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root/svn/ircd-hybrid/branches/8.2.x/src/user.c
Revision: 7600
Committed: Mon Jun 13 19:02:54 2016 UTC (10 years, 1 month ago) by michael
Content type: text/x-csrc
File size: 23362 byte(s)
Log Message:
- user.c:send_umode_out(): replace MyClient test with just MyConnect

File Contents

# User Rev Content
1 adx 30 /*
2 michael 2916 * ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3 adx 30 *
4 michael 7007 * Copyright (c) 1997-2016 ircd-hybrid development team
5 adx 30 *
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 michael 4564 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19 adx 30 * USA
20     */
21    
22 michael 5564 /*! \file user.c
23 michael 2916 * \brief User related functions.
24     * \version $Id$
25     */
26    
27 adx 30 #include "stdinc.h"
28 michael 1011 #include "list.h"
29 michael 3347 #include "user.h"
30 adx 30 #include "channel.h"
31     #include "channel_mode.h"
32     #include "client.h"
33     #include "hash.h"
34 michael 6160 #include "id.h"
35 adx 30 #include "irc_string.h"
36     #include "ircd.h"
37     #include "listener.h"
38     #include "motd.h"
39     #include "numeric.h"
40 michael 1309 #include "conf.h"
41 michael 7303 #include "conf_gecos.h"
42 michael 1309 #include "log.h"
43 michael 3347 #include "server.h"
44 adx 30 #include "send.h"
45     #include "memory.h"
46     #include "packet.h"
47 michael 982 #include "rng_mt.h"
48 adx 30 #include "userhost.h"
49 michael 3347 #include "misc.h"
50 michael 1243 #include "parse.h"
51 michael 876 #include "watch.h"
52 michael 6186 #include "isupport.h"
53 michael 7106 #include "tls.h"
54 adx 30
55     static char umode_buffer[IRCD_BUFSIZE];
56    
57 michael 5393 const struct user_modes *umode_map[256];
58     const struct user_modes umode_tab[] =
59 adx 30 {
60 michael 5393 { 'D', UMODE_DEAF },
61     { 'F', UMODE_FARCONNECT },
62     { 'G', UMODE_SOFTCALLERID },
63     { 'H', UMODE_HIDDEN },
64     { 'R', UMODE_REGONLY },
65     { 'S', UMODE_SSL },
66     { 'W', UMODE_WEBIRC },
67     { 'a', UMODE_ADMIN },
68     { 'b', UMODE_BOTS },
69     { 'c', UMODE_CCONN },
70     { 'd', UMODE_DEBUG },
71     { 'e', UMODE_EXTERNAL },
72     { 'f', UMODE_FULL },
73     { 'g', UMODE_CALLERID },
74     { 'i', UMODE_INVISIBLE },
75     { 'j', UMODE_REJ },
76     { 'k', UMODE_SKILL },
77     { 'l', UMODE_LOCOPS },
78     { 'n', UMODE_NCHANGE },
79     { 'o', UMODE_OPER },
80     { 'p', UMODE_HIDECHANS },
81     { 'q', UMODE_HIDEIDLE },
82     { 'r', UMODE_REGISTERED },
83     { 's', UMODE_SERVNOTICE },
84     { 'u', UMODE_UNAUTH },
85     { 'w', UMODE_WALLOP },
86     { 'x', UMODE_HIDDENHOST },
87     { 'y', UMODE_SPY },
88     { '\0', 0 }
89 adx 30 };
90    
91     void
92 michael 6190 user_modes_init(void)
93 adx 30 {
94     char *umode_buffer_ptr = umode_buffer;
95    
96 michael 5393 for (const struct user_modes *tab = umode_tab; tab->c; ++tab)
97     {
98     umode_map[tab->c] = tab;
99     *umode_buffer_ptr++ = tab->c;
100     }
101 adx 30
102     *umode_buffer_ptr = '\0';
103     }
104    
105     /* show_lusers()
106     *
107     * inputs - pointer to client
108     * output - NONE
109     * side effects - display to client user counts etc.
