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212380e3 AC |
1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_nick.c: Sets a users nick. | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
22 | * USA | |
23 | * | |
66b4a7ae | 24 | * $Id: m_nick.c 3518 2007-06-22 21:59:09Z jilles $ |
212380e3 AC |
25 | */ |
26 | ||
27 | #include "stdinc.h" | |
28 | #include "client.h" | |
29 | #include "hash.h" | |
4562c604 | 30 | #include "match.h" |
212380e3 AC |
31 | #include "ircd.h" |
32 | #include "numeric.h" | |
33 | #include "s_conf.h" | |
34 | #include "s_stats.h" | |
35 | #include "s_user.h" | |
36 | #include "hash.h" | |
37 | #include "whowas.h" | |
38 | #include "s_serv.h" | |
39 | #include "send.h" | |
40 | #include "channel.h" | |
4016731b | 41 | #include "logger.h" |
212380e3 AC |
42 | #include "msg.h" |
43 | #include "parse.h" | |
44 | #include "modules.h" | |
45 | #include "common.h" | |
46 | #include "packet.h" | |
47 | #include "scache.h" | |
48 | #include "s_newconf.h" | |
49 | #include "monitor.h" | |
77d3d2db | 50 | #include "s_assert.h" |
212380e3 | 51 | |
3f7e0642 JT |
52 | /* Give all UID nicks the same TS. This ensures nick TS is always the same on |
53 | * all servers for each nick-user pair, also if a user with a UID nick changes | |
54 | * their nick but is collided again (the server detecting the collision will | |
55 | * not propagate the nick change further). -- jilles | |
56 | */ | |
57 | #define SAVE_NICKTS 100 | |
58 | ||
212380e3 AC |
59 | static int mr_nick(struct Client *, struct Client *, int, const char **); |
60 | static int m_nick(struct Client *, struct Client *, int, const char **); | |
61 | static int mc_nick(struct Client *, struct Client *, int, const char **); | |
62 | static int ms_nick(struct Client *, struct Client *, int, const char **); | |
63 | static int ms_uid(struct Client *, struct Client *, int, const char **); | |
64 | static int ms_euid(struct Client *, struct Client *, int, const char **); | |
65 | static int ms_save(struct Client *, struct Client *, int, const char **); | |
66 | static int can_save(struct Client *); | |
67 | static void save_user(struct Client *, struct Client *, struct Client *); | |
ad35b2cd | 68 | static void bad_nickname(struct Client *, const char *); |
212380e3 AC |
69 | |
70 | struct Message nick_msgtab = { | |
71 | "NICK", 0, 0, 0, MFLG_SLOW, | |
6c77f1f7 | 72 | {{mr_nick, 0}, {m_nick, 0}, {mc_nick, 3}, {ms_nick, 0}, mg_ignore, {m_nick, 0}} |
212380e3 AC |
73 | }; |
74 | struct Message uid_msgtab = { | |
75 | "UID", 0, 0, 0, MFLG_SLOW, | |
76 | {mg_ignore, mg_ignore, mg_ignore, {ms_uid, 9}, mg_ignore, mg_ignore} | |
77 | }; | |
78 | struct Message euid_msgtab = { | |
79 | "EUID", 0, 0, 0, MFLG_SLOW, | |
80 | {mg_ignore, mg_ignore, mg_ignore, {ms_euid, 12}, mg_ignore, mg_ignore} | |
81 | }; | |
82 | struct Message save_msgtab = { | |
83 | "SAVE", 0, 0, 0, MFLG_SLOW, | |
84 | {mg_ignore, mg_ignore, mg_ignore, {ms_save, 3}, mg_ignore, mg_ignore} | |
85 | }; | |
86 | ||
87 | mapi_clist_av1 nick_clist[] = { &nick_msgtab, &uid_msgtab, &euid_msgtab, | |
88 | &save_msgtab, NULL }; | |
89 | ||
66b4a7ae | 90 | DECLARE_MODULE_AV1(nick, NULL, NULL, nick_clist, NULL, NULL, "$Revision: 3518 $"); |
212380e3 AC |
91 | |
92 | static int change_remote_nick(struct Client *, struct Client *, time_t, | |
93 | const char *, int); | |
94 | ||
95 | static int clean_nick(const char *, int loc_client); | |
96 | static int clean_username(const char *); | |
97 | static int clean_host(const char *); | |
561d7efc | 98 | static int clean_uid(const char *uid, const char *sid); |
212380e3 AC |
99 | |
100 | static void set_initial_nick(struct Client *client_p, struct Client *source_p, char *nick); | |
101 | static void change_local_nick(struct Client *client_p, struct Client *source_p, char *nick, int); | |
102 | static int register_client(struct Client *client_p, struct Client *server, | |
103 | const char *nick, time_t newts, int parc, const char *parv[]); | |
