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root/svn/ircd-hybrid/branches/8.2.x/src/user.c
Revision: 1857
Committed: Wed Apr 24 20:47:21 2013 UTC (10 years, 11 months ago) by michael
Content type: text/x-csrc
Original Path: ircd-hybrid/trunk/src/s_user.c
File size: 40601 byte(s)
Log Message:
- Constification

File Contents

# User Rev Content
1 adx 30 /*
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 knight 31 * $Id$
23 adx 30 */
24    
25     #include "stdinc.h"
26 michael 1011 #include "list.h"
27 adx 30 #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 "s_bsd.h"
36     #include "ircd.h"
37     #include "listener.h"
38     #include "motd.h"
39     #include "numeric.h"
40 michael 1309 #include "conf.h"
41     #include "log.h"
42 adx 30 #include "s_serv.h"
43     #include "send.h"
44     #include "supported.h"
45     #include "whowas.h"
46     #include "memory.h"
47     #include "packet.h"
48 michael 982 #include "rng_mt.h"
49 adx 30 #include "userhost.h"
50     #include "hook.h"
51     #include "s_misc.h"
52 michael 1243 #include "parse.h"
53 michael 876 #include "watch.h"
54 adx 30
55 michael 1143
56 adx 30 struct Callback *entering_umode_cb = NULL;
57     struct Callback *umode_cb = NULL;
58    
59     static char umode_buffer[IRCD_BUFSIZE];
60    
61     static void user_welcome(struct Client *);
62 michael 1632 static void report_and_set_user_flags(struct Client *, const struct MaskItem *);
63 adx 30 static int check_xline(struct Client *);
64 michael 1080 static void introduce_client(struct Client *);
65     static const char *uid_get(void);
66 adx 30
67     /* Used for building up the isupport string,
68     * used with init_isupport, add_isupport, delete_isupport
69     */
70    
71     struct Isupport
72     {
73     dlink_node node;
74     char *name;
75     char *options;
76     int number;
77     };
78    
79     static dlink_list support_list = { NULL, NULL, 0 };
80     MessageFile *isupportFile;
81    
82     /* memory is cheap. map 0-255 to equivalent mode */
83     unsigned int user_modes[256] =
84     {
85     /* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x0F */
86     /* 0x10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1F */
87     /* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2F */
88     /* 0x30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x3F */
89     0, /* @ */
90     0, /* A */
91     0, /* B */
92 db 849 UMODE_CCONN_FULL, /* C */
93 adx 30 UMODE_DEAF, /* D */
94     0, /* E */
95     0, /* F */
96     UMODE_SOFTCALLERID, /* G */
97 michael 1294 UMODE_HIDDEN, /* H */
98 adx 30 0, /* I */
99     0, /* J */
100     0, /* K */
101     0, /* L */
102     0, /* M */
103     0, /* N */
104     0, /* O */
105     0, /* P */
106     0, /* Q */
107 michael 1175 UMODE_REGONLY, /* R */
108     0, /* S */
109 adx 30 0, /* T */
110     0, /* U */
111     0, /* V */
112     0, /* W */
113     0, /* X */
114     0, /* Y */
115     0, /* Z 0x5A */
116     0, 0, 0, 0, 0, /* 0x5F */
117     0, /* 0x60 */
118     UMODE_ADMIN, /* a */
119     UMODE_BOTS, /* b */
120     UMODE_CCONN, /* c */
121     UMODE_DEBUG, /* d */
122 michael 1818 UMODE_EXTERNAL, /* e */
123 adx 30 UMODE_FULL, /* f */
124     UMODE_CALLERID, /* g */
125     0, /* h */
126     UMODE_INVISIBLE, /* i */
127 michael 1158 UMODE_REJ, /* j */
128 adx 30 UMODE_SKILL, /* k */
129     UMODE_LOCOPS, /* l */
130     0, /* m */
131     UMODE_NCHANGE, /* n */
132     UMODE_OPER, /* o */
133     0, /* p */
134     0, /* q */
135 michael 1158 UMODE_REGISTERED, /* r */
136 adx 30 UMODE_SERVNOTICE, /* s */
137     0, /* t */
138     UMODE_UNAUTH, /* u */
139     0, /* v */
140     UMODE_WALLOP, /* w */
141 michael 1818 0, /* x */
142 adx 30 UMODE_SPY, /* y */
143     UMODE_OPERWALL, /* z 0x7A */
144     0,0,0,0,0, /* 0x7B - 0x7F */
145    
146     /* 0x80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x8F */
147     /* 0x90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x9F */
148     /* 0xA0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xAF */
149     /* 0xB0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xBF */
150     /* 0xC0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xCF */
151     /* 0xD0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xDF */
152     /* 0xE0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xEF */
153     /* 0xF0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xFF */
154     };
155    
156     void
157     assemble_umode_buffer(void)
158     {
159     unsigned int idx = 0;
160     char *umode_buffer_ptr = umode_buffer;
161    
162 michael 1013 for (; idx < (sizeof(user_modes) / sizeof(user_modes[0])); ++idx)
163 adx 30 if (user_modes[idx])
164     *umode_buffer_ptr++ = idx;
165    
166     *umode_buffer_ptr = '\0';
167     }
168    
169     /* show_lusers()
170     *
171     * inputs - pointer to client
172     * output - NONE
173     * side effects - display to client user counts etc.
