1 |
/* |
2 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
3 |
* |
4 |
* Copyright (c) 1997-2014 ircd-hybrid development team |
5 |
* |
6 |
* This program is free software; you can redistribute it and/or modify |
7 |
* it under the terms of the GNU General Public License as published by |
8 |
* the Free Software Foundation; either version 2 of the License, or |
9 |
* (at your option) any later version. |
10 |
* |
11 |
* This program is distributed in the hope that it will be useful, |
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 |
* GNU General Public License for more details. |
15 |
* |
16 |
* You should have received a copy of the GNU General Public License |
17 |
* along with this program; if not, write to the Free Software |
18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
19 |
* USA |
20 |
*/ |
21 |
|
22 |
/*! \file s_user.c |
23 |
* \brief User related functions. |
24 |
* \version $Id$ |
25 |
*/ |
26 |
|
27 |
#include "stdinc.h" |
28 |
#include "list.h" |
29 |
#include "s_user.h" |
30 |
#include "s_misc.h" |
31 |
#include "channel.h" |
32 |
#include "channel_mode.h" |
33 |
#include "client.h" |
34 |
#include "hash.h" |
35 |
#include "irc_string.h" |
36 |
#include "ircd.h" |
37 |
#include "listener.h" |
38 |
#include "motd.h" |
39 |
#include "numeric.h" |
40 |
#include "conf.h" |
41 |
#include "log.h" |
42 |
#include "s_serv.h" |
43 |
#include "send.h" |
44 |
#include "supported.h" |
45 |
#include "memory.h" |
46 |
#include "packet.h" |
47 |
#include "rng_mt.h" |
48 |
#include "userhost.h" |
49 |
#include "s_misc.h" |
50 |
#include "parse.h" |
51 |
#include "watch.h" |
52 |
|
53 |
static char umode_buffer[IRCD_BUFSIZE]; |
54 |
|
55 |
static void user_welcome(struct Client *); |
56 |
static void report_and_set_user_flags(struct Client *, const struct MaskItem *); |
57 |
static int check_xline(struct Client *); |
58 |
static void introduce_client(struct Client *); |
59 |
static const char *uid_get(void); |
60 |
|
61 |
/* Used for building up the isupport string, |
62 |
* used with init_isupport, add_isupport, delete_isupport |
63 |
*/ |
64 |
|
65 |
struct Isupport |
66 |
{ |
67 |
dlink_node node; |
68 |
char *name; |
69 |
char *options; |
70 |
int number; |
71 |
}; |
72 |
|
73 |
static dlink_list support_list; |
74 |
static dlink_list support_list_lines; |
75 |
|
76 |
/* memory is cheap. map 0-255 to equivalent mode */ |
77 |
const unsigned int user_modes[256] = |
78 |
{ |
79 |
/* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x0F */ |
80 |
/* 0x10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1F */ |
81 |
/* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2F */ |
82 |
/* 0x30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x3F */ |
83 |
0, /* @ */ |
84 |
0, /* A */ |
85 |
0, /* B */ |
86 |
0, /* C */ |
87 |
UMODE_DEAF, /* D */ |
88 |
0, /* E */ |
89 |
UMODE_FARCONNECT, /* F */ |
90 |
UMODE_SOFTCALLERID, /* G */ |
91 |
UMODE_HIDDEN, /* H */ |
92 |
0, /* I */ |
93 |
0, /* J */ |
94 |
0, /* K */ |
95 |
0, /* L */ |
96 |
0, /* M */ |
97 |
0, /* N */ |
98 |
0, /* O */ |
99 |
0, /* P */ |
100 |
0, /* Q */ |
101 |
UMODE_REGONLY, /* R */ |
102 |
UMODE_SSL, /* S */ |
103 |
0, /* T */ |
104 |
0, /* U */ |
105 |
0, /* V */ |
106 |
UMODE_WEBIRC, /* W */ |
107 |
0, /* X */ |
108 |
0, /* Y */ |
109 |
0, /* Z 0x5A */ |
110 |
0, 0, 0, 0, 0, /* 0x5F */ |
111 |
0, /* 0x60 */ |
112 |
UMODE_ADMIN, /* a */ |
113 |
UMODE_BOTS, /* b */ |
114 |
UMODE_CCONN, /* c */ |
115 |
UMODE_DEBUG, /* d */ |
116 |
UMODE_EXTERNAL, /* e */ |
117 |
UMODE_FULL, /* f */ |
118 |
UMODE_CALLERID, /* g */ |
119 |
0, /* h */ |
120 |
UMODE_INVISIBLE, /* i */ |
121 |
UMODE_REJ, /* j */ |
122 |
UMODE_SKILL, /* k */ |
123 |
UMODE_LOCOPS, /* l */ |
124 |
0, /* m */ |
125 |
UMODE_NCHANGE, /* n */ |
126 |
UMODE_OPER, /* o */ |
127 |
0, /* p */ |
128 |
0, /* q */ |
129 |
UMODE_REGISTERED, /* r */ |
130 |
UMODE_SERVNOTICE, /* s */ |
131 |
0, /* t */ |
132 |
UMODE_UNAUTH, /* u */ |
133 |
0, /* v */ |
134 |
UMODE_WALLOP, /* w */ |
135 |
UMODE_HIDDENHOST, /* x */ |
136 |
UMODE_SPY, /* y */ |
137 |
UMODE_OPERWALL, /* z 0x7A */ |
138 |
0,0,0,0,0, /* 0x7B - 0x7F */ |
139 |
|
140 |
/* 0x80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x8F */ |
141 |
/* 0x90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x9F */ |
142 |
/* 0xA0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xAF */ |
143 |
/* 0xB0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xBF */ |
144 |
/* 0xC0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xCF */ |
145 |
/* 0xD0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xDF */ |
146 |
/* 0xE0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xEF */ |
147 |
/* 0xF0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xFF */ |
148 |
}; |
149 |
|
150 |
void |
151 |
assemble_umode_buffer(void) |
152 |
{ |
153 |
unsigned int idx = 0; |
154 |
char *umode_buffer_ptr = umode_buffer; |
155 |
|
156 |
for (; idx < (sizeof(user_modes) / sizeof(user_modes[0])); ++idx) |
157 |
if (user_modes[idx]) |
158 |
*umode_buffer_ptr++ = idx; |
159 |
|
160 |
*umode_buffer_ptr = '\0'; |
161 |
} |
162 |
|
163 |
/* show_lusers() |
164 |
* |
165 |
* inputs - pointer to client |
166 |
* output - NONE |
167 |
* side effects - display to client user counts etc. |
168 |
*/ |
169 |
void |
170 |
show_lusers(struct Client *source_p) |
171 |
{ |
172 |
if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) |
173 |
sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, (Count.total-Count.invisi), |
174 |