110     */
111     void
112 michael 2345 show_lusers(struct Client *source_p)
113 adx 30 {
114 michael 1219 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
115 michael 4723 sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, (Count.total - Count.invisi),
116 michael 4208 Count.invisi, dlink_list_length(&global_server_list));
117 adx 30 else
118 michael 4723 sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, (Count.total - Count.invisi),
119     Count.invisi, 1);
120 adx 30
121 michael 3375 if (Count.oper)
122 michael 3109 sendto_one_numeric(source_p, &me, RPL_LUSEROP, Count.oper);
123 adx 30
124 michael 3375 if (dlink_list_length(&unknown_list))
125 michael 3109 sendto_one_numeric(source_p, &me, RPL_LUSERUNKNOWN, dlink_list_length(&unknown_list));
126 adx 30
127 michael 3945 if (dlink_list_length(&channel_list))
128     sendto_one_numeric(source_p, &me, RPL_LUSERCHANNELS, dlink_list_length(&channel_list));
129 adx 30
130 michael 1219 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
131 adx 30 {
132 michael 3109 sendto_one_numeric(source_p, &me, RPL_LUSERME, Count.local, Count.myserver);
133     sendto_one_numeric(source_p, &me, RPL_LOCALUSERS, Count.local, Count.max_loc);
134 adx 30 }
135     else
136     {
137 michael 3109 sendto_one_numeric(source_p, &me, RPL_LUSERME, Count.total, 0);
138     sendto_one_numeric(source_p, &me, RPL_LOCALUSERS, Count.total, Count.max_tot);
139 adx 30 }
140    
141 michael 3109 sendto_one_numeric(source_p, &me, RPL_GLOBALUSERS, Count.total, Count.max_tot);
142 adx 30
143 michael 1219 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
144 michael 3109 sendto_one_numeric(source_p, &me, RPL_STATSCONN, Count.max_loc_con,
145     Count.max_loc_cli, Count.totalrestartcount);
146 adx 30
147 michael 1143 if (Count.local > Count.max_loc_cli)
148     Count.max_loc_cli = Count.local;
149 adx 30
150 michael 1143 if ((Count.local + Count.myserver) > Count.max_loc_con)
151 michael 2345 Count.max_loc_con = Count.local + Count.myserver;
152 adx 30 }
153    
154 michael 3272 /* report_and_set_user_flags()
155     *
156     * inputs - pointer to source_p
157     * - pointer to conf for this user
158     * output - NONE
159     * side effects - Report to user any special flags
160     * they are getting, and set them.
161     */
162     static void
163     report_and_set_user_flags(struct Client *source_p, const struct MaskItem *conf)
164     {
165     /* If this user is being spoofed, tell them so */
166     if (IsConfDoSpoofIp(conf))
167 michael 6812 sendto_one_notice(source_p, &me, ":*** Spoofing your IP");
168 michael 3272
169 michael 4855 /* If this user is in the exception class, set it "E lined" */
170 michael 3272 if (IsConfExemptKline(conf))
171     {
172 michael 6314 AddFlag(source_p, FLAGS_EXEMPTKLINE);
173 michael 6812 sendto_one_notice(source_p, &me, ":*** You are exempt from K/D lines");
174 michael 3272 }
175    
176 michael 5986 if (IsConfExemptXline(conf))
177     {
178 michael 6314 AddFlag(source_p, FLAGS_EXEMPTXLINE);
179 michael 6812 sendto_one_notice(source_p, &me, ":*** You are exempt from X lines");
180 michael 5986 }
181    
182 michael 3272 if (IsConfExemptResv(conf))
183     {
184 michael 6314 AddFlag(source_p, FLAGS_EXEMPTRESV);
185 michael 6812 sendto_one_notice(source_p, &me, ":*** You are exempt from resvs");
186 michael 3272 }
187    
188     /* If this user is exempt from user limits set it "F lined" */
189     if (IsConfExemptLimits(conf))
190     {
191 michael 6314 AddFlag(source_p, FLAGS_NOLIMIT);
192 michael 6812 sendto_one_notice(source_p, &me, ":*** You are exempt from user limits");
193 michael 3272 }
194    
195     if (IsConfCanFlood(conf))
196     {
197 michael 6314 AddFlag(source_p, FLAGS_CANFLOOD);
198 michael 6812 sendto_one_notice(source_p, &me, ":*** You are exempt from flood protection");
199 michael 3272 }
200     }
201    
202     /* introduce_client()
203     *
204     * inputs - source_p
205     * output - NONE
206     * side effects - This common function introduces a client to the rest
207     * of the net, either from a local client connect or
208     * from a remote connect.
