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root/svn/ircd-hybrid/trunk/src/user.c
Revision: 2511
Committed: Sun Oct 27 18:56:53 2013 UTC (10 years, 5 months ago) by michael
Content type: text/x-csrc
Original Path: ircd-hybrid/trunk/src/s_user.c
File size: 40992 byte(s)
Log Message:
- Added usermode +W. Users connected via a webirc gateway get this
  mode set by servers.
- /WHOIS now shows whether a client is connected via a webirc
  gateway

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     static char umode_buffer[IRCD_BUFSIZE];
56    
57     static void user_welcome(struct Client *);
58 michael 1632 static void report_and_set_user_flags(struct Client *, const struct MaskItem *);
59 adx 30 static int check_xline(struct Client *);
60 michael 1080 static void introduce_client(struct Client *);
61     static const char *uid_get(void);
62 adx 30
63     /* Used for building up the isupport string,
64     * used with init_isupport, add_isupport, delete_isupport
65     */
66    
67 michael 2345 struct Isupport
68 adx 30 {
69     dlink_node node;
70     char *name;
71     char *options;
72     int number;
73     };
74    
75 michael 2159 static dlink_list support_list;
76     static dlink_list support_list_lines;
77 adx 30
78     /* memory is cheap. map 0-255 to equivalent mode */
79 michael 2022 const unsigned int user_modes[256] =
80 adx 30 {
81     /* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x0F */
82     /* 0x10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1F */
83     /* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2F */
84     /* 0x30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x3F */
85     0, /* @ */
86     0, /* A */
87     0, /* B */
88 michael 2185 0, /* C */
89 adx 30 UMODE_DEAF, /* D */
90     0, /* E */
91 michael 1976 UMODE_FARCONNECT, /* F */
92 adx 30 UMODE_SOFTCALLERID, /* G */
93 michael 1294 UMODE_HIDDEN, /* H */
94 adx 30 0, /* I */
95     0, /* J */
96     0, /* K */
97     0, /* L */
98     0, /* M */
99     0, /* N */
100     0, /* O */
101     0, /* P */
102     0, /* Q */
103 michael 1175 UMODE_REGONLY, /* R */
104 michael 2246 UMODE_SSL, /* S */
105 adx 30 0, /* T */
106     0, /* U */
107     0, /* V */
108 michael 2511 UMODE_WEBIRC, /* W */
109 adx 30 0, /* X */
110     0, /* Y */
111     0, /* Z 0x5A */
112 michael 2345 0, 0, 0, 0, 0, /* 0x5F */
113 adx 30 0, /* 0x60 */
114     UMODE_ADMIN, /* a */
115     UMODE_BOTS, /* b */
116     UMODE_CCONN, /* c */
117     UMODE_DEBUG, /* d */
118 michael 1818 UMODE_EXTERNAL, /* e */
119 adx 30 UMODE_FULL, /* f */
120     UMODE_CALLERID, /* g */
121     0, /* h */
122     UMODE_INVISIBLE, /* i */
123 michael 1158 UMODE_REJ, /* j */
124 adx 30 UMODE_SKILL, /* k */
125     UMODE_LOCOPS, /* l */
126     0, /* m */
127     UMODE_NCHANGE, /* n */
128     UMODE_OPER, /* o */
129     0, /* p */
130     0, /* q */
131 michael 1158 UMODE_REGISTERED, /* r */
132 adx 30 UMODE_SERVNOTICE, /* s */
133     0, /* t */
134     UMODE_UNAUTH, /* u */
135     0, /* v */
136     UMODE_WALLOP, /* w */
137 michael 2137 UMODE_HIDDENHOST, /* x */
138 adx 30 UMODE_SPY, /* y */
139     UMODE_OPERWALL, /* z 0x7A */
140     0,0,0,0,0, /* 0x7B - 0x7F */
141    
142     /* 0x80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x8F */
143     /* 0x90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x9F */
144     /* 0xA0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xAF */
145     /* 0xB0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xBF */
146     /* 0xC0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xCF */
147     /* 0xD0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xDF */
148     /* 0xE0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xEF */
149     /* 0xF0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xFF */
150     };
151    
152     void
153     assemble_umode_buffer(void)
154     {
155     unsigned int idx = 0;
156     char *umode_buffer_ptr = umode_buffer;
157    
158 michael 1013 for (; idx < (sizeof(user_modes) / sizeof(user_modes[0])); ++idx)
159 adx 30 if (user_modes[idx])
160     *umode_buffer_ptr++ = idx;
161    
162     *umode_buffer_ptr = '\0';
163     }
164    
165     /* show_lusers()
166     *
167     * inputs - pointer to client
168     * output - NONE
169     * side effects - display to client user counts etc.
