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

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Revision 1644 - (show annotations)
Tue Nov 6 22:20:16 2012 UTC (7 years, 7 months ago) by michael
File MIME type: text/x-chdr
File size: 40547 byte(s)
- More config subsystem cleanups

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 "fdlist.h"
33 #include "hash.h"
34 #include "irc_string.h"
35 #include "sprintf_irc.h"
36 #include "s_bsd.h"
37 #include "ircd.h"
38 #include "listener.h"
39 #include "motd.h"
40 #include "numeric.h"
41 #include "conf.h"
42 #include "log.h"
43 #include "s_serv.h"
44 #include "send.h"
45 #include "supported.h"
46 #include "whowas.h"
47 #include "memory.h"
48 #include "packet.h"
49 #include "rng_mt.h"
50 #include "userhost.h"
51 #include "hook.h"
52 #include "s_misc.h"
53 #include "parse.h"
54 #include "watch.h"
55
56
57 struct Callback *entering_umode_cb = NULL;
58 struct Callback *umode_cb = NULL;
59
60 static char umode_buffer[IRCD_BUFSIZE];
61
62 static void user_welcome(struct Client *);
63 static void report_and_set_user_flags(struct Client *, const struct MaskItem *);
64 static int check_xline(struct Client *);
65 static void introduce_client(struct Client *);
66 static const char *uid_get(void);
67
68 /* Used for building up the isupport string,
69 * used with init_isupport, add_isupport, delete_isupport
70 */
71
72 struct Isupport
73 {
74 dlink_node node;
75 char *name;
76 char *options;
77 int number;
78 };
79
80 static dlink_list support_list = { NULL, NULL, 0 };
81 MessageFile *isupportFile;
82
83 /* memory is cheap. map 0-255 to equivalent mode */
84 unsigned int user_modes[256] =
85 {
86 /* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x0F */
87 /* 0x10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1F */
88 /* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2F */
89 /* 0x30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x3F */
90 0, /* @ */
91 0, /* A */
92 0, /* B */
93 UMODE_CCONN_FULL, /* C */
94 UMODE_DEAF, /* D */
95 0, /* E */
96 0, /* F */
97 UMODE_SOFTCALLERID, /* G */
98 UMODE_HIDDEN, /* H */
99 0, /* I */
100 0, /* J */
101 0, /* K */
102 0, /* L */
103 0, /* M */
104 0, /* N */
105 0, /* O */
106 0, /* P */
107 0, /* Q */
108 UMODE_REGONLY, /* R */
109 0, /* S */
110 0, /* T */
111 0, /* U */
112 0, /* V */
113 0, /* W */
114 0, /* X */
115 0, /* Y */
116 0, /* Z 0x5A */
117 0, 0, 0, 0, 0, /* 0x5F */
118 0, /* 0x60 */
119 UMODE_ADMIN, /* a */
120 UMODE_BOTS, /* b */
121 UMODE_CCONN, /* c */
122 UMODE_DEBUG, /* d */
123 0, /* e */
124 UMODE_FULL, /* f */
125 UMODE_CALLERID, /* g */
126 0, /* h */
127 UMODE_INVISIBLE, /* i */
128 UMODE_REJ, /* j */
129 UMODE_SKILL, /* k */
130 UMODE_LOCOPS, /* l */
131 0, /* m */
132 UMODE_NCHANGE, /* n */
133 UMODE_OPER, /* o */
134 0, /* p */
135 0, /* q */
136 UMODE_REGISTERED, /* r */
137 UMODE_SERVNOTICE, /* s */
138 0, /* t */
139 UMODE_UNAUTH, /* u */
140 0, /* v */
141 UMODE_WALLOP, /* w */
142 UMODE_EXTERNAL, /* x */
143 UMODE_SPY, /* y */
144 UMODE_OPERWALL, /* z 0x7A */
145 0,0,0,0,0, /* 0x7B - 0x7F */
146
147 /* 0x80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x8F */
148 /* 0x90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x9F */
149 /* 0xA0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xAF */
150 /* 0xB0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xBF */
151 /* 0xC0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xCF */
152 /* 0xD0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xDF */
153 /* 0xE0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xEF */
154 /* 0xF0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xFF */
155 };
156
157 void
158 assemble_umode_buffer(void)
159 {
160 unsigned int idx = 0;
161 char *umode_buffer_ptr = umode_buffer;
162
163 for (; idx < (sizeof(user_modes) / sizeof(user_modes[0])); ++idx)
164 if (user_modes[idx])
165 *umode_buffer_ptr++ = idx;
166
167 *umode_buffer_ptr = '\0';
168 }
169
170 /* show_lusers()
171 *
172 * inputs - pointer to client
173 * output - NONE
174 * side effects - display to client user counts etc.
