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1 | /* | |
2 | * charybdis: an advanced ircd. | |
3 | * parse.c: The message parser. | |
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 | * Copyright (C) 2007 William Pitcock | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
23 | * USA | |
24 | * | |
25 | * $Id: parse.c 3177 2007-02-01 00:19:14Z jilles $ | |
26 | */ | |
27 | ||
28 | #include "stdinc.h" | |
29 | #include "parse.h" | |
30 | #include "client.h" | |
31 | #include "channel.h" | |
32 | #include "common.h" | |
33 | #include "hash.h" | |
34 | #include "irc_string.h" | |
35 | #include "sprintf_irc.h" | |
36 | #include "ircd.h" | |
37 | #include "numeric.h" | |
38 | #include "s_log.h" | |
39 | #include "s_stats.h" | |
40 | #include "send.h" | |
41 | #include "msg.h" | |
42 | #include "s_conf.h" | |
43 | #include "memory.h" | |
44 | #include "s_serv.h" | |
45 | #include "packet.h" | |
46 | ||
47 | static struct Dictionary *cmd_dict = NULL; | |
48 | struct Dictionary *alias_dict = NULL; | |
49 | ||
50 | /* | |
51 | * NOTE: parse() should not be called recursively by other functions! | |
52 | */ | |
53 | static char *sender; | |
54 | ||
55 | /* parv[0] == source, and parv[LAST] == NULL */ | |
56 | static char *para[MAXPARA + 2]; | |
57 | ||
58 | static void cancel_clients(struct Client *, struct Client *, char *); | |
59 | static void remove_unknown(struct Client *, char *, char *); | |
60 | ||
61 | static void do_numeric(char[], struct Client *, struct Client *, int, char **); | |
62 | static void do_alias(struct alias_entry *, struct Client *, char *); | |
63 | ||
64 | static int handle_command(struct Message *, struct Client *, struct Client *, int, const char**); | |
65 | ||
66 | static int cmd_hash(const char *p); | |
67 | ||
68 | static char buffer[1024]; | |
69 | ||
70 | /* turn a string into a parc/parv pair */ | |
71 | ||
72 | ||
73 | static inline int | |
74 | string_to_array(char *string, char **parv) | |
75 | { | |
76 | char *p, *buf = string; | |
77 | int x = 1; | |
78 | ||
79 | parv[x] = NULL; | |
80 | while (*buf == ' ') /* skip leading spaces */ | |
81 | buf++; | |
82 | if(*buf == '\0') /* ignore all-space args */ | |
83 | return x; | |
84 | ||
85 | do | |
86 | { | |
87 | if(*buf == ':') /* Last parameter */ | |
88 | { | |
89 | buf++; | |
90 | parv[x++] = buf; | |
91 | parv[x] = NULL; | |
92 | return x; | |
93 | } | |
94 | else | |
95 | { | |
96 | parv[x++] = buf; | |
97 | parv[x] = NULL; | |
98 | if((p = strchr(buf, ' ')) != NULL) | |
99 | { | |
100 | *p++ = '\0'; | |
101 | buf = p; | |
102 | } | |
103 | else | |
104 | return x; | |
105 | } | |
106 | while (*buf == ' ') | |
107 | buf++; | |
108 | if(*buf == '\0') | |
109 | return x; | |
110 | } | |
111 | /* we can go upto parv[MAXPARA], as parv[0] is taken by source */ | |
112 | while (x < MAXPARA); | |
113 | ||
114 | if(*p == ':') | |
115 | p++; | |
116 | ||
117 | parv[x++] = p; | |
118 | parv[x] = NULL; | |
119 | return x; | |
120 | } | |
121 | ||
122 | /* parse() | |
123 | * | |
124 | * given a raw buffer, parses it and generates parv, parc and sender | |
125 | */ | |
126 | void | |
127 | parse(struct Client *client_p, char *pbuffer, char *bufend) | |
128 | { | |
129 | struct Client *from = client_p; | |
130 | char *ch; | |
131 | char *s; | |
132 | char *end; | |