170     */
171     void
172 michael 2345 show_lusers(struct Client *source_p)
173 adx 30 {
174     const char *from, *to;
175    
176     if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
177     {
178     from = me.id;
179     to = source_p->id;
180     }
181     else
182     {
183     from = me.name;
184     to = source_p->name;
185     }
186    
187 michael 1219 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
188 michael 1834 sendto_one(source_p, form_str(RPL_LUSERCLIENT),
189 adx 30 from, to, (Count.total-Count.invisi),
190     Count.invisi, dlink_list_length(&global_serv_list));
191     else
192 michael 1834 sendto_one(source_p, form_str(RPL_LUSERCLIENT), from, to,
193 michael 56 (Count.total-Count.invisi), Count.invisi, 1);
194 adx 30
195     if (Count.oper > 0)
196 michael 1834 sendto_one(source_p, form_str(RPL_LUSEROP),
197 michael 56 from, to, Count.oper);
198 adx 30
199     if (dlink_list_length(&unknown_list) > 0)
200 michael 1834 sendto_one(source_p, form_str(RPL_LUSERUNKNOWN),
201 michael 56 from, to, dlink_list_length(&unknown_list));
202 adx 30
203     if (dlink_list_length(&global_channel_list) > 0)
204 michael 1834 sendto_one(source_p, form_str(RPL_LUSERCHANNELS),
205 michael 56 from, to, dlink_list_length(&global_channel_list));
206 adx 30
207 michael 1219 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
208 adx 30 {
209 michael 1834 sendto_one(source_p, form_str(RPL_LUSERME),
210 michael 56 from, to, Count.local, Count.myserver);
211 michael 1834 sendto_one(source_p, form_str(RPL_LOCALUSERS),
212 michael 1836 from, to, Count.local, Count.max_loc);
213 adx 30 }
214     else
215     {
216 michael 1834 sendto_one(source_p, form_str(RPL_LUSERME),
217 michael 56 from, to, Count.total, 0);
218 michael 2345 sendto_one(source_p, form_str(RPL_LOCALUSERS),
219 michael 1836 from, to, Count.total, Count.max_tot);
220 adx 30 }
221    
222 michael 1834 sendto_one(source_p, form_str(RPL_GLOBALUSERS),
223 michael 1836 from, to, Count.total, Count.max_tot);
224 adx 30
225 michael 1219 if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
226 michael 1834 sendto_one(source_p, form_str(RPL_STATSCONN), from, to,
227 michael 1143 Count.max_loc_con, Count.max_loc_cli, Count.totalrestartcount);
228 adx 30
229 michael 1143 if (Count.local > Count.max_loc_cli)
230     Count.max_loc_cli = Count.local;
231 adx 30
232 michael 1143 if ((Count.local + Count.myserver) > Count.max_loc_con)
233 michael 2345 Count.max_loc_con = Count.local + Count.myserver;
234 adx 30 }
235    
236     /* show_isupport()
237     *
238     * inputs - pointer to client
239     * output - NONE
240     * side effects - display to client what we support (for them)
241     */
242     void
243 michael 2345 show_isupport(struct Client *source_p)
244 adx 30 {
245 michael 2159 const dlink_node *ptr = NULL;
246    
247     DLINK_FOREACH(ptr, support_list_lines.head)
248     sendto_one(source_p, form_str(RPL_ISUPPORT), me.name,
249     source_p->name, ptr->data);
250 adx 30 }
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 2314 if (!IsPingSent(source_p) && !source_p->localClient->random_ping)
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 michael 2314 if (!valid_hostname(source_p->host))
314 adx 30 {
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 michael 2314 if (!valid_username(source_p->username, 1))
397 adx 30 {
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     if (ConfigFileEntry.invisible_on_connect)
428 michael 159 {
429 michael 1219 AddUMode(source_p, UMODE_INVISIBLE);
430 michael 980 ++Count.invisi;
431 michael 159 }
432 adx 30
433 michael 2314 if (++Count.local > Count.max_loc)
434 adx 30 {
435     Count.max_loc = Count.local;
436    
437     if (!(Count.max_loc % 10))
438 michael 1618 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
439     "New Max Local Clients: %d",
440 adx 30 Count.max_loc);
441     }
442    
443     /* Increment our total user count here */
444     if (++Count.total > Count.max_tot)
445     Count.max_tot = Count.total;
446 michael 948 ++Count.totalrestartcount;
447 adx 30
448 michael 1080 assert(source_p->servptr == &me);
449     SetClient(source_p);
450     dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
451    
452 adx 30 source_p->localClient->allow_read = MAX_FLOOD_BURST;
453    
454 michael 1125 assert(dlinkFind(&unknown_list, source_p));
455 michael 1013
456 michael 1126 dlink_move_node(&source_p->localClient->lclient_node,
457     &unknown_list, &local_client_list);
458 adx 30
459     user_welcome(source_p);
460     add_user_host(source_p->username, source_p->host, 0);
461     SetUserHost(source_p);
462    
463 michael 1080 introduce_client(source_p);
464 adx 30 }
465    
466     /* register_remote_user()
467     *
468 michael 1080 * inputs - source_p remote or directly connected client
469 adx 30 * - username to register as
470     * - host name to register as
471     * - server name
472     * - realname (gecos)
473     * output - NONE
474     * side effects - This function is called when a remote client
475     * is introduced by a server.
476     */
477     void
478 michael 1080 register_remote_user(struct Client *source_p,
479 michael 56 const char *username, const char *host, const char *server,
480     const char *realname)
481 adx 30 {
482 michael 56 struct Client *target_p = NULL;
483 adx 30
484     assert(source_p != NULL);
485     assert(source_p->username != username);
486    
487 michael 2345 strlcpy(source_p->host, host, sizeof(source_p->host));
488 adx 30 strlcpy(source_p->username, username, sizeof(source_p->username));
489    
490     /*
491     * coming from another server, take the servers word for it
492     */
493 michael 1169 source_p->servptr = hash_find_server(server);
494 adx 30
495 michael 1618 /*
496     * Super GhostDetect:
497 adx 30 * If we can't find the server the user is supposed to be on,
498     * then simply blow the user away. -Taner
499     */
500     if (source_p->servptr == NULL)
501     {
502 michael 1618 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
503 adx 30 "No server %s for user %s[%s@%s] from %s",
504     server, source_p->name, source_p->username,
505     source_p->host, source_p->from->name);
506 michael 1080 kill_client(source_p->from, source_p, "%s (Server doesn't exist)", me.name);
507 adx 30
508 michael 1219 AddFlag(source_p, FLAGS_KILLED);
509 adx 30 exit_client(source_p, &me, "Ghosted Client");
510     return;
511     }
512    
513     if ((target_p = source_p->servptr) && target_p->from != source_p->from)
514     {
515 michael 1618 sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE,
516 adx 30 "Bad User [%s] :%s USER %s@%s %s, != %s[%s]",
517 michael 1080 source_p->from->name, source_p->name, source_p->username,
518 adx 30 source_p->host, source_p->servptr->name,
519     target_p->name, target_p->from->name);
520 michael 1080 kill_client(source_p->from, source_p,
521 adx 30 "%s (NICK from wrong direction (%s != %s))",
522     me.name, source_p->servptr->name, target_p->from->name);
523 michael 1219 AddFlag(source_p, FLAGS_KILLED);
524 adx 30 exit_client(source_p, &me, "USER server wrong direction");
525     return;
526     }
527    
528 michael 1167 /*
529     * If the nick has been introduced by a services server,
530     * make it a service as well.