175 */
176 void
177 show_lusers(struct Client *source_p)
178 {
179 const char *from, *to;
180
181 if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
182 {
183 from = me.id;
184 to = source_p->id;
185 }
186 else
187 {
188 from = me.name;
189 to = source_p->name;
190 }
191
192 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
193 sendto_one(source_p, form_str(RPL_LUSERCLIENT),
194 from, to, (Count.total-Count.invisi),
195 Count.invisi, dlink_list_length(&global_serv_list));
196 else
197 sendto_one(source_p, form_str(RPL_LUSERCLIENT), from, to,
198 (Count.total-Count.invisi), Count.invisi, 1);
199
200 if (Count.oper > 0)
201 sendto_one(source_p, form_str(RPL_LUSEROP),
202 from, to, Count.oper);
203
204 if (dlink_list_length(&unknown_list) > 0)
205 sendto_one(source_p, form_str(RPL_LUSERUNKNOWN),
206 from, to, dlink_list_length(&unknown_list));
207
208 if (dlink_list_length(&global_channel_list) > 0)
209 sendto_one(source_p, form_str(RPL_LUSERCHANNELS),
210 from, to, dlink_list_length(&global_channel_list));
211
212 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
213 {
214 sendto_one(source_p, form_str(RPL_LUSERME),
215 from, to, Count.local, Count.myserver);
216 sendto_one(source_p, form_str(RPL_LOCALUSERS),
217 from, to, Count.local, Count.max_loc,
218 Count.local, Count.max_loc);
219 }
220 else
221 {
222 sendto_one(source_p, form_str(RPL_LUSERME),
223 from, to, Count.total, 0);
224 sendto_one(source_p, form_str(RPL_LOCALUSERS),
225 from, to, Count.total, Count.max_tot,
226 Count.total, Count.max_tot);
227 }
228
229 sendto_one(source_p, form_str(RPL_GLOBALUSERS),
230 from, to, Count.total, Count.max_tot,
231 Count.total, Count.max_tot);
232
233 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
234 sendto_one(source_p, form_str(RPL_STATSCONN), from, to,
235 Count.max_loc_con, Count.max_loc_cli, Count.totalrestartcount);
236
237 if (Count.local > Count.max_loc_cli)
238 Count.max_loc_cli = Count.local;
239
240 if ((Count.local + Count.myserver) > Count.max_loc_con)
241 Count.max_loc_con = Count.local + Count.myserver;
242 }
243
244 /* show_isupport()
245 *
246 * inputs - pointer to client
247 * output - NONE
248 * side effects - display to client what we support (for them)
249 */
250 void
251 show_isupport(struct Client *source_p)
252 {
253 send_message_file(source_p, isupportFile);
254 }
255
256 /*
257 ** register_local_user
258 ** This function is called when both NICK and USER messages
259 ** have been accepted for the client, in whatever order. Only
260 ** after this, is the USER message propagated.
261 **
262 ** NICK's must be propagated at once when received, although
263 ** it would be better to delay them too until full info is
264 ** available. Doing it is not so simple though, would have
265 ** to implement the following:
266 **
267 ** (actually it has been implemented already for a while) -orabidoo
268 **
269 ** 1) user telnets in and gives only "NICK foobar" and waits
270 ** 2) another user far away logs in normally with the nick
271 ** "foobar" (quite legal, as this server didn't propagate
272 ** it).
273 ** 3) now this server gets nick "foobar" from outside, but
274 ** has alread the same defined locally. Current server
275 ** would just issue "KILL foobar" to clean out dups. But,
276 ** this is not fair. It should actually request another
277 ** nick from local user or kill him/her...