104 | ||
105 | static int perform_nick_collides(struct Client *, struct Client *, | |
106 | struct Client *, int, const char **, | |
107 | time_t, const char *, const char *); | |
108 | static int perform_nickchange_collides(struct Client *, struct Client *, | |
109 | struct Client *, int, const char **, time_t, const char *); | |
110 | ||
111 | /* mr_nick() | |
212380e3 AC |
112 | * parv[1] = nickname |
113 | */ | |
114 | static int | |
115 | mr_nick(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
116 | { | |
117 | struct Client *target_p; | |
118 | char nick[NICKLEN]; | |
212380e3 AC |
119 | |
120 | if (strlen(client_p->id) == 3) | |
121 | { | |
122 | exit_client(client_p, client_p, client_p, "Mixing client and server protocol"); | |
123 | return 0; | |
124 | } | |
125 | ||
fda96b89 | 126 | if(parc < 2 || EmptyString(parv[1])) |
212380e3 AC |
127 | { |
128 | sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN), | |
129 | me.name, EmptyString(source_p->name) ? "*" : source_p->name); | |
130 | return 0; | |
131 | } | |
132 | ||
212380e3 | 133 | /* copy the nick and terminate it */ |
b583faf9 | 134 | rb_strlcpy(nick, parv[1], ConfigFileEntry.nicklen); |
212380e3 AC |
135 | |
136 | /* check the nickname is ok */ | |
137 | if(!clean_nick(nick, 1)) | |
138 | { | |
139 | sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), | |
3dfaa671 | 140 | me.name, EmptyString(source_p->name) ? "*" : source_p->name, parv[1]); |
212380e3 AC |
141 | return 0; |
142 | } | |
143 | ||
144 | /* check if the nick is resv'd */ | |
145 | if(find_nick_resv(nick)) | |
146 | { | |
147 | sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), | |
148 | me.name, EmptyString(source_p->name) ? "*" : source_p->name, nick); | |
149 | return 0; | |
150 | } | |
151 | ||
b37021a4 | 152 | if(irc_dictionary_find(nd_dict, nick)) |
212380e3 AC |
153 | { |
154 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
155 | me.name, EmptyString(source_p->name) ? "*" : source_p->name, nick); | |
156 | return 0; | |
157 | } | |
158 | ||
159 | if((target_p = find_named_client(nick)) == NULL) | |
160 | set_initial_nick(client_p, source_p, nick); | |
161 | else if(source_p == target_p) | |
162 | strcpy(source_p->name, nick); | |
163 | else | |
164 | sendto_one(source_p, form_str(ERR_NICKNAMEINUSE), me.name, "*", nick); | |
165 | ||
166 | return 0; | |
167 | } | |
168 | ||
169 | /* m_nick() | |
212380e3 AC |
170 | * parv[1] = nickname |
171 | */ | |
172 | static int | |
173 | m_nick(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
174 | { | |
175 | struct Client *target_p; | |
176 | char nick[NICKLEN]; | |
212380e3 | 177 | |
fda96b89 | 178 | if(parc < 2 || EmptyString(parv[1])) |
212380e3 AC |
179 | { |
180 | sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN), me.name, source_p->name); | |
181 | return 0; | |
182 | } | |
183 | ||
212380e3 AC |
184 | /* mark end of grace period, to prevent nickflooding */ |
185 | if(!IsFloodDone(source_p)) | |
186 | flood_endgrace(source_p); | |
187 | ||
188 | /* terminate nick to NICKLEN, we dont want clean_nick() to error! */ | |
b583faf9 | 189 | rb_strlcpy(nick, parv[1], ConfigFileEntry.nicklen); |
212380e3 AC |
190 | |
191 | /* check the nickname is ok */ | |
192 | if(!clean_nick(nick, 1)) | |
193 | { | |
3dfaa671 | 194 | sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), me.name, source_p->name, nick); |
212380e3 AC |
195 | return 0; |
196 | } | |
197 | ||
198 | if(!IsExemptResv(source_p) && find_nick_resv(nick)) | |
199 | { | |
200 | sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), me.name, source_p->name, nick); | |
201 | return 0; | |
202 | } | |
203 | ||
b37021a4 | 204 | if(irc_dictionary_find(nd_dict, nick)) |
212380e3 AC |
205 | { |
206 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
207 | me.name, EmptyString(source_p->name) ? "*" : source_p->name, nick); | |
208 | return 0; | |
209 | } | |
210 | ||
