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1/* proto-p10.c - IRC protocol output
2 * Copyright 2000-2004 srvx Development Team
3 *
4 * This file is part of srvx.
5 *
6 * srvx is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with srvx; if not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
19 */
20
21#include "proto-common.c"
22
23/* Full commands. */
24#define CMD_ACCOUNT "ACCOUNT"
25#define CMD_ADMIN "ADMIN"
26#define CMD_ASLL "ASLL"
27#define CMD_AWAY "AWAY"
28#define CMD_BURST "BURST"
29#define CMD_CLEARMODE "CLEARMODE"
30#define CMD_CLOSE "CLOSE"
31#define CMD_CNOTICE "CNOTICE"
32#define CMD_CONNECT "CONNECT"
33#define CMD_CPRIVMSG "CPRIVMSG"
34#define CMD_CREATE "CREATE"
35#define CMD_DESTRUCT "DESTRUCT"
36#define CMD_DESYNCH "DESYNCH"
37#define CMD_DIE "DIE"
38#define CMD_DNS "DNS"
39#define CMD_EOB "END_OF_BURST"
40#define CMD_EOB_ACK "EOB_ACK"
41#define CMD_ERROR "ERROR"
42#define CMD_FAKEHOST "FAKE"
43#define CMD_GET "GET"
44#define CMD_GLINE "GLINE"
45#define CMD_HASH "HASH"
46#define CMD_HELP "HELP"
47#define CMD_INFO "INFO"
48#define CMD_INVITE "INVITE"
49#define CMD_ISON "ISON"
50#define CMD_JOIN "JOIN"
51#define CMD_JUPE "JUPE"
52#define CMD_KICK "KICK"
53#define CMD_KILL "KILL"
54#define CMD_LINKS "LINKS"
55#define CMD_LIST "LIST"
56#define CMD_LUSERS "LUSERS"
57#define CMD_MAP "MAP"
58#define CMD_MODE "MODE"
59#define CMD_MOTD "MOTD"
60#define CMD_NAMES "NAMES"
61#define CMD_NICK "NICK"
62#define CMD_NOTICE "NOTICE"
63#define CMD_OPER "OPER"
64#define CMD_OPMODE "OPMODE"
65#define CMD_PART "PART"
66#define CMD_PASS "PASS"
67#define CMD_PING "PING"
68#define CMD_PONG "PONG"
69#define CMD_POST "POST"
70#define CMD_PRIVMSG "PRIVMSG"
71#define CMD_PRIVS "PRIVS"
72#define CMD_PROTO "PROTO"
73#define CMD_QUIT "QUIT"
74#define CMD_REHASH "REHASH"
75#define CMD_RESET "RESET"
76#define CMD_RESTART "RESTART"
77#define CMD_RPING "RPING"
78#define CMD_RPONG "RPONG"
79#define CMD_SERVER "SERVER"
80#define CMD_SERVLIST "SERVLIST"
81#define CMD_SERVSET "SERVSET"
82#define CMD_SET "SET"
83#define CMD_SETTIME "SETTIME"
84#define CMD_SILENCE "SILENCE"
85#define CMD_SQUERY "SQUERY"
86#define CMD_SQUIT "SQUIT"
87#define CMD_STATS "STATS"
88#define CMD_SVSNICK "SVSNICK"
89#define CMD_TIME "TIME"
90#define CMD_TOPIC "TOPIC"
91#define CMD_TRACE "TRACE"
92#define CMD_UPING "UPING"
93#define CMD_USER "USER"
94#define CMD_USERHOST "USERHOST"
95#define CMD_USERIP "USERIP"
96#define CMD_VERSION "VERSION"
97#define CMD_WALLCHOPS "WALLCHOPS"
98#define CMD_WALLOPS "WALLOPS"
55342ce8 99#define CMD_WALLHOPS "WALLHOPS"
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100#define CMD_WALLUSERS "WALLUSERS"
101#define CMD_WALLVOICES "WALLVOICES"
55342ce8 102#define CMD_WALLHOPS "WALLHOPS"
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103#define CMD_WHO "WHO"
104#define CMD_WHOIS "WHOIS"
105#define CMD_WHOWAS "WHOWAS"
106
107/* Tokenized commands. */
108#define TOK_ACCOUNT "AC"
109#define TOK_ADMIN "AD"
110#define TOK_ASLL "LL"
111#define TOK_AWAY "A"
112#define TOK_BURST "B"
113#define TOK_CLEARMODE "CM"
114#define TOK_CLOSE "CLOSE"
115#define TOK_CNOTICE "CN"
116#define TOK_CONNECT "CO"
117#define TOK_CPRIVMSG "CP"
118#define TOK_CREATE "C"
119#define TOK_DESTRUCT "DE"
120#define TOK_DESYNCH "DS"
121#define TOK_DIE "DIE"
122#define TOK_DNS "DNS"
123#define TOK_EOB "EB"
124#define TOK_EOB_ACK "EA"
125#define TOK_ERROR "Y"
126#define TOK_FAKEHOST "FA"
127#define TOK_GET "GET"
128#define TOK_GLINE "GL"
129#define TOK_HASH "HASH"
130#define TOK_HELP "HELP"
131#define TOK_INFO "F"
132#define TOK_INVITE "I"
133#define TOK_ISON "ISON"
134#define TOK_JOIN "J"
135#define TOK_JUPE "JU"
136#define TOK_KICK "K"
137#define TOK_KILL "D"
138#define TOK_LINKS "LI"
139#define TOK_LIST "LIST"
140#define TOK_LUSERS "LU"
141#define TOK_MAP "MAP"
142#define TOK_MODE "M"
143#define TOK_MOTD "MO"
144#define TOK_NAMES "E"
145#define TOK_NICK "N"
146#define TOK_NOTICE "O"
147#define TOK_OPER "OPER"
148#define TOK_OPMODE "OM"
149#define TOK_PART "L"
150#define TOK_PASS "PA"
151#define TOK_PING "G"
152#define TOK_PONG "Z"
153#define TOK_POST "POST"
154#define TOK_PRIVMSG "P"
155#define TOK_PRIVS "PRIVS"
156#define TOK_PROTO "PROTO"
157#define TOK_QUIT "Q"
158#define TOK_REHASH "REHASH"
159#define TOK_RESET "RESET"
160#define TOK_RESTART "RESTART"
161#define TOK_RPING "RI"
162#define TOK_RPONG "RO"
163#define TOK_SERVER "S"
164#define TOK_SERVLIST "SERVSET"
165#define TOK_SERVSET "SERVSET"
166#define TOK_SET "SET"
167#define TOK_SETTIME "SE"
168#define TOK_SILENCE "U"
169#define TOK_SQUERY "SQUERY"
170#define TOK_SQUIT "SQ"
171#define TOK_STATS "R"
172#define TOK_SVSNICK "SN"
173#define TOK_TIME "TI"
174#define TOK_TOPIC "T"
175#define TOK_TRACE "TR"
176#define TOK_UPING "UP"
177#define TOK_USER "USER"
178#define TOK_USERHOST "USERHOST"
179#define TOK_USERIP "USERIP"
180#define TOK_VERSION "V"
181#define TOK_WALLCHOPS "WC"
182#define TOK_WALLOPS "WA"
55342ce8 183#define TOK_WALLHOPS "WH"
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184#define TOK_WALLUSERS "WU"
185#define TOK_WALLVOICES "WV"
55342ce8 186#define TOK_WALLHOPS "WH"
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187#define TOK_WHO "H"
188#define TOK_WHOIS "W"
189#define TOK_WHOWAS "X"
190
191/* Protocol messages; aliased to full commands or tokens depending
192 on compile-time configuration. ircu prefers tokens WITH THE
193 EXCEPTION OF THE SERVER AND PASS COMMANDS, which cannot be
194 tokenized, because clients' (ie. a linking server) commands are
195 only checked against the full command list.
196*/
197#if defined(ENABLE_TOKENS)
198#define TYPE(NAME) TOK_ ## NAME
199#else /* !ENABLE_TOKENS */
200#define TYPE(NAME) CMD_ ## NAME
201#endif /* ENABLE_TOKENS */
202
203#define P10_ACCOUNT TYPE(ACCOUNT)
204#define P10_ADMIN TYPE(ADMIN)
205#define P10_ASLL TYPE(ASLL)
206#define P10_AWAY TYPE(AWAY)
207#define P10_BURST TYPE(BURST)
208#define P10_CLEARMODE TYPE(CLEARMODE)
209#define P10_CLOSE TYPE(CLOSE)
210#define P10_CNOTICE TYPE(CNOTICE)
211#define P10_CONNECT TYPE(CONNECT)
212#define P10_CPRIVMSG TYPE(CPRIVMSG)
213#define P10_CREATE TYPE(CREATE)
214#define P10_DESTRUCT TYPE(DESTRUCT)
215#define P10_DESYNCH TYPE(DESYNCH)
216#define P10_DIE TYPE(DIE)
217#define P10_DNS TYPE(DNS)
218#define P10_EOB TYPE(EOB)
219#define P10_EOB_ACK TYPE(EOB_ACK)
220#define P10_ERROR TYPE(ERROR)
221#define P10_FAKEHOST TYPE(FAKEHOST)
222#define P10_GET TYPE(GET)
223#define P10_GLINE TYPE(GLINE)
224#define P10_HASH TYPE(HASH)
225#define P10_HELP TYPE(HELP)
226#define P10_INFO TYPE(INFO)
227#define P10_INVITE TYPE(INVITE)
228#define P10_ISON TYPE(ISON)
229#define P10_JOIN TYPE(JOIN)
230#define P10_JUPE TYPE(JUPE)
231#define P10_KICK TYPE(KICK)
232#define P10_KILL TYPE(KILL)
233#define P10_LINKS TYPE(LINKS)
234#define P10_LIST TYPE(LIST)
235#define P10_LUSERS TYPE(LUSERS)
236#define P10_MAP TYPE(MAP)
237#define P10_MODE TYPE(MODE)
238#define P10_MOTD TYPE(MOTD)
239#define P10_NAMES TYPE(NAMES)
240#define P10_NICK TYPE(NICK)
241#define P10_NOTICE TYPE(NOTICE)
242#define P10_OPER TYPE(OPER)
243#define P10_OPMODE TYPE(OPMODE)
244#define P10_PART TYPE(PART)
245#define P10_PASS CMD_PASS
246#define P10_PING TYPE(PING)
247#define P10_PONG TYPE(PONG)
248#define P10_POST TYPE(POST)
249#define P10_PRIVMSG TYPE(PRIVMSG)
250#define P10_PRIVS TYPE(PRIVS)
251#define P10_PROTO TYPE(PROTO)
252#define P10_QUIT TYPE(QUIT)
253#define P10_REHASH TYPE(REHASH)
254#define P10_RESET TYPE(RESET)
255#define P10_RESTART TYPE(RESTART)
256#define P10_RPING TYPE(RPING)
257#define P10_RPONG TYPE(RPONG)
258#define P10_SERVER CMD_SERVER
259#define P10_SERVLIST TYPE(SERVLIST)
260#define P10_SERVSET TYPE(SERVSET)
261#define P10_SET TYPE(SET)
262#define P10_SETTIME TYPE(SETTIME)
263#define P10_SILENCE TYPE(SILENCE)
264#define P10_SQUERY TYPE(SQUERY)
265#define P10_SQUIT TYPE(SQUIT)
266#define P10_STATS TYPE(STATS)
267#define P10_SVSNICK TYPE(SVSNICK)
268#define P10_TIME TYPE(TIME)
269#define P10_TOPIC TYPE(TOPIC)
270#define P10_TRACE TYPE(TRACE)
271#define P10_UPING TYPE(UPING)
272#define P10_USER TYPE(USER)
273#define P10_USERHOST TYPE(USERHOST)
274#define P10_USERIP TYPE(USERIP)
275#define P10_VERSION TYPE(VERSION)
276#define P10_WALLCHOPS TYPE(WALLCHOPS)
277#define P10_WALLOPS TYPE(WALLOPS)
55342ce8 278#define P10_WALLHOPS TYPE(WALLHOPS)
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279#define P10_WALLUSERS TYPE(WALLUSERS)
280#define P10_WALLVOICES TYPE(WALLVOICES)
281#define P10_WHO TYPE(WHO)
282#define P10_WHOIS TYPE(WHOIS)
283#define P10_WHOWAS TYPE(WHOWAS)
284
285/* Servers claiming to have a boot or link time before PREHISTORY
286 * trigger errors to the log. We hope no server has been running
287 * constantly since September 1994. :)
288 */
289#define PREHISTORY 780000000
290
291static struct server *servers_num[64*64];
292static privmsg_func_t *privmsg_funcs;
293static unsigned int num_privmsg_funcs;
294static privmsg_func_t *notice_funcs;
295static unsigned int num_notice_funcs;
296static struct dict *unbursted_channels;
297static char *his_servername;
298static char *his_servercomment;
299
300static struct userNode *AddUser(struct server* uplink, const char *nick, const char *ident, const char *hostname, const char *modes, const char *numeric, const char *userinfo, time_t timestamp, const char *realip);
301
302extern int off_channel;
303
304/* Numerics can be XYY, XYYY, or XXYYY; with X's identifying the
305 * server and Y's indentifying the client on that server. */
306struct server*
307GetServerN(const char *numeric)
308{
309 switch (strlen(numeric)) {
310 default:
311 return servers_num[base64toint(numeric, 2)];
312 case 4:
313 case 3:
314 case 1:
315 return servers_num[base64toint(numeric, 1)];
316 case 0:
317 return NULL;
318 }
319}
320
321struct userNode*
322GetUserN(const char *numeric) /* using numeric */
323{
324 struct userNode *un;
325 struct server *s;
326 int n, slen, ulen;
327
328 switch (strlen(numeric)) {
329 default:
330 log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too long!", numeric);
331 return NULL;
332 case 5: slen = 2; ulen = 3; break;
333 case 4: slen = 1; ulen = 3; break;
334 case 3: slen = 1; ulen = 2; break;
335 case 2: case 1: case 0:
336 log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): numeric too short!", numeric);
337 return NULL;
338 }
339 if (!(s = servers_num[base64toint(numeric, slen)])) {
340 log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s): couldn't find server (len=%d)!", numeric, slen);
341 return NULL;
342 }
343 n = base64toint(numeric+slen, ulen) & s->num_mask;
344 if (!(un = s->users[n])) {
345 log_module(MAIN_LOG, LOG_WARNING, "GetUserN(%s) couldn't find user!", numeric);
346 }
347 return un;
348}
349
350static void
351privmsg_user_helper(struct userNode *un, void *data)
352{
353 struct privmsg_desc *pd = data;
354 unsigned int num = un->num_local;
355 if (!pd->is_notice) {
356 if ((num < num_privmsg_funcs) && privmsg_funcs[num]) {
357 privmsg_funcs[num](pd->user, un, pd->text, pd->is_qualified);
358 }
359 } else {
360 if ((num < num_notice_funcs) && notice_funcs[num]) {
361 notice_funcs[num](pd->user, un, pd->text, pd->is_qualified);
362 }
363 }
364}
365
366void
367irc_server(struct server *srv)
368{
369 char extranum[COMBO_NUMERIC_LEN+1];
370
371 inttobase64(extranum, srv->num_mask, (srv->numeric[1] || (srv->num_mask >= 64*64)) ? 3 : 2);
