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 // cvar.c -- dynamic variable tracking
21
22 #include "quakedef.h"
23
24 const char *cvar_dummy_description = "custom cvar";
25
26 cvar_t *cvar_vars = NULL;
27 cvar_t *cvar_hashtable[CVAR_HASHSIZE];
28 const char *cvar_null_string = "";
29
30 /*
31 ============
32 Cvar_FindVar
33 ============
34 */
Cvar_FindVar(const char * var_name)35 cvar_t *Cvar_FindVar (const char *var_name)
36 {
37 int hashindex;
38 cvar_t *var;
39
40 // use hash lookup to minimize search time
41 hashindex = CRC_Block((const unsigned char *)var_name, strlen(var_name)) % CVAR_HASHSIZE;
42 for (var = cvar_hashtable[hashindex];var;var = var->nextonhashchain)
43 if (!strcmp (var_name, var->name))
44 return var;
45
46 return NULL;
47 }
48
Cvar_FindVarAfter(const char * prev_var_name,int neededflags)49 cvar_t *Cvar_FindVarAfter (const char *prev_var_name, int neededflags)
50 {
51 cvar_t *var;
52
53 if (*prev_var_name)
54 {
55 var = Cvar_FindVar (prev_var_name);
56 if (!var)
57 return NULL;
58 var = var->next;
59 }
60 else
61 var = cvar_vars;
62
63 // search for the next cvar matching the needed flags
64 while (var)
65 {
66 if ((var->flags & neededflags) || !neededflags)
67 break;
68 var = var->next;
69 }
70 return var;
71 }
72
Cvar_FindVarLink(const char * var_name,cvar_t ** parent,cvar_t *** link,cvar_t ** prev_alpha)73 static cvar_t *Cvar_FindVarLink (const char *var_name, cvar_t **parent, cvar_t ***link, cvar_t **prev_alpha)
74 {
75 int hashindex;
76 cvar_t *var;
77
78 // use hash lookup to minimize search time
79 hashindex = CRC_Block((const unsigned char *)var_name, strlen(var_name));
80 if(parent) *parent = NULL;
81 if(prev_alpha) *prev_alpha = NULL;
82 if(link) *link = &cvar_hashtable[hashindex];
83 for (var = cvar_hashtable[hashindex];var;var = var->nextonhashchain)
84 {
85 if (!strcmp (var_name, var->name))
86 {
87 if(!prev_alpha || var == cvar_vars)
88 return var;
89
90 *prev_alpha = cvar_vars;
91 // if prev_alpha happens to become NULL then there has been some inconsistency elsewhere
92 // already - should I still insert '*prev_alpha &&' in the loop?
93 while((*prev_alpha)->next != var)
94 *prev_alpha = (*prev_alpha)->next;
95 return var;
96 }
97 if(parent) *parent = var;
98 }
99
100 return NULL;
101 }
102
103 /*
104 ============
105 Cvar_VariableValue
106 ============
107 */
Cvar_VariableValueOr(const char * var_name,float def)108 float Cvar_VariableValueOr (const char *var_name, float def)
109 {
110 cvar_t *var;
111
112 var = Cvar_FindVar (var_name);
113 if (!var)
114 return def;
115 return atof (var->string);
116 }
117
Cvar_VariableValue(const char * var_name)118 float Cvar_VariableValue (const char *var_name)
119 {
120 return Cvar_VariableValueOr(var_name, 0);
121 }
122
123 /*
124 ============
125 Cvar_VariableString
126 ============
127 */
Cvar_VariableStringOr(const char * var_name,const char * def)128 const char *Cvar_VariableStringOr (const char *var_name, const char *def)
129 {
130 cvar_t *var;
131
132 var = Cvar_FindVar (var_name);
133 if (!var)
134 return def;
135 return var->string;
136 }
137
Cvar_VariableString(const char * var_name)138 const char *Cvar_VariableString (const char *var_name)
139 {
140 return Cvar_VariableStringOr(var_name, cvar_null_string);
141 }
142
143 /*
144 ============
145 Cvar_VariableDefString
146 ============
147 */
Cvar_VariableDefString(const char * var_name)148 const char *Cvar_VariableDefString (const char *var_name)
149 {
150 cvar_t *var;
151
152 var = Cvar_FindVar (var_name);
153 if (!var)
154 return cvar_null_string;
155 return var->defstring;
156 }
157
158 /*
159 ============
160 Cvar_VariableDescription
161 ============
162 */
Cvar_VariableDescription(const char * var_name)163 const char *Cvar_VariableDescription (const char *var_name)
164 {
165 cvar_t *var;
166
167 var = Cvar_FindVar (var_name);
168 if (!var)
169 return cvar_null_string;
170 return var->description;
171 }
172
173
174 /*
175 ============
176 Cvar_CompleteVariable
177 ============
178 */