278 */
279 void
280 register_local_user(struct Client *source_p)
281 {
282 const char *id = NULL;
283 const struct MaskItem *conf = NULL;
284
285 assert(source_p != NULL);
286 assert(source_p == source_p->from);
287 assert(MyConnect(source_p));
288 assert(!source_p->localClient->registration);
289
290 ClearCap(source_p, CAP_TS6);
291
292 if (ConfigFileEntry.ping_cookie)
293 {
294 if (!IsPingSent(source_p) && source_p->localClient->random_ping == 0)
295 {
296 do
297 source_p->localClient->random_ping = genrand_int32();
298 while (!source_p->localClient->random_ping);
299
300 sendto_one(source_p, "PING :%u",
301 source_p->localClient->random_ping);
302 SetPingSent(source_p);
303 return;
304 }
305
306 if (!HasPingCookie(source_p))
307 return;
308 }
309
310 source_p->localClient->last_privmsg = CurrentTime;
311 /* Straight up the maximum rate of flooding... */
312 source_p->localClient->allow_read = MAX_FLOOD_BURST;
313
314 if (!check_client(source_p))
315 return;
316
317 if (valid_hostname(source_p->host) == 0)
318 {
319 sendto_one(source_p, ":%s NOTICE %s :*** Notice -- You have an illegal "
320 "character in your hostname", me.name, source_p->name);
321 strlcpy(source_p->host, source_p->sockhost,
322 sizeof(source_p->host));
323 }
324
325 conf = source_p->localClient->confs.head->data;
326
327 if (!IsGotId(source_p))
328 {
329 char username[USERLEN + 1];
330 const char *p = username;
331 unsigned int i = 0;
332
333 if (IsNeedIdentd(conf))
334 {
335 ++ServerStats.is_ref;
336 sendto_one(source_p, ":%s NOTICE %s :*** Notice -- You need to install "
337 "identd to use this server", me.name, source_p->name);
338 exit_client(source_p, &me, "Install identd");
339 return;
340 }
341
342 strlcpy(username, source_p->username, sizeof(username));
343
344 if (!IsNoTilde(conf))
345 source_p->username[i++] = '~';
346
347 for (; *p && i < USERLEN; ++p)
348 if (*p != '[')
349 source_p->username[i++] = *p;
350
351 source_p->username[i] = '\0';
352 }
353
354 /* password check */
355 if (!EmptyString(conf->passwd))
356 {
357 const char *pass = source_p->localClient->passwd;
358
359 if (!match_conf_password(pass, conf))
360 {
361 ++ServerStats.is_ref;
362 sendto_one(source_p, form_str(ERR_PASSWDMISMATCH),
363 me.name, source_p->name);
364 exit_client(source_p, &me, "Bad Password");
365 return;
366 }
367 }
368
369 /* don't free source_p->localClient->passwd here - it can be required
370 * by masked /stats I if there are auth{} blocks with need_password = no;
371 * --adx
372 */
373
374 /* report if user has &^>= etc. and set flags as needed in source_p */
375 report_and_set_user_flags(source_p, conf);
376
377 if (IsDead(source_p))
378 return;
379
380 /* Limit clients -
381 * We want to be able to have servers and F-line clients
382 * connect, so save room for "buffer" connections.
383 * Smaller servers may want to decrease this, and it should
384 * probably be just a percentage of the MAXCLIENTS...
