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212380e3 1/*
2 * ircd-ratbox: A slightly useful ircd.
3 * m_set.c: Sets a server parameter.
4 *
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22 * USA
23 *
f4ed5745 24 * $Id: m_set.c 3406 2007-04-13 19:06:53Z jilles $
212380e3 25 */
26
27/* rewritten by jdc */
28
29#include "stdinc.h"
30#include "client.h"
31#include "event.h"
32#include "irc_string.h"
33#include "sprintf_irc.h"
34#include "ircd.h"
35#include "numeric.h"
36#include "commio.h"
37#include "s_serv.h"
38#include "send.h"
39#include "common.h"
40#include "channel.h"
41#include "s_conf.h"
42#include "s_newconf.h"
43#include "msg.h"
44#include "parse.h"
45#include "modules.h"
46
47static int mo_set(struct Client *, struct Client *, int, const char **);
48
49struct Message set_msgtab = {
50 "SET", 0, 0, 0, MFLG_SLOW,
51 {mg_unreg, mg_not_oper, mg_ignore, mg_ignore, mg_ignore, {mo_set, 0}}
52};
53
54mapi_clist_av1 set_clist[] = { &set_msgtab, NULL };
f4ed5745 55DECLARE_MODULE_AV1(set, NULL, NULL, set_clist, NULL, NULL, "$Revision: 3406 $");
212380e3 56
57/* Structure used for the SET table itself */
58struct SetStruct
59{
60 const char *name;
61 void (*handler) ();
62 int wants_char; /* 1 if it expects (char *, [int]) */
63 int wants_int; /* 1 if it expects ([char *], int) */
64
65 /* eg: 0, 1 == only an int arg
66 * eg: 1, 1 == char and int args */
67};
68
69
70static void quote_adminstring(struct Client *, const char *);
71static void quote_autoconn(struct Client *, char *, int);
72static void quote_autoconnall(struct Client *, int);
73static void quote_floodcount(struct Client *, int);
74static void quote_identtimeout(struct Client *, int);
75static void quote_idletime(struct Client *, int);
76static void quote_max(struct Client *, int);
77static void quote_operstring(struct Client *, const char *);
78static void quote_spamnum(struct Client *, int);
79static void quote_spamtime(struct Client *, int);
80static void quote_splitmode(struct Client *, char *);
81static void quote_splitnum(struct Client *, int);
82static void quote_splitusers(struct Client *, int);
83static void list_quote_commands(struct Client *);
84
85
86/*
87 * If this ever needs to be expanded to more than one arg of each
88 * type, want_char/want_int could be the count of the arguments,
89 * instead of just a boolean flag...
90 *
91 * -davidt
92 */
93
94static struct SetStruct set_cmd_table[] = {
95 /* name function string arg int arg */
96 /* -------------------------------------------------------- */
97 {"ADMINSTRING", quote_adminstring, 1, 0 },
98 {"AUTOCONN", quote_autoconn, 1, 1 },
99 {"AUTOCONNALL", quote_autoconnall, 0, 1 },
100 {"FLOODCOUNT", quote_floodcount, 0, 1 },
101 {"IDENTTIMEOUT", quote_identtimeout, 0, 1 },
102 {"IDLETIME", quote_idletime, 0, 1 },
103 {"MAX", quote_max, 0, 1 },
104 {"MAXCLIENTS", quote_max, 0, 1 },
105 {"OPERSTRING", quote_operstring, 1, 0 },
106 {"SPAMNUM", quote_spamnum, 0, 1 },
107 {"SPAMTIME", quote_spamtime, 0, 1 },
108 {"SPLITMODE", quote_splitmode, 1, 0 },
109 {"SPLITNUM", quote_splitnum, 0, 1 },
110 {"SPLITUSERS", quote_splitusers, 0, 1 },
111 /* -------------------------------------------------------- */
112 {(char *) 0, (void (*)()) 0, 0, 0}
113};
114
115
116/*
117 * list_quote_commands() sends the client all the available commands.
118 * Four to a line for now.