Cvar_CompleteVariable(const char * partial)179 const char *Cvar_CompleteVariable (const char *partial)
180 {
181 cvar_t *cvar;
182 size_t len;
183
184 len = strlen(partial);
185
186 if (!len)
187 return NULL;
188
189 // check functions
190 for (cvar=cvar_vars ; cvar ; cvar=cvar->next)
191 if (!strncasecmp (partial,cvar->name, len))
192 return cvar->name;
193
194 return NULL;
195 }
196
197
198 /*
199 CVar_CompleteCountPossible
200
201 New function for tab-completion system
202 Added by EvilTypeGuy
203 Thanks to Fett erich@heintz.com
204
205 */
Cvar_CompleteCountPossible(const char * partial)206 int Cvar_CompleteCountPossible (const char *partial)
207 {
208 cvar_t *cvar;
209 size_t len;
210 int h;
211
212 h = 0;
213 len = strlen(partial);
214
215 if (!len)
216 return 0;
217
218 // Loop through the cvars and count all possible matches
219 for (cvar = cvar_vars; cvar; cvar = cvar->next)
220 if (!strncasecmp(partial, cvar->name, len))
221 h++;
222
223 return h;
224 }
225
226 /*
227 CVar_CompleteBuildList
228
229 New function for tab-completion system
230 Added by EvilTypeGuy
231 Thanks to Fett erich@heintz.com
232 Thanks to taniwha
233
234 */
Cvar_CompleteBuildList(const char * partial)235 const char **Cvar_CompleteBuildList (const char *partial)
236 {
237 const cvar_t *cvar;
238 size_t len = 0;
239 size_t bpos = 0;
240 size_t sizeofbuf = (Cvar_CompleteCountPossible (partial) + 1) * sizeof (const char *);
241 const char **buf;
242
243 len = strlen(partial);
244 buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
245 // Loop through the alias list and print all matches
246 for (cvar = cvar_vars; cvar; cvar = cvar->next)
247 if (!strncasecmp(partial, cvar->name, len))
248 buf[bpos++] = cvar->name;
249
250 buf[bpos] = NULL;
251 return buf;
252 }
253
254 // written by LordHavoc
Cvar_CompleteCvarPrint(const char * partial)255 void Cvar_CompleteCvarPrint (const char *partial)
256 {
257 cvar_t *cvar;
258 size_t len = strlen(partial);
259 // Loop through the command list and print all matches
260 for (cvar = cvar_vars; cvar; cvar = cvar->next)
261 if (!strncasecmp(partial, cvar->name, len))
262 Con_Printf ("^3%s^7 is \"%s\" [\"%s\"] %s\n", cvar->name, cvar->string, cvar->defstring, cvar->description);
263 }
264
265 // check if a cvar is held by some progs
Cvar_IsAutoCvar(cvar_t * var)266 static qboolean Cvar_IsAutoCvar(cvar_t *var)
267 {
268 int i;
269 prvm_prog_t *prog;
270 for (i = 0;i < PRVM_PROG_MAX;i++)
271 {
272 prog = &prvm_prog_list[i];
273 if (prog->loaded && var->globaldefindex[i] >= 0)
274 return true;
275 }
276 return false;
277 }
278
279 // we assume that prog is already set to the target progs
Cvar_UpdateAutoCvar(cvar_t * var)280 static void Cvar_UpdateAutoCvar(cvar_t *var)
281 {
282 int i;
283 int j;
284 const char *s;
285 vec3_t v;
286 prvm_prog_t *prog;
287 for (i = 0;i < PRVM_PROG_MAX;i++)
288 {
289 prog = &prvm_prog_list[i];
290 if (prog->loaded && var->globaldefindex[i] >= 0)
291 {
292 // MUST BE SYNCED WITH prvm_edict.c PRVM_LoadProgs
293 switch(prog->globaldefs[var->globaldefindex[i]].type & ~DEF_SAVEGLOBAL)
294 {
295 case ev_float:
296 PRVM_GLOBALFIELDFLOAT(prog->globaldefs[var->globaldefindex[i]].ofs) = var->value;
297 break;
298 case ev_vector:
299 s = var->string;
300 VectorClear(v);
301 for (j = 0;j < 3;j++)
302 {
303 while (*s && ISWHITESPACE(*s))
304 s++;
305 if (!*s)
306 break;
307 v[j] = atof(s);
308 while (!ISWHITESPACE(*s))
309 s++;
310 if (!*s)
311 break;
312 }
313 VectorCopy(v, PRVM_GLOBALFIELDVECTOR(prog->globaldefs[var->globaldefindex[i]].ofs));
314 break;
315 case ev_string:
316 PRVM_ChangeEngineString(prog, var->globaldefindex_stringno[i], var->string);
317 PRVM_GLOBALFIELDSTRING(prog->globaldefs[var->globaldefindex[i]].ofs) = var->globaldefindex_stringno[i];
318 break;
319 }
320 }
321 }
322 }
323
324 // called after loading a savegame
Cvar_UpdateAllAutoCvars(void)325 void Cvar_UpdateAllAutoCvars(void)
326 {
327 cvar_t *var;
328 for (var = cvar_vars ; var ; var = var->next)
329 Cvar_UpdateAutoCvar(var);
330 }
