/[svn]/ircd-hybrid-8/src/s_user.c
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Contents of /ircd-hybrid-8/src/s_user.c

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Revision 1232 - (show annotations)
Thu Sep 22 20:25:00 2011 UTC (8 years, 5 months ago) by michael
File MIME type: text/x-chdr
File size: 41242 byte(s)
- oper_up(): if both ConfigFileEntry.oper_umodes and oconf->modes aren't
  specified, don't give a client any other default oper-modes

1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * s_user.c: User related functions.
4 *
5 * Copyright (C) 2002 by the past and present ircd coders, and others.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 * USA
21 *
22 * $Id$
23 */
24
25 #include "stdinc.h"
26 #include "list.h"
27 #include "s_user.h"
28 #include "s_misc.h"
29 #include "channel.h"
30 #include "channel_mode.h"
31 #include "client.h"
32 #include "common.h"
33 #include "fdlist.h"
34 #include "hash.h"
35 #include "irc_string.h"
36 #include "sprintf_irc.h"
37 #include "s_bsd.h"
38 #include "ircd.h"
39 #include "listener.h"
40 #include "motd.h"
41 #include "numeric.h"
42 #include "s_conf.h"
43 #include "s_log.h"
44 #include "s_serv.h"
45 #include "send.h"
46 #include "supported.h"
47 #include "whowas.h"
48 #include "memory.h"
49 #include "packet.h"
50 #include "rng_mt.h"
51 #include "userhost.h"
52 #include "hook.h"
53 #include "s_misc.h"
54 #include "msg.h"
55 #include "watch.h"
56
57
58 struct Callback *entering_umode_cb = NULL;
59 struct Callback *umode_cb = NULL;
60
61 static char umode_buffer[IRCD_BUFSIZE];
62
63 static void user_welcome(struct Client *);
64 static void report_and_set_user_flags(struct Client *, const struct AccessItem *);
65 static int check_xline(struct Client *);
66 static void introduce_client(struct Client *);
67 static const char *uid_get(void);
68
69 /* Used for building up the isupport string,
70 * used with init_isupport, add_isupport, delete_isupport
71 */
72
73 struct Isupport
74 {
75 dlink_node node;
76 char *name;
77 char *options;
78 int number;
79 };
80
81 static dlink_list support_list = { NULL, NULL, 0 };
82 MessageFile *isupportFile;
83
84 /* memory is cheap. map 0-255 to equivalent mode */
85 unsigned int user_modes[256] =
86 {
87 /* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x0F */
88 /* 0x10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1F */
89 /* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2F */
90 /* 0x30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x3F */
91 0, /* @ */
92 0, /* A */
93 0, /* B */
94 UMODE_CCONN_FULL, /* C */
95 UMODE_DEAF, /* D */
96 0, /* E */
97 0, /* F */
98 UMODE_SOFTCALLERID, /* G */
99 0, /* H */
100 0, /* I */
101 0, /* J */
102 0, /* K */
103 0, /* L */
104 0, /* M */
105 0, /* N */
106 0, /* O */
107 0, /* P */
108 0, /* Q */
109 UMODE_REGONLY, /* R */
110 0, /* S */
111 0, /* T */
112 0, /* U */
113 0, /* V */
114 0, /* W */
115 0, /* X */
116 0, /* Y */
117 0, /* Z 0x5A */
118 0, 0, 0, 0, 0, /* 0x5F */
119 0, /* 0x60 */
120 UMODE_ADMIN, /* a */
121 UMODE_BOTS, /* b */
122 UMODE_CCONN, /* c */
123 UMODE_DEBUG, /* d */
124 0, /* e */
125 UMODE_FULL, /* f */
126 UMODE_CALLERID, /* g */
127 0, /* h */
128 UMODE_INVISIBLE, /* i */
129 UMODE_REJ, /* j */
130 UMODE_SKILL, /* k */
131 UMODE_LOCOPS, /* l */
132 0, /* m */
133 UMODE_NCHANGE, /* n */
134 UMODE_OPER, /* o */
135 0, /* p */
136 0, /* q */
137 UMODE_REGISTERED, /* r */
138 UMODE_SERVNOTICE, /* s */
139 0, /* t */
140 UMODE_UNAUTH, /* u */
141 0, /* v */
142 UMODE_WALLOP, /* w */
143 UMODE_EXTERNAL, /* x */
144 UMODE_SPY, /* y */
145 UMODE_OPERWALL, /* z 0x7A */
146 0,0,0,0,0, /* 0x7B - 0x7F */
147
148 /* 0x80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x8F */
149 /* 0x90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x9F */
150 /* 0xA0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xAF */
151 /* 0xB0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xBF */
152 /* 0xC0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xCF */
153 /* 0xD0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xDF */
154 /* 0xE0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xEF */
155 /* 0xF0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xFF */
156 };
157
158 void
159 assemble_umode_buffer(void)
160 {
161 unsigned int idx = 0;
162 char *umode_buffer_ptr = umode_buffer;
163
164 for (; idx < (sizeof(user_modes) / sizeof(user_modes[0])); ++idx)
165 if (user_modes[idx])
166 *umode_buffer_ptr++ = idx;
167
168 *umode_buffer_ptr = '\0';
169 }
170
171 /* show_lusers()
172 *
173 * inputs - pointer to client
174 * output - NONE
175 * side effects - display to client user counts etc.