133 | int i = 1; | |
134 | char *numeric = 0; | |
135 | struct Message *mptr; | |
136 | ||
137 | s_assert(MyConnect(client_p)); | |
138 | s_assert(client_p->localClient->fd >= 0); | |
139 | if(IsAnyDead(client_p)) | |
140 | return; | |
141 | ||
142 | for (ch = pbuffer; *ch == ' '; ch++) /* skip spaces */ | |
143 | /* null statement */ ; | |
144 | ||
145 | para[0] = from->name; | |
146 | ||
147 | if(*ch == ':') | |
148 | { | |
149 | ch++; | |
150 | ||
151 | /* point sender to the sender param */ | |
152 | sender = ch; | |
153 | ||
154 | if((s = strchr(ch, ' '))) | |
155 | { | |
156 | *s = '\0'; | |
157 | s++; | |
158 | ch = s; | |
159 | } | |
160 | ||
161 | if(*sender && IsServer(client_p)) | |
162 | { | |
163 | from = find_client(sender); | |
164 | ||
165 | /* didnt find any matching client, issue a kill */ | |
166 | if(from == NULL) | |
167 | { | |
168 | ServerStats->is_unpf++; | |
169 | remove_unknown(client_p, sender, pbuffer); | |
170 | return; | |
171 | } | |
172 | ||
173 | para[0] = from->name; | |
174 | ||
175 | /* fake direction, hmm. */ | |
176 | if(from->from != client_p) | |
177 | { | |
178 | ServerStats->is_wrdi++; | |
179 | cancel_clients(client_p, from, pbuffer); | |
180 | return; | |
181 | } | |
182 | } | |
183 | while (*ch == ' ') | |
184 | ch++; | |
185 | } | |
186 | ||
187 | if(*ch == '\0') | |
188 | { | |
189 | ServerStats->is_empt++; | |
190 | return; | |
191 | } | |
192 | ||
193 | /* at this point there must be some sort of command parameter */ | |
194 | ||
195 | /* | |
196 | * Extract the command code from the packet. Point s to the end | |
197 | * of the command code and calculate the length using pointer | |
198 | * arithmetic. Note: only need length for numerics and *all* | |
199 | * numerics must have parameters and thus a space after the command | |
200 | * code. -avalon | |
201 | */ | |
202 | ||
203 | /* EOB is 3 chars long but is not a numeric */ | |
204 | ||
205 | if(*(ch + 3) == ' ' && /* ok, lets see if its a possible numeric.. */ | |
206 | IsDigit(*ch) && IsDigit(*(ch + 1)) && IsDigit(*(ch + 2))) | |
207 | { | |
208 | mptr = NULL; | |
209 | numeric = ch; | |
210 | ServerStats->is_num++; | |
211 | s = ch + 3; /* I know this is ' ' from above if */ | |
212 | *s++ = '\0'; /* blow away the ' ', and point s to next part */ | |
213 | } | |
214 | else | |
215 | { | |
216 | int ii = 0; | |
217 | ||
218 | if((s = strchr(ch, ' '))) | |
219 | *s++ = '\0'; | |
220 | ||
221 | mptr = irc_dictionary_retrieve(cmd_dict, mptr); | |
222 | ||
223 | /* no command or its encap only, error */ | |
224 | if(!mptr || !mptr->cmd) | |
225 | { | |
226 | /* | |
227 | * Note: Give error message *only* to recognized | |
228 | * persons. It's a nightmare situation to have | |
229 | * two programs sending "Unknown command"'s or | |
230 | * equivalent to each other at full blast.... | |
231 | * If it has got to person state, it at least | |
232 | * seems to be well behaving. Perhaps this message | |
233 | * should never be generated, though... --msa | |
234 | * Hm, when is the buffer empty -- if a command | |
235 | * code has been found ?? -Armin | |
236 | */ | |
237 | if(pbuffer[0] != '\0') | |
238 | { | |
239 | if (IsPerson(client_p)) | |
240 | { | |
241 | struct alias_entry *aptr = irc_dictionary_retrieve(alias_dict, ch); | |
242 | if (aptr != NULL) | |