531     */
532 michael 1219 if (HasFlag(source_p->servptr, FLAGS_SERVICE))
533     AddFlag(source_p, FLAGS_SERVICE);
534 michael 1167
535 michael 510 /* Increment our total user count here */
536     if (++Count.total > Count.max_tot)
537     Count.max_tot = Count.total;
538    
539 adx 30 SetClient(source_p);
540 michael 889 dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
541 adx 30 add_user_host(source_p->username, source_p->host, 1);
542     SetUserHost(source_p);
543    
544 michael 1976 if (HasFlag(source_p->servptr, FLAGS_EOB))
545     sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE,
546     "Client connecting at %s: %s (%s@%s) [%s] <%s>",
547     source_p->servptr->name,
548     source_p->name, source_p->username, source_p->host,
549     source_p->info, source_p->id);
550    
551 michael 1080 introduce_client(source_p);
552 adx 30 }
553    
554     /* introduce_client()
555     *
556 michael 1080 * inputs - source_p
557 adx 30 * output - NONE
558     * side effects - This common function introduces a client to the rest
559     * of the net, either from a local client connect or
560     * from a remote connect.
561     */
562     static void
563 michael 1080 introduce_client(struct Client *source_p)
564 adx 30 {
565 michael 56 dlink_node *server_node = NULL;
566 adx 30 static char ubuf[12];
567    
568     if (MyClient(source_p))
569     send_umode(source_p, source_p, 0, SEND_UMODES, ubuf);
570     else
571     send_umode(NULL, source_p, 0, SEND_UMODES, ubuf);
572    
573 michael 876 watch_check_hash(source_p, RPL_LOGON);
574    
575 adx 30 if (*ubuf == '\0')
576     {
577     ubuf[0] = '+';
578     ubuf[1] = '\0';
579     }
580    
581 michael 885 DLINK_FOREACH(server_node, serv_list.head)
582     {
583     struct Client *server = server_node->data;
584 adx 30
585 michael 1080 if (server == source_p->from)
586 michael 885 continue;
587    
588 michael 1196 if (IsCapable(server, CAP_SVS))
589     {
590     if (IsCapable(server, CAP_TS6) && HasID(source_p))
591 michael 1559 sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s %s :%s",
592 michael 1196 source_p->servptr->id,
593     source_p->name, source_p->hopcount+1,
594     (unsigned long)source_p->tsinfo,
595     ubuf, source_p->username, source_p->host,
596     (MyClient(source_p) && IsIPSpoof(source_p)) ?
597     "0" : source_p->sockhost, source_p->id,
598 michael 1559 source_p->svid,
599 michael 1196 source_p->info);
600     else
601 michael 1559 sendto_one(server, "NICK %s %d %lu %s %s %s %s %s :%s",
602 michael 1196 source_p->name, source_p->hopcount+1,
603     (unsigned long)source_p->tsinfo,
604     ubuf, source_p->username, source_p->host,
605 michael 1559 source_p->servptr->name, source_p->svid,
606 michael 1196 source_p->info);
607    
608     }
609 adx 30 else
610 michael 1196 {
611     if (IsCapable(server, CAP_TS6) && HasID(source_p))
612     sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s :%s",
613     source_p->servptr->id,
614     source_p->name, source_p->hopcount+1,
615     (unsigned long)source_p->tsinfo,
616     ubuf, source_p->username, source_p->host,
617     (MyClient(source_p) && IsIPSpoof(source_p)) ?
618     "0" : source_p->sockhost, source_p->id, source_p->info);
619     else
620     sendto_one(server, "NICK %s %d %lu %s %s %s %s :%s",
621     source_p->name, source_p->hopcount+1,
622     (unsigned long)source_p->tsinfo,
623     ubuf, source_p->username, source_p->host,
624     source_p->servptr->name, source_p->info);
625     }
626 michael 2231
627     if (!EmptyString(source_p->certfp))
628     sendto_one(server, ":%s CERTFP %s", ID(source_p), source_p->certfp);
629 adx 30 }
630     }
631    
632     /* valid_hostname()
633     *
634     * Inputs - pointer to hostname
635     * Output - 1 if valid, 0 if not
636     * Side effects - check hostname for validity
637     *
638     * NOTE: this doesn't allow a hostname to begin with a dot and
639     * will not allow more dots than chars.
640     */
641     int
642     valid_hostname(const char *hostname)
643     {
644     const char *p = hostname;
645    
646     assert(p != NULL);
647    
648 michael 2352 if (EmptyString(p) || *p == '.' || *p == ':')
649 michael 56 return 0;
650 adx 30
651 michael 1080 for (; *p; ++p)
652 adx 30 if (!IsHostChar(*p))
653 michael 56 return 0;
654 adx 30
655 michael 1795 return p - hostname <= HOSTLEN;
656 adx 30 }
657    
658     /* valid_username()
659     *
660     * Inputs - pointer to user
661     * Output - 1 if valid, 0 if not
662     * Side effects - check username for validity
663     *
664     * Absolutely always reject any '*' '!' '?' '@' in an user name
665     * reject any odd control characters names.
666     * Allow '.' in username to allow for "first.last"
667     * style of username
668     */
669     int
670 michael 2069 valid_username(const char *username, const int local)
671 adx 30 {
672     int dots = 0;
673     const char *p = username;
674    
675     assert(p != NULL);
676    
677 michael 1080 if (*p == '~')
678 adx 30 ++p;
679    
680 michael 2067 /*
681     * Reject usernames that don't start with an alphanum
682 adx 30 * i.e. reject jokers who have '-@somehost' or '.@somehost'
683     * or "-hi-@somehost", "h-----@somehost" would still be accepted.
