prvm_edict.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 // AK new vm
  21
  22 #include "quakedef.h"
  23 #include "progsvm.h"
  24
  25 prvm_prog_t *prog;
  26
  27 static prvm_prog_t prog_list[PRVM_MAXPROGS];
  28
  29 int             prvm_type_size[8] = {1,sizeof(string_t)/4,1,3,1,1,sizeof(func_t)/4,sizeof(void *)/4};
  30
  31 ddef_t *PRVM_ED_FieldAtOfs(int ofs);
  32 qboolean PRVM_ED_ParseEpair(prvm_edict_t *ent, ddef_t *key, const char *s, qboolean parsebackslash);
  33
  34 // LordHavoc: prints every opcode as it executes - warning: this is significant spew
  35 cvar_t prvm_traceqc = {0, "prvm_traceqc", "0", "prints every QuakeC statement as it is executed (only for really thorough debugging!)"};
  36 // LordHavoc: counts usage of each QuakeC statement
  37 cvar_t prvm_statementprofiling = {0, "prvm_statementprofiling", "0", "counts how many times each QuakeC statement has been executed, these counts are displayed in prvm_printfunction output (if enabled)"};
  38 cvar_t prvm_backtraceforwarnings = {0, "prvm_backtraceforwarnings", "0", "print a backtrace for warnings too"};
  39 cvar_t prvm_leaktest = {0, "prvm_leaktest", "0", "try to detect memory leaks in strings or entities"};
  40 cvar_t prvm_leaktest_ignore_classnames = {0, "prvm_leaktest_ignore_classnames", "", "classnames of entities to NOT leak check because they are found by find(world, classname, ...) but are actually spawned by QC code (NOT map entities)"};
  41 cvar_t prvm_errordump = {0, "prvm_errordump", "0", "write a savegame on crash to crash-server.dmp"};
  42
  43 qboolean prvm_runawaycheck = true;
  44
  45 // LordHavoc: optional runtime bounds checking (speed drain, but worth it for security, on by default - breaks most QCCX features (used by CRMod and others))
  46 // enables detection of out of bounds memory access in the QuakeC code being run (in other words, prevents really exceedingly bad QuakeC code from doing nasty things to your computer)
  47 qboolean prvm_boundscheck = true;
  48
  49 extern sizebuf_t vm_tempstringsbuf;
  50
  51 //============================================================================
  52 // mempool handling
  53
  54 /*
  55 ===============
  56 PRVM_MEM_Alloc
  57 ===============
  58 */
  59 void PRVM_MEM_Alloc(void)
  60 {
  61         int i;
  62
  63         // reserve space for the null entity aka world
  64         // check bound of max_edicts
  65         prog->max_edicts = bound(1 + prog->reserved_edicts, prog->max_edicts, prog->limit_edicts);
  66         prog->num_edicts = bound(1 + prog->reserved_edicts, prog->num_edicts, prog->max_edicts);
  67
  68         // edictprivate_size has to be min as big prvm_edict_private_t
  69         prog->edictprivate_size = max(prog->edictprivate_size,(int)sizeof(prvm_edict_private_t));
  70
  71         // alloc edicts
  72         prog->edicts = (prvm_edict_t *)Mem_Alloc(prog->progs_mempool,prog->limit_edicts * sizeof(prvm_edict_t));
  73
  74         // alloc edict private space
  75         prog->edictprivate = Mem_Alloc(prog->progs_mempool, prog->max_edicts * prog->edictprivate_size);
  76
  77         // alloc edict fields
  78         prog->edictsfields = Mem_Alloc(prog->progs_mempool, prog->max_edicts * prog->edict_size);
  79
  80         // set edict pointers
  81         for(i = 0; i < prog->max_edicts; i++)
  82         {
  83                 prog->edicts[i].priv.required = (prvm_edict_private_t *)((unsigned char  *)prog->edictprivate + i * prog->edictprivate_size);
  84                 prog->edicts[i].fields.vp = (void*)((unsigned char *)prog->edictsfields + i * prog->edict_size);
  85         }
  86 }
  87
  88 /*
  89 ===============
  90 PRVM_MEM_IncreaseEdicts
  91 ===============
  92 */
  93 void PRVM_MEM_IncreaseEdicts(void)
  94 {
  95         int             i;
  96         int             oldmaxedicts = prog->max_edicts;
  97         void    *oldedictsfields = prog->edictsfields;
  98         void    *oldedictprivate = prog->edictprivate;
  99
 100         if(prog->max_edicts >= prog->limit_edicts)
 101                 return;
 102
 103         PRVM_GCALL(begin_increase_edicts)();
 104
 105         // increase edicts
 106         prog->max_edicts = min(prog->max_edicts + 256, prog->limit_edicts);
 107
 108         prog->edictsfields = Mem_Alloc(prog->progs_mempool, prog->max_edicts * prog->edict_size);
 109         prog->edictprivate = Mem_Alloc(prog->progs_mempool, prog->max_edicts * prog->edictprivate_size);
 110
 111         memcpy(prog->edictsfields, oldedictsfields, oldmaxedicts * prog->edict_size);
 112         memcpy(prog->edictprivate, oldedictprivate, oldmaxedicts * prog->edictprivate_size);
 113
 114         //set e and v pointers
 115         for(i = 0; i < prog->max_edicts; i++)
 116         {
 117                 prog->edicts[i].priv.required  = (prvm_edict_private_t *)((unsigned char  *)prog->edictprivate + i * prog->edictprivate_size);
 118                 prog->edicts[i].fields.vp = (void*)((unsigned char *)prog->edictsfields + i * prog->edict_size);
 119         }
 120
 121         PRVM_GCALL(end_increase_edicts)();
 122
 123         Mem_Free(oldedictsfields);
 124         Mem_Free(oldedictprivate);
 125 }
 126
 127 //============================================================================
 128 // normal prvm
 129
 130 int PRVM_ED_FindFieldOffset(const char *field)
 131 {
 132         ddef_t *d;
 133         d = PRVM_ED_FindField(field);
 134         if (!d)
 135                 return -1;
 136         return d->ofs;
 137 }
 138
 139 int PRVM_ED_FindGlobalOffset(const char *global)
 140 {
 141         ddef_t *d;
 142         d = PRVM_ED_FindGlobal(global);
 143         if (!d)
 144                 return -1;
 145         return d->ofs;
 146 }
 147
 148 func_t PRVM_ED_FindFunctionOffset(const char *function)
 149 {
 150         mfunction_t *f;
 151         f = PRVM_ED_FindFunction(function);
 152         if (!f)
 153                 return 0;
 154         return (func_t)(f - prog->functions);
 155 }
 156
 157 qboolean PRVM_ProgLoaded(int prognr)
 158 {
 159         if(prognr < 0 || prognr >= PRVM_MAXPROGS)
 160                 return FALSE;
 161
 162         return (prog_list[prognr].loaded ? TRUE : FALSE);
 163 }
 164
 165 /*
 166 =================
 167 PRVM_SetProgFromString
 168 =================
 169 */
 170 // perhaps add a return value when the str doesnt exist
 171 qboolean PRVM_SetProgFromString(const char *str)
 172 {
 173         int i = 0;
 174         for(; i < PRVM_MAXPROGS ; i++)
 175                 if(prog_list[i].name && !strcmp(prog_list[i].name,str))
 176                 {
 177                         if(prog_list[i].loaded)
 178                         {
 179                                 prog = &prog_list[i];
 180                                 return TRUE;
 181                         }
 182                         else
 183                         {
 184                                 Con_Printf("%s not loaded !\n",PRVM_NAME);
 185                                 return FALSE;
 186                         }
 187                 }
 188
 189         Con_Printf("Invalid program name %s !\n", str);
 190         return FALSE;
 191 }
 192
 193 /*
 194 =================
 195 PRVM_SetProg
 196 =================
 197 */
 198 void PRVM_SetProg(int prognr)
 199 {
 200         if(0 <= prognr && prognr < PRVM_MAXPROGS)
 201         {
 202                 if(prog_list[prognr].loaded)
 203                         prog = &prog_list[prognr];
 204                 else
 205                         PRVM_ERROR("%i not loaded !", prognr);
 206                 return;
 207         }
 208         PRVM_ERROR("Invalid program number %i", prognr);
 209 }
 210
 211 /*
 212 =================
 213 PRVM_ED_ClearEdict
 214
 215 Sets everything to NULL
 216 =================
 217 */
 218 void PRVM_ED_ClearEdict (prvm_edict_t *e)
 219 {
 220         memset (e->fields.vp, 0, prog->progs->entityfields * 4);
 221         e->priv.required->free = false;
 222
 223         // AK: Let the init_edict function determine if something needs to be initialized
 224         PRVM_GCALL(init_edict)(e);
 225 }
 226
 227 const char *PRVM_AllocationOrigin()
 228 {
 229         char *buf = NULL;
 230         if(prog->leaktest_active)
 231         if(prog->depth > 0) // actually in QC code and not just parsing the entities block of a map/savegame
 232         {
 233                 buf = (char *)PRVM_Alloc(128);
 234                 PRVM_ShortStackTrace(buf, 128);
 235         }
 236         return buf;
 237 }
 238
 239 /*
 240 =================
 241 PRVM_ED_CanAlloc
 242
 243 Returns if this particular edict could get allocated by PRVM_ED_Alloc
 244 =================
 245 */
 246 qboolean PRVM_ED_CanAlloc(prvm_edict_t *e)
 247 {
 248         if(!e->priv.required->free)
 249                 return false;
 250         if(e->priv.required->freetime < prog->starttime + 2)
 251                 return true;
 252         if(realtime > e->priv.required->freetime + 1)
 253                 return true;
 254         return false; // entity slot still blocked because the entity was freed less than one second ago
 255 }
 256
 257 /*
 258 =================
 259 PRVM_ED_Alloc
 260
 261 Either finds a free edict, or allocates a new one.
 262 Try to avoid reusing an entity that was recently freed, because it
 263 can cause the client to think the entity morphed into something else
 264 instead of being removed and recreated, which can cause interpolated
 265 angles and bad trails.
 266 =================
 267 */
 268 prvm_edict_t *PRVM_ED_Alloc (void)
 269 {
 270         int                     i;
 271         prvm_edict_t            *e;
 272
 273         // the client qc dont need maxclients
 274         // thus it doesnt need to use svs.maxclients
 275         // AK:  changed i=svs.maxclients+1
 276         // AK:  changed so the edict 0 wont spawn -> used as reserved/world entity
 277         //              although the menu/client has no world
 278         for (i = prog->reserved_edicts + 1;i < prog->num_edicts;i++)
 279         {
 280                 e = PRVM_EDICT_NUM(i);
 281                 if(PRVM_ED_CanAlloc(e))
 282                 {
 283                         PRVM_ED_ClearEdict (e);
 284                         e->priv.required->allocation_origin = PRVM_AllocationOrigin();
 285                         return e;
 286                 }
 287         }
 288
 289         if (i == prog->limit_edicts)
 290                 PRVM_ERROR ("%s: PRVM_ED_Alloc: no free edicts",PRVM_NAME);
 291
 292         prog->num_edicts++;
 293         if (prog->num_edicts >= prog->max_edicts)
 294                 PRVM_MEM_IncreaseEdicts();
 295
 296         e = PRVM_EDICT_NUM(i);
 297         PRVM_ED_ClearEdict (e);
 298
 299         e->priv.required->allocation_origin = PRVM_AllocationOrigin();
 300
 301         return e;
 302 }
 303
 304 /*
 305 =================
 306 PRVM_ED_Free
 307
 308 Marks the edict as free
 309 FIXME: walk all entities and NULL out references to this entity
 310 =================
 311 */
 312 void PRVM_ED_Free (prvm_edict_t *ed)
 313 {
 314         // dont delete the null entity (world) or reserved edicts
 315         if(PRVM_NUM_FOR_EDICT(ed) <= prog->reserved_edicts )
 316                 return;
 317
 318         PRVM_GCALL(free_edict)(ed);
 319
 320         ed->priv.required->free = true;
 321         ed->priv.required->freetime = realtime;
 322         if(ed->priv.required->allocation_origin)
 323         {
 324                 PRVM_Free((char *)ed->priv.required->allocation_origin);
 325                 ed->priv.required->allocation_origin = NULL;
 326         }
 327 }
 328
 329 //===========================================================================
 330
 331 /*
 332 ============
 333 PRVM_ED_GlobalAtOfs
 334 ============
 335 */
 336 ddef_t *PRVM_ED_GlobalAtOfs (int ofs)
 337 {
 338         ddef_t          *def;
 339         int                     i;
 340
 341         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
 342         {
 343                 def = &prog->globaldefs[i];
 344                 if (def->ofs == ofs)
 345                         return def;
 346         }
 347         return NULL;
 348 }
 349
 350 /*
 351 ============
 352 PRVM_ED_FieldAtOfs
 353 ============
 354 */
 355 ddef_t *PRVM_ED_FieldAtOfs (int ofs)
 356 {
 357         ddef_t          *def;
 358         int                     i;
 359
 360         for (i=0 ; i<prog->progs->numfielddefs ; i++)
 361         {
 362                 def = &prog->fielddefs[i];
 363                 if (def->ofs == ofs)
 364                         return def;
 365         }
 366         return NULL;
 367 }
 368
 369 /*
 370 ============
 371 PRVM_ED_FindField
 372 ============
 373 */
 374 ddef_t *PRVM_ED_FindField (const char *name)
 375 {
 376         ddef_t *def;
 377         int i;
 378
 379         for (i=0 ; i<prog->progs->numfielddefs ; i++)
 380         {
 381                 def = &prog->fielddefs[i];
 382                 if (!strcmp(PRVM_GetString(def->s_name), name))
 383                         return def;
 384         }
 385         return NULL;
 386 }
 387
 388 /*
 389 ============
 390 PRVM_ED_FindGlobal
 391 ============
 392 */
 393 ddef_t *PRVM_ED_FindGlobal (const char *name)
 394 {
 395         ddef_t *def;
 396         int i;
 397
 398         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
 399         {
 400                 def = &prog->globaldefs[i];
 401                 if (!strcmp(PRVM_GetString(def->s_name), name))
 402                         return def;
 403         }
 404         return NULL;
 405 }
 406
 407
 408 /*
 409 ============
 410 PRVM_ED_FindFunction
 411 ============
 412 */
 413 mfunction_t *PRVM_ED_FindFunction (const char *name)
 414 {
 415         mfunction_t             *func;
 416         int                             i;
 417
 418         for (i=0 ; i<prog->progs->numfunctions ; i++)
 419         {
 420                 func = &prog->functions[i];
 421                 if (!strcmp(PRVM_GetString(func->s_name), name))
 422                         return func;
 423         }
 424         return NULL;
 425 }
 426
 427
 428 /*
 429 ============
 430 PRVM_ValueString
 431
 432 Returns a string describing *data in a type specific manner
 433 =============
 434 */
 435 char *PRVM_ValueString (etype_t type, prvm_eval_t *val)
 436 {
 437         static char line[MAX_INPUTLINE];
 438         ddef_t *def;
 439         mfunction_t *f;
 440         int n;
 441
 442         type = (etype_t)((int) type & ~DEF_SAVEGLOBAL);
 443
 444         switch (type)
 445         {
 446         case ev_string:
 447                 strlcpy (line, PRVM_GetString (val->string), sizeof (line));
 448                 break;
 449         case ev_entity:
 450                 n = val->edict;
 451                 if (n < 0 || n >= prog->limit_edicts)
 452                         dpsnprintf (line, sizeof(line), "entity %i (invalid!)", n);
 453                 else
 454                         dpsnprintf (line, sizeof(line), "entity %i", n);
 455                 break;
 456         case ev_function:
 457                 f = prog->functions + val->function;
 458                 dpsnprintf (line, sizeof(line), "%s()", PRVM_GetString(f->s_name));
 459                 break;
 460         case ev_field:
 461                 def = PRVM_ED_FieldAtOfs ( val->_int );
 462                 dpsnprintf (line, sizeof(line), ".%s", PRVM_GetString(def->s_name));
 463                 break;
 464         case ev_void:
 465                 dpsnprintf (line, sizeof(line), "void");
 466                 break;
 467         case ev_float:
 468                 // LordHavoc: changed from %5.1f to %10.4f
 469                 dpsnprintf (line, sizeof(line), "%10.4f", val->_float);
 470                 break;
 471         case ev_vector:
 472                 // LordHavoc: changed from %5.1f to %10.4f
 473                 dpsnprintf (line, sizeof(line), "'%10.4f %10.4f %10.4f'", val->vector[0], val->vector[1], val->vector[2]);
 474                 break;
 475         case ev_pointer:
 476                 dpsnprintf (line, sizeof(line), "pointer");
 477                 break;
 478         default:
 479                 dpsnprintf (line, sizeof(line), "bad type %i", (int) type);
 480                 break;
 481         }
 482
 483         return line;
 484 }
 485
 486 /*
 487 ============
 488 PRVM_UglyValueString
 489
 490 Returns a string describing *data in a type specific manner
 491 Easier to parse than PR_ValueString
 492 =============
 493 */
 494 char *PRVM_UglyValueString (etype_t type, prvm_eval_t *val)
 495 {
 496         static char line[MAX_INPUTLINE];
 497         int i;
 498         const char *s;
 499         ddef_t *def;
 500         mfunction_t *f;
 501
 502         type = (etype_t)((int)type & ~DEF_SAVEGLOBAL);
 503
 504         switch (type)
 505         {
 506         case ev_string:
 507                 // Parse the string a bit to turn special characters
 508                 // (like newline, specifically) into escape codes,
 509                 // this fixes saving games from various mods
 510                 s = PRVM_GetString (val->string);
 511                 for (i = 0;i < (int)sizeof(line) - 2 && *s;)
 512                 {
 513                         if (*s == '\n')
 514                         {
 515                                 line[i++] = '\\';
 516                                 line[i++] = 'n';
 517                         }
 518                         else if (*s == '\r')
 519                         {
 520                                 line[i++] = '\\';
 521                                 line[i++] = 'r';
 522                         }
 523                         else if (*s == '\\')
 524                         {
 525                                 line[i++] = '\\';
 526                                 line[i++] = '\\';
 527                         }
 528                         else if (*s == '"')
 529                         {
 530                                 line[i++] = '\\';
 531                                 line[i++] = '"';
 532                         }
 533                         else
 534                                 line[i++] = *s;
 535                         s++;
 536                 }
 537                 line[i] = '\0';
 538                 break;
 539         case ev_entity:
 540                 dpsnprintf (line, sizeof (line), "%i", PRVM_NUM_FOR_EDICT(PRVM_PROG_TO_EDICT(val->edict)));
 541                 break;
 542         case ev_function:
 543                 f = prog->functions + val->function;
 544                 strlcpy (line, PRVM_GetString (f->s_name), sizeof (line));
 545                 break;
 546         case ev_field:
 547                 def = PRVM_ED_FieldAtOfs ( val->_int );
 548                 dpsnprintf (line, sizeof (line), ".%s", PRVM_GetString(def->s_name));
 549                 break;
 550         case ev_void:
 551                 dpsnprintf (line, sizeof (line), "void");
 552                 break;
 553         case ev_float:
 554                 dpsnprintf (line, sizeof (line), "%f", val->_float);
 555                 break;
 556         case ev_vector:
 557                 dpsnprintf (line, sizeof (line), "%f %f %f", val->vector[0], val->vector[1], val->vector[2]);
 558                 break;
 559         default:
 560                 dpsnprintf (line, sizeof (line), "bad type %i", type);
 561                 break;
 562         }
 563
 564         return line;
 565 }
 566
 567 /*
 568 ============
 569 PRVM_GlobalString
 570
 571 Returns a string with a description and the contents of a global,
 572 padded to 20 field width
 573 ============
 574 */
 575 char *PRVM_GlobalString (int ofs)
 576 {
 577         char    *s;
 578         //size_t        i;
 579         ddef_t  *def;
 580         void    *val;
 581         static char     line[128];
 582
 583         val = (void *)&prog->globals.generic[ofs];
 584         def = PRVM_ED_GlobalAtOfs(ofs);
 585         if (!def)
 586                 dpsnprintf (line, sizeof(line), "GLOBAL%i", ofs);
 587         else
 588         {
 589                 s = PRVM_ValueString ((etype_t)def->type, (prvm_eval_t *)val);
 590                 dpsnprintf (line, sizeof(line), "%s (=%s)", PRVM_GetString(def->s_name), s);
 591         }
 592
 593         //i = strlen(line);
 594         //for ( ; i<20 ; i++)
 595         //      strcat (line," ");
 596         //strcat (line," ");
 597
 598         return line;
 599 }
 600
 601 char *PRVM_GlobalStringNoContents (int ofs)
 602 {
 603         //size_t        i;
 604         ddef_t  *def;
 605         static char     line[128];
 606
 607         def = PRVM_ED_GlobalAtOfs(ofs);
 608         if (!def)
 609                 dpsnprintf (line, sizeof(line), "GLOBAL%i", ofs);
 610         else
 611                 dpsnprintf (line, sizeof(line), "%s", PRVM_GetString(def->s_name));
 612
 613         //i = strlen(line);
 614         //for ( ; i<20 ; i++)
 615         //      strcat (line," ");
 616         //strcat (line," ");
 617
 618         return line;
 619 }
 620
 621
 622 /*
 623 =============
 624 PRVM_ED_Print
 625
 626 For debugging
 627 =============
 628 */
 629 // LordHavoc: optimized this to print out much more quickly (tempstring)
 630 // LordHavoc: changed to print out every 4096 characters (incase there are a lot of fields to print)
 631 void PRVM_ED_Print(prvm_edict_t *ed, const char *wildcard_fieldname)
 632 {
 633         size_t  l;
 634         ddef_t  *d;
 635         int             *v;
 636         int             i, j;
 637         const char      *name;
 638         int             type;
 639         char    tempstring[MAX_INPUTLINE], tempstring2[260]; // temporary string buffers
 640
 641         if (ed->priv.required->free)
 642         {
 643                 Con_Printf("%s: FREE\n",PRVM_NAME);
 644                 return;
 645         }
 646
 647         tempstring[0] = 0;
 648         dpsnprintf(tempstring, sizeof(tempstring), "\n%s EDICT %i:\n", PRVM_NAME, PRVM_NUM_FOR_EDICT(ed));
 649         for (i=1 ; i<prog->progs->numfielddefs ; i++)
 650         {
 651                 d = &prog->fielddefs[i];
 652                 name = PRVM_GetString(d->s_name);
 653                 if (name[strlen(name)-2] == '_')
 654                         continue;       // skip _x, _y, _z vars
 655
 656                 // Check Field Name Wildcard
 657                 if(wildcard_fieldname)
 658                         if( !matchpattern(name, wildcard_fieldname, 1) )
 659                                 // Didn't match; skip
 660                                 continue;
 661
 662                 v = (int *)((char *)ed->fields.vp + d->ofs*4);
 663
 664         // if the value is still all 0, skip the field
 665                 type = d->type & ~DEF_SAVEGLOBAL;
 666
 667                 for (j=0 ; j<prvm_type_size[type] ; j++)
 668                         if (v[j])
 669                                 break;
 670                 if (j == prvm_type_size[type])
 671                         continue;
 672
 673                 if (strlen(name) > sizeof(tempstring2)-4)
 674                 {
 675                         memcpy (tempstring2, name, sizeof(tempstring2)-4);
 676                         tempstring2[sizeof(tempstring2)-4] = tempstring2[sizeof(tempstring2)-3] = tempstring2[sizeof(tempstring2)-2] = '.';
 677                         tempstring2[sizeof(tempstring2)-1] = 0;
 678                         name = tempstring2;
 679                 }
 680                 strlcat(tempstring, name, sizeof(tempstring));
 681                 for (l = strlen(name);l < 14;l++)
 682                         strlcat(tempstring, " ", sizeof(tempstring));
 683                 strlcat(tempstring, " ", sizeof(tempstring));
 684
 685                 name = PRVM_ValueString((etype_t)d->type, (prvm_eval_t *)v);
 686                 if (strlen(name) > sizeof(tempstring2)-4)
 687                 {
 688                         memcpy (tempstring2, name, sizeof(tempstring2)-4);
 689                         tempstring2[sizeof(tempstring2)-4] = tempstring2[sizeof(tempstring2)-3] = tempstring2[sizeof(tempstring2)-2] = '.';
 690                         tempstring2[sizeof(tempstring2)-1] = 0;
 691                         name = tempstring2;
 692                 }
 693                 strlcat(tempstring, name, sizeof(tempstring));
 694                 strlcat(tempstring, "\n", sizeof(tempstring));
 695                 if (strlen(tempstring) >= sizeof(tempstring)/2)
 696                 {
 697                         Con_Print(tempstring);
 698                         tempstring[0] = 0;
 699                 }
 700         }
 701         if (tempstring[0])
 702                 Con_Print(tempstring);
 703 }
 704
 705 /*
 706 =============
 707 PRVM_ED_Write
 708
 709 For savegames
 710 =============
 711 */
 712 extern cvar_t developer_entityparsing;
 713 void PRVM_ED_Write (qfile_t *f, prvm_edict_t *ed)
 714 {
 715         ddef_t  *d;
 716         int             *v;
 717         int             i, j;
 718         const char      *name;
 719         int             type;
 720
 721         FS_Print(f, "{\n");
 722
 723         if (ed->priv.required->free)
 724         {
 725                 FS_Print(f, "}\n");
 726                 return;
 727         }
 728
 729         for (i=1 ; i<prog->progs->numfielddefs ; i++)
 730         {
 731                 d = &prog->fielddefs[i];
 732                 name = PRVM_GetString(d->s_name);
 733
 734                 if(developer_entityparsing.integer)
 735                         Con_Printf("PRVM_ED_Write: at entity %d field %s\n", PRVM_NUM_FOR_EDICT(ed), name);
 736
 737                 if (name[strlen(name)-2] == '_')
 738                         continue;       // skip _x, _y, _z vars
 739
 740                 v = (int *)((char *)ed->fields.vp + d->ofs*4);
 741
 742         // if the value is still all 0, skip the field
 743                 type = d->type & ~DEF_SAVEGLOBAL;
 744                 for (j=0 ; j<prvm_type_size[type] ; j++)
 745                         if (v[j])
 746                                 break;
 747                 if (j == prvm_type_size[type])
 748                         continue;
 749
 750                 FS_Printf(f,"\"%s\" ",name);
 751                 prog->statestring = va("PRVM_ED_Write, ent=%d, name=%s", i, name);
 752                 FS_Printf(f,"\"%s\"\n", PRVM_UglyValueString((etype_t)d->type, (prvm_eval_t *)v));
 753                 prog->statestring = NULL;
 754         }
 755
 756         FS_Print(f, "}\n");
 757 }
 758
 759 void PRVM_ED_PrintNum (int ent, const char *wildcard_fieldname)
 760 {
 761         PRVM_ED_Print(PRVM_EDICT_NUM(ent), wildcard_fieldname);
 762 }
 763
 764 /*
 765 =============
 766 PRVM_ED_PrintEdicts_f
 767
 768 For debugging, prints all the entities in the current server
 769 =============
 770 */
 771 void PRVM_ED_PrintEdicts_f (void)
 772 {
 773         int             i;
 774         const char *wildcard_fieldname;
 775
 776         if(Cmd_Argc() < 2 || Cmd_Argc() > 3)
 777         {
 778                 Con_Print("prvm_edicts <program name> <optional field name wildcard>\n");
 779                 return;
 780         }
 781
 782         PRVM_Begin;
 783         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
 784                 return;
 785
 786         if( Cmd_Argc() == 3)
 787                 wildcard_fieldname = Cmd_Argv(2);
 788         else
 789                 wildcard_fieldname = NULL;
 790
 791         Con_Printf("%s: %i entities\n", PRVM_NAME, prog->num_edicts);
 792         for (i=0 ; i<prog->num_edicts ; i++)
 793                 PRVM_ED_PrintNum (i, wildcard_fieldname);
 794
 795         PRVM_End;
 796 }
 797
 798 /*
 799 =============
 800 PRVM_ED_PrintEdict_f
 801
 802 For debugging, prints a single edict
 803 =============
 804 */
 805 void PRVM_ED_PrintEdict_f (void)
 806 {
 807         int             i;
 808         const char      *wildcard_fieldname;
 809
 810         if(Cmd_Argc() < 3 || Cmd_Argc() > 4)
 811         {
 812                 Con_Print("prvm_edict <program name> <edict number> <optional field name wildcard>\n");
 813                 return;
 814         }
 815
 816         PRVM_Begin;
 817         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
 818                 return;
 819
 820         i = atoi (Cmd_Argv(2));
 821         if (i >= prog->num_edicts)
 822         {
 823                 Con_Print("Bad edict number\n");
 824                 PRVM_End;
 825                 return;
 826         }
 827         if( Cmd_Argc() == 4)
 828                 // Optional Wildcard Provided
 829                 wildcard_fieldname = Cmd_Argv(3);
 830         else
 831                 // Use All
 832                 wildcard_fieldname = NULL;
 833         PRVM_ED_PrintNum (i, wildcard_fieldname);
 834
 835         PRVM_End;
 836 }
 837
 838 /*
 839 =============
 840 PRVM_ED_Count
 841
 842 For debugging
 843 =============
 844 */
 845 // 2 possibilities : 1. just displaying the active edict count
 846 //                                       2. making a function pointer [x]
 847 void PRVM_ED_Count_f (void)
 848 {
 849         int             i;
 850         prvm_edict_t    *ent;
 851         int             active;
 852
 853         if(Cmd_Argc() != 2)
 854         {
 855                 Con_Print("prvm_count <program name>\n");
 856                 return;
 857         }
 858
 859         PRVM_Begin;
 860         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
 861                 return;
 862
 863         if(prog->count_edicts)
 864                 prog->count_edicts();
 865         else
 866         {
 867                 active = 0;
 868                 for (i=0 ; i<prog->num_edicts ; i++)
 869                 {
 870                         ent = PRVM_EDICT_NUM(i);
 871                         if (ent->priv.required->free)
 872                                 continue;
 873                         active++;
 874                 }
 875
 876                 Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 877                 Con_Printf("active    :%3i\n", active);
 878         }
 879
 880         PRVM_End;
 881 }
 882
 883 /*
 884 ==============================================================================
 885
 886                                         ARCHIVING GLOBALS
 887
 888 FIXME: need to tag constants, doesn't really work
 889 ==============================================================================
 890 */
 891
 892 /*
 893 =============
 894 PRVM_ED_WriteGlobals
 895 =============
 896 */
 897 void PRVM_ED_WriteGlobals (qfile_t *f)
 898 {
 899         ddef_t          *def;
 900         int                     i;
 901         const char              *name;
 902         int                     type;
 903
 904         FS_Print(f,"{\n");
 905         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
 906         {
 907                 def = &prog->globaldefs[i];
 908                 type = def->type;
 909                 if ( !(def->type & DEF_SAVEGLOBAL) )
 910                         continue;
 911                 type &= ~DEF_SAVEGLOBAL;
 912
 913                 if (type != ev_string && type != ev_float && type != ev_entity)