372 if (srv == self) {
373 /* The +s, ignored by Run's ircu, means "service" to Undernet's ircu */
374 putsock(P10_SERVER " %s %d %li %li J10 %s%s +s :%s",
375 srv->name, srv->hops+1, srv->boot, srv->link, srv->numeric, extranum, srv->description);
376 } else {
377 putsock("%s " P10_SERVER " %s %d %li %li %c10 %s%s +s :%s",
378 self->numeric, srv->name, srv->hops+1, srv->boot, srv->link, (srv->self_burst ? 'J' : 'P'), srv->numeric, extranum, srv->description);
379 }
380}
381
382void
383irc_user(struct userNode *user)
384{
385 char b64ip[7];
386 if (!user)
387 return;
388 inttobase64(b64ip, ntohl(user->ip.s_addr), 6);
389 if (user->modes) {
390 int modelen;
391 char modes[32];
392
393 modelen = 0;
394 if (IsOper(user))
395 modes[modelen++] = 'o';
396 if (IsInvisible(user))
397 modes[modelen++] = 'i';
398 if (IsWallOp(user))
399 modes[modelen++] = 'w';
400 if (IsService(user))
401 modes[modelen++] = 'k';
402 if (IsServNotice(user))
403 modes[modelen++] = 's';
404 if (IsDeaf(user))
405 modes[modelen++] = 'd';
406 if (IsGlobal(user))
407 modes[modelen++] = 'g';
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408 // sethost - reed/apples
409 // if (IsHelperIrcu(user))
410 if (IsSetHost(user))
d76ed9a9 411 modes[modelen++] = 'h';
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412 if (IsFakeHost(user))
413 modes[modelen++] = 'f';
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414 if (IsHiddenHost(user))
415 modes[modelen++] = 'x';
416 modes[modelen] = 0;
417
418 /* we don't need to put the + in modes because it's in the format string. */
419 putsock("%s " P10_NICK " %s %d %li %s %s +%s %s %s :%s",
420 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, modes, b64ip, user->numeric, user->info);
421 } else {
422 putsock("%s " P10_NICK " %s %d %li %s %s %s %s :%s",
423 user->uplink->numeric, user->nick, user->uplink->hops+1, user->timestamp, user->ident, user->hostname, b64ip, user->numeric, user->info);
424 }
425}
426
427void
428irc_account(struct userNode *user, const char *stamp)
429{
430 putsock("%s " P10_ACCOUNT " %s %s", self->numeric, user->numeric, stamp);
431}
432
433void
434irc_fakehost(struct userNode *user, const char *host)
435{
436 putsock("%s " P10_FAKEHOST " %s %s", self->numeric, user->numeric, host);
437}
438
439void
440irc_regnick(UNUSED_ARG(struct userNode *user))
441{
442 /* no operation here */
443}
444
445void
446irc_nick(struct userNode *user, UNUSED_ARG(const char *old_nick))
447{
448 putsock("%s " P10_NICK " %s "FMT_TIME_T, user->numeric, user->nick, now);
449}
450
451void
452irc_fetchtopic(struct userNode *from, const char *to)
453{
454 if (!from || !to)
455 return;
456 putsock("%s " P10_TOPIC " %s", from->numeric, to);
457}
458
459void
460irc_squit(struct server *srv, const char *message, const char *service_message)
461{
462 if (!service_message)
463 service_message = message;
464
465 /* Are we leaving the network? */
466 if (srv == self && cManager.uplink->state == CONNECTED) {
467 unsigned int i;
468
469 /* Quit all clients linked to me. */
470 for (i = 0; i <= self->num_mask; i++) {
471 if (!self->users[i])
472 continue;
473 irc_quit(self->users[i], service_message);
474 }
475 }
476
477 putsock("%s " P10_SQUIT " %s %d :%s", self->numeric, srv->name, 0, message);
478
479 if (srv == self) {
480 /* Force a reconnect to the currently selected server. */
481 cManager.uplink->tries = 0;
482 log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", message);
483 close_socket();
484 }
485}
486
487void
488irc_wallchops(struct userNode *from, const char *to, const char *message)
489{
490 putsock("%s " P10_WALLCHOPS " %s :%s", from->numeric, to, message);
491}
492
493void
494irc_notice(struct userNode *from, const char *to, const char *message)
495{
496 putsock("%s " P10_NOTICE " %s :%s", from->numeric, to, message);
497}
498
499void
500irc_notice_user(struct userNode *from, struct userNode *to, const char *message)
501{
502 putsock("%s " P10_NOTICE " %s :%s", from->numeric, to->numeric, message);
503}
504
505void
506irc_privmsg(struct userNode *from, const char *to, const char *message)
507{
508 putsock("%s " P10_PRIVMSG " %s :%s", from->numeric, to, message);
509}
510
511void
512irc_eob(void)
513{
514 putsock("%s " P10_EOB, self->numeric);
515}
516
517void
518irc_eob_ack(void)
519{
520 putsock("%s " P10_EOB_ACK, self->numeric);
521}
522
523void
524irc_ping(const char *payload)
525{
526 putsock("%s " P10_PING " :%s", self->numeric, payload);
527}
528
529void
530irc_pong(const char *who, const char *data)
531{
532 putsock("%s " P10_PONG " %s :%s", self->numeric, who, data);
533}
534
535void
536irc_pass(const char *passwd)
537{
538 putsock(P10_PASS " :%s", passwd);
539}
540
541void
542irc_introduce(const char *passwd)
543{
544 void timed_send_ping(void *data);
545
546 self->self_burst = self->burst = 1;
547 irc_pass(passwd);
548 irc_server(self);
549 burst_length = 0;
550 timeq_add(now + ping_freq, timed_send_ping, 0);
551}
552
553void
554irc_gline(struct server *srv, struct gline *gline)
555{
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556 putsock("%s " P10_GLINE " %s +%s %ld :<%s> %s",
557 self->numeric, (srv ? srv->numeric : "*"), gline->target, gline->expires-now, gline->issuer, gline->reason);
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558}
559
560void
561irc_settime(const char *srv_name_mask, time_t new_time)
562{
563 ioset_set_time(new_time);
564 if (!strcmp(srv_name_mask, "*"))
565 srv_name_mask = "";
566 putsock("%s " P10_SETTIME " " FMT_TIME_T " %s", self->numeric, new_time, srv_name_mask);
567}
568
569void
570irc_ungline(const char *mask)
571{
572 putsock("%s " P10_GLINE " * -%s", self->numeric, mask);
573}
574
575static void
576irc_burst(struct chanNode *chan)
577{
578 char burst_line[512];
579 int pos, base_len, len;
580 struct modeNode *mn;
581 struct banNode *bn;
2aef5f4b 582 struct exemptNode *en;
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583 long last_mode=-1;
584 unsigned int n;
585
586 base_len = sprintf(burst_line, "%s " P10_BURST " %s " FMT_TIME_T " ",
587 self->numeric, chan->name, chan->timestamp);
588 len = irc_make_chanmode(chan, burst_line+base_len);
589 pos = base_len + len;
590 if (len)
591 burst_line[pos++] = ' ';
592
593 /* dump the users */
594 for (n=0; n<chan->members.used; n++) {
595 mn = chan->members.list[n];
596 if (pos > 500) {
597 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
598 putsock("%s", burst_line);
599 pos = base_len;
600 last_mode = -1;
601 }
602 memcpy(burst_line+pos, mn->user->numeric, strlen(mn->user->numeric));
603 pos += strlen(mn->user->numeric);
604 if (mn->modes && (mn->modes != last_mode)) {
605 last_mode = mn->modes;
606 burst_line[pos++] = ':';
607 if (last_mode & MODE_CHANOP)
608 burst_line[pos++] = 'o';
55342ce8 609 if (last_mode & MODE_HALFOP)
610 burst_line[pos++] = 'h';
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611 if (last_mode & MODE_VOICE)
612 burst_line[pos++] = 'v';
613 }
614 if ((n+1)<chan->members.used)
615 burst_line[pos++] = ',';
616 }
617 if (chan->banlist.used) {
618 /* dump the bans */
619 if (pos+2+strlen(chan->banlist.list[0]->ban) > 505) {
620 burst_line[pos-1] = 0;
621 putsock("%s", burst_line);
622 pos = base_len;
623 } else {
624 burst_line[pos++] = ' ';
625 }
626
627 burst_line[pos++] = ':';
628 burst_line[pos++] = '%';
629 base_len = pos;
630 for (n=0; n<chan->banlist.used; n++) {
631 bn = chan->banlist.list[n];
632 len = strlen(bn->ban);
633 if (pos+len+1 > 510) {
634 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
635 putsock("%s", burst_line);
636 pos = base_len;
637 }
638 memcpy(burst_line+pos, bn->ban, len);
639 pos += len;
640 burst_line[pos++] = ' ';
641 }
642 }
2aef5f4b 643 if (chan->exemptlist.used) {
644 /* dump the exempt */
645 if (pos+2+strlen(chan->exemptlist.list[0]->exempt) > 505) {
646 burst_line[pos-1] = 0;
647 putsock("%s", burst_line);
648 pos = base_len;
649 } else {
650 burst_line[pos++] = ' ';
651 }
652
653 burst_line[pos++] = ' ';
654 burst_line[pos++] = '~';
655 burst_line[pos++] = ' ';
656 base_len = pos;
657 for (n=0; n<chan->exemptlist.used; n++) {
658 en = chan->exemptlist.list[n];
659 len = strlen(en->exempt);
660 if (pos+len+1 > 510) {
661 burst_line[pos-1] = 0; /* -1 to back up over the space or comma */
662 putsock("%s", burst_line);
663 pos = base_len;
664 }
665 memcpy(burst_line+pos, en->exempt, len);
666 pos += len;
667 burst_line[pos++] = ' ';
668 }
669 }
d76ed9a9
AS
670 /* print the last line */
671 burst_line[pos] = 0;
672 putsock("%s", burst_line);
673}
674
675void
676irc_quit(struct userNode *user, const char *message)
677{
678 putsock("%s " P10_QUIT " :%s", user->numeric, message);
679}
680
681void
682irc_error(const char *to, const char *message)
683{
684 if (to) {
685 putsock("%s " P10_ERROR " :%s", to, message);
686 } else {
687 putsock(":%s " P10_ERROR " :%s", self->name, message);
688 }
689}
690
691void
692irc_kill(struct userNode *from, struct userNode *target, const char *message)
693{
694 if (from) {
695 putsock("%s " P10_KILL " %s :%s!%s (%s)",
696 from->numeric, target->numeric, self->name, from->nick, message);
697 } else {
698 putsock("%s " P10_KILL " %s :%s (%s)",
699 self->numeric, target->numeric, self->name, message);
700 }
701}
702
703void
704irc_mode(struct userNode *from, struct chanNode *target, const char *modes)
705{
706 putsock("%s " P10_MODE " %s %s "FMT_TIME_T,
707 (from ? from->numeric : self->numeric),
708 target->name, modes, target->timestamp);
709}
710
711void
712irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to)
713{
714 putsock("%s " P10_INVITE " %s %s", from->numeric, who->nick, to->name);
715}
716
717void
718irc_join(struct userNode *who, struct chanNode *what)
719{
720 if (what->members.used == 1) {
721 putsock("%s " P10_CREATE " %s %lu",
722 who->numeric, what->name, what->timestamp);
723 } else {
724 putsock("%s " P10_JOIN " %s %lu", who->numeric, what->name, what->timestamp);
725 }
726}
727
728void
729irc_kick(struct userNode *who, struct userNode *target, struct chanNode *channel, const char *msg)
730{
731 const char *numeric;
732 struct modeNode *mn = GetUserMode(channel, who);
733 numeric = ((mn && (mn->modes & MODE_CHANOP)) || off_channel) ? who->numeric : self->numeric;
734 putsock("%s " P10_KICK " %s %s :%s",
735 numeric, channel->name, target->numeric, msg);
736}
737
738void
739irc_stats(struct userNode *from, struct server *target, char type)
740{
741 putsock("%s " P10_STATS " %c :%s", from->numeric, type, target->numeric);
742}
743
744void
745irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick)
746{
747 putsock("%s " P10_SVSNICK " %s %s "FMT_TIME_T, from->uplink->numeric, target->numeric, newnick, now);
748}
749
750void
751irc_part(struct userNode *who, struct chanNode *what, const char *reason)
752{
753 if (reason) {
754 putsock("%s " P10_PART " %s :%s", who->numeric, what->name, reason);
755 } else {
756 putsock("%s " P10_PART " %s", who->numeric, what->name);
757 }
758}
759
760void
761irc_topic(struct userNode *who, struct chanNode *what, const char *topic)
762{
763 putsock("%s " P10_TOPIC " %s :%s", who->numeric, what->name, topic);
764}
765
766void
767irc_raw(const char *what)
768{
769 putsock("%s", what);
770}
771
772void
773irc_numeric(struct userNode *user, unsigned int num, const char *format, ...)