174     */
175     void
176     show_lusers(struct Client *source_p)
177     {
178     const char *from, *to;
179    
180     if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
181     {
182     from = me.id;
183     to = source_p->id;
184     }
185     else
186     {
187     from = me.name;
188     to = source_p->name;
189     }
190    
191 michael 1219 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
192 michael 1834 sendto_one(source_p, form_str(RPL_LUSERCLIENT),
193 adx 30 from, to, (Count.total-Count.invisi),
194     Count.invisi, dlink_list_length(&global_serv_list));
195     else
196 michael 1834 sendto_one(source_p, form_str(RPL_LUSERCLIENT), from, to,
197 michael 56 (Count.total-Count.invisi), Count.invisi, 1);
198 adx 30
199     if (Count.oper > 0)
200 michael 1834 sendto_one(source_p, form_str(RPL_LUSEROP),
201 michael 56 from, to, Count.oper);
202 adx 30
203     if (dlink_list_length(&unknown_list) > 0)
204 michael 1834 sendto_one(source_p, form_str(RPL_LUSERUNKNOWN),
205 michael 56 from, to, dlink_list_length(&unknown_list));
206 adx 30
207     if (dlink_list_length(&global_channel_list) > 0)
208 michael 1834 sendto_one(source_p, form_str(RPL_LUSERCHANNELS),
209 michael 56 from, to, dlink_list_length(&global_channel_list));
210 adx 30
211 michael 1219 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
212 adx 30 {
213 michael 1834 sendto_one(source_p, form_str(RPL_LUSERME),
214 michael 56 from, to, Count.local, Count.myserver);
215 michael 1834 sendto_one(source_p, form_str(RPL_LOCALUSERS),
216 michael 1836 from, to, Count.local, Count.max_loc);
217 adx 30 }
218     else
219     {
220 michael 1834 sendto_one(source_p, form_str(RPL_LUSERME),
221 michael 56 from, to, Count.total, 0);
222 michael 1834 sendto_one(source_p, form_str(RPL_LOCALUSERS),
223 michael 1836 from, to, Count.total, Count.max_tot);
224 adx 30 }
225    
226 michael 1834 sendto_one(source_p, form_str(RPL_GLOBALUSERS),
227 michael 1836 from, to, Count.total, Count.max_tot);
228 adx 30
229 michael 1219 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
230 michael 1834 sendto_one(source_p, form_str(RPL_STATSCONN), from, to,
231 michael 1143 Count.max_loc_con, Count.max_loc_cli, Count.totalrestartcount);
232 adx 30
233 michael 1143 if (Count.local > Count.max_loc_cli)
234     Count.max_loc_cli = Count.local;
235 adx 30
236 michael 1143 if ((Count.local + Count.myserver) > Count.max_loc_con)
237     Count.max_loc_con = Count.local + Count.myserver;
238 adx 30 }
239    
240     /* show_isupport()
241     *
242     * inputs - pointer to client
243     * output - NONE
244     * side effects - display to client what we support (for them)
245     */
246     void
247     show_isupport(struct Client *source_p)
248     {
249     send_message_file(source_p, isupportFile);
250     }
251    
252     /*
253     ** register_local_user
254     ** This function is called when both NICK and USER messages
255     ** have been accepted for the client, in whatever order. Only
256     ** after this, is the USER message propagated.
257     **
258     ** NICK's must be propagated at once when received, although
259     ** it would be better to delay them too until full info is
260     ** available. Doing it is not so simple though, would have
261     ** to implement the following:
262     **
263     ** (actually it has been implemented already for a while) -orabidoo
264     **
265     ** 1) user telnets in and gives only "NICK foobar" and waits
266     ** 2) another user far away logs in normally with the nick
267     ** "foobar" (quite legal, as this server didn't propagate
268     ** it).
269     ** 3) now this server gets nick "foobar" from outside, but
270     ** has alread the same defined locally. Current server
271     ** would just issue "KILL foobar" to clean out dups. But,
272     ** this is not fair. It should actually request another
273     ** nick from local user or kill him/her...
274     */
275     void
276 michael 1080 register_local_user(struct Client *source_p)
277 adx 30 {
278 michael 1115 const char *id = NULL;
279 michael 1632 const struct MaskItem *conf = NULL;
280 adx 30
281     assert(source_p != NULL);
282 michael 1080 assert(source_p == source_p->from);
283 adx 30 assert(MyConnect(source_p));
284 michael 503 assert(!source_p->localClient->registration);
285 adx 30
286 michael 1080 ClearCap(source_p, CAP_TS6);
287 michael 589
288 adx 30 if (ConfigFileEntry.ping_cookie)
289     {
290 michael 1080 if (!IsPingSent(source_p) && source_p->localClient->random_ping == 0)
291 adx 30 {
292 michael 983 do
293     source_p->localClient->random_ping = genrand_int32();
294     while (!source_p->localClient->random_ping);
295    
296 michael 982 sendto_one(source_p, "PING :%u",
297 adx 30 source_p->localClient->random_ping);
298     SetPingSent(source_p);
299     return;
300     }
301    
302     if (!HasPingCookie(source_p))
303     return;
304     }
305    
306 michael 1176 source_p->localClient->last_privmsg = CurrentTime;
307 adx 30 /* Straight up the maximum rate of flooding... */
308     source_p->localClient->allow_read = MAX_FLOOD_BURST;
309    
310 michael 1644 if (!check_client(source_p))
311 adx 30 return;
312    
313     if (valid_hostname(source_p->host) == 0)
314     {
315     sendto_one(source_p, ":%s NOTICE %s :*** Notice -- You have an illegal "
316     "character in your hostname", me.name, source_p->name);
317     strlcpy(source_p->host, source_p->sockhost,
318     sizeof(source_p->host));
319     }
320    
321 michael 1632 conf = source_p->localClient->confs.head->data;
322 adx 30
323     if (!IsGotId(source_p))
324     {
325 michael 1080 char username[USERLEN + 1];
326     const char *p = username;
327 adx 30 unsigned int i = 0;
328    
329 michael 1632 if (IsNeedIdentd(conf))
330 adx 30 {
331 michael 896 ++ServerStats.is_ref;
332 adx 30 sendto_one(source_p, ":%s NOTICE %s :*** Notice -- You need to install "
333     "identd to use this server", me.name, source_p->name);
334     exit_client(source_p, &me, "Install identd");
335     return;
336     }
337    
338 michael 1080 strlcpy(username, source_p->username, sizeof(username));
339 adx 30
340 michael 1632 if (!IsNoTilde(conf))
341 adx 30 source_p->username[i++] = '~';
342    
343 michael 1080 for (; *p && i < USERLEN; ++p)
344 adx 30 if (*p != '[')
345     source_p->username[i++] = *p;
346    
347     source_p->username[i] = '\0';
348     }
349    
350     /* password check */
351 michael 1632 if (!EmptyString(conf->passwd))
352 adx 30 {
353     const char *pass = source_p->localClient->passwd;
354    
355 michael 1632 if (!match_conf_password(pass, conf))
356 adx 30 {
357 michael 896 ++ServerStats.is_ref;
358 michael 1834 sendto_one(source_p, form_str(ERR_PASSWDMISMATCH),
359 adx 30 me.name, source_p->name);
360     exit_client(source_p, &me, "Bad Password");
361     return;
362     }
363     }
364    
365     /* don't free source_p->localClient->passwd here - it can be required
366     * by masked /stats I if there are auth{} blocks with need_password = no;
367     * --adx
368     */
369    
370     /* report if user has &^>= etc. and set flags as needed in source_p */
371 michael 1632 report_and_set_user_flags(source_p, conf);
372 adx 30
373 michael 1080 if (IsDead(source_p))
374 michael 980 return;
375    
376 adx 30 /* Limit clients -
377     * We want to be able to have servers and F-line clients
378     * connect, so save room for "buffer" connections.
