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[irc/rqf/shadowircd.git] / src / s_user.c
1 /*
2 * ircd-ratbox: A slightly useful ircd.
3 * s_user.c: User related functions.
4 *
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22 * USA
23 *
24 * $Id: s_user.c 3586 2007-11-20 11:16:43Z nenolod $
25 */
26
27 #include "stdinc.h"
28 #include "s_user.h"
29 #include "channel.h"
30 #include "class.h"
31 #include "client.h"
32 #include "common.h"
33 #include "hash.h"
34 #include "match.h"
35 #include "ircd.h"
36 #include "listener.h"
37 #include "msg.h"
38 #include "numeric.h"
39 #include "s_conf.h"
40 #include "s_newconf.h"
41 #include "logger.h"
42 #include "s_serv.h"
43 #include "s_stats.h"
44 #include "scache.h"
45 #include "send.h"
46 #include "supported.h"
47 #include "whowas.h"
48 #include "packet.h"
49 #include "reject.h"
50 #include "cache.h"
51 #include "hook.h"
52 #include "monitor.h"
53 #include "snomask.h"
54 #include "blacklist.h"
55 #include "substitution.h"
56 #include "chmode.h"
57
58 static void report_and_set_user_flags(struct Client *, struct ConfItem *);
59 void user_welcome(struct Client *source_p);
60
61 char umodebuf[128];
62
63 static int orphaned_umodes = 0;
64 int user_modes[256] = {
65 /* 0x00 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x0F */
66 /* 0x10 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x1F */
67 /* 0x20 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x2F */
68 /* 0x30 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x3F */
69 0, /* @ */
70 0, /* A */
71 0, /* B */
72 0, /* C */
73 UMODE_DEAF, /* D */
74 0, /* E */
75 0, /* F */
76 0, /* G */
77 0, /* H */
78 0, /* I */
79 0, /* J */
80 0, /* K */
81 0, /* L */
82 0, /* M */
83 0, /* N */
84 0, /* O */
85 0, /* P */
86 UMODE_NOFORWARD, /* Q */
87 UMODE_REGONLYMSG, /* R */
88 UMODE_SERVICE, /* S */
89 0, /* T */
90 0, /* U */
91 0, /* V */
92 0, /* W */
93 0, /* X */
94 0, /* Y */
95 UMODE_SSLCLIENT, /* Z */
96 /* 0x5B */ 0, 0, 0, 0, 0, 0, /* 0x60 */
97 UMODE_ADMIN, /* a */
98 0, /* b */
99 0, /* c */
100 0, /* d */
101 0, /* e */
102 0, /* f */
103 UMODE_CALLERID, /* g */
104 0, /* h */
105 UMODE_INVISIBLE, /* i */
106 0, /* j */
107 0, /* k */
108 UMODE_LOCOPS, /* l */
109 0, /* m */
110 0, /* n */
111 UMODE_OPER, /* o */
112 0, /* p */
113 0, /* q */
114 0, /* r */
115 UMODE_SERVNOTICE, /* s */
116 0, /* t */
117 0, /* u */
118 0, /* v */
119 UMODE_WALLOP, /* w */
120 0, /* x */
121 0, /* y */
122 UMODE_OPERWALL, /* z */
123 /* 0x7B */ 0, 0, 0, 0, 0, /* 0x7F */
124 /* 0x80 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x9F */
125 /* 0x90 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x9F */
126 /* 0xA0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xAF */
127 /* 0xB0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xBF */
128 /* 0xC0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xCF */
129 /* 0xD0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xDF */
130 /* 0xE0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xEF */
131 /* 0xF0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xFF */
132 };
133 /* *INDENT-ON* */
134
135 /*
136 * show_lusers -
137 *
138 * inputs - pointer to client
139 * output -
140 * side effects - display to client user counts etc.
141 */
142 int
143 show_lusers(struct Client *source_p)
144 {
145 if(rb_dlink_list_length(&lclient_list) > (unsigned long)MaxClientCount)
146 MaxClientCount = rb_dlink_list_length(&lclient_list);
147
148 if((rb_dlink_list_length(&lclient_list) + rb_dlink_list_length(&serv_list)) >
149 (unsigned long)MaxConnectionCount)
150 MaxConnectionCount = rb_dlink_list_length(&lclient_list) +
151 rb_dlink_list_length(&serv_list);
152
153 sendto_one_numeric(source_p, RPL_LUSERCLIENT, form_str(RPL_LUSERCLIENT),
154 (Count.total - Count.invisi),
155 Count.invisi, rb_dlink_list_length(&global_serv_list));
156
157 if(rb_dlink_list_length(&oper_list) > 0)
158 sendto_one_numeric(source_p, RPL_LUSEROP,
159 form_str(RPL_LUSEROP), rb_dlink_list_length(&oper_list));
160
161 if(rb_dlink_list_length(&unknown_list) > 0)
162 sendto_one_numeric(source_p, RPL_LUSERUNKNOWN,
163 form_str(RPL_LUSERUNKNOWN),
164 rb_dlink_list_length(&unknown_list));
165
166 if(rb_dlink_list_length(&global_channel_list) > 0)
167 sendto_one_numeric(source_p, RPL_LUSERCHANNELS,
168 form_str(RPL_LUSERCHANNELS),
169 rb_dlink_list_length(&global_channel_list));
170
171 sendto_one_numeric(source_p, RPL_LUSERME, form_str(RPL_LUSERME),
172 rb_dlink_list_length(&lclient_list),
173 rb_dlink_list_length(&serv_list));
174
175 sendto_one_numeric(source_p, RPL_LOCALUSERS,
176 form_str(RPL_LOCALUSERS),
177 rb_dlink_list_length(&lclient_list),
178 Count.max_loc,
179 rb_dlink_list_length(&lclient_list),
180 Count.max_loc);
181
182 sendto_one_numeric(source_p, RPL_GLOBALUSERS, form_str(RPL_GLOBALUSERS),
183 Count.total, Count.max_tot,
184 Count.total, Count.max_tot);
185
186 sendto_one_numeric(source_p, RPL_STATSCONN,
187 form_str(RPL_STATSCONN),
188 MaxConnectionCount, MaxClientCount,
189 Count.totalrestartcount);
190
191 return 0;
192 }
193
194 /*
195 ** register_local_user
196 ** This function is called when both NICK and USER messages
197 ** have been accepted for the client, in whatever order. Only
198 ** after this, is the USER message propagated.