Count.invisi, dlink_list_length(&global_serv_list)); |
175 |
else |
176 |
sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, |
177 |
(Count.total-Count.invisi), Count.invisi, 1); |
178 |
|
179 |
if (Count.oper > 0) |
180 |
sendto_one_numeric(source_p, &me, RPL_LUSEROP, Count.oper); |
181 |
|
182 |
if (dlink_list_length(&unknown_list) > 0) |
183 |
sendto_one_numeric(source_p, &me, RPL_LUSERUNKNOWN, dlink_list_length(&unknown_list)); |
184 |
|
185 |
if (dlink_list_length(&global_channel_list) > 0) |
186 |
sendto_one_numeric(source_p, &me, RPL_LUSERCHANNELS, dlink_list_length(&global_channel_list)); |
187 |
|
188 |
if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) |
189 |
{ |
190 |
sendto_one_numeric(source_p, &me, RPL_LUSERME, Count.local, Count.myserver); |
191 |
sendto_one_numeric(source_p, &me, RPL_LOCALUSERS, Count.local, Count.max_loc); |
192 |
} |
193 |
else |
194 |
{ |
195 |
sendto_one_numeric(source_p, &me, RPL_LUSERME, Count.total, 0); |
196 |
sendto_one_numeric(source_p, &me, RPL_LOCALUSERS, Count.total, Count.max_tot); |
197 |
} |
198 |
|
199 |
sendto_one_numeric(source_p, &me, RPL_GLOBALUSERS, Count.total, Count.max_tot); |
200 |
|
201 |
if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) |
202 |
sendto_one_numeric(source_p, &me, RPL_STATSCONN, Count.max_loc_con, |
203 |
Count.max_loc_cli, Count.totalrestartcount); |
204 |
|
205 |
if (Count.local > Count.max_loc_cli) |
206 |
Count.max_loc_cli = Count.local; |
207 |
|
208 |
if ((Count.local + Count.myserver) > Count.max_loc_con) |
209 |
Count.max_loc_con = Count.local + Count.myserver; |
210 |
} |
211 |
|
212 |
/* show_isupport() |
213 |
* |
214 |
* inputs - pointer to client |
215 |
* output - NONE |
216 |
* side effects - display to client what we support (for them) |
217 |
*/ |
218 |
void |
219 |
show_isupport(struct Client *source_p) |
220 |
{ |
221 |
const dlink_node *ptr = NULL; |
222 |
|
223 |
DLINK_FOREACH(ptr, support_list_lines.head) |
224 |
sendto_one_numeric(source_p, &me, RPL_ISUPPORT, ptr->data); |
225 |
} |
226 |
|
227 |
/* |
228 |
** register_local_user |
229 |
** This function is called when both NICK and USER messages |
230 |
** have been accepted for the client, in whatever order. Only |
231 |
** after this, is the USER message propagated. |
232 |
** |
233 |
** NICK's must be propagated at once when received, although |
234 |
** it would be better to delay them too until full info is |
235 |
** available. Doing it is not so simple though, would have |
236 |
** to implement the following: |
237 |
** |
238 |
** (actually it has been implemented already for a while) -orabidoo |
239 |
** |
240 |
** 1) user telnets in and gives only "NICK foobar" and waits |
241 |
** 2) another user far away logs in normally with the nick |
242 |
** "foobar" (quite legal, as this server didn't propagate |
243 |
** it). |
244 |
** 3) now this server gets nick "foobar" from outside, but |
245 |
** has alread the same defined locally. Current server |
246 |
** would just issue "KILL foobar" to clean out dups. But, |
247 |
** this is not fair. It should actually request another |
248 |
** nick from local user or kill him/her... |
249 |
*/ |
250 |
void |
251 |
register_local_user(struct Client *source_p) |
252 |
{ |
253 |
const char *id = NULL; |
254 |
const struct MaskItem *conf = NULL; |
255 |
|
256 |
assert(source_p == source_p->from); |
257 |
assert(MyConnect(source_p)); |
258 |
assert(!source_p->localClient->registration); |
259 |
|
260 |
ClearCap(source_p, CAP_TS6); |
261 |
|
262 |
if (ConfigFileEntry.ping_cookie) |
263 |
{ |
264 |
if (!IsPingSent(source_p) && !source_p->localClient->random_ping) |
265 |
{ |
266 |
do |
267 |
source_p->localClient->random_ping = genrand_int32(); |
268 |
while (!source_p->localClient->random_ping); |
269 |
|
270 |
sendto_one(source_p, "PING :%u", |
271 |
source_p->localClient->random_ping); |
272 |
SetPingSent(source_p); |
273 |
return; |
274 |
} |
275 |
|
276 |
if (!HasPingCookie(source_p)) |
277 |
return; |
278 |
} |
279 |
|
280 |
source_p->localClient->last_privmsg = CurrentTime; |
281 |
/* Straight up the maximum rate of flooding... */ |
282 |
source_p->localClient->allow_read = MAX_FLOOD_BURST; |
283 |
|
284 |
if (!check_client(source_p)) |
285 |
return; |
286 |
|
287 |
if (!valid_hostname(source_p->host)) |
288 |
{ |
289 |
sendto_one_notice(source_p, &me, ":*** Notice -- You have an illegal " |
290 |
"character in your hostname"); |
291 |
strlcpy(source_p->host, source_p->sockhost, |
292 |
sizeof(source_p->host)); |
293 |
} |
294 |
|
295 |
conf = source_p->localClient->confs.head->data; |
296 |
|
297 |
if (!IsGotId(source_p)) |
298 |
{ |
299 |
char username[USERLEN + 1] = ""; |
300 |
const char *p = username; |
301 |
unsigned int i = 0; |
302 |
|
303 |
if (IsNeedIdentd(conf)) |
304 |
{ |
305 |
++ServerStats.is_ref; |
306 |
sendto_one_notice(source_p, &me, ":*** Notice -- You need to install " |
307 |
"identd to use this server"); |
308 |
exit_client(source_p, "Install identd"); |
309 |
return; |
310 |
} |
311 |
|
312 |
strlcpy(username, source_p->username, sizeof(username)); |
313 |
|
314 |
if (!IsNoTilde(conf)) |
315 |
source_p->username[i++] = '~'; |
316 |
|
317 |
for (; *p && i < USERLEN; ++p) |
318 |
if (*p != '[') |
319 |
source_p->username[i++] = *p; |
320 |
|
321 |
source_p->username[i] = '\0'; |
322 |
} |
323 |
|
324 |
/* password check */ |
325 |
if (!EmptyString(conf->passwd)) |
326 |
{ |
327 |
const char *pass = source_p->localClient->passwd; |
328 |
|
329 |
if (!match_conf_password(pass, conf)) |