379     * Smaller servers may want to decrease this, and it should
380     * probably be just a percentage of the MAXCLIENTS...
381     * -Taner
382     */
383     /* Except "F:" clients */
384     if ((Count.local >= ServerInfo.max_clients + MAX_BUFFER) ||
385     (Count.local >= ServerInfo.max_clients && !IsExemptLimits(source_p)))
386     {
387 michael 1618 sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE,
388 adx 30 "Too many clients, rejecting %s[%s].",
389 michael 1080 source_p->name, source_p->host);
390 michael 896 ++ServerStats.is_ref;
391 adx 30 exit_client(source_p, &me, "Sorry, server is full - try later");
392     return;
393     }
394    
395     /* valid user name check */
396     if (valid_username(source_p->username) == 0)
397     {
398     char tmpstr2[IRCD_BUFSIZE];
399    
400 michael 1618 sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
401     "Invalid username: %s (%s@%s)",
402 michael 1080 source_p->name, source_p->username, source_p->host);
403 michael 896 ++ServerStats.is_ref;
404 michael 1124 snprintf(tmpstr2, sizeof(tmpstr2), "Invalid username [%s]",
405     source_p->username);
406 adx 30 exit_client(source_p, &me, tmpstr2);
407     return;
408     }
409    
410 michael 592 if (check_xline(source_p))
411 adx 30 return;
412    
413 michael 1115 while (hash_find_id((id = uid_get())) != NULL)
414     ;
415 michael 573
416 michael 1115 strlcpy(source_p->id, id, sizeof(source_p->id));
417     hash_add_id(source_p);
418 adx 30
419 michael 1618 sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE,
420 michael 1137 "Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>",
421 michael 1080 source_p->name, source_p->username, source_p->host,
422 adx 30 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
423 michael 891 "255.255.255.255" : source_p->sockhost,
424 michael 1632 get_client_class(&source_p->localClient->confs),
425 michael 1137 source_p->info, source_p->id);
426 adx 30
427 michael 1618 sendto_realops_flags(UMODE_CCONN_FULL, L_ALL, SEND_NOTICE,
428 db 849 "CLICONN %s %s %s %s %s %s %s 0 %s",
429 michael 1080 source_p->name, source_p->username, source_p->host,
430 db 849 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
431 michael 891 "255.255.255.255" : source_p->sockhost,
432 michael 1632 get_client_class(&source_p->localClient->confs),
433 db 849 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
434 michael 1113 "<hidden>" : source_p->localClient->client_host,
435 db 849 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
436 michael 1113 "<hidden>" : source_p->localClient->client_server,
437 db 849 source_p->info);
438    
439    
440 adx 30 if (ConfigFileEntry.invisible_on_connect)
441 michael 159 {
442 michael 1219 AddUMode(source_p, UMODE_INVISIBLE);
443 michael 980 ++Count.invisi;
444 michael 159 }
445 adx 30
446     if ((++Count.local) > Count.max_loc)
447     {
448     Count.max_loc = Count.local;
449    
450     if (!(Count.max_loc % 10))
451 michael 1618 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
452     "New Max Local Clients: %d",
453 adx 30 Count.max_loc);
454     }
455    
456     /* Increment our total user count here */
457     if (++Count.total > Count.max_tot)
458     Count.max_tot = Count.total;
459 michael 948 ++Count.totalrestartcount;
460 adx 30
461 michael 1080 assert(source_p->servptr == &me);
462     SetClient(source_p);
463     dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
464    
465 adx 30 source_p->localClient->allow_read = MAX_FLOOD_BURST;
466    
467 michael 1125 assert(dlinkFind(&unknown_list, source_p));
468 michael 1013
469 michael 1126 dlink_move_node(&source_p->localClient->lclient_node,
470     &unknown_list, &local_client_list);
471 adx 30
472     user_welcome(source_p);
473     add_user_host(source_p->username, source_p->host, 0);
474     SetUserHost(source_p);
475    
476 michael 1080 introduce_client(source_p);
477 adx 30 }
478    
479     /* register_remote_user()
480     *
481 michael 1080 * inputs - source_p remote or directly connected client
482 adx 30 * - username to register as
483     * - host name to register as
484     * - server name
485     * - realname (gecos)
486     * output - NONE
487     * side effects - This function is called when a remote client
488     * is introduced by a server.
489     */
490     void
491 michael 1080 register_remote_user(struct Client *source_p,
492 michael 56 const char *username, const char *host, const char *server,
493     const char *realname)
494 adx 30 {
495 michael 56 struct Client *target_p = NULL;
496 adx 30
497     assert(source_p != NULL);
498     assert(source_p->username != username);
499    
500     strlcpy(source_p->host, host, sizeof(source_p->host));
501     strlcpy(source_p->username, username, sizeof(source_p->username));
502    
503     /*
504     * coming from another server, take the servers word for it
505     */
506 michael 1169 source_p->servptr = hash_find_server(server);
507 adx 30
508 michael 1618 /*
509     * Super GhostDetect:
510 adx 30 * If we can't find the server the user is supposed to be on,
511     * then simply blow the user away. -Taner
512     */
513     if (source_p->servptr == NULL)
514     {
515 michael 1618 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
516 adx 30 "No server %s for user %s[%s@%s] from %s",
517     server, source_p->name, source_p->username,
518     source_p->host, source_p->from->name);
519 michael 1080 kill_client(source_p->from, source_p, "%s (Server doesn't exist)", me.name);
520 adx 30
521 michael 1219 AddFlag(source_p, FLAGS_KILLED);
522 adx 30 exit_client(source_p, &me, "Ghosted Client");
523     return;
524     }
525    
526     if ((target_p = source_p->servptr) && target_p->from != source_p->from)
527     {
528 michael 1618 sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE,
529 adx 30 "Bad User [%s] :%s USER %s@%s %s, != %s[%s]",
530 michael 1080 source_p->from->name, source_p->name, source_p->username,
531 adx 30 source_p->host, source_p->servptr->name,
532     target_p->name, target_p->from->name);
533 michael 1080 kill_client(source_p->from, source_p,
534 adx 30 "%s (NICK from wrong direction (%s != %s))",
535     me.name, source_p->servptr->name, target_p->from->name);
536 michael 1219 AddFlag(source_p, FLAGS_KILLED);
537 adx 30 exit_client(source_p, &me, "USER server wrong direction");
538     return;
539     }
540    
541 michael 1167 /*
542     * If the nick has been introduced by a services server,
543     * make it a service as well.