199 **
200 ** NICK's must be propagated at once when received, although
201 ** it would be better to delay them too until full info is
202 ** available. Doing it is not so simple though, would have
203 ** to implement the following:
204 **
205 ** (actually it has been implemented already for a while) -orabidoo
206 **
207 ** 1) user telnets in and gives only "NICK foobar" and waits
208 ** 2) another user far away logs in normally with the nick
209 ** "foobar" (quite legal, as this server didn't propagate
210 ** it).
211 ** 3) now this server gets nick "foobar" from outside, but
212 ** has alread the same defined locally. Current server
213 ** would just issue "KILL foobar" to clean out dups. But,
214 ** this is not fair. It should actually request another
215 ** nick from local user or kill him/her...
216 */
217
218 int
219 register_local_user(struct Client *client_p, struct Client *source_p, const char *username)
220 {
221 struct ConfItem *aconf, *xconf;
222 struct User *user = source_p->user;
223 char tmpstr2[IRCD_BUFSIZE];
224 char ipaddr[HOSTIPLEN];
225 char myusername[USERLEN+1];
226 int status;
227
228 s_assert(NULL != source_p);
229 s_assert(MyConnect(source_p));
230 s_assert(source_p->username != username);
231
232 if(source_p == NULL)
233 return -1;
234
235 if(IsAnyDead(source_p))
236 return -1;
237
238 if(ConfigFileEntry.ping_cookie)
239 {
240 if(!(source_p->flags & FLAGS_PINGSENT) && source_p->localClient->random_ping == 0)
241 {
242 source_p->localClient->random_ping = (unsigned long) (rand() * rand()) << 1;
243 sendto_one(source_p, "PING :%08lX",
244 (unsigned long) source_p->localClient->random_ping);
245 source_p->flags |= FLAGS_PINGSENT;
246 return -1;
247 }
248 if(!(source_p->flags & FLAGS_PING_COOKIE))
249 {
250 return -1;
251 }
252 }
253
254 /* hasnt finished client cap negotiation */
255 if(source_p->flags & FLAGS_CLICAP)
256 return -1;
257
258 /* still has DNSbls to validate against */
259 if(rb_dlink_list_length(&source_p->preClient->dnsbl_queries) > 0)
260 return -1;
261
262 client_p->localClient->last = rb_current_time();
263 /* Straight up the maximum rate of flooding... */
264 source_p->localClient->allow_read = MAX_FLOOD_BURST;
265
266 /* XXX - fixme. we shouldnt have to build a users buffer twice.. */
267 if(!IsGotId(source_p) && (strchr(username, '[') != NULL))
268 {
269 const char *p;
270 int i = 0;
271
272 p = username;
273
274 while(*p && i < USERLEN)
275 {
276 if(*p != '[')
277 myusername[i++] = *p;
278 p++;
279 }
280
281 myusername[i] = '\0';
282 username = myusername;
283 }
284
285 if((status = check_client(client_p, source_p, username)) < 0)
286 return (CLIENT_EXITED);
287
288 /* Apply nick override */
289 if(*source_p->preClient->spoofnick)
290 {
291 char note[NICKLEN + 10];
292
293 del_from_client_hash(source_p->name, source_p);
294 rb_strlcpy(source_p->name, source_p->preClient->spoofnick, NICKLEN + 1);
295 add_to_client_hash(source_p->name, source_p);
296
297 rb_snprintf(note, NICKLEN + 10, "Nick: %s", source_p->name);
298 rb_note(source_p->localClient->F, note);
299 }
300
301 if(!valid_hostname(source_p->host))
302 {
303 sendto_one_notice(source_p, ":*** Notice -- You have an illegal character in your hostname");
304
305 rb_strlcpy(source_p->host, source_p->sockhost, sizeof(source_p->host));
306 }
307
308
309 aconf = source_p->localClient->att_conf;
310
311 if(aconf == NULL)
312 {
313 exit_client(client_p, source_p, &me, "*** Not Authorised");
314 return (CLIENT_EXITED);
315 }
316
317 if(!IsGotId(source_p))
318 {
319 const char *p;
320 int i = 0;
321
322 if(IsNeedIdentd(aconf))
323 {
324 ServerStats.is_ref++;
325 sendto_one_notice(source_p, ":*** Notice -- You need to install identd to use this server");
326 exit_client(client_p, source_p, &me, "Install identd");
327 return (CLIENT_EXITED);
328 }
329
330 /* dont replace username if its supposed to be spoofed --fl */
331 if(!IsConfDoSpoofIp(aconf) || !strchr(aconf->name, '@'))
332 {
333 p = username;
334
335 if(!IsNoTilde(aconf))
336 source_p->username[i++] = '~';
337
338 while (*p && i < USERLEN)
339 {
340 if(*p != '[')
341 source_p->username[i++] = *p;
342 p++;
343 }
344
345 source_p->username[i] = '\0';
346 }
347 }
348
349 if(IsNeedSasl(aconf) && !*user->suser)
350 {
351 ServerStats.is_ref++;
352 sendto_one_notice(source_p, ":*** Notice -- You need to identify via SASL to use this server");
353 exit_client(client_p, source_p, &me, "SASL access only");
354 return (CLIENT_EXITED);
355 }
356
357 /* password check */
358 if(!EmptyString(aconf->passwd))
359 {
360 const char *encr;
361
362 if(EmptyString(source_p->localClient->passwd))
363 encr = "";
364 else if(IsConfEncrypted(aconf))
365 encr = rb_crypt(source_p->localClient->passwd, aconf->passwd);
366 else
367 encr = source_p->localClient->passwd;
368
369 if(strcmp(encr, aconf->passwd))
370 {
371 ServerStats.is_ref++;
372 sendto_one(source_p, form_str(ERR_PASSWDMISMATCH), me.name, source_p->name);
373 exit_client(client_p, source_p, &me, "Bad Password");
374 return (CLIENT_EXITED);
375 }
376
377 /* clear password only if used now, otherwise send it
378 * to services -- jilles */
379 if(source_p->localClient->passwd)
380 {
381 memset(source_p->localClient->passwd, 0, strlen(source_p->localClient->passwd));
382 rb_free(source_p->localClient->passwd);
383 source_p->localClient->passwd = NULL;
384 }
385 }
386
387 /* report if user has &^>= etc. and set flags as needed in source_p */
388 report_and_set_user_flags(source_p, aconf);
389
390 /* Limit clients */
391 /*
392 * We want to be able to have servers and F-line clients
393 * connect, so save room for "buffer" connections.