331
332 /*
333 ============
334 Cvar_Set
335 ============
336 */
337 extern cvar_t sv_disablenotify;
Cvar_SetQuick_Internal(cvar_t * var,const char * value)338 static void Cvar_SetQuick_Internal (cvar_t *var, const char *value)
339 {
340 qboolean changed;
341 size_t valuelen;
342 char vabuf[1024];
343
344 changed = strcmp(var->string, value) != 0;
345 // LordHavoc: don't reallocate when there is no change
346 if (!changed)
347 return;
348
349 // LordHavoc: don't reallocate when the buffer is the same size
350 valuelen = strlen(value);
351 if (!var->string || strlen(var->string) != valuelen)
352 {
353 Z_Free ((char *)var->string); // free the old value string
354
355 var->string = (char *)Z_Malloc (valuelen + 1);
356 }
357 memcpy ((char *)var->string, value, valuelen + 1);
358 var->value = atof (var->string);
359 var->integer = (int) var->value;
360 if ((var->flags & CVAR_NOTIFY) && changed && sv.active && !sv_disablenotify.integer)
361 SV_BroadcastPrintf("\"%s\" changed to \"%s\"\n", var->name, var->string);
362 #if 0
363 // TODO: add infostring support to the server?
364 if ((var->flags & CVAR_SERVERINFO) && changed && sv.active)
365 {
366 InfoString_SetValue(svs.serverinfo, sizeof(svs.serverinfo), var->name, var->string);
367 if (sv.active)
368 {
369 MSG_WriteByte (&sv.reliable_datagram, svc_serverinfostring);
370 MSG_WriteString (&sv.reliable_datagram, var->name);
371 MSG_WriteString (&sv.reliable_datagram, var->string);
372 }
373 }
374 #endif
375 if ((var->flags & CVAR_USERINFO) && cls.state != ca_dedicated)
376 CL_SetInfo(var->name, var->string, true, false, false, false);
377 else if ((var->flags & CVAR_NQUSERINFOHACK) && cls.state != ca_dedicated)
378 {
379 // update the cls.userinfo to have proper values for the
380 // silly nq config variables.
381 //
382 // this is done when these variables are changed rather than at
383 // connect time because if the user or code checks the userinfo and it
384 // holds weird values it may cause confusion...
385 if (!strcmp(var->name, "_cl_color"))
386 {
387 int top = (var->integer >> 4) & 15, bottom = var->integer & 15;
388 CL_SetInfo("topcolor", va(vabuf, sizeof(vabuf), "%i", top), true, false, false, false);
389 CL_SetInfo("bottomcolor", va(vabuf, sizeof(vabuf), "%i", bottom), true, false, false, false);
390 if (cls.protocol != PROTOCOL_QUAKEWORLD && cls.netcon)
391 {
392 MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
393 MSG_WriteString(&cls.netcon->message, va(vabuf, sizeof(vabuf), "color %i %i", top, bottom));
394 }
395 }
396 else if (!strcmp(var->name, "_cl_rate"))
397 CL_SetInfo("rate", va(vabuf, sizeof(vabuf), "%i", var->integer), true, false, false, false);
398 else if (!strcmp(var->name, "_cl_rate_burstsize"))
399 CL_SetInfo("rate_burstsize", va(vabuf, sizeof(vabuf), "%i", var->integer), true, false, false, false);
400 else if (!strcmp(var->name, "_cl_playerskin"))
401 CL_SetInfo("playerskin", var->string, true, false, false, false);
402 else if (!strcmp(var->name, "_cl_playermodel"))
403 CL_SetInfo("playermodel", var->string, true, false, false, false);
404 else if (!strcmp(var->name, "_cl_name"))
405 CL_SetInfo("name", var->string, true, false, false, false);
406 else if (!strcmp(var->name, "rcon_secure"))
407 {
408 // whenever rcon_secure is changed to 0, clear rcon_password for
409 // security reasons (prevents a send-rcon-password-as-plaintext
410 // attack based on NQ protocol session takeover and svc_stufftext)
411 if(var->integer <= 0)
412 Cvar_Set("rcon_password", "");
413 }
414 #ifdef CONFIG_MENU
415 else if (!strcmp(var->name, "net_slist_favorites"))
416 NetConn_UpdateFavorites();
417 #endif
418 }
419
420 Cvar_UpdateAutoCvar(var);
421 }
422
Cvar_SetQuick(cvar_t * var,const char * value)423 void Cvar_SetQuick (cvar_t *var, const char *value)
424 {
425 if (var == NULL)
426 {
427 Con_Print("Cvar_SetQuick: var == NULL\n");
428 return;
429 }
430
431 if (developer_extra.integer)
432 Con_DPrintf("Cvar_SetQuick({\"%s\", \"%s\", %i, \"%s\"}, \"%s\");\n", var->name, var->string, var->flags, var->defstring, value);