684     */
685     if (!IsAlNum(*p))
686 michael 56 return 0;
687 adx 30
688 michael 2067 if (local)
689 adx 30 {
690 michael 2067 while (*++p)
691 adx 30 {
692 michael 2067 if ((*p == '.') && ConfigFileEntry.dots_in_ident)
693     {
694     if (++dots > ConfigFileEntry.dots_in_ident)
695     return 0;
696     if (!IsUserChar(*(p + 1)))
697     return 0;
698     }
699     else if (!IsUserChar(*p))
700 michael 56 return 0;
701 adx 30 }
702     }
703 michael 2067 else
704     {
705     while (*++p)
706     if (!IsUserChar(*p))
707     return 0;
708     }
709 adx 30
710 michael 2067 return p - username <= USERLEN;;
711 adx 30 }
712    
713 michael 1165 /* clean_nick_name()
714     *
715     * input - nickname
716     * - whether it's a local nick (1) or remote (0)
717     * output - none
718     * side effects - walks through the nickname, returning 0 if erroneous
719     */
720     int
721     valid_nickname(const char *nickname, const int local)
722     {
723     const char *p = nickname;
724     assert(nickname && *nickname);
725    
726     /* nicks can't start with a digit or - or be 0 length */
727     /* This closer duplicates behaviour of hybrid-6 */
728     if (*p == '-' || (IsDigit(*p) && local) || *p == '\0')
729     return 0;
730    
731     for (; *p; ++p)
732     if (!IsNickChar(*p))
733     return 0;
734    
735 michael 1431 return p - nickname <= NICKLEN;
736 michael 1165 }
737    
738 adx 30 /* report_and_set_user_flags()
739     *
740     * inputs - pointer to source_p
741 michael 1632 * - pointer to conf for this user
742 adx 30 * output - NONE
743     * side effects - Report to user any special flags
744     * they are getting, and set them.
745     */
746     static void
747 michael 1632 report_and_set_user_flags(struct Client *source_p, const struct MaskItem *conf)
748 adx 30 {
749     /* If this user is being spoofed, tell them so */
750 michael 1632 if (IsConfDoSpoofIp(conf))
751 adx 30 sendto_one(source_p,
752 michael 2125 ":%s NOTICE %s :*** Spoofing your IP. Congrats.",
753 adx 30 me.name, source_p->name);
754    
755     /* If this user is in the exception class, Set it "E lined" */
756 michael 1632 if (IsConfExemptKline(conf))
757 adx 30 {
758     SetExemptKline(source_p);
759     sendto_one(source_p,
760 michael 2125 ":%s NOTICE %s :*** You are exempt from K/D/G lines. Congrats.",
761 adx 30 me.name, source_p->name);
762     }
763    
764 michael 2314 /*
765     * The else here is to make sure that G line exempt users
766 adx 30 * do not get noticed twice.
767     */
768 michael 1632 else if (IsConfExemptGline(conf))
769 adx 30 {
770     SetExemptGline(source_p);
771 michael 2125 sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from G lines. Congrats.",
772 adx 30 me.name, source_p->name);
773     }
774    
775 michael 1632 if (IsConfExemptResv(conf))
776 adx 30 {
777     SetExemptResv(source_p);
778 michael 2125 sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from resvs. Congrats.",
779 adx 30 me.name, source_p->name);
780     }
781    
782     /* If this user is exempt from user limits set it "F lined" */
783 michael 1632 if (IsConfExemptLimits(conf))
784 adx 30 {
785     SetExemptLimits(source_p);
786     sendto_one(source_p,
787 michael 2125 ":%s NOTICE %s :*** You are exempt from user limits. Congrats.",
788 adx 30 me.name,source_p->name);
789     }
790    
791 michael 1632 if (IsConfCanFlood(conf))
792 adx 30 {
793     SetCanFlood(source_p);
794     sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from flood "
795     "protection, aren't you fearsome.",
796     me.name, source_p->name);
797     }
798     }
799    
800     /* set_user_mode()
801     *
802     * added 15/10/91 By Darren Reed.