176 */
177 void
178 show_lusers(struct Client *source_p)
179 {
180 const char *from, *to;
181
182 if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
183 {
184 from = me.id;
185 to = source_p->id;
186 }
187 else
188 {
189 from = me.name;
190 to = source_p->name;
191 }
192
193 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
194 sendto_one(source_p, form_str(RPL_LUSERCLIENT),
195 from, to, (Count.total-Count.invisi),
196 Count.invisi, dlink_list_length(&global_serv_list));
197 else
198 sendto_one(source_p, form_str(RPL_LUSERCLIENT), from, to,
199 (Count.total-Count.invisi), Count.invisi, 1);
200
201 if (Count.oper > 0)
202 sendto_one(source_p, form_str(RPL_LUSEROP),
203 from, to, Count.oper);
204
205 if (dlink_list_length(&unknown_list) > 0)
206 sendto_one(source_p, form_str(RPL_LUSERUNKNOWN),
207 from, to, dlink_list_length(&unknown_list));
208
209 if (dlink_list_length(&global_channel_list) > 0)
210 sendto_one(source_p, form_str(RPL_LUSERCHANNELS),
211 from, to, dlink_list_length(&global_channel_list));
212
213 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
214 {
215 sendto_one(source_p, form_str(RPL_LUSERME),
216 from, to, Count.local, Count.myserver);
217 sendto_one(source_p, form_str(RPL_LOCALUSERS),
218 from, to, Count.local, Count.max_loc,
219 Count.local, Count.max_loc);
220 }
221 else
222 {
223 sendto_one(source_p, form_str(RPL_LUSERME),
224 from, to, Count.total, 0);
225 sendto_one(source_p, form_str(RPL_LOCALUSERS),
226 from, to, Count.total, Count.max_tot,
227 Count.total, Count.max_tot);
228 }
229
230 sendto_one(source_p, form_str(RPL_GLOBALUSERS),
231 from, to, Count.total, Count.max_tot,
232 Count.total, Count.max_tot);
233
234 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
235 sendto_one(source_p, form_str(RPL_STATSCONN), from, to,
236 Count.max_loc_con, Count.max_loc_cli, Count.totalrestartcount);
237
238 if (Count.local > Count.max_loc_cli)
239 Count.max_loc_cli = Count.local;
240
241 if ((Count.local + Count.myserver) > Count.max_loc_con)
242 Count.max_loc_con = Count.local + Count.myserver;
243 }
244
245 /* show_isupport()
246 *
247 * inputs - pointer to client
248 * output - NONE
249 * side effects - display to client what we support (for them)
250 */
251 void
252 show_isupport(struct Client *source_p)
253 {
254 send_message_file(source_p, isupportFile);
255 }
256
257 /*
258 ** register_local_user
259 ** This function is called when both NICK and USER messages
260 ** have been accepted for the client, in whatever order. Only
261 ** after this, is the USER message propagated.
262 **
263 ** NICK's must be propagated at once when received, although
264 ** it would be better to delay them too until full info is
265 ** available. Doing it is not so simple though, would have
266 ** to implement the following:
267 **
268 ** (actually it has been implemented already for a while) -orabidoo
269 **
270 ** 1) user telnets in and gives only "NICK foobar" and waits
271 ** 2) another user far away logs in normally with the nick
272 ** "foobar" (quite legal, as this server didn't propagate
273 ** it).
274 ** 3) now this server gets nick "foobar" from outside, but
275 ** has alread the same defined locally. Current server
276 ** would just issue "KILL foobar" to clean out dups. But,
277 ** this is not fair. It should actually request another
278 ** nick from local user or kill him/her...
279 */
280 void
281 register_local_user(struct Client *source_p)
282 {
283 const char *id = NULL;
284 const struct AccessItem *aconf = NULL;
285 dlink_node *ptr = NULL;
286
287 assert(source_p != NULL);
288 assert(source_p == source_p->from);
289 assert(MyConnect(source_p));
290 assert(!source_p->localClient->registration);
291
292 ClearCap(source_p, CAP_TS6);
293
294 if (ConfigFileEntry.ping_cookie)
295 {
296 if (!IsPingSent(source_p) && source_p->localClient->random_ping == 0)
297 {
298 do
299 source_p->localClient->random_ping = genrand_int32();
300 while (!source_p->localClient->random_ping);
301
302 sendto_one(source_p, "PING :%u",
303 source_p->localClient->random_ping);
304 SetPingSent(source_p);
305 return;
306 }
307
308 if (!HasPingCookie(source_p))
309 return;
310 }
311
312 source_p->localClient->last_privmsg = CurrentTime;
313 /* Straight up the maximum rate of flooding... */
314 source_p->localClient->allow_read = MAX_FLOOD_BURST;
315
316 if (!execute_callback(client_check_cb, source_p, source_p->username))
317 return;
318
319 if (valid_hostname(source_p->host) == 0)
320 {
321 sendto_one(source_p, ":%s NOTICE %s :*** Notice -- You have an illegal "
322 "character in your hostname", me.name, source_p->name);
323 strlcpy(source_p->host, source_p->sockhost,
324 sizeof(source_p->host));
325 }
326
327 ptr = source_p->localClient->confs.head;
328 aconf = map_to_conf(ptr->data);
329
330 if (!IsGotId(source_p))
331 {
332 char username[USERLEN + 1];
333 const char *p = username;
334 unsigned int i = 0;
335
336 if (IsNeedIdentd(aconf))
337 {
338 ++ServerStats.is_ref;
339 sendto_one(source_p, ":%s NOTICE %s :*** Notice -- You need to install "
340 "identd to use this server", me.name, source_p->name);
341 exit_client(source_p, &me, "Install identd");
342 return;
343 }
344
345 strlcpy(username, source_p->username, sizeof(username));
346
347 if (!IsNoTilde(aconf))
348 source_p->username[i++] = '~';
349
350 for (; *p && i < USERLEN; ++p)
351 if (*p != '[')
352 source_p->username[i++] = *p;
353
354 source_p->username[i] = '\0';
355 }
356
357 /* password check */
358 if (!EmptyString(aconf->passwd))
359 {
360 const char *pass = source_p->localClient->passwd;
361
362 if (!match_conf_password(pass, aconf))
363 {
364 ++ServerStats.is_ref;
365 sendto_one(source_p, form_str(ERR_PASSWDMISMATCH),
366 me.name, source_p->name);
367 exit_client(source_p, &me, "Bad Password");
368 return;
369 }
370 }
371
372 /* don't free source_p->localClient->passwd here - it can be required
373 * by masked /stats I if there are auth{} blocks with need_password = no;
374 * --adx
375 */
376
377 /* report if user has &^>= etc. and set flags as needed in source_p */
378 report_and_set_user_flags(source_p, aconf);
379
380 if (IsDead(source_p))
381 return;
382
383 /* Limit clients -
384 * We want to be able to have servers and F-line clients
385 * connect, so save room for "buffer" connections.