394 * Smaller servers may want to decrease this, and it should
395 * probably be just a percentage of the MAXCLIENTS...
396 * -Taner
397 */
398 /* Except "F:" clients */
399 if(rb_dlink_list_length(&lclient_list) >=
400 (unsigned long)GlobalSetOptions.maxclients && !IsConfExemptLimits(aconf))
401 {
402 sendto_realops_snomask(SNO_FULL, L_ALL,
403 "Too many clients, rejecting %s[%s].", source_p->name, source_p->host);
404
405 ServerStats.is_ref++;
406 exit_client(client_p, source_p, &me, "Sorry, server is full - try later");
407 return (CLIENT_EXITED);
408 }
409
410 /* kline exemption extends to xline too */
411 if(!IsExemptKline(source_p) &&
412 (xconf = find_xline(source_p->info, 1)) != NULL)
413 {
414 ServerStats.is_ref++;
415 add_reject(source_p, xconf->name, NULL);
416 exit_client(client_p, source_p, &me, "Bad user info");
417 return CLIENT_EXITED;
418 }
419
420 /* dnsbl check */
421 if (source_p->preClient->dnsbl_listed != NULL)
422 {
423 if (IsExemptKline(source_p) || IsConfExemptDNSBL(aconf))
424 sendto_one_notice(source_p, ":*** Your IP address %s is listed in %s, but you are exempt",
425 source_p->sockhost, source_p->preClient->dnsbl_listed->host);
426 else
427 {
428 rb_dlink_list varlist = { NULL, NULL, 0 };
429
430 substitution_append_var(&varlist, "nick", source_p->name);
431 substitution_append_var(&varlist, "ip", source_p->sockhost);
432 substitution_append_var(&varlist, "host", source_p->host);
433 substitution_append_var(&varlist, "dnsbl-host", source_p->preClient->dnsbl_listed->host);
434 substitution_append_var(&varlist, "network-name", ServerInfo.network_name);
435
436 ServerStats.is_ref++;
437
438 sendto_one(source_p, form_str(ERR_YOUREBANNEDCREEP),
439 me.name, source_p->name,
440 substitution_parse(source_p->preClient->dnsbl_listed->reject_reason, &varlist));
441
442 substitution_free(&varlist);
443
444 sendto_one_notice(source_p, ":*** Your IP address %s is listed in %s",
445 source_p->sockhost, source_p->preClient->dnsbl_listed->host);
446 source_p->preClient->dnsbl_listed->hits++;
447 add_reject(source_p, NULL, NULL);
448 exit_client(client_p, source_p, &me, "*** Banned (DNS blacklist)");
449 return CLIENT_EXITED;
450 }
451 }
452
453 /* valid user name check */
454
455 if(!valid_username(source_p->username))
456 {
457 sendto_realops_snomask(SNO_REJ, L_ALL,
458 "Invalid username: %s (%s@%s)",
459 source_p->name, source_p->username, source_p->host);
460 ServerStats.is_ref++;
461 sendto_one_notice(source_p, ":*** Your username is invalid. Please make sure that your username contains "
462 "only alphanumeric characters.");
463 rb_sprintf(tmpstr2, "Invalid username [%s]", source_p->username);
464 exit_client(client_p, source_p, &me, tmpstr2);
465 return (CLIENT_EXITED);
466 }
467
468 /* end of valid user name check */
469
470 /* Store original hostname -- jilles */
471 rb_strlcpy(source_p->orighost, source_p->host, HOSTLEN + 1);
472
473 /* Spoof user@host */
474 if(*source_p->preClient->spoofuser)
475 rb_strlcpy(source_p->username, source_p->preClient->spoofuser, USERLEN + 1);
476 if(*source_p->preClient->spoofhost)
477 {
478 rb_strlcpy(source_p->host, source_p->preClient->spoofhost, HOSTLEN + 1);
479 if (irccmp(source_p->host, source_p->orighost))
480 SetDynSpoof(source_p);
481 }
482
483 source_p->umodes |= ConfigFileEntry.default_umodes & ~ConfigFileEntry.oper_only_umodes & ~orphaned_umodes;
484
485 call_hook(h_new_local_user, source_p);
486
487 /* If they have died in send_* or were thrown out by the
488 * new_local_user hook don't do anything. */
489 if(IsAnyDead(source_p))
490 return CLIENT_EXITED;
491
492 /* To avoid inconsistencies, do not abort the registration
493 * starting from this point -- jilles
494 */
495 rb_inet_ntop_sock((struct sockaddr *)&source_p->localClient->ip, ipaddr, sizeof(ipaddr));
496
497 sendto_realops_snomask(SNO_CCONN, L_ALL,
498 "Client connecting: %s (%s@%s) [%s] {%s} [%s]",
499 source_p->name, source_p->username, source_p->orighost,
500 show_ip(NULL, source_p) ? ipaddr : "255.255.255.255",
501 get_client_class(source_p), source_p->info);
502
503 sendto_realops_snomask(SNO_CCONNEXT, L_ALL,
504 "CLICONN %s %s %s %s %s %s 0 %s",
505 source_p->name, source_p->username, source_p->orighost,
506 show_ip(NULL, source_p) ? ipaddr : "255.255.255.255",
507 get_client_class(source_p),
508 /* mirc can sometimes send ips here */
509 show_ip(NULL, source_p) ? source_p->localClient->fullcaps : "<hidden> <hidden>",
510 source_p->info);
511
512 add_to_hostname_hash(source_p->orighost, source_p);
513
514 /* Allocate a UID if it was not previously allocated.
515 * If this already occured, it was probably during SASL auth...