803     * parv[0] - sender
804     * parv[1] - username to change mode for
805     * parv[2] - modes to change
806     */
807     void
808     set_user_mode(struct Client *client_p, struct Client *source_p,
809 michael 1857 const int parc, char *parv[])
810 adx 30 {
811     unsigned int flag, setflags;
812     char **p, *m, buf[IRCD_BUFSIZE];
813     struct Client *target_p;
814     int what = MODE_ADD, badflag = 0, i;
815 michael 56
816     assert(!(parc < 2));
817    
818 adx 30 if ((target_p = find_person(client_p, parv[1])) == NULL)
819     {
820     if (MyConnect(source_p))
821 michael 1834 sendto_one(source_p, form_str(ERR_NOSUCHCHANNEL),
822 adx 30 me.name, source_p->name, parv[1]);
823     return;
824     }
825    
826 michael 1115 if (source_p != target_p)
827 adx 30 {
828 michael 1834 sendto_one(source_p, form_str(ERR_USERSDONTMATCH),
829 adx 30 me.name, source_p->name);
830     return;
831     }
832    
833     if (parc < 3)
834     {
835     m = buf;
836     *m++ = '+';
837    
838 michael 2314 for (i = 0; i < 128; ++i)
839 michael 1219 if (HasUMode(source_p, user_modes[i]))
840 adx 30 *m++ = (char)i;
841     *m = '\0';
842    
843 michael 1834 sendto_one(source_p, form_str(RPL_UMODEIS),
844 adx 30 me.name, source_p->name, buf);
845     return;
846     }
847    
848     /* find flags already set for user */
849     setflags = source_p->umodes;
850    
851     /* parse mode change string(s) */
852 michael 2314 for (p = &parv[2]; p && *p; ++p)
853 adx 30 {
854 michael 2314 for (m = *p; *m; ++m)
855 adx 30 {
856     switch (*m)
857     {
858     case '+':
859     what = MODE_ADD;
860     break;
861     case '-':
862     what = MODE_DEL;
863     break;
864     case 'o':
865     if (what == MODE_ADD)
866     {
867 michael 1219 if (IsServer(client_p) && !HasUMode(source_p, UMODE_OPER))
868 adx 30 {
869     ++Count.oper;
870     SetOper(source_p);
871     }
872     }
873     else
874     {
875 michael 1219 if (!HasUMode(source_p, UMODE_OPER))
876 adx 30 break;
877    
878     ClearOper(source_p);
879     Count.oper--;
880    
881     if (MyConnect(source_p))
882     {
883 michael 2314 dlink_node *dm = NULL;
884 adx 30
885 michael 1632 detach_conf(source_p, CONF_OPER);
886 michael 1219 ClrOFlag(source_p);
887     DelUMode(source_p, ConfigFileEntry.oper_only_umodes);
888 adx 30
889     if ((dm = dlinkFindDelete(&oper_list, source_p)) != NULL)
890     free_dlink_node(dm);
891     }
892     }
893    
894     break;
895    
896 michael 2246 case 'S': /* Only servers may set +S in a burst */
897 michael 2511 case 'W': /* Only servers may set +W in a burst */
898 michael 2025 case 'r': /* Only services may set +r */
899 michael 2137 case 'x': /* Only services may set +x */
900 adx 30 break;
901    
902     default:
903     if ((flag = user_modes[(unsigned char)*m]))
904     {
905 michael 1219 if (MyConnect(source_p) && !HasUMode(source_p, UMODE_OPER) &&
906 adx 30 (ConfigFileEntry.oper_only_umodes & flag))
907 michael 2022 badflag = 1;
908     else
909 adx 30 {
910 michael 2022 if (what == MODE_ADD)
911     AddUMode(source_p, flag);
912     else
913     DelUMode(source_p, flag);
914 adx 30 }
915     }
916 michael 2314 else if (MyConnect(source_p))
917     badflag = 1;
918 adx 30
919     break;
920     }
921     }
922     }
923    
924     if (badflag)
925 michael 1834 sendto_one(source_p, form_str(ERR_UMODEUNKNOWNFLAG),
926 adx 30 me.name, source_p->name);
927    
928 michael 1219 if (MyConnect(source_p) && HasUMode(source_p, UMODE_ADMIN) &&
929 michael 1294 !HasOFlag(source_p, OPER_FLAG_ADMIN))
930 adx 30 {
931     sendto_one(source_p, ":%s NOTICE %s :*** You have no admin flag;",
932     me.name, source_p->name);
933 michael 1219 DelUMode(source_p, UMODE_ADMIN);
934 adx 30 }
935    
936 michael 1219 if (!(setflags & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
937 adx 30 ++Count.invisi;
938 michael 1219 if ((setflags & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
939 adx 30 --Count.invisi;
940    
941 michael 56 /*
942     * compare new flags with old flags and send string which
943 adx 30 * will cause servers to update correctly.
944     */
945     send_umode_out(client_p, source_p, setflags);
946     }
947    
948     /* send_umode()
949     * send the MODE string for user (user) to connection client_p
950     * -avalon
951 db 849 *
952     * inputs - client_p
953     * - source_p
954     * - int old
955     * - sendmask mask of modes to send
956     * - suplied umode_buf
957     * output - NONE
958 adx 30 */
959     void
960     send_umode(struct Client *client_p, struct Client *source_p,
961     unsigned int old, unsigned int sendmask, char *umode_buf)
962     {
963 michael 1013 char *m = umode_buf;
964 adx 30 int what = 0;
965     unsigned int i;
966     unsigned int flag;
967    
968 michael 56 /*
969     * build a string in umode_buf to represent the change in the user's
970 adx 30 * mode between the new (source_p->umodes) and 'old'.
971     */
972 michael 2314 for (i = 0; i < 128; ++i)
973 adx 30 {
974     flag = user_modes[i];
975     if (!flag)
976     continue;
977    
978     if (MyClient(source_p) && !(flag & sendmask))
979     continue;
980    
981 michael 1219 if ((flag & old) && !HasUMode(source_p, flag))
982 adx 30 {
983     if (what == MODE_DEL)
984     *m++ = (char)i;
985     else
986     {
987     what = MODE_DEL;
988     *m++ = '-';
989     *m++ = (char)i;
990     }
991     }
992 michael 1219 else if (!(flag & old) && HasUMode(source_p, flag))
993 adx 30 {
994     if (what == MODE_ADD)
995     *m++ = (char)i;
996     else
997     {
998     what = MODE_ADD;
999     *m++ = '+';
1000     *m++ = (char)i;
1001     }
1002     }
1003     }
1004    
1005     *m = '\0';
1006    
1007     if (*umode_buf && client_p)
1008 michael 528 sendto_one(client_p, ":%s!%s@%s MODE %s :%s",
1009     source_p->name, source_p->username,
1010     source_p->host, source_p->name, umode_buf);
1011 adx 30 }
1012    
1013     /* send_umode_out()
1014     *
1015     * inputs -
1016     * output - NONE
1017     * side effects - Only send ubuf out to servers that know about this client
1018     */
1019     void
1020     send_umode_out(struct Client *client_p, struct Client *source_p,
1021     unsigned int old)
1022     {
1023 michael 573 char buf[IRCD_BUFSIZE] = { '\0' };
1024 adx 30 dlink_node *ptr = NULL;
1025    
1026 michael 1294 send_umode(NULL, source_p, old, SEND_UMODES, buf);
1027 adx 30
1028 michael 573 if (buf[0])
1029 adx 30 {
1030     DLINK_FOREACH(ptr, serv_list.head)
1031     {
1032     struct Client *target_p = ptr->data;