 914                         continue;
 915
 916                 name = PRVM_GetString(def->s_name);
 917
 918                 if(developer_entityparsing.integer)
 919                         Con_Printf("PRVM_ED_WriteGlobals: at global %s\n", name);
 920
 921                 prog->statestring = va("PRVM_ED_WriteGlobals, name=%s", name);
 922                 FS_Printf(f,"\"%s\" ", name);
 923                 FS_Printf(f,"\"%s\"\n", PRVM_UglyValueString((etype_t)type, (prvm_eval_t *)&prog->globals.generic[def->ofs]));
 924                 prog->statestring = NULL;
 925         }
 926         FS_Print(f,"}\n");
 927 }
 928
 929 /*
 930 =============
 931 PRVM_ED_ParseGlobals
 932 =============
 933 */
 934 void PRVM_ED_ParseGlobals (const char *data)
 935 {
 936         char keyname[MAX_INPUTLINE];
 937         ddef_t *key;
 938
 939         while (1)
 940         {
 941                 // parse key
 942                 if (!COM_ParseToken_Simple(&data, false, false))
 943                         PRVM_ERROR ("PRVM_ED_ParseGlobals: EOF without closing brace");
 944                 if (com_token[0] == '}')
 945                         break;
 946
 947                 if (developer_entityparsing.integer)
 948                         Con_Printf("Key: \"%s\"", com_token);
 949
 950                 strlcpy (keyname, com_token, sizeof(keyname));
 951
 952                 // parse value
 953                 if (!COM_ParseToken_Simple(&data, false, true))
 954                         PRVM_ERROR ("PRVM_ED_ParseGlobals: EOF without closing brace");
 955
 956                 if (developer_entityparsing.integer)
 957                         Con_Printf(" \"%s\"\n", com_token);
 958
 959                 if (com_token[0] == '}')
 960                         PRVM_ERROR ("PRVM_ED_ParseGlobals: closing brace without data");
 961
 962                 key = PRVM_ED_FindGlobal (keyname);
 963                 if (!key)
 964                 {
 965                         Con_DPrintf("'%s' is not a global on %s\n", keyname, PRVM_NAME);
 966                         continue;
 967                 }
 968
 969                 if (!PRVM_ED_ParseEpair(NULL, key, com_token, true))
 970                         PRVM_ERROR ("PRVM_ED_ParseGlobals: parse error");
 971         }
 972 }
 973
 974 //============================================================================
 975
 976
 977 /*
 978 =============
 979 PRVM_ED_ParseEval
 980
 981 Can parse either fields or globals
 982 returns false if error
 983 =============
 984 */
 985 qboolean PRVM_ED_ParseEpair(prvm_edict_t *ent, ddef_t *key, const char *s, qboolean parsebackslash)
 986 {
 987         int i, l;
 988         char *new_p;
 989         ddef_t *def;
 990         prvm_eval_t *val;
 991         mfunction_t *func;
 992
 993         if (ent)
 994                 val = (prvm_eval_t *)((int *)ent->fields.vp + key->ofs);
 995         else
 996                 val = (prvm_eval_t *)((int *)prog->globals.generic + key->ofs);
 997         switch (key->type & ~DEF_SAVEGLOBAL)
 998         {
 999         case ev_string:
1000                 l = (int)strlen(s) + 1;
1001                 val->string = PRVM_AllocString(l, &new_p);
1002                 for (i = 0;i < l;i++)
1003                 {
1004                         if (s[i] == '\\' && s[i+1] && parsebackslash)
1005                         {
1006                                 i++;
1007                                 if (s[i] == 'n')
1008                                         *new_p++ = '\n';
1009                                 else if (s[i] == 'r')
1010                                         *new_p++ = '\r';
1011                                 else
1012                                         *new_p++ = s[i];
1013                         }
1014                         else
1015                                 *new_p++ = s[i];
1016                 }
1017                 break;
1018
1019         case ev_float:
1020                 while (*s && ISWHITESPACE(*s))
1021                         s++;
1022                 val->_float = atof(s);
1023                 break;
1024
1025         case ev_vector:
1026                 for (i = 0;i < 3;i++)
1027                 {
1028                         while (*s && ISWHITESPACE(*s))
1029                                 s++;
1030                         if (!*s)
1031                                 break;
1032                         val->vector[i] = atof(s);
1033                         while (!ISWHITESPACE(*s))
1034                                 s++;
1035                         if (!*s)
1036                                 break;
1037                 }
1038                 break;
1039
1040         case ev_entity:
1041                 while (*s && ISWHITESPACE(*s))
1042                         s++;
1043                 i = atoi(s);
1044                 if (i >= prog->limit_edicts)
1045                         Con_Printf("PRVM_ED_ParseEpair: ev_entity reference too large (edict %u >= MAX_EDICTS %u) on %s\n", (unsigned int)i, (unsigned int)MAX_EDICTS, PRVM_NAME);
1046                 while (i >= prog->max_edicts)
1047                         PRVM_MEM_IncreaseEdicts();
1048                 // if IncreaseEdicts was called the base pointer needs to be updated
1049                 if (ent)
1050                         val = (prvm_eval_t *)((int *)ent->fields.vp + key->ofs);
1051                 val->edict = PRVM_EDICT_TO_PROG(PRVM_EDICT_NUM((int)i));
1052                 break;
1053
1054         case ev_field:
1055                 if (*s != '.')
1056                 {
1057                         Con_DPrintf("PRVM_ED_ParseEpair: Bogus field name %s in %s\n", s, PRVM_NAME);
1058                         return false;
1059                 }
1060                 def = PRVM_ED_FindField(s + 1);
1061                 if (!def)
1062                 {
1063                         Con_DPrintf("PRVM_ED_ParseEpair: Can't find field %s in %s\n", s, PRVM_NAME);
1064                         return false;
1065                 }
1066                 val->_int = def->ofs;
1067                 break;
1068
1069         case ev_function:
1070                 func = PRVM_ED_FindFunction(s);
1071                 if (!func)
1072                 {
1073                         Con_Printf("PRVM_ED_ParseEpair: Can't find function %s in %s\n", s, PRVM_NAME);
1074                         return false;
1075                 }
1076                 val->function = func - prog->functions;
1077                 break;
1078
1079         default:
1080                 Con_Printf("PRVM_ED_ParseEpair: Unknown key->type %i for key \"%s\" on %s\n", key->type, PRVM_GetString(key->s_name), PRVM_NAME);
1081                 return false;
1082         }
1083         return true;
1084 }
1085
1086 /*
1087 =============
1088 PRVM_GameCommand_f
1089
1090 Console command to send a string to QC function GameCommand of the
1091 indicated progs
1092
1093 Usage:
1094   sv_cmd adminmsg 3 "do not teamkill"
1095   cl_cmd someclientcommand
1096   menu_cmd somemenucommand
1097
1098 All progs can support this extension; sg calls it in server QC, cg in client
1099 QC, mg in menu QC.
1100 =============
1101 */
1102 void PRVM_GameCommand(const char *whichprogs, const char *whichcmd)
1103 {
1104         if(Cmd_Argc() < 1)
1105         {
1106                 Con_Printf("%s text...\n", whichcmd);
1107                 return;
1108         }
1109
1110         PRVM_Begin;
1111         if(!PRVM_SetProgFromString(whichprogs))
1112         // note: this is not PRVM_SetProg because that one aborts "hard" using PRVM_Error
1113         // also, it makes printing error messages easier!
1114         {
1115                 Con_Printf("%s program not loaded.\n", whichprogs);
1116                 return;
1117         }
1118
1119         if(!prog->funcoffsets.GameCommand)
1120         {
1121                 Con_Printf("%s program do not support GameCommand!\n", whichprogs);
1122         }
1123         else
1124         {
1125                 int restorevm_tempstringsbuf_cursize;
1126                 const char *s;
1127
1128                 s = Cmd_Args();
1129
1130                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
1131                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(s ? s : "");
1132                 PRVM_ExecuteProgram (prog->funcoffsets.GameCommand, "QC function GameCommand is missing");
1133                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
1134         }
1135
1136         PRVM_End;
1137 }
1138 void PRVM_GameCommand_Server_f(void)
1139 {
1140         PRVM_GameCommand("server", "sv_cmd");
1141 }
1142 void PRVM_GameCommand_Client_f(void)
1143 {
1144         PRVM_GameCommand("client", "cl_cmd");
1145 }
1146 void PRVM_GameCommand_Menu_f(void)
1147 {
1148         PRVM_GameCommand("menu", "menu_cmd");
1149 }
1150
1151 /*
1152 =============
1153 PRVM_ED_EdictSet_f
1154
1155 Console command to set a field of a specified edict
1156 =============
1157 */
1158 void PRVM_ED_EdictSet_f(void)
1159 {
1160         prvm_edict_t *ed;
1161         ddef_t *key;
1162
1163         if(Cmd_Argc() != 5)
1164         {
1165                 Con_Print("prvm_edictset <program name> <edict number> <field> <value>\n");
1166                 return;
1167         }
1168
1169         PRVM_Begin;
1170         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
1171         {
1172                 Con_Printf("Wrong program name %s !\n", Cmd_Argv(1));
1173                 return;
1174         }
1175
1176         ed = PRVM_EDICT_NUM(atoi(Cmd_Argv(2)));
1177
1178         if((key = PRVM_ED_FindField(Cmd_Argv(3))) == 0)
1179                 Con_Printf("Key %s not found !\n", Cmd_Argv(3));
1180         else
1181                 PRVM_ED_ParseEpair(ed, key, Cmd_Argv(4), true);
1182
1183         PRVM_End;
1184 }
1185
1186 /*
1187 ====================
1188 PRVM_ED_ParseEdict
1189
1190 Parses an edict out of the given string, returning the new position
1191 ed should be a properly initialized empty edict.
1192 Used for initial level load and for savegames.
1193 ====================
1194 */
1195 const char *PRVM_ED_ParseEdict (const char *data, prvm_edict_t *ent)
1196 {
1197         ddef_t *key;
1198         qboolean anglehack;
1199         qboolean init;
1200         char keyname[256];
1201         size_t n;
1202
1203         init = false;
1204
1205 // go through all the dictionary pairs
1206         while (1)
1207         {
1208         // parse key
1209                 if (!COM_ParseToken_Simple(&data, false, false))
1210                         PRVM_ERROR ("PRVM_ED_ParseEdict: EOF without closing brace");
1211                 if (developer_entityparsing.integer)
1212                         Con_Printf("Key: \"%s\"", com_token);
1213                 if (com_token[0] == '}')
1214                         break;
1215
1216                 // anglehack is to allow QuakeEd to write single scalar angles
1217                 // and allow them to be turned into vectors. (FIXME...)
1218                 if (!strcmp(com_token, "angle"))
1219                 {
1220                         strlcpy (com_token, "angles", sizeof(com_token));
1221                         anglehack = true;
1222                 }
1223                 else
1224                         anglehack = false;
1225
1226                 // FIXME: change light to _light to get rid of this hack
1227                 if (!strcmp(com_token, "light"))
1228                         strlcpy (com_token, "light_lev", sizeof(com_token));    // hack for single light def
1229
1230                 strlcpy (keyname, com_token, sizeof(keyname));
1231
1232                 // another hack to fix keynames with trailing spaces
1233                 n = strlen(keyname);
1234                 while (n && keyname[n-1] == ' ')
1235                 {
1236                         keyname[n-1] = 0;
1237                         n--;
1238                 }
1239
1240         // parse value
1241                 if (!COM_ParseToken_Simple(&data, false, false))
1242                         PRVM_ERROR ("PRVM_ED_ParseEdict: EOF without closing brace");
1243                 if (developer_entityparsing.integer)
1244                         Con_Printf(" \"%s\"\n", com_token);
1245
1246                 if (com_token[0] == '}')
1247                         PRVM_ERROR ("PRVM_ED_ParseEdict: closing brace without data");
1248
1249                 init = true;
1250
1251                 // ignore attempts to set key "" (this problem occurs in nehahra neh1m8.bsp)
1252                 if (!keyname[0])
1253                         continue;
1254
1255 // keynames with a leading underscore are used for utility comments,
1256 // and are immediately discarded by quake
1257                 if (keyname[0] == '_')
1258                         continue;
1259
1260                 key = PRVM_ED_FindField (keyname);
1261                 if (!key)
1262                 {
1263                         Con_DPrintf("%s: '%s' is not a field\n", PRVM_NAME, keyname);
1264                         continue;
1265                 }
1266
1267                 if (anglehack)
1268                 {
1269                         char    temp[32];
1270                         strlcpy (temp, com_token, sizeof(temp));
1271                         dpsnprintf (com_token, sizeof(com_token), "0 %s 0", temp);
1272                 }
1273
1274                 if (!PRVM_ED_ParseEpair(ent, key, com_token, strcmp(keyname, "wad") != 0))
1275                         PRVM_ERROR ("PRVM_ED_ParseEdict: parse error");
1276         }
1277
1278         if (!init)
1279                 ent->priv.required->free = true;
1280
1281         return data;
1282 }
1283
1284
1285 /*
1286 ================
1287 PRVM_ED_LoadFromFile
1288
1289 The entities are directly placed in the array, rather than allocated with
1290 PRVM_ED_Alloc, because otherwise an error loading the map would have entity
1291 number references out of order.
1292
1293 Creates a server's entity / program execution context by
1294 parsing textual entity definitions out of an ent file.
1295
1296 Used for both fresh maps and savegame loads.  A fresh map would also need
1297 to call PRVM_ED_CallSpawnFunctions () to let the objects initialize themselves.
1298 ================
1299 */
1300 void PRVM_ED_LoadFromFile (const char *data)
1301 {
1302         prvm_edict_t *ent;
1303         int parsed, inhibited, spawned, died;
1304         const char *funcname;
1305         mfunction_t *func;
1306
1307         parsed = 0;
1308         inhibited = 0;
1309         spawned = 0;
1310         died = 0;
1311
1312
1313 // parse ents
1314         while (1)
1315         {
1316 // parse the opening brace
1317                 if (!COM_ParseToken_Simple(&data, false, false))
1318                         break;
1319                 if (com_token[0] != '{')
1320                         PRVM_ERROR ("PRVM_ED_LoadFromFile: %s: found %s when expecting {", PRVM_NAME, com_token);
1321
1322                 // CHANGED: this is not conform to PR_LoadFromFile
1323                 if(prog->loadintoworld)
1324                 {
1325                         prog->loadintoworld = false;
1326                         ent = PRVM_EDICT_NUM(0);
1327                 }
1328                 else
1329                         ent = PRVM_ED_Alloc();
1330
1331                 // clear it
1332                 if (ent != prog->edicts)        // hack
1333                         memset (ent->fields.vp, 0, prog->progs->entityfields * 4);
1334
1335                 data = PRVM_ED_ParseEdict (data, ent);
1336                 parsed++;
1337
1338                 // remove the entity ?