243 | { | |
244 | do_alias(aptr, client_p, s); | |
245 | return; | |
246 | } | |
247 | } | |
248 | if(IsPerson(from)) | |
249 | { | |
250 | sendto_one(from, form_str(ERR_UNKNOWNCOMMAND), | |
251 | me.name, from->name, ch); | |
252 | } | |
253 | } | |
254 | ServerStats->is_unco++; | |
255 | return; | |
256 | } | |
257 | ||
258 | ii = bufend - ((s) ? s : ch); | |
259 | mptr->bytes += ii; | |
260 | } | |
261 | ||
262 | end = bufend - 1; | |
263 | ||
264 | /* XXX this should be done before parse() is called */ | |
265 | if(*end == '\n') | |
266 | *end-- = '\0'; | |
267 | if(*end == '\r') | |
268 | *end = '\0'; | |
269 | ||
270 | if(s != NULL) | |
271 | i = string_to_array(s, para); | |
272 | ||
273 | if(mptr == NULL) | |
274 | { | |
275 | do_numeric(numeric, client_p, from, i, para); | |
276 | return; | |
277 | } | |
278 | ||
279 | if(handle_command(mptr, client_p, from, i, /* XXX discards const!!! */ (const char **)para) < -1) | |
280 | { | |
281 | char *p; | |
282 | for (p = pbuffer; p <= end; p += 8) | |
283 | { | |
284 | /* HACK HACK */ | |
285 | /* Its expected this nasty code can be removed | |
286 | * or rewritten later if still needed. | |
287 | */ | |
288 | if((unsigned long) (p + 8) > (unsigned long) end) | |
289 | { | |
290 | for (; p <= end; p++) | |
291 | { | |
292 | ilog(L_MAIN, "%02x |%c", p[0], p[0]); | |
293 | } | |
294 | } | |
295 | else | |
296 | ilog(L_MAIN, | |
297 | "%02x %02x %02x %02x %02x %02x %02x %02x |%c%c%c%c%c%c%c%c", | |
298 | p[0], p[1], p[2], p[3], p[4], p[5], | |
299 | p[6], p[7], p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]); | |
300 | } | |
301 | } | |
302 | ||
303 | } | |
304 | ||
305 | /* | |
306 | * handle_command | |
307 | * | |
308 | * inputs - pointer to message block | |
309 | * - pointer to client | |
310 | * - pointer to client message is from | |
311 | * - count of number of args | |
312 | * - pointer to argv[] array | |
313 | * output - -1 if error from server | |
314 | * side effects - | |
315 | */ | |
316 | static int | |
317 | handle_command(struct Message *mptr, struct Client *client_p, | |
318 | struct Client *from, int i, const char** hpara) | |
319 | { | |
320 | struct MessageEntry ehandler; | |
321 | MessageHandler handler = 0; | |
322 | char squitreason[80]; | |
323 | ||
324 | if(IsAnyDead(client_p)) | |
325 | return -1; | |
326 | ||
327 | if(IsServer(client_p)) | |
328 | mptr->rcount++; | |
329 | ||
330 | mptr->count++; | |
331 | ||
332 | /* New patch to avoid server flooding from unregistered connects | |
333 | - Pie-Man 07/27/2000 */ | |
334 | ||
335 | if(!IsRegistered(client_p)) | |
336 | { | |
337 | /* if its from a possible server connection | |
338 | * ignore it.. more than likely its a header thats sneaked through | |
339 | */ | |
340 | ||
341 | if(IsAnyServer(client_p) && !(mptr->flags & MFLG_UNREG)) | |
342 | return (1); | |
343 | } | |
344 | ||
345 | ehandler = mptr->handlers[from->handler]; | |
346 | handler = ehandler.handler; | |
347 | ||
348 | /* check right amount of params is passed... --is */ | |
349 | if(i < ehandler.min_para || | |
350 | (ehandler.min_para && EmptyString(hpara[ehandler.min_para - 1]))) | |
351 | { | |
352 | if(!IsServer(client_p)) | |
353 | { | |
354 | sendto_one(client_p, form_str(ERR_NEEDMOREPARAMS), | |
355 | me.name, | |