330 |
{ |
331 |
++ServerStats.is_ref; |
332 |
|
333 |
sendto_one_numeric(source_p, &me, ERR_PASSWDMISMATCH); |
334 |
exit_client(source_p, "Bad Password"); |
335 |
return; |
336 |
} |
337 |
} |
338 |
|
339 |
/* don't free source_p->localClient->passwd here - it can be required |
340 |
* by masked /stats I if there are auth{} blocks with need_password = no; |
341 |
* --adx |
342 |
*/ |
343 |
|
344 |
/* report if user has &^>= etc. and set flags as needed in source_p */ |
345 |
report_and_set_user_flags(source_p, conf); |
346 |
|
347 |
if (IsDead(source_p)) |
348 |
return; |
349 |
|
350 |
/* Limit clients - |
351 |
* We want to be able to have servers and F-line clients |
352 |
* connect, so save room for "buffer" connections. |
353 |
* Smaller servers may want to decrease this, and it should |
354 |
* probably be just a percentage of the MAXCLIENTS... |
355 |
* -Taner |
356 |
*/ |
357 |
/* Except "F:" clients */ |
358 |
if ((Count.local >= ServerInfo.max_clients + MAX_BUFFER) || |
359 |
(Count.local >= ServerInfo.max_clients && !IsExemptLimits(source_p))) |
360 |
{ |
361 |
sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE, |
362 |
"Too many clients, rejecting %s[%s].", |
363 |
source_p->name, source_p->host); |
364 |
++ServerStats.is_ref; |
365 |
exit_client(source_p, "Sorry, server is full - try later"); |
366 |
return; |
367 |
} |
368 |
|
369 |
/* valid user name check */ |
370 |
if (!valid_username(source_p->username, 1)) |
371 |
{ |
372 |
char tmpstr2[IRCD_BUFSIZE] = ""; |
373 |
|
374 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
375 |
"Invalid username: %s (%s@%s)", |
376 |
source_p->name, source_p->username, source_p->host); |
377 |
++ServerStats.is_ref; |
378 |
snprintf(tmpstr2, sizeof(tmpstr2), "Invalid username [%s]", |
379 |
source_p->username); |
380 |
exit_client(source_p, tmpstr2); |
381 |
return; |
382 |
} |
383 |
|
384 |
if (check_xline(source_p)) |
385 |
return; |
386 |
|
387 |
while (hash_find_id((id = uid_get()))) |
388 |
; |
389 |
|
390 |
strlcpy(source_p->id, id, sizeof(source_p->id)); |
391 |
hash_add_id(source_p); |
392 |
|
393 |
sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE, |
394 |
"Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>", |
395 |
source_p->name, source_p->username, source_p->host, |
396 |
ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ? |
397 |
"255.255.255.255" : source_p->sockhost, |
398 |
get_client_class(&source_p->localClient->confs), |
399 |
source_p->info, source_p->id); |
400 |
|
401 |
if (ConfigFileEntry.invisible_on_connect) |
402 |
{ |
403 |
AddUMode(source_p, UMODE_INVISIBLE); |
404 |
++Count.invisi; |
405 |
} |
406 |
|
407 |
if (++Count.local > Count.max_loc) |
408 |
{ |
409 |
Count.max_loc = Count.local; |
410 |
|
411 |
if (!(Count.max_loc % 10)) |
412 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
413 |
"New Max Local Clients: %d", |
414 |
Count.max_loc); |
415 |
} |
416 |
|
417 |
/* Increment our total user count here */ |
418 |
if (++Count.total > Count.max_tot) |
419 |
Count.max_tot = Count.total; |
420 |
++Count.totalrestartcount; |
421 |
|
422 |
assert(source_p->servptr == &me); |
423 |
SetClient(source_p); |
424 |
dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list); |
425 |
|
426 |
source_p->localClient->allow_read = MAX_FLOOD_BURST; |
427 |
|
428 |
assert(dlinkFind(&unknown_list, source_p)); |
429 |
|
430 |
dlink_move_node(&source_p->localClient->lclient_node, |
431 |
&unknown_list, &local_client_list); |
432 |
|
433 |
user_welcome(source_p); |
434 |
add_user_host(source_p->username, source_p->host, 0); |
435 |
SetUserHost(source_p); |
436 |
|
437 |
introduce_client(source_p); |
438 |
} |
439 |
|
440 |
/* register_remote_user() |
441 |
* |
442 |
* inputs - source_p remote or directly connected client |
443 |
* - username to register as |
444 |
* - host name to register as |
445 |
* - server name |
446 |
* output - NONE |
447 |
* side effects - This function is called when a remote client |
448 |
* is introduced by a server. |
449 |
*/ |
450 |
void |
451 |
register_remote_user(struct Client *source_p, const char *username, |
452 |
const char *host, const char *server) |
453 |
{ |
454 |
struct Client *target_p = NULL; |
455 |
|
456 |
assert(source_p->username != username); |
457 |
|
458 |
strlcpy(source_p->host, host, sizeof(source_p->host)); |
459 |
strlcpy(source_p->username, username, sizeof(source_p->username)); |
460 |
|
461 |
/* |
462 |
* coming from another server, take the servers word for it |
463 |
*/ |
464 |
source_p->servptr = hash_find_server(server); |
465 |
|
466 |
/* |
467 |
* Super GhostDetect: |
468 |
* If we can't find the server the user is supposed to be on, |
469 |
* then simply blow the user away. -Taner |
470 |
*/ |
471 |
if (source_p->servptr == NULL) |
472 |
{ |
473 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
474 |
"No server %s for user %s[%s@%s] from %s", |
475 |
server, source_p->name, source_p->username, |
476 |
source_p->host, source_p->from->name); |
477 |
sendto_one(source_p->from, |
478 |
":%s KILL %s :%s (Ghosted, server %s doesn't exist)", |
479 |
me.id, source_p->id, me.name, server); |
480 |
|
481 |
AddFlag(source_p, FLAGS_KILLED); |
482 |
exit_client(source_p, "Ghosted Client"); |
483 |
return; |
484 |
} |
485 |
|
486 |
if ((target_p = source_p->servptr) && target_p->from != source_p->from) |
487 |
{ |
488 |
sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE, |
489 |
"Bad User [%s] :%s USER %s@%s %s, != %s[%s]", |
490 |