544     */
545 michael 1219 if (HasFlag(source_p->servptr, FLAGS_SERVICE))
546     AddFlag(source_p, FLAGS_SERVICE);
547 michael 1167
548 michael 510 /* Increment our total user count here */
549     if (++Count.total > Count.max_tot)
550     Count.max_tot = Count.total;
551    
552 adx 30 SetClient(source_p);
553 michael 889 dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
554 adx 30 add_user_host(source_p->username, source_p->host, 1);
555     SetUserHost(source_p);
556    
557 michael 1080 introduce_client(source_p);
558 adx 30 }
559    
560     /* introduce_client()
561     *
562 michael 1080 * inputs - source_p
563 adx 30 * output - NONE
564     * side effects - This common function introduces a client to the rest
565     * of the net, either from a local client connect or
566     * from a remote connect.
567     */
568     static void
569 michael 1080 introduce_client(struct Client *source_p)
570 adx 30 {
571 michael 56 dlink_node *server_node = NULL;
572 adx 30 static char ubuf[12];
573    
574     if (MyClient(source_p))
575     send_umode(source_p, source_p, 0, SEND_UMODES, ubuf);
576     else
577     send_umode(NULL, source_p, 0, SEND_UMODES, ubuf);
578    
579 michael 876 watch_check_hash(source_p, RPL_LOGON);
580    
581 adx 30 if (*ubuf == '\0')
582     {
583     ubuf[0] = '+';
584     ubuf[1] = '\0';
585     }
586    
587 michael 885 DLINK_FOREACH(server_node, serv_list.head)
588     {
589     struct Client *server = server_node->data;
590 adx 30
591 michael 1080 if (server == source_p->from)
592 michael 885 continue;
593    
594 michael 1196 if (IsCapable(server, CAP_SVS))
595     {
596     if (IsCapable(server, CAP_TS6) && HasID(source_p))
597 michael 1559 sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s %s :%s",
598 michael 1196 source_p->servptr->id,
599     source_p->name, source_p->hopcount+1,
600     (unsigned long)source_p->tsinfo,
601     ubuf, source_p->username, source_p->host,
602     (MyClient(source_p) && IsIPSpoof(source_p)) ?
603     "0" : source_p->sockhost, source_p->id,
604 michael 1559 source_p->svid,
605 michael 1196 source_p->info);
606     else
607 michael 1559 sendto_one(server, "NICK %s %d %lu %s %s %s %s %s :%s",
608 michael 1196 source_p->name, source_p->hopcount+1,
609     (unsigned long)source_p->tsinfo,
610     ubuf, source_p->username, source_p->host,
611 michael 1559 source_p->servptr->name, source_p->svid,
612 michael 1196 source_p->info);
613    
614     }
615 adx 30 else
616 michael 1196 {
617     if (IsCapable(server, CAP_TS6) && HasID(source_p))
618     sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s :%s",
619     source_p->servptr->id,
620     source_p->name, source_p->hopcount+1,
621     (unsigned long)source_p->tsinfo,
622     ubuf, source_p->username, source_p->host,
623     (MyClient(source_p) && IsIPSpoof(source_p)) ?
624     "0" : source_p->sockhost, source_p->id, source_p->info);
625     else
626     sendto_one(server, "NICK %s %d %lu %s %s %s %s :%s",
627     source_p->name, source_p->hopcount+1,
628     (unsigned long)source_p->tsinfo,
629     ubuf, source_p->username, source_p->host,
630     source_p->servptr->name, source_p->info);
631     }
632 adx 30 }
633     }
634    
635     /* valid_hostname()
636     *
637     * Inputs - pointer to hostname
638     * Output - 1 if valid, 0 if not
639     * Side effects - check hostname for validity
640     *
641     * NOTE: this doesn't allow a hostname to begin with a dot and
642     * will not allow more dots than chars.
643     */
644     int
645     valid_hostname(const char *hostname)
646     {
647     const char *p = hostname;
648    
649     assert(p != NULL);
650    
651 michael 1080 if (*p == '.' || *p == ':')
652 michael 56 return 0;
653 adx 30
654 michael 1080 for (; *p; ++p)
655 adx 30 if (!IsHostChar(*p))
656 michael 56 return 0;
657 adx 30
658 michael 1795 return p - hostname <= HOSTLEN;
659 adx 30 }
660    
661     /* valid_username()
662     *
663     * Inputs - pointer to user
664     * Output - 1 if valid, 0 if not
665     * Side effects - check username for validity
666     *
667     * Absolutely always reject any '*' '!' '?' '@' in an user name
668     * reject any odd control characters names.
669     * Allow '.' in username to allow for "first.last"
670     * style of username
671     */
672     int
673     valid_username(const char *username)
674     {
675     int dots = 0;
676     const char *p = username;
677    
678     assert(p != NULL);
679    
680 michael 1080 if (*p == '~')
681 adx 30 ++p;
682    
683     /* reject usernames that don't start with an alphanum
684     * i.e. reject jokers who have '-@somehost' or '.@somehost'
685     * or "-hi-@somehost", "h-----@somehost" would still be accepted.
686     */
687     if (!IsAlNum(*p))
688 michael 56 return 0;
689 adx 30
690     while (*++p)
691     {
692     if ((*p == '.') && ConfigFileEntry.dots_in_ident)
693     {
694 michael 1080 if (++dots > ConfigFileEntry.dots_in_ident)
695 michael 56 return 0;
696 michael 1080 if (!IsUserChar(*(p + 1)))
697 michael 56 return 0;
698 adx 30 }
699     else if (!IsUserChar(*p))
700 michael 56 return 0;
701 adx 30 }
702    
703 michael 56 return 1;
704 adx 30 }
705    
706 michael 1165 /* clean_nick_name()
707     *
708     * input - nickname
709     * - whether it's a local nick (1) or remote (0)
710     * output - none
711     * side effects - walks through the nickname, returning 0 if erroneous
712     */
713     int
714     valid_nickname(const char *nickname, const int local)
715     {
716     const char *p = nickname;
717     assert(nickname && *nickname);
718    
719     /* nicks can't start with a digit or - or be 0 length */
720     /* This closer duplicates behaviour of hybrid-6 */
721     if (*p == '-' || (IsDigit(*p) && local) || *p == '\0')
722     return 0;
723    
724     for (; *p; ++p)
725     if (!IsNickChar(*p))
726     return 0;
727    
728 michael 1431 return p - nickname <= NICKLEN;
729 michael 1165 }
730    
731 adx 30 /* report_and_set_user_flags()
732     *
733     * inputs - pointer to source_p
734 michael 1632 * - pointer to conf for this user
735 adx 30 * output - NONE
736     * side effects - Report to user any special flags
737     * they are getting, and set them.