774{
775 va_list arg_list;
776 char buffer[MAXLEN];
777 va_start(arg_list, format);
778 vsnprintf(buffer, MAXLEN-2, format, arg_list);
779 buffer[MAXLEN-1] = 0;
780 putsock(":%s %03d %s %s", self->name, num, user->nick, buffer);
781}
782
783static void send_burst(void);
784
785static void
786change_nicklen(int new_nicklen)
787{
788 unsigned int nn;
789 char new_nick[NICKLEN+1];
790 struct userNode *user;
791
792 nicklen = new_nicklen;
793 /* fix up any users we have here */
794 for (nn=0; nn<=self->num_mask; nn++) {
795 if (!(user = self->users[nn]))
796 continue;
797 safestrncpy(new_nick, user->nick, sizeof(new_nick));
798 new_nick[nicklen] = 0;
799 NickChange(user, new_nick, 1);
800 }
801}
802
803static CMD_FUNC(cmd_whois)
804{
805 struct userNode *from;
806 struct userNode *who;
807
808 if (argc < 3)
809 return 0;
810 if (!(from = GetUserH(origin))) {
811 log_module(MAIN_LOG, LOG_ERROR, "Could not find WHOIS origin user %s", origin);
812 return 0;
813 }
814 if(!(who = GetUserH(argv[2]))) {
815 irc_numeric(from, ERR_NOSUCHNICK, "%s@%s :No such nick", argv[2], self->name);
816 return 1;
817 }
818 if (IsHiddenHost(who) && !IsOper(from)) {
819 /* Just stay quiet. */
820 return 1;
821 }
822 irc_numeric(from, RPL_WHOISUSER, "%s %s %s * :%s", who->nick, who->ident, who->hostname, who->info);
823 if (his_servername && his_servercomment)
a32da4c7 824 irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, his_servername, his_servercomment);
d76ed9a9 825 else
a32da4c7 826 irc_numeric(from, RPL_WHOISSERVER, "%s %s :%s", who->nick, who->uplink->name, who->uplink->description);
827 if (IsOper(who))
d76ed9a9 828 irc_numeric(from, RPL_WHOISOPERATOR, "%s :is a megalomaniacal power hungry tyrant", who->nick);
d76ed9a9
AS
829 irc_numeric(from, RPL_ENDOFWHOIS, "%s :End of /WHOIS list", who->nick);
830 return 1;
831}
832
833static CMD_FUNC(cmd_server)
834{
835 struct server *srv;
836 const char *str;
837
838 if (argc < 8)
839 return 0;
a32da4c7 840 if (self->uplink) {
d76ed9a9
AS
841 /* another server introduced us */
842 srv = AddServer(GetServerH(origin), argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
843 if (!srv)
844 return 0;
845 srv->self_burst = argv[5][0] == 'J';
846 srv->burst = 1;
847 } else {
848 /* this must be our uplink */
849 srv = self->uplink = AddServer(self, argv[1], atoi(argv[2]), atoi(argv[3]), atoi(argv[4]), argv[6], argv[argc-1]);
850 if (!srv)
851 return 0;
852 srv->self_burst = argv[5][0] == 'J';
853 srv->burst = 1;
854 if ((argv[7][0] == '+') && !force_n2k) {
855 log_module(MAIN_LOG, LOG_WARNING, "Got Undernet-style SERVER message but \"force_n2k\" not on.");
856 }
857 send_burst();
858 }
859
860 /* Fix up our timestamps if necessary. */
861 if (srv->boot <= PREHISTORY) {
862 /* Server from the mists of time.. */
863 if (srv->hops == 1) {
864 log_module(MAIN_LOG, LOG_ERROR, "Server %s claims to have booted at time "FMT_TIME_T". This is absurd.", srv->name, srv->boot);
865 }
866 } else if ((str = conf_get_data("server/reliable_clock", RECDB_QSTRING))
867 && enabled_string(str)) {
868 /* If we have a reliable clock, we just keep our current time. */
869 } else {
870 if (srv->boot <= self->boot) {
871 /* The other server is older than us. Accept their timestamp.
872 * Alternately, we are same age, but we accept their time
873 * since we are linking to them. */
874 self->boot = srv->boot;
875 ioset_set_time(srv->link);
876 }
877 }
878 if (srv == self->uplink) {
879 extern time_t burst_begin;
880 burst_begin = now;
881 }
882 return 1;
883}
884
885static CMD_FUNC(cmd_eob)
886{
887 struct server *sender;
888 dict_iterator_t it;
889 unsigned int ii;
890
891 if (!(sender = GetServerH(origin)))
892 return 0;
893 if (sender == self->uplink) {
894 cManager.uplink->state = CONNECTED;
895 for (it = dict_first(unbursted_channels); it; it = iter_next(it))
896 irc_burst(iter_data(it));
897 dict_delete(unbursted_channels);
898 unbursted_channels = NULL;
899 irc_eob();
900 irc_eob_ack();
901 }
902 sender->self_burst = 0;
903 recalc_bursts(sender);
904 for (ii=0; ii<slf_used; ii++)
905 slf_list[ii](sender);
906 return 1;
907}
908
909static CMD_FUNC(cmd_eob_ack)
910{
911 extern time_t burst_begin;
912
913 if (GetServerH(origin) == self->uplink) {
914 burst_length = now - burst_begin;
915 self->self_burst = self->burst = 0;
916 }
917 cManager.uplink->state = CONNECTED;
918 return 1;
919}
920
921static CMD_FUNC(cmd_ping)
922{
923 struct server *srv;
924 struct userNode *un;
925
926 if(argc > 3)
927 irc_pong(argv[2], argv[1]);
928 else if ((srv = GetServerH(origin)))
929 irc_pong(self->name, srv->numeric);
930 else if ((un = GetUserH(origin)))
931 irc_pong(self->name, un->numeric);
932 else
933 irc_pong(self->name, origin);
934
935 timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
936 timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
937 timeq_add(now + ping_freq, timed_send_ping, 0);
938 received_ping();
939 return 1;
940}
941
942static CMD_FUNC(cmd_error_nick)
943{
944 /* Go back to original IRC length .. and try to reconnect :/ */
945 change_nicklen(9);
946 irc_squit(self, "Got erroneous nickname, truncating nicks.", NULL);
947 return 1;
948}
949
950struct create_desc {
951 struct userNode *user;
952 time_t when;
953};
954
955static void
956join_helper(struct chanNode *chan, void *data)
957{
958 struct create_desc *cd = data;
959 AddChannelUser(cd->user, chan);
960}
961
962static void
963create_helper(char *name, void *data)
964{
965 struct create_desc *cd = data;
966
967 if (!strcmp(name, "0")) {
968 while (cd->user->channels.used > 0)
969 DelChannelUser(cd->user, cd->user->channels.list[0]->channel, 0, 0);
970 return;
971 }
972
2aef5f4b 973 AddChannelUser(cd->user, AddChannel(name, cd->when, NULL, NULL, NULL));
d76ed9a9
AS
974}
975
976static CMD_FUNC(cmd_create)
977{
978 struct create_desc cd;
979 struct userNode *user;
980
981 if ((argc < 3) || !(user = GetUserH(origin)))
982 return 0;
983 cd.user = user;
984 cd.when = atoi(argv[2]);
985 parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
986 return 1;
987}
988
989static CMD_FUNC(cmd_join)
990{
991 struct create_desc cd;
992
993 if (!(cd.user = GetUserH(origin)))
994 return 0;
995 if (argc < 2)
996 return 0;
997 else if (argc < 3)
998 cd.when = now;
999 else
1000 cd.when = atoi(argv[2]);
1001 parse_foreach(argv[1], join_helper, create_helper, NULL, NULL, &cd);
1002 return 1;
1003}
1004
1005static CMD_FUNC(cmd_pong)
1006{
1007 if (argc < 3)
1008 return 0;
1009 if (!strcmp(argv[2], self->name)) {
1010 timeq_del(0, timed_send_ping, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1011 timeq_del(0, timed_ping_timeout, 0, TIMEQ_IGNORE_WHEN|TIMEQ_IGNORE_DATA);
1012 timeq_add(now + ping_freq, timed_send_ping, 0);
1013 received_ping();
1014 }
1015 return 1;
1016}
1017
1018static CMD_FUNC(cmd_nick)
1019{
1020 struct userNode *user;
1021 if ((user = GetUserH(origin))) {
1022 /* nick change (since the source is a user numeric) */
1023 if (argc < 2)
1024 return 0;
1025 NickChange(user, argv[1], 1);
1026 } else {
1027 struct server *serv;
1028 char modes[MAXLEN];
1029 /* new nick */
1030 if (argc < 9)
1031 return 0;
1032 serv = GetServerH(origin);
1033 if (argc > 9)
1034 unsplit_string(argv+6, argc-9, modes);
1035 else
1036 strcpy(modes, "+");
1037 AddUser(serv, argv[1], argv[4], argv[5], modes, argv[argc-2], argv[argc-1], atoi(argv[3]), argv[argc-3]);
1038 }
1039 return 1;
1040}
1041
1042static CMD_FUNC(cmd_account)
1043{
1044 struct userNode *user;
1045
1046 if ((argc < 3) || !origin || !GetServerH(origin))
1047 return 0; /* Origin must be server. */
1048 user = GetUserN(argv[1]);
1049 if (!user)
1050 return 1; /* A QUIT probably passed the ACCOUNT. */
1051 call_account_func(user, argv[2]);
1052 return 1;
1053}
1054
1055static CMD_FUNC(cmd_fakehost)
1056{
1057 struct userNode *user;
1058
1059 if ((argc < 3) || !origin || !GetServerH(origin))
1060 return 0;
1061 if (!(user = GetUserN(argv[1])))
1062 return 1;
1063 assign_fakehost(user, argv[2], 0);
1064 return 1;
1065}
1066
1067static CMD_FUNC(cmd_burst)
1068{
1069 extern int rel_age;
2aef5f4b 1070 char modes[MAXLEN], *members = "";
1071 static char exemptlist[MAXLEN], banlist[MAXLEN];
a32da4c7 1072 unsigned int next = 3, res = 1;
2aef5f4b 1073 int ctype = 0, echeck = 0, bcheck = 0;
d76ed9a9
AS
1074 struct chanNode *cNode;
1075 struct userNode *un;
1076 struct modeNode *mNode;
1077 long mode;
1078 char *user, *end, sep;
1079 time_t in_timestamp;
2aef5f4b 1080 char* parm = NULL;
d76ed9a9
AS
1081
1082 if (argc < 3)
1083 return 0;
1084 modes[0] = 0;
2aef5f4b 1085
1086 exemptlist[0] = 0;
1087 banlist[0] = 0;
1088
d76ed9a9
AS
1089 while (next < argc) {
1090 switch (argv[next][0]) {
1091 case '+': {
1092 const char *pos;
1093 int n_modes;
a32da4c7 1094 for (pos=argv[next], n_modes = 1; *pos; pos++)
d76ed9a9
AS
1095 if ((*pos == 'k') || (*pos == 'l'))
1096 n_modes++;
1097 unsplit_string(argv+next, n_modes, modes);
1098 next += n_modes;
1099 break;
1100 }
2aef5f4b 1101 case '%': {
1102 for(parm = mysep(&argv[next], " "); /* parm = first param */
1103 parm; /* While param is not null */
1104 parm = mysep(&argv[next], " ") /* parm = next param */
1105 )
1106 {
1107 switch (parm[0]) {
1108 case '%': {
1109 ctype = 1;
1110 break;
1111 }
1112 case '~': {
1113 ctype = 2;
1114 break;
1115 }
1116 default: {
1117 break;
1118 }
1119 }
1120 if (ctype == 1) {
1121 if (bcheck == 0) {
1122 /* strip % char off start of very first ban */
1123 strncat(banlist, strtok(parm, "%"), sizeof(banlist) - 1 - strlen(banlist));
1124 strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1125 bcheck = 1;
1126 } else {
1127 strncat(banlist, parm, sizeof(banlist) - 1 - strlen(banlist));
1128 strncat(banlist, " ", sizeof(banlist) - 1 - strlen(banlist));
1129 }
1130 } else if (ctype == 2) {
1131 if (echeck == 0) {
1132 echeck = 1;
1133 } else {
1134 strncat(exemptlist, parm, sizeof(exemptlist) - 1 - strlen(exemptlist));
1135 strncat(exemptlist, " ", sizeof(exemptlist) - 1 - strlen(exemptlist));
1136 }
1137 }
1138 }
1139 next++;
1140 break;
1141 }
a32da4c7 1142 default: members = argv[next++]; break;
2aef5f4b 1143 }
d76ed9a9
AS
1144 }
1145
1146 in_timestamp = atoi(argv[2]);
1147 if ((cNode = dict_find(unbursted_channels, argv[1], NULL))) {
1148 cNode->timestamp = in_timestamp;
1149 dict_remove(unbursted_channels, cNode->name);
1150 irc_burst(cNode);
1151 }
2aef5f4b 1152 cNode = AddChannel(argv[1], in_timestamp, modes, banlist, exemptlist);
1153
a32da4c7 1154 /* Burst channel members in now. */
d76ed9a9
AS
1155 for (user = members, sep = *members, mode = 0; sep; user = end) {
1156 for (end = user + 3; isalnum(*end) || *end == '[' || *end == ']'; end++) ;