516 */
517 if(!*source_p->id)
518 {
519 strcpy(source_p->id, generate_uid());
520 add_to_id_hash(source_p->id, source_p);
521 }
522
523 if (IsSSL(source_p))
524 source_p->umodes |= UMODE_SSLCLIENT;
525
526 if (source_p->umodes & UMODE_INVISIBLE)
527 Count.invisi++;
528
529 s_assert(!IsClient(source_p));
530 rb_dlinkMoveNode(&source_p->localClient->tnode, &unknown_list, &lclient_list);
531 SetClient(source_p);
532
533 source_p->servptr = &me;
534 rb_dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->users);
535
536 /* Increment our total user count here */
537 if(++Count.total > Count.max_tot)
538 Count.max_tot = Count.total;
539
540 source_p->localClient->allow_read = MAX_FLOOD_BURST;
541
542 Count.totalrestartcount++;
543
544 s_assert(source_p->localClient != NULL);
545
546 if(rb_dlink_list_length(&lclient_list) > (unsigned long)Count.max_loc)
547 {
548 Count.max_loc = rb_dlink_list_length(&lclient_list);
549 if(!(Count.max_loc % 10))
550 sendto_realops_snomask(SNO_GENERAL, L_ALL,
551 "New Max Local Clients: %d", Count.max_loc);
552 }
553
554 /* they get a reduced limit */
555 if(find_tgchange(source_p->sockhost))
556 USED_TARGETS(source_p) = 6;
557
558 monitor_signon(source_p);
559 user_welcome(source_p);
560
561 free_pre_client(source_p);
562
563 return (introduce_client(client_p, source_p, user, source_p->name, 1));
564 }
565
566 /*
567 * introduce_clients
568 *
569 * inputs -
570 * output -
571 * side effects - This common function introduces a client to the rest
572 * of the net, either from a local client connect or
573 * from a remote connect.
574 */
575 int
576 introduce_client(struct Client *client_p, struct Client *source_p, struct User *user, const char *nick, int use_euid)
577 {
578 static char ubuf[12];
579 struct Client *identifyservice_p;
580 char *p;
581 hook_data_umode_changed hdata;
582 hook_data_client hdata2;
583 char sockhost[HOSTLEN];
584
585 if(MyClient(source_p))
586 send_umode(source_p, source_p, 0, 0, ubuf);
587 else
588 send_umode(NULL, source_p, 0, 0, ubuf);
589
590 if(!*ubuf)
591 {
592 ubuf[0] = '+';
593 ubuf[1] = '\0';
594 }
595
596 s_assert(has_id(source_p));
597
598 if(source_p->sockhost[0] == ':')
599 {
600 sockhost[0] = '0';
601 sockhost[1] = '\0';
602 rb_strlcat(sockhost, source_p->sockhost, sizeof(sockhost));
603 } else
604 strcpy(sockhost, source_p->sockhost);
605
606 if (use_euid)
607 sendto_server(client_p, NULL, CAP_EUID | CAP_TS6, NOCAPS,
608 ":%s EUID %s %d %ld %s %s %s %s %s %s %s :%s",
609 source_p->servptr->id, nick,
610 source_p->hopcount + 1,
611 (long) source_p->tsinfo, ubuf,
612 source_p->username, source_p->host,
613 IsIPSpoof(source_p) ? "0" : sockhost,
614 source_p->id,
615 IsDynSpoof(source_p) ? source_p->orighost : "*",
616 EmptyString(source_p->user->suser) ? "*" : source_p->user->suser,
617 source_p->info);
618
619 sendto_server(client_p, NULL, CAP_TS6, use_euid ? CAP_EUID : NOCAPS,
620 ":%s UID %s %d %ld %s %s %s %s %s :%s",
621 source_p->servptr->id, nick,
622 source_p->hopcount + 1,
623 (long) source_p->tsinfo, ubuf,
624 source_p->username, source_p->host,
625 IsIPSpoof(source_p) ? "0" : sockhost,
626 source_p->id, source_p->info);
627
628 if (IsDynSpoof(source_p))
629 {
630 sendto_server(client_p, NULL, CAP_TS6, use_euid ? CAP_EUID : NOCAPS, ":%s ENCAP * REALHOST %s",
631 use_id(source_p), source_p->orighost);
632 }
633
634 if (!EmptyString(source_p->user->suser))
635 {
636 sendto_server(client_p, NULL, CAP_TS6, use_euid ? CAP_EUID : NOCAPS, ":%s ENCAP * LOGIN %s",
637 use_id(source_p), source_p->user->suser);
638 }
639
640 if(MyConnect(source_p) && source_p->localClient->passwd)
641 {
642 if (ConfigFileEntry.identifyservice[0] != '\0' &&
643 ConfigFileEntry.identifycommand[0] != '\0')
644 {
645 /* use user@server */
646 p = strchr(ConfigFileEntry.identifyservice, '@');
647 if (p != NULL)
648 identifyservice_p = find_named_client(p + 1);
649 else
650 identifyservice_p = NULL;
651 if (identifyservice_p != NULL)
652 sendto_one(identifyservice_p, ":%s PRIVMSG %s :%s %s",
653 get_id(source_p, identifyservice_p),
654 ConfigFileEntry.identifyservice,
655 ConfigFileEntry.identifycommand,
656 source_p->localClient->passwd);
657 }
658 memset(source_p->localClient->passwd, 0, strlen(source_p->localClient->passwd));
659 rb_free(source_p->localClient->passwd);
660 source_p->localClient->passwd = NULL;
661 }
662
663 /* let modules providing usermodes know that we've got a new user,
664 * why is this here? -- well, some modules need to be able to send out new
665 * information about a client, so this was the best place to do it
666 * --nenolod
667 */
668 hdata.client = source_p;
669 hdata.oldumodes = 0;
670 hdata.oldsnomask = 0;
671 call_hook(h_umode_changed, &hdata);
672
673 /* On the other hand, some modules need to know when a client is
674 * being introduced, period.
675 * --gxti
676 */
677 hdata2.client = client_p;
678 hdata2.target = source_p;
679 call_hook(h_introduce_client, &hdata2);
680
681 return 0;
682 }
683
684 /*
685 * valid_hostname - check hostname for validity
686 *
687 * Inputs - pointer to user
688 * Output - YES if valid, NO if not
689 * Side effects - NONE
690 *
691 * NOTE: this doesn't allow a hostname to begin with a dot and
692 * will not allow more dots than chars.