119 */
120static void
121list_quote_commands(struct Client *source_p)
122{
123 int i;
124 int j = 0;
125 const char *names[4];
126
5366977b 127 sendto_one_notice(source_p, ":Available QUOTE SET commands:");
212380e3 128
129 names[0] = names[1] = names[2] = names[3] = "";
130
131 for (i = 0; set_cmd_table[i].handler; i++)
132 {
133 names[j++] = set_cmd_table[i].name;
134
135 if(j > 3)
136 {
5366977b 137 sendto_one_notice(source_p, ":%s %s %s %s",
138 names[0], names[1], names[2], names[3]);
212380e3 139 j = 0;
140 names[0] = names[1] = names[2] = names[3] = "";
141 }
142
143 }
144 if(j)
5366977b 145 sendto_one_notice(source_p, ":%s %s %s %s",
146 names[0], names[1], names[2], names[3]);
212380e3 147}
148
149/* SET AUTOCONN */
150static void
151quote_autoconn(struct Client *source_p, char *arg, int newval)
152{
153 set_server_conf_autoconn(source_p, arg, newval);
154}
155
156/* SET AUTOCONNALL */
157static void
158quote_autoconnall(struct Client *source_p, int newval)
159{
160 if(newval >= 0)
161 {
162 sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s has changed AUTOCONNALL to %i",
163 source_p->name, newval);
164
165 GlobalSetOptions.autoconn = newval;
166 }
167 else
168 {
5366977b 169 sendto_one_notice(source_p, ":AUTOCONNALL is currently %i",
170 GlobalSetOptions.autoconn);
212380e3 171 }
172}
173
174
175/* SET FLOODCOUNT */
176static void
177quote_floodcount(struct Client *source_p, int newval)
178{
179 if(newval >= 0)
180 {
181 GlobalSetOptions.floodcount = newval;
182 sendto_realops_snomask(SNO_GENERAL, L_ALL,
183 "%s has changed FLOODCOUNT to %i", source_p->name,
184 GlobalSetOptions.floodcount);
185 }
186 else
187 {
5366977b 188 sendto_one_notice(source_p, ":FLOODCOUNT is currently %i",
189 GlobalSetOptions.floodcount);
212380e3 190 }
191}
192
193/* SET IDENTTIMEOUT */
194static void
195quote_identtimeout(struct Client *source_p, int newval)
196{
197 if(!IsOperAdmin(source_p))
198 {
199 sendto_one(source_p, form_str(ERR_NOPRIVS),
200 me.name, source_p->name, "admin");
201 return;
202 }
203
204 if(newval > 0)
205 {
206 sendto_realops_snomask(SNO_GENERAL, L_ALL,
207 "%s has changed IDENTTIMEOUT to %d",
208 get_oper_name(source_p), newval);
209 GlobalSetOptions.ident_timeout = newval;
210 }
211 else
5366977b 212 sendto_one_notice(source_p, ":IDENTTIMEOUT is currently %d",
213 GlobalSetOptions.ident_timeout);
212380e3 214}
215
216/* SET IDLETIME */
217static void
218quote_idletime(struct Client *source_p, int newval)
219{
220 if(newval >= 0)
221 {
222 if(newval == 0)
223 {
224 sendto_realops_snomask(SNO_GENERAL, L_ALL,
225 "%s has disabled idletime checking", source_p->name);
226 GlobalSetOptions.idletime = 0;
227 }
228 else
229 {
230 sendto_realops_snomask(SNO_GENERAL, L_ALL,
231 "%s has changed IDLETIME to %i",
232 source_p->name, newval);
233 GlobalSetOptions.idletime = (newval * 60);
234 }
235 }
236 else
237 {
5366977b 238 sendto_one_notice(source_p, ":IDLETIME is currently %i",
239 GlobalSetOptions.idletime / 60);
212380e3 240 }
241}
242
243/* SET MAX */
244static void
245quote_max(struct Client *source_p, int newval)
246{
247 if(newval > 0)
248 {
6c70c576 249 if(newval > ServerInfo.max_clients)
250 {
f4ed5745 251 sendto_one_notice(source_p,
252 ":You cannot set MAXCLIENTS to > max_clients (%d)",
253 ServerInfo.max_clients);
6c70c576 254 return;
255 }
256
212380e3 257 if(newval < 32)
258 {
5366977b 259 sendto_one_notice(source_p, ":You cannot set MAXCLIENTS to < 32 (%d:%d)",
260 GlobalSetOptions.maxclients, highest_fd);
212380e3 261 return;
262 }
263
264 GlobalSetOptions.maxclients = newval;
265
266 sendto_realops_snomask(SNO_GENERAL, L_ALL,
267 "%s!%s@%s set new MAXCLIENTS to %d (%lu current)",
268 source_p->name, source_p->username, source_p->host,
269 GlobalSetOptions.maxclients,
270 dlink_list_length(&lclient_list));
271
272 return;
273 }