356 | EmptyString(client_p->name) ? "*" : client_p->name, | |
357 | mptr->cmd); | |
358 | if(MyClient(client_p)) | |
359 | return (1); | |
360 | else | |
361 | return (-1); | |
362 | } | |
363 | ||
364 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
365 | "Dropping server %s due to (invalid) command '%s'" | |
366 | " with only %d arguments (expecting %d).", | |
367 | client_p->name, mptr->cmd, i, ehandler.min_para); | |
368 | ilog(L_SERVER, | |
369 | "Insufficient parameters (%d < %d) for command '%s' from %s.", | |
370 | i, ehandler.min_para, mptr->cmd, client_p->name); | |
371 | snprintf(squitreason, sizeof squitreason, | |
372 | "Insufficient parameters (%d < %d) for command '%s'", | |
373 | i, ehandler.min_para, mptr->cmd); | |
374 | exit_client(client_p, client_p, client_p, squitreason); | |
375 | return (-1); | |
376 | } | |
377 | ||
378 | (*handler) (client_p, from, i, hpara); | |
379 | return (1); | |
380 | } | |
381 | ||
382 | void | |
383 | handle_encap(struct Client *client_p, struct Client *source_p, | |
384 | const char *command, int parc, const char *parv[]) | |
385 | { | |
386 | struct Message *mptr; | |
387 | struct MessageEntry ehandler; | |
388 | MessageHandler handler = 0; | |
389 | ||
390 | parv[0] = source_p->name; | |
391 | ||
392 | mptr = irc_dictionary_retrieve(cmd_dict, command); | |
393 | ||
394 | if(mptr == NULL || mptr->cmd == NULL) | |
395 | return; | |
396 | ||
397 | ehandler = mptr->handlers[ENCAP_HANDLER]; | |
398 | handler = ehandler.handler; | |
399 | ||
400 | if(parc < ehandler.min_para || | |
401 | (ehandler.min_para && EmptyString(parv[ehandler.min_para - 1]))) | |
402 | return; | |
403 | ||
404 | (*handler) (client_p, source_p, parc, parv); | |
405 | } | |
406 | ||
407 | /* | |
408 | * clear_hash_parse() | |
409 | * | |
410 | * inputs - | |
411 | * output - NONE | |
412 | * side effects - MUST MUST be called at startup ONCE before | |
413 | * any other keyword hash routine is used. | |
414 | * | |
415 | */ | |
416 | void | |
417 | clear_hash_parse() | |
418 | { | |
419 | cmd_dict = irc_dictionary_create(strcasecmp); | |
420 | } | |
421 | ||
422 | /* mod_add_cmd | |
423 | * | |
424 | * inputs - command name | |
425 | * - pointer to struct Message | |
426 | * output - none | |
427 | * side effects - load this one command name | |
428 | * msg->count msg->bytes is modified in place, in | |
429 | * modules address space. Might not want to do that... | |
430 | */ | |
431 | void | |
432 | mod_add_cmd(struct Message *msg) | |
433 | { | |
434 | s_assert(msg != NULL); | |
435 | if(msg == NULL) | |
436 | return; | |
437 | ||
438 | if (irc_dictionary_find(cmd_dict, msg->cmd) != NULL) | |
439 | return; | |
440 | ||
441 | msg->count = 0; | |
442 | msg->rcount = 0; | |
443 | msg->bytes = 0; | |
444 | ||
445 | irc_dictionary_add(cmd_dict, msg->cmd, msg); | |
446 | } | |
447 | ||
448 | /* mod_del_cmd | |
449 | * | |
450 | * inputs - command name | |
451 | * output - none | |
452 | * side effects - unload this one command name | |
453 | */ | |
454 | void | |
455 | mod_del_cmd(struct Message *msg) | |
456 | { | |
457 | s_assert(msg != NULL); | |
458 | if(msg == NULL) | |
459 | return; | |
460 | ||
461 | irc_dictionary_delete(cmd_dict, msg->cmd); | |
462 | } | |
463 | ||
464 | /* | |
465 | * report_messages | |
466 | * | |
467 | * inputs - pointer to client to report to | |