433
434 Cvar_SetQuick_Internal(var, value);
435 }
436
Cvar_Set(const char * var_name,const char * value)437 void Cvar_Set (const char *var_name, const char *value)
438 {
439 cvar_t *var;
440 var = Cvar_FindVar (var_name);
441 if (var == NULL)
442 {
443 Con_Printf("Cvar_Set: variable %s not found\n", var_name);
444 return;
445 }
446 Cvar_SetQuick(var, value);
447 }
448
449 /*
450 ============
451 Cvar_SetValue
452 ============
453 */
Cvar_SetValueQuick(cvar_t * var,float value)454 void Cvar_SetValueQuick(cvar_t *var, float value)
455 {
456 char val[MAX_INPUTLINE];
457
458 if ((float)((int)value) == value)
459 dpsnprintf(val, sizeof(val), "%i", (int)value);
460 else
461 dpsnprintf(val, sizeof(val), "%f", value);
462 Cvar_SetQuick(var, val);
463 }
464
Cvar_SetValue(const char * var_name,float value)465 void Cvar_SetValue(const char *var_name, float value)
466 {
467 char val[MAX_INPUTLINE];
468
469 if ((float)((int)value) == value)
470 dpsnprintf(val, sizeof(val), "%i", (int)value);
471 else
472 dpsnprintf(val, sizeof(val), "%f", value);
473 Cvar_Set(var_name, val);
474 }
475
476 /*
477 ============
478 Cvar_RegisterVariable
479
480 Adds a freestanding variable to the variable list.
481 ============
482 */
Cvar_RegisterVariable(cvar_t * variable)483 void Cvar_RegisterVariable (cvar_t *variable)
484 {
485 int hashindex;
486 cvar_t *current, *next, *cvar;
487 char *oldstr;
488 size_t alloclen;
489 int i;
490
491 if (developer_extra.integer)
492 Con_DPrintf("Cvar_RegisterVariable({\"%s\", \"%s\", %i});\n", variable->name, variable->string, variable->flags);
493
494 // first check to see if it has already been defined
495 cvar = Cvar_FindVar (variable->name);
496 if (cvar)
497 {
498 if (cvar->flags & CVAR_ALLOCATED)
499 {
500 if (developer_extra.integer)
501 Con_DPrintf("... replacing existing allocated cvar {\"%s\", \"%s\", %i}\n", cvar->name, cvar->string, cvar->flags);
502 // fixed variables replace allocated ones
503 // (because the engine directly accesses fixed variables)
504 // NOTE: this isn't actually used currently
505 // (all cvars are registered before config parsing)
506 variable->flags |= (cvar->flags & ~CVAR_ALLOCATED);
507 // cvar->string is now owned by variable instead
508 variable->string = cvar->string;
509 variable->defstring = cvar->defstring;
510 variable->value = atof (variable->string);
511 variable->integer = (int) variable->value;
512 // Preserve autocvar status.
513 memcpy(variable->globaldefindex, cvar->globaldefindex, sizeof(variable->globaldefindex));
514 memcpy(variable->globaldefindex_stringno, cvar->globaldefindex_stringno, sizeof(variable->globaldefindex_stringno));
515 // replace cvar with this one...
516 variable->next = cvar->next;
517 if (cvar_vars == cvar)
518 {
519 // head of the list is easy to change
520 cvar_vars = variable;
521 }
522 else
523 {
524 // otherwise find it somewhere in the list
525 for (current = cvar_vars;current->next != cvar;current = current->next)
526 ;
527 current->next = variable;
528 }
529
530 // get rid of old allocated cvar
531 // (but not cvar->string and cvar->defstring, because we kept those)
532 Z_Free((char *)cvar->name);
533 Z_Free(cvar);
534 }
535 else
536 Con_DPrintf("Can't register variable %s, already defined\n", variable->name);
537 return;
538 }
539
540 // check for overlap with a command
541 if (Cmd_Exists (variable->name))
542 {
543 Con_Printf("Cvar_RegisterVariable: %s is a command\n", variable->name);
544 return;
545 }
546
547 // copy the value off, because future sets will Z_Free it
548 oldstr = (char *)variable->string;
549 alloclen = strlen(variable->string) + 1;
550 variable->string = (char *)Z_Malloc (alloclen);
551 memcpy ((char *)variable->string, oldstr, alloclen);
552 variable->defstring = (char *)Z_Malloc (alloclen);
553 memcpy ((char *)variable->defstring, oldstr, alloclen);
554 variable->value = atof (variable->string);
555 variable->integer = (int) variable->value;
556
557 // Mark it as not an autocvar.