386 * Smaller servers may want to decrease this, and it should
387 * probably be just a percentage of the MAXCLIENTS...
388 * -Taner
389 */
390 /* Except "F:" clients */
391 if ((Count.local >= ServerInfo.max_clients + MAX_BUFFER) ||
392 (Count.local >= ServerInfo.max_clients && !IsExemptLimits(source_p)))
393 {
394 sendto_realops_flags(UMODE_FULL, L_ALL,
395 "Too many clients, rejecting %s[%s].",
396 source_p->name, source_p->host);
397 ++ServerStats.is_ref;
398 exit_client(source_p, &me, "Sorry, server is full - try later");
399 return;
400 }
401
402 /* valid user name check */
403 if (valid_username(source_p->username) == 0)
404 {
405 char tmpstr2[IRCD_BUFSIZE];
406
407 sendto_realops_flags(UMODE_REJ, L_ALL, "Invalid username: %s (%s@%s)",
408 source_p->name, source_p->username, source_p->host);
409 ++ServerStats.is_ref;
410 snprintf(tmpstr2, sizeof(tmpstr2), "Invalid username [%s]",
411 source_p->username);
412 exit_client(source_p, &me, tmpstr2);
413 return;
414 }
415
416 if (check_xline(source_p))
417 return;
418
419 while (hash_find_id((id = uid_get())) != NULL)
420 ;
421
422 strlcpy(source_p->id, id, sizeof(source_p->id));
423 hash_add_id(source_p);
424
425 sendto_realops_flags(UMODE_CCONN, L_ALL,
426 "Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>",
427 source_p->name, source_p->username, source_p->host,
428 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
429 "255.255.255.255" : source_p->sockhost,
430 get_client_class(source_p),
431 source_p->info, source_p->id);
432
433 sendto_realops_flags(UMODE_CCONN_FULL, L_ALL,
434 "CLICONN %s %s %s %s %s %s %s 0 %s",
435 source_p->name, source_p->username, source_p->host,
436 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
437 "255.255.255.255" : source_p->sockhost,
438 get_client_class(source_p),
439 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
440 "<hidden>" : source_p->localClient->client_host,
441 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
442 "<hidden>" : source_p->localClient->client_server,
443 source_p->info);
444
445
446 if (ConfigFileEntry.invisible_on_connect)
447 {
448 AddUMode(source_p, UMODE_INVISIBLE);
449 ++Count.invisi;
450 }
451
452 if ((++Count.local) > Count.max_loc)
453 {
454 Count.max_loc = Count.local;
455
456 if (!(Count.max_loc % 10))
457 sendto_realops_flags(UMODE_ALL, L_ALL, "New Max Local Clients: %d",
458 Count.max_loc);
459 }
460
461 /* Increment our total user count here */
462 if (++Count.total > Count.max_tot)
463 Count.max_tot = Count.total;
464 ++Count.totalrestartcount;
465
466 assert(source_p->servptr == &me);
467 SetClient(source_p);
468 dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
469
470 source_p->localClient->allow_read = MAX_FLOOD_BURST;
471
472 assert(dlinkFind(&unknown_list, source_p));
473
474 dlink_move_node(&source_p->localClient->lclient_node,
475 &unknown_list, &local_client_list);
476
477 user_welcome(source_p);
478 add_user_host(source_p->username, source_p->host, 0);
479 SetUserHost(source_p);
480
481 introduce_client(source_p);
482 }
483
484 /* register_remote_user()
485 *
486 * inputs - source_p remote or directly connected client
487 * - username to register as
488 * - host name to register as
489 * - server name
490 * - realname (gecos)
491 * output - NONE
492 * side effects - This function is called when a remote client
493 * is introduced by a server.
494 */
495 void
496 register_remote_user(struct Client *source_p,
497 const char *username, const char *host, const char *server,
498 const char *realname)
499 {
500 struct Client *target_p = NULL;
501
502 assert(source_p != NULL);
503 assert(source_p->username != username);
504
505 strlcpy(source_p->host, host, sizeof(source_p->host));
506 strlcpy(source_p->username, username, sizeof(source_p->username));
507
508 /*
509 * coming from another server, take the servers word for it
510 */
511 source_p->servptr = hash_find_server(server);
512
513 /* Super GhostDetect:
514 * If we can't find the server the user is supposed to be on,
515 * then simply blow the user away. -Taner
516 */
517 if (source_p->servptr == NULL)
518 {
519 sendto_realops_flags(UMODE_ALL, L_ALL,
520 "No server %s for user %s[%s@%s] from %s",
521 server, source_p->name, source_p->username,
522 source_p->host, source_p->from->name);
523 kill_client(source_p->from, source_p, "%s (Server doesn't exist)", me.name);
524
525 AddFlag(source_p, FLAGS_KILLED);
526 exit_client(source_p, &me, "Ghosted Client");
527 return;
528 }
529
530 if ((target_p = source_p->servptr) && target_p->from != source_p->from)
531 {
532 sendto_realops_flags(UMODE_DEBUG, L_ALL,
533 "Bad User [%s] :%s USER %s@%s %s, != %s[%s]",
534 source_p->from->name, source_p->name, source_p->username,
535 source_p->host, source_p->servptr->name,
536 target_p->name, target_p->from->name);
537 kill_client(source_p->from, source_p,
538 "%s (NICK from wrong direction (%s != %s))",
539 me.name, source_p->servptr->name, target_p->from->name);
540 AddFlag(source_p, FLAGS_KILLED);
541 exit_client(source_p, &me, "USER server wrong direction");
542 return;
543 }
544
545 /*
546 * If the nick has been introduced by a services server,
547 * make it a service as well.
