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