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root/svn/ircd-hybrid/trunk/src/user.c
Revision: 2916
Committed: Sat Jan 25 21:09:18 2014 UTC (10 years, 2 months ago) by michael
Content type: text/x-csrc
Original Path: ircd-hybrid/trunk/src/s_user.c
File size: 41020 byte(s)
Log Message:
- Clean up all files in include/ (fixed indentation, removed whitespaces/tabs)
- Fixed copyright years

File Contents

# Content
1 /*
2 * ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3 *
4 * Copyright (c) 1997-2014 ircd-hybrid development team
5 *
6 * This program 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 this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19 * USA
20 */
21
22 /*! \file s_user.c
23 * \brief User related functions.
24 * \version $Id$
25 */
26
27 #include "stdinc.h"
28 #include "list.h"
29 #include "s_user.h"
30 #include "s_misc.h"
31 #include "channel.h"
32 #include "channel_mode.h"
33 #include "client.h"
34 #include "fdlist.h"
35 #include "hash.h"
36 #include "irc_string.h"
37 #include "s_bsd.h"
38 #include "ircd.h"
39 #include "listener.h"
40 #include "motd.h"
41 #include "numeric.h"
42 #include "conf.h"
43 #include "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 "parse.h"
55 #include "watch.h"
56
57 static char umode_buffer[IRCD_BUFSIZE];
58
59 static void user_welcome(struct Client *);
60 static void report_and_set_user_flags(struct Client *, const struct MaskItem *);
61 static int check_xline(struct Client *);
62 static void introduce_client(struct Client *);
63 static const char *uid_get(void);
64
65 /* Used for building up the isupport string,
66 * used with init_isupport, add_isupport, delete_isupport
67 */
68
69 struct Isupport
70 {
71 dlink_node node;
72 char *name;
73 char *options;
74 int number;
75 };
76
77 static dlink_list support_list;
78 static dlink_list support_list_lines;
79
80 /* memory is cheap. map 0-255 to equivalent mode */
81 const unsigned int user_modes[256] =
82 {
83 /* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x0F */
84 /* 0x10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1F */
85 /* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2F */
86 /* 0x30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x3F */
87 0, /* @ */
88 0, /* A */
89 0, /* B */
90 0, /* C */
91 UMODE_DEAF, /* D */
92 0, /* E */
93 UMODE_FARCONNECT, /* F */
94 UMODE_SOFTCALLERID, /* G */
95 UMODE_HIDDEN, /* H */
96 0, /* I */
97 0, /* J */
98 0, /* K */
99 0, /* L */
100 0, /* M */
101 0, /* N */
102 0, /* O */
103 0, /* P */
104 0, /* Q */
105 UMODE_REGONLY, /* R */
106 UMODE_SSL, /* S */
107 0, /* T */
108 0, /* U */
109 0, /* V */
110 UMODE_WEBIRC, /* W */
111 0, /* X */
112 0, /* Y */
113 0, /* Z 0x5A */
114 0, 0, 0, 0, 0, /* 0x5F */
115 0, /* 0x60 */
116 UMODE_ADMIN, /* a */
117 UMODE_BOTS, /* b */
118 UMODE_CCONN, /* c */
119 UMODE_DEBUG, /* d */
120 UMODE_EXTERNAL, /* e */
121 UMODE_FULL, /* f */
122 UMODE_CALLERID, /* g */
123 0, /* h */
124 UMODE_INVISIBLE, /* i */
125 UMODE_REJ, /* j */
126 UMODE_SKILL, /* k */
127 UMODE_LOCOPS, /* l */
128 0, /* m */
129 UMODE_NCHANGE, /* n */
130 UMODE_OPER, /* o */
131 0, /* p */
132 0, /* q */
133 UMODE_REGISTERED, /* r */
134 UMODE_SERVNOTICE, /* s */
135 0, /* t */
136 UMODE_UNAUTH, /* u */
137 0, /* v */
138 UMODE_WALLOP, /* w */
139 UMODE_HIDDENHOST, /* x */
140 UMODE_SPY, /* y */
141 UMODE_OPERWALL, /* z 0x7A */
142 0,0,0,0,0, /* 0x7B - 0x7F */
143
144 /* 0x80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x8F */
145 /* 0x90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x9F */
146 /* 0xA0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xAF */
147 /* 0xB0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xBF */
148 /* 0xC0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xCF */
149 /* 0xD0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xDF */
150 /* 0xE0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xEF */
151 /* 0xF0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xFF */
152 };
153
154 void
155 assemble_umode_buffer(void)
156 {
157 unsigned int idx = 0;
158 char *umode_buffer_ptr = umode_buffer;
159
160 for (; idx < (sizeof(user_modes) / sizeof(user_modes[0])); ++idx)
161 if (user_modes[idx])
162 *umode_buffer_ptr++ = idx;
163
164 *umode_buffer_ptr = '\0';
165 }
166
167 /* show_lusers()
168 *
169 * inputs - pointer to client
170 * output - NONE
171 * side effects - display to client user counts etc.