source_p->from->name, source_p->name, source_p->username, |
491 |
source_p->host, source_p->servptr->name, |
492 |
target_p->name, target_p->from->name); |
493 |
sendto_one(source_p->from, |
494 |
":%s KILL %s :%s (NICK from wrong direction (%s != %s))", |
495 |
me.id, source_p->id, me.name, source_p->servptr->name, |
496 |
target_p->from->name); |
497 |
|
498 |
AddFlag(source_p, FLAGS_KILLED); |
499 |
exit_client(source_p, "USER server wrong direction"); |
500 |
return; |
501 |
} |
502 |
|
503 |
/* |
504 |
* If the nick has been introduced by a services server, |
505 |
* make it a service as well. |
506 |
*/ |
507 |
if (HasFlag(source_p->servptr, FLAGS_SERVICE)) |
508 |
AddFlag(source_p, FLAGS_SERVICE); |
509 |
|
510 |
/* Increment our total user count here */ |
511 |
if (++Count.total > Count.max_tot) |
512 |
Count.max_tot = Count.total; |
513 |
|
514 |
SetClient(source_p); |
515 |
dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list); |
516 |
add_user_host(source_p->username, source_p->host, 1); |
517 |
SetUserHost(source_p); |
518 |
|
519 |
if (HasFlag(source_p->servptr, FLAGS_EOB)) |
520 |
sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE, |
521 |
"Client connecting at %s: %s (%s@%s) [%s] <%s>", |
522 |
source_p->servptr->name, |
523 |
source_p->name, source_p->username, source_p->host, |
524 |
source_p->info, source_p->id); |
525 |
|
526 |
introduce_client(source_p); |
527 |
} |
528 |
|
529 |
/* introduce_client() |
530 |
* |
531 |
* inputs - source_p |
532 |
* output - NONE |
533 |
* side effects - This common function introduces a client to the rest |
534 |
* of the net, either from a local client connect or |
535 |
* from a remote connect. |
536 |
*/ |
537 |
static void |
538 |
introduce_client(struct Client *source_p) |
539 |
{ |
540 |
dlink_node *ptr = NULL; |
541 |
char ubuf[IRCD_BUFSIZE] = ""; |
542 |
|
543 |
if (MyClient(source_p)) |
544 |
send_umode(source_p, source_p, 0, SEND_UMODES, ubuf); |
545 |
else |
546 |
send_umode(NULL, source_p, 0, SEND_UMODES, ubuf); |
547 |
|
548 |
watch_check_hash(source_p, RPL_LOGON); |
549 |
|
550 |
if (ubuf[0] == '\0') |
551 |
{ |
552 |
ubuf[0] = '+'; |
553 |
ubuf[1] = '\0'; |
554 |
} |
555 |
|
556 |
DLINK_FOREACH(ptr, serv_list.head) |
557 |
{ |
558 |
struct Client *server = ptr->data; |
559 |
|
560 |
if (server == source_p->from) |
561 |
continue; |
562 |
|
563 |
if (IsCapable(server, CAP_SVS)) |
564 |
sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s %s :%s", |
565 |
source_p->servptr->id, |
566 |
source_p->name, source_p->hopcount+1, |
567 |
(unsigned long)source_p->tsinfo, |
568 |
ubuf, source_p->username, source_p->host, |
569 |
(MyClient(source_p) && IsIPSpoof(source_p)) ? |
570 |
"0" : source_p->sockhost, source_p->id, |
571 |
source_p->svid, |
572 |
source_p->info); |
573 |
else |
574 |
sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s :%s", |
575 |
source_p->servptr->id, |
576 |
source_p->name, source_p->hopcount+1, |
577 |
(unsigned long)source_p->tsinfo, |
578 |
ubuf, source_p->username, source_p->host, |
579 |
(MyClient(source_p) && IsIPSpoof(source_p)) ? |
580 |
"0" : source_p->sockhost, source_p->id, source_p->info); |
581 |
|
582 |
if (!EmptyString(source_p->certfp)) |
583 |
sendto_one(server, ":%s CERTFP %s", source_p->id, source_p->certfp); |
584 |
} |
585 |
} |
586 |
|
587 |
/* valid_hostname() |
588 |
* |
589 |
* Inputs - pointer to hostname |
590 |
* Output - 1 if valid, 0 if not |
591 |
* Side effects - check hostname for validity |
592 |
* |
593 |
* NOTE: this doesn't allow a hostname to begin with a dot and |
594 |
* will not allow more dots than chars. |
595 |
*/ |
596 |
int |
597 |
valid_hostname(const char *hostname) |
598 |
{ |
599 |
const char *p = hostname; |
600 |
|
601 |
assert(p); |
602 |
|
603 |
if (EmptyString(p) || *p == '.' || *p == ':') |
604 |
return 0; |
605 |
|
606 |
for (; *p; ++p) |
607 |
if (!IsHostChar(*p)) |
608 |
return 0; |
609 |
|
610 |
return p - hostname <= HOSTLEN; |
611 |
} |
612 |
|
613 |
/* valid_username() |
614 |
* |
615 |
* Inputs - pointer to user |
616 |
* Output - 1 if valid, 0 if not |
617 |
* Side effects - check username for validity |
618 |
* |
619 |
* Absolutely always reject any '*' '!' '?' '@' in an user name |
620 |
* reject any odd control characters names. |
621 |
* Allow '.' in username to allow for "first.last" |
622 |
* style of username |
623 |
*/ |
624 |
int |
625 |
valid_username(const char *username, const int local) |
626 |
{ |
627 |
int dots = 0; |
628 |
const char *p = username; |
629 |
|
630 |
assert(p); |
631 |
|
632 |
if (*p == '~') |
633 |
++p; |
634 |
|
635 |
/* |
636 |
* Reject usernames that don't start with an alphanum |
637 |
* i.e. reject jokers who have '-@somehost' or '.@somehost' |
638 |
* or "-hi-@somehost", "h-----@somehost" would still be accepted. |
639 |
*/ |
640 |
if (!IsAlNum(*p)) |
641 |
return 0; |
642 |
|
643 |
if (local) |
644 |
{ |
645 |
while (*++p) |
646 |
{ |
647 |
if ((*p == '.') && ConfigFileEntry.dots_in_ident) |
648 |
{ |
649 |
if (++dots > ConfigFileEntry.dots_in_ident) |
650 |
return 0; |
651 |
if (!IsUserChar(*(p + 1))) |
652 |
return 0; |
653 |
} |
654 |
else if (!IsUserChar(*p)) |
655 |
return 0; |
656 |
} |
657 |
} |
658 |
else |
659 |
{ |
660 |
while (*++p) |
661 |
if (!IsUserChar(*p)) |
662 |
return 0; |
663 |
} |
664 |
|
665 |
return p - username <= USERLEN;; |
666 |
} |
667 |
|
668 |
/* clean_nick_name() |
669 |
* |
670 |
* input - nickname |
671 |
* - whether it's a local nick (1) or remote (0) |
672 |
* output - none |
673 |