738     */
739     static void
740 michael 1632 report_and_set_user_flags(struct Client *source_p, const struct MaskItem *conf)
741 adx 30 {
742     /* If this user is being spoofed, tell them so */
743 michael 1632 if (IsConfDoSpoofIp(conf))
744 adx 30 {
745     sendto_one(source_p,
746     ":%s NOTICE %s :*** Spoofing your IP. congrats.",
747     me.name, source_p->name);
748     }
749    
750     /* If this user is in the exception class, Set it "E lined" */
751 michael 1632 if (IsConfExemptKline(conf))
752 adx 30 {
753     SetExemptKline(source_p);
754     sendto_one(source_p,
755     ":%s NOTICE %s :*** You are exempt from K/D/G lines. congrats.",
756     me.name, source_p->name);
757     }
758    
759     /* The else here is to make sure that G line exempt users
760     * do not get noticed twice.
761     */
762 michael 1632 else if (IsConfExemptGline(conf))
763 adx 30 {
764     SetExemptGline(source_p);
765     sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from G lines.",
766     me.name, source_p->name);
767     }
768    
769 michael 1632 if (IsConfExemptResv(conf))
770 adx 30 {
771     SetExemptResv(source_p);
772     sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from resvs.",
773     me.name, source_p->name);
774     }
775    
776     /* If this user is exempt from user limits set it "F lined" */
777 michael 1632 if (IsConfExemptLimits(conf))
778 adx 30 {
779     SetExemptLimits(source_p);
780     sendto_one(source_p,
781     ":%s NOTICE %s :*** You are exempt from user limits. congrats.",
782     me.name,source_p->name);
783     }
784    
785 michael 1632 if (IsConfCanFlood(conf))
786 adx 30 {
787     SetCanFlood(source_p);
788     sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from flood "
789     "protection, aren't you fearsome.",
790     me.name, source_p->name);
791     }
792     }
793    
794     /* change_simple_umode()
795     *
796     * this callback can be hooked to allow special handling of
797     * certain usermodes
798     */
799     static void *
800     change_simple_umode(va_list args)
801     {
802 michael 627 struct Client *client_p;
803 adx 30 struct Client *source_p;
804     int what;
805     unsigned int flag;
806    
807 michael 627 client_p = va_arg(args, struct Client *);
808 adx 30 source_p = va_arg(args, struct Client *);
809     what = va_arg(args, int);
810     flag = va_arg(args, unsigned int);
811    
812     if (what == MODE_ADD)
813 michael 1219 AddUMode(source_p, flag);
814 adx 30 else
815 michael 1219 DelUMode(source_p, flag);
816 adx 30
817     return NULL;
818     }
819    
820     /* set_user_mode()
821     *
822     * added 15/10/91 By Darren Reed.
823     * parv[0] - sender
824     * parv[1] - username to change mode for
825     * parv[2] - modes to change
826     */
827     void
828     set_user_mode(struct Client *client_p, struct Client *source_p,
829 michael 1857 const int parc, char *parv[])
830 adx 30 {
831     unsigned int flag, setflags;
832     char **p, *m, buf[IRCD_BUFSIZE];
833     struct Client *target_p;
834     int what = MODE_ADD, badflag = 0, i;
835 michael 56
836     assert(!(parc < 2));
837    
838 adx 30 if ((target_p = find_person(client_p, parv[1])) == NULL)
839     {
840     if (MyConnect(source_p))
841 michael 1834 sendto_one(source_p, form_str(ERR_NOSUCHCHANNEL),
842 adx 30 me.name, source_p->name, parv[1]);
843     return;
844     }
845    
846 michael 1115 if (source_p != target_p)
847 adx 30 {
848 michael 1834 sendto_one(source_p, form_str(ERR_USERSDONTMATCH),
849 adx 30 me.name, source_p->name);
850     return;
851     }
852    
853     if (parc < 3)
854     {
855     m = buf;
856     *m++ = '+';
857    
858     for (i = 0; i < 128; i++)
859 michael 1219 if (HasUMode(source_p, user_modes[i]))
860 adx 30 *m++ = (char)i;
861     *m = '\0';
862    
863 michael 1834 sendto_one(source_p, form_str(RPL_UMODEIS),
864 adx 30 me.name, source_p->name, buf);
865     return;
866     }
867    
868     execute_callback(entering_umode_cb, client_p, source_p);
869    
870     /* find flags already set for user */
871     setflags = source_p->umodes;
872    
873     /* parse mode change string(s) */
874     for (p = &parv[2]; p && *p; p++)
875     {
876     for (m = *p; *m; m++)
877     {
878     switch (*m)
879     {
880     case '+':
881     what = MODE_ADD;
882     break;
883     case '-':
884     what = MODE_DEL;
885     break;
886     case 'o':
887     if (what == MODE_ADD)
888     {
889 michael 1219 if (IsServer(client_p) && !HasUMode(source_p, UMODE_OPER))
890 adx 30 {
891     ++Count.oper;
892     SetOper(source_p);
893     }
894     }
895     else
896     {
897     /* Only decrement the oper counts if an oper to begin with
898     * found by Pat Szuta, Perly , perly@xnet.com
899     */
900 michael 1219 if (!HasUMode(source_p, UMODE_OPER))
901 adx 30 break;
902    
903     ClearOper(source_p);
904     Count.oper--;
905    
906     if (MyConnect(source_p))
907     {
908     dlink_node *dm;
909    
910 michael 1632 detach_conf(source_p, CONF_OPER);
911 michael 1219 ClrOFlag(source_p);
912     DelUMode(source_p, ConfigFileEntry.oper_only_umodes);
913 adx 30
914     if ((dm = dlinkFindDelete(&oper_list, source_p)) != NULL)
915     free_dlink_node(dm);
916     }
917     }
918    
919     break;
920    
921     /* we may not get these,
922     * but they shouldnt be in default
923     */
924 michael 1158 case 'r':
925 adx 30 case ' ' :
926     case '\n':
927     case '\r':
928     case '\t':
929     break;
930    
931     default:
932     if ((flag = user_modes[(unsigned char)*m]))
933     {
934 michael 1219 if (MyConnect(source_p) && !HasUMode(source_p, UMODE_OPER) &&
935 adx 30 (ConfigFileEntry.oper_only_umodes & flag))
936     {
937     badflag = 1;
938     }
939     else
940 michael 56 execute_callback(umode_cb, client_p, source_p, what, flag);
941 adx 30 }
942     else
943     {
944     if (MyConnect(source_p))
945     badflag = 1;
946     }
947    
948     break;
949     }
950     }
951     }
952    
953     if (badflag)
954 michael 1834 sendto_one(source_p, form_str(ERR_UMODEUNKNOWNFLAG),
955 adx 30 me.name, source_p->name);
956    
957 michael 1219 if (HasUMode(source_p, UMODE_NCHANGE) && !HasOFlag(source_p, OPER_FLAG_N))
958 adx 30 {
959 michael 1219 sendto_one(source_p, ":%s NOTICE %s :*** You have no nchange flag;",
960 adx 30 me.name, source_p->name);
961 michael 1219 DelUMode(source_p, UMODE_NCHANGE);
962 adx 30 }
963    
964 michael 1219 if (MyConnect(source_p) && HasUMode(source_p, UMODE_ADMIN) &&
965 michael 1294 !HasOFlag(source_p, OPER_FLAG_ADMIN))
966 adx 30 {
967     sendto_one(source_p, ":%s NOTICE %s :*** You have no admin flag;",
968     me.name, source_p->name);
969 michael 1219 DelUMode(source_p, UMODE_ADMIN);
970 adx 30 }
971    
972 michael 1219 if (!(setflags & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
973 adx 30 ++Count.invisi;
974 michael 1219 if ((setflags & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
975 adx 30 --Count.invisi;
976    
977 michael 56 /*
978     * compare new flags with old flags and send string which
979 adx 30 * will cause servers to update correctly.