1157 sep = *end++; end[-1] = 0;
1158 if (sep == ':') {
1159 mode = 0;
1160 while ((sep = *end++)) {
1161 if (sep == 'o')
1162 mode |= MODE_CHANOP;
55342ce8 1163 else if (sep == 'h')
1164 mode |= MODE_HALFOP;
d76ed9a9
AS
1165 else if (sep == 'v')
1166 mode |= MODE_VOICE;
1167 else
1168 break;
1169 }
1170 if (rel_age < 0)
1171 mode = 0;
1172 }
1173 if (!(un = GetUserN(user))) {
1174 res = 0;
1175 continue;
1176 }
1177 if ((mNode = AddChannelUser(un, cNode)))
1178 mNode->modes = mode;
1179 }
1180
1181 return res;
1182}
1183
1184static CMD_FUNC(cmd_mode)
1185{
1186 struct chanNode *cn;
1187 struct userNode *un;
182dd032
AS
1188 char *sethost; // sethost - reed/apples
1189 int i; // sethost - reed/apples
d76ed9a9
AS
1190
1191 if (argc < 3)
1192 return 0;
1193 if (!IsChannelName(argv[1])) {
1194 un = GetUserH(argv[1]);
1195 if (!un) {
1196 log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s whose mode is changing.", argv[1]);
1197 return 0;
1198 }
182dd032
AS
1199 // sethost - reed/apples
1200 if (argc == 3)
d76ed9a9 1201 mod_usermode(un, argv[2]);
182dd032
AS
1202 else {
1203 sethost = malloc(strlen(argv[2]) + 1 + strlen(argv[3]) + 1);
1204 i = 0;
1205 while((sethost[i++] = *argv[2]++));
1206 i--;
1207 sethost[i++] = ' ';
1208 while((sethost[i++] = *argv[3]++));
1209 mod_usermode(un, sethost); // sethost - reed/apples
1210 }
1211
d76ed9a9
AS
1212 return 1;
1213 }
1214
1215 if (!(cn = GetChannel(argv[1]))) {
1216 log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1217 return 0;
1218 }
1219 if ((un = GetUserH(origin))) {
1220 struct modeNode *mn;
1221 /* Update idle time for person setting the mode */
1222 if ((mn = GetUserMode(cn, un)))
1223 mn->idle_since = now;
1224 } else {
1225 /* If it came from a server, reset timestamp to re-sync. */
1226 cn->timestamp = atoi(argv[argc-1]);
1227 }
1228
1229 return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER|(un ? MC_NOTIFY : 0));
1230}
1231
1232static CMD_FUNC(cmd_opmode)
1233{
1234 struct chanNode *cn;
1235 struct userNode *un;
1236
1237 if (argc < 3)
1238 return 0;
1239
1240 if (!(cn = GetChannel(argv[1]))) {
1241 log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1242 return 0;
1243 }
1244 if (!(un = GetUserH(origin))) {
1245 log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting OPMODE.", origin);
1246 return 0;
1247 }
1248 if (!IsOper(un)) {
1249 log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using OPMODE.", un->nick);
1250 return 0;
1251 }
1252
1253 return mod_chanmode(un, cn, argv+2, argc-2, MCP_ALLOW_OVB|MCP_FROM_SERVER); /* do NOT announce opmode locally */
1254}
1255
1256static int clear_chanmode(struct chanNode *channel, const char *modes);
1257
1258static CMD_FUNC(cmd_clearmode)
1259{
1260 struct chanNode *cn;
1261 struct userNode *un;
1262
1263 if (argc < 3)
1264 return 0;
1265
1266 if (!(cn = GetChannel(argv[1]))) {
1267 log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose mode is changing.", argv[1]);
1268 return 0;
1269 }
1270 if (!(un = GetUserH(origin))) {
1271 log_module(MAIN_LOG, LOG_ERROR, "Unable to find user %s requesting CLEARMODE.", origin);
1272 return 0;
1273 }
1274 if (!IsOper(un)) {
1275 log_module(MAIN_LOG, LOG_ERROR, "Non-privileged user %s using CLEARMODE.", un->nick);
1276 return 0;
1277 }
1278
1279 return clear_chanmode(cn, argv[2]);
1280}
1281
1282static CMD_FUNC(cmd_topic)
1283{
1284 struct chanNode *cn;
1285 time_t chan_ts, topic_ts;
1286
1287 if (argc < 3)
1288 return 0;
1289 if (!(cn = GetChannel(argv[1]))) {
1290 log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s whose topic is being set", argv[1]);
1291 return 0;
1292 }
1293 if (argc >= 5) {
1294 /* Looks like an Asuka style topic burst. */
1295 chan_ts = atoi(argv[2]);
1296 topic_ts = atoi(argv[3]);
1297 } else {
1298 chan_ts = cn->timestamp;
1299 topic_ts = now;
1300 }
1301 SetChannelTopic(cn, GetUserH(origin), argv[argc-1], 0);
1302 cn->topic_time = topic_ts;
1303 return 1;
1304}
1305
1306static CMD_FUNC(cmd_num_topic)
1307{
1308 struct chanNode *cn;
1309
1310 if (!argv[0])
1311 return 0; /* huh? */
1312 if (argv[2]) {
1313 cn = GetChannel(argv[2]);
1314 if (!cn) {
1315 log_module(MAIN_LOG, LOG_ERROR, "Unable to find channel %s in topic reply", argv[2]);
1316 return 0;
1317 }
1318 } else
1319 return 0;
1320
1321 switch (atoi(argv[0])) {
1322 case 331:
1323 cn->topic_time = 0;
1324 break; /* no topic */
1325 case 332:
1326 if (argc < 4)
1327 return 0;
1328 safestrncpy(cn->topic, unsplit_string(argv+3, argc-3, NULL), sizeof(cn->topic));
1329 break;
1330 case 333:
1331 if (argc < 5)
1332 return 0;
1333 safestrncpy(cn->topic_nick, argv[3], sizeof(cn->topic_nick));
1334 cn->topic_time = atoi(argv[4]);
1335 break;
1336 default:
1337 return 0; /* should never happen */
1338 }
1339 return 1;
1340}
1341
1342static CMD_FUNC(cmd_num_gline)
1343{
1344 if (argc < 6)
1345 return 0;
1346 gline_add(origin, argv[3], atoi(argv[4])-now, argv[5], now, 0);
1347 return 1;
1348}
1349
1350static CMD_FUNC(cmd_quit)
1351{
1352 struct userNode *user;
1353 if (argc < 2)
1354 return 0;
1355 /* Sometimes we get a KILL then a QUIT or the like, so we don't want to
1356 * call DelUser unless we have the user in our grasp. */
1357 if ((user = GetUserH(origin)))
1358 DelUser(user, NULL, false, argv[1]);
1359 return 1;
1360}
1361
1362static CMD_FUNC(cmd_kill)
1363{
1364 struct userNode *user;
1365 if (argc < 2)
1366 return 0;
1367 user = GetUserN(argv[1]);
1368 if (!user) {
1369 /* If we get a KILL for a non-existent user, it could be a
1370 * Ghost response to a KILL we sent out earlier. So we only
1371 * whine if the target is local.
1372 */
1373 if (!strncmp(argv[1], self->numeric, strlen(self->numeric)))
1374 log_module(MAIN_LOG, LOG_ERROR, "Unable to find kill victim %s", argv[1]);
1375 return 0;
1376 }
1377
1378 if (IsLocal(user) && IsService(user)) {
1379 /* TODO: rate limit this so silly things don't happen. */
1380 ReintroduceUser(user);
1381 return 1;
1382 }
1383
1384 DelUser(user, NULL, false, argv[2]);
1385 return 1;
1386}
1387
1388static CMD_FUNC(cmd_part)
1389{
1390 struct userNode *user;
1391
1392 if (argc < 2)
1393 return 0;
1394 user = GetUserH(origin);
1395 if (!user)
1396 return 0;
1397 parse_foreach(argv[1], part_helper, NULL, NULL, NULL, user);
1398 return 1;
1399}
1400
1401static CMD_FUNC(cmd_kick)
1402{
1403 if (argc < 3)
1404 return 0;
1405 ChannelUserKicked(GetUserH(origin), GetUserN(argv[2]), GetChannel(argv[1]));
1406 return 1;
1407}
1408
1409static CMD_FUNC(cmd_squit)
1410{
1411 struct server *server;
1412
1413 if (argc < 4)
1414 return 0;
1415 if (!(server = GetServerH(argv[1])))
1416 return 0;
1417
1418 if (server == self->uplink) {
1419 /* Force a reconnect to the currently selected server. */
1420 cManager.uplink->tries = 0;
1421 log_module(MAIN_LOG, LOG_INFO, "Squitting from uplink: %s", argv[3]);
1422 close_socket();
1423 return 1;
1424 }
1425
1426 DelServer(server, 0, argv[3]);
1427 return 1;
1428}
1429
1430static CMD_FUNC(cmd_privmsg)
1431{
1432 struct privmsg_desc pd;
1433 if (argc != 3)
1434 return 0;
1435 pd.user = GetUserH(origin);
1436 if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1437 return 1;
1438 pd.is_notice = 0;
1439 pd.text = argv[2];
1440 parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1441 return 1;
1442}
1443
1444static CMD_FUNC(cmd_notice)
1445{
1446 struct privmsg_desc pd;
1447 if (argc != 3)
1448 return 0;
1449 pd.user = GetUserH(origin);
1450 if (!pd.user || (IsGagged(pd.user) && !IsOper(pd.user)))
1451 return 1;
1452 pd.is_notice = 1;
1453 pd.text = argv[2];
1454 parse_foreach(argv[1], privmsg_chan_helper, NULL, privmsg_user_helper, privmsg_invalid, &pd);
1455 return 1;
1456}
1457
1458static CMD_FUNC(cmd_away)
1459{
1460 struct userNode *uNode;
1461
1462 uNode = GetUserH(origin);
1463 if (!uNode)
1464 return 1;
1465 if (argc < 2)
1466 uNode->modes &= ~FLAGS_AWAY;
1467 else
1468 uNode->modes |= FLAGS_AWAY;
1469 return 1;
1470}
1471
1472static CMD_FUNC(cmd_gline)
1473{
1474 if (argc < 3)
1475 return 0;
1476 if (argv[2][0] == '+') {
1477 if (argc < 5)
1478 return 0;
1479 gline_add(origin, argv[2]+1, strtoul(argv[3], NULL, 0), argv[argc-1], now, 0);
1480 return 1;
1481 } else if (argv[2][0] == '-') {
1482 gline_remove(argv[2]+1, 0);
1483 return 1;
1484 } else
1485 return 0;
1486}
1487
1488static CMD_FUNC(cmd_svsnick)
1489{
1490 struct userNode *target, *dest;
1491 if ((argc < 4)
1492 || !(target = GetUserN(argv[1]))
1493 || !IsLocal(target)
1494 || (dest = GetUserH(argv[2])))
1495 return 0;
1496 NickChange(target, argv[2], 0);
1497 return 1;
1498}
1499
1500static oper_func_t *of_list;
1501static unsigned int of_size = 0, of_used = 0;
1502
1503void
1504free_user(struct userNode *user)
1505{
1506 free(user->nick);
1507 free(user);
1508}
1509
1510static void
1511parse_cleanup(void)
1512{
1513 unsigned int nn;
1514 free(of_list);
1515 free(privmsg_funcs);
1516 free(notice_funcs);
1517 free(mcf_list);
1518 dict_delete(irc_func_dict);
1519 for (nn=0; nn<dead_users.used; nn++)
1520 free_user(dead_users.list[nn]);
1521 userList_clean(&dead_users);
1522}
1523
1524static void
1525p10_conf_reload(void) {
1526 hidden_host_suffix = conf_get_data("server/hidden_host", RECDB_QSTRING);
1527}
1528
1529static void
1530remove_unbursted_channel(struct chanNode *cNode) {
1531 if (unbursted_channels)
1532 dict_remove(unbursted_channels, cNode->name);
1533}
1534
1535void
1536init_parse(void)
1537{
1538 const char *str, *desc;
1539 int numnick, usermask, max_users;
1540 char numer[COMBO_NUMERIC_LEN+1];
1541
1542 /* read config items */
1543 str = conf_get_data("server/ping_freq", RECDB_QSTRING);
1544 ping_freq = str ? ParseInterval(str) : 120;
1545 str = conf_get_data("server/ping_timeout", RECDB_QSTRING);
1546 ping_timeout = str ? ParseInterval(str) : 30;
1547 str = conf_get_data("server/force_n2k", RECDB_QSTRING);
1548 force_n2k = str ? enabled_string(str) : 1;
1549 str = conf_get_data("server/numeric", RECDB_QSTRING);
1550 if (!str) {
1551 log_module(MAIN_LOG, LOG_ERROR, "No server/numeric entry in config file.");
1552 exit(1);
1553 }
1554 numnick = atoi(str);
1555 str = conf_get_data("server/max_users", RECDB_QSTRING);
1556 max_users = str ? atoi(str) : 4096;
1557 for (usermask = 4; usermask < max_users; usermask <<= 1) ;
1558 usermask--;
1559 if ((numnick < 64) && (usermask < 4096) && !force_n2k)
1560 inttobase64(numer, (numnick << 12) + (usermask & 0x00fff), 3);
1561 else
1562 inttobase64(numer, (numnick << 18) + (usermask & 0x3ffff), 5);
1563
1564 str = conf_get_data("server/his_servername", RECDB_QSTRING);
1565 his_servername = str ? strdup(str) : NULL;