* side effects - walks through the nickname, returning 0 if erroneous |
674 |
*/ |
675 |
int |
676 |
valid_nickname(const char *nickname, const int local) |
677 |
{ |
678 |
const char *p = nickname; |
679 |
assert(nickname && *nickname); |
680 |
|
681 |
assert(p); |
682 |
|
683 |
/* nicks can't start with a digit or - or be 0 length */ |
684 |
/* This closer duplicates behaviour of hybrid-6 */ |
685 |
if (*p == '-' || (IsDigit(*p) && local) || *p == '\0') |
686 |
return 0; |
687 |
|
688 |
for (; *p; ++p) |
689 |
if (!IsNickChar(*p)) |
690 |
return 0; |
691 |
|
692 |
return p - nickname <= NICKLEN; |
693 |
} |
694 |
|
695 |
/* report_and_set_user_flags() |
696 |
* |
697 |
* inputs - pointer to source_p |
698 |
* - pointer to conf for this user |
699 |
* output - NONE |
700 |
* side effects - Report to user any special flags |
701 |
* they are getting, and set them. |
702 |
*/ |
703 |
static void |
704 |
report_and_set_user_flags(struct Client *source_p, const struct MaskItem *conf) |
705 |
{ |
706 |
/* If this user is being spoofed, tell them so */ |
707 |
if (IsConfDoSpoofIp(conf)) |
708 |
sendto_one_notice(source_p, &me, ":*** Spoofing your IP. Congrats."); |
709 |
|
710 |
/* If this user is in the exception class, Set it "E lined" */ |
711 |
if (IsConfExemptKline(conf)) |
712 |
{ |
713 |
SetExemptKline(source_p); |
714 |
sendto_one_notice(source_p, &me, ":*** You are exempt from K/D/G lines. Congrats."); |
715 |
} |
716 |
|
717 |
/* |
718 |
* The else here is to make sure that G line exempt users |
719 |
* do not get noticed twice. |
720 |
*/ |
721 |
else if (IsConfExemptGline(conf)) |
722 |
{ |
723 |
SetExemptGline(source_p); |
724 |
sendto_one_notice(source_p, &me, ":*** You are exempt from G lines. Congrats."); |
725 |
} |
726 |
|
727 |
if (IsConfExemptResv(conf)) |
728 |
{ |
729 |
SetExemptResv(source_p); |
730 |
sendto_one_notice(source_p, &me, ":*** You are exempt from resvs. Congrats."); |
731 |
} |
732 |
|
733 |
/* If this user is exempt from user limits set it "F lined" */ |
734 |
if (IsConfExemptLimits(conf)) |
735 |
{ |
736 |
SetExemptLimits(source_p); |
737 |
sendto_one_notice(source_p, &me, ":*** You are exempt from user limits. Congrats."); |
738 |
} |
739 |
|
740 |
if (IsConfCanFlood(conf)) |
741 |
{ |
742 |
SetCanFlood(source_p); |
743 |
sendto_one_notice(source_p, &me, ":*** You are exempt from flood " |
744 |
"protection, aren't you fearsome."); |
745 |
} |
746 |
} |
747 |
|
748 |
/* set_user_mode() |
749 |
* |
750 |
* added 15/10/91 By Darren Reed. |
751 |
* parv[0] - command |
752 |
* parv[1] - username to change mode for |
753 |
* parv[2] - modes to change |
754 |
*/ |
755 |
void |
756 |
set_user_mode(struct Client *source_p, const int parc, char *parv[]) |
757 |
{ |
758 |
unsigned int flag, setflags; |
759 |
char **p, *m, buf[IRCD_BUFSIZE] = ""; |
760 |
struct Client *target_p; |
761 |
int what = MODE_ADD, badflag = 0, i; |
762 |
|
763 |
assert(!(parc < 2)); |
764 |
|
765 |
if ((target_p = find_person(source_p, parv[1])) == NULL) |
766 |
{ |
767 |
if (MyConnect(source_p)) |
768 |
sendto_one_numeric(source_p, &me, ERR_NOSUCHCHANNEL, parv[1]); |
769 |
return; |
770 |
} |
771 |
|
772 |
if (source_p != target_p) |
773 |
{ |
774 |
sendto_one_numeric(source_p, &me, ERR_USERSDONTMATCH); |
775 |
return; |
776 |
} |
777 |
|
778 |
if (parc < 3) |
779 |
{ |
780 |
m = buf; |
781 |
*m++ = '+'; |
782 |
|
783 |
for (i = 0; i < 128; ++i) |
784 |
if (HasUMode(source_p, user_modes[i])) |
785 |
*m++ = (char)i; |
786 |
*m = '\0'; |
787 |
|
788 |
sendto_one_numeric(source_p, &me, RPL_UMODEIS, buf); |
789 |
return; |
790 |
} |
791 |
|
792 |
/* find flags already set for user */ |
793 |
setflags = source_p->umodes; |
794 |
|
795 |
/* parse mode change string(s) */ |
796 |
for (p = &parv[2]; p && *p; ++p) |
797 |
{ |
798 |
for (m = *p; *m; ++m) |
799 |
{ |
800 |
switch (*m) |
801 |
{ |
802 |
case '+': |
803 |
what = MODE_ADD; |
804 |
break; |
805 |
case '-': |
806 |
what = MODE_DEL; |
807 |
break; |
808 |
case 'o': |
809 |
if (what == MODE_ADD) |
810 |
{ |
811 |
if (!MyConnect(source_p) && !HasUMode(source_p, UMODE_OPER)) |
812 |
{ |
813 |
++Count.oper; |
814 |
SetOper(source_p); |
815 |
} |
816 |
} |
817 |
else |
818 |
{ |
819 |
if (!HasUMode(source_p, UMODE_OPER)) |
820 |
break; |
821 |
|
822 |
ClearOper(source_p); |
823 |
Count.oper--; |
824 |
|
825 |
if (MyConnect(source_p)) |
826 |
{ |
827 |
dlink_node *ptr = NULL; |
828 |
|
829 |
detach_conf(source_p, CONF_OPER); |
830 |
ClrOFlag(source_p); |
831 |
DelUMode(source_p, ConfigFileEntry.oper_only_umodes); |
832 |
|
833 |
if ((ptr = dlinkFindDelete(&oper_list, source_p))) |
834 |
free_dlink_node(ptr); |
835 |
} |
836 |
} |
837 |
|
838 |
break; |
839 |
|
840 |
case 'S': /* Only servers may set +S in a burst */ |
841 |
case 'W': /* Only servers may set +W in a burst */ |
842 |
case 'r': /* Only services may set +r */ |
843 |
case 'x': /* Only services may set +x */ |
844 |
break; |
845 |
|
846 |
default: |
847 |
if ((flag = user_modes[(unsigned char)*m])) |
848 |
{ |
849 |
if (MyConnect(source_p) && !HasUMode(source_p, UMODE_OPER) && |
850 |
(ConfigFileEntry.oper_only_umodes & flag)) |
851 |
badflag = 1; |
852 |
else |
853 |
{ |
854 |
if (what == MODE_ADD) |
855 |
AddUMode(source_p, flag); |
856 |
else |
857 |
DelUMode(source_p, flag); |
858 |
} |
859 |
} |
860 |
else if (MyConnect(source_p)) |
861 |
badflag = 1; |
862 |
|
863 |
break; |
864 |
} |
865 |
} |
866 |
} |
867 |
|
868 |
if (badflag) |
869 |
sendto_one_numeric(source_p, &me, ERR_UMODEUNKNOWNFLAG); |
870 |
|