980     */
981     send_umode_out(client_p, source_p, setflags);
982     }
983    
984     /* send_umode()
985     * send the MODE string for user (user) to connection client_p
986     * -avalon
987 db 849 *
988     * inputs - client_p
989     * - source_p
990     * - int old
991     * - sendmask mask of modes to send
992     * - suplied umode_buf
993     * output - NONE
994 adx 30 */
995     void
996     send_umode(struct Client *client_p, struct Client *source_p,
997     unsigned int old, unsigned int sendmask, char *umode_buf)
998     {
999 michael 1013 char *m = umode_buf;
1000 adx 30 int what = 0;
1001     unsigned int i;
1002     unsigned int flag;
1003    
1004 michael 56 /*
1005     * build a string in umode_buf to represent the change in the user's
1006 adx 30 * mode between the new (source_p->umodes) and 'old'.
1007     */
1008     for (i = 0; i < 128; i++)
1009     {
1010     flag = user_modes[i];
1011     if (!flag)
1012     continue;
1013    
1014     if (MyClient(source_p) && !(flag & sendmask))
1015     continue;
1016    
1017 michael 1219 if ((flag & old) && !HasUMode(source_p, flag))
1018 adx 30 {
1019     if (what == MODE_DEL)
1020     *m++ = (char)i;
1021     else
1022     {
1023     what = MODE_DEL;
1024     *m++ = '-';
1025     *m++ = (char)i;
1026     }
1027     }
1028 michael 1219 else if (!(flag & old) && HasUMode(source_p, flag))
1029 adx 30 {
1030     if (what == MODE_ADD)
1031     *m++ = (char)i;
1032     else
1033     {
1034     what = MODE_ADD;
1035     *m++ = '+';
1036     *m++ = (char)i;
1037     }
1038     }
1039     }
1040    
1041     *m = '\0';
1042    
1043     if (*umode_buf && client_p)
1044 michael 528 sendto_one(client_p, ":%s!%s@%s MODE %s :%s",
1045     source_p->name, source_p->username,
1046     source_p->host, source_p->name, umode_buf);
1047 adx 30 }
1048    
1049     /* send_umode_out()
1050     *
1051     * inputs -
1052     * output - NONE
1053     * side effects - Only send ubuf out to servers that know about this client
1054     */
1055     void
1056     send_umode_out(struct Client *client_p, struct Client *source_p,
1057     unsigned int old)
1058     {
1059 michael 573 char buf[IRCD_BUFSIZE] = { '\0' };
1060 adx 30 dlink_node *ptr = NULL;
1061    
1062 michael 1294 send_umode(NULL, source_p, old, SEND_UMODES, buf);
1063 adx 30
1064 michael 573 if (buf[0])
1065 adx 30 {
1066     DLINK_FOREACH(ptr, serv_list.head)
1067     {
1068     struct Client *target_p = ptr->data;
1069    
1070     if ((target_p != client_p) && (target_p != source_p))
1071 michael 885 sendto_one(target_p, ":%s MODE %s :%s",
1072     ID_or_name(source_p, target_p),
1073     ID_or_name(source_p, target_p), buf);
1074 adx 30 }
1075     }
1076    
1077     if (client_p && MyClient(client_p))
1078     send_umode(client_p, source_p, old, 0xffffffff, buf);
1079     }
1080    
1081 michael 1819 void
1082     user_set_hostmask(struct Client *target_p, const char *hostname)
1083     {
1084     if (!valid_hostname(hostname))
1085     return;
1086    
1087     if (IsUserHostIp(target_p))
1088     delete_user_host(target_p->username, target_p->host, !MyConnect(target_p));
1089    
1090     strlcpy(target_p->host, hostname, sizeof(target_p->host));
1091     SetIPSpoof(target_p);
1092    
1093     add_user_host(target_p->username, target_p->host, !MyConnect(target_p));
1094     SetUserHost(target_p);
1095    
1096     if (MyClient(target_p))
1097     clear_ban_cache_client(target_p);
1098     }
1099    
1100 adx 30 /* user_welcome()
1101     *
1102     * inputs - client pointer to client to welcome
1103     * output - NONE
1104     * side effects -
1105     */
1106     static void
1107     user_welcome(struct Client *source_p)
1108     {
1109     #if defined(__TIME__) && defined(__DATE__)
1110     static const char built_date[] = __DATE__ " at " __TIME__;
1111     #else
1112     static const char built_date[] = "unknown";
1113     #endif
1114    
1115     #ifdef HAVE_LIBCRYPTO
1116     if (source_p->localClient->fd.ssl != NULL)
1117     sendto_one(source_p, ":%s NOTICE %s :*** Connected securely via %s",
1118     me.name, source_p->name,
1119     ssl_get_cipher(source_p->localClient->fd.ssl));
1120     #endif
1121    
1122 michael 1834 sendto_one(source_p, form_str(RPL_WELCOME), me.name, source_p->name,
1123 adx 30 ServerInfo.network_name, source_p->name);
1124 michael 1834 sendto_one(source_p, form_str(RPL_YOURHOST), me.name, source_p->name,
1125 michael 56 get_listener_name(source_p->localClient->listener), ircd_version);
1126 michael 1834 sendto_one(source_p, form_str(RPL_CREATED),
1127 michael 56 me.name, source_p->name, built_date);
1128 michael 1834 sendto_one(source_p, form_str(RPL_MYINFO),