209     */
210     static void
211     introduce_client(struct Client *source_p)
212     {
213 michael 4816 dlink_node *node = NULL;
214 michael 3272 char ubuf[IRCD_BUFSIZE] = "";
215    
216 michael 7598 send_umode(source_p, MyConnect(source_p), 0, ubuf);
217 michael 3272 watch_check_hash(source_p, RPL_LOGON);
218    
219     if (ubuf[0] == '\0')
220     {
221     ubuf[0] = '+';
222     ubuf[1] = '\0';
223     }
224    
225 michael 4816 DLINK_FOREACH(node, local_server_list.head)
226 michael 3272 {
227 michael 4816 struct Client *server = node->data;
228 michael 3272
229     if (server == source_p->from)
230     continue;
231    
232 michael 6921 sendto_one(server, ":%s UID %s %u %ju %s %s %s %s %s %s :%s",
233     source_p->servptr->id,
234     source_p->name, source_p->hopcount+1,
235     source_p->tsinfo,
236     ubuf, source_p->username, source_p->host,
237     source_p->sockhost, source_p->id,
238     source_p->account,
239     source_p->info);
240 michael 3272
241     if (!EmptyString(source_p->certfp))
242     sendto_one(server, ":%s CERTFP %s", source_p->id, source_p->certfp);
243     }
244     }
245    
246     /* user_welcome()
247     *
248     * inputs - client pointer to client to welcome
249     * output - NONE
250     * side effects -
251     */
252     static void
253     user_welcome(struct Client *source_p)
254     {
255     static const char built_date[] = __DATE__ " at " __TIME__;
256    
257     if (HasFlag(source_p, FLAGS_SSL))
258     {
259     AddUMode(source_p, UMODE_SSL);
260     sendto_one_notice(source_p, &me, ":*** Connected securely via %s",
261 michael 7106 tls_get_cipher(&source_p->connection->fd.ssl));
262 michael 3272 }
263    
264 michael 4341 sendto_one_numeric(source_p, &me, RPL_WELCOME, ConfigServerInfo.network_name,
265 michael 3272 source_p->name);
266     sendto_one_numeric(source_p, &me, RPL_YOURHOST,
267 michael 6368 listener_get_name(source_p->connection->listener), ircd_version);
268 michael 3272 sendto_one_numeric(source_p, &me, RPL_CREATED, built_date);
269     sendto_one_numeric(source_p, &me, RPL_MYINFO, me.name, ircd_version, umode_buffer);
270 michael 6253
271 michael 6186 isupport_show(source_p);
272 michael 3272 show_lusers(source_p);
273     motd_signon(source_p);
274     }
275    
276     /* check_xline()
277     *
278     * inputs - pointer to client to test
279     * outupt - 1 if exiting 0 if ok
280     * side effects -
281     */
282     static int
283     check_xline(struct Client *source_p)
284     {
285 michael 7303 const struct GecosItem *gecos = NULL;
286 michael 3272
287 michael 6314 if (HasFlag(source_p, FLAGS_EXEMPTXLINE))
288 michael 5986 return 0;
289    
290 michael 7303 if ((gecos = gecos_find(source_p->info, match)))
291 michael 3272 {
292     sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
293     "X-line Rejecting [%s] [%s], user %s [%s]",
294 michael 7303 source_p->info, gecos->reason,
295 michael 3272 get_client_name(source_p, HIDE_IP),
296     source_p->sockhost);
297    
298     ++ServerStats.is_ref;
299     exit_client(source_p, "Bad user info");
300     return 1;
301     }
302    
303     return 0;
304     }
305    
306 michael 3317 /*! \brief This function is called when both NICK and USER messages
307 michael 3316 * have been accepted for the client, in whatever order. Only
308     * after this, is the UID message propagated.