468 | * output - NONE | |
469 | * side effects - NONE | |
470 | */ | |
471 | void | |
472 | report_messages(struct Client *source_p) | |
473 | { | |
474 | struct DictionaryIter iter; | |
475 | struct Message *msg; | |
476 | struct alias_entry *amsg; | |
477 | ||
478 | IRC_DICTIONARY_FOREACH(msg, &iter, cmd_dict) | |
479 | { | |
480 | s_assert(msg->cmd != NULL); | |
481 | sendto_one_numeric(source_p, RPL_STATSCOMMANDS, | |
482 | form_str(RPL_STATSCOMMANDS), | |
483 | msg->cmd, msg->count, | |
484 | msg->bytes, msg->rcount); | |
485 | } | |
486 | ||
487 | IRC_DICTIONARY_FOREACH(amsg, &iter, alias_dict) | |
488 | { | |
489 | s_assert(amsg->name != NULL); | |
490 | sendto_one_numeric(source_p, RPL_STATSCOMMANDS, | |
491 | form_str(RPL_STATSCOMMANDS), | |
492 | amsg->name, amsg->hits, 0, 0); | |
493 | } | |
494 | } | |
495 | ||
496 | /* cancel_clients() | |
497 | * | |
498 | * inputs - client who sent us the message, client with fake | |
499 | * direction, command | |
500 | * outputs - a given warning about the fake direction | |
501 | * side effects - | |
502 | */ | |
503 | static void | |
504 | cancel_clients(struct Client *client_p, struct Client *source_p, char *cmd) | |
505 | { | |
506 | /* ok, fake prefix happens naturally during a burst on a nick | |
507 | * collision with TS5, we cant kill them because one client has to | |
508 | * survive, so we just send an error. | |
509 | */ | |
510 | if(IsServer(source_p) || IsMe(source_p)) | |
511 | { | |
512 | sendto_realops_snomask(SNO_DEBUG, L_ALL, | |
513 | "Message for %s[%s] from %s", | |
514 | source_p->name, source_p->from->name, | |
515 | get_server_name(client_p, SHOW_IP)); | |
516 | } | |
517 | else | |
518 | { | |
519 | sendto_realops_snomask(SNO_DEBUG, L_ALL, | |
520 | "Message for %s[%s@%s!%s] from %s (TS, ignored)", | |
521 | source_p->name, | |
522 | source_p->username, | |
523 | source_p->host, | |
524 | source_p->from->name, | |
525 | get_server_name(client_p, SHOW_IP)); | |
526 | } | |
527 | } | |
528 | ||
529 | /* remove_unknown() | |
530 | * | |
531 | * inputs - client who gave us message, supposed sender, buffer | |
532 | * output - | |
533 | * side effects - kills issued for clients, squits for servers | |
534 | */ | |
535 | static void | |
536 | remove_unknown(struct Client *client_p, char *lsender, char *lbuffer) | |
537 | { | |
538 | int slen = strlen(lsender); | |
539 | ||
540 | /* meepfoo is a nickname (KILL) | |
541 | * #XXXXXXXX is a UID (KILL) | |
542 | * #XX is a SID (SQUIT) | |
543 | * meep.foo is a server (SQUIT) | |
544 | */ | |
545 | if((IsDigit(lsender[0]) && slen == 3) || | |
546 | (strchr(lsender, '.') != NULL)) | |
547 | { | |
548 | sendto_realops_snomask(SNO_DEBUG, L_ALL, | |
549 | "Unknown prefix (%s) from %s, Squitting %s", | |
550 | lbuffer, get_server_name(client_p, SHOW_IP), lsender); | |
551 | ||
552 | sendto_one(client_p, | |
553 | ":%s SQUIT %s :(Unknown prefix (%s) from %s)", | |
554 | get_id(&me, client_p), lsender, | |
555 | lbuffer, client_p->name); | |
556 | } | |
557 | else | |
558 | sendto_one(client_p, ":%s KILL %s :%s (Unknown Client)", | |
559 | get_id(&me, client_p), lsender, me.name); | |
560 | } | |
561 | ||
562 | ||
563 | ||
564 | /* | |
565 | * | |
566 | * parc number of arguments ('sender' counted as one!) | |