385 * -Taner
386 */
387 /* Except "F:" clients */
388 if ((Count.local >= ServerInfo.max_clients + MAX_BUFFER) ||
389 (Count.local >= ServerInfo.max_clients && !IsExemptLimits(source_p)))
390 {
391 sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE,
392 "Too many clients, rejecting %s[%s].",
393 source_p->name, source_p->host);
394 ++ServerStats.is_ref;
395 exit_client(source_p, &me, "Sorry, server is full - try later");
396 return;
397 }
398
399 /* valid user name check */
400 if (valid_username(source_p->username) == 0)
401 {
402 char tmpstr2[IRCD_BUFSIZE];
403
404 sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
405 "Invalid username: %s (%s@%s)",
406 source_p->name, source_p->username, source_p->host);
407 ++ServerStats.is_ref;
408 snprintf(tmpstr2, sizeof(tmpstr2), "Invalid username [%s]",
409 source_p->username);
410 exit_client(source_p, &me, tmpstr2);
411 return;
412 }
413
414 if (check_xline(source_p))
415 return;
416
417 while (hash_find_id((id = uid_get())) != NULL)
418 ;
419
420 strlcpy(source_p->id, id, sizeof(source_p->id));
421 hash_add_id(source_p);
422
423 sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE,
424 "Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>",
425 source_p->name, source_p->username, source_p->host,
426 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
427 "255.255.255.255" : source_p->sockhost,
428 get_client_class(&source_p->localClient->confs),
429 source_p->info, source_p->id);
430
431 sendto_realops_flags(UMODE_CCONN_FULL, L_ALL, SEND_NOTICE,
432 "CLICONN %s %s %s %s %s %s %s 0 %s",
433 source_p->name, source_p->username, source_p->host,
434 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
435 "255.255.255.255" : source_p->sockhost,
436 get_client_class(&source_p->localClient->confs),
437 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
438 "<hidden>" : source_p->localClient->client_host,
439 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
440 "<hidden>" : source_p->localClient->client_server,
441 source_p->info);
442
443
444 if (ConfigFileEntry.invisible_on_connect)
445 {
446 AddUMode(source_p, UMODE_INVISIBLE);
447 ++Count.invisi;
448 }
449
450 if ((++Count.local) > Count.max_loc)
451 {
452 Count.max_loc = Count.local;
453
454 if (!(Count.max_loc % 10))
455 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
456 "New Max Local Clients: %d",
457 Count.max_loc);
458 }
459
460 /* Increment our total user count here */
461 if (++Count.total > Count.max_tot)
462 Count.max_tot = Count.total;
463 ++Count.totalrestartcount;
464
465 assert(source_p->servptr == &me);
466 SetClient(source_p);
467 dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
468
469 source_p->localClient->allow_read = MAX_FLOOD_BURST;
470
471 assert(dlinkFind(&unknown_list, source_p));
472
473 dlink_move_node(&source_p->localClient->lclient_node,
474 &unknown_list, &local_client_list);
475
476 user_welcome(source_p);
477 add_user_host(source_p->username, source_p->host, 0);
478 SetUserHost(source_p);
479
480 introduce_client(source_p);
481 }
482
483 /* register_remote_user()
484 *
485 * inputs - source_p remote or directly connected client
486 * - username to register as
487 * - host name to register as
488 * - server name
489 * - realname (gecos)
490 * output - NONE
491 * side effects - This function is called when a remote client
492 * is introduced by a server.
493 */
494 void
495 register_remote_user(struct Client *source_p,
496 const char *username, const char *host, const char *server,
497 const char *realname)
498 {
499 struct Client *target_p = NULL;
500
501 assert(source_p != NULL);
502 assert(source_p->username != username);
503
504 strlcpy(source_p->host, host, sizeof(source_p->host));
505 strlcpy(source_p->username, username, sizeof(source_p->username));
506
507 /*
508 * coming from another server, take the servers word for it
509 */
510 source_p->servptr = hash_find_server(server);
511
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, SEND_NOTICE,
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, SEND_NOTICE,
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 %s :%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 source_p->svid,
609 source_p->info);
610 else
611 sendto_one(server, "NICK %s %d %lu %s %s %s %s %s :%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, source_p->svid,
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;