693 */
694 int
695 valid_hostname(const char *hostname)
696 {
697 const char *p = hostname;
698 int found_sep = 0;
699
700 s_assert(NULL != p);
701
702 if(hostname == NULL)
703 return NO;
704
705 if('.' == *p || ':' == *p)
706 return NO;
707
708 while (*p)
709 {
710 if(!IsHostChar(*p))
711 return NO;
712 if(*p == '.' || *p == ':')
713 found_sep++;
714 p++;
715 }
716
717 if(found_sep == 0)
718 return(NO);
719
720 return (YES);
721 }
722
723 /*
724 * valid_username - check username for validity
725 *
726 * Inputs - pointer to user
727 * Output - YES if valid, NO if not
728 * Side effects - NONE
729 *
730 * Absolutely always reject any '*' '!' '?' '@' in an user name
731 * reject any odd control characters names.
732 * Allow '.' in username to allow for "first.last"
733 * style of username
734 */
735 int
736 valid_username(const char *username)
737 {
738 int dots = 0;
739 const char *p = username;
740
741 s_assert(NULL != p);
742
743 if(username == NULL)
744 return NO;
745
746 if('~' == *p)
747 ++p;
748
749 /* reject usernames that don't start with an alphanum
750 * i.e. reject jokers who have '-@somehost' or '.@somehost'
751 * or "-hi-@somehost", "h-----@somehost" would still be accepted.
752 */
753 if(!IsAlNum(*p))
754 return NO;
755
756 while (*++p)
757 {
758 if((*p == '.') && ConfigFileEntry.dots_in_ident)
759 {
760 dots++;
761 if(dots > ConfigFileEntry.dots_in_ident)
762 return NO;
763 if(!IsUserChar(p[1]))
764 return NO;
765 }
766 else if(!IsUserChar(*p))
767 return NO;
768 }
769 return YES;
770 }
771
772 /* report_and_set_user_flags
773 *
774 * Inputs - pointer to source_p
775 * - pointer to aconf for this user
776 * Output - NONE
777 * Side effects -
778 * Report to user any special flags they are getting, and set them.
779 */
780
781 static void
782 report_and_set_user_flags(struct Client *source_p, struct ConfItem *aconf)
783 {
784 /* If this user is being spoofed, tell them so */
785 if(IsConfDoSpoofIp(aconf))
786 {
787 sendto_one_notice(source_p, ":*** Spoofing your IP. congrats.");
788 }
789
790 /* If this user is in the exception class, Set it "E lined" */
791 if(IsConfExemptKline(aconf))
792 {
793 SetExemptKline(source_p);
794 sendto_one_notice(source_p, ":*** You are exempt from K/X lines. congrats.");
795 }
796
797 if(IsConfExemptDNSBL(aconf))
798 /* kline exempt implies this, don't send both */
799 if(!IsConfExemptKline(aconf))
800 sendto_one_notice(source_p, ":*** You are exempt from DNS blacklists.");
801
802 /* If this user is exempt from user limits set it F lined" */
803 if(IsConfExemptLimits(aconf))
804 {
805 sendto_one_notice(source_p, ":*** You are exempt from user limits. congrats.");
806 }
807
808 if(IsConfExemptFlood(aconf))
809 {
810 SetExemptFlood(source_p);
811 sendto_one_notice(source_p, ":*** You are exempt from flood limits.");
812 }
813
814 if(IsConfExemptSpambot(aconf))
815 {
816 SetExemptSpambot(source_p);
817 sendto_one_notice(source_p, ":*** You are exempt from spambot checks.");
818 }
819
820 if(IsConfExemptJupe(aconf))
821 {
822 SetExemptJupe(source_p);
823 sendto_one_notice(source_p, ":*** You are exempt from juped channel warnings.");
824 }
825
826 if(IsConfExemptResv(aconf))
827 {
828 SetExemptResv(source_p);
829 sendto_one_notice(source_p, ":*** You are exempt from resvs.");
830 }
831
832 if(IsConfExemptShide(aconf))
833 {
834 SetExemptShide(source_p);
835 sendto_one_notice(source_p, ":*** You are exempt from serverhiding.");
836 }
837 }
838
839 /*
840 * user_mode - set get current users mode
841 *
842 * m_umode() added 15/10/91 By Darren Reed.
843 * parv[0] - sender
844 * parv[1] - username to change mode for
845 * parv[2] - modes to change
846 */
847 int
848 user_mode(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
849 {
850 int flag;
851 int i;
852 char *m;
853 const char *pm;
854 struct Client *target_p;
855 int what, setflags;
856 int badflag = NO; /* Only send one bad flag notice */
857 int showsnomask = NO;
858 unsigned int setsnomask;
859 char buf[BUFSIZE];
860 hook_data_umode_changed hdata;
861
862 what = MODE_ADD;
863
864 if(parc < 2)
865 {
866 sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), me.name, source_p->name, "MODE");
867 return 0;
868 }
869
870 if((target_p = MyClient(source_p) ? find_named_person(parv[1]) : find_person(parv[1])) == NULL)
871 {
872 if(MyConnect(source_p))
873 sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
874 form_str(ERR_NOSUCHCHANNEL), parv[1]);
875 return 0;
876 }
877
878 /* Dont know why these were commented out..