1566 str = conf_get_data("server/his_servercomment", RECDB_QSTRING);
1567 his_servercomment = str ? strdup(str) : NULL;
1568
1569 str = conf_get_data("server/hostname", RECDB_QSTRING);
1570 desc = conf_get_data("server/description", RECDB_QSTRING);
1571 if (!str || !desc) {
1572 log_module(MAIN_LOG, LOG_ERROR, "No server/hostname entry in config file.");
1573 exit(1);
1574 }
1575 self = AddServer(NULL, str, 0, boot_time, now, numer, desc);
1576 conf_register_reload(p10_conf_reload);
1577
1578 irc_func_dict = dict_new();
1579 dict_insert(irc_func_dict, CMD_BURST, cmd_burst);
1580 dict_insert(irc_func_dict, TOK_BURST, cmd_burst);
1581 dict_insert(irc_func_dict, CMD_CREATE, cmd_create);
1582 dict_insert(irc_func_dict, TOK_CREATE, cmd_create);
1583 dict_insert(irc_func_dict, CMD_EOB, cmd_eob);
1584 dict_insert(irc_func_dict, TOK_EOB, cmd_eob);
1585 dict_insert(irc_func_dict, CMD_EOB_ACK, cmd_eob_ack);
1586 dict_insert(irc_func_dict, TOK_EOB_ACK, cmd_eob_ack);
1587 dict_insert(irc_func_dict, CMD_MODE, cmd_mode);
1588 dict_insert(irc_func_dict, TOK_MODE, cmd_mode);
1589 dict_insert(irc_func_dict, CMD_NICK, cmd_nick);
1590 dict_insert(irc_func_dict, TOK_NICK, cmd_nick);
1591 dict_insert(irc_func_dict, CMD_ACCOUNT, cmd_account);
1592 dict_insert(irc_func_dict, TOK_ACCOUNT, cmd_account);
1593 dict_insert(irc_func_dict, CMD_FAKEHOST, cmd_fakehost);
1594 dict_insert(irc_func_dict, TOK_FAKEHOST, cmd_fakehost);
1595 dict_insert(irc_func_dict, CMD_PASS, cmd_pass);
1596 dict_insert(irc_func_dict, TOK_PASS, cmd_pass);
1597 dict_insert(irc_func_dict, CMD_PING, cmd_ping);
1598 dict_insert(irc_func_dict, TOK_PING, cmd_ping);
1599 dict_insert(irc_func_dict, CMD_PRIVMSG, cmd_privmsg);
1600 dict_insert(irc_func_dict, TOK_PRIVMSG, cmd_privmsg);
1601 dict_insert(irc_func_dict, CMD_PONG, cmd_pong);
1602 dict_insert(irc_func_dict, TOK_PONG, cmd_pong);
1603 dict_insert(irc_func_dict, CMD_QUIT, cmd_quit);
1604 dict_insert(irc_func_dict, TOK_QUIT, cmd_quit);
1605 dict_insert(irc_func_dict, CMD_SERVER, cmd_server);
1606 dict_insert(irc_func_dict, TOK_SERVER, cmd_server);
1607 dict_insert(irc_func_dict, CMD_JOIN, cmd_join);
1608 dict_insert(irc_func_dict, TOK_JOIN, cmd_join);
1609 dict_insert(irc_func_dict, CMD_PART, cmd_part);
1610 dict_insert(irc_func_dict, TOK_PART, cmd_part);
1611 dict_insert(irc_func_dict, CMD_ERROR, cmd_error);
1612 dict_insert(irc_func_dict, TOK_ERROR, cmd_error);
1613 dict_insert(irc_func_dict, CMD_TOPIC, cmd_topic);
1614 dict_insert(irc_func_dict, TOK_TOPIC, cmd_topic);
1615 dict_insert(irc_func_dict, CMD_AWAY, cmd_away);
1616 dict_insert(irc_func_dict, TOK_AWAY, cmd_away);
1617 dict_insert(irc_func_dict, CMD_SILENCE, cmd_dummy);
1618 dict_insert(irc_func_dict, TOK_SILENCE, cmd_dummy);
1619 dict_insert(irc_func_dict, CMD_KICK, cmd_kick);
1620 dict_insert(irc_func_dict, TOK_KICK, cmd_kick);
1621 dict_insert(irc_func_dict, CMD_SQUIT, cmd_squit);
1622 dict_insert(irc_func_dict, TOK_SQUIT, cmd_squit);
1623 dict_insert(irc_func_dict, CMD_KILL, cmd_kill);
1624 dict_insert(irc_func_dict, TOK_KILL, cmd_kill);
1625 dict_insert(irc_func_dict, CMD_NOTICE, cmd_notice);
1626 dict_insert(irc_func_dict, TOK_NOTICE, cmd_notice);
1627 dict_insert(irc_func_dict, CMD_STATS, cmd_stats);
1628 dict_insert(irc_func_dict, TOK_STATS, cmd_stats);
1629 dict_insert(irc_func_dict, CMD_SVSNICK, cmd_svsnick);
1630 dict_insert(irc_func_dict, TOK_SVSNICK, cmd_svsnick);
1631 dict_insert(irc_func_dict, CMD_WHOIS, cmd_whois);
1632 dict_insert(irc_func_dict, TOK_WHOIS, cmd_whois);
1633 dict_insert(irc_func_dict, CMD_GLINE, cmd_gline);
1634 dict_insert(irc_func_dict, TOK_GLINE, cmd_gline);
1635 dict_insert(irc_func_dict, CMD_OPMODE, cmd_opmode);
1636 dict_insert(irc_func_dict, TOK_OPMODE, cmd_opmode);
1637 dict_insert(irc_func_dict, CMD_CLEARMODE, cmd_clearmode);
1638 dict_insert(irc_func_dict, TOK_CLEARMODE, cmd_clearmode);
1639 dict_insert(irc_func_dict, CMD_VERSION, cmd_version);
1640 dict_insert(irc_func_dict, TOK_VERSION, cmd_version);
1641 dict_insert(irc_func_dict, CMD_ADMIN, cmd_admin);
1642 dict_insert(irc_func_dict, TOK_ADMIN, cmd_admin);
1643
1644 /* In P10, DESTRUCT doesn't do anything except be broadcast to servers.
1645 * Apparently to obliterate channels from any servers that think they
1646 * exist?
1647 */
1648 dict_insert(irc_func_dict, CMD_DESTRUCT, cmd_dummy);
1649 dict_insert(irc_func_dict, TOK_DESTRUCT, cmd_dummy);
1650 /* Ignore invites */
1651 dict_insert(irc_func_dict, CMD_INVITE, cmd_dummy);
1652 dict_insert(irc_func_dict, TOK_INVITE, cmd_dummy);
1653 /* DESYNCH is just informational, so ignore it */
1654 dict_insert(irc_func_dict, CMD_DESYNCH, cmd_dummy);
1655 dict_insert(irc_func_dict, TOK_DESYNCH, cmd_dummy);
1656 /* Ignore channel operator notices. */
1657 dict_insert(irc_func_dict, CMD_WALLCHOPS, cmd_dummy);
1658 dict_insert(irc_func_dict, TOK_WALLCHOPS, cmd_dummy);
1659 dict_insert(irc_func_dict, CMD_WALLVOICES, cmd_dummy);
1660 dict_insert(irc_func_dict, TOK_WALLVOICES, cmd_dummy);
55342ce8 1661 dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1662 dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
d76ed9a9
AS
1663 /* Ignore opers being silly. */
1664 dict_insert(irc_func_dict, CMD_WALLOPS, cmd_dummy);
1665 dict_insert(irc_func_dict, TOK_WALLOPS, cmd_dummy);
55342ce8 1666 dict_insert(irc_func_dict, CMD_WALLHOPS, cmd_dummy);
1667 dict_insert(irc_func_dict, TOK_WALLHOPS, cmd_dummy);
d76ed9a9
AS
1668 /* We have reliable clock! Always! Wraaa! */
1669 dict_insert(irc_func_dict, CMD_SETTIME, cmd_dummy);
1670 dict_insert(irc_func_dict, TOK_SETTIME, cmd_dummy);
1671 /* handle topics */
1672 dict_insert(irc_func_dict, "331", cmd_num_topic);
1673 dict_insert(irc_func_dict, "332", cmd_num_topic);
1674 dict_insert(irc_func_dict, "333", cmd_num_topic);
1675 dict_insert(irc_func_dict, "345", cmd_dummy); /* blah has been invited to blah */
1676 dict_insert(irc_func_dict, "432", cmd_error_nick); /* Erroneus [sic] nickname */
1677 /* ban list resetting */
1678 /* "stats g" responses */
1679 dict_insert(irc_func_dict, "247", cmd_num_gline);
1680 dict_insert(irc_func_dict, "219", cmd_dummy); /* "End of /STATS report" */
1681 /* other numeric responses we might get */
1682 dict_insert(irc_func_dict, "401", cmd_dummy); /* target left network */
1683 dict_insert(irc_func_dict, "403", cmd_dummy); /* no such channel */
1684 dict_insert(irc_func_dict, "404", cmd_dummy); /* cannot send to channel */
1685 dict_insert(irc_func_dict, "441", cmd_dummy); /* target isn't on that channel */
1686 dict_insert(irc_func_dict, "442", cmd_dummy); /* you aren't on that channel */
1687 dict_insert(irc_func_dict, "443", cmd_dummy); /* is already on channel (after invite?) */
1688 dict_insert(irc_func_dict, "461", cmd_dummy); /* Not enough parameters (after TOPIC w/ 0 args) */
1689 dict_insert(irc_func_dict, "467", cmd_dummy); /* Channel key already set */
1690
1691 num_privmsg_funcs = 16;
1692 privmsg_funcs = malloc(sizeof(privmsg_func_t)*num_privmsg_funcs);
1693 memset(privmsg_funcs, 0, sizeof(privmsg_func_t)*num_privmsg_funcs);
1694
1695 num_notice_funcs = 16;
1696 notice_funcs = malloc(sizeof(privmsg_func_t)*num_notice_funcs);
1697 memset(notice_funcs, 0, sizeof(privmsg_func_t)*num_notice_funcs);
1698
1699 userList_init(&dead_users);
1700 reg_del_channel_func(remove_unbursted_channel);
1701 reg_exit_func(parse_cleanup);
1702}
1703
1704int
1705parse_line(char *line, int recursive)
1706{
1707 char *argv[MAXNUMPARAMS], *origin;
1708 int argc, cmd, res=0;
1709 cmd_func_t *func;
1710
1711 argc = split_line(line, true, MAXNUMPARAMS, argv);
1712 cmd = self->uplink || !argv[0][1] || !argv[0][2];
1713 if (argc > cmd) {
1714 if (cmd) {
1715 if (argv[0][0] == ':') {
1716 origin = argv[0]+1;
1717 } else if (!argv[0][1] || !argv[0][2]) {
1718 struct server *sNode = GetServerN(argv[0]);
1719 origin = sNode ? sNode->name : 0;
1720 } else {
1721 struct userNode *uNode = GetUserN(argv[0]);
1722 origin = uNode ? uNode->nick : 0;
1723 }
1724 } else
1725 origin = 0;
1726 if ((func = dict_find(irc_func_dict, argv[cmd], NULL)))
1727 res = func(origin, argc-cmd, argv+cmd);
1728 }
1729 if (!res) {
1730 log_module(MAIN_LOG, LOG_ERROR, "PARSE ERROR on line: %s", unsplit_string(argv, argc, NULL));
1731 } else if (!recursive) {
1732 unsigned int i;
1733 for (i=0; i<dead_users.used; i++)
1734 free_user(dead_users.list[i]);
1735 dead_users.used = 0;
1736 }
1737 return res;
1738}
1739
1740static void
1741parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data)
1742{
1743 char *j, old;
1744 do {
1745 j = target_list;
1746 while (*j != 0 && *j != ',')
1747 j++;
1748 old = *j;
1749 *j = 0;
1750 if (IsChannelName(target_list)
1751 || (target_list[0] == '0' && target_list[1] == '\0')) {
1752 struct chanNode *chan = GetChannel(target_list);
1753 if (chan) {
1754 if (cf)
1755 cf(chan, data);
1756 } else {
1757 if (nc)
1758 nc(target_list, data);
1759 }
1760 } else {
1761 struct userNode *user;
1762 struct privmsg_desc *pd = data;
1763
1764 pd->is_qualified = 0;
1765 if (*target_list == '@') {
1766 user = NULL;
1767 } else if (strchr(target_list, '@')) {
1768 struct server *server;
1769
1770 pd->is_qualified = 1;
1771 user = GetUserH(strtok(target_list, "@"));
1772 server = GetServerH(strtok(NULL, "@"));
1773
1774 if (user && (user->uplink != server)) {
1775 /* Don't attempt to index into any arrays
1776 using a user's numeric on another server. */
1777 user = NULL;
1778 }
1779 } else {
1780 user = GetUserN(target_list);
1781 }
1782
1783 if (user) {
1784 if (uf)
1785 uf(user, data);
1786 } else {
1787 if (nu)
1788 nu(target_list, data);
1789 }
1790 }
1791 target_list = j+1;
1792 } while (old == ',');
1793}
1794
1795static int
1796get_local_numeric(void)
1797{
1798 static unsigned int next_numeric = 0;
1799 if (self->clients > self->num_mask)
1800 return -1;
1801 while (self->users[next_numeric])
1802 if (++next_numeric > self->num_mask)
1803 next_numeric = 0;
1804 return next_numeric;
1805}
1806
1807static void
1808make_numeric(struct server *svr, int local_num, char *outbuf)
1809{
1810 int slen, llen;
1811
1812 if (force_n2k || svr->numeric[1]) {
1813 slen = 2;
1814 llen = 3;
1815 } else {
1816 slen = 1;
1817 llen = (local_num < 64*64) ? 2 : 3;
1818 }
1819 strncpy(outbuf, svr->numeric, slen);
1820 inttobase64(outbuf+slen, local_num, llen);
1821 outbuf[slen+llen] = 0;
1822}
1823
1824struct server *
1825AddServer(struct server *uplink, const char *name, int hops, time_t boot, time_t link, const char *numeric, const char *description)
1826{
1827 struct server* sNode;
1828 int slen, mlen;
1829
1830 if ((sNode = GetServerN(numeric))) {
1831 /* This means we're trying to re-add an existant server.