733 }
734
735 /* report_and_set_user_flags()
736 *
737 * inputs - pointer to source_p
738 * - pointer to conf 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 MaskItem *conf)
745 {
746 /* If this user is being spoofed, tell them so */
747 if (IsConfDoSpoofIp(conf))
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(conf))
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(conf))
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(conf))
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(conf))
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(conf))
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, SEND_NOTICE,
853 "*** Mode for User %s from %s",
854 parv[1], source_p->name);
855 return;
856 }
857
858 if (source_p != target_p)
859 {
860 sendto_one(source_p, form_str(ERR_USERSDONTMATCH),
861 me.name, source_p->name);
862 return;
863 }
864
865 if (parc < 3)
866 {
867 m = buf;
868 *m++ = '+';
869
870 for (i = 0; i < 128; i++)
871 if (HasUMode(source_p, user_modes[i]))
872 *m++ = (char)i;
873 *m = '\0';
874
875 sendto_one(source_p, form_str(RPL_UMODEIS),
876 me.name, source_p->name, buf);
877 return;
878 }
879
880 execute_callback(entering_umode_cb, client_p, source_p);
881
882 /* find flags already set for user */
883 setflags = source_p->umodes;
884
885 /* parse mode change string(s) */
886 for (p = &parv[2]; p && *p; p++)
887 {
888 for (m = *p; *m; m++)
889 {
890 switch (*m)
891 {
892 case '+':
893 what = MODE_ADD;
894 break;
895 case '-':
896 what = MODE_DEL;
897 break;
898 case 'o':
899 if (what == MODE_ADD)
900 {
901 if (IsServer(client_p) && !HasUMode(source_p, UMODE_OPER))
902 {
903 ++Count.oper;
904 SetOper(source_p);
905 }
906 }
907 else
908 {
909 /* Only decrement the oper counts if an oper to begin with
910 * found by Pat Szuta, Perly , perly@xnet.com
911 */
912 if (!HasUMode(source_p, UMODE_OPER))
913 break;
914
915 ClearOper(source_p);
916 Count.oper--;
917
918 if (MyConnect(source_p))
919 {
920 dlink_node *dm;
921
922 detach_conf(source_p, CONF_OPER);
923 ClrOFlag(source_p);
924 DelUMode(source_p, ConfigFileEntry.oper_only_umodes);
925
926 if ((dm = dlinkFindDelete(&oper_list, source_p)) != NULL)
927 free_dlink_node(dm);
928 }
929 }
930
931 break;
932
933 /* we may not get these,
934 * but they shouldnt be in default
935 */
936 case 'r':
937 case ' ' :
938 case '\n':
939 case '\r':
940 case '\t':
941 break;
942
943 default:
944 if ((flag = user_modes[(unsigned char)*m]))
945 {
946 if (MyConnect(source_p) && !HasUMode(source_p, UMODE_OPER) &&
947 (ConfigFileEntry.oper_only_umodes & flag))
948 {
949 badflag = 1;
950 }
951 else
952 execute_callback(umode_cb, client_p, source_p, what, flag);
953 }
954 else
955 {
956 if (MyConnect(source_p))
957 badflag = 1;
958 }
959
960 break;
961 }
962 }
963 }
964
965 if (badflag)
966 sendto_one(source_p, form_str(ERR_UMODEUNKNOWNFLAG),
967 me.name, source_p->name);
968
969 if (HasUMode(source_p, UMODE_NCHANGE) && !HasOFlag(source_p, OPER_FLAG_N))
970 {
971 sendto_one(source_p, ":%s NOTICE %s :*** You have no nchange flag;",
972 me.name, source_p->name);
973 DelUMode(source_p, UMODE_NCHANGE);
974 }
975
976 if (MyConnect(source_p) && HasUMode(source_p, UMODE_ADMIN) &&
977 !HasOFlag(source_p, OPER_FLAG_ADMIN))
978 {
979 sendto_one(source_p, ":%s NOTICE %s :*** You have no admin flag;",
980 me.name, source_p->name);
981 DelUMode(source_p, UMODE_ADMIN);
982 }
983
984 if (!(setflags & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
985 ++Count.invisi;
986 if ((setflags & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
987 --Count.invisi;
988
989 /*
990 * compare new flags with old flags and send string which
991 * will cause servers to update correctly.
992 */
993 send_umode_out(client_p, source_p, setflags);
994 }
995
996 /* send_umode()
997 * send the MODE string for user (user) to connection client_p
998 * -avalon
999 *
1000 * inputs - client_p
1001 * - source_p
1002 * - int old
1003 * - sendmask mask of modes to send
1004 * - suplied umode_buf
1005 * output - NONE
1006 */
1007 void
1008 send_umode(struct Client *client_p, struct Client *source_p,
1009 unsigned int old, unsigned int sendmask, char *umode_buf)
1010 {
1011 char *m = umode_buf;
1012 int what = 0;
1013 unsigned int i;
1014 unsigned int flag;
1015
1016 /*
1017 * build a string in umode_buf to represent the change in the user's
1018 * mode between the new (source_p->umodes) and 'old'.
