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