1129 adx 30 me.name, source_p->name, me.name, ircd_version, umode_buffer);
1130     show_isupport(source_p);
1131    
1132     if (source_p->id[0] != '\0')
1133 michael 1834 sendto_one(source_p, form_str(RPL_YOURID), me.name,
1134 adx 30 source_p->name, source_p->id);
1135    
1136     show_lusers(source_p);
1137    
1138     if (ConfigFileEntry.short_motd)
1139     {
1140 michael 1115 sendto_one(source_p, ":%s NOTICE %s :*** Notice -- motd was last changed at %s",
1141     me.name, source_p->name, ConfigFileEntry.motd.lastChangedDate);
1142 adx 30 sendto_one(source_p,
1143 michael 1115 ":%s NOTICE %s :*** Notice -- Please read the motd if you haven't "
1144     "read it", me.name, source_p->name);
1145 michael 1834 sendto_one(source_p, form_str(RPL_MOTDSTART),
1146 adx 30 me.name, source_p->name, me.name);
1147 michael 1834 sendto_one(source_p, form_str(RPL_MOTD),
1148 adx 30 me.name, source_p->name,
1149     "*** This is the short motd ***");
1150 michael 1834 sendto_one(source_p, form_str(RPL_ENDOFMOTD),
1151 adx 30 me.name, source_p->name);
1152     }
1153     else
1154     send_message_file(source_p, &ConfigFileEntry.motd);
1155     }
1156    
1157     /* check_xline()
1158     *
1159     * inputs - pointer to client to test
1160     * outupt - 1 if exiting 0 if ok
1161     * side effects -
1162     */
1163     static int
1164     check_xline(struct Client *source_p)
1165     {
1166 michael 1632 struct MaskItem *conf = NULL;
1167 michael 592 const char *reason = NULL;
1168 adx 30
1169 michael 1632 if ((conf = find_matching_name_conf(CONF_XLINE, source_p->info, NULL, NULL, 0)) ||
1170     (conf = find_matching_name_conf(CONF_RXLINE, source_p->info, NULL, NULL, 0)))
1171 adx 30 {
1172 michael 1632 ++conf->count;
1173 adx 30
1174 michael 1632 if (conf->reason != NULL)
1175     reason = conf->reason;
1176 adx 30 else
1177     reason = "No Reason";
1178    
1179 michael 1618 sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
1180 michael 56 "X-line Rejecting [%s] [%s], user %s [%s]",
1181     source_p->info, reason,
1182     get_client_name(source_p, HIDE_IP),
1183     source_p->sockhost);
1184 adx 30
1185 michael 896 ++ServerStats.is_ref;
1186 michael 1549 exit_client(source_p, &me, "Bad user info");
1187 adx 30 return 1;
1188     }
1189    
1190     return 0;
1191     }
1192    
1193     /* oper_up()
1194     *
1195     * inputs - pointer to given client to oper
1196     * output - NONE
1197 michael 1632 * side effects - Blindly opers up given source_p, using conf info
1198 adx 30 * all checks on passwords have already been done.
1199     * This could also be used by rsa oper routines.
1200     */
1201     void
1202     oper_up(struct Client *source_p)
1203     {
1204 michael 1469 const unsigned int old = source_p->umodes;
1205 michael 1644 const struct MaskItem *conf = source_p->localClient->confs.head->data;
1206 adx 30
1207 michael 56 assert(source_p->localClient->confs.head);
1208    
1209     ++Count.oper;
1210 adx 30 SetOper(source_p);
1211    
1212 michael 1632 if (conf->modes)
1213     AddUMode(source_p, conf->modes);
1214 michael 56 else if (ConfigFileEntry.oper_umodes)
1215 michael 1219 AddUMode(source_p, ConfigFileEntry.oper_umodes);
1216 adx 30
1217 michael 1219 if (!(old & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
1218 michael 882 ++Count.invisi;
1219 michael 1219 if ((old & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
1220 michael 882 --Count.invisi;
1221    
1222 adx 30 assert(dlinkFind(&oper_list, source_p) == NULL);
1223     dlinkAdd(source_p, make_dlink_node(), &oper_list);
1224    
1225 michael 1632 AddOFlag(source_p, conf->port);
1226 adx 30
1227 michael 1294 if (HasOFlag(source_p, OPER_FLAG_ADMIN))
1228 michael 1158 AddUMode(source_p, UMODE_ADMIN);
1229 michael 1219 if (!HasOFlag(source_p, OPER_FLAG_N))
1230 michael 1158 DelUMode(source_p, UMODE_NCHANGE);
1231 adx 30
1232 michael 1618 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s is now an operator",
1233 michael 1458 get_oper_name(source_p));
1234 adx 30 send_umode_out(source_p, source_p, old);
1235 michael 1834 sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
1236 adx 30 }
1237    
1238 michael 573 static char new_uid[TOTALSIDUID + 1]; /* allow for \0 */
1239 adx 30
1240 michael 573 int
1241     valid_sid(const char *sid)
1242     {
1243     if (strlen(sid) == IRC_MAXSID)
1244     if (IsDigit(*sid))
1245 michael 582 if (IsAlNum(*(sid + 1)) && IsAlNum(*(sid + 2)))
1246 michael 573 return 1;
1247    
1248     return 0;
1249     }
1250    
1251 adx 30 /*
1252     * init_uid()
1253     *
1254     * inputs - NONE
1255     * output - NONE
1256     * side effects - new_uid is filled in with server id portion (sid)
1257     * (first 3 bytes) or defaulted to 'A'.