309 michael 3317 * \param source_p Pointer to given client to introduce
310 michael 3316 */
311 adx 30 void
312 michael 1080 register_local_user(struct Client *source_p)
313 adx 30 {
314 michael 1632 const struct MaskItem *conf = NULL;
315 adx 30
316 michael 1080 assert(source_p == source_p->from);
317 adx 30 assert(MyConnect(source_p));
318 michael 5591 assert(IsUnknown(source_p));
319 michael 4589 assert(!source_p->connection->registration);
320 adx 30
321 michael 4341 if (ConfigGeneral.ping_cookie)
322 adx 30 {
323 michael 6314 if (!HasFlag(source_p, FLAGS_PINGSENT) && !source_p->connection->random_ping)
324 adx 30 {
325 michael 983 do
326 michael 4589 source_p->connection->random_ping = genrand_int32();
327     while (!source_p->connection->random_ping);
328 michael 983
329 michael 4723 sendto_one(source_p, "PING :%u", source_p->connection->random_ping);
330 michael 6314 AddFlag(source_p, FLAGS_PINGSENT);
331 adx 30 return;
332     }
333    
334 michael 6314 if (!HasFlag(source_p, FLAGS_PING_COOKIE))
335 adx 30 return;
336     }
337    
338 michael 4589 source_p->connection->last_privmsg = CurrentTime;
339 adx 30 /* Straight up the maximum rate of flooding... */
340 michael 4589 source_p->connection->allow_read = MAX_FLOOD_BURST;
341 adx 30
342 michael 1644 if (!check_client(source_p))
343 adx 30 return;
344    
345 michael 2314 if (!valid_hostname(source_p->host))
346 adx 30 {
347 michael 3110 sendto_one_notice(source_p, &me, ":*** Notice -- You have an illegal "
348     "character in your hostname");
349 michael 4723 strlcpy(source_p->host, source_p->sockhost, sizeof(source_p->host));
350 adx 30 }
351    
352 michael 4589 conf = source_p->connection->confs.head->data;
353 adx 30
354 michael 6314 if (!HasFlag(source_p, FLAGS_GOTID))
355 adx 30 {
356 michael 3215 char username[USERLEN + 1] = "";
357 adx 30 unsigned int i = 0;
358    
359 michael 1632 if (IsNeedIdentd(conf))
360 adx 30 {
361 michael 896 ++ServerStats.is_ref;
362 michael 3110 sendto_one_notice(source_p, &me, ":*** Notice -- You need to install "
363     "identd to use this server");
364 michael 3171 exit_client(source_p, "Install identd");
365 adx 30 return;
366     }
367    
368 michael 1080 strlcpy(username, source_p->username, sizeof(username));
369 adx 30
370 michael 1632 if (!IsNoTilde(conf))
371 adx 30 source_p->username[i++] = '~';
372    
373 michael 6358 for (const char *p = username; *p && i < USERLEN; ++p)
374 michael 4109 source_p->username[i++] = *p;
375 adx 30
376     source_p->username[i] = '\0';
377     }
378    
379 michael 3317 /* Password check */
380 michael 1632 if (!EmptyString(conf->passwd))
381 adx 30 {
382 michael 4589 if (!match_conf_password(source_p->connection->password, conf))
383 adx 30 {
384 michael 896 ++ServerStats.is_ref;
385 michael 3109
386     sendto_one_numeric(source_p, &me, ERR_PASSWDMISMATCH);
387 michael 3171 exit_client(source_p, "Bad Password");
388 adx 30 return;
389     }
390     }
391    
392 michael 3317 /*
393 michael 4589 * Don't free source_p->connection->password here - it can be required
394 michael 4723 * by masked /stats I if there are auth {} blocks with need_password = no;
395 adx 30 * --adx
396     */
397    
398 michael 3317 /*
399     * Report if user has &^>= etc. and set flags as needed in source_p
400     */
401 michael 1632 report_and_set_user_flags(source_p, conf);
402 adx 30
403 michael 1080 if (IsDead(source_p))
404 michael 980 return;
405    
406 michael 3317 /*
407     * Limit clients -
408 adx 30 * We want to be able to have servers and F-line clients
409     * connect, so save room for "buffer" connections.