211 | if((target_p = find_named_client(nick))) | |
212 | { | |
213 | /* If(target_p == source_p) the client is changing nicks between | |
214 | * equivalent nicknames ie: [nick] -> {nick} | |
215 | */ | |
216 | if(target_p == source_p) | |
217 | { | |
218 | /* check the nick isnt exactly the same */ | |
219 | if(strcmp(target_p->name, nick)) | |
220 | change_local_nick(client_p, source_p, nick, 1); | |
221 | ||
222 | } | |
223 | ||
224 | /* drop unregged client */ | |
225 | else if(IsUnknown(target_p)) | |
226 | { | |
227 | exit_client(NULL, target_p, &me, "Overridden"); | |
228 | change_local_nick(client_p, source_p, nick, 1); | |
229 | } | |
230 | else | |
3dfaa671 | 231 | sendto_one(source_p, form_str(ERR_NICKNAMEINUSE), me.name, source_p->name, nick); |
212380e3 AC |
232 | |
233 | return 0; | |
234 | } | |
235 | else | |
236 | change_local_nick(client_p, source_p, nick, 1); | |
237 | ||
238 | return 0; | |
239 | } | |
240 | ||
6c77f1f7 | 241 | /* mc_nick() |
55abcbb2 | 242 | * |
212380e3 | 243 | * server -> server nick change |
212380e3 AC |
244 | * parv[1] = nickname |
245 | * parv[2] = TS when nick change | |
212380e3 AC |
246 | */ |
247 | static int | |
248 | mc_nick(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
249 | { | |
250 | struct Client *target_p; | |
251 | time_t newts = 0; | |
252 | ||
253 | /* if nicks erroneous, or too long, kill */ | |
254 | if(!clean_nick(parv[1], 0)) | |
255 | { | |
ad35b2cd | 256 | bad_nickname(client_p, parv[1]); |
212380e3 AC |
257 | return 0; |
258 | } | |
259 | ||
260 | newts = atol(parv[2]); | |
261 | target_p = find_named_client(parv[1]); | |
262 | ||
263 | /* if the nick doesnt exist, allow it and process like normal */ | |
264 | if(target_p == NULL) | |
265 | { | |
266 | change_remote_nick(client_p, source_p, newts, parv[1], 1); | |
267 | } | |
268 | else if(IsUnknown(target_p)) | |
269 | { | |
270 | exit_client(NULL, target_p, &me, "Overridden"); | |
271 | change_remote_nick(client_p, source_p, newts, parv[1], 1); | |
272 | } | |
273 | else if(target_p == source_p) | |
274 | { | |
275 | /* client changing case of nick */ | |
276 | if(strcmp(target_p->name, parv[1])) | |
277 | change_remote_nick(client_p, source_p, newts, parv[1], 1); | |
278 | } | |
279 | /* we've got a collision! */ | |
280 | else | |
281 | perform_nickchange_collides(source_p, client_p, target_p, | |
282 | parc, parv, newts, parv[1]); | |
283 | ||
284 | return 0; | |
285 | } | |
286 | ||
287 | static int | |
288 | ms_nick(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
289 | { | |
6c77f1f7 | 290 | const char *nick, *server; |
212380e3 | 291 | |
6c77f1f7 JT |
292 | nick = parc > 1 ? parv[1] : "?"; |
293 | server = parc > 7 ? parv[7] : "?"; | |
212380e3 | 294 | |
6c77f1f7 JT |
295 | sendto_wallops_flags(UMODE_WALLOP, &me, |
296 | "Link %s cancelled, TS5 nickname %s on %s introduced (old server?)", | |
297 | client_p->name, nick, server); | |
298 | sendto_server(NULL, NULL, CAP_TS6, NOCAPS, | |
299 | ":%s WALLOPS :Link %s cancelled, TS5 nickname %s on %s introduced (old server?)", | |
300 | me.id, client_p->name, nick, server); | |
301 | ilog(L_SERVER, "Link %s cancelled, TS5 nickname %s on %s introduced (old server?)", | |
302 | client_p->name, nick, server); | |
212380e3 | 303 | |
6c77f1f7 | 304 | exit_client(client_p, client_p, &me, "TS5 nickname introduced"); |
212380e3 AC |
305 | |
306 | return 0; | |
307 | } | |
308 | ||
309 | /* ms_uid() | |
310 | * parv[1] - nickname | |
311 | * parv[2] - hops | |
312 | * parv[3] - TS | |
313 | * parv[4] - umodes | |
314 | * parv[5] - username | |
315 | * parv[6] - hostname | |
316 | * parv[7] - IP | |
317 | * parv[8] - UID | |
318 | * parv[9] - gecos | |
319 | */ | |
320 | static int | |
321 | ms_uid(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
322 | { | |
323 | struct Client *target_p; | |
324 | time_t newts = 0; | |
4a5655b2 | 325 | char squitreason[120]; |
212380e3 AC |
326 | |
327 | newts = atol(parv[3]); | |
328 | ||