1019 */
1020 for (i = 0; i < 128; i++)
1021 {
1022 flag = user_modes[i];
1023 if (!flag)
1024 continue;
1025
1026 if (MyClient(source_p) && !(flag & sendmask))
1027 continue;
1028
1029 if ((flag & old) && !HasUMode(source_p, flag))
1030 {
1031 if (what == MODE_DEL)
1032 *m++ = (char)i;
1033 else
1034 {
1035 what = MODE_DEL;
1036 *m++ = '-';
1037 *m++ = (char)i;
1038 }
1039 }
1040 else if (!(flag & old) && HasUMode(source_p, flag))
1041 {
1042 if (what == MODE_ADD)
1043 *m++ = (char)i;
1044 else
1045 {
1046 what = MODE_ADD;
1047 *m++ = '+';
1048 *m++ = (char)i;
1049 }
1050 }
1051 }
1052
1053 *m = '\0';
1054
1055 if (*umode_buf && client_p)
1056 sendto_one(client_p, ":%s!%s@%s MODE %s :%s",
1057 source_p->name, source_p->username,
1058 source_p->host, source_p->name, umode_buf);
1059 }
1060
1061 /* send_umode_out()
1062 *
1063 * inputs -
1064 * output - NONE
1065 * side effects - Only send ubuf out to servers that know about this client
1066 */
1067 void
1068 send_umode_out(struct Client *client_p, struct Client *source_p,
1069 unsigned int old)
1070 {
1071 char buf[IRCD_BUFSIZE] = { '\0' };
1072 dlink_node *ptr = NULL;
1073
1074 send_umode(NULL, source_p, old, 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 MaskItem *conf = NULL;
1160 const char *reason = NULL;
1161
1162 if ((conf = find_matching_name_conf(CONF_XLINE, source_p->info, NULL, NULL, 0)) ||
1163 (conf = find_matching_name_conf(CONF_RXLINE, source_p->info, NULL, NULL, 0)))
1164 {
1165 ++conf->count;
1166
1167 if (conf->reason != NULL)
1168 reason = conf->reason;
1169 else
1170 reason = "No Reason";
1171
1172 sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
1173 "X-line Rejecting [%s] [%s], user %s [%s]",
1174 source_p->info, reason,
1175 get_client_name(source_p, HIDE_IP),
1176 source_p->sockhost);
1177
1178 ++ServerStats.is_ref;
1179 exit_client(source_p, &me, "Bad user info");
1180 return 1;
1181 }
1182
1183 return 0;
1184 }
1185
1186 /* oper_up()
1187 *
1188 * inputs - pointer to given client to oper
1189 * output - NONE
1190 * side effects - Blindly opers up given source_p, using conf info
1191 * all checks on passwords have already been done.
1192 * This could also be used by rsa oper routines.