1832 * To be safe, we should forget the previous incarnation.
1833 * (And all its linked servers.)
1834 *
1835 * It usually only happens in replays when the original
1836 * had a ping timeout and the replay didn't (because
1837 * replaying a ping timeout invariably gets things wrong).
1838 */
1839 DelServer(sNode, 0, NULL);
1840 }
1841
1842 switch (strlen(numeric)) {
1843 case 5: slen = 2; mlen = 3; break;
1844 case 4: slen = 1; mlen = 3; break;
1845 case 3: slen = 1; mlen = 2; break;
1846 default:
1847 log_module(MAIN_LOG, LOG_ERROR, "AddServer(\"%s\", \"%s\", ...): Numeric %s has invalid length.", uplink->name, name, numeric);
1848 return NULL;
1849 }
1850
1851 sNode = calloc(1, sizeof(*sNode));
1852 sNode->uplink = uplink;
1853 safestrncpy(sNode->name, name, sizeof(sNode->name));
1854 sNode->num_mask = base64toint(numeric+slen, mlen);
1855 sNode->hops = hops;
1856 sNode->boot = boot;
1857 sNode->link = link;
1858 strncpy(sNode->numeric, numeric, slen);
1859 safestrncpy(sNode->description, description, sizeof(sNode->description));
1860 sNode->users = calloc(sNode->num_mask+1, sizeof(*sNode->users));
1861 serverList_init(&sNode->children);
1862 if (sNode->uplink) {
1863 /* uplink may be NULL if we're just building ourself */
1864 serverList_append(&sNode->uplink->children, sNode);
1865 }
1866 servers_num[base64toint(numeric, slen)] = sNode;
1867 dict_insert(servers, sNode->name, sNode);
1868 return sNode;
1869}
1870
1871void DelServer(struct server* serv, int announce, const char *message)
1872{
1873 unsigned int i;
1874
1875 /* If we receive an ERROR command before the SERVER
1876 * command a NULL server can be passed */
1877 if (!serv)
1878 return;
1879
1880 /* Hrm, what's the right way to SQUIT some other server?
1881 * (This code is only to handle killing juped servers.) */
1882 if (announce && (serv->uplink == self) && (serv != self->uplink))
1883 irc_squit(serv, message, NULL);
1884
1885 /* must recursively remove servers linked to this one first */
1886 for (i=serv->children.used;i>0;)
1887 if (serv->children.list[--i] != self)
1888 DelServer(serv->children.list[i], false, NULL);
1889
1890 /* clean up server's user hash tables */
1891 for (i=0;i<=serv->num_mask;i++)
1892 if (serv->users[i])
1893 DelUser(serv->users[i], NULL, false, "server delinked");
1894
1895 /* delete server */
1896 if (serv->uplink)
1897 serverList_remove(&serv->uplink->children, serv);
1898 if (serv == self->uplink)
1899 self->uplink = NULL;
1900 servers_num[base64toint(serv->numeric, strlen(serv->numeric))] = NULL;
1901 dict_remove(servers, serv->name);
1902 serverList_clean(&serv->children);
1903 free(serv->users);
1904 free(serv);
1905}
1906
1907struct userNode *
a32da4c7 1908AddService(const char *nick, const char *modes, const char *desc, const char *hostname)
d76ed9a9
AS
1909{
1910 char numeric[COMBO_NUMERIC_LEN+1];
1911 int local_num = get_local_numeric();
1912 time_t timestamp = now;
1913 struct userNode *old_user = GetUserH(nick);
1914
1915 if (old_user) {
1916 if (IsLocal(old_user))
1917 return old_user;
1918 timestamp = old_user->timestamp - 1;
1919 }
1920 if (local_num == -1) {
1921 log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for service %s", nick);
1922 return 0;
1923 }
1924 if (!hostname)
1925 hostname = self->name;
1926 make_numeric(self, local_num, numeric);
a32da4c7 1927 return AddUser(self, nick, nick, hostname, modes ? modes : "+oik", numeric, desc, now, "AAAAAA");
d76ed9a9
AS
1928}
1929
1930struct userNode *
1931AddClone(const char *nick, const char *ident, const char *hostname, const char *desc)
1932{
1933 char numeric[COMBO_NUMERIC_LEN+1];
1934 int local_num = get_local_numeric();
1935 time_t timestamp = now;
1936 struct userNode *old_user = GetUserH(nick);
1937
1938 if (old_user) {
1939 if (IsLocal(old_user))
1940 return old_user;
1941 timestamp = old_user->timestamp - 1;
1942 }
1943 if (local_num == -1) {
1944 log_module(MAIN_LOG, LOG_ERROR, "Unable to allocate numnick for clone %s", nick);
1945 return 0;
1946 }
1947 make_numeric(self, local_num, numeric);
1948 return AddUser(self, nick, ident, hostname, "+i", numeric, desc, timestamp, "AAAAAA");
1949}
1950
1951int
1952is_valid_nick(const char *nick) {
1953 /* IRC has some of The Most Fucked-Up ideas about character sets
1954 * in the world.. */
1955 if (!isalpha(*nick) && !strchr("{|}~[\\]^_`", *nick))
1956 return 0;
1957 for (++nick; *nick; ++nick)
1958 if (!isalnum(*nick) && !strchr("{|}~[\\]^-_`", *nick))
1959 return 0;
1960 if (strlen(nick) > nicklen)
1961 return 0;
1962 return 1;
1963}
1964
1965static struct userNode*
1966AddUser(struct server* uplink, const char *nick, const char *ident, const char *hostname, const char *modes, const char *numeric, const char *userinfo, time_t timestamp, const char *realip)
1967{
1968 struct userNode *oldUser, *uNode;
1969 unsigned int n, ignore_user;
1970
1971 if ((strlen(numeric) < 3) || (strlen(numeric) > 5)) {
1972 log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): numeric %s wrong length!", uplink, nick, numeric);
1973 return NULL;
1974 }
1975
1976 if (!uplink) {
1977 log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s doesn't exist!", uplink, nick, numeric);
1978 return NULL;
1979 }
1980
1981 if (uplink != GetServerN(numeric)) {
1982 log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): server for numeric %s differs from nominal uplink %s.", uplink, nick, numeric, uplink->name);
1983 return NULL;
1984 }
1985
1986 if (!is_valid_nick(nick)) {
1987 log_module(MAIN_LOG, LOG_WARNING, "AddUser(%p, %s, ...): invalid nickname detected.", uplink, nick);
1988 return NULL;
1989 }
1990
1991 ignore_user = 0;
1992 if ((oldUser = GetUserH(nick))) {
1993 if (IsLocal(oldUser) && (IsService(oldUser) || IsPersistent(oldUser))) {
1994 /* The service should collide the new user off. */
1995 oldUser->timestamp = timestamp - 1;
1996 irc_user(oldUser);
1997 }
1998 if (oldUser->timestamp > timestamp) {
1999 /* "Old" user is really newer; remove them */
2000 DelUser(oldUser, 0, 1, "Overruled by older nick");
2001 } else {
2002 /* User being added is too new; do not add them to
2003 * clients, but do add them to the server's list, since it
2004 * will send a KILL and QUIT soon. */
2005 ignore_user = 1;
2006 }
2007 }
2008
2009 /* create new usernode and set all values */
2010 uNode = calloc(1, sizeof(*uNode));
2011 uNode->nick = strdup(nick);
2012 safestrncpy(uNode->ident, ident, sizeof(uNode->ident));
2013 safestrncpy(uNode->info, userinfo, sizeof(uNode->info));
2014 safestrncpy(uNode->hostname, hostname, sizeof(uNode->hostname));
2015 safestrncpy(uNode->numeric, numeric, sizeof(uNode->numeric));
2016 uNode->ip.s_addr = htonl(base64toint(realip, 6));
2017 uNode->timestamp = timestamp;
2018 modeList_init(&uNode->channels);
2019 uNode->uplink = uplink;
2020 if (++uNode->uplink->clients > uNode->uplink->max_clients) {
2021 uNode->uplink->max_clients = uNode->uplink->clients;
2022 }
2023 uNode->num_local = base64toint(numeric+strlen(uNode->uplink->numeric), 3) & uNode->uplink->num_mask;
2024 uNode->uplink->users[uNode->num_local] = uNode;
2025 mod_usermode(uNode, modes);
2026 if (ignore_user)
2027 return uNode;
2028
2029 dict_insert(clients, uNode->nick, uNode);
2030 if (dict_size(clients) > max_clients) {
2031 max_clients = dict_size(clients);
2032 max_clients_time = now;
2033 }
2034 if (IsLocal(uNode))
2035 irc_user(uNode);
2036 for (n=0; n<nuf_used; n++)
2037 if (nuf_list[n](uNode))
2038 break;
2039 return uNode;
2040}
2041
2042/* removes user from it's server's hash table and nick hash table */
2043void
2044DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why)
2045{
2046 unsigned int n;
2047
2048 /* mark them as dead, in case anybody cares */
2049 user->dead = 1;
2050
2051 /* remove user from all channels */
2052 while (user->channels.used > 0)
2053 DelChannelUser(user, user->channels.list[user->channels.used-1]->channel, false, 0);
2054
2055 /* Call these in reverse order so ChanServ can update presence
2056 information before NickServ nukes the handle_info. */
2057 for (n = duf_used; n > 0; )
2058 duf_list[--n](user, killer, why);
2059
2060 user->uplink->clients--;
2061 user->uplink->users[user->num_local] = NULL;
2062 if (IsOper(user))
2063 userList_remove(&curr_opers, user);
2064 /* remove from global dictionary, but not if after a collide */
2065 if (user == dict_find(clients, user->nick, NULL))
2066 dict_remove(clients, user->nick);
2067
2068 if (IsInvisible(user))
2069 invis_clients--;
2070
2071 if (announce) {
2072 if (IsLocal(user))
2073 irc_quit(user, why);
2074 else
2075 irc_kill(killer, user, why);
2076 }
2077
2078 modeList_clean(&user->channels);
2079 /* We don't free them, in case we try to privmsg them or something
2080 * (like when a stupid oper kills themself). We just put them onto
2081 * a list of clients that get freed after processing each line.
2082 */
2083 if (dead_users.size)
2084 userList_append(&dead_users, user);
2085 else
2086 free_user(user);
2087}
2088
2089void mod_usermode(struct userNode *user, const char *mode_change) {
2090 static void call_oper_funcs(struct userNode *user);
2091 int add = 1;
2092 const char *word = mode_change;
2093
2094 if (!user || !mode_change)
2095 return;
a32da4c7 2096 while (*word != ' ' && *word) word++;
2097 while (*word == ' ') word++;
d76ed9a9
AS
2098 while (1) {
2099#define do_user_mode(FLAG) do { if (add) user->modes |= FLAG; else user->modes &= ~FLAG; } while (0)
2100 switch (*mode_change++) {
2101 case 0: case ' ': return;
2102 case '+': add = 1; break;
2103 case '-': add = 0; break;
2104 case 'o':
2105 do_user_mode(FLAGS_OPER);
2106 if (add) {
2107 userList_append(&curr_opers, user);
2108 call_oper_funcs(user);
2109 } else {
2110 userList_remove(&curr_opers, user);
2111 }
2112 break;
2113 case 'O': do_user_mode(FLAGS_LOCOP); break;
2114 case 'i': do_user_mode(FLAGS_INVISIBLE);
2115 if (add)
2116 invis_clients++;
2117 else
2118 invis_clients--;
2119 break;
2120 case 'w': do_user_mode(FLAGS_WALLOP); break;
2121 case 's': do_user_mode(FLAGS_SERVNOTICE); break;
2122 case 'd': do_user_mode(FLAGS_DEAF); break;
2123 case 'k': do_user_mode(FLAGS_SERVICE); break;
2124 case 'g': do_user_mode(FLAGS_GLOBAL); break;
182dd032
AS
2125 // sethost - reed/apples
2126 // case 'h': do_user_mode(FLAGS_HELPER); break;
2127 // I check if there's an 'h' in the first part, and if there,
2128 // then everything after the space becomes their new host.