558 for (i = 0;i < PRVM_PROG_MAX;i++)
559 variable->globaldefindex[i] = -1;
560
561 // link the variable in
562 // alphanumerical order
563 for( current = NULL, next = cvar_vars ; next && strcmp( next->name, variable->name ) < 0 ; current = next, next = next->next )
564 ;
565 if( current ) {
566 current->next = variable;
567 } else {
568 cvar_vars = variable;
569 }
570 variable->next = next;
571
572 // link to head of list in this hash table index
573 hashindex = CRC_Block((const unsigned char *)variable->name, strlen(variable->name)) % CVAR_HASHSIZE;
574 variable->nextonhashchain = cvar_hashtable[hashindex];
575 cvar_hashtable[hashindex] = variable;
576 }
577
578 /*
579 ============
580 Cvar_Get
581
582 Adds a newly allocated variable to the variable list or sets its value.
583 ============
584 */
Cvar_Get(const char * name,const char * value,int flags,const char * newdescription)585 cvar_t *Cvar_Get (const char *name, const char *value, int flags, const char *newdescription)
586 {
587 int hashindex;
588 cvar_t *current, *next, *cvar;
589 int i;
590
591 if (developer_extra.integer)
592 Con_DPrintf("Cvar_Get(\"%s\", \"%s\", %i);\n", name, value, flags);
593
594 // first check to see if it has already been defined
595 cvar = Cvar_FindVar (name);
596 if (cvar)
597 {
598 cvar->flags |= flags;
599 Cvar_SetQuick_Internal (cvar, value);
600 if(newdescription && (cvar->flags & CVAR_ALLOCATED))
601 {
602 if(cvar->description != cvar_dummy_description)
603 Z_Free((char *)cvar->description);
604
605 if(*newdescription)
606 cvar->description = (char *)Mem_strdup(zonemempool, newdescription);
607 else
608 cvar->description = cvar_dummy_description;
609 }
610 return cvar;
611 }
612
613 // check for pure evil
614 if (!*name)
615 {
616 Con_Printf("Cvar_Get: invalid variable name\n");
617 return NULL;
618 }
619
620 // check for overlap with a command
621 if (Cmd_Exists (name))
622 {
623 Con_Printf("Cvar_Get: %s is a command\n", name);
624 return NULL;
625 }
626
627 // allocate a new cvar, cvar name, and cvar string
628 // TODO: factorize the following code with the one at the end of Cvar_RegisterVariable()
629 // FIXME: these never get Z_Free'd
630 cvar = (cvar_t *)Z_Malloc(sizeof(cvar_t));
631 cvar->flags = flags | CVAR_ALLOCATED;
632 cvar->name = (char *)Mem_strdup(zonemempool, name);
633 cvar->string = (char *)Mem_strdup(zonemempool, value);
634 cvar->defstring = (char *)Mem_strdup(zonemempool, value);
635 cvar->value = atof (cvar->string);
636 cvar->integer = (int) cvar->value;
637
638 if(newdescription && *newdescription)
639 cvar->description = (char *)Mem_strdup(zonemempool, newdescription);
640 else
641 cvar->description = cvar_dummy_description; // actually checked by VM_cvar_type
642
643 // Mark it as not an autocvar.
644 for (i = 0;i < PRVM_PROG_MAX;i++)
645 cvar->globaldefindex[i] = -1;
646
647 // link the variable in
648 // alphanumerical order
649 for( current = NULL, next = cvar_vars ; next && strcmp( next->name, cvar->name ) < 0 ; current = next, next = next->next )
650 ;
651 if( current )
652 current->next = cvar;
653 else
654 cvar_vars = cvar;
655 cvar->next = next;
656
657 // link to head of list in this hash table index
658 hashindex = CRC_Block((const unsigned char *)cvar->name, strlen(cvar->name)) % CVAR_HASHSIZE;
659 cvar->nextonhashchain = cvar_hashtable[hashindex];
660 cvar_hashtable[hashindex] = cvar;
661
662 return cvar;
663 }
664
665
666 /*
667 ============
668 Cvar_Command
669
670 Handles variable inspection and changing from the console