274 else
275 {
5366977b 276 sendto_one_notice(source_p, ":Current Maxclients = %d (%lu)",
277 GlobalSetOptions.maxclients, dlink_list_length(&lclient_list));
212380e3 278 }
279}
280
281/* SET OPERSTRING */
282static void
283quote_operstring(struct Client *source_p, const char *arg)
284{
285 if(EmptyString(arg))
286 {
5366977b 287 sendto_one_notice(source_p, ":OPERSTRING is currently '%s'", GlobalSetOptions.operstring);
212380e3 288 }
289 else
290 {
291 strlcpy(GlobalSetOptions.operstring, arg,
292 sizeof(GlobalSetOptions.operstring));
293
294 sendto_realops_snomask(SNO_GENERAL, L_ALL,
295 "%s has changed OPERSTRING to '%s'",
296 get_oper_name(source_p), arg);
297 }
298}
299
300/* SET ADMINSTRING */
301static void
302quote_adminstring(struct Client *source_p, const char *arg)
303{
304 if(EmptyString(arg))
305 {
5366977b 306 sendto_one_notice(source_p, ":ADMINSTRING is currently '%s'", GlobalSetOptions.adminstring);
212380e3 307 }
308 else
309 {
310 strlcpy(GlobalSetOptions.adminstring, arg,
311 sizeof(GlobalSetOptions.adminstring));
312
313 sendto_realops_snomask(SNO_GENERAL, L_ALL,
314 "%s has changed ADMINSTRING to '%s'",
315 get_oper_name(source_p), arg);
316 }
317}
318
319/* SET SPAMNUM */
320static void
321quote_spamnum(struct Client *source_p, int newval)
322{
323 if(newval > 0)
324 {
325 if(newval == 0)
326 {
327 sendto_realops_snomask(SNO_GENERAL, L_ALL,
328 "%s has disabled ANTI_SPAMBOT", source_p->name);
329 GlobalSetOptions.spam_num = newval;
330 return;
331 }
332 if(newval < MIN_SPAM_NUM)
333 {
334 GlobalSetOptions.spam_num = MIN_SPAM_NUM;
335 }
336 else /* if (newval < MIN_SPAM_NUM) */
337 {
338 GlobalSetOptions.spam_num = newval;
339 }
340 sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s has changed SPAMNUM to %i",
341 source_p->name, GlobalSetOptions.spam_num);
342 }
343 else
344 {
5366977b 345 sendto_one_notice(source_p, ":SPAMNUM is currently %i", GlobalSetOptions.spam_num);
212380e3 346 }
347}
348
349/* SET SPAMTIME */
350static void
351quote_spamtime(struct Client *source_p, int newval)
352{
353 if(newval > 0)
354 {
355 if(newval < MIN_SPAM_TIME)
356 {
357 GlobalSetOptions.spam_time = MIN_SPAM_TIME;
358 }
359 else /* if (newval < MIN_SPAM_TIME) */
360 {
361 GlobalSetOptions.spam_time = newval;
362 }
363 sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s has changed SPAMTIME to %i",
364 source_p->name, GlobalSetOptions.spam_time);
365 }
366 else
367 {
5366977b 368 sendto_one_notice(source_p, ":SPAMTIME is currently %i", GlobalSetOptions.spam_time);
212380e3 369 }
370}
371
372/* this table is what splitmode may be set to */
373static const char *splitmode_values[] = {
374 "OFF",
375 "ON",
376 "AUTO",
377 NULL
378};
379
380/* this table is what splitmode may be */
381static const char *splitmode_status[] = {
382 "OFF",
383 "AUTO (OFF)",
384 "ON",
385 "AUTO (ON)",
386 NULL
387};
388
389/* SET SPLITMODE */
390static void
391quote_splitmode(struct Client *source_p, char *charval)
392{
393 if(charval)
394 {
395 int newval;
396
397 for (newval = 0; splitmode_values[newval]; newval++)
398 {
399 if(!irccmp(splitmode_values[newval], charval))
400 break;
401 }
402
403 /* OFF */
404 if(newval == 0)
405 {
406 sendto_realops_snomask(SNO_GENERAL, L_ALL,
407 "%s is disabling splitmode", get_oper_name(source_p));
408
409 splitmode = 0;
410 splitchecking = 0;
411
412 eventDelete(check_splitmode, NULL);
413 }
414 /* ON */
415 else if(newval == 1)
416 {
417 sendto_realops_snomask(SNO_GENERAL, L_ALL,
418 "%s is enabling and activating splitmode",
419 get_oper_name(source_p));
420
421 splitmode = 1;
422 splitchecking = 0;
423
424 /* we might be deactivating an automatic splitmode, so pull the event */
425 eventDelete(check_splitmode, NULL);
426 }
427 /* AUTO */
428 else if(newval == 2)
429 {
430 sendto_realops_snomask(SNO_GENERAL, L_ALL,