2129 case 'h': do_user_mode(FLAGS_SETHOST);
2130 if (*word) {
2131 char sethost[MAXLEN];
2132 unsigned int ii;
2133 for (ii=0; (*word != ' ') && (*word != '\0'); )
2134 sethost[ii++] = *word++;
2135 sethost[ii] = 0;
2136 while (*word == ' ')
2137 word++;
2138 safestrncpy(user->sethost, sethost, sizeof(user->sethost));
2139 }
2140 break;
d76ed9a9
AS
2141 case 'x': do_user_mode(FLAGS_HIDDEN_HOST); break;
2142 case 'r':
2143 if (*word) {
2144 char tag[MAXLEN];
2145 unsigned int ii;
2146 for (ii=0; (*word != ' ') && (*word != '\0'); )
2147 tag[ii++] = *word++;
2148 tag[ii] = 0;
2149 while (*word == ' ')
2150 word++;
2151 call_account_func(user, tag);
2152 }
2153 break;
2154 case 'f':
2155 if (*word) {
2156 char host[MAXLEN];
2157 unsigned int ii;
2158 for (ii=0; (*word != ' ') && (*word != '\0'); )
2159 host[ii++] = *word++;
2160 host[ii] = 0;
2161 while (*word == ' ')
2162 word++;
2163 assign_fakehost(user, host, 0);
2164 }
2165 break;
2166 }
2167#undef do_user_mode
2168 }
2169}
2170
2171struct mod_chanmode *
2172mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags)
2173{
2174 struct mod_chanmode *change;
2175 unsigned int ii, in_arg, ch_arg, add;
2176
2177 if (argc == 0)
2178 return NULL;
2179 if (!(change = mod_chanmode_alloc(argc - 1)))
2180 return NULL;
2181
2182 for (ii = ch_arg = 0, in_arg = add = 1;
2183 (modes[0][ii] != '\0') && (modes[0][ii] != ' ');
2184 ++ii) {
2185 switch (modes[0][ii]) {
2186 case '+':
2187 add = 1;
2188 break;
2189 case '-':
2190 add = 0;
2191 break;
2192#define do_chan_mode(FLAG) do { if (add) change->modes_set |= (FLAG), change->modes_clear &= ~(FLAG); else change->modes_clear |= (FLAG), change->modes_set &= ~(FLAG); } while(0)
2193 case 'C': do_chan_mode(MODE_NOCTCPS); break;
2194 case 'D': do_chan_mode(MODE_DELAYJOINS); break;
2195 case 'c': do_chan_mode(MODE_NOCOLORS); break;
2196 case 'i': do_chan_mode(MODE_INVITEONLY); break;
2197 case 'm': do_chan_mode(MODE_MODERATED); break;
2198 case 'n': do_chan_mode(MODE_NOPRIVMSGS); break;
2199 case 'p': do_chan_mode(MODE_PRIVATE); break;
2200 case 'r': do_chan_mode(MODE_REGONLY); break;
2201 case 's': do_chan_mode(MODE_SECRET); break;
2202 case 't': do_chan_mode(MODE_TOPICLIMIT); break;
d0cb2fb6
AS
2203 case 'S': do_chan_mode(MODE_STRIPCOLOR); break;
2204 case 'M': do_chan_mode(MODE_MODUNREG); break;
2205 case 'N': do_chan_mode(MODE_NONOTICE); break;
2206 case 'Q': do_chan_mode(MODE_NOQUITMSGS); break;
2207 case 'T': do_chan_mode(MODE_NOAMSG); break;
2208 case 'O': do_chan_mode(MODE_OPERSONLY); break;
2209// uncomment this when ssl is enabled on the network.
2210// case 'z': do_chan_mode(MODE_SSLONLY); break;
d76ed9a9
AS
2211#undef do_chan_mode
2212 case 'l':
2213 if (add) {
2214 if (in_arg >= argc)
2215 goto error;
2216 change->modes_set |= MODE_LIMIT;
2217 change->new_limit = atoi(modes[in_arg++]);
2218 } else {
2219 change->modes_set &= ~MODE_LIMIT;
2220 change->modes_clear |= MODE_LIMIT;
2221 }
2222 break;
2223 case 'k':
2224 if (add) {
2225 if (in_arg >= argc)
2226 goto error;
2227 change->modes_set |= MODE_KEY;
2228 safestrncpy(change->new_key, modes[in_arg++], sizeof(change->new_key));
2229 } else {
2230 change->modes_clear |= MODE_KEY;
2231 if (!(flags & MCP_KEY_FREE)) {
2232 if (in_arg >= argc)
2233 goto error;
2234 in_arg++;
2235 }
2236 }
2237 break;
2238 case 'b':
2239 if (!(flags & MCP_ALLOW_OVB))
2240 goto error;
2241 if (in_arg >= argc)
2242 goto error;
2243 change->args[ch_arg].mode = MODE_BAN;
2244 if (!add)
2245 change->args[ch_arg].mode |= MODE_REMOVE;
a32da4c7 2246 change->args[ch_arg++].u.hostmask = modes[in_arg++];
d76ed9a9 2247 break;
2aef5f4b 2248 case 'e':
2249 if (!(flags & MCP_ALLOW_OVB))
2250 goto error;
2251 if (in_arg >= argc)
2252 goto error;
2253 change->args[ch_arg].mode = MODE_EXEMPT;
2254 if (!add)
2255 change->args[ch_arg].mode |= MODE_REMOVE;
a32da4c7 2256 change->args[ch_arg++].u.hostmask = modes[in_arg++];
2aef5f4b 2257 break;
55342ce8 2258 case 'o': case 'h': case 'v':
d76ed9a9
AS
2259 {
2260 struct userNode *victim;
2261 if (!(flags & MCP_ALLOW_OVB))
2262 goto error;
2263 if (in_arg >= argc)
2264 goto error;
55342ce8 2265
2266 if (modes[0][ii] == 'o')
2267 change->args[ch_arg].mode = MODE_CHANOP;
2268 else if (modes[0][ii] == 'h')
2269 change->args[ch_arg].mode = MODE_HALFOP;
2270 else if (modes[0][ii] == 'v')
2271 change->args[ch_arg].mode = MODE_VOICE;
2272
d76ed9a9
AS
2273 if (!add)
2274 change->args[ch_arg].mode |= MODE_REMOVE;
2275 if (flags & MCP_FROM_SERVER)
2276 victim = GetUserN(modes[in_arg++]);
2277 else
2278 victim = GetUserH(modes[in_arg++]);
2279 if (!victim)
2280 continue;
a32da4c7 2281 if ((change->args[ch_arg].u.member = GetUserMode(channel, victim)))
d76ed9a9
AS
2282 ch_arg++;
2283 break;
2284 }
2285 default:
2286 if (!(flags & MCP_FROM_SERVER))
2287 goto error;
2288 break;
2289 }
2290 }
2291 change->argc = ch_arg; /* in case any turned out to be ignored */
2292 if (change->modes_set & MODE_SECRET) {
2293 change->modes_set &= ~(MODE_PRIVATE);
2294 change->modes_clear |= MODE_PRIVATE;
2295 } else if (change->modes_set & MODE_PRIVATE) {
2296 change->modes_set &= ~(MODE_SECRET);
2297 change->modes_clear |= MODE_SECRET;
2298 }
2299 return change;
2300 error:
2301 mod_chanmode_free(change);
2302 return NULL;
2303}
2304
2305struct chanmode_buffer {
2306 char modes[MAXLEN];
2307 char args[MAXLEN];
2308 struct chanNode *channel;
2309 struct userNode *actor;
2310 unsigned int modes_used;
2311 unsigned int args_used;
2312 size_t chname_len;
2313 unsigned int is_add : 1;
2314 unsigned int is_chanop : 1;
2315};
2316
2317static void
2318mod_chanmode_append(struct chanmode_buffer *buf, char ch, const char *arg)
2319{
2320 size_t arg_len = strlen(arg);
2321 if (buf->modes_used > (MAXMODEPARAMS) ||
2322 buf->modes_used + buf->args_used + buf->chname_len + arg_len > 450) {
2323 memcpy(buf->modes + buf->modes_used, buf->args, buf->args_used);
2324 buf->modes[buf->modes_used + buf->args_used] = '\0';
2325 irc_mode((buf->is_chanop ? buf->actor : NULL), buf->channel, buf->modes);
2326 buf->modes[0] = buf->is_add ? '+' : '-';
2327 buf->modes_used = 1;
2328 buf->args_used = 0;
2329 }
2330 buf->modes[buf->modes_used++] = ch;
2331 buf->args[buf->args_used++] = ' ';
2332 memcpy(buf->args + buf->args_used, arg, arg_len);
2333 buf->args_used += arg_len;
2334}
2335
2336void
2337mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
2338{
2339 struct chanmode_buffer chbuf;
2340 unsigned int arg;
2341 struct modeNode *mn;
2342 char int_buff[32], mode = '\0';
2343
2344 assert(change->argc <= change->alloc_argc);
2345 memset(&chbuf, 0, sizeof(chbuf));
2346 chbuf.channel = channel;
2347 chbuf.actor = who;
2348 chbuf.chname_len = strlen(channel->name);
2349
2350 mn = GetUserMode(channel, who);
2351 if ((mn && (mn->modes & MODE_CHANOP)) || off_channel)
2352 chbuf.is_chanop = 1;
2353
2354 /* First remove modes */
2355 chbuf.is_add = 0;
2356 if (change->modes_clear) {
2357 if (mode != '-')
2358 chbuf.modes[chbuf.modes_used++] = mode = '-';
2359#define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2360 DO_MODE_CHAR(PRIVATE, 'p');
2361 DO_MODE_CHAR(SECRET, 's');
2362 DO_MODE_CHAR(MODERATED, 'm');
2363 DO_MODE_CHAR(TOPICLIMIT, 't');
2364 DO_MODE_CHAR(INVITEONLY, 'i');
2365 DO_MODE_CHAR(NOPRIVMSGS, 'n');
2366 DO_MODE_CHAR(LIMIT, 'l');
2367 DO_MODE_CHAR(DELAYJOINS, 'D');
2368 DO_MODE_CHAR(REGONLY, 'r');
2369 DO_MODE_CHAR(NOCOLORS, 'c');
2370 DO_MODE_CHAR(NOCTCPS, 'C');
d0cb2fb6
AS
2371 DO_MODE_CHAR(STRIPCOLOR, 'S');
2372 DO_MODE_CHAR(MODUNREG, 'M');
2373 DO_MODE_CHAR(NONOTICE, 'N');
2374 DO_MODE_CHAR(NOQUITMSGS, 'Q');
2375 DO_MODE_CHAR(NOAMSG, 'T');
2376 DO_MODE_CHAR(OPERSONLY, 'O');
2377 // uncomment this for ssl support
2378 //DO_MODE_CHAR(SSLONLY, 'z');
d76ed9a9
AS
2379#undef DO_MODE_CHAR
2380 if (change->modes_clear & channel->modes & MODE_KEY)
2381 mod_chanmode_append(&chbuf, 'k', channel->key);
2382 }
2383 for (arg = 0; arg < change->argc; ++arg) {
2384 if (!(change->args[arg].mode & MODE_REMOVE))
2385 continue;
2386 if (mode != '-')
2387 chbuf.modes[chbuf.modes_used++] = mode = '-';
2388 switch (change->args[arg].mode & ~MODE_REMOVE) {
2389 case MODE_BAN:
a32da4c7 2390 mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
d76ed9a9 2391 break;
2aef5f4b 2392 case MODE_EXEMPT:
a32da4c7 2393 mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2aef5f4b 2394 break;
d76ed9a9
AS
2395 default:
2396 if (change->args[arg].mode & MODE_CHANOP)
a32da4c7 2397 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
55342ce8 2398 if (change->args[arg].mode & MODE_HALFOP)
a32da4c7 2399 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
d76ed9a9 2400 if (change->args[arg].mode & MODE_VOICE)
a32da4c7 2401 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
d76ed9a9
AS
2402 break;
2403 }
2404 }
2405
2406 /* Then set them */
2407 chbuf.is_add = 1;
2408 if (change->modes_set) {
2409 if (mode != '+')
2410 chbuf.modes[chbuf.modes_used++] = mode = '+';
2411#define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) chbuf.modes[chbuf.modes_used++] = CHAR
2412 DO_MODE_CHAR(PRIVATE, 'p');
2413 DO_MODE_CHAR(SECRET, 's');
2414 DO_MODE_CHAR(MODERATED, 'm');
2415 DO_MODE_CHAR(TOPICLIMIT, 't');
2416 DO_MODE_CHAR(INVITEONLY, 'i');
2417 DO_MODE_CHAR(NOPRIVMSGS, 'n');
2418 DO_MODE_CHAR(DELAYJOINS, 'D');
2419 DO_MODE_CHAR(REGONLY, 'r');
2420 DO_MODE_CHAR(NOCOLORS, 'c');
2421 DO_MODE_CHAR(NOCTCPS, 'C');
d0cb2fb6
AS
2422 DO_MODE_CHAR(STRIPCOLOR, 'S');
2423 DO_MODE_CHAR(MODUNREG, 'M');
2424 DO_MODE_CHAR(NONOTICE, 'N');
2425 DO_MODE_CHAR(NOQUITMSGS, 'Q');
2426 DO_MODE_CHAR(NOAMSG, 'T');
2427 DO_MODE_CHAR(OPERSONLY, 'O');
2428 // uncomment this for ssl support
2429 //DO_MODE_CHAR(SSLONLY, 'z');
d76ed9a9
AS
2430#undef DO_MODE_CHAR
2431 if(change->modes_set & MODE_KEY)
2432 mod_chanmode_append(&chbuf, 'k', change->new_key);
2433 if(change->modes_set & MODE_LIMIT) {
2434 sprintf(int_buff, "%d", change->new_limit);
2435 mod_chanmode_append(&chbuf, 'l', int_buff);