410     * Smaller servers may want to decrease this, and it should
411     * probably be just a percentage of the MAXCLIENTS...
412     * -Taner
413     */
414 michael 5488 if ((Count.local >= GlobalSetOptions.maxclients + MAX_BUFFER) ||
415 michael 6314 (Count.local >= GlobalSetOptions.maxclients && !HasFlag(source_p, FLAGS_NOLIMIT)))
416 adx 30 {
417 michael 1618 sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE,
418 adx 30 "Too many clients, rejecting %s[%s].",
419 michael 1080 source_p->name, source_p->host);
420 michael 896 ++ServerStats.is_ref;
421 michael 3171 exit_client(source_p, "Sorry, server is full - try later");
422 adx 30 return;
423     }
424    
425 michael 2314 if (!valid_username(source_p->username, 1))
426 adx 30 {
427 michael 3375 char buf[IRCD_BUFSIZE] = "";
428 adx 30
429 michael 1618 sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
430     "Invalid username: %s (%s@%s)",
431 michael 1080 source_p->name, source_p->username, source_p->host);
432 michael 896 ++ServerStats.is_ref;
433 michael 3375 snprintf(buf, sizeof(buf), "Invalid username [%s]", source_p->username);
434     exit_client(source_p, buf);
435 adx 30 return;
436     }
437    
438 michael 592 if (check_xline(source_p))
439 adx 30 return;
440    
441 michael 7571 const char *id;
442 michael 3215 while (hash_find_id((id = uid_get())))
443 michael 1115 ;
444 michael 573
445 michael 1115 strlcpy(source_p->id, id, sizeof(source_p->id));
446     hash_add_id(source_p);
447 adx 30
448 michael 1618 sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE,
449 michael 1137 "Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>",
450 michael 1080 source_p->name, source_p->username, source_p->host,
451 michael 4968 source_p->sockhost,
452 michael 4589 get_client_class(&source_p->connection->confs),
453 michael 1137 source_p->info, source_p->id);
454 adx 30
455 michael 4341 if (ConfigGeneral.invisible_on_connect)
456 michael 159 {
457 michael 1219 AddUMode(source_p, UMODE_INVISIBLE);
458 michael 980 ++Count.invisi;
459 michael 159 }
460 adx 30
461 michael 2314 if (++Count.local > Count.max_loc)
462 adx 30 {
463     Count.max_loc = Count.local;
464    
465     if (!(Count.max_loc % 10))
466 michael 6317 sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
467 michael 4587 "New maximum local client connections: %u",
468 adx 30 Count.max_loc);
469     }
470    
471     if (++Count.total > Count.max_tot)
472     Count.max_tot = Count.total;
473 michael 948 ++Count.totalrestartcount;
474 adx 30
475 michael 1080 assert(source_p->servptr == &me);
476     SetClient(source_p);
477     dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
478 michael 4188 dlinkAdd(source_p, &source_p->node, &global_client_list);
479 michael 1080
480 michael 1125 assert(dlinkFind(&unknown_list, source_p));
481 michael 1013
482 michael 4589 dlink_move_node(&source_p->connection->lclient_node,
483 michael 1126 &unknown_list, &local_client_list);
484 adx 30
485     user_welcome(source_p);
486 michael 6442 userhost_add(source_p->username, source_p->host, 0);
487 michael 6314 AddFlag(source_p, FLAGS_USERHOST);
488 adx 30
489 michael 1080 introduce_client(source_p);
490 adx 30 }
491    
492     /* register_remote_user()
493     *
494 michael 1080 * inputs - source_p remote or directly connected client
495 adx 30 * - username to register as
496     * - host name to register as
497     * - server name
498     * output - NONE
499     * side effects - This function is called when a remote client
500     * is introduced by a server.