548 */
549 if (HasFlag(source_p->servptr, FLAGS_SERVICE))
550 AddFlag(source_p, FLAGS_SERVICE);
551
552 /* Increment our total user count here */
553 if (++Count.total > Count.max_tot)
554 Count.max_tot = Count.total;
555
556 SetClient(source_p);
557 dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
558 add_user_host(source_p->username, source_p->host, 1);
559 SetUserHost(source_p);
560
561 introduce_client(source_p);
562 }
563
564 /* introduce_client()
565 *
566 * inputs - source_p
567 * output - NONE
568 * side effects - This common function introduces a client to the rest
569 * of the net, either from a local client connect or
570 * from a remote connect.
571 */
572 static void
573 introduce_client(struct Client *source_p)
574 {
575 dlink_node *server_node = NULL;
576 static char ubuf[12];
577
578 if (MyClient(source_p))
579 send_umode(source_p, source_p, 0, SEND_UMODES, ubuf);
580 else
581 send_umode(NULL, source_p, 0, SEND_UMODES, ubuf);
582
583 watch_check_hash(source_p, RPL_LOGON);
584
585 if (*ubuf == '\0')
586 {
587 ubuf[0] = '+';
588 ubuf[1] = '\0';
589 }
590
591 DLINK_FOREACH(server_node, serv_list.head)
592 {
593 struct Client *server = server_node->data;
594
595 if (server == source_p->from)
596 continue;
597
598 if (IsCapable(server, CAP_SVS))
599 {
600 if (IsCapable(server, CAP_TS6) && HasID(source_p))
601 sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s %lu :%s",
602 source_p->servptr->id,
603 source_p->name, source_p->hopcount+1,
604 (unsigned long)source_p->tsinfo,
605 ubuf, source_p->username, source_p->host,
606 (MyClient(source_p) && IsIPSpoof(source_p)) ?
607 "0" : source_p->sockhost, source_p->id,
608 (unsigned long)source_p->servicestamp,
609 source_p->info);
610 else
611 sendto_one(server, "NICK %s %d %lu %s %s %s %s %lu :%s",
612 source_p->name, source_p->hopcount+1,
613 (unsigned long)source_p->tsinfo,
614 ubuf, source_p->username, source_p->host,
615 source_p->servptr->name, (unsigned long)source_p->servicestamp,
616 source_p->info);
617
618 }
619 else
620 {
621 if (IsCapable(server, CAP_TS6) && HasID(source_p))
622 sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s :%s",
623 source_p->servptr->id,
624 source_p->name, source_p->hopcount+1,
625 (unsigned long)source_p->tsinfo,
626 ubuf, source_p->username, source_p->host,
627 (MyClient(source_p) && IsIPSpoof(source_p)) ?
628 "0" : source_p->sockhost, source_p->id, source_p->info);
629 else
630 sendto_one(server, "NICK %s %d %lu %s %s %s %s :%s",
631 source_p->name, source_p->hopcount+1,
632 (unsigned long)source_p->tsinfo,
633 ubuf, source_p->username, source_p->host,
634 source_p->servptr->name, source_p->info);
635 }
636 }
637 }
638
639 /* valid_hostname()
640 *
641 * Inputs - pointer to hostname
642 * Output - 1 if valid, 0 if not
643 * Side effects - check hostname for validity
644 *
645 * NOTE: this doesn't allow a hostname to begin with a dot and
646 * will not allow more dots than chars.
647 */
648 int
649 valid_hostname(const char *hostname)
650 {
651 const char *p = hostname;
652
653 assert(p != NULL);
654
655 if (*p == '.' || *p == ':')
656 return 0;
657
658 for (; *p; ++p)
659 if (!IsHostChar(*p))
660 return 0;
661
662 return 1;
663 }
664
665 /* valid_username()
666 *
667 * Inputs - pointer to user
668 * Output - 1 if valid, 0 if not
669 * Side effects - check username for validity
670 *
671 * Absolutely always reject any '*' '!' '?' '@' in an user name
672 * reject any odd control characters names.
673 * Allow '.' in username to allow for "first.last"
674 * style of username
675 */
676 int
677 valid_username(const char *username)
678 {
679 int dots = 0;
680 const char *p = username;
681
682 assert(p != NULL);
683
684 if (*p == '~')
685 ++p;
686
687 /* reject usernames that don't start with an alphanum
688 * i.e. reject jokers who have '-@somehost' or '.@somehost'
689 * or "-hi-@somehost", "h-----@somehost" would still be accepted.
690 */
691 if (!IsAlNum(*p))
692 return 0;
693
694 while (*++p)
695 {
696 if ((*p == '.') && ConfigFileEntry.dots_in_ident)
697 {
698 if (++dots > ConfigFileEntry.dots_in_ident)
699 return 0;
700 if (!IsUserChar(*(p + 1)))
701 return 0;
702 }
703 else if (!IsUserChar(*p))
704 return 0;
705 }
706
707 return 1;
708 }
709
710 /* clean_nick_name()
711 *
712 * input - nickname
713 * - whether it's a local nick (1) or remote (0)
714 * output - none
715 * side effects - walks through the nickname, returning 0 if erroneous
716 */
717 int
718 valid_nickname(const char *nickname, const int local)
719 {
720 const char *p = nickname;
721 assert(nickname && *nickname);
722
723 /* nicks can't start with a digit or - or be 0 length */
724 /* This closer duplicates behaviour of hybrid-6 */
725 if (*p == '-' || (IsDigit(*p) && local) || *p == '\0')
726 return 0;
727
728 for (; *p; ++p)
729 if (!IsNickChar(*p))
730 return 0;
731
732 return p - nickname <= (NICKLEN - 1);
733 }
734
735 /* report_and_set_user_flags()
736 *
737 * inputs - pointer to source_p
738 * - pointer to aconf for this user
739 * output - NONE
740 * side effects - Report to user any special flags
741 * they are getting, and set them.