431 "%s is enabling automatic splitmode",
432 get_oper_name(source_p));
433
434 splitchecking = 1;
435 check_splitmode(NULL);
436 }
437 }
438 else
439 /* if we add splitchecking to splitmode*2 we get a unique table to
440 * pull values back out of, splitmode can be four states - but you can
441 * only set to three, which means we cant use the same table --fl_
442 */
5366977b 443 sendto_one_notice(source_p, ":SPLITMODE is currently %s",
212380e3 444 splitmode_status[(splitchecking + (splitmode * 2))]);
445}
446
447/* SET SPLITNUM */
448static void
449quote_splitnum(struct Client *source_p, int newval)
450{
451 if(newval >= 0)
452 {
453 sendto_realops_snomask(SNO_GENERAL, L_ALL,
454 "%s has changed SPLITNUM to %i", source_p->name, newval);
455 split_servers = newval;
456
457 if(splitchecking)
458 check_splitmode(NULL);
459 }
460 else
5366977b 461 sendto_one_notice(source_p, ":SPLITNUM is currently %i", split_servers);
212380e3 462}
463
464/* SET SPLITUSERS */
465static void
466quote_splitusers(struct Client *source_p, int newval)
467{
468 if(newval >= 0)
469 {
470 sendto_realops_snomask(SNO_GENERAL, L_ALL,
471 "%s has changed SPLITUSERS to %i", source_p->name, newval);
472 split_users = newval;
473
474 if(splitchecking)
475 check_splitmode(NULL);
476 }
477 else
5366977b 478 sendto_one_notice(source_p, ":SPLITUSERS is currently %i", split_users);
212380e3 479}
480
481/*
482 * mo_set - SET command handler
483 * set options while running
484 */
485static int
486mo_set(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
487{
488 int newval;
489 int i, n;
490 const char *arg = NULL;
491 const char *intarg = NULL;
492
493 if(parc > 1)
494 {
495 /*
496 * Go through all the commands in set_cmd_table, until one is
497 * matched. I realize strcmp() is more intensive than a numeric
498 * lookup, but at least it's better than a big-ass switch/case
499 * statement.
500 */
501 for (i = 0; set_cmd_table[i].handler; i++)
502 {
503 if(!irccmp(set_cmd_table[i].name, parv[1]))
504 {
505 /*
506 * Command found; now execute the code
507 */
508 n = 2;
509
510 if(set_cmd_table[i].wants_char)
511 {
512 arg = parv[n++];
513 }
514
515 if(set_cmd_table[i].wants_int)
516 {
517 intarg = parv[n++];
518 }
519
520 if((n - 1) > parc)
521 {
5366977b 522 sendto_one_notice(source_p,
523 ":SET %s expects (\"%s%s\") args",
212380e3 524 set_cmd_table[i].name,
525 (set_cmd_table[i].
526 wants_char ? "string, " : ""),
527 (set_cmd_table[i].
528 wants_char ? "int" : ""));
529 return 0;
530 }
531
532 if(parc <= 2)
533 {
534 arg = NULL;
535 intarg = NULL;
536 }
537
538 if(set_cmd_table[i].wants_int && (parc > 2))
539 {
540 if(intarg)
541 {
542 if(!irccmp(intarg, "yes") || !irccmp(intarg, "on"))
543 newval = 1;
544 else if(!irccmp(intarg, "no")
545 || !irccmp(intarg, "off"))
546 newval = 0;
547 else
548 newval = atoi(intarg);
549 }
550 else
551 {
552 newval = -1;
553 }
554
555 if(newval < 0)
556 {
5366977b 557 sendto_one_notice(source_p,
558 ":Value less than 0 illegal for %s",
212380e3 559 set_cmd_table[i].name);
560
561 return 0;
562 }
563 }
564 else
565 newval = -1;
566
567 if(set_cmd_table[i].wants_char)
568 {
569 if(set_cmd_table[i].wants_int)
570 set_cmd_table[i].handler(source_p, arg, newval);
571 else
572 set_cmd_table[i].handler(source_p, arg);
573 return 0;
574 }
575 else
576 {
577 if(set_cmd_table[i].wants_int)
578 set_cmd_table[i].handler(source_p, newval);
579 else
580 /* Just in case someone actually wants a
581 * set function that takes no args.. *shrug* */
582 set_cmd_table[i].handler(source_p);
583 return 0;
584 }
585 }
586 }
587
588 /*
589 * Code here will be executed when a /QUOTE SET command is not
590 * found within set_cmd_table.
591 */
5366977b 592 sendto_one_notice(source_p, ":Variable not found.");
212380e3 593 return 0;
594 }
595
596 list_quote_commands(source_p);
597
598 return 0;
599}