1339                 if(prog->load_edict && !prog->load_edict(ent))
1340                 {
1341                         PRVM_ED_Free(ent);
1342                         inhibited++;
1343                         continue;
1344                 }
1345
1346                 if (prog->funcoffsets.SV_OnEntityPreSpawnFunction)
1347                 {
1348                         // self = ent
1349                         PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict = PRVM_EDICT_TO_PROG(ent);
1350                         PRVM_ExecuteProgram (prog->funcoffsets.SV_OnEntityPreSpawnFunction, "QC function SV_OnEntityPreSpawnFunction is missing");
1351                 }
1352
1353                 if(ent->priv.required->free)
1354                 {
1355                         inhibited++;
1356                         continue;
1357                 }
1358
1359 //
1360 // immediately call spawn function, but only if there is a self global and a classname
1361 //
1362                 if(!ent->priv.required->free)
1363                 if(prog->globaloffsets.self >= 0 && prog->fieldoffsets.classname >= 0)
1364                 {
1365                         string_t handle =  PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.classname)->string;
1366                         if (!handle)
1367                         {
1368                                 Con_Print("No classname for:\n");
1369                                 PRVM_ED_Print(ent, NULL);
1370                                 PRVM_ED_Free (ent);
1371                                 continue;
1372                         }
1373
1374                         // look for the spawn function
1375                         funcname = PRVM_GetString(handle);
1376                         func = PRVM_ED_FindFunction (va("spawnfunc_%s", funcname));
1377                         if(!func)
1378                                 if(prog->globaloffsets.require_spawnfunc_prefix < 0)
1379                                         func = PRVM_ED_FindFunction (funcname);
1380
1381                         if (!func)
1382                         {
1383                                 // check for OnEntityNoSpawnFunction
1384                                 if (prog->funcoffsets.SV_OnEntityNoSpawnFunction)
1385                                 {
1386                                         // self = ent
1387                                         PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict = PRVM_EDICT_TO_PROG(ent);
1388                                         PRVM_ExecuteProgram (prog->funcoffsets.SV_OnEntityNoSpawnFunction, "QC function SV_OnEntityNoSpawnFunction is missing");
1389                                 }
1390                                 else
1391                                 {
1392                                         if (developer.integer) // don't confuse non-developers with errors
1393                                         {
1394                                                 Con_Print("No spawn function for:\n");
1395                                                 PRVM_ED_Print(ent, NULL);
1396                                         }
1397                                         PRVM_ED_Free (ent);
1398                                         continue; // not included in "inhibited" count
1399                                 }
1400                         }
1401                         else
1402                         {
1403                                 // self = ent
1404                                 PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict = PRVM_EDICT_TO_PROG(ent);
1405                                 PRVM_ExecuteProgram (func - prog->functions, "");
1406                         }
1407                 }
1408
1409                 if(!ent->priv.required->free)
1410                 if (prog->funcoffsets.SV_OnEntityPostSpawnFunction)
1411                 {
1412                         // self = ent
1413                         PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict = PRVM_EDICT_TO_PROG(ent);
1414                         PRVM_ExecuteProgram (prog->funcoffsets.SV_OnEntityPostSpawnFunction, "QC function SV_OnEntityPostSpawnFunction is missing");
1415                 }
1416
1417                 spawned++;
1418                 if (ent->priv.required->free)
1419                         died++;
1420         }
1421
1422         Con_DPrintf("%s: %i new entities parsed, %i new inhibited, %i (%i new) spawned (whereas %i removed self, %i stayed)\n", PRVM_NAME, parsed, inhibited, prog->num_edicts, spawned, died, spawned - died);
1423 }
1424
1425 void PRVM_FindOffsets(void)
1426 {
1427         // field and global searches use -1 for NULL
1428         memset(&prog->fieldoffsets, -1, sizeof(prog->fieldoffsets));
1429         memset(&prog->globaloffsets, -1, sizeof(prog->globaloffsets));
1430         // functions use 0 for NULL
1431         memset(&prog->funcoffsets, 0, sizeof(prog->funcoffsets));
1432
1433         // server and client qc use a lot of similar fields, so this is combined
1434         prog->fieldoffsets.SendEntity                     = PRVM_ED_FindFieldOffset("SendEntity");
1435         prog->fieldoffsets.SendFlags                      = PRVM_ED_FindFieldOffset("SendFlags");
1436         prog->fieldoffsets.Version                        = PRVM_ED_FindFieldOffset("Version");
1437         prog->fieldoffsets.alpha                          = PRVM_ED_FindFieldOffset("alpha");
1438         prog->fieldoffsets.ammo_cells1                    = PRVM_ED_FindFieldOffset("ammo_cells1");
1439         prog->fieldoffsets.ammo_lava_nails                = PRVM_ED_FindFieldOffset("ammo_lava_nails");
1440         prog->fieldoffsets.ammo_multi_rockets             = PRVM_ED_FindFieldOffset("ammo_multi_rockets");
1441         prog->fieldoffsets.ammo_nails1                    = PRVM_ED_FindFieldOffset("ammo_nails1");
1442         prog->fieldoffsets.ammo_plasma                    = PRVM_ED_FindFieldOffset("ammo_plasma");
1443         prog->fieldoffsets.ammo_rockets1                  = PRVM_ED_FindFieldOffset("ammo_rockets1");
1444         prog->fieldoffsets.ammo_shells1                   = PRVM_ED_FindFieldOffset("ammo_shells1");
1445         prog->fieldoffsets.angles                         = PRVM_ED_FindFieldOffset("angles");
1446         prog->fieldoffsets.button3                        = PRVM_ED_FindFieldOffset("button3");
1447         prog->fieldoffsets.button4                        = PRVM_ED_FindFieldOffset("button4");
1448         prog->fieldoffsets.button5                        = PRVM_ED_FindFieldOffset("button5");
1449         prog->fieldoffsets.button6                        = PRVM_ED_FindFieldOffset("button6");
1450         prog->fieldoffsets.button7                        = PRVM_ED_FindFieldOffset("button7");
1451         prog->fieldoffsets.button8                        = PRVM_ED_FindFieldOffset("button8");
1452         prog->fieldoffsets.button9                        = PRVM_ED_FindFieldOffset("button9");
1453         prog->fieldoffsets.button10                       = PRVM_ED_FindFieldOffset("button10");
1454         prog->fieldoffsets.button11                       = PRVM_ED_FindFieldOffset("button11");
1455         prog->fieldoffsets.button12                       = PRVM_ED_FindFieldOffset("button12");
1456         prog->fieldoffsets.button13                       = PRVM_ED_FindFieldOffset("button13");
1457         prog->fieldoffsets.button14                       = PRVM_ED_FindFieldOffset("button14");
1458         prog->fieldoffsets.button15                       = PRVM_ED_FindFieldOffset("button15");
1459         prog->fieldoffsets.button16                       = PRVM_ED_FindFieldOffset("button16");
1460         prog->fieldoffsets.buttonchat                     = PRVM_ED_FindFieldOffset("buttonchat");
1461         prog->fieldoffsets.buttonuse                      = PRVM_ED_FindFieldOffset("buttonuse");
1462         prog->fieldoffsets.chain                          = PRVM_ED_FindFieldOffset("chain");
1463         prog->fieldoffsets.classname                      = PRVM_ED_FindFieldOffset("classname");
1464         prog->fieldoffsets.clientcamera                   = PRVM_ED_FindFieldOffset("clientcamera");
1465         prog->fieldoffsets.clientcolors                   = PRVM_ED_FindFieldOffset("clientcolors");
1466         prog->fieldoffsets.clientstatus                   = PRVM_ED_FindFieldOffset("clientstatus");
1467         prog->fieldoffsets.color                          = PRVM_ED_FindFieldOffset("color");
1468         prog->fieldoffsets.colormod                       = PRVM_ED_FindFieldOffset("colormod");
1469         prog->fieldoffsets.contentstransition             = PRVM_ED_FindFieldOffset("contentstransition");
1470         prog->fieldoffsets.cursor_active                  = PRVM_ED_FindFieldOffset("cursor_active");
1471         prog->fieldoffsets.cursor_screen                  = PRVM_ED_FindFieldOffset("cursor_screen");
1472         prog->fieldoffsets.cursor_trace_endpos            = PRVM_ED_FindFieldOffset("cursor_trace_endpos");
1473         prog->fieldoffsets.cursor_trace_ent               = PRVM_ED_FindFieldOffset("cursor_trace_ent");
1474         prog->fieldoffsets.cursor_trace_start             = PRVM_ED_FindFieldOffset("cursor_trace_start");
1475         prog->fieldoffsets.customizeentityforclient       = PRVM_ED_FindFieldOffset("customizeentityforclient");
1476         prog->fieldoffsets.dimension_hit                  = PRVM_ED_FindFieldOffset("dimension_hit");
1477         prog->fieldoffsets.dimension_solid                = PRVM_ED_FindFieldOffset("dimension_solid");
1478         prog->fieldoffsets.disableclientprediction        = PRVM_ED_FindFieldOffset("disableclientprediction");
1479         prog->fieldoffsets.dphitcontentsmask              = PRVM_ED_FindFieldOffset("dphitcontentsmask");
1480         prog->fieldoffsets.drawonlytoclient               = PRVM_ED_FindFieldOffset("drawonlytoclient");
1481         prog->fieldoffsets.exteriormodeltoclient          = PRVM_ED_FindFieldOffset("exteriormodeltoclient");
1482         prog->fieldoffsets.fatness                        = PRVM_ED_FindFieldOffset("fatness");
1483         prog->fieldoffsets.forceshader                    = PRVM_ED_FindFieldOffset("forceshader");
1484         prog->fieldoffsets.frame                          = PRVM_ED_FindFieldOffset("frame");
1485         prog->fieldoffsets.frame1time                     = PRVM_ED_FindFieldOffset("frame1time");
1486         prog->fieldoffsets.frame2                         = PRVM_ED_FindFieldOffset("frame2");
1487         prog->fieldoffsets.frame2time                     = PRVM_ED_FindFieldOffset("frame2time");
1488         prog->fieldoffsets.frame3                         = PRVM_ED_FindFieldOffset("frame3");
1489         prog->fieldoffsets.frame3time                     = PRVM_ED_FindFieldOffset("frame3time");
1490         prog->fieldoffsets.frame4                         = PRVM_ED_FindFieldOffset("frame4");
1491         prog->fieldoffsets.frame4time                     = PRVM_ED_FindFieldOffset("frame4time");
1492         prog->fieldoffsets.fullbright                     = PRVM_ED_FindFieldOffset("fullbright");
1493         prog->fieldoffsets.glow_color                     = PRVM_ED_FindFieldOffset("glow_color");
1494         prog->fieldoffsets.glow_size                      = PRVM_ED_FindFieldOffset("glow_size");
1495         prog->fieldoffsets.glow_trail                     = PRVM_ED_FindFieldOffset("glow_trail");
1496         prog->fieldoffsets.gravity                        = PRVM_ED_FindFieldOffset("gravity");
1497         prog->fieldoffsets.groundentity                   = PRVM_ED_FindFieldOffset("groundentity");
1498         prog->fieldoffsets.hull                           = PRVM_ED_FindFieldOffset("hull");
1499         prog->fieldoffsets.ideal_yaw                      = PRVM_ED_FindFieldOffset("ideal_yaw");
1500         prog->fieldoffsets.idealpitch                     = PRVM_ED_FindFieldOffset("idealpitch");
1501         prog->fieldoffsets.items2                         = PRVM_ED_FindFieldOffset("items2");
1502         prog->fieldoffsets.lerpfrac                       = PRVM_ED_FindFieldOffset("lerpfrac");
1503         prog->fieldoffsets.lerpfrac3                      = PRVM_ED_FindFieldOffset("lerpfrac3");
1504         prog->fieldoffsets.lerpfrac4                      = PRVM_ED_FindFieldOffset("lerpfrac4");
1505         prog->fieldoffsets.light_lev                      = PRVM_ED_FindFieldOffset("light_lev");
1506         prog->fieldoffsets.message                        = PRVM_ED_FindFieldOffset("message");
1507         prog->fieldoffsets.modelflags                     = PRVM_ED_FindFieldOffset("modelflags");
1508         prog->fieldoffsets.movement                       = PRVM_ED_FindFieldOffset("movement");
1509         prog->fieldoffsets.movetypesteplandevent          = PRVM_ED_FindFieldOffset("movetypesteplandevent");
1510         prog->fieldoffsets.netaddress                     = PRVM_ED_FindFieldOffset("netaddress");
1511         prog->fieldoffsets.nextthink                      = PRVM_ED_FindFieldOffset("nextthink");
1512         prog->fieldoffsets.nodrawtoclient                 = PRVM_ED_FindFieldOffset("nodrawtoclient");
1513         prog->fieldoffsets.pflags                         = PRVM_ED_FindFieldOffset("pflags");
1514         prog->fieldoffsets.ping                           = PRVM_ED_FindFieldOffset("ping");
1515         prog->fieldoffsets.pitch_speed                    = PRVM_ED_FindFieldOffset("pitch_speed");
1516         prog->fieldoffsets.playermodel                    = PRVM_ED_FindFieldOffset("playermodel");
1517         prog->fieldoffsets.playerskin                     = PRVM_ED_FindFieldOffset("playerskin");
1518         prog->fieldoffsets.pmodel                         = PRVM_ED_FindFieldOffset("pmodel");
1519         prog->fieldoffsets.punchvector                    = PRVM_ED_FindFieldOffset("punchvector");
1520         prog->fieldoffsets.renderamt                      = PRVM_ED_FindFieldOffset("renderamt"); // HalfLife support
1521         prog->fieldoffsets.renderflags                    = PRVM_ED_FindFieldOffset("renderflags");
1522         prog->fieldoffsets.rendermode                     = PRVM_ED_FindFieldOffset("rendermode"); // HalfLife support
1523         prog->fieldoffsets.scale                          = PRVM_ED_FindFieldOffset("scale");
1524         prog->fieldoffsets.shadertime                     = PRVM_ED_FindFieldOffset("shadertime");
1525         prog->fieldoffsets.style                          = PRVM_ED_FindFieldOffset("style");
1526         prog->fieldoffsets.tag_entity                     = PRVM_ED_FindFieldOffset("tag_entity");
1527         prog->fieldoffsets.tag_index                      = PRVM_ED_FindFieldOffset("tag_index");
1528         prog->fieldoffsets.think                          = PRVM_ED_FindFieldOffset("think");
1529         prog->fieldoffsets.viewmodelforclient             = PRVM_ED_FindFieldOffset("viewmodelforclient");
1530         prog->fieldoffsets.viewzoom                       = PRVM_ED_FindFieldOffset("viewzoom");
1531         prog->fieldoffsets.yaw_speed                      = PRVM_ED_FindFieldOffset("yaw_speed");
1532         prog->funcoffsets.CSQC_ConsoleCommand             = PRVM_ED_FindFunctionOffset("CSQC_ConsoleCommand");
1533         prog->funcoffsets.CSQC_Ent_Remove                 = PRVM_ED_FindFunctionOffset("CSQC_Ent_Remove");
1534         prog->funcoffsets.CSQC_Ent_Spawn                  = PRVM_ED_FindFunctionOffset("CSQC_Ent_Spawn");
1535         prog->funcoffsets.CSQC_Ent_Update                 = PRVM_ED_FindFunctionOffset("CSQC_Ent_Update");
1536         prog->funcoffsets.CSQC_Event                      = PRVM_ED_FindFunctionOffset("CSQC_Event");
1537         prog->funcoffsets.CSQC_Event_Sound                = PRVM_ED_FindFunctionOffset("CSQC_Event_Sound");