2436 }
2437 }
2438 for (arg = 0; arg < change->argc; ++arg) {
2439 if (change->args[arg].mode & MODE_REMOVE)
2440 continue;
2441 if (mode != '+')
2442 chbuf.modes[chbuf.modes_used++] = mode = '+';
2443 switch (change->args[arg].mode) {
2444 case MODE_BAN:
a32da4c7 2445 mod_chanmode_append(&chbuf, 'b', change->args[arg].u.hostmask);
d76ed9a9 2446 break;
2aef5f4b 2447 case MODE_EXEMPT:
a32da4c7 2448 mod_chanmode_append(&chbuf, 'e', change->args[arg].u.hostmask);
2aef5f4b 2449 break;
d76ed9a9
AS
2450 default:
2451 if (change->args[arg].mode & MODE_CHANOP)
a32da4c7 2452 mod_chanmode_append(&chbuf, 'o', change->args[arg].u.member->user->numeric);
55342ce8 2453 if (change->args[arg].mode & MODE_HALFOP)
a32da4c7 2454 mod_chanmode_append(&chbuf, 'h', change->args[arg].u.member->user->numeric);
d76ed9a9 2455 if (change->args[arg].mode & MODE_VOICE)
a32da4c7 2456 mod_chanmode_append(&chbuf, 'v', change->args[arg].u.member->user->numeric);
d76ed9a9
AS
2457 break;
2458 }
2459 }
2460
2461 /* Flush the buffer and apply changes locally */
2462 if (chbuf.modes_used > 0) {
2463 memcpy(chbuf.modes + chbuf.modes_used, chbuf.args, chbuf.args_used);
2464 chbuf.modes[chbuf.modes_used + chbuf.args_used] = '\0';
2465 irc_mode((chbuf.is_chanop ? chbuf.actor : NULL), chbuf.channel, chbuf.modes);
2466 }
2467 mod_chanmode_apply(who, channel, change);
2468}
2469
2470char *
2471mod_chanmode_format(struct mod_chanmode *change, char *outbuff)
2472{
2473 unsigned int used = 0;
2474 assert(change->argc <= change->alloc_argc);
2475 if (change->modes_clear) {
2476 outbuff[used++] = '-';
2477#define DO_MODE_CHAR(BIT, CHAR) if (change->modes_clear & MODE_##BIT) outbuff[used++] = CHAR
2478 DO_MODE_CHAR(PRIVATE, 'p');
2479 DO_MODE_CHAR(SECRET, 's');
2480 DO_MODE_CHAR(MODERATED, 'm');
2481 DO_MODE_CHAR(TOPICLIMIT, 't');
2482 DO_MODE_CHAR(INVITEONLY, 'i');
2483 DO_MODE_CHAR(NOPRIVMSGS, 'n');
2484 DO_MODE_CHAR(LIMIT, 'l');
2485 DO_MODE_CHAR(KEY, 'k');
2486 DO_MODE_CHAR(DELAYJOINS, 'D');
2487 DO_MODE_CHAR(REGONLY, 'r');
2488 DO_MODE_CHAR(NOCOLORS, 'c');
2489 DO_MODE_CHAR(NOCTCPS, 'C');
d0cb2fb6
AS
2490 DO_MODE_CHAR(STRIPCOLOR, 'S');
2491 DO_MODE_CHAR(MODUNREG, 'M');
2492 DO_MODE_CHAR(NONOTICE, 'N');
2493 DO_MODE_CHAR(NOQUITMSGS, 'Q');
2494 DO_MODE_CHAR(NOAMSG, 'T');
2495 DO_MODE_CHAR(OPERSONLY, 'O');
2496 // uncomment this for ssl support
2497 //DO_MODE_CHAR(SSLONLY, 'z');
d76ed9a9
AS
2498#undef DO_MODE_CHAR
2499 }
2500 if (change->modes_set) {
2501 outbuff[used++] = '+';
2502#define DO_MODE_CHAR(BIT, CHAR) if (change->modes_set & MODE_##BIT) outbuff[used++] = CHAR
2503 DO_MODE_CHAR(PRIVATE, 'p');
2504 DO_MODE_CHAR(SECRET, 's');
2505 DO_MODE_CHAR(MODERATED, 'm');
2506 DO_MODE_CHAR(TOPICLIMIT, 't');
2507 DO_MODE_CHAR(INVITEONLY, 'i');
2508 DO_MODE_CHAR(NOPRIVMSGS, 'n');
2509 DO_MODE_CHAR(DELAYJOINS, 'D');
2510 DO_MODE_CHAR(REGONLY, 'r');
2511 DO_MODE_CHAR(NOCOLORS, 'c');
2512 DO_MODE_CHAR(NOCTCPS, 'C');
d0cb2fb6
AS
2513 DO_MODE_CHAR(STRIPCOLOR, 'S');
2514 DO_MODE_CHAR(MODUNREG, 'M');
2515 DO_MODE_CHAR(NONOTICE, 'N');
2516 DO_MODE_CHAR(NOQUITMSGS, 'Q');
2517 DO_MODE_CHAR(NOAMSG, 'T');
2518 DO_MODE_CHAR(OPERSONLY, 'O');
2519 // uncomment this for ssl support
2520 //DO_MODE_CHAR(SSLONLY, 'z');
d76ed9a9
AS
2521#undef DO_MODE_CHAR
2522 switch (change->modes_set & (MODE_KEY|MODE_LIMIT)) {
2523 case MODE_KEY|MODE_LIMIT:
2524 used += sprintf(outbuff+used, "lk %d %s", change->new_limit, change->new_key);
2525 break;
2526 case MODE_KEY:
2527 used += sprintf(outbuff+used, "k %s", change->new_key);
2528 break;
2529 case MODE_LIMIT:
2530 used += sprintf(outbuff+used, "l %d", change->new_limit);
2531 break;
2532 }
2533 }
2534 outbuff[used] = 0;
2535 return outbuff;
2536}
2537
2538static int
2539clear_chanmode(struct chanNode *channel, const char *modes)
2540{
2541 unsigned int remove;
2542
2543 for (remove = 0; *modes; modes++) {
2544 switch (*modes) {
2545 case 'o': remove |= MODE_CHANOP; break;
55342ce8 2546 case 'h': remove |= MODE_HALFOP; break;
d76ed9a9
AS
2547 case 'v': remove |= MODE_VOICE; break;
2548 case 'p': remove |= MODE_PRIVATE; break;
2549 case 's': remove |= MODE_SECRET; break;
2550 case 'm': remove |= MODE_MODERATED; break;
2551 case 't': remove |= MODE_TOPICLIMIT; break;
2552 case 'i': remove |= MODE_INVITEONLY; break;
2553 case 'n': remove |= MODE_NOPRIVMSGS; break;
2554 case 'k':
2555 remove |= MODE_KEY;
2556 channel->key[0] = '\0';
2557 break;
2558 case 'l':
2559 remove |= MODE_LIMIT;
2560 channel->limit = 0;
2561 break;
2562 case 'b': remove |= MODE_BAN; break;
2aef5f4b 2563 case 'e': remove |= MODE_EXEMPT; break;
d76ed9a9
AS
2564 case 'D': remove |= MODE_DELAYJOINS; break;
2565 case 'r': remove |= MODE_REGONLY; break;
2566 case 'c': remove |= MODE_NOCOLORS;
2567 case 'C': remove |= MODE_NOCTCPS; break;
d0cb2fb6
AS
2568 case 'S': remove |= MODE_STRIPCOLOR; break;
2569 case 'M': remove |= MODE_MODUNREG; break;
2570 case 'N': remove |= MODE_NONOTICE; break;
2571 case 'Q': remove |= MODE_NOQUITMSGS; break;
2572 case 'T': remove |= MODE_NOAMSG; break;
2573 case 'O': remove |= MODE_OPERSONLY; break;
d76ed9a9
AS
2574 }
2575 }
2576
2577 if (!remove)
2578 return 1;
2579
2580 /* Remove simple modes. */
2581 channel->modes &= ~remove;
2582
2583 /* If removing bans, kill 'em all. */
2584 if ((remove & MODE_BAN) && channel->banlist.used) {
2585 unsigned int i;
2586 for (i=0; i<channel->banlist.used; i++)
2587 free(channel->banlist.list[i]);
2588 channel->banlist.used = 0;
2589 }
2590
2aef5f4b 2591 /* If removing exempts, kill 'em all. */
2592 if ((remove & MODE_EXEMPT) && channel->exemptlist.used) {
2593 unsigned int i;
2594 for (i=0; i<channel->exemptlist.used; i++)
2595 free(channel->exemptlist.list[i]);
2596 channel->exemptlist.used = 0;
2597 }
2598
d76ed9a9 2599 /* Remove member modes. */
55342ce8 2600 if ((remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE)) && channel->members.used) {
2601 int mask = ~(remove & (MODE_CHANOP | MODE_HALFOP | MODE_VOICE));
d76ed9a9
AS
2602 unsigned int i;
2603
2604 for (i = 0; i < channel->members.used; i++)
2605 channel->members.list[i]->modes &= mask;
2606 }
2607
2608 return 1;
2609}
2610
2611void
2612reg_privmsg_func(struct userNode *user, privmsg_func_t handler)
2613{
2614 unsigned int numeric = user->num_local;
2615 if (numeric >= num_privmsg_funcs) {
2616 int newnum = numeric + 8;
2617 privmsg_funcs = realloc(privmsg_funcs, newnum*sizeof(privmsg_func_t));
2618 memset(privmsg_funcs+num_privmsg_funcs, 0, (newnum-num_privmsg_funcs)*sizeof(privmsg_func_t));
2619 num_privmsg_funcs = newnum;
2620 }
2621 if (privmsg_funcs[numeric])
2622 log_module(MAIN_LOG, LOG_WARNING, "re-registering new privmsg handler for numeric %d", numeric);
2623 privmsg_funcs[numeric] = handler;
2624}
2625
2626void
2627unreg_privmsg_func(struct userNode *user, privmsg_func_t handler)
2628{
2629 unsigned int x;
2630
2631 if (!user || handler)
2632 return; /* this really only works with users */
2633
2634 memset(privmsg_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2635
2636 for (x = user->num_local+1; x < num_privmsg_funcs; x++)
2637 memmove(privmsg_funcs+x-1, privmsg_funcs+x, sizeof(privmsg_func_t));
2638
2639 privmsg_funcs = realloc(privmsg_funcs, num_privmsg_funcs*sizeof(privmsg_func_t));
2640 num_privmsg_funcs--;
2641}
2642
2643
2644void
2645reg_notice_func(struct userNode *user, privmsg_func_t handler)
2646{
2647 unsigned int numeric = user->num_local;
2648 if (numeric >= num_notice_funcs) {
2649 int newnum = numeric + 8;
2650 notice_funcs = realloc(notice_funcs, newnum*sizeof(privmsg_func_t));
2651 memset(notice_funcs+num_notice_funcs, 0, (newnum-num_notice_funcs)*sizeof(privmsg_func_t));
2652 num_notice_funcs = newnum;
2653 }
2654 if (notice_funcs[numeric])
2655 log_module(MAIN_LOG, LOG_WARNING, "re-registering new notice handler for numeric %d", numeric);
2656 notice_funcs[numeric] = handler;
2657}
2658
2659void
2660unreg_notice_func(struct userNode *user, privmsg_func_t handler)
2661{
2662 unsigned int x;
2663
2664 if (!user || handler)
2665 return; /* this really only works with users */
2666
2667 memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2668
2669 for (x = user->num_local+1; x < num_notice_funcs; x++)
2670 memmove(notice_funcs+x-1, notice_funcs+x, sizeof(privmsg_func_t));
2671
2672 memset(notice_funcs+user->num_local, 0, sizeof(privmsg_func_t));
2673 notice_funcs = realloc(notice_funcs, num_notice_funcs*sizeof(privmsg_func_t));
2674 num_notice_funcs--;
2675}
2676
2677void
2678reg_oper_func(oper_func_t handler)
2679{
2680 if (of_used == of_size) {
2681 if (of_size) {
2682 of_size <<= 1;
2683 of_list = realloc(of_list, of_size*sizeof(oper_func_t));
2684 } else {
2685 of_size = 8;
2686 of_list = malloc(of_size*sizeof(oper_func_t));
2687 }
2688 }
2689 of_list[of_used++] = handler;
2690}
2691
2692static void
2693call_oper_funcs(struct userNode *user)
2694{
2695 unsigned int n;
2696 if (IsLocal(user))
2697 return;
2698 for (n=0; n<of_used; n++)
2699 of_list[n](user);
2700}
2701
2702static void
2703send_burst(void)
2704{
2705 unsigned int i, hop, max_hop=1;
2706 dict_iterator_t it;
2707
2708 /* burst (juped) servers, closest first (except self, which is sent already) */
2709 for (i=0; i<ArrayLength(servers_num); i++)
2710 if (servers_num[i] && servers_num[i]->hops > max_hop)
2711 max_hop = servers_num[i]->hops;
2712 for (hop=1; hop<=max_hop; hop++) {
2713 for (i=0;i<ArrayLength(servers_num);i++) {
2714 if (servers_num[i]
2715 && (servers_num[i]->hops == hop)
2716 && (servers_num[i] != self->uplink))
2717 irc_server(servers_num[i]);
2718 }
2719 }
2720
2721 /* burst local nicks */
2722 for (i=0; i<=self->num_mask; i++)
2723 if (self->users[i])
2724 irc_user(self->users[i]);
2725
2726 /* build dict of unbursted channel names (just copy existing channels) */
2727 unbursted_channels = dict_new();
2728 for (it = dict_first(channels); it; it = iter_next(it))
2729 dict_insert(unbursted_channels, iter_key(it), iter_data(it));
2730}