742 */
743 static void
744 report_and_set_user_flags(struct Client *source_p, const struct AccessItem *aconf)
745 {
746 /* If this user is being spoofed, tell them so */
747 if (IsConfDoSpoofIp(aconf))
748 {
749 sendto_one(source_p,
750 ":%s NOTICE %s :*** Spoofing your IP. congrats.",
751 me.name, source_p->name);
752 }
753
754 /* If this user is in the exception class, Set it "E lined" */
755 if (IsConfExemptKline(aconf))
756 {
757 SetExemptKline(source_p);
758 sendto_one(source_p,
759 ":%s NOTICE %s :*** You are exempt from K/D/G lines. congrats.",
760 me.name, source_p->name);
761 }
762
763 /* The else here is to make sure that G line exempt users
764 * do not get noticed twice.
765 */
766 else if (IsConfExemptGline(aconf))
767 {
768 SetExemptGline(source_p);
769 sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from G lines.",
770 me.name, source_p->name);
771 }
772
773 if (IsConfExemptResv(aconf))
774 {
775 SetExemptResv(source_p);
776 sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from resvs.",
777 me.name, source_p->name);
778 }
779
780 /* If this user is exempt from user limits set it "F lined" */
781 if (IsConfExemptLimits(aconf))
782 {
783 SetExemptLimits(source_p);
784 sendto_one(source_p,
785 ":%s NOTICE %s :*** You are exempt from user limits. congrats.",
786 me.name,source_p->name);
787 }
788
789 if (IsConfCanFlood(aconf))
790 {
791 SetCanFlood(source_p);
792 sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from flood "
793 "protection, aren't you fearsome.",
794 me.name, source_p->name);
795 }
796 }
797
798 /* change_simple_umode()
799 *
800 * this callback can be hooked to allow special handling of
801 * certain usermodes
802 */
803 static void *
804 change_simple_umode(va_list args)
805 {
806 struct Client *client_p;
807 struct Client *source_p;
808 int what;
809 unsigned int flag;
810
811 client_p = va_arg(args, struct Client *);
812 source_p = va_arg(args, struct Client *);
813 what = va_arg(args, int);
814 flag = va_arg(args, unsigned int);
815
816 if (what == MODE_ADD)
817 AddUMode(source_p, flag);
818 else
819 DelUMode(source_p, flag);
820
821 return NULL;
822 }
823
824 /* set_user_mode()
825 *
826 * added 15/10/91 By Darren Reed.
827 * parv[0] - sender
828 * parv[1] - username to change mode for
829 * parv[2] - modes to change
830 */
831 void
832 set_user_mode(struct Client *client_p, struct Client *source_p,
833 int parc, char *parv[])
834 {
835 unsigned int flag, setflags;
836 char **p, *m, buf[IRCD_BUFSIZE];
837 struct Client *target_p;
838 int what = MODE_ADD, badflag = 0, i;
839
840 assert(!(parc < 2));
841
842 if ((target_p = find_person(client_p, parv[1])) == NULL)
843 {
844 if (MyConnect(source_p))
845 sendto_one(source_p, form_str(ERR_NOSUCHCHANNEL),
846 me.name, source_p->name, parv[1]);
847 return;
848 }
849
850 if (IsServer(source_p))
851 {
852 sendto_realops_flags(UMODE_ALL, L_ADMIN, "*** Mode for User %s from %s",
853 parv[1], source_p->name);
854 return;
855 }
856
857 if (source_p != target_p)
858 {
859 sendto_one(source_p, form_str(ERR_USERSDONTMATCH),
860 me.name, source_p->name);
861 return;
862 }
863
864 if (parc < 3)
865 {
866 m = buf;
867 *m++ = '+';
868
869 for (i = 0; i < 128; i++)
870 if (HasUMode(source_p, user_modes[i]))
871 *m++ = (char)i;
872 *m = '\0';
873
874 sendto_one(source_p, form_str(RPL_UMODEIS),
875 me.name, source_p->name, buf);
876 return;
877 }
878
879 execute_callback(entering_umode_cb, client_p, source_p);
880
881 /* find flags already set for user */
882 setflags = source_p->umodes;
883
884 /* parse mode change string(s) */
885 for (p = &parv[2]; p && *p; p++)
886 {
887 for (m = *p; *m; m++)
888 {
889 switch (*m)
890 {
891 case '+':
892 what = MODE_ADD;
893 break;
894 case '-':
895 what = MODE_DEL;
896 break;
897 case 'o':
898 if (what == MODE_ADD)
899 {
900 if (IsServer(client_p) && !HasUMode(source_p, UMODE_OPER))
901 {
902 ++Count.oper;
903 SetOper(source_p);
904 }
905 }
906 else
907 {
908 /* Only decrement the oper counts if an oper to begin with
909 * found by Pat Szuta, Perly , perly@xnet.com
910 */
911 if (!HasUMode(source_p, UMODE_OPER))
912 break;
913
914 ClearOper(source_p);
915 Count.oper--;
916
917 if (MyConnect(source_p))
918 {
919 dlink_node *dm;
920
921 detach_conf(source_p, OPER_TYPE);
922 ClrOFlag(source_p);
923 DelUMode(source_p, ConfigFileEntry.oper_only_umodes);
924
925 if ((dm = dlinkFindDelete(&oper_list, source_p)) != NULL)
926 free_dlink_node(dm);
927 }
928 }
929
930 break;
931
932 /* we may not get these,
933 * but they shouldnt be in default
934 */
935 case 'r':
936 case ' ' :
937 case '\n':
938 case '\r':
939 case '\t':
940 break;
941
942 default:
943 if ((flag = user_modes[(unsigned char)*m]))
944 {
945 if (MyConnect(source_p) && !HasUMode(source_p, UMODE_OPER) &&
946 (ConfigFileEntry.oper_only_umodes & flag))
947 {
948 badflag = 1;
949 }
950 else
951 execute_callback(umode_cb, client_p, source_p, what, flag);
952 }
953 else
954 {
955 if (MyConnect(source_p))
956 badflag = 1;
957 }
958
959 break;
960 }
961 }
962 }
963
964 if (badflag)
965 sendto_one(source_p, form_str(ERR_UMODEUNKNOWNFLAG),
966 me.name, source_p->name);
967
968 if (HasUMode(source_p, UMODE_NCHANGE) && !HasOFlag(source_p, OPER_FLAG_N))
969 {
970 sendto_one(source_p, ":%s NOTICE %s :*** You have no nchange flag;",
971 me.name, source_p->name);
972 DelUMode(source_p, UMODE_NCHANGE);
973 }
974
975 if (MyConnect(source_p) && HasUMode(source_p, UMODE_ADMIN) &&
976 !HasOFlag(source_p, OPER_FLAG_HIDDEN_ADMIN|OPER_FLAG_ADMIN))
977 {
978 sendto_one(source_p, ":%s NOTICE %s :*** You have no admin flag;",
979 me.name, source_p->name);
980 DelUMode(source_p, UMODE_ADMIN);
981 }
982
983 if (!(setflags & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
984 ++Count.invisi;
985 if ((setflags & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
986 --Count.invisi;
987
988 /*
989 * compare new flags with old flags and send string which
990 * will cause servers to update correctly.