871 |
if (MyConnect(source_p) && HasUMode(source_p, UMODE_ADMIN) && |
872 |
!HasOFlag(source_p, OPER_FLAG_ADMIN)) |
873 |
{ |
874 |
sendto_one_notice(source_p, &me, ":*** You have no admin flag;"); |
875 |
DelUMode(source_p, UMODE_ADMIN); |
876 |
} |
877 |
|
878 |
if (!(setflags & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE)) |
879 |
++Count.invisi; |
880 |
if ((setflags & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE)) |
881 |
--Count.invisi; |
882 |
|
883 |
/* |
884 |
* compare new flags with old flags and send string which |
885 |
* will cause servers to update correctly. |
886 |
*/ |
887 |
send_umode_out(source_p, source_p, setflags); |
888 |
} |
889 |
|
890 |
/* send_umode() |
891 |
* send the MODE string for user (user) to connection client_p |
892 |
* -avalon |
893 |
* |
894 |
* inputs - client_p |
895 |
* - source_p |
896 |
* - int old |
897 |
* - sendmask mask of modes to send |
898 |
* - suplied umode_buf |
899 |
* output - NONE |
900 |
*/ |
901 |
void |
902 |
send_umode(struct Client *client_p, struct Client *source_p, |
903 |
unsigned int old, unsigned int sendmask, char *umode_buf) |
904 |
{ |
905 |
char *m = umode_buf; |
906 |
int what = 0; |
907 |
unsigned int i; |
908 |
unsigned int flag; |
909 |
|
910 |
/* |
911 |
* build a string in umode_buf to represent the change in the user's |
912 |
* mode between the new (source_p->umodes) and 'old'. |
913 |
*/ |
914 |
for (i = 0; i < 128; ++i) |
915 |
{ |
916 |
flag = user_modes[i]; |
917 |
if (!flag) |
918 |
continue; |
919 |
|
920 |
if (MyClient(source_p) && !(flag & sendmask)) |
921 |
continue; |
922 |
|
923 |
if ((flag & old) && !HasUMode(source_p, flag)) |
924 |
{ |
925 |
if (what == MODE_DEL) |
926 |
*m++ = (char)i; |
927 |
else |
928 |
{ |
929 |
what = MODE_DEL; |
930 |
*m++ = '-'; |
931 |
*m++ = (char)i; |
932 |
} |
933 |
} |
934 |
else if (!(flag & old) && HasUMode(source_p, flag)) |
935 |
{ |
936 |
if (what == MODE_ADD) |
937 |
*m++ = (char)i; |
938 |
else |
939 |
{ |
940 |
what = MODE_ADD; |
941 |
*m++ = '+'; |
942 |
*m++ = (char)i; |
943 |
} |
944 |
} |
945 |
} |
946 |
|
947 |
*m = '\0'; |
948 |
|
949 |
if (*umode_buf && client_p) |
950 |
sendto_one(client_p, ":%s!%s@%s MODE %s :%s", |
951 |
source_p->name, source_p->username, |
952 |
source_p->host, source_p->name, umode_buf); |
953 |
} |
954 |
|
955 |
/* send_umode_out() |
956 |
* |
957 |
* inputs - |
958 |
* output - NONE |
959 |
* side effects - Only send ubuf out to servers that know about this client |
960 |
*/ |
961 |
void |
962 |
send_umode_out(struct Client *client_p, struct Client *source_p, |
963 |
unsigned int old) |
964 |
{ |
965 |
char buf[IRCD_BUFSIZE] = ""; |
966 |
|
967 |
send_umode(NULL, source_p, old, SEND_UMODES, buf); |
968 |
|
969 |
if (buf[0]) |
970 |
sendto_server(source_p, NOCAPS, NOCAPS, ":%s MODE %s :%s", |
971 |
source_p->id, source_p->id, buf); |
972 |
|
973 |
if (client_p && MyClient(client_p)) |
974 |
send_umode(client_p, source_p, old, 0xffffffff, buf); |
975 |
} |
976 |
|
977 |
void |
978 |
user_set_hostmask(struct Client *target_p, const char *hostname, const int what) |
979 |
{ |
980 |
dlink_node *ptr = NULL; |
981 |
|
982 |
if (!strcmp(target_p->host, hostname)) |
983 |
return; |
984 |
|
985 |
switch (what) |
986 |
{ |
987 |
case MODE_ADD: |
988 |
AddUMode(target_p, UMODE_HIDDENHOST); |
989 |
AddFlag(target_p, FLAGS_IP_SPOOFING); |
990 |
break; |
991 |
case MODE_DEL: |
992 |
DelUMode(target_p, UMODE_HIDDENHOST); |
993 |
|
994 |
if (!HasFlag(target_p, FLAGS_AUTH_SPOOF)) |
995 |
DelFlag(target_p, FLAGS_IP_SPOOFING); |
996 |
break; |
997 |
default: return; |
998 |
} |
999 |
|
1000 |
if (ConfigFileEntry.cycle_on_host_change) |
1001 |
sendto_common_channels_local(target_p, 0, 0, ":%s!%s@%s QUIT :Changing hostname", |
1002 |
target_p->name, target_p->username, target_p->host); |
1003 |
|
1004 |
if (IsUserHostIp(target_p)) |
1005 |
delete_user_host(target_p->username, target_p->host, !MyConnect(target_p)); |
1006 |
|
1007 |
strlcpy(target_p->host, hostname, sizeof(target_p->host)); |
1008 |
|
1009 |
add_user_host(target_p->username, target_p->host, !MyConnect(target_p)); |
1010 |
SetUserHost(target_p); |
1011 |
|
1012 |
if (MyClient(target_p)) |
1013 |
{ |
1014 |
sendto_one_numeric(target_p, &me, RPL_NEWHOSTIS, target_p->host); |
1015 |
clear_ban_cache_client(target_p); |
1016 |
} |
1017 |
|
1018 |
if (!ConfigFileEntry.cycle_on_host_change) |
1019 |
return; |
1020 |
|
1021 |
DLINK_FOREACH(ptr, target_p->channel.head) |
1022 |
{ |
1023 |
char modebuf[4], nickbuf[NICKLEN * 3 + 3] = ""; |
1024 |
char *p = modebuf; |
1025 |
int len = 0; |
1026 |
const struct Membership *ms = ptr->data; |
1027 |
|
1028 |
if (has_member_flags(ms, CHFL_CHANOP)) |
1029 |
{ |
1030 |
*p++ = 'o'; |
1031 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name); |
1032 |
} |
1033 |
|
1034 |
if (has_member_flags(ms, CHFL_HALFOP)) |
1035 |
{ |
1036 |
*p++ = 'h'; |
1037 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name); |
1038 |
} |
1039 |
|
1040 |
if (has_member_flags(ms, CHFL_VOICE)) |
1041 |
{ |
1042 |
*p++ = 'v'; |
1043 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name); |
1044 |
} |
1045 |
|
1046 |
*p = '\0'; |
1047 |
|
1048 |
sendto_channel_local_butone(target_p, 0, 0, ms->chptr, ":%s!%s@%s JOIN :%s", |
1049 |
target_p->name, target_p->username, target_p->host, |
1050 |
ms->chptr->chname); |
1051 |
if (nickbuf[0]) |
1052 |
sendto_channel_local_butone(target_p, 0, 0, ms->chptr, ":%s MODE %s +%s %s", |
1053 |
target_p->servptr->name, ms->chptr->chname, |