879 * put them back using new sendto() funcs
880 */
881
882 if(IsServer(source_p))
883 {
884 sendto_realops_snomask(SNO_GENERAL, L_ADMIN,
885 "*** Mode for User %s from %s", parv[1], source_p->name);
886 return 0;
887 }
888
889 if(source_p != target_p || target_p->from != source_p->from)
890 {
891 sendto_one(source_p, form_str(ERR_USERSDONTMATCH), me.name, source_p->name);
892 return 0;
893 }
894
895 if(parc < 3)
896 {
897 m = buf;
898 *m++ = '+';
899
900 for (i = 0; i < 128; i++) /* >= 127 is extended ascii */
901 if (source_p->umodes & user_modes[i])
902 *m++ = (char) i;
903
904 *m = '\0';
905 sendto_one_numeric(source_p, RPL_UMODEIS, form_str(RPL_UMODEIS), buf);
906
907 if (source_p->snomask != 0)
908 sendto_one_numeric(source_p, RPL_SNOMASK, form_str(RPL_SNOMASK),
909 construct_snobuf(source_p->snomask));
910
911 return 0;
912 }
913
914 /* find flags already set for user */
915 setflags = source_p->umodes;
916 setsnomask = source_p->snomask;
917
918 /*
919 * parse mode change string(s)
920 */
921 for (pm = parv[2]; *pm; pm++)
922 switch (*pm)
923 {
924 case '+':
925 what = MODE_ADD;
926 break;
927 case '-':
928 what = MODE_DEL;
929 break;
930
931 case 'o':
932 if(what == MODE_ADD)
933 {
934 if(IsServer(client_p) && !IsOper(source_p))
935 {
936 ++Count.oper;
937 SetOper(source_p);
938 rb_dlinkAddAlloc(source_p, &oper_list);
939 }
940 }
941 else
942 {
943 /* Only decrement the oper counts if an oper to begin with
944 * found by Pat Szuta, Perly , perly@xnet.com
945 */
946
947 if(!IsOper(source_p))
948 break;
949
950 ClearOper(source_p);
951
952 Count.oper--;
953
954 if(MyConnect(source_p))
955 {
956 source_p->umodes &= ~ConfigFileEntry.oper_only_umodes;
957 if (!(source_p->umodes & UMODE_SERVNOTICE) && source_p->snomask != 0)
958 {
959 source_p->snomask = 0;
960 showsnomask = YES;
961 }
962 source_p->flags2 &= ~OPER_FLAGS;
963
964 rb_free(source_p->localClient->opername);
965 source_p->localClient->opername = NULL;
966
967 rb_dlinkFindDestroy(source_p, &local_oper_list);
968 }
969
970 rb_dlinkFindDestroy(source_p, &oper_list);
971 }
972 break;
973
974 /* we may not get these,
975 * but they shouldnt be in default
976 */
977
978 /* can only be set on burst */
979 case 'S':
980 case 'Z':
981 case ' ':
982 case '\n':
983 case '\r':
984 case '\t':
985 break;
986
987 case 's':
988 if (MyConnect(source_p))
989 {
990 if(!IsOper(source_p)
991 && (ConfigFileEntry.oper_only_umodes & UMODE_SERVNOTICE))
992 {
993 if (what == MODE_ADD || source_p->umodes & UMODE_SERVNOTICE)
994 badflag = YES;
995 continue;
996 }
997 showsnomask = YES;
998 if(what == MODE_ADD)
999 {
1000 if (parc > 3)
1001 source_p->snomask = parse_snobuf_to_mask(source_p->snomask, parv[3]);
1002 else
1003 source_p->snomask |= SNO_GENERAL;
1004 }
1005 else
1006 source_p->snomask = 0;
1007 if (source_p->snomask != 0)
1008 source_p->umodes |= UMODE_SERVNOTICE;
1009 else
1010 source_p->umodes &= ~UMODE_SERVNOTICE;
1011 break;
1012 }
1013 /* FALLTHROUGH */
1014 default:
1015 if (MyConnect(source_p) && *pm == 'Q' && !ConfigChannel.use_forward) {
1016 badflag = YES;
1017 break;
1018 }
1019
1020 if((flag = user_modes[(unsigned char) *pm]))
1021 {
1022 if(MyConnect(source_p)
1023 && ((!IsOper(source_p)
1024 && (ConfigFileEntry.oper_only_umodes & flag))
1025 || (orphaned_umodes & flag)))
1026 {
1027 if (what == MODE_ADD || source_p->umodes & flag)
1028 badflag = YES;
1029 }
1030 else
1031 {
1032 if(what == MODE_ADD)
1033 source_p->umodes |= flag;
1034 else
1035 source_p->umodes &= ~flag;
1036 }
1037 }
1038 else
1039 {
1040 if(MyConnect(source_p))
1041 badflag = YES;
1042 }
1043 break;
1044 }
1045
1046 if(badflag)
1047 sendto_one(source_p, form_str(ERR_UMODEUNKNOWNFLAG), me.name, source_p->name);
1048
1049 if(MyClient(source_p) && (source_p->snomask & SNO_NCHANGE) && !IsOperN(source_p))
1050 {
1051 sendto_one_notice(source_p, ":*** You need oper and nick_changes flag for +s +n");
1052 source_p->snomask &= ~SNO_NCHANGE; /* only tcm's really need this */
1053 }
1054
1055 if(MyClient(source_p) && (source_p->umodes & UMODE_OPERWALL) && !IsOperOperwall(source_p))
1056 {
1057 sendto_one_notice(source_p, ":*** You need oper and operwall flag for +z");
1058 source_p->umodes &= ~UMODE_OPERWALL;
1059 }
1060
1061 if(MyConnect(source_p) && (source_p->umodes & UMODE_ADMIN) &&
1062 (!IsOperAdmin(source_p) || IsOperHiddenAdmin(source_p)))
1063 {
1064 sendto_one_notice(source_p, ":*** You need oper and admin flag for +a");
1065 source_p->umodes &= ~UMODE_ADMIN;
1066 }
1067
1068 /* let modules providing usermodes know that we've changed our usermode --nenolod */
1069 hdata.client = source_p;
1070 hdata.oldumodes = setflags;
1071 hdata.oldsnomask = setsnomask;
1072 call_hook(h_umode_changed, &hdata);
1073
1074 if(!(setflags & UMODE_INVISIBLE) && IsInvisible(source_p))
1075 ++Count.invisi;
1076 if((setflags & UMODE_INVISIBLE) && !IsInvisible(source_p))
1077 --Count.invisi;
1078 /*
1079 * compare new flags with old flags and send string which
1080 * will cause servers to update correctly.