1538         prog->funcoffsets.CSQC_Init                       = PRVM_ED_FindFunctionOffset("CSQC_Init");
1539         prog->funcoffsets.CSQC_InputEvent                 = PRVM_ED_FindFunctionOffset("CSQC_InputEvent");
1540         prog->funcoffsets.CSQC_Parse_CenterPrint          = PRVM_ED_FindFunctionOffset("CSQC_Parse_CenterPrint");
1541         prog->funcoffsets.CSQC_Parse_Print                = PRVM_ED_FindFunctionOffset("CSQC_Parse_Print");
1542         prog->funcoffsets.CSQC_Parse_StuffCmd             = PRVM_ED_FindFunctionOffset("CSQC_Parse_StuffCmd");
1543         prog->funcoffsets.CSQC_Parse_TempEntity           = PRVM_ED_FindFunctionOffset("CSQC_Parse_TempEntity");
1544         prog->funcoffsets.CSQC_Shutdown                   = PRVM_ED_FindFunctionOffset("CSQC_Shutdown");
1545         prog->funcoffsets.CSQC_UpdateView                 = PRVM_ED_FindFunctionOffset("CSQC_UpdateView");
1546         prog->funcoffsets.EndFrame                        = PRVM_ED_FindFunctionOffset("EndFrame");
1547         prog->funcoffsets.GameCommand                     = PRVM_ED_FindFunctionOffset("GameCommand");
1548         prog->funcoffsets.Gecko_Query                     = PRVM_ED_FindFunctionOffset("Gecko_Query");
1549         prog->funcoffsets.RestoreGame                     = PRVM_ED_FindFunctionOffset("RestoreGame");
1550         prog->funcoffsets.SV_ChangeTeam                   = PRVM_ED_FindFunctionOffset("SV_ChangeTeam");
1551         prog->funcoffsets.SV_OnEntityNoSpawnFunction      = PRVM_ED_FindFunctionOffset("SV_OnEntityNoSpawnFunction");
1552         prog->funcoffsets.SV_OnEntityPostSpawnFunction    = PRVM_ED_FindFunctionOffset("SV_OnEntityPostSpawnFunction");
1553         prog->funcoffsets.SV_OnEntityPreSpawnFunction     = PRVM_ED_FindFunctionOffset("SV_OnEntityPreSpawnFunction");
1554         prog->funcoffsets.SV_ParseClientCommand           = PRVM_ED_FindFunctionOffset("SV_ParseClientCommand");
1555         prog->funcoffsets.SV_PausedTic                    = PRVM_ED_FindFunctionOffset("SV_PausedTic");
1556         prog->funcoffsets.SV_PlayerPhysics                = PRVM_ED_FindFunctionOffset("SV_PlayerPhysics");
1557         prog->funcoffsets.SV_Shutdown                     = PRVM_ED_FindFunctionOffset("SV_Shutdown");
1558         prog->funcoffsets.URI_Get_Callback                = PRVM_ED_FindFunctionOffset("URI_Get_Callback");
1559         prog->globaloffsets.SV_InitCmd                    = PRVM_ED_FindGlobalOffset("SV_InitCmd");
1560         prog->globaloffsets.coop                          = PRVM_ED_FindGlobalOffset("coop");
1561         prog->globaloffsets.deathmatch                    = PRVM_ED_FindGlobalOffset("deathmatch");
1562         prog->globaloffsets.dmg_origin                    = PRVM_ED_FindGlobalOffset("dmg_origin");
1563         prog->globaloffsets.dmg_save                      = PRVM_ED_FindGlobalOffset("dmg_save");
1564         prog->globaloffsets.dmg_take                      = PRVM_ED_FindGlobalOffset("dmg_take");
1565         prog->globaloffsets.drawfont                      = PRVM_ED_FindGlobalOffset("drawfont");
1566         prog->globaloffsets.gettaginfo_forward            = PRVM_ED_FindGlobalOffset("gettaginfo_forward");
1567         prog->globaloffsets.gettaginfo_name               = PRVM_ED_FindGlobalOffset("gettaginfo_name");
1568         prog->globaloffsets.gettaginfo_offset             = PRVM_ED_FindGlobalOffset("gettaginfo_offset");
1569         prog->globaloffsets.gettaginfo_parent             = PRVM_ED_FindGlobalOffset("gettaginfo_parent");
1570         prog->globaloffsets.gettaginfo_right              = PRVM_ED_FindGlobalOffset("gettaginfo_right");
1571         prog->globaloffsets.gettaginfo_up                 = PRVM_ED_FindGlobalOffset("gettaginfo_up");
1572         prog->globaloffsets.intermission                  = PRVM_ED_FindGlobalOffset("intermission");
1573         prog->globaloffsets.require_spawnfunc_prefix      = PRVM_ED_FindGlobalOffset("require_spawnfunc_prefix");
1574         prog->globaloffsets.sb_showscores                 = PRVM_ED_FindGlobalOffset("sb_showscores");
1575         prog->globaloffsets.self                          = PRVM_ED_FindGlobalOffset("self");
1576         prog->globaloffsets.serverdeltatime               = PRVM_ED_FindGlobalOffset("serverdeltatime");
1577         prog->globaloffsets.serverprevtime                = PRVM_ED_FindGlobalOffset("serverprevtime");
1578         prog->globaloffsets.servertime                    = PRVM_ED_FindGlobalOffset("servertime");
1579         prog->globaloffsets.time                          = PRVM_ED_FindGlobalOffset("time");
1580         prog->globaloffsets.trace_allsolid                = PRVM_ED_FindGlobalOffset("trace_allsolid");
1581         prog->globaloffsets.trace_dphitcontents           = PRVM_ED_FindGlobalOffset("trace_dphitcontents");
1582         prog->globaloffsets.trace_dphitq3surfaceflags     = PRVM_ED_FindGlobalOffset("trace_dphitq3surfaceflags");
1583         prog->globaloffsets.trace_dphittexturename        = PRVM_ED_FindGlobalOffset("trace_dphittexturename");
1584         prog->globaloffsets.trace_dpstartcontents         = PRVM_ED_FindGlobalOffset("trace_dpstartcontents");
1585         prog->globaloffsets.trace_endpos                  = PRVM_ED_FindGlobalOffset("trace_endpos");
1586         prog->globaloffsets.trace_ent                     = PRVM_ED_FindGlobalOffset("trace_ent");
1587         prog->globaloffsets.trace_fraction                = PRVM_ED_FindGlobalOffset("trace_fraction");
1588         prog->globaloffsets.trace_inopen                  = PRVM_ED_FindGlobalOffset("trace_inopen");
1589         prog->globaloffsets.trace_inwater                 = PRVM_ED_FindGlobalOffset("trace_inwater");
1590         prog->globaloffsets.trace_networkentity           = PRVM_ED_FindGlobalOffset("trace_networkentity");
1591         prog->globaloffsets.trace_plane_dist              = PRVM_ED_FindGlobalOffset("trace_plane_dist");
1592         prog->globaloffsets.trace_plane_normal            = PRVM_ED_FindGlobalOffset("trace_plane_normal");
1593         prog->globaloffsets.trace_startsolid              = PRVM_ED_FindGlobalOffset("trace_startsolid");
1594         prog->globaloffsets.v_forward                     = PRVM_ED_FindGlobalOffset("v_forward");
1595         prog->globaloffsets.v_right                       = PRVM_ED_FindGlobalOffset("v_right");
1596         prog->globaloffsets.v_up                          = PRVM_ED_FindGlobalOffset("v_up");
1597         prog->globaloffsets.view_angles                   = PRVM_ED_FindGlobalOffset("view_angles");
1598         prog->globaloffsets.worldstatus                   = PRVM_ED_FindGlobalOffset("worldstatus");
1599
1600         // menu qc only uses some functions, nothing else
1601         prog->funcoffsets.m_draw                          = PRVM_ED_FindFunctionOffset("m_draw");
1602         prog->funcoffsets.m_init                          = PRVM_ED_FindFunctionOffset("m_init");
1603         prog->funcoffsets.m_keydown                       = PRVM_ED_FindFunctionOffset("m_keydown");
1604         prog->funcoffsets.m_keyup                         = PRVM_ED_FindFunctionOffset("m_keyup");
1605         prog->funcoffsets.m_shutdown                      = PRVM_ED_FindFunctionOffset("m_shutdown");
1606         prog->funcoffsets.m_toggle                        = PRVM_ED_FindFunctionOffset("m_toggle");
1607 }
1608
1609 // not used
1610 /*
1611 typedef struct dpfield_s
1612 {
1613         int type;
1614         char *string;
1615 }
1616 dpfield_t;
1617
1618 #define DPFIELDS (sizeof(dpfields) / sizeof(dpfield_t))
1619
1620 dpfield_t dpfields[] =
1621 {
1622 };
1623 */
1624
1625 /*
1626 ===============
1627 PRVM_ResetProg
1628 ===============
1629 */
1630
1631 void PRVM_LeakTest();
1632 void PRVM_ResetProg()
1633 {
1634         PRVM_LeakTest();
1635         PRVM_GCALL(reset_cmd)();
1636         Mem_FreePool(&prog->progs_mempool);
1637         memset(prog,0,sizeof(prvm_prog_t));
1638         prog->starttime = Sys_DoubleTime();
1639 }
1640
1641 /*
1642 ===============
1643 PRVM_LoadLNO
1644 ===============
1645 */
1646 void PRVM_LoadLNO( const char *progname ) {
1647         fs_offset_t filesize;
1648         unsigned char *lno;
1649         unsigned int *header;
1650         char filename[512];
1651
1652         FS_StripExtension( progname, filename, sizeof( filename ) );
1653         strlcat( filename, ".lno", sizeof( filename ) );
1654
1655         lno = FS_LoadFile( filename, tempmempool, false, &filesize );
1656         if( !lno ) {
1657                 return;
1658         }
1659
1660 /*
1661 <Spike>    SafeWrite (h, &lnotype, sizeof(int));
1662 <Spike>    SafeWrite (h, &version, sizeof(int));
1663 <Spike>    SafeWrite (h, &numglobaldefs, sizeof(int));
1664 <Spike>    SafeWrite (h, &numpr_globals, sizeof(int));
1665 <Spike>    SafeWrite (h, &numfielddefs, sizeof(int));
1666 <Spike>    SafeWrite (h, &numstatements, sizeof(int));
1667 <Spike>    SafeWrite (h, statement_linenums, numstatements*sizeof(int));
1668 */
1669         if( (unsigned) filesize < (6 + prog->progs->numstatements) * sizeof( int ) ) {
1670                 Mem_Free(lno);
1671                 return;
1672         }
1673
1674         header = (unsigned int *) lno;
1675         if( header[ 0 ] == *(unsigned int *) "LNOF" &&
1676                 LittleLong( header[ 1 ] ) == 1 &&
1677                 (unsigned int)LittleLong( header[ 2 ] ) == (unsigned int)prog->progs->numglobaldefs &&
1678                 (unsigned int)LittleLong( header[ 3 ] ) == (unsigned int)prog->progs->numglobals &&
1679                 (unsigned int)LittleLong( header[ 4 ] ) == (unsigned int)prog->progs->numfielddefs &&
1680                 (unsigned int)LittleLong( header[ 5 ] ) == (unsigned int)prog->progs->numstatements )
1681         {
1682                 prog->statement_linenums = (int *)Mem_Alloc(prog->progs_mempool, prog->progs->numstatements * sizeof( int ) );
1683                 memcpy( prog->statement_linenums, (int *) lno + 6, prog->progs->numstatements * sizeof( int ) );
1684         }
1685         Mem_Free( lno );
1686 }
1687
1688 /*
1689 ===============
1690 PRVM_LoadProgs
1691 ===============
1692 */
1693 void PRVM_LoadProgs (const char * filename, int numrequiredfunc, char **required_func, int numrequiredfields, prvm_required_field_t *required_field, int numrequiredglobals, char **required_global)
1694 {
1695         int i;
1696         dstatement_t *st;
1697         ddef_t *infielddefs;
1698         dfunction_t *dfunctions;
1699         fs_offset_t filesize;
1700
1701         if( prog->loaded ) {
1702                 PRVM_ERROR ("PRVM_LoadProgs: there is already a %s program loaded!", PRVM_NAME );
1703         }
1704
1705         prog->progs = (dprograms_t *)FS_LoadFile (filename, prog->progs_mempool, false, &filesize);
1706         if (prog->progs == NULL || filesize < (fs_offset_t)sizeof(dprograms_t))
1707                 PRVM_ERROR ("PRVM_LoadProgs: couldn't load %s for %s", filename, PRVM_NAME);
1708
1709         Con_DPrintf("%s programs occupy %iK.\n", PRVM_NAME, (int)(filesize/1024));
1710
1711         prog->filecrc = CRC_Block((unsigned char *)prog->progs, filesize);
1712
1713 // byte swap the header
1714         for (i = 0;i < (int) sizeof(*prog->progs) / 4;i++)
1715                 ((int *)prog->progs)[i] = LittleLong ( ((int *)prog->progs)[i] );
1716
1717         if (prog->progs->version != PROG_VERSION)
1718                 PRVM_ERROR ("%s: %s has wrong version number (%i should be %i)", PRVM_NAME, filename, prog->progs->version, PROG_VERSION);
1719         if (prog->progs->crc != prog->headercrc && prog->progs->crc != prog->headercrc2)
1720                 PRVM_ERROR ("%s: %s system vars have been modified (CRC of progs.dat systemvars %i != engine %i), progdefs.h is out of date", PRVM_NAME, filename, prog->progs->crc, prog->headercrc);
1721
1722         //prog->functions = (dfunction_t *)((unsigned char *)progs + progs->ofs_functions);
1723         dfunctions = (dfunction_t *)((unsigned char *)prog->progs + prog->progs->ofs_functions);
1724
1725         if (prog->progs->ofs_strings + prog->progs->numstrings >= (int)filesize)
1726                 PRVM_ERROR ("%s: %s strings go past end of file", PRVM_NAME, filename);
1727         prog->strings = (char *)prog->progs + prog->progs->ofs_strings;
1728         prog->stringssize = prog->progs->numstrings;
1729
1730         prog->numknownstrings = 0;
1731         prog->maxknownstrings = 0;
1732         prog->knownstrings = NULL;
1733         prog->knownstrings_freeable = NULL;
1734
1735         Mem_ExpandableArray_NewArray(&prog->stringbuffersarray, prog->progs_mempool, sizeof(prvm_stringbuffer_t), 64);
1736
1737         prog->globaldefs = (ddef_t *)((unsigned char *)prog->progs + prog->progs->ofs_globaldefs);
1738
1739         // we need to expand the fielddefs list to include all the engine fields,
1740         // so allocate a new place for it
1741         infielddefs = (ddef_t *)((unsigned char *)prog->progs + prog->progs->ofs_fielddefs);
1742         //                                                                                              ( + DPFIELDS                       )
1743         prog->fielddefs = (ddef_t *)Mem_Alloc(prog->progs_mempool, (prog->progs->numfielddefs + numrequiredfields) * sizeof(ddef_t));
1744
1745         prog->statements = (dstatement_t *)((unsigned char *)prog->progs + prog->progs->ofs_statements);
1746
1747         prog->statement_profile = (double *)Mem_Alloc(prog->progs_mempool, prog->progs->numstatements * sizeof(*prog->statement_profile));
1748
1749         // moved edict_size calculation down below field adding code
1750
1751         //pr_global_struct = (globalvars_t *)((unsigned char *)progs + progs->ofs_globals);
1752         prog->globals.generic = (float *)((unsigned char *)prog->progs + prog->progs->ofs_globals);
1753
1754 // byte swap the lumps
1755         for (i=0 ; i<prog->progs->numstatements ; i++)
1756         {
1757                 prog->statements[i].op = LittleShort(prog->statements[i].op);
1758                 prog->statements[i].a = LittleShort(prog->statements[i].a);
1759                 prog->statements[i].b = LittleShort(prog->statements[i].b);
1760                 prog->statements[i].c = LittleShort(prog->statements[i].c);
1761         }
1762
1763         prog->functions = (mfunction_t *)Mem_Alloc(prog->progs_mempool, sizeof(mfunction_t) * prog->progs->numfunctions);
1764         for (i = 0;i < prog->progs->numfunctions;i++)
1765         {
1766                 prog->functions[i].first_statement = LittleLong (dfunctions[i].first_statement);
1767                 prog->functions[i].parm_start = LittleLong (dfunctions[i].parm_start);
1768                 prog->functions[i].s_name = LittleLong (dfunctions[i].s_name);
1769                 prog->functions[i].s_file = LittleLong (dfunctions[i].s_file);
1770                 prog->functions[i].numparms = LittleLong (dfunctions[i].numparms);
1771                 prog->functions[i].locals = LittleLong (dfunctions[i].locals);
1772                 memcpy(prog->functions[i].parm_size, dfunctions[i].parm_size, sizeof(dfunctions[i].parm_size));
1773         }
1774
1775         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
1776         {
1777                 prog->globaldefs[i].type = LittleShort (prog->globaldefs[i].type);
1778                 prog->globaldefs[i].ofs = LittleShort (prog->globaldefs[i].ofs);
1779                 prog->globaldefs[i].s_name = LittleLong (prog->globaldefs[i].s_name);
1780         }
1781
1782         // copy the progs fields to the new fields list
1783         for (i = 0;i < prog->progs->numfielddefs;i++)
1784         {
1785                 prog->fielddefs[i].type = LittleShort (infielddefs[i].type);
1786                 if (prog->fielddefs[i].type & DEF_SAVEGLOBAL)
1787                         PRVM_ERROR ("PRVM_LoadProgs: prog->fielddefs[i].type & DEF_SAVEGLOBAL in %s", PRVM_NAME);
