221                                 default:
2222                                         // not a recognized macro, print it as-is...
2223                                         temp[0] = s[0];
2224                                         temp[1] = s[1];
2225                                         temp[2] = 0;
2226                                         break;
2227                                 }
2228                                 // write the resulting text
2229                                 SZ_Write(&cls.netcon->message, (unsigned char *)temp, (int)strlen(temp));
2230                                 s += 2;
2231                                 continue;
2232                         }
2233                         MSG_WriteByte(&cls.netcon->message, *s);
2234                         s++;
2235                 }
2236                 MSG_WriteByte(&cls.netcon->message, 0);
2237         }
2238         else // any other command is passed on as-is
2239                 SZ_Write(&cls.netcon->message, (const unsigned char *)s, (int)strlen(s) + 1);
2240 }
2241
2242 /*
2243 ===================
2244 Cmd_ForwardToServer
2245
2246 Sends the entire command line over to the server
2247 ===================
2248 */
2249 void Cmd_ForwardToServer_f (cmd_state_t *cmd)
2250 {
2251         const char *s;
2252         char vabuf[1024];
2253         if (!strcasecmp(Cmd_Argv(cmd, 0), "cmd"))
2254         {
2255                 // we want to strip off "cmd", so just send the args
2256                 s = Cmd_Argc(cmd) > 1 ? Cmd_Args(cmd) : "";
2257         }
2258         else
2259         {
2260                 // we need to keep the command name, so send Cmd_Argv(cmd, 0), a space and then Cmd_Args(cmd)
2261                 s = va(vabuf, sizeof(vabuf), "%s %s", Cmd_Argv(cmd, 0), Cmd_Argc(cmd) > 1 ? Cmd_Args(cmd) : "");
2262         }
2263         // don't send an empty forward message if the user tries "cmd" by itself
2264         if (!s || !*s)
2265                 return;
2266         Cmd_ForwardStringToServer(s);
2267 }
2268
2269
2270 /*
2271 ================
2272 Cmd_CheckParm
2273
2274 Returns the position (1 to argc-1) in the command's argument list
2275 where the given parameter apears, or 0 if not present
2276 ================
2277 */
2278
2279 int Cmd_CheckParm (cmd_state_t *cmd, const char *parm)
2280 {
2281         int i;
2282
2283         if (!parm)
2284         {
2285                 Con_Printf ("Cmd_CheckParm: NULL");
2286                 return 0;
2287         }
2288
2289         for (i = 1; i < Cmd_Argc (cmd); i++)
2290                 if (!strcasecmp (parm, Cmd_Argv(cmd, i)))
2291                         return i;
2292
2293         return 0;
2294 }
2295
2296
2297
2298 void Cmd_SaveInitState(void)
2299 {
2300         cmd_iter_t *cmd_iter;
2301         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
2302         {
2303                 cmd_state_t *cmd = cmd_iter->cmd;
2304                 cmd_function_t *f;
2305                 cmdalias_t *a;
2306                 for (f = cmd->userdefined->csqc_functions; f; f = f->next)
2307                         f->initstate = true;
2308                 for (f = cmd->engine_functions; f; f = f->next)
2309                         f->initstate = true;
2310                 for (a = cmd->userdefined->alias; a; a = a->next)
2311                 {
2312                         a->initstate = true;
2313                         a->initialvalue = Mem_strdup(zonemempool, a->value);
2314                 }
2315         }
2316         Cvar_SaveInitState(&cvars_all);
2317 }
2318
2319 void Cmd_RestoreInitState(void)
2320 {
2321         cmd_iter_t *cmd_iter;
2322         for (cmd_iter = cmd_iter_all; cmd_iter->cmd; cmd_iter++)
2323         {
2324                 cmd_state_t *cmd = cmd_iter->cmd;
2325                 cmd_function_t *f, **fp;
2326                 cmdalias_t *a, **ap;
2327                 for (fp = &cmd->userdefined->csqc_functions; (f = *fp);)
2328                 {
2329                         if (f->initstate)
2330                                 fp = &f->next;
2331                         else
2332                         {
2333                                 // destroy this command, it didn't exist at init
2334                                 Con_DPrintf("Cmd_RestoreInitState: Destroying command %s\n", f->name);
2335                                 *fp = f->next;
2336                                 Z_Free(f);
2337                         }
2338                 }
2339                 for (fp = &cmd->engine_functions; (f = *fp);)
2340                 {
2341                         if (f->initstate)
2342                                 fp = &f->next;
2343                         else
2344                         {
2345                                 // destroy this command, it didn't exist at init
2346                                 Con_DPrintf("Cmd_RestoreInitState: Destroying command %s\n", f->name);
2347                                 *fp = f->next;
2348                                 Z_Free(f);
2349                         }
2350                 }
2351                 for (ap = &cmd->userdefined->alias; (a = *ap);)
2352                 {
2353                         if (a->initstate)
2354                         {
2355                                 // restore this alias, it existed at init
2356                                 if (strcmp(a->value ? a->value : "", a->initialvalue ? a->initialvalue : ""))
2357                                 {
2358                                         Con_DPrintf("Cmd_RestoreInitState: Restoring alias %s\n", a->name);
2359                                         if (a->value)
2360                                                 Z_Free(a->value);
2361                                         a->value = Mem_strdup(zonemempool, a->initialvalue);
2362                                 }
2363                                 ap = &a->next;
2364                         }
2365                         else
2366                         {
2367                                 // free this alias, it didn't exist at init...
2368                                 Con_DPrintf("Cmd_RestoreInitState: Destroying alias %s\n", a->name);
2369                                 *ap = a->next;
2370                                 if (a->value)
2371                                         Z_Free(a->value);
2372                                 Z_Free(a);
2373                         }
2374                 }
2375         }
2376         Cvar_RestoreInitState(&cvars_all);
2377 }