172 */
173 void
174 show_lusers(struct Client *source_p)
175 {
176 const char *from, *to;
177
178 if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
179 {
180 from = me.id;
181 to = source_p->id;
182 }
183 else
184 {
185 from = me.name;
186 to = source_p->name;
187 }
188
189 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
190 sendto_one(source_p, form_str(RPL_LUSERCLIENT),
191 from, to, (Count.total-Count.invisi),
192 Count.invisi, dlink_list_length(&global_serv_list));
193 else
194 sendto_one(source_p, form_str(RPL_LUSERCLIENT), from, to,
195 (Count.total-Count.invisi), Count.invisi, 1);
196
197 if (Count.oper > 0)
198 sendto_one(source_p, form_str(RPL_LUSEROP),
199 from, to, Count.oper);
200
201 if (dlink_list_length(&unknown_list) > 0)
202 sendto_one(source_p, form_str(RPL_LUSERUNKNOWN),
203 from, to, dlink_list_length(&unknown_list));
204
205 if (dlink_list_length(&global_channel_list) > 0)
206 sendto_one(source_p, form_str(RPL_LUSERCHANNELS),
207 from, to, dlink_list_length(&global_channel_list));
208
209 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
210 {
211 sendto_one(source_p, form_str(RPL_LUSERME),
212 from, to, Count.local, Count.myserver);
213 sendto_one(source_p, form_str(RPL_LOCALUSERS),
214 from, to, Count.local, Count.max_loc);
215 }
216 else
217 {
218 sendto_one(source_p, form_str(RPL_LUSERME),
219 from, to, Count.total, 0);
220 sendto_one(source_p, form_str(RPL_LOCALUSERS),
221 from, to, Count.total, Count.max_tot);
222 }
223
224 sendto_one(source_p, form_str(RPL_GLOBALUSERS),
225 from, to, Count.total, Count.max_tot);
226
227 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
228 sendto_one(source_p, form_str(RPL_STATSCONN), from, to,
229 Count.max_loc_con, Count.max_loc_cli, Count.totalrestartcount);
230
231 if (Count.local > Count.max_loc_cli)
232 Count.max_loc_cli = Count.local;
233
234 if ((Count.local + Count.myserver) > Count.max_loc_con)
235 Count.max_loc_con = Count.local + Count.myserver;
236 }
237
238 /* show_isupport()
239 *
240 * inputs - pointer to client
241 * output - NONE
242 * side effects - display to client what we support (for them)
243 */
244 void
245 show_isupport(struct Client *source_p)
246 {
247 const dlink_node *ptr = NULL;
248
249 DLINK_FOREACH(ptr, support_list_lines.head)
250 sendto_one(source_p, form_str(RPL_ISUPPORT), me.name,
251 source_p->name, ptr->data);
252 }
253
254 /*
255 ** register_local_user
256 ** This function is called when both NICK and USER messages
257 ** have been accepted for the client, in whatever order. Only
258 ** after this, is the USER message propagated.
259 **
260 ** NICK's must be propagated at once when received, although
261 ** it would be better to delay them too until full info is
262 ** available. Doing it is not so simple though, would have
263 ** to implement the following:
264 **
265 ** (actually it has been implemented already for a while) -orabidoo
266 **
267 ** 1) user telnets in and gives only "NICK foobar" and waits
268 ** 2) another user far away logs in normally with the nick
269 ** "foobar" (quite legal, as this server didn't propagate
270 ** it).
271 ** 3) now this server gets nick "foobar" from outside, but
272 ** has alread the same defined locally. Current server
273 ** would just issue "KILL foobar" to clean out dups. But,
274 ** this is not fair. It should actually request another
275 ** nick from local user or kill him/her...
276 */
277 void
278 register_local_user(struct Client *source_p)
279 {
280 const char *id = NULL;
281 const struct MaskItem *conf = NULL;
282
283 assert(source_p != NULL);
284 assert(source_p == source_p->from);
285 assert(MyConnect(source_p));
286 assert(!source_p->localClient->registration);
287
288 ClearCap(source_p, CAP_TS6);
289
290 if (ConfigFileEntry.ping_cookie)
291 {
292 if (!IsPingSent(source_p) && !source_p->localClient->random_ping)
293 {
294 do
295 source_p->localClient->random_ping = genrand_int32();
296 while (!source_p->localClient->random_ping);
297
298 sendto_one(source_p, "PING :%u",
299 source_p->localClient->random_ping);
300 SetPingSent(source_p);
301 return;
302 }
303
304 if (!HasPingCookie(source_p))
305 return;
306 }
307
308 source_p->localClient->last_privmsg = CurrentTime;
309 /* Straight up the maximum rate of flooding... */
310 source_p->localClient->allow_read = MAX_FLOOD_BURST;
311
312 if (!check_client(source_p))
313 return;
314
315 if (!valid_hostname(source_p->host))
316 {
317 sendto_one(source_p, ":%s NOTICE %s :*** Notice -- You have an illegal "
318 "character in your hostname", me.name, source_p->name);
319 strlcpy(source_p->host, source_p->sockhost,
320 sizeof(source_p->host));
321 }
322
323 conf = source_p->localClient->confs.head->data;
324
325 if (!IsGotId(source_p))
326 {
327 char username[USERLEN + 1];
328 const char *p = username;
329 unsigned int i = 0;
330
331 if (IsNeedIdentd(conf))
332 {
333 ++ServerStats.is_ref;
334 sendto_one(source_p, ":%s NOTICE %s :*** Notice -- You need to install "
335 "identd to use this server", me.name, source_p->name);
336 exit_client(source_p, &me, "Install identd");
337 return;
338 }
339
340 strlcpy(username, source_p->username, sizeof(username));
341
342 if (!IsNoTilde(conf))
343 source_p->username[i++] = '~';
344
345 for (; *p && i < USERLEN; ++p)
346 if (*p != '[')
347 source_p->username[i++] = *p;
348
349 source_p->username[i] = '\0';
350 }
351
352 /* password check */
353 if (!EmptyString(conf->passwd))
354 {
355 const char *pass = source_p->localClient->passwd;
356
357 if (!match_conf_password(pass, conf))
358 {
359 ++ServerStats.is_ref;
360 sendto_one(source_p, form_str(ERR_PASSWDMISMATCH),
361 me.name, source_p->name);
362 exit_client(source_p, &me, "Bad Password");
363 return;
364 }
365 }
366
367 /* don't free source_p->localClient->passwd here - it can be required
368 * by masked /stats I if there are auth{} blocks with need_password = no;
369 * --adx
370 */
371
372 /* report if user has &^>= etc. and set flags as needed in source_p */
373 report_and_set_user_flags(source_p, conf);
374
375 if (IsDead(source_p))
376 return;
377
378 /* Limit clients -
379 * We want to be able to have servers and F-line clients
380 * connect, so save room for "buffer" connections.