991 */
992 send_umode_out(client_p, source_p, setflags);
993 }
994
995 /* send_umode()
996 * send the MODE string for user (user) to connection client_p
997 * -avalon
998 *
999 * inputs - client_p
1000 * - source_p
1001 * - int old
1002 * - sendmask mask of modes to send
1003 * - suplied umode_buf
1004 * output - NONE
1005 */
1006 void
1007 send_umode(struct Client *client_p, struct Client *source_p,
1008 unsigned int old, unsigned int sendmask, char *umode_buf)
1009 {
1010 char *m = umode_buf;
1011 int what = 0;
1012 unsigned int i;
1013 unsigned int flag;
1014
1015 /*
1016 * build a string in umode_buf to represent the change in the user's
1017 * mode between the new (source_p->umodes) and 'old'.
1018 */
1019 for (i = 0; i < 128; i++)
1020 {
1021 flag = user_modes[i];
1022 if (!flag)
1023 continue;
1024
1025 if (MyClient(source_p) && !(flag & sendmask))
1026 continue;
1027
1028 if ((flag & old) && !HasUMode(source_p, flag))
1029 {
1030 if (what == MODE_DEL)
1031 *m++ = (char)i;
1032 else
1033 {
1034 what = MODE_DEL;
1035 *m++ = '-';
1036 *m++ = (char)i;
1037 }
1038 }
1039 else if (!(flag & old) && HasUMode(source_p, flag))
1040 {
1041 if (what == MODE_ADD)
1042 *m++ = (char)i;
1043 else
1044 {
1045 what = MODE_ADD;
1046 *m++ = '+';
1047 *m++ = (char)i;
1048 }
1049 }
1050 }
1051
1052 *m = '\0';
1053
1054 if (*umode_buf && client_p)
1055 sendto_one(client_p, ":%s!%s@%s MODE %s :%s",
1056 source_p->name, source_p->username,
1057 source_p->host, source_p->name, umode_buf);
1058 }
1059
1060 /* send_umode_out()
1061 *
1062 * inputs -
1063 * output - NONE
1064 * side effects - Only send ubuf out to servers that know about this client
1065 */
1066 void
1067 send_umode_out(struct Client *client_p, struct Client *source_p,
1068 unsigned int old)
1069 {
1070 char buf[IRCD_BUFSIZE] = { '\0' };
1071 dlink_node *ptr = NULL;
1072
1073 send_umode(NULL, source_p, old, HasOFlag(source_p, OPER_FLAG_HIDDEN_ADMIN) ?
1074 SEND_UMODES & ~UMODE_ADMIN : SEND_UMODES, buf);
1075
1076 if (buf[0])
1077 {
1078 DLINK_FOREACH(ptr, serv_list.head)
1079 {
1080 struct Client *target_p = ptr->data;
1081
1082 if ((target_p != client_p) && (target_p != source_p))
1083 sendto_one(target_p, ":%s MODE %s :%s",
1084 ID_or_name(source_p, target_p),
1085 ID_or_name(source_p, target_p), buf);
1086 }
1087 }
1088
1089 if (client_p && MyClient(client_p))
1090 send_umode(client_p, source_p, old, 0xffffffff, buf);
1091 }
1092
1093 /* user_welcome()
1094 *
1095 * inputs - client pointer to client to welcome
1096 * output - NONE
1097 * side effects -
1098 */
1099 static void
1100 user_welcome(struct Client *source_p)
1101 {
1102 #if defined(__TIME__) && defined(__DATE__)
1103 static const char built_date[] = __DATE__ " at " __TIME__;
1104 #else
1105 static const char built_date[] = "unknown";
1106 #endif
1107
1108 #ifdef HAVE_LIBCRYPTO
1109 if (source_p->localClient->fd.ssl != NULL)
1110 sendto_one(source_p, ":%s NOTICE %s :*** Connected securely via %s",
1111 me.name, source_p->name,
1112 ssl_get_cipher(source_p->localClient->fd.ssl));
1113 #endif
1114
1115 sendto_one(source_p, form_str(RPL_WELCOME), me.name, source_p->name,
1116 ServerInfo.network_name, source_p->name);
1117 sendto_one(source_p, form_str(RPL_YOURHOST), me.name, source_p->name,
1118 get_listener_name(source_p->localClient->listener), ircd_version);
1119 sendto_one(source_p, form_str(RPL_CREATED),
1120 me.name, source_p->name, built_date);
1121 sendto_one(source_p, form_str(RPL_MYINFO),
1122 me.name, source_p->name, me.name, ircd_version, umode_buffer);
1123 show_isupport(source_p);
1124
1125 if (source_p->id[0] != '\0')
1126 sendto_one(source_p, form_str(RPL_YOURID), me.name,
1127 source_p->name, source_p->id);
1128
1129 show_lusers(source_p);
1130
1131 if (ConfigFileEntry.short_motd)
1132 {
1133 sendto_one(source_p, ":%s NOTICE %s :*** Notice -- motd was last changed at %s",
1134 me.name, source_p->name, ConfigFileEntry.motd.lastChangedDate);
1135 sendto_one(source_p,
1136 ":%s NOTICE %s :*** Notice -- Please read the motd if you haven't "
1137 "read it", me.name, source_p->name);
1138 sendto_one(source_p, form_str(RPL_MOTDSTART),
1139 me.name, source_p->name, me.name);
1140 sendto_one(source_p, form_str(RPL_MOTD),
1141 me.name, source_p->name,
1142 "*** This is the short motd ***");
1143 sendto_one(source_p, form_str(RPL_ENDOFMOTD),
1144 me.name, source_p->name);
1145 }
1146 else
1147 send_message_file(source_p, &ConfigFileEntry.motd);
1148 }
1149
1150 /* check_xline()
1151 *
1152 * inputs - pointer to client to test
1153 * outupt - 1 if exiting 0 if ok
1154 * side effects -
1155 */
1156 static int
1157 check_xline(struct Client *source_p)
1158 {
1159 struct ConfItem *conf = NULL;
1160 const char *reason = NULL;
1161
1162 if ((conf = find_matching_name_conf(XLINE_TYPE, source_p->info, NULL, NULL, 0)) ||