1081 */
1082 send_umode_out(client_p, source_p, setflags);
1083 if (showsnomask && MyConnect(source_p))
1084 sendto_one_numeric(source_p, RPL_SNOMASK, form_str(RPL_SNOMASK),
1085 construct_snobuf(source_p->snomask));
1086
1087 return (0);
1088 }
1089
1090 /*
1091 * send the MODE string for user (user) to connection client_p
1092 * -avalon
1093 */
1094 void
1095 send_umode(struct Client *client_p, struct Client *source_p, int old, int sendmask, char *umode_buf)
1096 {
1097 int i;
1098 int flag;
1099 char *m;
1100 int what = 0;
1101
1102 /*
1103 * build a string in umode_buf to represent the change in the user's
1104 * mode between the new (source_p->flag) and 'old'.
1105 */
1106 m = umode_buf;
1107 *m = '\0';
1108
1109 for (i = 0; i < 128; i++)
1110 {
1111 flag = user_modes[i];
1112
1113 if((flag & old) && !(source_p->umodes & flag))
1114 {
1115 if(what == MODE_DEL)
1116 *m++ = (char) i;
1117 else
1118 {
1119 what = MODE_DEL;
1120 *m++ = '-';
1121 *m++ = (char) i;
1122 }
1123 }
1124 else if(!(flag & old) && (source_p->umodes & flag))
1125 {
1126 if(what == MODE_ADD)
1127 *m++ = (char) i;
1128 else
1129 {
1130 what = MODE_ADD;
1131 *m++ = '+';
1132 *m++ = (char) i;
1133 }
1134 }
1135 }
1136 *m = '\0';
1137
1138 if(*umode_buf && client_p)
1139 sendto_one(client_p, ":%s MODE %s :%s", source_p->name, source_p->name, umode_buf);
1140 }
1141
1142 /*
1143 * send_umode_out
1144 *
1145 * inputs -
1146 * output - NONE
1147 * side effects -
1148 */
1149 void
1150 send_umode_out(struct Client *client_p, struct Client *source_p, int old)
1151 {
1152 struct Client *target_p;
1153 char buf[BUFSIZE];
1154 rb_dlink_node *ptr;
1155
1156 send_umode(NULL, source_p, old, 0, buf);
1157
1158 RB_DLINK_FOREACH(ptr, serv_list.head)
1159 {
1160 target_p = ptr->data;
1161
1162 if((target_p != client_p) && (target_p != source_p) && (*buf))
1163 {
1164 sendto_one(target_p, ":%s MODE %s :%s",
1165 get_id(source_p, target_p),
1166 get_id(source_p, target_p), buf);
1167 }
1168 }
1169
1170 if(client_p && MyClient(client_p))
1171 send_umode(client_p, source_p, old, 0, buf);
1172 }
1173
1174 /*
1175 * user_welcome
1176 *
1177 * inputs - client pointer to client to welcome
1178 * output - NONE
1179 * side effects -
1180 */
1181 void
1182 user_welcome(struct Client *source_p)
1183 {
1184 sendto_one_numeric(source_p, RPL_WELCOME, form_str(RPL_WELCOME), ServerInfo.network_name, source_p->name);
1185 sendto_one_numeric(source_p, RPL_YOURHOST, form_str(RPL_YOURHOST),
1186 get_listener_name(source_p->localClient->listener), ircd_version);
1187 sendto_one_numeric(source_p, RPL_CREATED, form_str(RPL_CREATED), creation);
1188 sendto_one_numeric(source_p, RPL_MYINFO, form_str(RPL_MYINFO), me.name, ircd_version, umodebuf, cflagsmyinfo);
1189
1190 show_isupport(source_p);
1191
1192 show_lusers(source_p);
1193
1194 if(ConfigFileEntry.short_motd)
1195 {
1196 sendto_one_notice(source_p, ":*** Notice -- motd was last changed at %s", user_motd_changed);
1197 sendto_one_notice(source_p, ":*** Notice -- Please read the motd if you haven't read it");
1198
1199 sendto_one(source_p, form_str(RPL_MOTDSTART),
1200 me.name, source_p->name, me.name);
1201
1202 sendto_one(source_p, form_str(RPL_MOTD),
1203 me.name, source_p->name, "*** This is the short motd ***");
1204
1205 sendto_one(source_p, form_str(RPL_ENDOFMOTD), me.name, source_p->name);
1206 }
1207 else
1208 send_user_motd(source_p);
1209 }
1210
1211 /* oper_up()
1212 *
1213 * inputs - pointer to given client to oper
1214 * - pointer to ConfItem to use
1215 * output - none
1216 * side effects - opers up source_p using aconf for reference
1217 */
1218 int
1219 oper_up(struct Client *source_p, struct oper_conf *oper_p)
1220 {
1221 unsigned int old = source_p->umodes, oldsnomask = source_p->snomask;
1222 hook_data_umode_changed hdata;
1223
1224 SetOper(source_p);
1225
1226 if(oper_p->umodes)
1227 source_p->umodes |= oper_p->umodes;
1228 else if(ConfigFileEntry.oper_umodes)
1229 source_p->umodes |= ConfigFileEntry.oper_umodes;
1230 else
1231 source_p->umodes |= DEFAULT_OPER_UMODES;
1232
1233 if (oper_p->snomask)
1234 {
1235 source_p->snomask |= oper_p->snomask;
1236 source_p->umodes |= UMODE_SERVNOTICE;
1237 }
1238 else if (source_p->umodes & UMODE_SERVNOTICE)
1239 {
1240 /* Only apply these if +s is already set -- jilles */
1241 if (ConfigFileEntry.oper_snomask)
1242 source_p->snomask |= ConfigFileEntry.oper_snomask;
1243 else
1244 source_p->snomask |= DEFAULT_OPER_SNOMASK;
1245 }
1246
1247 Count.oper++;
1248
1249 SetExemptKline(source_p);
1250
1251 source_p->flags2 |= oper_p->flags;
1252 source_p->localClient->opername = rb_strdup(oper_p->name);
1253 source_p->localClient->privset = privilegeset_ref(oper_p->privset);
1254
1255 rb_dlinkAddAlloc(source_p, &local_oper_list);
1256 rb_dlinkAddAlloc(source_p, &oper_list);
1257
1258 if(IsOperAdmin(source_p) && !IsOperHiddenAdmin(source_p))
