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