1033    
1034     if ((target_p != client_p) && (target_p != source_p))
1035 michael 885 sendto_one(target_p, ":%s MODE %s :%s",
1036     ID_or_name(source_p, target_p),
1037     ID_or_name(source_p, target_p), buf);
1038 adx 30 }
1039     }
1040    
1041     if (client_p && MyClient(client_p))
1042     send_umode(client_p, source_p, old, 0xffffffff, buf);
1043     }
1044    
1045 michael 1819 void
1046 michael 2137 user_set_hostmask(struct Client *target_p, const char *hostname, const int what)
1047 michael 1819 {
1048 michael 2141 dlink_node *ptr = NULL;
1049    
1050 michael 2145 if (!strcmp(target_p->host, hostname))
1051     return;
1052 michael 2141
1053 michael 2137 switch (what)
1054     {
1055     case MODE_ADD:
1056     AddUMode(target_p, UMODE_HIDDENHOST);
1057     AddFlag(target_p, FLAGS_IP_SPOOFING);
1058     break;
1059     case MODE_DEL:
1060     DelUMode(target_p, UMODE_HIDDENHOST);
1061 michael 2138
1062 michael 2141 if (!HasFlag(target_p, FLAGS_AUTH_SPOOF))
1063 michael 2138 DelFlag(target_p, FLAGS_IP_SPOOFING);
1064 michael 2137 break;
1065 michael 2145 default: return;
1066 michael 2137 }
1067    
1068 michael 2289 if (ConfigFileEntry.cycle_on_host_change)
1069     sendto_common_channels_local(target_p, 0, 0, ":%s!%s@%s QUIT :Changing hostname",
1070     target_p->name, target_p->username, target_p->host);
1071 michael 2145
1072     if (IsUserHostIp(target_p))
1073     delete_user_host(target_p->username, target_p->host, !MyConnect(target_p));
1074    
1075     strlcpy(target_p->host, hostname, sizeof(target_p->host));
1076    
1077     add_user_host(target_p->username, target_p->host, !MyConnect(target_p));
1078     SetUserHost(target_p);
1079    
1080 michael 1819 if (MyClient(target_p))
1081 michael 2137 {
1082     sendto_one(target_p, form_str(RPL_NEWHOSTIS), me.name,
1083 michael 2145 target_p->name, target_p->host);
1084 michael 1819 clear_ban_cache_client(target_p);
1085 michael 2137 }
1086 michael 2141
1087 michael 2283 if (!ConfigFileEntry.cycle_on_host_change)
1088     return;
1089    
1090 michael 2141 DLINK_FOREACH(ptr, target_p->channel.head)
1091     {
1092 michael 2143 char modebuf[4], nickbuf[NICKLEN * 3 + 3] = { '\0' };
1093 michael 2141 char *p = modebuf;
1094     int len = 0;
1095     const struct Membership *ms = ptr->data;
1096    
1097 michael 2283 if (has_member_flags(ms, CHFL_CHANOP))
1098     {
1099 michael 2141 *p++ = 'o';
1100     len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
1101     }
1102    
1103 michael 2283 if (has_member_flags(ms, CHFL_HALFOP))
1104     {
1105 michael 2141 *p++ = 'h';
1106     len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
1107     }
1108    
1109 michael 2283 if (has_member_flags(ms, CHFL_VOICE))
1110     {
1111 michael 2141 *p++ = 'v';
1112     len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
1113     }
1114    
1115     *p = '\0';
1116    
1117     sendto_channel_local_butone(target_p, 0, 0, ms->chptr, ":%s!%s@%s JOIN :%s",
1118     target_p->name, target_p->username, target_p->host,
1119     ms->chptr->chname);
1120     if (nickbuf[0])
1121     sendto_channel_local_butone(target_p, 0, 0, ms->chptr, ":%s MODE %s +%s %s",
1122     target_p->servptr->name, ms->chptr->chname,
1123     modebuf, nickbuf);
1124    
1125     }
1126    
1127     if (target_p->away[0])
1128     sendto_common_channels_local(target_p, 0, CAP_AWAY_NOTIFY,
1129     ":%s!%s@%s AWAY :%s",
1130     target_p->name, target_p->username,
1131     target_p->host, target_p->away);
1132 michael 1819 }
1133    
1134 adx 30 /* user_welcome()
1135     *
1136     * inputs - client pointer to client to welcome
1137     * output - NONE
1138     * side effects -
1139     */
1140     static void
1141     user_welcome(struct Client *source_p)
1142     {
1143     #if defined(__TIME__) && defined(__DATE__)
1144     static const char built_date[] = __DATE__ " at " __TIME__;
1145     #else
1146     static const char built_date[] = "unknown";
1147     #endif
1148    
1149     #ifdef HAVE_LIBCRYPTO
1150 michael 2246 if (HasFlag(source_p, FLAGS_SSL))
1151     {
1152     AddUMode(source_p, UMODE_SSL);
1153 adx 30 sendto_one(source_p, ":%s NOTICE %s :*** Connected securely via %s",
1154     me.name, source_p->name,
1155     ssl_get_cipher(source_p->localClient->fd.ssl));
1156 michael 2246 }
1157 adx 30 #endif
1158    
1159 michael 2345 sendto_one(source_p, form_str(RPL_WELCOME), me.name, source_p->name,
1160 michael 2097 ServerInfo.network_name, source_p->name);
1161 michael 1834 sendto_one(source_p, form_str(RPL_YOURHOST), me.name, source_p->name,
1162 michael 56 get_listener_name(source_p->localClient->listener), ircd_version);
1163 michael 1834 sendto_one(source_p, form_str(RPL_CREATED),
1164 michael 56 me.name, source_p->name, built_date);
1165 michael 1834 sendto_one(source_p, form_str(RPL_MYINFO),
1166 adx 30 me.name, source_p->name, me.name, ircd_version, umode_buffer);
1167     show_isupport(source_p);
1168    
1169     if (source_p->id[0] != '\0')
1170 michael 1834 sendto_one(source_p, form_str(RPL_YOURID), me.name,
1171 adx 30 source_p->name, source_p->id);
1172    
1173     show_lusers(source_p);
1174 michael 2150 motd_signon(source_p);
1175 adx 30 }
1176    
1177     /* check_xline()
1178     *
1179     * inputs - pointer to client to test
1180     * outupt - 1 if exiting 0 if ok
1181     * side effects -
1182     */
1183     static int
1184     check_xline(struct Client *source_p)
1185     {
1186 michael 1632 struct MaskItem *conf = NULL;
1187 michael 592 const char *reason = NULL;
1188 adx 30
1189 michael 1921 if ((conf = find_matching_name_conf(CONF_XLINE, source_p->info, NULL, NULL, 0)))
1190 adx 30 {
1191 michael 1632 ++conf->count;
1192 adx 30
1193 michael 1632 if (conf->reason != NULL)
1194     reason = conf->reason;
1195 adx 30 else
1196     reason = "No Reason";
1197    
1198 michael 1618 sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
1199 michael 56 "X-line Rejecting [%s] [%s], user %s [%s]",
1200     source_p->info, reason,
1201     get_client_name(source_p, HIDE_IP),
1202     source_p->sockhost);
1203 adx 30
1204 michael 896 ++ServerStats.is_ref;
1205 michael 1549 exit_client(source_p, &me, "Bad user info");
1206 adx 30 return 1;
1207     }
1208    
1209     return 0;
1210     }
1211    
1212     /* oper_up()
1213     *
1214     * inputs - pointer to given client to oper
1215     * output - NONE
1216 michael 1632 * side effects - Blindly opers up given source_p, using conf info
1217 adx 30 * all checks on passwords have already been done.