1163 (conf = find_matching_name_conf(RXLINE_TYPE, source_p->info, NULL, NULL, 0)))
1164 {
1165 struct MatchItem *reg = map_to_conf(conf);
1166
1167 ++reg->count;
1168
1169 if (reg->reason != NULL)
1170 reason = reg->reason;
1171 else
1172 reason = "No Reason";
1173
1174 sendto_realops_flags(UMODE_REJ, L_ALL,
1175 "X-line Rejecting [%s] [%s], user %s [%s]",
1176 source_p->info, reason,
1177 get_client_name(source_p, HIDE_IP),
1178 source_p->sockhost);
1179
1180 ++ServerStats.is_ref;
1181 if (REJECT_HOLD_TIME > 0)
1182 {
1183 sendto_one(source_p, ":%s NOTICE %s :Bad user info",
1184 me.name, source_p->name);
1185 source_p->localClient->reject_delay = CurrentTime + REJECT_HOLD_TIME;
1186 SetCaptured(source_p);
1187 }
1188 else
1189 exit_client(source_p, &me, "Bad user info");
1190 return 1;
1191 }
1192
1193 return 0;
1194 }
1195
1196 /* oper_up()
1197 *
1198 * inputs - pointer to given client to oper
1199 * output - NONE
1200 * side effects - Blindly opers up given source_p, using aconf info
1201 * all checks on passwords have already been done.
1202 * This could also be used by rsa oper routines.
1203 */
1204 void
1205 oper_up(struct Client *source_p)
1206 {
1207 unsigned int old = source_p->umodes;
1208 const char *operprivs = "";
1209 const struct AccessItem *oconf = NULL;
1210
1211 assert(source_p->localClient->confs.head);
1212 oconf = map_to_conf((source_p->localClient->confs.head)->data);
1213
1214 ++Count.oper;
1215 SetOper(source_p);
1216
1217 if (oconf->modes)
1218 AddUMode(source_p, oconf->modes);
1219 else if (ConfigFileEntry.oper_umodes)
1220 AddUMode(source_p, ConfigFileEntry.oper_umodes);
1221
1222 if (!(old & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
1223 ++Count.invisi;
1224 if ((old & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
1225 --Count.invisi;
1226
1227 assert(dlinkFind(&oper_list, source_p) == NULL);
1228 dlinkAdd(source_p, make_dlink_node(), &oper_list);
1229
1230 operprivs = oper_privs_as_string(oconf->port);
1231
1232 AddOFlag(source_p, oconf->port);
1233
1234 if (HasOFlag(source_p, OPER_FLAG_HIDDEN_ADMIN|OPER_FLAG_ADMIN))
1235 AddUMode(source_p, UMODE_ADMIN);
1236 if (!HasOFlag(source_p, OPER_FLAG_N))
1237 DelUMode(source_p, UMODE_NCHANGE);
1238
1239 sendto_realops_flags(UMODE_ALL, L_ALL, "%s (%s@%s) is now an operator",
1240 source_p->name, source_p->username, source_p->host);
1241 send_umode_out(source_p, source_p, old);
1242 sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
1243 sendto_one(source_p, ":%s NOTICE %s :*** Oper privs are %s",
1244 me.name, source_p->name, operprivs);
1245 send_message_file(source_p, &ConfigFileEntry.opermotd);
1246 }
1247
1248 static char new_uid[TOTALSIDUID + 1]; /* allow for \0 */
1249
1250 int
1251 valid_sid(const char *sid)
1252 {
1253 if (strlen(sid) == IRC_MAXSID)
1254 if (IsDigit(*sid))
1255 if (IsAlNum(*(sid + 1)) && IsAlNum(*(sid + 2)))
1256 return 1;
1257
1258 return 0;
1259 }
1260
1261 /*
1262 * init_uid()
1263 *
1264 * inputs - NONE
1265 * output - NONE
1266 * side effects - new_uid is filled in with server id portion (sid)
1267 * (first 3 bytes) or defaulted to 'A'.
1268 * Rest is filled in with 'A'
1269 */
1270 void
1271 init_uid(void)
1272 {
1273 int i;
1274
1275 memset(new_uid, 0, sizeof(new_uid));
1276
1277 if (!EmptyString(ServerInfo.sid))
1278 strlcpy(new_uid, ServerInfo.sid, sizeof(new_uid));
1279
1280 for (i = 0; i < IRC_MAXSID; ++i)
1281 if (new_uid[i] == '\0')
1282 new_uid[i] = 'A';
1283
1284 /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1285 /* Yes nenolod, I have known it was off by one ever since I wrote it
1286 * But *JUST* for you, though, it really doesn't look as *pretty*
1287 * -Dianora
1288 */
1289 memcpy(new_uid + IRC_MAXSID, "AAAAA@", IRC_MAXUID);
1290
1291 entering_umode_cb = register_callback("entering_umode", NULL);
1292 umode_cb = register_callback("changing_umode", change_simple_umode);
1293 }
1294
1295 /*
1296 * add_one_to_uid
1297 *
1298 * inputs - index number into new_uid
1299 * output - NONE
1300 * side effects - new_uid is incremented by one
1301 * note this is a recursive function
1302 */
1303 static void
1304 add_one_to_uid(int i)
1305 {
1306 if (i != IRC_MAXSID) /* Not reached server SID portion yet? */
1307 {
1308 if (new_uid[i] == 'Z')
1309 new_uid[i] = '0';
1310 else if (new_uid[i] == '9')
1311 {
1312 new_uid[i] = 'A';
1313 add_one_to_uid(i-1);
1314 }
1315 else
1316 ++new_uid[i];
1317 }
1318 else
1319 {
1320 /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1321 if (new_uid[i] == 'Z')
1322 memcpy(new_uid + IRC_MAXSID, "AAAAAA", IRC_MAXUID);
1323 else
1324 ++new_uid[i];
1325 }
1326 }
1327
1328 /*
1329 * uid_get
1330 *
1331 * inputs - struct Client *
1332 * output - new UID is returned to caller
1333 * side effects - new_uid is incremented by one.