501     */
502     void
503 michael 4091 register_remote_user(struct Client *source_p)
504 adx 30 {
505 michael 4224 const struct Client *target_p = NULL;
506 adx 30
507     if ((target_p = source_p->servptr) && target_p->from != source_p->from)
508     {
509 michael 1618 sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE,
510 adx 30 "Bad User [%s] :%s USER %s@%s %s, != %s[%s]",
511 michael 1080 source_p->from->name, source_p->name, source_p->username,
512 adx 30 source_p->host, source_p->servptr->name,
513     target_p->name, target_p->from->name);
514 michael 3176 sendto_one(source_p->from,
515 michael 4973 ":%s KILL %s :%s (UID from wrong direction (%s != %s))",
516 michael 3186 me.id, source_p->id, me.name, source_p->servptr->name,
517 michael 3176 target_p->from->name);
518    
519 michael 1219 AddFlag(source_p, FLAGS_KILLED);
520 michael 4973 exit_client(source_p, "UID server wrong direction");
521 adx 30 return;
522     }
523    
524 michael 1167 /*
525     * If the nick has been introduced by a services server,
526     * make it a service as well.
527     */
528 michael 1219 if (HasFlag(source_p->servptr, FLAGS_SERVICE))
529     AddFlag(source_p, FLAGS_SERVICE);
530 michael 1167
531 michael 510 if (++Count.total > Count.max_tot)
532     Count.max_tot = Count.total;
533    
534 adx 30 SetClient(source_p);
535 michael 889 dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
536 michael 4188 dlinkAdd(source_p, &source_p->node, &global_client_list);
537 michael 6442 userhost_add(source_p->username, source_p->host, 1);
538 michael 6314 AddFlag(source_p, FLAGS_USERHOST);
539 adx 30
540 michael 1976 if (HasFlag(source_p->servptr, FLAGS_EOB))
541 michael 5744 sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE,
542     "Client connecting at %s: %s (%s@%s) [%s] [%s] <%s>",
543     source_p->servptr->name,
544     source_p->name, source_p->username, source_p->host,
545     source_p->sockhost, source_p->info, source_p->id);
546 michael 1976
547 michael 1080 introduce_client(source_p);
548 adx 30 }
549    
550     /* valid_hostname()
551     *
552     * Inputs - pointer to hostname
553     * Output - 1 if valid, 0 if not
554     * Side effects - check hostname for validity
555     *
556     * NOTE: this doesn't allow a hostname to begin with a dot and
557     * will not allow more dots than chars.
558     */
559     int
560     valid_hostname(const char *hostname)
561     {
562     const char *p = hostname;
563    
564 michael 3235 assert(p);
565 adx 30
566 michael 2352 if (EmptyString(p) || *p == '.' || *p == ':')
567 michael 56 return 0;
568 adx 30
569 michael 1080 for (; *p; ++p)
570 adx 30 if (!IsHostChar(*p))
571 michael 56 return 0;
572 adx 30
573 michael 1795 return p - hostname <= HOSTLEN;
574 adx 30 }
575    
576     /* valid_username()
577     *
578     * Inputs - pointer to user
579     * Output - 1 if valid, 0 if not
580     * Side effects - check username for validity
581     *
582     * Absolutely always reject any '*' '!' '?' '@' in an user name
583     * reject any odd control characters names.
584     * Allow '.' in username to allow for "first.last"
585     * style of username
586     */
587     int
588 michael 2069 valid_username(const char *username, const int local)
589 adx 30 {
590     const char *p = username;
591    
592 michael 3235 assert(p);
593 adx 30
594 michael 1080 if (*p == '~')
595 adx 30 ++p;
596    
597 michael 2067 /*
598     * Reject usernames that don't start with an alphanum
599 adx 30 * i.e. reject jokers who have '-@somehost' or '.@somehost'
600     * or "-hi-@somehost", "h-----@somehost" would still be accepted.