381 * Smaller servers may want to decrease this, and it should
382 * probably be just a percentage of the MAXCLIENTS...
383 * -Taner
384 */
385 /* Except "F:" clients */
386 if ((Count.local >= ServerInfo.max_clients + MAX_BUFFER) ||
387 (Count.local >= ServerInfo.max_clients && !IsExemptLimits(source_p)))
388 {
389 sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE,
390 "Too many clients, rejecting %s[%s].",
391 source_p->name, source_p->host);
392 ++ServerStats.is_ref;
393 exit_client(source_p, &me, "Sorry, server is full - try later");
394 return;
395 }
396
397 /* valid user name check */
398 if (!valid_username(source_p->username, 1))
399 {
400 char tmpstr2[IRCD_BUFSIZE];
401
402 sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
403 "Invalid username: %s (%s@%s)",
404 source_p->name, source_p->username, source_p->host);
405 ++ServerStats.is_ref;
406 snprintf(tmpstr2, sizeof(tmpstr2), "Invalid username [%s]",
407 source_p->username);
408 exit_client(source_p, &me, tmpstr2);
409 return;
410 }
411
412 if (check_xline(source_p))
413 return;
414
415 while (hash_find_id((id = uid_get())) != NULL)
416 ;
417
418 strlcpy(source_p->id, id, sizeof(source_p->id));
419 hash_add_id(source_p);
420
421 sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE,
422 "Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>",
423 source_p->name, source_p->username, source_p->host,
424 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
425 "255.255.255.255" : source_p->sockhost,
426 get_client_class(&source_p->localClient->confs),
427 source_p->info, source_p->id);
428
429 if (ConfigFileEntry.invisible_on_connect)
430 {
431 AddUMode(source_p, UMODE_INVISIBLE);
432 ++Count.invisi;
433 }
434
435 if (++Count.local > Count.max_loc)
436 {
437 Count.max_loc = Count.local;
438
439 if (!(Count.max_loc % 10))
440 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
441 "New Max Local Clients: %d",
442 Count.max_loc);
443 }
444
445 /* Increment our total user count here */
446 if (++Count.total > Count.max_tot)
447 Count.max_tot = Count.total;
448 ++Count.totalrestartcount;
449
450 assert(source_p->servptr == &me);
451 SetClient(source_p);
452 dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
453
454 source_p->localClient->allow_read = MAX_FLOOD_BURST;
455
456 assert(dlinkFind(&unknown_list, source_p));
457
458 dlink_move_node(&source_p->localClient->lclient_node,
459 &unknown_list, &local_client_list);
460
461 user_welcome(source_p);
462 add_user_host(source_p->username, source_p->host, 0);
463 SetUserHost(source_p);
464
465 introduce_client(source_p);
466 }
467
468 /* register_remote_user()
469 *
470 * inputs - source_p remote or directly connected client
471 * - username to register as
472 * - host name to register as
473 * - server name
474 * - realname (gecos)
475 * output - NONE
476 * side effects - This function is called when a remote client
477 * is introduced by a server.
478 */
479 void
480 register_remote_user(struct Client *source_p,
481 const char *username, const char *host, const char *server,
482 const char *realname)
483 {
484 struct Client *target_p = NULL;
485
486 assert(source_p != NULL);
487 assert(source_p->username != username);
488
489 strlcpy(source_p->host, host, sizeof(source_p->host));
490 strlcpy(source_p->username, username, sizeof(source_p->username));
491
492 /*
493 * coming from another server, take the servers word for it
494 */
495 source_p->servptr = hash_find_server(server);
496
497 /*
498 * Super GhostDetect:
499 * If we can't find the server the user is supposed to be on,
500 * then simply blow the user away. -Taner
501 */
502 if (source_p->servptr == NULL)
503 {
504 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
505 "No server %s for user %s[%s@%s] from %s",
506 server, source_p->name, source_p->username,
507 source_p->host, source_p->from->name);
508 kill_client(source_p->from, source_p, "%s (Server doesn't exist)", me.name);
509
510 AddFlag(source_p, FLAGS_KILLED);
511 exit_client(source_p, &me, "Ghosted Client");
512 return;
513 }
514
515 if ((target_p = source_p->servptr) && target_p->from != source_p->from)
516 {
517 sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE,
518 "Bad User [%s] :%s USER %s@%s %s, != %s[%s]",
519 source_p->from->name, source_p->name, source_p->username,
520 source_p->host, source_p->servptr->name,
521 target_p->name, target_p->from->name);
522 kill_client(source_p->from, source_p,
523 "%s (NICK from wrong direction (%s != %s))",
524 me.name, source_p->servptr->name, target_p->from->name);
525 AddFlag(source_p, FLAGS_KILLED);
526 exit_client(source_p, &me, "USER server wrong direction");
527 return;
528 }
529
530 /*
531 * If the nick has been introduced by a services server,
532 * make it a service as well.