1259 source_p->umodes |= UMODE_ADMIN;
1260 if(!IsOperN(source_p))
1261 source_p->snomask &= ~SNO_NCHANGE;
1262 if(!IsOperOperwall(source_p))
1263 source_p->umodes &= ~UMODE_OPERWALL;
1264 hdata.client = source_p;
1265 hdata.oldumodes = old;
1266 hdata.oldsnomask = oldsnomask;
1267 call_hook(h_umode_changed, &hdata);
1268
1269 sendto_realops_snomask(SNO_GENERAL, L_ALL,
1270 "%s (%s@%s) is now an operator", source_p->name,
1271 source_p->username, source_p->host);
1272 if(!(old & UMODE_INVISIBLE) && IsInvisible(source_p))
1273 ++Count.invisi;
1274 if((old & UMODE_INVISIBLE) && !IsInvisible(source_p))
1275 --Count.invisi;
1276 send_umode_out(source_p, source_p, old);
1277 sendto_one_numeric(source_p, RPL_SNOMASK, form_str(RPL_SNOMASK),
1278 construct_snobuf(source_p->snomask));
1279 sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
1280 sendto_one_notice(source_p, ":*** Oper privilege set is %s", oper_p->privset->name);
1281 sendto_one_notice(source_p, ":*** Oper privs are %s", oper_p->privset->privs);
1282 send_oper_motd(source_p);
1283
1284 return (1);
1285 }
1286
1287 /*
1288 * find_umode_slot
1289 *
1290 * inputs - NONE
1291 * outputs - an available umode bitmask or
1292 * 0 if no umodes are available
1293 * side effects - NONE
1294 */
1295 unsigned int
1296 find_umode_slot(void)
1297 {
1298 unsigned int all_umodes = 0, my_umode = 0, i;
1299
1300 for (i = 0; i < 128; i++)
1301 all_umodes |= user_modes[i];
1302
1303 for (my_umode = 1; my_umode && (all_umodes & my_umode);
1304 my_umode <<= 1);
1305
1306 return my_umode;
1307 }
1308
1309 void
1310 construct_umodebuf(void)
1311 {
1312 int i;
1313 char *ptr = umodebuf;
1314 static int prev_user_modes[128];
1315
1316 *ptr = '\0';
1317
1318 for (i = 0; i < 128; i++)
1319 {
1320 if (prev_user_modes[i] != 0 && prev_user_modes[i] != user_modes[i])
1321 {
1322 if (user_modes[i] == 0)
1323 {
1324 orphaned_umodes |= prev_user_modes[i];
1325 sendto_realops_snomask(SNO_DEBUG, L_ALL, "Umode +%c is now orphaned", i);
1326 }
1327 else
1328 {
1329 orphaned_umodes &= ~prev_user_modes[i];
1330 sendto_realops_snomask(SNO_DEBUG, L_ALL, "Orphaned umode +%c is picked up by module", i);
1331 }
1332 user_modes[i] = prev_user_modes[i];
1333 }
1334 else
1335 prev_user_modes[i] = user_modes[i];
1336 if (user_modes[i])
1337 *ptr++ = (char) i;
1338 }
1339
1340 *ptr++ = '\0';
1341 }
1342
1343 void
1344 change_nick_user_host(struct Client *target_p, const char *nick, const char *user,
1345 const char *host, int newts, const char *format, ...)
1346 {
1347 rb_dlink_node *ptr;
1348 struct Channel *chptr;
1349 struct membership *mscptr;
1350 int changed = irccmp(target_p->name, nick);
1351 int changed_case = strcmp(target_p->name, nick);
1352 int do_qjm = irccmp(target_p->username, user) || irccmp(target_p->host, host);
1353 char mode[10], modeval[NICKLEN * 2 + 2], reason[256], *mptr;
1354 va_list ap;
1355
1356 modeval[0] = '\0';
1357
1358 if(changed)
1359 {
1360 target_p->tsinfo = newts;
1361 monitor_signoff(target_p);
1362 }
1363 invalidate_bancache_user(target_p);
1364
1365 if(do_qjm)
1366 {
1367 va_start(ap, format);
1368 vsnprintf(reason, 255, format, ap);
1369 va_end(ap);
1370
1371 sendto_common_channels_local_butone(target_p, ":%s!%s@%s QUIT :%s",
1372 target_p->name, target_p->username, target_p->host,
1373 reason);
1374
1375 RB_DLINK_FOREACH(ptr, target_p->user->channel.head)
1376 {
1377 mscptr = ptr->data;
1378 chptr = mscptr->chptr;
1379 mptr = mode;
1380
1381 if(is_chanop(mscptr))
1382 {
1383 *mptr++ = 'o';
1384 strcat(modeval, nick);
1385 strcat(modeval, " ");
1386 }
1387
1388 if(is_voiced(mscptr))
1389 {
1390 *mptr++ = 'v';
1391 strcat(modeval, nick);
1392 }
1393
1394 *mptr = '\0';
1395
1396 sendto_channel_local_butone(target_p, ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s",
1397 nick, user, host, chptr->chname);
1398 if(*mode)
1399 sendto_channel_local_butone(target_p, ALL_MEMBERS, chptr,
1400 ":%s MODE %s +%s %s",
1401 target_p->servptr->name,
1402 chptr->chname, mode, modeval);
1403
1404 *modeval = '\0';
1405 }
1406
1407 if(MyClient(target_p) && changed_case)
1408 sendto_one(target_p, ":%s!%s@%s NICK %s",
1409 target_p->name, target_p->username, target_p->host, nick);
1410 }
1411 else if(changed_case)
1412 {
1413 sendto_common_channels_local(target_p, ":%s!%s@%s NICK :%s",
1414 target_p->name, target_p->username,
1415 target_p->host, nick);
1416 }
1417
1418 rb_strlcpy(target_p->username, user, sizeof target_p->username);
1419 rb_strlcpy(target_p->host, host, sizeof target_p->host);
1420
1421 if (changed)
1422 add_history(target_p, 1);
1423
1424 del_from_client_hash(target_p->name, target_p);
1425 rb_strlcpy(target_p->name, nick, NICKLEN);
1426 add_to_client_hash(target_p->name, target_p);
1427
1428 if(changed)
1429 {
1430 monitor_signon(target_p);
1431 del_all_accepts(target_p);
1432 }
1433 }
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