1193 */
1194 void
1195 oper_up(struct Client *source_p)
1196 {
1197 const unsigned int old = source_p->umodes;
1198 const struct MaskItem *conf = source_p->localClient->confs.head->data;
1199
1200 assert(source_p->localClient->confs.head);
1201
1202 ++Count.oper;
1203 SetOper(source_p);
1204
1205 if (conf->modes)
1206 AddUMode(source_p, conf->modes);
1207 else if (ConfigFileEntry.oper_umodes)
1208 AddUMode(source_p, ConfigFileEntry.oper_umodes);
1209
1210 if (!(old & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
1211 ++Count.invisi;
1212 if ((old & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
1213 --Count.invisi;
1214
1215 assert(dlinkFind(&oper_list, source_p) == NULL);
1216 dlinkAdd(source_p, make_dlink_node(), &oper_list);
1217
1218 AddOFlag(source_p, conf->port);
1219
1220 if (HasOFlag(source_p, OPER_FLAG_ADMIN))
1221 AddUMode(source_p, UMODE_ADMIN);
1222 if (!HasOFlag(source_p, OPER_FLAG_N))
1223 DelUMode(source_p, UMODE_NCHANGE);
1224
1225 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s is now an operator",
1226 get_oper_name(source_p));
1227 send_umode_out(source_p, source_p, old);
1228 sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
1229 }
1230
1231 static char new_uid[TOTALSIDUID + 1]; /* allow for \0 */
1232
1233 int
1234 valid_sid(const char *sid)
1235 {
1236 if (strlen(sid) == IRC_MAXSID)
1237 if (IsDigit(*sid))
1238 if (IsAlNum(*(sid + 1)) && IsAlNum(*(sid + 2)))
1239 return 1;
1240
1241 return 0;
1242 }
1243
1244 /*
1245 * init_uid()
1246 *
1247 * inputs - NONE
1248 * output - NONE
1249 * side effects - new_uid is filled in with server id portion (sid)
1250 * (first 3 bytes) or defaulted to 'A'.
1251 * Rest is filled in with 'A'
1252 */
1253 void
1254 init_uid(void)
1255 {
1256 int i;
1257
1258 memset(new_uid, 0, sizeof(new_uid));
1259
1260 if (!EmptyString(ServerInfo.sid))
1261 strlcpy(new_uid, ServerInfo.sid, sizeof(new_uid));
1262
1263 for (i = 0; i < IRC_MAXSID; ++i)
1264 if (new_uid[i] == '\0')
1265 new_uid[i] = 'A';
1266
1267 /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1268 /* Yes nenolod, I have known it was off by one ever since I wrote it
1269 * But *JUST* for you, though, it really doesn't look as *pretty*
1270 * -Dianora
1271 */
1272 memcpy(new_uid + IRC_MAXSID, "AAAAA@", IRC_MAXUID);
1273
1274 entering_umode_cb = register_callback("entering_umode", NULL);
1275 umode_cb = register_callback("changing_umode", change_simple_umode);
1276 }
1277
1278 /*
1279 * add_one_to_uid
1280 *
1281 * inputs - index number into new_uid
1282 * output - NONE
1283 * side effects - new_uid is incremented by one
1284 * note this is a recursive function
1285 */
1286 static void
1287 add_one_to_uid(int i)
1288 {
1289 if (i != IRC_MAXSID) /* Not reached server SID portion yet? */
1290 {
1291 if (new_uid[i] == 'Z')
1292 new_uid[i] = '0';
1293 else if (new_uid[i] == '9')
1294 {
1295 new_uid[i] = 'A';
1296 add_one_to_uid(i-1);
1297 }
1298 else
1299 ++new_uid[i];
1300 }
1301 else
1302 {
1303 /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1304 if (new_uid[i] == 'Z')
1305 memcpy(new_uid + IRC_MAXSID, "AAAAAA", IRC_MAXUID);
1306 else
1307 ++new_uid[i];
1308 }
1309 }
1310
1311 /*
1312 * uid_get
1313 *
1314 * inputs - struct Client *
1315 * output - new UID is returned to caller
1316 * side effects - new_uid is incremented by one.