1054 |
modebuf, nickbuf); |
1055 |
|
1056 |
} |
1057 |
|
1058 |
if (target_p->away[0]) |
1059 |
sendto_common_channels_local(target_p, 0, CAP_AWAY_NOTIFY, |
1060 |
":%s!%s@%s AWAY :%s", |
1061 |
target_p->name, target_p->username, |
1062 |
target_p->host, target_p->away); |
1063 |
} |
1064 |
|
1065 |
/* user_welcome() |
1066 |
* |
1067 |
* inputs - client pointer to client to welcome |
1068 |
* output - NONE |
1069 |
* side effects - |
1070 |
*/ |
1071 |
static void |
1072 |
user_welcome(struct Client *source_p) |
1073 |
{ |
1074 |
#if defined(__TIME__) && defined(__DATE__) |
1075 |
static const char built_date[] = __DATE__ " at " __TIME__; |
1076 |
#else |
1077 |
static const char built_date[] = "unknown"; |
1078 |
#endif |
1079 |
|
1080 |
#ifdef HAVE_LIBCRYPTO |
1081 |
if (HasFlag(source_p, FLAGS_SSL)) |
1082 |
{ |
1083 |
AddUMode(source_p, UMODE_SSL); |
1084 |
sendto_one_notice(source_p, &me, ":*** Connected securely via %s", |
1085 |
ssl_get_cipher(source_p->localClient->fd.ssl)); |
1086 |
} |
1087 |
#endif |
1088 |
|
1089 |
sendto_one_numeric(source_p, &me, RPL_WELCOME, ServerInfo.network_name, |
1090 |
source_p->name); |
1091 |
sendto_one_numeric(source_p, &me, RPL_YOURHOST, |
1092 |
get_listener_name(source_p->localClient->listener), ircd_version); |
1093 |
sendto_one_numeric(source_p, &me, RPL_CREATED, built_date); |
1094 |
sendto_one_numeric(source_p, &me, RPL_MYINFO, me.name, ircd_version, umode_buffer); |
1095 |
show_isupport(source_p); |
1096 |
|
1097 |
if (source_p->id[0]) |
1098 |
sendto_one_numeric(source_p, &me, RPL_YOURID, source_p->id); |
1099 |
|
1100 |
show_lusers(source_p); |
1101 |
motd_signon(source_p); |
1102 |
} |
1103 |
|
1104 |
/* check_xline() |
1105 |
* |
1106 |
* inputs - pointer to client to test |
1107 |
* outupt - 1 if exiting 0 if ok |
1108 |
* side effects - |
1109 |
*/ |
1110 |
static int |
1111 |
check_xline(struct Client *source_p) |
1112 |
{ |
1113 |
struct MaskItem *conf = NULL; |
1114 |
const char *reason = NULL; |
1115 |
|
1116 |
if ((conf = find_matching_name_conf(CONF_XLINE, source_p->info, NULL, NULL, 0))) |
1117 |
{ |
1118 |
++conf->count; |
1119 |
|
1120 |
if (conf->reason) |
1121 |
reason = conf->reason; |
1122 |
else |
1123 |
reason = CONF_NOREASON; |
1124 |
|
1125 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
1126 |
"X-line Rejecting [%s] [%s], user %s [%s]", |
1127 |
source_p->info, reason, |
1128 |
get_client_name(source_p, HIDE_IP), |
1129 |
source_p->sockhost); |
1130 |
|
1131 |
++ServerStats.is_ref; |
1132 |
exit_client(source_p, "Bad user info"); |
1133 |
return 1; |
1134 |
} |
1135 |
|
1136 |
return 0; |
1137 |
} |
1138 |
|
1139 |
/* oper_up() |
1140 |
* |
1141 |
* inputs - pointer to given client to oper |
1142 |
* output - NONE |
1143 |
* side effects - Blindly opers up given source_p, using conf info |
1144 |
* all checks on passwords have already been done. |
1145 |
* This could also be used by rsa oper routines. |
1146 |
*/ |
1147 |
void |
1148 |
oper_up(struct Client *source_p) |
1149 |
{ |
1150 |
const unsigned int old = source_p->umodes; |
1151 |
const struct MaskItem *conf = source_p->localClient->confs.head->data; |
1152 |
|
1153 |
assert(source_p->localClient->confs.head); |
1154 |
|
1155 |
++Count.oper; |
1156 |
SetOper(source_p); |
1157 |
|
1158 |
if (conf->modes) |
1159 |
AddUMode(source_p, conf->modes); |
1160 |
else if (ConfigFileEntry.oper_umodes) |
1161 |
AddUMode(source_p, ConfigFileEntry.oper_umodes); |
1162 |
|
1163 |
if (!(old & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE)) |
1164 |
++Count.invisi; |
1165 |
if ((old & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE)) |
1166 |
--Count.invisi; |
1167 |
|
1168 |
assert(dlinkFind(&oper_list, source_p) == NULL); |
1169 |
dlinkAdd(source_p, make_dlink_node(), &oper_list); |
1170 |
|
1171 |
AddOFlag(source_p, conf->port); |
1172 |
|
1173 |
if (HasOFlag(source_p, OPER_FLAG_ADMIN)) |
1174 |
AddUMode(source_p, UMODE_ADMIN); |
1175 |
|
1176 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s is now an operator", |
1177 |
get_oper_name(source_p)); |
1178 |
send_umode_out(source_p, source_p, old); |
1179 |
sendto_one_numeric(source_p, &me, RPL_YOUREOPER); |
1180 |
} |
1181 |
|
1182 |
static char new_uid[TOTALSIDUID + 1]; /* allow for \0 */ |
1183 |
|
1184 |
int |
1185 |
valid_sid(const char *sid) |
1186 |
{ |
1187 |
if (strlen(sid) == IRC_MAXSID) |
1188 |
if (IsDigit(*sid)) |
1189 |
if (IsAlNum(*(sid + 1)) && IsAlNum(*(sid + 2))) |
1190 |
return 1; |
1191 |
|
1192 |
return 0; |
1193 |
} |
1194 |
|
1195 |
/* |
1196 |
* init_uid() |
1197 |
* |
1198 |
* inputs - NONE |
1199 |
* output - NONE |
1200 |
* side effects - new_uid is filled in with server id portion (sid) |
1201 |
* (first 3 bytes) or defaulted to 'A'. |
1202 |
* Rest is filled in with 'A' |
1203 |
*/ |
1204 |
void |
1205 |
init_uid(void) |
1206 |
{ |
1207 |
memset(new_uid, 0, sizeof(new_uid)); |
1208 |
|
1209 |
if (!EmptyString(ServerInfo.sid)) |
1210 |
strlcpy(new_uid, ServerInfo.sid, sizeof(new_uid)); |
1211 |
|
1212 |
for (unsigned int i = 0; i < IRC_MAXSID; ++i) |
1213 |
if (new_uid[i] == '\0') |
1214 |
new_uid[i] = 'A'; |
1215 |
|
1216 |
/* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */ |
1217 |
memcpy(new_uid + IRC_MAXSID, "AAAAA@", IRC_MAXUID); |
1218 |
} |
1219 |
|
1220 |
/* |
1221 |
* add_one_to_uid |
1222 |
* |
1223 |
* inputs - index number into new_uid |
1224 |
* output - NONE |
1225 |
* side effects - new_uid is incremented by one |
1226 |
* note this is a recursive function |