533 */
534 if (HasFlag(source_p->servptr, FLAGS_SERVICE))
535 AddFlag(source_p, FLAGS_SERVICE);
536
537 /* Increment our total user count here */
538 if (++Count.total > Count.max_tot)
539 Count.max_tot = Count.total;
540
541 SetClient(source_p);
542 dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
543 add_user_host(source_p->username, source_p->host, 1);
544 SetUserHost(source_p);
545
546 if (HasFlag(source_p->servptr, FLAGS_EOB))
547 sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE,
548 "Client connecting at %s: %s (%s@%s) [%s] <%s>",
549 source_p->servptr->name,
550 source_p->name, source_p->username, source_p->host,
551 source_p->info, source_p->id);
552
553 introduce_client(source_p);
554 }
555
556 /* introduce_client()
557 *
558 * inputs - source_p
559 * output - NONE
560 * side effects - This common function introduces a client to the rest
561 * of the net, either from a local client connect or
562 * from a remote connect.
563 */
564 static void
565 introduce_client(struct Client *source_p)
566 {
567 dlink_node *server_node = NULL;
568 char ubuf[IRCD_BUFSIZE];
569
570 if (MyClient(source_p))
571 send_umode(source_p, source_p, 0, SEND_UMODES, ubuf);
572 else
573 send_umode(NULL, source_p, 0, SEND_UMODES, ubuf);
574
575 watch_check_hash(source_p, RPL_LOGON);
576
577 if (ubuf[0] == '\0')
578 {
579 ubuf[0] = '+';
580 ubuf[1] = '\0';
581 }
582
583 DLINK_FOREACH(server_node, serv_list.head)
584 {
585 struct Client *server = server_node->data;
586
587 if (server == source_p->from)
588 continue;
589
590 if (IsCapable(server, CAP_SVS))
591 {
592 if (IsCapable(server, CAP_TS6) && HasID(source_p))
593 sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s %s :%s",
594 source_p->servptr->id,
595 source_p->name, source_p->hopcount+1,
596 (unsigned long)source_p->tsinfo,
597 ubuf, source_p->username, source_p->host,
598 (MyClient(source_p) && IsIPSpoof(source_p)) ?
599 "0" : source_p->sockhost, source_p->id,
600 source_p->svid,
601 source_p->info);
602 else
603 sendto_one(server, "NICK %s %d %lu %s %s %s %s %s :%s",
604 source_p->name, source_p->hopcount+1,
605 (unsigned long)source_p->tsinfo,
606 ubuf, source_p->username, source_p->host,
607 source_p->servptr->name, source_p->svid,
608 source_p->info);
609
610 }
611 else
612 {
613 if (IsCapable(server, CAP_TS6) && HasID(source_p))
614 sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s :%s",
615 source_p->servptr->id,
616 source_p->name, source_p->hopcount+1,
617 (unsigned long)source_p->tsinfo,
618 ubuf, source_p->username, source_p->host,
619 (MyClient(source_p) && IsIPSpoof(source_p)) ?
620 "0" : source_p->sockhost, source_p->id, source_p->info);
621 else
622 sendto_one(server, "NICK %s %d %lu %s %s %s %s :%s",
623 source_p->name, source_p->hopcount+1,
624 (unsigned long)source_p->tsinfo,
625 ubuf, source_p->username, source_p->host,
626 source_p->servptr->name, source_p->info);
627 }
628
629 if (!EmptyString(source_p->certfp))
630 sendto_one(server, ":%s CERTFP %s", ID(source_p), source_p->certfp);
631 }
632 }
633
634 /* valid_hostname()
635 *
636 * Inputs - pointer to hostname
637 * Output - 1 if valid, 0 if not
638 * Side effects - check hostname for validity
639 *
640 * NOTE: this doesn't allow a hostname to begin with a dot and
641 * will not allow more dots than chars.
642 */
643 int
644 valid_hostname(const char *hostname)
645 {
646 const char *p = hostname;
647
648 assert(p != NULL);
649
650 if (EmptyString(p) || *p == '.' || *p == ':')
651 return 0;
652
653 for (; *p; ++p)
654 if (!IsHostChar(*p))
655 return 0;
656
657 return p - hostname <= HOSTLEN;
658 }
659
660 /* valid_username()
661 *
662 * Inputs - pointer to user
663 * Output - 1 if valid, 0 if not
664 * Side effects - check username for validity
665 *
666 * Absolutely always reject any '*' '!' '?' '@' in an user name
667 * reject any odd control characters names.
668 * Allow '.' in username to allow for "first.last"
669 * style of username
670 */
671 int
672 valid_username(const char *username, const int local)
673 {
674 int dots = 0;
675 const char *p = username;
676
677 assert(p != NULL);
678
679 if (*p == '~')
680 ++p;
681
682 /*
683 * Reject usernames that don't start with an alphanum
684 * i.e. reject jokers who have '-@somehost' or '.@somehost'
685 * or "-hi-@somehost", "h-----@somehost" would still be accepted.