1788                 prog->fielddefs[i].ofs = LittleShort (infielddefs[i].ofs);
1789                 prog->fielddefs[i].s_name = LittleLong (infielddefs[i].s_name);
1790         }
1791
1792         // append the required fields
1793         for (i = 0;i < (int) numrequiredfields;i++)
1794         {
1795                 prog->fielddefs[prog->progs->numfielddefs].type = required_field[i].type;
1796                 prog->fielddefs[prog->progs->numfielddefs].ofs = prog->progs->entityfields;
1797                 prog->fielddefs[prog->progs->numfielddefs].s_name = PRVM_SetEngineString(required_field[i].name);
1798                 if (prog->fielddefs[prog->progs->numfielddefs].type == ev_vector)
1799                         prog->progs->entityfields += 3;
1800                 else
1801                         prog->progs->entityfields++;
1802                 prog->progs->numfielddefs++;
1803         }
1804
1805         // check required functions
1806         for(i=0 ; i < numrequiredfunc ; i++)
1807                 if(PRVM_ED_FindFunction(required_func[i]) == 0)
1808                         PRVM_ERROR("%s: %s not found in %s",PRVM_NAME, required_func[i], filename);
1809
1810         // check required globals
1811         for(i=0 ; i < numrequiredglobals ; i++)
1812                 if(PRVM_ED_FindGlobal(required_global[i]) == 0)
1813                         PRVM_ERROR("%s: %s not found in %s",PRVM_NAME, required_global[i], filename);
1814
1815         for (i=0 ; i<prog->progs->numglobals ; i++)
1816                 ((int *)prog->globals.generic)[i] = LittleLong (((int *)prog->globals.generic)[i]);
1817
1818         // moved edict_size calculation down here, below field adding code
1819         // LordHavoc: this no longer includes the prvm_edict_t header
1820         prog->edict_size = prog->progs->entityfields * 4;
1821         prog->edictareasize = prog->edict_size * prog->limit_edicts;
1822
1823         // LordHavoc: bounds check anything static
1824         for (i = 0,st = prog->statements;i < prog->progs->numstatements;i++,st++)
1825         {
1826                 switch (st->op)
1827                 {
1828                 case OP_IF:
1829                 case OP_IFNOT:
1830                         if ((unsigned short) st->a >= prog->progs->numglobals || st->b + i < 0 || st->b + i >= prog->progs->numstatements)
1831                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds IF/IFNOT (statement %d) in %s", i, PRVM_NAME);
1832                         break;
1833                 case OP_GOTO:
1834                         if (st->a + i < 0 || st->a + i >= prog->progs->numstatements)
1835                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds GOTO (statement %d) in %s", i, PRVM_NAME);
1836                         break;
1837                 // global global global
1838                 case OP_ADD_F:
1839                 case OP_ADD_V:
1840                 case OP_SUB_F:
1841                 case OP_SUB_V:
1842                 case OP_MUL_F:
1843                 case OP_MUL_V:
1844                 case OP_MUL_FV:
1845                 case OP_MUL_VF:
1846                 case OP_DIV_F:
1847                 case OP_BITAND:
1848                 case OP_BITOR:
1849                 case OP_GE:
1850                 case OP_LE:
1851                 case OP_GT:
1852                 case OP_LT:
1853                 case OP_AND:
1854                 case OP_OR:
1855                 case OP_EQ_F:
1856                 case OP_EQ_V:
1857                 case OP_EQ_S:
1858                 case OP_EQ_E:
1859                 case OP_EQ_FNC:
1860                 case OP_NE_F:
1861                 case OP_NE_V:
1862                 case OP_NE_S:
1863                 case OP_NE_E:
1864                 case OP_NE_FNC:
1865                 case OP_ADDRESS:
1866                 case OP_LOAD_F:
1867                 case OP_LOAD_FLD:
1868                 case OP_LOAD_ENT:
1869                 case OP_LOAD_S:
1870                 case OP_LOAD_FNC:
1871                 case OP_LOAD_V:
1872                         if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->b >= prog->progs->numglobals || (unsigned short) st->c >= prog->progs->numglobals)
1873                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d)", i);
1874                         break;
1875                 // global none global
1876                 case OP_NOT_F:
1877                 case OP_NOT_V:
1878                 case OP_NOT_S:
1879                 case OP_NOT_FNC:
1880                 case OP_NOT_ENT:
1881                         if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->c >= prog->progs->numglobals)
1882                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s", i, PRVM_NAME);
1883                         break;
1884                 // 2 globals
1885                 case OP_STOREP_F:
1886                 case OP_STOREP_ENT:
1887                 case OP_STOREP_FLD:
1888                 case OP_STOREP_S:
1889                 case OP_STOREP_FNC:
1890                 case OP_STORE_F:
1891                 case OP_STORE_ENT:
1892                 case OP_STORE_FLD:
1893                 case OP_STORE_S:
1894                 case OP_STORE_FNC:
1895                 case OP_STATE:
1896                 case OP_STOREP_V:
1897                 case OP_STORE_V:
1898                         if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->b >= prog->progs->numglobals)
1899                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s", i, PRVM_NAME);
1900                         break;
1901                 // 1 global
1902                 case OP_CALL0:
1903                 case OP_CALL1:
1904                 case OP_CALL2:
1905                 case OP_CALL3:
1906                 case OP_CALL4:
1907                 case OP_CALL5:
1908                 case OP_CALL6:
1909                 case OP_CALL7:
1910                 case OP_CALL8:
1911                 case OP_DONE:
1912                 case OP_RETURN:
1913                         if ((unsigned short) st->a >= prog->progs->numglobals)
1914                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s", i, PRVM_NAME);
1915                         break;
1916                 default:
1917                         Con_DPrintf("PRVM_LoadProgs: unknown opcode %d at statement %d in %s\n", st->op, i, PRVM_NAME);
1918                         break;
1919                 }
1920         }
1921
1922         PRVM_LoadLNO(filename);
1923
1924         PRVM_Init_Exec();
1925
1926         prog->loaded = TRUE;
1927
1928         // set flags & ddef_ts in prog
1929
1930         prog->flag = 0;
1931
1932         PRVM_FindOffsets();
1933
1934         PRVM_GCALL(init_cmd)();
1935
1936         // init mempools
1937         PRVM_MEM_Alloc();
1938 }
1939
1940
1941 void PRVM_Fields_f (void)
1942 {
1943         int i, j, ednum, used, usedamount;
1944         int *counts;
1945         char tempstring[MAX_INPUTLINE], tempstring2[260];
1946         const char *name;
1947         prvm_edict_t *ed;
1948         ddef_t *d;
1949         int *v;
1950
1951         // TODO
1952         /*
1953         if (!sv.active)
1954         {
1955                 Con_Print("no progs loaded\n");
1956                 return;
1957         }
1958         */
1959
1960         if(Cmd_Argc() != 2)
1961         {
1962                 Con_Print("prvm_fields <program name>\n");
1963                 return;
1964         }
1965
1966         PRVM_Begin;
1967         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
1968                 return;
1969
1970         counts = (int *)Mem_Alloc(tempmempool, prog->progs->numfielddefs * sizeof(int));
1971         for (ednum = 0;ednum < prog->max_edicts;ednum++)
1972         {
1973                 ed = PRVM_EDICT_NUM(ednum);
1974                 if (ed->priv.required->free)
1975                         continue;
1976                 for (i = 1;i < prog->progs->numfielddefs;i++)
1977                 {
1978                         d = &prog->fielddefs[i];
1979                         name = PRVM_GetString(d->s_name);
1980                         if (name[strlen(name)-2] == '_')
1981                                 continue;       // skip _x, _y, _z vars
1982                         v = (int *)((char *)ed->fields.vp + d->ofs*4);
1983                         // if the value is still all 0, skip the field
1984                         for (j = 0;j < prvm_type_size[d->type & ~DEF_SAVEGLOBAL];j++)
1985                         {
1986                                 if (v[j])
1987                                 {
1988                                         counts[i]++;
1989                                         break;
1990                                 }
1991                         }
1992                 }
1993         }
1994         used = 0;
1995         usedamount = 0;
1996         tempstring[0] = 0;
1997         for (i = 0;i < prog->progs->numfielddefs;i++)
1998         {
1999                 d = &prog->fielddefs[i];
2000                 name = PRVM_GetString(d->s_name);
2001                 if (name[strlen(name)-2] == '_')
2002                         continue;       // skip _x, _y, _z vars
2003                 switch(d->type & ~DEF_SAVEGLOBAL)
2004                 {
2005                 case ev_string:
2006                         strlcat(tempstring, "string   ", sizeof(tempstring));
2007                         break;
2008                 case ev_entity:
2009                         strlcat(tempstring, "entity   ", sizeof(tempstring));
2010                         break;
2011                 case ev_function:
2012                         strlcat(tempstring, "function ", sizeof(tempstring));
2013                         break;
2014                 case ev_field:
2015                         strlcat(tempstring, "field    ", sizeof(tempstring));
2016                         break;
2017                 case ev_void:
2018                         strlcat(tempstring, "void     ", sizeof(tempstring));
2019                         break;
2020                 case ev_float:
2021                         strlcat(tempstring, "float    ", sizeof(tempstring));
2022                         break;
2023                 case ev_vector:
2024                         strlcat(tempstring, "vector   ", sizeof(tempstring));
2025                         break;
2026                 case ev_pointer:
2027                         strlcat(tempstring, "pointer  ", sizeof(tempstring));
2028                         break;
2029                 default:
2030                         dpsnprintf (tempstring2, sizeof(tempstring2), "bad type %i ", d->type & ~DEF_SAVEGLOBAL);
2031                         strlcat(tempstring, tempstring2, sizeof(tempstring));
2032                         break;
2033                 }
2034                 if (strlen(name) > sizeof(tempstring2)-4)
2035                 {
2036                         memcpy (tempstring2, name, sizeof(tempstring2)-4);
2037                         tempstring2[sizeof(tempstring2)-4] = tempstring2[sizeof(tempstring2)-3] = tempstring2[sizeof(tempstring2)-2] = '.';
2038                         tempstring2[sizeof(tempstring2)-1] = 0;
2039                         name = tempstring2;
2040                 }
2041                 strlcat(tempstring, name, sizeof(tempstring));
2042                 for (j = (int)strlen(name);j < 25;j++)
2043                         strlcat(tempstring, " ", sizeof(tempstring));
2044                 dpsnprintf(tempstring2, sizeof(tempstring2), "%5d", counts[i]);
2045                 strlcat(tempstring, tempstring2, sizeof(tempstring));
2046                 strlcat(tempstring, "\n", sizeof(tempstring));
2047                 if (strlen(tempstring) >= sizeof(tempstring)/2)
2048                 {
2049                         Con_Print(tempstring);
2050                         tempstring[0] = 0;
2051                 }
2052                 if (counts[i])
2053                 {
2054                         used++;
2055                         usedamount += prvm_type_size[d->type & ~DEF_SAVEGLOBAL];
2056                 }
2057         }
2058         Mem_Free(counts);
2059         Con_Printf("%s: %i entity fields (%i in use), totalling %i bytes per edict (%i in use), %i edicts allocated, %i bytes total spent on edict fields (%i needed)\n", PRVM_NAME, prog->progs->entityfields, used, prog->progs->entityfields * 4, usedamount * 4, prog->max_edicts, prog->progs->entityfields * 4 * prog->max_edicts, usedamount * 4 * prog->max_edicts);
2060
2061         PRVM_End;
2062 }
2063
2064 void PRVM_Globals_f (void)
2065 {
2066         int i;
2067         const char *wildcard;
2068         int numculled;
2069                 numculled = 0;
2070         // TODO
2071         /*if (!sv.active)
2072         {
2073                 Con_Print("no progs loaded\n");
2074                 return;
2075         }*/
2076         if(Cmd_Argc () < 2 || Cmd_Argc() > 3)
2077         {
2078                 Con_Print("prvm_globals <program name> <optional name wildcard>\n");
2079                 return;
2080         }
2081
2082         PRVM_Begin;
2083         if(!PRVM_SetProgFromString (Cmd_Argv (1)))
2084                 return;
2085
2086         if( Cmd_Argc() == 3)
2087                 wildcard = Cmd_Argv(2);
2088         else
2089                 wildcard = NULL;
2090
2091         Con_Printf("%s :", PRVM_NAME);
2092
2093         for (i = 0;i < prog->progs->numglobaldefs;i++)
2094         {
2095                 if(wildcard)
2096                         if( !matchpattern( PRVM_GetString(prog->globaldefs[i].s_name), wildcard, 1) )
2097                         {
2098                                 numculled++;
2099                                 continue;
2100                         }
2101                 Con_Printf("%s\n", PRVM_GetString(prog->globaldefs[i].s_name));
2102         }
2103         Con_Printf("%i global variables, %i culled, totalling %i bytes\n", prog->progs->numglobals, numculled, prog->progs->numglobals * 4);
2104
2105         PRVM_End;
2106 }
2107
2108 /*
2109 ===============
2110 PRVM_Global
2111 ===============
2112 */
2113 void PRVM_Global_f(void)
2114 {
2115         ddef_t *global;
2116         if( Cmd_Argc() != 3 ) {
2117                 Con_Printf( "prvm_global <program name> <global name>\n" );
2118                 return;
2119         }
2120
2121         PRVM_Begin;
2122         if( !PRVM_SetProgFromString( Cmd_Argv(1) ) )
2123                 return;
2124
2125         global = PRVM_ED_FindGlobal( Cmd_Argv(2) );
2126         if( !global )
2127                 Con_Printf( "No global '%s' in %s!\n", Cmd_Argv(2), Cmd_Argv(1) );
2128         else
2129                 Con_Printf( "%s: %s\n", Cmd_Argv(2), PRVM_ValueString( (etype_t)global->type, (prvm_eval_t *) &prog->globals.generic[ global->ofs ] ) );
2130         PRVM_End;
2131 }
2132
2133 /*
2134 ===============
2135 PRVM_GlobalSet
2136 ===============
2137 */
2138 void PRVM_GlobalSet_f(void)
2139 {
2140         ddef_t *global;
2141         if( Cmd_Argc() != 4 ) {
2142                 Con_Printf( "prvm_globalset <program name> <global name> <value>\n" );
2143                 return;
2144         }
2145
2146         PRVM_Begin;
2147         if( !PRVM_SetProgFromString( Cmd_Argv(1) ) )
2148                 return;
2149
2150         global = PRVM_ED_FindGlobal( Cmd_Argv(2) );
2151         if( !global )
2152                 Con_Printf( "No global '%s' in %s!\n", Cmd_Argv(2), Cmd_Argv(1) );
2153         else
2154                 PRVM_ED_ParseEpair( NULL, global, Cmd_Argv(3), true );
2155         PRVM_End;
2156 }
2157
2158 /*
2159 ===============
2160 PRVM_Init
2161 ===============
2162 */
2163 void PRVM_Init (void)
2164 {
2165         Cmd_AddCommand ("prvm_edict", PRVM_ED_PrintEdict_f, "print all data about an entity number in the selected VM (server, client, menu)");