1227 |
*/ |
1228 |
static void |
1229 |
add_one_to_uid(int i) |
1230 |
{ |
1231 |
if (i != IRC_MAXSID) /* Not reached server SID portion yet? */ |
1232 |
{ |
1233 |
if (new_uid[i] == 'Z') |
1234 |
new_uid[i] = '0'; |
1235 |
else if (new_uid[i] == '9') |
1236 |
{ |
1237 |
new_uid[i] = 'A'; |
1238 |
add_one_to_uid(i-1); |
1239 |
} |
1240 |
else |
1241 |
++new_uid[i]; |
1242 |
} |
1243 |
else |
1244 |
{ |
1245 |
/* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */ |
1246 |
if (new_uid[i] == 'Z') |
1247 |
memcpy(new_uid + IRC_MAXSID, "AAAAAA", IRC_MAXUID); |
1248 |
else |
1249 |
++new_uid[i]; |
1250 |
} |
1251 |
} |
1252 |
|
1253 |
/* |
1254 |
* uid_get |
1255 |
* |
1256 |
* inputs - struct Client * |
1257 |
* output - new UID is returned to caller |
1258 |
* side effects - new_uid is incremented by one. |
1259 |
*/ |
1260 |
static const char * |
1261 |
uid_get(void) |
1262 |
{ |
1263 |
add_one_to_uid(TOTALSIDUID - 1); /* index from 0 */ |
1264 |
return new_uid; |
1265 |
} |
1266 |
|
1267 |
/* |
1268 |
* init_isupport() |
1269 |
* |
1270 |
* input - NONE |
1271 |
* output - NONE |
1272 |
* side effects - Must be called before isupport is enabled |
1273 |
*/ |
1274 |
void |
1275 |
init_isupport(void) |
1276 |
{ |
1277 |
add_isupport("CALLERID", NULL, -1); |
1278 |
add_isupport("CASEMAPPING", CASEMAP, -1); |
1279 |
add_isupport("DEAF", "D", -1); |
1280 |
add_isupport("KICKLEN", NULL, KICKLEN); |
1281 |
add_isupport("MODES", NULL, MAXMODEPARAMS); |
1282 |
#ifdef HALFOPS |
1283 |
add_isupport("PREFIX", "(ohv)@%+", -1); |
1284 |
add_isupport("STATUSMSG", "@%+", -1); |
1285 |
#else |
1286 |
add_isupport("PREFIX", "(ov)@+", -1); |
1287 |
add_isupport("STATUSMSG", "@+", -1); |
1288 |
#endif |
1289 |
add_isupport("EXCEPTS", "e", -1); |
1290 |
add_isupport("INVEX", "I", -1); |
1291 |
} |
1292 |
|
1293 |
/* |
1294 |
* add_isupport() |
1295 |
* |
1296 |
* input - name of supported function |
1297 |
* - options if any |
1298 |
* - number if any |
1299 |
* output - NONE |
1300 |
* side effects - Each supported item must call this when activated |
1301 |
*/ |
1302 |
void |
1303 |
add_isupport(const char *name, const char *options, int n) |
1304 |
{ |
1305 |
dlink_node *ptr; |
1306 |
struct Isupport *support; |
1307 |
|
1308 |
DLINK_FOREACH(ptr, support_list.head) |
1309 |
{ |
1310 |
support = ptr->data; |
1311 |
if (irccmp(support->name, name) == 0) |
1312 |
{ |
1313 |
MyFree(support->name); |
1314 |
MyFree(support->options); |
1315 |
break; |
1316 |
} |
1317 |
} |
1318 |
|
1319 |
if (ptr == NULL) |
1320 |
{ |
1321 |
support = MyMalloc(sizeof(*support)); |
1322 |
dlinkAddTail(support, &support->node, &support_list); |
1323 |
} |
1324 |
|
1325 |
support->name = xstrdup(name); |
1326 |
if (options != NULL) |
1327 |
support->options = xstrdup(options); |
1328 |
support->number = n; |
1329 |
|
1330 |
rebuild_isupport_message_line(); |
1331 |
} |
1332 |
|
1333 |
/* |
1334 |
* delete_isupport() |
1335 |
* |
1336 |
* input - name of supported function |
1337 |
* output - NONE |
1338 |
* side effects - Each supported item must call this when deactivated |
1339 |
*/ |
1340 |
void |
1341 |
delete_isupport(const char *name) |
1342 |
{ |
1343 |
dlink_node *ptr; |
1344 |
struct Isupport *support; |
1345 |
|
1346 |
DLINK_FOREACH(ptr, support_list.head) |
1347 |
{ |
1348 |
support = ptr->data; |
1349 |
if (irccmp(support->name, name) == 0) |
1350 |
{ |
1351 |
dlinkDelete(ptr, &support_list); |
1352 |
MyFree(support->name); |
1353 |
MyFree(support->options); |
1354 |
MyFree(support); |
1355 |
break; |
1356 |
} |
1357 |
} |
1358 |
|
1359 |
rebuild_isupport_message_line(); |
1360 |
} |
1361 |
|
1362 |
/* |
1363 |
* rebuild_isupport_message_line |
1364 |
* |
1365 |
* input - NONE |
1366 |
* output - NONE |
1367 |
* side effects - Destroy the isupport MessageFile lines, and rebuild. |
1368 |
*/ |
1369 |
void |
1370 |
rebuild_isupport_message_line(void) |
1371 |
{ |
1372 |
char isupportbuffer[IRCD_BUFSIZE]; |
1373 |
char *p = isupportbuffer; |
1374 |
dlink_node *ptr = NULL, *ptr_next = NULL; |
1375 |
int n = 0; |
1376 |
int tokens = 0; |
1377 |
size_t len = 0; |
1378 |
size_t reserve = strlen(me.name) + HOSTLEN + strlen(numeric_form(RPL_ISUPPORT)); |
1379 |
|
1380 |
DLINK_FOREACH_SAFE(ptr, ptr_next, support_list_lines.head) |
1381 |
{ |
1382 |
dlinkDelete(ptr, &support_list_lines); |
1383 |
MyFree(ptr->data); |
1384 |
free_dlink_node(ptr); |
1385 |
} |
1386 |
|
1387 |
DLINK_FOREACH(ptr, support_list.head) |
1388 |
{ |
1389 |
struct Isupport *support = ptr->data; |
1390 |
|
1391 |
p += (n = sprintf(p, "%s", support->name)); |
1392 |
len += n; |
1393 |
|
1394 |
if (support->options != NULL) |
1395 |
{ |
1396 |
p += (n = sprintf(p, "=%s", support->options)); |
1397 |
len += n; |
1398 |
} |
1399 |
|
1400 |
if (support->number > 0) |
1401 |
{ |
1402 |
p += (n = sprintf(p, "=%d", support->number)); |
1403 |
len += n; |
1404 |
} |
1405 |
|
1406 |
*p++ = ' '; |
1407 |
len++; |
1408 |
*p = '\0'; |
1409 |
|
1410 |
if (++tokens == (MAXPARA-2) || len >= (sizeof(isupportbuffer)-reserve)) |
1411 |
{ /* arbritrary for now */ |
1412 |
if (*--p == ' ') |
1413 |
*p = '\0'; |
1414 |
|
1415 |
dlinkAddTail(xstrdup(isupportbuffer), make_dlink_node(), &support_list_lines); |
1416 |
p = isupportbuffer; |
1417 |
len = 0; |
1418 |
n = tokens = 0; |
1419 |
} |
1420 |
} |
1421 |
|
1422 |
if (len != 0) |
1423 |
{ |
1424 |
if (*--p == ' ') |
1425 |
*p = '\0'; |
1426 |
dlinkAddTail(xstrdup(isupportbuffer), make_dlink_node(), &support_list_lines); |
1427 |
} |
1428 |
} |