1218 michael 2345 * This could also be used by rsa oper routines.
1219 adx 30 */
1220     void
1221     oper_up(struct Client *source_p)
1222     {
1223 michael 1469 const unsigned int old = source_p->umodes;
1224 michael 1644 const struct MaskItem *conf = source_p->localClient->confs.head->data;
1225 adx 30
1226 michael 56 assert(source_p->localClient->confs.head);
1227    
1228     ++Count.oper;
1229 adx 30 SetOper(source_p);
1230    
1231 michael 1632 if (conf->modes)
1232     AddUMode(source_p, conf->modes);
1233 michael 56 else if (ConfigFileEntry.oper_umodes)
1234 michael 1219 AddUMode(source_p, ConfigFileEntry.oper_umodes);
1235 adx 30
1236 michael 1219 if (!(old & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
1237 michael 882 ++Count.invisi;
1238 michael 1219 if ((old & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
1239 michael 882 --Count.invisi;
1240    
1241 adx 30 assert(dlinkFind(&oper_list, source_p) == NULL);
1242     dlinkAdd(source_p, make_dlink_node(), &oper_list);
1243    
1244 michael 1632 AddOFlag(source_p, conf->port);
1245 adx 30
1246 michael 1294 if (HasOFlag(source_p, OPER_FLAG_ADMIN))
1247 michael 1158 AddUMode(source_p, UMODE_ADMIN);
1248 adx 30
1249 michael 1618 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s is now an operator",
1250 michael 1458 get_oper_name(source_p));
1251 adx 30 send_umode_out(source_p, source_p, old);
1252 michael 1834 sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
1253 adx 30 }
1254    
1255 michael 573 static char new_uid[TOTALSIDUID + 1]; /* allow for \0 */
1256 adx 30
1257 michael 573 int
1258     valid_sid(const char *sid)
1259     {
1260     if (strlen(sid) == IRC_MAXSID)
1261     if (IsDigit(*sid))
1262 michael 582 if (IsAlNum(*(sid + 1)) && IsAlNum(*(sid + 2)))
1263 michael 573 return 1;
1264    
1265     return 0;
1266     }
1267    
1268 adx 30 /*
1269     * init_uid()
1270 michael 2345 *
1271 adx 30 * inputs - NONE
1272     * output - NONE
1273     * side effects - new_uid is filled in with server id portion (sid)
1274     * (first 3 bytes) or defaulted to 'A'.
1275     * Rest is filled in with 'A'
1276     */
1277     void
1278     init_uid(void)
1279     {
1280 michael 1857 unsigned int i;
1281 adx 30
1282     memset(new_uid, 0, sizeof(new_uid));
1283    
1284 michael 1115 if (!EmptyString(ServerInfo.sid))
1285 michael 573 strlcpy(new_uid, ServerInfo.sid, sizeof(new_uid));
1286    
1287 michael 1115 for (i = 0; i < IRC_MAXSID; ++i)
1288 michael 2345 if (new_uid[i] == '\0')
1289 adx 30 new_uid[i] = 'A';
1290    
1291 michael 573 /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1292     memcpy(new_uid + IRC_MAXSID, "AAAAA@", IRC_MAXUID);
1293 adx 30 }
1294    
1295     /*
1296     * add_one_to_uid
1297     *
1298     * inputs - index number into new_uid
1299     * output - NONE
1300     * side effects - new_uid is incremented by one
1301     * note this is a recursive function
1302     */
1303     static void
1304     add_one_to_uid(int i)
1305     {
1306 michael 56 if (i != IRC_MAXSID) /* Not reached server SID portion yet? */
1307 adx 30 {
1308     if (new_uid[i] == 'Z')
1309     new_uid[i] = '0';
1310     else if (new_uid[i] == '9')
1311     {
1312     new_uid[i] = 'A';
1313     add_one_to_uid(i-1);
1314     }
1315 michael 573 else
1316     ++new_uid[i];
1317 adx 30 }
1318     else
1319     {
1320 michael 573 /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1321 adx 30 if (new_uid[i] == 'Z')
1322 michael 573 memcpy(new_uid + IRC_MAXSID, "AAAAAA", IRC_MAXUID);
1323 adx 30 else
1324 michael 573 ++new_uid[i];
1325 adx 30 }
1326     }
1327    
1328     /*
1329 michael 573 * uid_get
1330     *
1331     * inputs - struct Client *
1332     * output - new UID is returned to caller
1333     * side effects - new_uid is incremented by one.