2166         Cmd_AddCommand ("prvm_edicts", PRVM_ED_PrintEdicts_f, "prints all data about all entities in the selected VM (server, client, menu)");
2167         Cmd_AddCommand ("prvm_edictcount", PRVM_ED_Count_f, "prints number of active entities in the selected VM (server, client, menu)");
2168         Cmd_AddCommand ("prvm_profile", PRVM_Profile_f, "prints execution statistics about the most used QuakeC functions in the selected VM (server, client, menu)");
2169         Cmd_AddCommand ("prvm_callprofile", PRVM_CallProfile_f, "prints execution statistics about the most time consuming QuakeC calls from the engine in the selected VM (server, client, menu)");
2170         Cmd_AddCommand ("prvm_fields", PRVM_Fields_f, "prints usage statistics on properties (how many entities have non-zero values) in the selected VM (server, client, menu)");
2171         Cmd_AddCommand ("prvm_globals", PRVM_Globals_f, "prints all global variables in the selected VM (server, client, menu)");
2172         Cmd_AddCommand ("prvm_global", PRVM_Global_f, "prints value of a specified global variable in the selected VM (server, client, menu)");
2173         Cmd_AddCommand ("prvm_globalset", PRVM_GlobalSet_f, "sets value of a specified global variable in the selected VM (server, client, menu)");
2174         Cmd_AddCommand ("prvm_edictset", PRVM_ED_EdictSet_f, "changes value of a specified property of a specified entity in the selected VM (server, client, menu)");
2175         Cmd_AddCommand ("prvm_printfunction", PRVM_PrintFunction_f, "prints a disassembly (QuakeC instructions) of the specified function in the selected VM (server, client, menu)");
2176         Cmd_AddCommand ("cl_cmd", PRVM_GameCommand_Client_f, "calls the client QC function GameCommand with the supplied string as argument");
2177         Cmd_AddCommand ("menu_cmd", PRVM_GameCommand_Menu_f, "calls the menu QC function GameCommand with the supplied string as argument");
2178         Cmd_AddCommand ("sv_cmd", PRVM_GameCommand_Server_f, "calls the server QC function GameCommand with the supplied string as argument");
2179
2180         // COMMANDLINEOPTION: PRVM: -noboundscheck disables the bounds checks (security hole if CSQC is in use!)
2181         prvm_boundscheck = !COM_CheckParm("-noboundscheck");
2182
2183         Cvar_RegisterVariable (&prvm_traceqc);
2184         Cvar_RegisterVariable (&prvm_statementprofiling);
2185         Cvar_RegisterVariable (&prvm_backtraceforwarnings);
2186         Cvar_RegisterVariable (&prvm_leaktest);
2187         Cvar_RegisterVariable (&prvm_leaktest_ignore_classnames);
2188         Cvar_RegisterVariable (&prvm_errordump);
2189
2190         // COMMANDLINEOPTION: PRVM: -norunaway disables the runaway loop check (it might be impossible to exit DarkPlaces if used!)
2191         prvm_runawaycheck = !COM_CheckParm("-norunaway");
2192
2193         //VM_Cmd_Init();
2194 }
2195
2196 /*
2197 ===============
2198 PRVM_InitProg
2199 ===============
2200 */
2201 void PRVM_InitProg(int prognr)
2202 {
2203         if(prognr < 0 || prognr >= PRVM_MAXPROGS)
2204                 Sys_Error("PRVM_InitProg: Invalid program number %i",prognr);
2205
2206         prog = &prog_list[prognr];
2207
2208         if(prog->loaded)
2209                 PRVM_ResetProg();
2210
2211         memset(prog, 0, sizeof(prvm_prog_t));
2212         prog->starttime = Sys_DoubleTime();
2213
2214         prog->error_cmd = Host_Error;
2215         prog->leaktest_active = prvm_leaktest.integer;
2216 }
2217
2218 int PRVM_GetProgNr()
2219 {
2220         return prog - prog_list;
2221 }
2222
2223 void *_PRVM_Alloc(size_t buffersize, const char *filename, int fileline)
2224 {
2225         return _Mem_Alloc(prog->progs_mempool, buffersize, filename, fileline);
2226 }
2227
2228 void _PRVM_Free(void *buffer, const char *filename, int fileline)
2229 {
2230         _Mem_Free(buffer, filename, fileline);
2231 }
2232
2233 void _PRVM_FreeAll(const char *filename, int fileline)
2234 {
2235         prog->progs = NULL;
2236         prog->fielddefs = NULL;
2237         prog->functions = NULL;
2238         _Mem_EmptyPool(prog->progs_mempool, filename, fileline);
2239 }
2240
2241 // LordHavoc: turned PRVM_EDICT_NUM into a #define for speed reasons
2242 unsigned int PRVM_EDICT_NUM_ERROR(unsigned int n, char *filename, int fileline)
2243 {
2244         PRVM_ERROR ("PRVM_EDICT_NUM: %s: bad number %i (called at %s:%i)", PRVM_NAME, n, filename, fileline);
2245         return 0;
2246 }
2247
2248 /*
2249 int NUM_FOR_EDICT_ERROR(prvm_edict_t *e)
2250 {
2251         PRVM_ERROR ("PRVM_NUM_FOR_EDICT: bad pointer %p (world is %p, entity number would be %i)", e, prog->edicts, e - prog->edicts);
2252         return 0;
2253 }
2254
2255 int PRVM_NUM_FOR_EDICT(prvm_edict_t *e)
2256 {
2257         int n;
2258         n = e - prog->edicts;
2259         if ((unsigned int)n >= prog->limit_edicts)
2260                 Host_Error ("PRVM_NUM_FOR_EDICT: bad pointer");
2261         return n;
2262 }
2263
2264 //int NoCrash_NUM_FOR_EDICT(prvm_edict_t *e)
2265 //{
2266 //      return e - prog->edicts;
2267 //}
2268
2269 //#define       PRVM_EDICT_TO_PROG(e) ((unsigned char *)(((prvm_edict_t *)e)->v) - (unsigned char *)(prog->edictsfields))
2270 //#define PRVM_PROG_TO_EDICT(e) (prog->edicts + ((e) / (progs->entityfields * 4)))
2271 int PRVM_EDICT_TO_PROG(prvm_edict_t *e)
2272 {
2273         int n;
2274         n = e - prog->edicts;
2275         if ((unsigned int)n >= (unsigned int)prog->max_edicts)
2276                 Host_Error("PRVM_EDICT_TO_PROG: invalid edict %8p (number %i compared to world at %8p)", e, n, prog->edicts);
2277         return n;// EXPERIMENTAL
2278         //return (unsigned char *)e->v - (unsigned char *)prog->edictsfields;
2279 }
2280 prvm_edict_t *PRVM_PROG_TO_EDICT(int n)
2281 {
2282         if ((unsigned int)n >= (unsigned int)prog->max_edicts)
2283                 Host_Error("PRVM_PROG_TO_EDICT: invalid edict number %i", n);
2284         return prog->edicts + n; // EXPERIMENTAL
2285         //return prog->edicts + ((n) / (progs->entityfields * 4));
2286 }
2287 */
2288
2289
2290 sizebuf_t vm_tempstringsbuf;
2291
2292 const char *PRVM_GetString(int num)
2293 {
2294         if (num >= 0)
2295         {
2296                 if (num < prog->stringssize)
2297                         return prog->strings + num;
2298                 else
2299 #if 1
2300                 if (num <= prog->stringssize + vm_tempstringsbuf.maxsize)
2301                 {
2302                         num -= prog->stringssize;
2303                         if (num < vm_tempstringsbuf.cursize)
2304                                 return (char *)vm_tempstringsbuf.data + num;
2305                         else
2306                         {
2307                                 VM_Warning("PRVM_GetString: Invalid temp-string offset (%i >= %i vm_tempstringsbuf.cursize)\n", num, vm_tempstringsbuf.cursize);
2308                                 return "";
2309                         }
2310                 }
2311                 else
2312 #endif
2313                 {
2314                         VM_Warning("PRVM_GetString: Invalid constant-string offset (%i >= %i prog->stringssize)\n", num, prog->stringssize);
2315                         return "";
2316                 }
2317         }
2318         else
2319         {
2320                 num = -1 - num;
2321 #if 0
2322                 if (num >= (1<<30))
2323                 {
2324                         // special range reserved for tempstrings
2325                         num -= (1<<30);
2326                         if (num < vm_tempstringsbuf.cursize)
2327                                 return (char *)vm_tempstringsbuf.data + num;
2328                         else
2329                         {
2330                                 VM_Warning("PRVM_GetString: Invalid temp-string offset (%i >= %i vm_tempstringsbuf.cursize)\n", num, vm_tempstringsbuf.cursize);
2331                                 return "";
2332                         }
2333                 }
2334                 else
2335 #endif
2336                 if (num < prog->numknownstrings)
2337                 {
2338                         if (!prog->knownstrings[num])
2339                                 VM_Warning("PRVM_GetString: Invalid zone-string offset (%i has been freed)\n", num);
2340                         return prog->knownstrings[num];
2341                 }
2342                 else
2343                 {
2344                         VM_Warning("PRVM_GetString: Invalid zone-string offset (%i >= %i)\n", num, prog->numknownstrings);
2345                         return "";
2346                 }
2347         }
2348 }
2349
2350 int PRVM_SetEngineString(const char *s)
2351 {
2352         int i;
2353         if (!s)
2354                 return 0;
2355         if (s >= prog->strings && s <= prog->strings + prog->stringssize)
2356                 PRVM_ERROR("PRVM_SetEngineString: s in prog->strings area");
2357         // if it's in the tempstrings area, use a reserved range
2358         // (otherwise we'd get millions of useless string offsets cluttering the database)
2359         if (s >= (char *)vm_tempstringsbuf.data && s < (char *)vm_tempstringsbuf.data + vm_tempstringsbuf.maxsize)
2360 #if 1
2361                 return prog->stringssize + (s - (char *)vm_tempstringsbuf.data);
2362 #else
2363                 return -1 - ((1<<30) + (s - (char *)vm_tempstringsbuf.data));
2364 #endif
2365         // see if it's a known string address
2366         for (i = 0;i < prog->numknownstrings;i++)
2367                 if (prog->knownstrings[i] == s)
2368                         return -1 - i;
2369         // new unknown engine string
2370         if (developer.integer >= 200)
2371                 Con_Printf("new engine string %p = \"%s\"\n", s, s);
2372         for (i = prog->firstfreeknownstring;i < prog->numknownstrings;i++)
2373                 if (!prog->knownstrings[i])
2374                         break;
2375         if (i >= prog->numknownstrings)
2376         {
2377                 if (i >= prog->maxknownstrings)
2378                 {
2379                         const char **oldstrings = prog->knownstrings;
2380                         const unsigned char *oldstrings_freeable = prog->knownstrings_freeable;
2381                         const char **oldstrings_origin = prog->knownstrings_origin;
2382                         prog->maxknownstrings += 128;
2383                         prog->knownstrings = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
2384                         prog->knownstrings_freeable = (unsigned char *)PRVM_Alloc(prog->maxknownstrings * sizeof(unsigned char));
2385                         if(prog->leaktest_active)
2386                                 prog->knownstrings_origin = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
2387                         if (prog->numknownstrings)
2388                         {
2389                                 memcpy((char **)prog->knownstrings, oldstrings, prog->numknownstrings * sizeof(char *));
2390                                 memcpy((char **)prog->knownstrings_freeable, oldstrings_freeable, prog->numknownstrings * sizeof(unsigned char));
2391                                 if(prog->leaktest_active)
2392                                         memcpy((char **)prog->knownstrings_origin, oldstrings_origin, prog->numknownstrings * sizeof(char *));
2393                         }
2394                 }
2395                 prog->numknownstrings++;
2396         }
2397         prog->firstfreeknownstring = i + 1;
2398         prog->knownstrings[i] = s;
2399         prog->knownstrings_freeable[i] = false;
2400         if(prog->leaktest_active)
2401                 prog->knownstrings_origin[i] = NULL;
2402         return -1 - i;
2403 }
2404
2405 // temp string handling
2406
2407 // all tempstrings go into this buffer consecutively, and it is reset
2408 // whenever PRVM_ExecuteProgram returns to the engine
2409 // (technically each PRVM_ExecuteProgram call saves the cursize value and
2410 //  restores it on return, so multiple recursive calls can share the same
2411 //  buffer)
2412 // the buffer size is automatically grown as needed
2413
2414 int PRVM_SetTempString(const char *s)
2415 {
2416         int size;
2417         char *t;
2418         if (!s)
2419                 return 0;
2420         size = (int)strlen(s) + 1;
2421         if (developer.integer >= 300)
2422                 Con_Printf("PRVM_SetTempString: cursize %i, size %i\n", vm_tempstringsbuf.cursize, size);
2423         if (vm_tempstringsbuf.maxsize < vm_tempstringsbuf.cursize + size)
2424         {
2425                 sizebuf_t old = vm_tempstringsbuf;
2426                 if (vm_tempstringsbuf.cursize + size >= 1<<28)
2427                         PRVM_ERROR("PRVM_SetTempString: ran out of tempstring memory!  (refusing to grow tempstring buffer over 256MB, cursize %i, size %i)\n", vm_tempstringsbuf.cursize, size);
2428                 vm_tempstringsbuf.maxsize = max(vm_tempstringsbuf.maxsize, 65536);
2429                 while (vm_tempstringsbuf.maxsize < vm_tempstringsbuf.cursize + size)
2430                         vm_tempstringsbuf.maxsize *= 2;
2431                 if (vm_tempstringsbuf.maxsize != old.maxsize || vm_tempstringsbuf.data == NULL)
2432                 {
2433                         if (developer.integer >= 100)
2434                                 Con_Printf("PRVM_SetTempString: enlarging tempstrings buffer (%iKB -> %iKB)\n", old.maxsize/1024, vm_tempstringsbuf.maxsize/1024);
2435                         vm_tempstringsbuf.data = (unsigned char *) Mem_Alloc(sv_mempool, vm_tempstringsbuf.maxsize);
2436                         if (old.cursize)
2437                                 memcpy(vm_tempstringsbuf.data, old.data, old.cursize);
2438                         if (old.data)
2439                                 Mem_Free(old.data);
2440                 }
2441         }
2442         t = (char *)vm_tempstringsbuf.data + vm_tempstringsbuf.cursize;
2443         memcpy(t, s, size);
2444         vm_tempstringsbuf.cursize += size;
2445         return PRVM_SetEngineString(t);
2446 }
2447
2448 int PRVM_AllocString(size_t bufferlength, char **pointer)
2449 {
2450         int i;
2451         if (!bufferlength)
2452                 return 0;
2453         for (i = prog->firstfreeknownstring;i < prog->numknownstrings;i++)
2454                 if (!prog->knownstrings[i])
2455                         break;
2456         if (i >= prog->numknownstrings)
2457         {
2458                 if (i >= prog->maxknownstrings)
2459                 {
2460                         const char **oldstrings = prog->knownstrings;
2461                         const unsigned char *oldstrings_freeable = prog->knownstrings_freeable;
2462                         const char **oldstrings_origin = prog->knownstrings_origin;
2463                         prog->maxknownstrings += 128;
2464                         prog->knownstrings = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
2465                         prog->knownstrings_freeable = (unsigned char *)PRVM_Alloc(prog->maxknownstrings * sizeof(unsigned char));
2466                         if(prog->leaktest_active)
2467                                 prog->knownstrings_origin = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
2468                         if (prog->numknownstrings)
2469                         {
2470                                 memcpy((char **)prog->knownstrings, oldstrings, prog->numknownstrings * sizeof(char *));
2471                                 memcpy((char **)prog->knownstrings_freeable, oldstrings_freeable, prog->numknownstrings * sizeof(unsigned char));
2472                                 if(prog->leaktest_active)
2473                                         memcpy((char **)prog->knownstrings_origin, oldstrings_origin, prog->numknownstrings * sizeof(char *));
2474                         }
2475                         // TODO why not Mem_Free the old ones?