686 */
687 if (!IsAlNum(*p))
688 return 0;
689
690 if (local)
691 {
692 while (*++p)
693 {
694 if ((*p == '.') && ConfigFileEntry.dots_in_ident)
695 {
696 if (++dots > ConfigFileEntry.dots_in_ident)
697 return 0;
698 if (!IsUserChar(*(p + 1)))
699 return 0;
700 }
701 else if (!IsUserChar(*p))
702 return 0;
703 }
704 }
705 else
706 {
707 while (*++p)
708 if (!IsUserChar(*p))
709 return 0;
710 }
711
712 return p - username <= USERLEN;;
713 }
714
715 /* clean_nick_name()
716 *
717 * input - nickname
718 * - whether it's a local nick (1) or remote (0)
719 * output - none
720 * side effects - walks through the nickname, returning 0 if erroneous
721 */
722 int
723 valid_nickname(const char *nickname, const int local)
724 {
725 const char *p = nickname;
726 assert(nickname && *nickname);
727
728 /* nicks can't start with a digit or - or be 0 length */
729 /* This closer duplicates behaviour of hybrid-6 */
730 if (*p == '-' || (IsDigit(*p) && local) || *p == '\0')
731 return 0;
732
733 for (; *p; ++p)
734 if (!IsNickChar(*p))
735 return 0;
736
737 return p - nickname <= NICKLEN;
738 }
739
740 /* report_and_set_user_flags()
741 *
742 * inputs - pointer to source_p
743 * - pointer to conf for this user
744 * output - NONE
745 * side effects - Report to user any special flags
746 * they are getting, and set them.
747 */
748 static void
749 report_and_set_user_flags(struct Client *source_p, const struct MaskItem *conf)
750 {
751 /* If this user is being spoofed, tell them so */
752 if (IsConfDoSpoofIp(conf))
753 sendto_one(source_p,
754 ":%s NOTICE %s :*** Spoofing your IP. Congrats.",
755 me.name, source_p->name);
756
757 /* If this user is in the exception class, Set it "E lined" */
758 if (IsConfExemptKline(conf))
759 {
760 SetExemptKline(source_p);
761 sendto_one(source_p,
762 ":%s NOTICE %s :*** You are exempt from K/D/G lines. Congrats.",
763 me.name, source_p->name);
764 }
765
766 /*
767 * The else here is to make sure that G line exempt users
768 * do not get noticed twice.
769 */
770 else if (IsConfExemptGline(conf))
771 {
772 SetExemptGline(source_p);
773 sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from G lines. Congrats.",
774 me.name, source_p->name);
775 }
776
777 if (IsConfExemptResv(conf))
778 {
779 SetExemptResv(source_p);
780 sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from resvs. Congrats.",
781 me.name, source_p->name);
782 }
783
784 /* If this user is exempt from user limits set it "F lined" */
785 if (IsConfExemptLimits(conf))
786 {
787 SetExemptLimits(source_p);
788 sendto_one(source_p,
789 ":%s NOTICE %s :*** You are exempt from user limits. Congrats.",
790 me.name,source_p->name);
791 }
792
793 if (IsConfCanFlood(conf))
794 {
795 SetCanFlood(source_p);
796 sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from flood "
797 "protection, aren't you fearsome.",
798 me.name, source_p->name);
799 }
800 }
801
802 /* set_user_mode()
803 *
804 * added 15/10/91 By Darren Reed.
805 * parv[0] - sender
806 * parv[1] - username to change mode for
807 * parv[2] - modes to change
808 */
809 void
810 set_user_mode(struct Client *client_p, struct Client *source_p,
811 const int parc, char *parv[])
812 {
813 unsigned int flag, setflags;
814 char **p, *m, buf[IRCD_BUFSIZE];
815 struct Client *target_p;
816 int what = MODE_ADD, badflag = 0, i;
817
818 assert(!(parc < 2));
819
820 if ((target_p = find_person(client_p, parv[1])) == NULL)
821 {
822 if (MyConnect(source_p))
823 sendto_one(source_p, form_str(ERR_NOSUCHCHANNEL),
824 me.name, source_p->name, parv[1]);
825 return;
826 }
827
828 if (source_p != target_p)
829 {
830 sendto_one(source_p, form_str(ERR_USERSDONTMATCH),
831 me.name, source_p->name);
832 return;
833 }
834
835 if (parc < 3)
836 {
837 m = buf;
838 *m++ = '+';
839
840 for (i = 0; i < 128; ++i)
841 if (HasUMode(source_p, user_modes[i]))
842 *m++ = (char)i;
843 *m = '\0';
844
845 sendto_one(source_p, form_str(RPL_UMODEIS),
846 me.name, source_p->name, buf);
847 return;
848 }
849
850 /* find flags already set for user */
851 setflags = source_p->umodes;
852
853 /* parse mode change string(s) */
854 for (p = &parv[2]; p && *p; ++p)
855 {
856 for (m = *p; *m; ++m)
857 {
858 switch (*m)
859 {
860 case '+':
861 what = MODE_ADD;
862 break;
863 case '-':
864 what = MODE_DEL;
865 break;
866 case 'o':
867 if (what == MODE_ADD)
868 {
869 if (IsServer(client_p) && !HasUMode(source_p, UMODE_OPER))
870 {
871 ++Count.oper;
872 SetOper(source_p);
873 }
874 }
875 else
876 {
877 if (!HasUMode(source_p, UMODE_OPER))
878 break;
879
880 ClearOper(source_p);
881 Count.oper--;
882
883 if (MyConnect(source_p))
884 {
885 dlink_node *dm = NULL;
886
887 detach_conf(source_p, CONF_OPER);
888 ClrOFlag(source_p);
889 DelUMode(source_p, ConfigFileEntry.oper_only_umodes);
890
891 if ((dm = dlinkFindDelete(&oper_list, source_p)) != NULL)
892 free_dlink_node(dm);
893 }
894 }
895
896 break;
897
898 case 'S': /* Only servers may set +S in a burst */
899 case 'W': /* Only servers may set +W in a burst */
900 case 'r': /* Only services may set +r */
901 case 'x': /* Only services may set +x */
902 break;
903
904 default:
905 if ((flag = user_modes[(unsigned char)*m]))
906 {
907 if (MyConnect(source_p) && !HasUMode(source_p, UMODE_OPER) &&
908 (ConfigFileEntry.oper_only_umodes & flag))
909 badflag = 1;
910 else
911 {
912 if (what == MODE_ADD)
913 AddUMode(source_p, flag);
914 else
915 DelUMode(source_p, flag);
916 }
917 }
918 else if (MyConnect(source_p))
919 badflag = 1;
920
921 break;
922 }
923 }
924 }
925
926 if (badflag)
927 sendto_one(source_p, form_str(ERR_UMODEUNKNOWNFLAG),
928 me.name, source_p->name);
929
930 if (MyConnect(source_p) && HasUMode(source_p, UMODE_ADMIN) &&
931 !HasOFlag(source_p, OPER_FLAG_ADMIN))
932 {
933 sendto_one(source_p, ":%s NOTICE %s :*** You have no admin flag;",
934 me.name, source_p->name);
935 DelUMode(source_p, UMODE_ADMIN);
936 }
937
938 if (!(setflags & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
939 ++Count.invisi;
940 if ((setflags & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
941 --Count.invisi;
942
943 /*
944 * compare new flags with old flags and send string which
945 * will cause servers to update correctly.