1317 */
1318 static const char *
1319 uid_get(void)
1320 {
1321 add_one_to_uid(TOTALSIDUID - 1); /* index from 0 */
1322 return new_uid;
1323 }
1324
1325 /*
1326 * init_isupport()
1327 *
1328 * input - NONE
1329 * output - NONE
1330 * side effects - Must be called before isupport is enabled
1331 */
1332 void
1333 init_isupport(void)
1334 {
1335 isupportFile = init_MessageLine();
1336
1337 add_isupport("CALLERID", NULL, -1);
1338 add_isupport("CASEMAPPING", CASEMAP, -1);
1339 add_isupport("DEAF", "D", -1);
1340 add_isupport("KICKLEN", NULL, KICKLEN);
1341 add_isupport("MODES", NULL, MAXMODEPARAMS);
1342 add_isupport("NICKLEN", NULL, NICKLEN);
1343 #ifdef HALFOPS
1344 add_isupport("PREFIX", "(ohv)@%+", -1);
1345 add_isupport("STATUSMSG", "@%+", -1);
1346 #else
1347 add_isupport("PREFIX", "(ov)@+", -1);
1348 add_isupport("STATUSMSG", "@+", -1);
1349 #endif
1350 add_isupport("TOPICLEN", NULL, TOPICLEN);
1351 }
1352
1353 /*
1354 * add_isupport()
1355 *
1356 * input - name of supported function
1357 * - options if any
1358 * - number if any
1359 * output - NONE
1360 * side effects - Each supported item must call this when activated
1361 */
1362 void
1363 add_isupport(const char *name, const char *options, int n)
1364 {
1365 dlink_node *ptr;
1366 struct Isupport *support;
1367
1368 DLINK_FOREACH(ptr, support_list.head)
1369 {
1370 support = ptr->data;
1371 if (irccmp(support->name, name) == 0)
1372 {
1373 MyFree(support->name);
1374 MyFree(support->options);
1375 break;
1376 }
1377 }
1378
1379 if (ptr == NULL)
1380 {
1381 support = MyMalloc(sizeof(*support));
1382 dlinkAddTail(support, &support->node, &support_list);
1383 }
1384
1385 DupString(support->name, name);
1386 if (options != NULL)
1387 DupString(support->options, options);
1388 support->number = n;
1389
1390 rebuild_isupport_message_line();
1391 }
1392
1393 /*
1394 * delete_isupport()
1395 *
1396 * input - name of supported function
1397 * output - NONE
1398 * side effects - Each supported item must call this when deactivated
1399 */
1400 void
1401 delete_isupport(const char *name)
1402 {
1403 dlink_node *ptr;
1404 struct Isupport *support;
1405
1406 DLINK_FOREACH(ptr, support_list.head)
1407 {
1408 support = ptr->data;
1409 if (irccmp(support->name, name) == 0)
1410 {
1411 dlinkDelete(ptr, &support_list);
1412 MyFree(support->name);
1413 MyFree(support->options);
1414 MyFree(support);
1415 break;
1416 }
1417 }
1418
1419 rebuild_isupport_message_line();
1420 }
1421
1422 /*
1423 * rebuild_isupport_message_line
1424 *
1425 * input - NONE
1426 * output - NONE
1427 * side effects - Destroy the isupport MessageFile lines, and rebuild.
1428 */
1429 void
1430 rebuild_isupport_message_line(void)
1431 {
1432 char isupportbuffer[IRCD_BUFSIZE];
1433 char *p = isupportbuffer;
1434 dlink_node *ptr = NULL;
1435 int n = 0;
1436 int tokens = 0;
1437 size_t len = 0;
1438 size_t reserve = strlen(me.name) + HOSTLEN + strlen(form_str(RPL_ISUPPORT));
1439
1440 destroy_MessageLine(isupportFile);
1441
1442 DLINK_FOREACH(ptr, support_list.head)
1443 {
1444 struct Isupport *support = ptr->data;
1445
1446 p += (n = ircsprintf(p, "%s", support->name));
1447 len += n;
1448
1449 if (support->options != NULL)
1450 {
1451 p += (n = ircsprintf(p, "=%s", support->options));
1452 len += n;
1453 }
1454
1455 if (support->number > 0)
1456 {
1457 p += (n = ircsprintf(p, "=%d", support->number));
1458 len += n;
1459 }
1460
1461 *p++ = ' ';
1462 len++;
1463 *p = '\0';
1464
1465 if (++tokens == (MAXPARA-2) || len >= (sizeof(isupportbuffer)-reserve))
1466 { /* arbritrary for now */
1467 if (*--p == ' ')
1468 *p = '\0';
1469
1470 addto_MessageLine(isupportFile, isupportbuffer);
1471 p = isupportbuffer;
1472 len = 0;
1473 n = tokens = 0;
1474 }
1475 }
1476
1477 if (len != 0)
1478 {
1479 if (*--p == ' ')
1480 *p = '\0';
1481 addto_MessageLine(isupportFile, isupportbuffer);
1482 }
1483 }

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svn:eol-style native
svn:keywords Id Revision

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