1334 */
1335 static const char *
1336 uid_get(void)
1337 {
1338 add_one_to_uid(TOTALSIDUID - 1); /* index from 0 */
1339 return new_uid;
1340 }
1341
1342 /*
1343 * init_isupport()
1344 *
1345 * input - NONE
1346 * output - NONE
1347 * side effects - Must be called before isupport is enabled
1348 */
1349 void
1350 init_isupport(void)
1351 {
1352 isupportFile = init_MessageLine();
1353
1354 add_isupport("CALLERID", NULL, -1);
1355 add_isupport("CASEMAPPING", CASEMAP, -1);
1356 add_isupport("DEAF", "D", -1);
1357 add_isupport("KICKLEN", NULL, KICKLEN);
1358 add_isupport("MODES", NULL, MAXMODEPARAMS);
1359 add_isupport("NICKLEN", NULL, NICKLEN-1);
1360 #ifdef HALFOPS
1361 add_isupport("PREFIX", "(ohv)@%+", -1);
1362 add_isupport("STATUSMSG", "@%+", -1);
1363 #else
1364 add_isupport("PREFIX", "(ov)@+", -1);
1365 add_isupport("STATUSMSG", "@+", -1);
1366 #endif
1367 add_isupport("TOPICLEN", NULL, TOPICLEN);
1368 }
1369
1370 /*
1371 * add_isupport()
1372 *
1373 * input - name of supported function
1374 * - options if any
1375 * - number if any
1376 * output - NONE
1377 * side effects - Each supported item must call this when activated
1378 */
1379 void
1380 add_isupport(const char *name, const char *options, int n)
1381 {
1382 dlink_node *ptr;
1383 struct Isupport *support;
1384
1385 DLINK_FOREACH(ptr, support_list.head)
1386 {
1387 support = ptr->data;
1388 if (irccmp(support->name, name) == 0)
1389 {
1390 MyFree(support->name);
1391 MyFree(support->options);
1392 break;
1393 }
1394 }
1395
1396 if (ptr == NULL)
1397 {
1398 support = MyMalloc(sizeof(*support));
1399 dlinkAddTail(support, &support->node, &support_list);
1400 }
1401
1402 DupString(support->name, name);
1403 if (options != NULL)
1404 DupString(support->options, options);
1405 support->number = n;
1406
1407 rebuild_isupport_message_line();
1408 }
1409
1410 /*
1411 * delete_isupport()
1412 *
1413 * input - name of supported function
1414 * output - NONE
1415 * side effects - Each supported item must call this when deactivated
1416 */
1417 void
1418 delete_isupport(const char *name)
1419 {
1420 dlink_node *ptr;
1421 struct Isupport *support;
1422
1423 DLINK_FOREACH(ptr, support_list.head)
1424 {
1425 support = ptr->data;
1426 if (irccmp(support->name, name) == 0)
1427 {
1428 dlinkDelete(ptr, &support_list);
1429 MyFree(support->name);
1430 MyFree(support->options);
1431 MyFree(support);
1432 break;
1433 }
1434 }
1435
1436 rebuild_isupport_message_line();
1437 }
1438
1439 /*
1440 * rebuild_isupport_message_line
1441 *
1442 * input - NONE
1443 * output - NONE
1444 * side effects - Destroy the isupport MessageFile lines, and rebuild.
1445 */
1446 void
1447 rebuild_isupport_message_line(void)
1448 {
1449 char isupportbuffer[IRCD_BUFSIZE];
1450 char *p = isupportbuffer;
1451 dlink_node *ptr = NULL;
1452 int n = 0;
1453 int tokens = 0;
1454 size_t len = 0;
1455 size_t reserve = strlen(me.name) + HOSTLEN + strlen(form_str(RPL_ISUPPORT));
1456
1457 destroy_MessageLine(isupportFile);
1458
1459 DLINK_FOREACH(ptr, support_list.head)
1460 {
1461 struct Isupport *support = ptr->data;
1462
1463 p += (n = ircsprintf(p, "%s", support->name));
1464 len += n;
1465
1466 if (support->options != NULL)
1467 {
1468 p += (n = ircsprintf(p, "=%s", support->options));
1469 len += n;
1470 }
1471
1472 if (support->number > 0)
1473 {
1474 p += (n = ircsprintf(p, "=%d", support->number));
1475 len += n;
1476 }
1477
1478 *p++ = ' ';
1479 len++;
1480 *p = '\0';
1481
1482 if (++tokens == (MAXPARA-2) || len >= (sizeof(isupportbuffer)-reserve))
1483 { /* arbritrary for now */
1484 if (*--p == ' ')
1485 *p = '\0';
1486
1487 addto_MessageLine(isupportFile, isupportbuffer);
1488 p = isupportbuffer;
1489 len = 0;
1490 n = tokens = 0;
1491 }
1492 }
1493
1494 if (len != 0)
1495 {
1496 if (*--p == ' ')
1497 *p = '\0';
1498 addto_MessageLine(isupportFile, isupportbuffer);
1499 }
1500 }

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svn:eol-style native
svn:keywords Id Revision

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