946 */
947 send_umode_out(client_p, source_p, setflags);
948 }
949
950 /* send_umode()
951 * send the MODE string for user (user) to connection client_p
952 * -avalon
953 *
954 * inputs - client_p
955 * - source_p
956 * - int old
957 * - sendmask mask of modes to send
958 * - suplied umode_buf
959 * output - NONE
960 */
961 void
962 send_umode(struct Client *client_p, struct Client *source_p,
963 unsigned int old, unsigned int sendmask, char *umode_buf)
964 {
965 char *m = umode_buf;
966 int what = 0;
967 unsigned int i;
968 unsigned int flag;
969
970 /*
971 * build a string in umode_buf to represent the change in the user's
972 * mode between the new (source_p->umodes) and 'old'.
973 */
974 for (i = 0; i < 128; ++i)
975 {
976 flag = user_modes[i];
977 if (!flag)
978 continue;
979
980 if (MyClient(source_p) && !(flag & sendmask))
981 continue;
982
983 if ((flag & old) && !HasUMode(source_p, flag))
984 {
985 if (what == MODE_DEL)
986 *m++ = (char)i;
987 else
988 {
989 what = MODE_DEL;
990 *m++ = '-';
991 *m++ = (char)i;
992 }
993 }
994 else if (!(flag & old) && HasUMode(source_p, flag))
995 {
996 if (what == MODE_ADD)
997 *m++ = (char)i;
998 else
999 {
1000 what = MODE_ADD;
1001 *m++ = '+';
1002 *m++ = (char)i;
1003 }
1004 }
1005 }
1006
1007 *m = '\0';
1008
1009 if (*umode_buf && client_p)
1010 sendto_one(client_p, ":%s!%s@%s MODE %s :%s",
1011 source_p->name, source_p->username,
1012 source_p->host, source_p->name, umode_buf);
1013 }
1014
1015 /* send_umode_out()
1016 *
1017 * inputs -
1018 * output - NONE
1019 * side effects - Only send ubuf out to servers that know about this client
1020 */
1021 void
1022 send_umode_out(struct Client *client_p, struct Client *source_p,
1023 unsigned int old)
1024 {
1025 char buf[IRCD_BUFSIZE] = { '\0' };
1026 dlink_node *ptr = NULL;
1027
1028 send_umode(NULL, source_p, old, SEND_UMODES, buf);
1029
1030 if (buf[0])
1031 {
1032 DLINK_FOREACH(ptr, serv_list.head)
1033 {
1034 struct Client *target_p = ptr->data;
1035
1036 if ((target_p != client_p) && (target_p != source_p))
1037 sendto_one(target_p, ":%s MODE %s :%s",
1038 ID_or_name(source_p, target_p),
1039 ID_or_name(source_p, target_p), buf);
1040 }
1041 }
1042
1043 if (client_p && MyClient(client_p))
1044 send_umode(client_p, source_p, old, 0xffffffff, buf);
1045 }
1046
1047 void
1048 user_set_hostmask(struct Client *target_p, const char *hostname, const int what)
1049 {
1050 dlink_node *ptr = NULL;
1051
1052 if (!strcmp(target_p->host, hostname))
1053 return;
1054
1055 switch (what)
1056 {
1057 case MODE_ADD:
1058 AddUMode(target_p, UMODE_HIDDENHOST);
1059 AddFlag(target_p, FLAGS_IP_SPOOFING);
1060 break;
1061 case MODE_DEL:
1062 DelUMode(target_p, UMODE_HIDDENHOST);
1063
1064 if (!HasFlag(target_p, FLAGS_AUTH_SPOOF))
1065 DelFlag(target_p, FLAGS_IP_SPOOFING);
1066 break;
1067 default: return;
1068 }
1069
1070 if (ConfigFileEntry.cycle_on_host_change)
1071 sendto_common_channels_local(target_p, 0, 0, ":%s!%s@%s QUIT :Changing hostname",
1072 target_p->name, target_p->username, target_p->host);
1073
1074 if (IsUserHostIp(target_p))
1075 delete_user_host(target_p->username, target_p->host, !MyConnect(target_p));
1076
1077 strlcpy(target_p->host, hostname, sizeof(target_p->host));
1078
1079 add_user_host(target_p->username, target_p->host, !MyConnect(target_p));
1080 SetUserHost(target_p);
1081
1082 if (MyClient(target_p))
1083 {
1084 sendto_one(target_p, form_str(RPL_NEWHOSTIS), me.name,
1085 target_p->name, target_p->host);
1086 clear_ban_cache_client(target_p);
1087 }
1088
1089 if (!ConfigFileEntry.cycle_on_host_change)
1090 return;
1091
1092 DLINK_FOREACH(ptr, target_p->channel.head)
1093 {