601     */
602     if (!IsAlNum(*p))
603 michael 56 return 0;
604 adx 30
605 michael 2067 if (local)
606 adx 30 {
607 michael 6757 unsigned int dots = 0;
608    
609 michael 2067 while (*++p)
610 adx 30 {
611 michael 4341 if (*p == '.' && ConfigGeneral.dots_in_ident)
612 michael 2067 {
613 michael 4341 if (++dots > ConfigGeneral.dots_in_ident)
614 michael 2067 return 0;
615     if (!IsUserChar(*(p + 1)))
616     return 0;
617     }
618     else if (!IsUserChar(*p))
619 michael 56 return 0;
620 adx 30 }
621     }
622 michael 2067 else
623     {
624     while (*++p)
625     if (!IsUserChar(*p))
626     return 0;
627     }
628 adx 30
629 michael 3657 return p - username <= USERLEN;
630 adx 30 }
631    
632 michael 1165 /* clean_nick_name()
633     *
634     * input - nickname
635     * - whether it's a local nick (1) or remote (0)
636     * output - none
637     * side effects - walks through the nickname, returning 0 if erroneous
638     */
639     int
640     valid_nickname(const char *nickname, const int local)
641     {
642     const char *p = nickname;
643 michael 3318
644 michael 4983 assert(p);
645 michael 1165
646 michael 3317 /*
647     * Nicks can't start with a digit or - or be 0 length.
648     */
649 michael 4708 if (EmptyString(p) || *p == '-' || (IsDigit(*p) && local))
650 michael 1165 return 0;
651    
652     for (; *p; ++p)
653     if (!IsNickChar(*p))
654     return 0;
655    
656 michael 1431 return p - nickname <= NICKLEN;
657 michael 1165 }
658    
659 michael 7598 /*! \brief Builds a mode change string to buffer pointed by \a buf
660     * \param client_p Pointer to client
661     * \param send Whether to send a MODE message to client_p
662     * \param old Old user mode to compare against when building new mode buffer
663     * \param buf Pointer to buffer to build string in
664 adx 30 */
665     void
666 michael 7598 send_umode(struct Client *client_p, unsigned int send,
667     unsigned int old, char *buf)
668 adx 30 {
669 michael 7598 char *m = buf;
670 adx 30 int what = 0;
671    
672 michael 56 /*
673 michael 3317 * Build a string in umode_buf to represent the change in the user's
674 adx 30 * mode between the new (source_p->umodes) and 'old'.
675     */
676 michael 5393 for (const struct user_modes *tab = umode_tab; tab->c; ++tab)
677 adx 30 {
678 michael 7598 if ((tab->flag & old) && !HasUMode(client_p, tab->flag))
679 adx 30 {
680     if (what == MODE_DEL)
681 michael 5393 *m++ = tab->c;
682 adx 30 else
683     {
684     what = MODE_DEL;
685     *m++ = '-';
686 michael 5393 *m++ = tab->c;
687 adx 30 }
688     }
689 michael 7598 else if (!(tab->flag & old) && HasUMode(client_p, tab->flag))
690 adx 30 {
691     if (what == MODE_ADD)
692 michael 5393 *m++ = tab->c;
693 adx 30 else
694     {
695     what = MODE_ADD;
696     *m++ = '+';
697 michael 5393 *m++ = tab->c;
698 adx 30 }
699     }
700     }
701    
702     *m = '\0';
703    
704 michael 7598 if (send && *buf)
705 michael 528 sendto_one(client_p, ":%s!%s@%s MODE %s :%s",
706 michael 4705 client_p->name, client_p->username,
707 michael 7598 client_p->host, client_p->name, buf);
708 adx 30 }
709    
710     /* send_umode_out()
711     *
712     * inputs -
713     * output - NONE
714     * side effects - Only send ubuf out to servers that know about this client
715     */
716     void
717 michael 4706 send_umode_out(struct Client *source_p, unsigned int old)
718 adx 30 {
719 michael 3215 char buf[IRCD_BUFSIZE] = "";
720 adx 30
721 michael 7600 send_umode(source_p, MyConnect(source_p), old, buf);
722 adx 30
723 michael 573 if (buf[0])
724 michael 4963 sendto_server(source_p, 0, 0, ":%s MODE %s :%s",
725 michael 3186 source_p->id, source_p->id, buf);
726 adx 30 }
727    
728 michael 1819 void