2476                 }
2477                 prog->numknownstrings++;
2478         }
2479         prog->firstfreeknownstring = i + 1;
2480         prog->knownstrings[i] = (char *)PRVM_Alloc(bufferlength);
2481         prog->knownstrings_freeable[i] = true;
2482         if(prog->leaktest_active)
2483                 prog->knownstrings_origin[i] = PRVM_AllocationOrigin();
2484         if (pointer)
2485                 *pointer = (char *)(prog->knownstrings[i]);
2486         return -1 - i;
2487 }
2488
2489 void PRVM_FreeString(int num)
2490 {
2491         if (num == 0)
2492                 PRVM_ERROR("PRVM_FreeString: attempt to free a NULL string");
2493         else if (num >= 0 && num < prog->stringssize)
2494                 PRVM_ERROR("PRVM_FreeString: attempt to free a constant string");
2495         else if (num < 0 && num >= -prog->numknownstrings)
2496         {
2497                 num = -1 - num;
2498                 if (!prog->knownstrings[num])
2499                         PRVM_ERROR("PRVM_FreeString: attempt to free a non-existent or already freed string");
2500                 if (!prog->knownstrings_freeable[num])
2501                         PRVM_ERROR("PRVM_FreeString: attempt to free a string owned by the engine");
2502                 PRVM_Free((char *)prog->knownstrings[num]);
2503                 if(prog->leaktest_active)
2504                         if(prog->knownstrings_origin[num])
2505                                 PRVM_Free((char *)prog->knownstrings_origin[num]);
2506                 prog->knownstrings[num] = NULL;
2507                 prog->knownstrings_freeable[num] = false;
2508                 prog->firstfreeknownstring = min(prog->firstfreeknownstring, num);
2509         }
2510         else
2511                 PRVM_ERROR("PRVM_FreeString: invalid string offset %i", num);
2512 }
2513
2514 static qboolean PRVM_IsStringReferenced(string_t string)
2515 {
2516         int i, j;
2517
2518         for (i = 0;i < prog->progs->numglobaldefs;i++)
2519         {
2520                 ddef_t *d = &prog->globaldefs[i];
2521                 if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_string)
2522                         continue;
2523                 if(string == ((prvm_eval_t *) &prog->globals.generic[d->ofs])->string)
2524                         return true;
2525         }
2526
2527         for(j = 0; j < prog->num_edicts; ++j)
2528         {
2529                 prvm_edict_t *ed = PRVM_EDICT_NUM(j);
2530                 if (ed->priv.required->free)
2531                         continue;
2532                 for (i=0; i<prog->progs->numfielddefs; ++i)
2533                 {
2534                         ddef_t *d = &prog->fielddefs[i];
2535                         if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_string)
2536                                 continue;
2537                         if(string == ((prvm_eval_t *) &((float*)ed->fields.vp)[d->ofs])->string)
2538                                 return true;
2539                 }
2540         }
2541
2542         return false;
2543 }
2544
2545 static qboolean PRVM_IsEdictRelevant(prvm_edict_t *edict)
2546 {
2547         if(PRVM_NUM_FOR_EDICT(edict) <= prog->reserved_edicts)
2548                 return true; // world or clients
2549         switch(prog - prog_list)
2550         {
2551                 case PRVM_SERVERPROG:
2552                         {
2553                                 entvars_t *ev = edict->fields.server;
2554                                 if(ev->solid) // can block other stuff, or is a trigger?
2555                                         return true;
2556                                 if(ev->modelindex) // visible ent?
2557                                         return true;
2558                                 if(ev->effects) // particle effect?
2559                                         return true;
2560                                 if(ev->think) // has a think function?
2561                                         if(ev->nextthink > 0) // that actually will eventually run?
2562                                                 return true;
2563                                 if(ev->takedamage)
2564                                         return true;
2565                                 if(*prvm_leaktest_ignore_classnames.string)
2566                                 {
2567                                         if(strstr(va(" %s ", prvm_leaktest_ignore_classnames.string), va(" %s ", PRVM_GetString(ev->classname))))
2568                                                 return true;
2569                                 }
2570                         }
2571                         break;
2572                 case PRVM_CLIENTPROG:
2573                         {
2574                                 // TODO someone add more stuff here
2575                                 cl_entvars_t *ev = edict->fields.client;
2576                                 if(ev->entnum) // csqc networked
2577                                         return true;
2578                                 if(ev->modelindex) // visible ent?
2579                                         return true;
2580                                 if(ev->effects) // particle effect?
2581                                         return true;
2582                                 if(ev->think) // has a think function?
2583                                         if(ev->nextthink > 0) // that actually will eventually run?
2584                                                 return true;
2585                                 if(*prvm_leaktest_ignore_classnames.string)
2586                                 {
2587                                         if(strstr(va(" %s ", prvm_leaktest_ignore_classnames.string), va(" %s ", PRVM_GetString(ev->classname))))
2588                                                 return true;
2589                                 }
2590                         }
2591                         break;
2592                 case PRVM_MENUPROG:
2593                         // menu prog does not have classnames
2594                         break;
2595         }
2596         return false;
2597 }
2598
2599 static qboolean PRVM_IsEdictReferenced(prvm_edict_t *edict, int mark)
2600 {
2601         int i, j;
2602         int edictnum = PRVM_NUM_FOR_EDICT(edict);
2603         const char *targetname = NULL;
2604
2605         switch(prog - prog_list)
2606         {
2607                 case PRVM_SERVERPROG:
2608                         targetname = PRVM_GetString(edict->fields.server->targetname);
2609                         break;
2610         }
2611
2612         if(targetname)
2613                 if(!*targetname) // ""
2614                         targetname = NULL;
2615
2616         for (i = 0;i < prog->progs->numglobaldefs;i++)
2617         {
2618                 ddef_t *d = &prog->globaldefs[i];
2619                 if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_entity)
2620                         continue;
2621                 if(edictnum == ((prvm_eval_t *) &prog->globals.generic[d->ofs])->edict)
2622                         return true;
2623         }
2624
2625         for(j = 0; j < prog->num_edicts; ++j)
2626         {
2627                 prvm_edict_t *ed = PRVM_EDICT_NUM(j);
2628                 if (ed->priv.required->mark < mark)
2629                         continue;
2630                 if(ed == edict)
2631                         continue;
2632                 if(targetname)
2633                 {
2634                         const char *target = PRVM_GetString(ed->fields.server->target);
2635                         if(target)
2636                                 if(!strcmp(target, targetname))
2637                                         return true;
2638                 }
2639                 for (i=0; i<prog->progs->numfielddefs; ++i)
2640                 {
2641                         ddef_t *d = &prog->fielddefs[i];
2642                         if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_entity)
2643                                 continue;
2644                         if(edictnum == ((prvm_eval_t *) &((float*)ed->fields.vp)[d->ofs])->edict)
2645                                 return true;
2646                 }
2647         }
2648
2649         return false;
2650 }
2651
2652 static void PRVM_MarkReferencedEdicts()
2653 {
2654         int j;
2655         qboolean found_new;
2656         int stage;
2657
2658         for(j = 0; j < prog->num_edicts; ++j)
2659         {
2660                 prvm_edict_t *ed = PRVM_EDICT_NUM(j);
2661                 if(ed->priv.required->free)
2662                         continue;
2663                 ed->priv.required->mark = PRVM_IsEdictRelevant(ed) ? 1 : 0;
2664         }
2665
2666         stage = 1;
2667         do
2668         {
2669                 found_new = false;
2670                 for(j = 0; j < prog->num_edicts; ++j)
2671                 {
2672                         prvm_edict_t *ed = PRVM_EDICT_NUM(j);
2673                         if(ed->priv.required->free)
2674                                 continue;
2675                         if(ed->priv.required->mark)
2676                                 continue;
2677                         if(PRVM_IsEdictReferenced(ed, stage))
2678                         {
2679                                 ed->priv.required->mark = stage + 1;
2680                                 found_new = true;
2681                         }
2682                 }
2683                 ++stage;
2684         }
2685         while(found_new);
2686         Con_DPrintf("leak check used %d stages to find all references\n", stage);
2687 }
2688
2689 void PRVM_LeakTest()
2690 {
2691         int i, j;
2692         qboolean leaked = false;
2693
2694         if(!prog->leaktest_active)
2695                 return;
2696
2697         // 1. Strings
2698         for (i = 0; i < prog->numknownstrings; ++i)
2699         {
2700                 if(prog->knownstrings[i])
2701                 if(prog->knownstrings_freeable[i])
2702                 if(prog->knownstrings_origin[i])
2703                 if(!PRVM_IsStringReferenced(-1 - i))
2704                 {
2705                         Con_Printf("Unreferenced string found!\n  Value: %s\n  Origin: %s\n", prog->knownstrings[i], prog->knownstrings_origin[i]);
2706                         leaked = true;
2707                 }
2708         }
2709
2710         // 2. Edicts
2711         PRVM_MarkReferencedEdicts();
2712         for(j = 0; j < prog->num_edicts; ++j)
2713         {
2714                 prvm_edict_t *ed = PRVM_EDICT_NUM(j);
2715                 if(ed->priv.required->free)
2716                         continue;
2717                 if(!ed->priv.required->mark)
2718                 if(ed->priv.required->allocation_origin)
2719                 {
2720                         Con_Printf("Unreferenced edict found!\n  Allocated at: %s\n", ed->priv.required->allocation_origin);
2721                         PRVM_ED_Print(ed, NULL);
2722                         Con_Print("\n");
2723                         leaked = true;
2724                 }
2725         }
2726
2727         for (i = 0; i < (int)Mem_ExpandableArray_IndexRange(&prog->stringbuffersarray); ++i)
2728         {
2729                 prvm_stringbuffer_t *stringbuffer = (prvm_stringbuffer_t*) Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, i);
2730                 if(stringbuffer)
2731                 if(stringbuffer->origin)
2732                 {
2733                         Con_Printf("Open string buffer handle found!\n  Allocated at: %s\n", stringbuffer->origin);
2734                         leaked = true;
2735                 }
2736         }
2737
2738         for(i = 0; i < PRVM_MAX_OPENFILES; ++i)
2739         {
2740                 if(prog->openfiles[i])
2741                 if(prog->openfiles_origin[i])
2742                 {
2743                         Con_Printf("Open file handle found!\n  Allocated at: %s\n", prog->openfiles_origin[i]);
2744                         leaked = true;
2745                 }
2746         }
2747
2748         for(i = 0; i < PRVM_MAX_OPENSEARCHES; ++i)
2749         {
2750                 if(prog->opensearches[i])
2751                 if(prog->opensearches_origin[i])
2752                 {
2753                         Con_Printf("Open search handle found!\n  Allocated at: %s\n", prog->opensearches_origin[i]);
2754                         leaked = true;
2755                 }
2756         }
2757
2758         if(!leaked)
2759                 Con_Printf("Congratulations. No leaks found.\n");
2760 }