671 ============
672 */
Cvar_Command(void)673 qboolean Cvar_Command (void)
674 {
675 cvar_t *v;
676
677 // check variables
678 v = Cvar_FindVar (Cmd_Argv(0));
679 if (!v)
680 return false;
681
682 // perform a variable print or set
683 if (Cmd_Argc() == 1)
684 {
685 Con_Printf("\"%s\" is \"%s\" [\"%s\"]\n", v->name, ((v->flags & CVAR_PRIVATE) ? "********"/*hunter2*/ : v->string), v->defstring);
686 return true;
687 }
688
689 if (developer_extra.integer)
690 Con_DPrint("Cvar_Command: ");
691
692 if (v->flags & CVAR_READONLY)
693 {
694 Con_Printf("%s is read-only\n", v->name);
695 return true;
696 }
697 Cvar_Set (v->name, Cmd_Argv(1));
698 if (developer_extra.integer)
699 Con_DPrint("\n");
700 return true;
701 }
702
703
Cvar_UnlockDefaults(void)704 void Cvar_UnlockDefaults (void)
705 {
706 cvar_t *var;
707 // unlock the default values of all cvars
708 for (var = cvar_vars ; var ; var = var->next)
709 var->flags &= ~CVAR_DEFAULTSET;
710 }
711
712
Cvar_LockDefaults_f(void)713 void Cvar_LockDefaults_f (void)
714 {
715 cvar_t *var;
716 // lock in the default values of all cvars
717 for (var = cvar_vars ; var ; var = var->next)
718 {
719 if (!(var->flags & CVAR_DEFAULTSET))
720 {
721 size_t alloclen;
722
723 //Con_Printf("locking cvar %s (%s -> %s)\n", var->name, var->string, var->defstring);
724 var->flags |= CVAR_DEFAULTSET;
725 Z_Free((char *)var->defstring);
726 alloclen = strlen(var->string) + 1;
727 var->defstring = (char *)Z_Malloc(alloclen);
728 memcpy((char *)var->defstring, var->string, alloclen);
729 }
730 }
731 }
732
Cvar_SaveInitState(void)733 void Cvar_SaveInitState(void)
734 {
735 cvar_t *c;
736 for (c = cvar_vars;c;c = c->next)
737 {
738 c->initstate = true;
739 c->initflags = c->flags;
740 c->initdefstring = Mem_strdup(zonemempool, c->defstring);
741 c->initstring = Mem_strdup(zonemempool, c->string);
742 c->initvalue = c->value;
743 c->initinteger = c->integer;
744 VectorCopy(c->vector, c->initvector);
745 }
746 }
747
Cvar_RestoreInitState(void)748 void Cvar_RestoreInitState(void)
749 {
750 int hashindex;
751 cvar_t *c, **cp;
752 cvar_t *c2, **cp2;
753 for (cp = &cvar_vars;(c = *cp);)
754 {
755 if (c->initstate)
756 {
757 // restore this cvar, it existed at init
758 if (((c->flags ^ c->initflags) & CVAR_MAXFLAGSVAL)
759 || strcmp(c->defstring ? c->defstring : "", c->initdefstring ? c->initdefstring : "")
760 || strcmp(c->string ? c->string : "", c->initstring ? c->initstring : ""))
761 {
762 Con_DPrintf("Cvar_RestoreInitState: Restoring cvar \"%s\"\n", c->name);
763 if (c->defstring)
764 Z_Free((char *)c->defstring);
765 c->defstring = Mem_strdup(zonemempool, c->initdefstring);
766 if (c->string)
767 Z_Free((char *)c->string);
768 c->string = Mem_strdup(zonemempool, c->initstring);
769 }
770 c->flags = c->initflags;
771 c->value = c->initvalue;
772 c->integer = c->initinteger;
773 VectorCopy(c->initvector, c->vector);
774 cp = &c->next;
775 }
776 else
777 {
778 if (!(c->flags & CVAR_ALLOCATED))
779 {
780 Con_DPrintf("Cvar_RestoreInitState: Unable to destroy cvar \"%s\", it was registered after init!\n", c->name);
781 // In this case, at least reset it to the default.
782 if((c->flags & CVAR_NORESETTODEFAULTS) == 0)
783 Cvar_SetQuick(c, c->defstring);
784 cp = &c->next;
785 continue;
786 }
787 if (Cvar_IsAutoCvar(c))
788 {
789 Con_DPrintf("Cvar_RestoreInitState: Unable to destroy cvar \"%s\", it is an autocvar used by running progs!\n", c->name);
790 // In this case, at least reset it to the default.