1334     */
1335 michael 1080 static const char *
1336     uid_get(void)
1337 michael 573 {
1338     add_one_to_uid(TOTALSIDUID - 1); /* index from 0 */
1339     return new_uid;
1340     }
1341    
1342     /*
1343 adx 30 * init_isupport()
1344     *
1345     * input - NONE
1346     * output - NONE
1347     * side effects - Must be called before isupport is enabled
1348     */
1349     void
1350     init_isupport(void)
1351     {
1352     add_isupport("CALLERID", NULL, -1);
1353     add_isupport("CASEMAPPING", CASEMAP, -1);
1354 adx 716 add_isupport("DEAF", "D", -1);
1355 adx 30 add_isupport("KICKLEN", NULL, KICKLEN);
1356     add_isupport("MODES", NULL, MAXMODEPARAMS);
1357     #ifdef HALFOPS
1358     add_isupport("PREFIX", "(ohv)@%+", -1);
1359     add_isupport("STATUSMSG", "@%+", -1);
1360     #else
1361     add_isupport("PREFIX", "(ov)@+", -1);
1362     add_isupport("STATUSMSG", "@+", -1);
1363     #endif
1364 michael 2175 add_isupport("EXCEPTS", "e", -1);
1365     add_isupport("INVEX", "I", -1);
1366 adx 30 }
1367    
1368     /*
1369     * add_isupport()
1370     *
1371     * input - name of supported function
1372     * - options if any
1373     * - number if any
1374     * output - NONE
1375     * side effects - Each supported item must call this when activated
1376     */
1377     void
1378     add_isupport(const char *name, const char *options, int n)
1379     {
1380     dlink_node *ptr;
1381     struct Isupport *support;
1382    
1383     DLINK_FOREACH(ptr, support_list.head)
1384     {
1385     support = ptr->data;
1386     if (irccmp(support->name, name) == 0)
1387     {
1388     MyFree(support->name);
1389     MyFree(support->options);
1390     break;
1391     }
1392     }
1393    
1394     if (ptr == NULL)
1395     {
1396     support = MyMalloc(sizeof(*support));
1397     dlinkAddTail(support, &support->node, &support_list);
1398     }
1399    
1400 michael 1646 support->name = xstrdup(name);
1401 adx 30 if (options != NULL)
1402 michael 1646 support->options = xstrdup(options);
1403 adx 30 support->number = n;
1404    
1405     rebuild_isupport_message_line();
1406     }
1407    
1408     /*
1409     * delete_isupport()
1410     *
1411     * input - name of supported function
1412     * output - NONE
1413     * side effects - Each supported item must call this when deactivated
1414     */
1415     void
1416     delete_isupport(const char *name)
1417     {
1418     dlink_node *ptr;
1419     struct Isupport *support;
1420    
1421     DLINK_FOREACH(ptr, support_list.head)
1422     {
1423     support = ptr->data;
1424     if (irccmp(support->name, name) == 0)
1425     {
1426     dlinkDelete(ptr, &support_list);
1427     MyFree(support->name);
1428     MyFree(support->options);
1429     MyFree(support);
1430     break;
1431     }
1432     }
1433    
1434     rebuild_isupport_message_line();
1435     }
1436    
1437     /*
1438     * rebuild_isupport_message_line
1439     *
1440     * input - NONE
1441     * output - NONE
1442     * side effects - Destroy the isupport MessageFile lines, and rebuild.
1443     */
1444     void
1445     rebuild_isupport_message_line(void)
1446     {
1447     char isupportbuffer[IRCD_BUFSIZE];
1448     char *p = isupportbuffer;
1449 michael 2159 dlink_node *ptr = NULL, *ptr_next = NULL;
1450 adx 30 int n = 0;
1451     int tokens = 0;
1452     size_t len = 0;
1453 michael 1834 size_t reserve = strlen(me.name) + HOSTLEN + strlen(form_str(RPL_ISUPPORT));
1454 adx 30
1455 michael 2159 DLINK_FOREACH_SAFE(ptr, ptr_next, support_list_lines.head)
1456     {
1457     dlinkDelete(ptr, &support_list_lines);
1458     MyFree(ptr->data);
1459     free_dlink_node(ptr);
1460     }
1461 adx 30
1462     DLINK_FOREACH(ptr, support_list.head)
1463     {
1464     struct Isupport *support = ptr->data;
1465    
1466 michael 1793 p += (n = sprintf(p, "%s", support->name));
1467 adx 30 len += n;
1468    
1469     if (support->options != NULL)
1470     {
1471 michael 1793 p += (n = sprintf(p, "=%s", support->options));
1472 adx 30 len += n;
1473     }
1474    
1475     if (support->number > 0)
1476     {
1477 michael 1793 p += (n = sprintf(p, "=%d", support->number));
1478 adx 30 len += n;
1479     }
1480    
1481     *p++ = ' ';
1482     len++;
1483     *p = '\0';
1484    
1485     if (++tokens == (MAXPARA-2) || len >= (sizeof(isupportbuffer)-reserve))
1486     { /* arbritrary for now */
1487     if (*--p == ' ')
1488 michael 56 *p = '\0';
1489 adx 30
1490 michael 2159 dlinkAddTail(xstrdup(isupportbuffer), make_dlink_node(), &support_list_lines);
1491 adx 30 p = isupportbuffer;
1492     len = 0;
1493     n = tokens = 0;
1494     }
1495     }
1496    
1497     if (len != 0)
1498     {
1499     if (*--p == ' ')
1500     *p = '\0';
1501 michael 2159 dlinkAddTail(xstrdup(isupportbuffer), make_dlink_node(), &support_list_lines);
1502 adx 30 }
1503     }

Properties

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