729 michael 2137 user_set_hostmask(struct Client *target_p, const char *hostname, const int what)
730 michael 1819 {
731 michael 4816 dlink_node *node = NULL;
732 michael 2141
733 michael 2145 if (!strcmp(target_p->host, hostname))
734     return;
735 michael 2141
736 michael 2137 switch (what)
737     {
738     case MODE_ADD:
739     AddUMode(target_p, UMODE_HIDDENHOST);
740     break;
741     case MODE_DEL:
742     DelUMode(target_p, UMODE_HIDDENHOST);
743     break;
744 michael 2145 default: return;
745 michael 2137 }
746    
747 michael 4341 if (ConfigGeneral.cycle_on_host_change)
748 michael 6775 sendto_common_channels_local(target_p, 0, 0, CAP_CHGHOST, ":%s!%s@%s QUIT :Changing hostname",
749 michael 2289 target_p->name, target_p->username, target_p->host);
750 michael 2145
751 michael 6775 sendto_common_channels_local(target_p, 0, CAP_CHGHOST, 0, ":%s!%s@%s CHGHOST %s %s",
752     target_p->name, target_p->username,
753     target_p->host, target_p->username, hostname);
754    
755 michael 6314 if (HasFlag(target_p, FLAGS_USERHOST))
756 michael 6442 userhost_del(target_p->username, target_p->host, !MyConnect(target_p));
757 michael 2145
758     strlcpy(target_p->host, hostname, sizeof(target_p->host));
759    
760 michael 6442 userhost_add(target_p->username, target_p->host, !MyConnect(target_p));
761 michael 6314 AddFlag(target_p, FLAGS_USERHOST);
762 michael 2145
763 michael 6731 if (MyConnect(target_p))
764 michael 2137 {
765 michael 4558 sendto_one_numeric(target_p, &me, RPL_VISIBLEHOST, target_p->host);
766 michael 1819 clear_ban_cache_client(target_p);
767 michael 2137 }
768 michael 2141
769 michael 4341 if (!ConfigGeneral.cycle_on_host_change)
770 michael 2283 return;
771    
772 michael 4816 DLINK_FOREACH(node, target_p->channel.head)
773 michael 2141 {
774 michael 6902 char modebuf[CMEMBER_STATUS_FLAGS_LEN + 1];
775     char nickbuf[CMEMBER_STATUS_FLAGS_LEN * NICKLEN + CMEMBER_STATUS_FLAGS_LEN] = "";
776 michael 2141 char *p = modebuf;
777     int len = 0;
778 michael 4816 const struct Membership *member = node->data;
779 michael 2141
780 michael 4816 if (has_member_flags(member, CHFL_CHANOP))
781 michael 2283 {
782 michael 2141 *p++ = 'o';
783     len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
784     }
785    
786 michael 4816 if (has_member_flags(member, CHFL_HALFOP))
787 michael 2283 {
788 michael 2141 *p++ = 'h';
789     len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
790     }
791    
792 michael 4816 if (has_member_flags(member, CHFL_VOICE))
793 michael 2283 {
794 michael 2141 *p++ = 'v';
795     len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
796     }
797    
798     *p = '\0';
799    
800 michael 6775 sendto_channel_local(target_p, member->chptr, 0, CAP_EXTENDED_JOIN, CAP_CHGHOST, ":%s!%s@%s JOIN %s %s :%s",
801 michael 6760 target_p->name, target_p->username,
802     target_p->host, member->chptr->name,
803 michael 6920 target_p->account, target_p->info);
804 michael 6775 sendto_channel_local(target_p, member->chptr, 0, 0, CAP_EXTENDED_JOIN | CAP_CHGHOST, ":%s!%s@%s JOIN :%s",
805 michael 6760 target_p->name, target_p->username,
806     target_p->host, member->chptr->name);
807 michael 4793
808 michael 2141 if (nickbuf[0])
809 michael 6775 sendto_channel_local(target_p, member->chptr, 0, 0, CAP_CHGHOST, ":%s MODE %s +%s %s",
810 michael 6760 target_p->servptr->name, member->chptr->name,
811     modebuf, nickbuf);
812 michael 2141 }
813 michael 6778
814     if (target_p->away[0])
815     sendto_common_channels_local(target_p, 0, CAP_AWAY_NOTIFY, CAP_CHGHOST,
816     ":%s!%s@%s AWAY :%s",
817     target_p->name, target_p->username,
818     target_p->host, target_p->away);
819 michael 1819 }

Properties

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