791 if((c->flags & CVAR_NORESETTODEFAULTS) == 0)
792 Cvar_SetQuick(c, c->defstring);
793 cp = &c->next;
794 continue;
795 }
796 // remove this cvar, it did not exist at init
797 Con_DPrintf("Cvar_RestoreInitState: Destroying cvar \"%s\"\n", c->name);
798 // unlink struct from hash
799 hashindex = CRC_Block((const unsigned char *)c->name, strlen(c->name)) % CVAR_HASHSIZE;
800 for (cp2 = &cvar_hashtable[hashindex];(c2 = *cp2);)
801 {
802 if (c2 == c)
803 {
804 *cp2 = c2->nextonhashchain;
805 break;
806 }
807 else
808 cp2 = &c2->nextonhashchain;
809 }
810 // unlink struct from main list
811 *cp = c->next;
812 // free strings
813 if (c->defstring)
814 Z_Free((char *)c->defstring);
815 if (c->string)
816 Z_Free((char *)c->string);
817 if (c->description && c->description != cvar_dummy_description)
818 Z_Free((char *)c->description);
819 // free struct
820 Z_Free(c);
821 }
822 }
823 }
824
Cvar_ResetToDefaults_All_f(void)825 void Cvar_ResetToDefaults_All_f (void)
826 {
827 cvar_t *var;
828 // restore the default values of all cvars
829 for (var = cvar_vars ; var ; var = var->next)
830 if((var->flags & CVAR_NORESETTODEFAULTS) == 0)
831 Cvar_SetQuick(var, var->defstring);
832 }
833
834
Cvar_ResetToDefaults_NoSaveOnly_f(void)835 void Cvar_ResetToDefaults_NoSaveOnly_f (void)
836 {
837 cvar_t *var;
838 // restore the default values of all cvars
839 for (var = cvar_vars ; var ; var = var->next)
840 if ((var->flags & (CVAR_NORESETTODEFAULTS | CVAR_SAVE)) == 0)
841 Cvar_SetQuick(var, var->defstring);
842 }
843
844
Cvar_ResetToDefaults_SaveOnly_f(void)845 void Cvar_ResetToDefaults_SaveOnly_f (void)
846 {
847 cvar_t *var;
848 // restore the default values of all cvars
849 for (var = cvar_vars ; var ; var = var->next)
850 if ((var->flags & (CVAR_NORESETTODEFAULTS | CVAR_SAVE)) == CVAR_SAVE)
851 Cvar_SetQuick(var, var->defstring);
852 }
853
854
855 /*
856 ============
857 Cvar_WriteVariables
858
859 Writes lines containing "set variable value" for all variables
860 with the archive flag set to true.
861 ============
862 */
Cvar_WriteVariables(qfile_t * f)863 void Cvar_WriteVariables (qfile_t *f)
864 {
865 cvar_t *var;
866 char buf1[MAX_INPUTLINE], buf2[MAX_INPUTLINE];
867
868 // don't save cvars that match their default value
869 for (var = cvar_vars ; var ; var = var->next)
870 if ((var->flags & CVAR_SAVE) && (strcmp(var->string, var->defstring) || ((var->flags & CVAR_ALLOCATED) && !(var->flags & CVAR_DEFAULTSET))))
871 {
872 Cmd_QuoteString(buf1, sizeof(buf1), var->name, "\"\\$", false);
873 Cmd_QuoteString(buf2, sizeof(buf2), var->string, "\"\\$", false);
874 FS_Printf(f, "%s\"%s\" \"%s\"\n", var->flags & CVAR_ALLOCATED ? "seta " : "", buf1, buf2);
875 }
876 }
877
878
879 // Added by EvilTypeGuy eviltypeguy@qeradiant.com
880 // 2000-01-09 CvarList command By Matthias "Maddes" Buecher, http://www.inside3d.com/qip/
881 /*
882 =========
883 Cvar_List
884 =========
885 */
Cvar_List_f(void)886 void Cvar_List_f (void)
887 {
888 cvar_t *cvar;
889 const char *partial;
890 size_t len;
891 int count;
892 qboolean ispattern;
893
894 if (Cmd_Argc() > 1)
895 {
896 partial = Cmd_Argv (1);
897 len = strlen(partial);
898 ispattern = (strchr(partial, '*') || strchr(partial, '?'));
899 }
900 else
901 {
902 partial = NULL;
903 len = 0;
904 ispattern = false;
905 }
906
907 count = 0;
908 for (cvar = cvar_vars; cvar; cvar = cvar->next)
909 {
910 if (len && (ispattern ? !matchpattern_with_separator(cvar->name, partial, false, "", false) : strncmp (partial,cvar->name,len)))
911 continue;
912
913 Con_Printf("%s is \"%s\" [\"%s\"] %s\n", cvar->name, ((cvar->flags & CVAR_PRIVATE) ? "********"/*hunter2*/ : cvar->string), cvar->defstring, cvar->description);
914 count++;
915 }
916
917 if (len)
918 {
919 if(ispattern)
920 Con_Printf("%i cvar%s matching \"%s\"\n", count, (count > 1) ? "s" : "", partial);
921 else
922 Con_Printf("%i cvar%s beginning with \"%s\"\n", count, (count > 1) ? "s" : "", partial);