1094 char modebuf[4], nickbuf[NICKLEN * 3 + 3] = { '\0' };
1095 char *p = modebuf;
1096 int len = 0;
1097 const struct Membership *ms = ptr->data;
1098
1099 if (has_member_flags(ms, CHFL_CHANOP))
1100 {
1101 *p++ = 'o';
1102 len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
1103 }
1104
1105 if (has_member_flags(ms, CHFL_HALFOP))
1106 {
1107 *p++ = 'h';
1108 len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
1109 }
1110
1111 if (has_member_flags(ms, CHFL_VOICE))
1112 {
1113 *p++ = 'v';
1114 len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
1115 }
1116
1117 *p = '\0';
1118
1119 sendto_channel_local_butone(target_p, 0, 0, ms->chptr, ":%s!%s@%s JOIN :%s",
1120 target_p->name, target_p->username, target_p->host,
1121 ms->chptr->chname);
1122 if (nickbuf[0])
1123 sendto_channel_local_butone(target_p, 0, 0, ms->chptr, ":%s MODE %s +%s %s",
1124 target_p->servptr->name, ms->chptr->chname,
1125 modebuf, nickbuf);
1126
1127 }
1128
1129 if (target_p->away[0])
1130 sendto_common_channels_local(target_p, 0, CAP_AWAY_NOTIFY,
1131 ":%s!%s@%s AWAY :%s",
1132 target_p->name, target_p->username,
1133 target_p->host, target_p->away);
1134 }
1135
1136 /* user_welcome()
1137 *
1138 * inputs - client pointer to client to welcome
1139 * output - NONE
1140 * side effects -
1141 */
1142 static void
1143 user_welcome(struct Client *source_p)
1144 {
1145 #if defined(__TIME__) && defined(__DATE__)
1146 static const char built_date[] = __DATE__ " at " __TIME__;
1147 #else
1148 static const char built_date[] = "unknown";
1149 #endif
1150
1151 #ifdef HAVE_LIBCRYPTO
1152 if (HasFlag(source_p, FLAGS_SSL))
1153 {
1154 AddUMode(source_p, UMODE_SSL);
1155 sendto_one(source_p, ":%s NOTICE %s :*** Connected securely via %s",
1156 me.name, source_p->name,
1157 ssl_get_cipher(source_p->localClient->fd.ssl));
1158 }
1159 #endif
1160
1161 sendto_one(source_p, form_str(RPL_WELCOME), me.name, source_p->name,
1162 ServerInfo.network_name, source_p->name);
1163 sendto_one(source_p, form_str(RPL_YOURHOST), me.name, source_p->name,
1164 get_listener_name(source_p->localClient->listener), ircd_version);
1165 sendto_one(source_p, form_str(RPL_CREATED),
1166 me.name, source_p->name, built_date);
1167 sendto_one(source_p, form_str(RPL_MYINFO),
1168 me.name, source_p->name, me.name, ircd_version, umode_buffer);
1169 show_isupport(source_p);
1170
1171 if (source_p->id[0] != '\0')
1172 sendto_one(source_p, form_str(RPL_YOURID), me.name,
1173 source_p->name, source_p->id);
1174
1175 show_lusers(source_p);
1176 motd_signon(source_p);
1177 }
1178
1179 /* check_xline()
1180 *
1181 * inputs - pointer to client to test
1182 * outupt - 1 if exiting 0 if ok
1183 * side effects -
1184 */
1185 static int
1186 check_xline(struct Client *source_p)
1187 {
1188 struct MaskItem *conf = NULL;
1189 const char *reason = NULL;
1190
1191 if ((conf = find_matching_name_conf(CONF_XLINE, source_p->info, NULL, NULL, 0)))
1192 {
1193 ++conf->count;
1194
1195 if (conf->reason != NULL)
1196 reason = conf->reason;
1197 else
1198 reason = "No Reason";
1199
1200 sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
1201 "X-line Rejecting [%s] [%s], user %s [%s]",
1202 source_p->info, reason,
1203 get_client_name(source_p, HIDE_IP),
1204 source_p->sockhost);
1205
1206 ++ServerStats.is_ref;
1207 exit_client(source_p, &me, "Bad user info");
1208 return 1;
1209 }
1210
1211 return 0;
1212 }
1213
1214 /* oper_up()
1215 *
1216 * inputs - pointer to given client to oper
1217 * output - NONE
1218 * side effects - Blindly opers up given source_p, using conf info
1219 * all checks on passwords have already been done.
1220 * This could also be used by rsa oper routines.