567 | * parv[0] pointer to 'sender' (may point to empty string) (not used) | |
568 | * parv[1]..parv[parc-1] | |
569 | * pointers to additional parameters, this is a NULL | |
570 | * terminated list (parv[parc] == NULL). | |
571 | * | |
572 | * *WARNING* | |
573 | * Numerics are mostly error reports. If there is something | |
574 | * wrong with the message, just *DROP* it! Don't even think of | |
575 | * sending back a neat error message -- big danger of creating | |
576 | * a ping pong error message... | |
577 | */ | |
578 | static void | |
579 | do_numeric(char numeric[], struct Client *client_p, struct Client *source_p, int parc, char *parv[]) | |
580 | { | |
581 | struct Client *target_p; | |
582 | struct Channel *chptr; | |
583 | ||
584 | if(parc < 2 || !IsServer(source_p)) | |
585 | return; | |
586 | ||
587 | /* Remap low number numerics. */ | |
588 | if(numeric[0] == '0') | |
589 | numeric[0] = '1'; | |
590 | ||
591 | /* | |
592 | * Prepare the parameter portion of the message into 'buffer'. | |
593 | * (Because the buffer is twice as large as the message buffer | |
594 | * for the socket, no overflow can occur here... ...on current | |
595 | * assumptions--bets are off, if these are changed --msa) | |
596 | * Note: if buffer is non-empty, it will begin with SPACE. | |
597 | */ | |
598 | if(parc > 1) | |
599 | { | |
600 | char *t = buffer; /* Current position within the buffer */ | |
601 | int i; | |
602 | int tl; /* current length of presently being built string in t */ | |
603 | for (i = 2; i < (parc - 1); i++) | |
604 | { | |
605 | tl = ircsprintf(t, " %s", parv[i]); | |
606 | t += tl; | |
607 | } | |
608 | ircsprintf(t, " :%s", parv[parc - 1]); | |
609 | } | |
610 | ||
611 | if((target_p = find_client(parv[1])) != NULL) | |
612 | { | |
613 | if(IsMe(target_p)) | |
614 | { | |
615 | /* | |
616 | * We shouldn't get numerics sent to us, | |
617 | * any numerics we do get indicate a bug somewhere.. | |
618 | */ | |
619 | /* ugh. this is here because of nick collisions. when two servers | |
620 | * relink, they burst each other their nicks, then perform collides. | |
621 | * if there is a nick collision, BOTH servers will kill their own | |
622 | * nicks, and BOTH will kill the other servers nick, which wont exist, | |
623 | * because it will have been already killed by the local server. | |
624 | * | |
625 | * unfortunately, as we cant guarantee other servers will do the | |
626 | * "right thing" on a nick collision, we have to keep both kills. | |
627 | * ergo we need to ignore ERR_NOSUCHNICK. --fl_ | |
628 | */ | |
629 | /* quick comment. This _was_ tried. i.e. assume the other servers | |
630 | * will do the "right thing" and kill a nick that is colliding. | |
631 | * unfortunately, it did not work. --Dianora | |
632 | */ | |
633 | /* note, now we send PING on server connect, we can | |
634 | * also get ERR_NOSUCHSERVER.. | |
635 | */ | |
636 | if(atoi(numeric) != ERR_NOSUCHNICK && | |
637 | atoi(numeric) != ERR_NOSUCHSERVER) | |
638 | sendto_realops_snomask(SNO_GENERAL, L_ADMIN, | |
639 | "*** %s(via %s) sent a %s numeric to me: %s", | |
640 | source_p->name, | |
641 | client_p->name, numeric, buffer); | |
642 | return; | |
643 | } | |
644 | else if(target_p->from == client_p) | |
645 | { | |
646 | /* This message changed direction (nick collision?) | |