1258     * Rest is filled in with 'A'
1259     */
1260     void
1261     init_uid(void)
1262     {
1263 michael 1857 unsigned int i;
1264 adx 30
1265     memset(new_uid, 0, sizeof(new_uid));
1266    
1267 michael 1115 if (!EmptyString(ServerInfo.sid))
1268 michael 573 strlcpy(new_uid, ServerInfo.sid, sizeof(new_uid));
1269    
1270 michael 1115 for (i = 0; i < IRC_MAXSID; ++i)
1271 adx 30 if (new_uid[i] == '\0')
1272     new_uid[i] = 'A';
1273    
1274 michael 573 /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1275 adx 30 /* Yes nenolod, I have known it was off by one ever since I wrote it
1276     * But *JUST* for you, though, it really doesn't look as *pretty*
1277     * -Dianora
1278     */
1279 michael 573 memcpy(new_uid + IRC_MAXSID, "AAAAA@", IRC_MAXUID);
1280 adx 30
1281     entering_umode_cb = register_callback("entering_umode", NULL);
1282     umode_cb = register_callback("changing_umode", change_simple_umode);
1283     }
1284    
1285     /*
1286     * add_one_to_uid
1287     *
1288     * inputs - index number into new_uid
1289     * output - NONE
1290     * side effects - new_uid is incremented by one
1291     * note this is a recursive function
1292     */
1293     static void
1294     add_one_to_uid(int i)
1295     {
1296 michael 56 if (i != IRC_MAXSID) /* Not reached server SID portion yet? */
1297 adx 30 {
1298     if (new_uid[i] == 'Z')
1299     new_uid[i] = '0';
1300     else if (new_uid[i] == '9')
1301     {
1302     new_uid[i] = 'A';
1303     add_one_to_uid(i-1);
1304     }
1305 michael 573 else
1306     ++new_uid[i];
1307 adx 30 }
1308     else
1309     {
1310 michael 573 /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1311 adx 30 if (new_uid[i] == 'Z')
1312 michael 573 memcpy(new_uid + IRC_MAXSID, "AAAAAA", IRC_MAXUID);
1313 adx 30 else
1314 michael 573 ++new_uid[i];
1315 adx 30 }
1316     }
1317    
1318     /*
1319 michael 573 * uid_get
1320     *
1321     * inputs - struct Client *
1322     * output - new UID is returned to caller
1323     * side effects - new_uid is incremented by one.
1324     */
1325 michael 1080 static const char *
1326     uid_get(void)
1327 michael 573 {
1328     add_one_to_uid(TOTALSIDUID - 1); /* index from 0 */
1329     return new_uid;
1330     }
1331    
1332     /*
1333 adx 30 * init_isupport()
1334     *
1335     * input - NONE
1336     * output - NONE
1337     * side effects - Must be called before isupport is enabled
1338     */
1339     void
1340     init_isupport(void)
1341     {
1342     isupportFile = init_MessageLine();
1343    
1344     add_isupport("CALLERID", NULL, -1);
1345     add_isupport("CASEMAPPING", CASEMAP, -1);
1346 adx 716 add_isupport("DEAF", "D", -1);
1347 adx 30 add_isupport("KICKLEN", NULL, KICKLEN);
1348     add_isupport("MODES", NULL, MAXMODEPARAMS);
1349     #ifdef HALFOPS
1350     add_isupport("PREFIX", "(ohv)@%+", -1);
1351     add_isupport("STATUSMSG", "@%+", -1);
1352     #else
1353     add_isupport("PREFIX", "(ov)@+", -1);
1354     add_isupport("STATUSMSG", "@+", -1);
1355     #endif
1356     }
1357    
1358     /*
1359     * add_isupport()
1360     *
1361     * input - name of supported function
1362     * - options if any
1363     * - number if any
1364     * output - NONE
1365     * side effects - Each supported item must call this when activated
1366     */
1367     void
1368     add_isupport(const char *name, const char *options, int n)
1369     {
1370     dlink_node *ptr;
1371     struct Isupport *support;
1372    
1373     DLINK_FOREACH(ptr, support_list.head)
1374     {
1375     support = ptr->data;
1376     if (irccmp(support->name, name) == 0)
1377     {
1378     MyFree(support->name);
1379     MyFree(support->options);
1380     break;
1381     }
1382     }
1383    
1384     if (ptr == NULL)
1385     {
1386     support = MyMalloc(sizeof(*support));
1387     dlinkAddTail(support, &support->node, &support_list);
1388     }
1389    
1390 michael 1646 support->name = xstrdup(name);
1391 adx 30 if (options != NULL)
1392 michael 1646 support->options = xstrdup(options);
1393 adx 30 support->number = n;
1394    
1395     rebuild_isupport_message_line();
1396     }
1397    
1398     /*
1399     * delete_isupport()
1400     *
1401     * input - name of supported function
1402     * output - NONE
1403     * side effects - Each supported item must call this when deactivated
1404     */
1405     void
1406     delete_isupport(const char *name)
1407     {
1408     dlink_node *ptr;
1409     struct Isupport *support;
1410    
1411     DLINK_FOREACH(ptr, support_list.head)
1412     {
1413     support = ptr->data;
1414     if (irccmp(support->name, name) == 0)
1415     {
1416     dlinkDelete(ptr, &support_list);
1417     MyFree(support->name);
1418     MyFree(support->options);
1419     MyFree(support);
1420     break;
1421     }
1422     }
1423    
1424     rebuild_isupport_message_line();
1425     }
1426    
1427     /*
1428     * rebuild_isupport_message_line
1429     *
1430     * input - NONE
1431     * output - NONE
1432     * side effects - Destroy the isupport MessageFile lines, and rebuild.
1433     */
1434     void
1435     rebuild_isupport_message_line(void)
1436     {
1437     char isupportbuffer[IRCD_BUFSIZE];
1438     char *p = isupportbuffer;
1439     dlink_node *ptr = NULL;
1440     int n = 0;
1441     int tokens = 0;
1442     size_t len = 0;
1443 michael 1834 size_t reserve = strlen(me.name) + HOSTLEN + strlen(form_str(RPL_ISUPPORT));
1444 adx 30
1445     destroy_MessageLine(isupportFile);
1446    
1447     DLINK_FOREACH(ptr, support_list.head)
1448     {
1449     struct Isupport *support = ptr->data;
1450    
1451 michael 1793 p += (n = sprintf(p, "%s", support->name));
1452 adx 30 len += n;
1453    
1454     if (support->options != NULL)
1455     {
1456 michael 1793 p += (n = sprintf(p, "=%s", support->options));
1457 adx 30 len += n;
1458     }
1459    
1460     if (support->number > 0)
1461     {
1462 michael 1793 p += (n = sprintf(p, "=%d", support->number));
1463 adx 30 len += n;
1464     }
1465    
1466     *p++ = ' ';
1467     len++;
1468     *p = '\0';
1469    
1470     if (++tokens == (MAXPARA-2) || len >= (sizeof(isupportbuffer)-reserve))
1471     { /* arbritrary for now */
1472     if (*--p == ' ')
1473 michael 56 *p = '\0';
1474 adx 30
1475     addto_MessageLine(isupportFile, isupportbuffer);
1476     p = isupportbuffer;
1477     len = 0;
1478     n = tokens = 0;
1479     }
1480     }
1481    
1482     if (len != 0)
1483     {
1484     if (*--p == ' ')
1485     *p = '\0';
1486     addto_MessageLine(isupportFile, isupportbuffer);
1487     }
1488     }

Properties

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svn:eol-style native
svn:keywords Id Revision