1221 */
1222 void
1223 oper_up(struct Client *source_p)
1224 {
1225 const unsigned int old = source_p->umodes;
1226 const struct MaskItem *conf = source_p->localClient->confs.head->data;
1227
1228 assert(source_p->localClient->confs.head);
1229
1230 ++Count.oper;
1231 SetOper(source_p);
1232
1233 if (conf->modes)
1234 AddUMode(source_p, conf->modes);
1235 else if (ConfigFileEntry.oper_umodes)
1236 AddUMode(source_p, ConfigFileEntry.oper_umodes);
1237
1238 if (!(old & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
1239 ++Count.invisi;
1240 if ((old & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
1241 --Count.invisi;
1242
1243 assert(dlinkFind(&oper_list, source_p) == NULL);
1244 dlinkAdd(source_p, make_dlink_node(), &oper_list);
1245
1246 AddOFlag(source_p, conf->port);
1247
1248 if (HasOFlag(source_p, OPER_FLAG_ADMIN))
1249 AddUMode(source_p, UMODE_ADMIN);
1250
1251 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s is now an operator",
1252 get_oper_name(source_p));
1253 send_umode_out(source_p, source_p, old);
1254 sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
1255 }
1256
1257 static char new_uid[TOTALSIDUID + 1]; /* allow for \0 */
1258
1259 int
1260 valid_sid(const char *sid)
1261 {
1262 if (strlen(sid) == IRC_MAXSID)
1263 if (IsDigit(*sid))
1264 if (IsAlNum(*(sid + 1)) && IsAlNum(*(sid + 2)))
1265 return 1;
1266
1267 return 0;
1268 }
1269
1270 /*
1271 * init_uid()
1272 *
1273 * inputs - NONE
1274 * output - NONE
1275 * side effects - new_uid is filled in with server id portion (sid)
1276 * (first 3 bytes) or defaulted to 'A'.
1277 * Rest is filled in with 'A'
1278 */
1279 void
1280 init_uid(void)
1281 {
1282 unsigned int i;
1283
1284 memset(new_uid, 0, sizeof(new_uid));
1285
1286 if (!EmptyString(ServerInfo.sid))
1287 strlcpy(new_uid, ServerInfo.sid, sizeof(new_uid));
1288
1289 for (i = 0; i < IRC_MAXSID; ++i)
1290 if (new_uid[i] == '\0')
1291 new_uid[i] = 'A';
1292
1293 /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1294 memcpy(new_uid + IRC_MAXSID, "AAAAA@", IRC_MAXUID);
1295 }
1296
1297 /*
1298 * add_one_to_uid
1299 *
1300 * inputs - index number into new_uid
1301 * output - NONE
1302 * side effects - new_uid is incremented by one
1303 * note this is a recursive function
1304 */
1305 static void
1306 add_one_to_uid(int i)
1307 {
1308 if (i != IRC_MAXSID) /* Not reached server SID portion yet? */
1309 {
1310 if (new_uid[i] == 'Z')
1311 new_uid[i] = '0';
1312 else if (new_uid[i] == '9')
1313 {
1314 new_uid[i] = 'A';
1315 add_one_to_uid(i-1);
1316 }
1317 else
1318 ++new_uid[i];
1319 }
1320 else
1321 {
1322 /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1323 if (new_uid[i] == 'Z')
1324 memcpy(new_uid + IRC_MAXSID, "AAAAAA", IRC_MAXUID);
1325 else
1326 ++new_uid[i];
1327 }
1328 }
1329
1330 /*
1331 * uid_get
1332 *
1333 * inputs - struct Client *
1334 * output - new UID is returned to caller
1335 * side effects - new_uid is incremented by one.
1336 */
1337 static const char *
1338 uid_get(void)
1339 {
1340 add_one_to_uid(TOTALSIDUID - 1); /* index from 0 */
1341 return new_uid;
1342 }
1343
1344 /*
1345 * init_isupport()
1346 *
1347 * input - NONE
1348 * output - NONE
1349 * side effects - Must be called before isupport is enabled
1350 */
1351 void
1352 init_isupport(void)
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 #ifdef HALFOPS
1360 add_isupport("PREFIX", "(ohv)@%+", -1);
1361 add_isupport("STATUSMSG", "@%+", -1);
1362 #else
1363 add_isupport("PREFIX", "(ov)@+", -1);
1364 add_isupport("STATUSMSG", "@+", -1);
1365 #endif
1366 add_isupport("EXCEPTS", "e", -1);
1367 add_isupport("INVEX", "I", -1);
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 support->name = xstrdup(name);
1403 if (options != NULL)
1404 support->options = xstrdup(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, *ptr_next = 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 DLINK_FOREACH_SAFE(ptr, ptr_next, support_list_lines.head)
1458 {
1459 dlinkDelete(ptr, &support_list_lines);
1460 MyFree(ptr->data);
1461 free_dlink_node(ptr);
1462 }
1463
1464 DLINK_FOREACH(ptr, support_list.head)
1465 {
1466 struct Isupport *support = ptr->data;
1467
1468 p += (n = sprintf(p, "%s", support->name));
1469 len += n;
1470
1471 if (support->options != NULL)
1472 {
1473 p += (n = sprintf(p, "=%s", support->options));
1474 len += n;
1475 }
1476
1477 if (support->number > 0)
1478 {
1479 p += (n = sprintf(p, "=%d", support->number));
1480 len += n;
1481 }
1482
1483 *p++ = ' ';
1484 len++;
1485 *p = '\0';
1486
1487 if (++tokens == (MAXPARA-2) || len >= (sizeof(isupportbuffer)-reserve))
1488 { /* arbritrary for now */
1489 if (*--p == ' ')
1490 *p = '\0';
1491
1492 dlinkAddTail(xstrdup(isupportbuffer), make_dlink_node(), &support_list_lines);
1493 p = isupportbuffer;
1494 len = 0;
1495 n = tokens = 0;
1496 }
1497 }
1498
1499 if (len != 0)
1500 {
1501 if (*--p == ' ')
1502 *p = '\0';
1503 dlinkAddTail(xstrdup(isupportbuffer), make_dlink_node(), &support_list_lines);
1504 }
1505 }

Properties

Name Value
svn:eol-style native
svn:keywords Id Revision