923 }
924 else
925 Con_Printf("%i cvar(s)\n", count);
926 }
927 // 2000-01-09 CvarList command by Maddes
928
Cvar_Set_f(void)929 void Cvar_Set_f (void)
930 {
931 cvar_t *cvar;
932
933 // make sure it's the right number of parameters
934 if (Cmd_Argc() < 3)
935 {
936 Con_Printf("Set: wrong number of parameters, usage: set <variablename> <value> [<description>]\n");
937 return;
938 }
939
940 // check if it's read-only
941 cvar = Cvar_FindVar(Cmd_Argv(1));
942 if (cvar && cvar->flags & CVAR_READONLY)
943 {
944 Con_Printf("Set: %s is read-only\n", cvar->name);
945 return;
946 }
947
948 if (developer_extra.integer)
949 Con_DPrint("Set: ");
950
951 // all looks ok, create/modify the cvar
952 Cvar_Get(Cmd_Argv(1), Cmd_Argv(2), 0, Cmd_Argc() > 3 ? Cmd_Argv(3) : NULL);
953 }
954
Cvar_SetA_f(void)955 void Cvar_SetA_f (void)
956 {
957 cvar_t *cvar;
958
959 // make sure it's the right number of parameters
960 if (Cmd_Argc() < 3)
961 {
962 Con_Printf("SetA: wrong number of parameters, usage: seta <variablename> <value> [<description>]\n");
963 return;
964 }
965
966 // check if it's read-only
967 cvar = Cvar_FindVar(Cmd_Argv(1));
968 if (cvar && cvar->flags & CVAR_READONLY)
969 {
970 Con_Printf("SetA: %s is read-only\n", cvar->name);
971 return;
972 }
973
974 if (developer_extra.integer)
975 Con_DPrint("SetA: ");
976
977 // all looks ok, create/modify the cvar
978 Cvar_Get(Cmd_Argv(1), Cmd_Argv(2), CVAR_SAVE, Cmd_Argc() > 3 ? Cmd_Argv(3) : NULL);
979 }
980
Cvar_Del_f(void)981 void Cvar_Del_f (void)
982 {
983 int i;
984 cvar_t *cvar, *parent, **link, *prev;
985
986 if(Cmd_Argc() < 2)
987 {
988 Con_Printf("Del: wrong number of parameters, useage: unset <variablename1> [<variablename2> ...]\n");
989 return;
990 }
991 for(i = 1; i < Cmd_Argc(); ++i)
992 {
993 cvar = Cvar_FindVarLink(Cmd_Argv(i), &parent, &link, &prev);
994 if(!cvar)
995 {
996 Con_Printf("Del: %s is not defined\n", Cmd_Argv(i));
997 continue;
998 }
999 if(cvar->flags & CVAR_READONLY)
1000 {
1001 Con_Printf("Del: %s is read-only\n", cvar->name);
1002 continue;
1003 }
1004 if(!(cvar->flags & CVAR_ALLOCATED))
1005 {
1006 Con_Printf("Del: %s is static and cannot be deleted\n", cvar->name);
1007 continue;
1008 }
1009 if(cvar == cvar_vars)
1010 {
1011 cvar_vars = cvar->next;
1012 }
1013 else
1014 {
1015 // in this case, prev must be set, otherwise there has been some inconsistensy
1016 // elsewhere already... should I still check for prev != NULL?
1017 prev->next = cvar->next;
1018 }
1019
1020 if(parent)
1021 parent->nextonhashchain = cvar->nextonhashchain;
1022 else if(link)
1023 *link = cvar->nextonhashchain;
1024
1025 if(cvar->description != cvar_dummy_description)
1026 Z_Free((char *)cvar->description);
1027
1028 Z_Free((char *)cvar->name);
1029 Z_Free((char *)cvar->string);
1030 Z_Free((char *)cvar->defstring);
1031 Z_Free(cvar);
1032 }
1033 }
1034
1035 #ifdef FILLALLCVARSWITHRUBBISH
Cvar_FillAll_f()1036 void Cvar_FillAll_f()
1037 {
1038 char *buf, *p, *q;
1039 int n, i;
1040 cvar_t *var;
1041 qboolean verify;
1042 if(Cmd_Argc() != 2)
1043 {
1044 Con_Printf("Usage: %s length to plant rubbish\n", Cmd_Argv(0));
1045 Con_Printf("Usage: %s -length to verify that the rubbish is still there\n", Cmd_Argv(0));
1046 return;
1047 }
1048 n = atoi(Cmd_Argv(1));
1049 verify = (n < 0);
1050 if(verify)
1051 n = -n;
1052 buf = Z_Malloc(n + 1);
1053 buf[n] = 0;
1054 for(var = cvar_vars; var; var = var->next)
1055 {
1056 for(i = 0, p = buf, q = var->name; i < n; ++i)
1057 {
1058 *p++ = *q++;
1059 if(!*q)
1060 q = var->name;
1061 }
1062 if(verify && strcmp(var->string, buf))
1063 {
1064 Con_Printf("\n%s does not contain the right rubbish, either this is the first run or a possible overrun was detected, or something changed it intentionally; it DOES contain: %s\n", var->name, var->string);
1065 }
1066 Cvar_SetQuick(var, buf);
1067 }
1068 Z_Free(buf);
1069 }
1070 #endif /* FILLALLCVARSWITHRUBBISH */
1071