647 | * ignore it. | |
648 | */ | |
649 | return; | |
650 | } | |
651 | ||
652 | /* csircd will send out unknown umode flag for +a (admin), drop it here. */ | |
653 | if((atoi(numeric) == ERR_UMODEUNKNOWNFLAG) && MyClient(target_p)) | |
654 | return; | |
655 | ||
656 | /* Fake it for server hiding, if its our client */ | |
657 | sendto_one(target_p, ":%s %s %s%s", | |
658 | get_id(source_p, target_p), numeric, | |
659 | get_id(target_p, target_p), buffer); | |
660 | return; | |
661 | } | |
662 | else if((chptr = find_channel(parv[1])) != NULL) | |
663 | sendto_channel_local(ALL_MEMBERS, chptr, | |
664 | ":%s %s %s %s", | |
665 | source_p->name, numeric, chptr->chname, buffer); | |
666 | } | |
667 | ||
668 | static void do_alias(struct alias_entry *aptr, struct Client *source_p, char *text) | |
669 | { | |
670 | char *p; | |
671 | struct Client *target_p; | |
672 | ||
673 | if (!IsFloodDone(source_p) && source_p->localClient->receiveM > 20) | |
674 | flood_endgrace(source_p); | |
675 | ||
676 | p = strchr(aptr->target, '@'); | |
677 | if (p != NULL) | |
678 | { | |
679 | /* user@server */ | |
680 | target_p = find_server(NULL, p + 1); | |
681 | if (target_p != NULL && IsMe(target_p)) | |
682 | target_p = NULL; | |
683 | } | |
684 | else | |
685 | { | |
686 | /* nick, must be +S */ | |
687 | target_p = find_named_person(aptr->target); | |
688 | if (target_p != NULL && !IsService(target_p)) | |
689 | target_p = NULL; | |
690 | } | |
691 | ||
692 | if (target_p == NULL) | |
693 | { | |
694 | sendto_one_numeric(source_p, ERR_SERVICESDOWN, form_str(ERR_SERVICESDOWN), aptr->target); | |
695 | return; | |
696 | } | |
697 | ||
698 | if (text != NULL && *text == ':') | |
699 | text++; | |
700 | if (text == NULL || *text == '\0') | |
701 | { | |
702 | sendto_one(source_p, form_str(ERR_NOTEXTTOSEND), me.name, source_p->name); | |
703 | return; | |
704 | } | |
705 | ||
706 | /* increment the hitcounter on this alias */ | |
707 | aptr->hits++; | |
708 | ||
709 | sendto_one(target_p, ":%s PRIVMSG %s :%s", | |
710 | get_id(source_p, target_p), | |
711 | p != NULL ? aptr->target : get_id(target_p, target_p), | |
712 | text); | |
713 | } | |
714 | ||
715 | int | |
716 | m_not_oper(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
717 | { | |
718 | sendto_one_numeric(source_p, ERR_NOPRIVILEGES, form_str(ERR_NOPRIVILEGES)); | |
719 | return 0; | |
720 | } | |
721 | ||
722 | int | |
723 | m_unregistered(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
724 | { | |
725 | /* bit of a hack. | |
726 | * I don't =really= want to waste a bit in a flag | |
727 | * number_of_nick_changes is only really valid after the client | |
728 | * is fully registered.. | |
729 | */ | |
730 | if(client_p->localClient->number_of_nick_changes == 0) | |
731 | { | |
732 | sendto_one(client_p, form_str(ERR_NOTREGISTERED), me.name); | |
733 | client_p->localClient->number_of_nick_changes++; | |
734 | } | |
735 | ||
736 | return 0; | |
737 | } | |
738 | ||
739 | int | |
740 | m_registered(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
741 | { | |
742 | sendto_one(client_p, form_str(ERR_ALREADYREGISTRED), me.name, source_p->name); | |
743 | return 0; | |
744 | } | |
745 | ||
746 | int | |
747 | m_ignore(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
748 | { | |
749 | return 0; | |
750 | } |