329 | if(parc != 10) | |
330 | { | |
331 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
332 | "Dropping server %s due to (invalid) command 'UID' " | |
333 | "with %d arguments (expecting 10)", client_p->name, parc); | |
334 | ilog(L_SERVER, "Excess parameters (%d) for command 'UID' from %s.", | |
335 | parc, client_p->name); | |
56023eb2 JT |
336 | rb_snprintf(squitreason, sizeof squitreason, |
337 | "Excess parameters (%d) to %s command, expecting %d", | |
338 | parc, "UID", 10); | |
339 | exit_client(client_p, client_p, client_p, squitreason); | |
212380e3 AC |
340 | return 0; |
341 | } | |
342 | ||
343 | /* if nicks erroneous, or too long, kill */ | |
344 | if(!clean_nick(parv[1], 0)) | |
345 | { | |
ad35b2cd | 346 | bad_nickname(client_p, parv[1]); |
212380e3 AC |
347 | return 0; |
348 | } | |
349 | ||
561d7efc | 350 | if(!clean_uid(parv[8], source_p->id)) |
212380e3 | 351 | { |
4a5655b2 | 352 | rb_snprintf(squitreason, sizeof squitreason, |
e0c7937a JT |
353 | "Invalid UID %s for nick %s on %s/%s", |
354 | parv[8], parv[1], source_p->name, source_p->id); | |
4a5655b2 | 355 | exit_client(client_p, client_p, client_p, squitreason); |
212380e3 AC |
356 | return 0; |
357 | } | |
358 | ||
4a5655b2 | 359 | if(!clean_username(parv[5]) || !clean_host(parv[6])) |
212380e3 | 360 | { |
47adde3d | 361 | ServerStats.is_kill++; |
212380e3 | 362 | sendto_realops_snomask(SNO_DEBUG, L_ALL, |
4a5655b2 JT |
363 | "Bad user@host: %s@%s From: %s(via %s)", |
364 | parv[5], parv[6], source_p->name, client_p->name); | |
365 | sendto_one(client_p, ":%s KILL %s :%s (Bad user@host)", me.id, parv[8], me.name); | |
212380e3 AC |
366 | return 0; |
367 | } | |
368 | ||
369 | /* check length of clients gecos */ | |
370 | if(strlen(parv[9]) > REALLEN) | |
371 | { | |
372 | char *s = LOCAL_COPY(parv[9]); | |
373 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "Long realname from server %s for %s", | |
3dfaa671 | 374 | source_p->name, parv[1]); |
212380e3 AC |
375 | s[REALLEN] = '\0'; |
376 | parv[9] = s; | |
377 | } | |
378 | ||
379 | target_p = find_named_client(parv[1]); | |
380 | ||
381 | if(target_p == NULL) | |
382 | { | |
383 | register_client(client_p, source_p, parv[1], newts, parc, parv); | |
384 | } | |
385 | else if(IsUnknown(target_p)) | |
386 | { | |
387 | exit_client(NULL, target_p, &me, "Overridden"); | |
388 | register_client(client_p, source_p, parv[1], newts, parc, parv); | |
389 | } | |
390 | /* we've got a collision! */ | |
391 | else | |
392 | perform_nick_collides(source_p, client_p, target_p, parc, parv, | |
393 | newts, parv[1], parv[8]); | |
394 | ||
395 | return 0; | |
396 | } | |
397 | ||
398 | /* ms_euid() | |
399 | * parv[1] - nickname | |
400 | * parv[2] - hops | |
401 | * parv[3] - TS | |
402 | * parv[4] - umodes | |
403 | * parv[5] - username | |
404 | * parv[6] - hostname | |
405 | * parv[7] - IP | |
406 | * parv[8] - UID | |
407 | * parv[9] - realhost | |
408 | * parv[10] - account | |
409 | * parv[11] - gecos | |
410 | */ | |
411 | static int | |
412 | ms_euid(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
413 | { | |
414 | struct Client *target_p; | |
415 | time_t newts = 0; | |
4a5655b2 | 416 | char squitreason[120]; |
212380e3 AC |
417 | |
418 | newts = atol(parv[3]); | |
419 | ||
420 | if(parc != 12) | |
421 | { | |
422 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
423 | "Dropping server %s due to (invalid) command 'EUID' " | |
424 | "with %d arguments (expecting 12)", client_p->name, parc); | |
425 | ilog(L_SERVER, "Excess parameters (%d) for command 'EUID' from %s.", | |
426 | parc, client_p->name); | |
56023eb2 JT |
427 | rb_snprintf(squitreason, sizeof squitreason, |
428 | "Excess parameters (%d) to %s command, expecting %d", | |
429 | parc, "EUID", 12); | |
430 | exit_client(client_p, client_p, client_p, squitreason); | |
212380e3 AC |
431 | return 0; |
432 | } | |
433 | ||
434 | /* if nicks erroneous, or too long, kill */ | |
435 | if(!clean_nick(parv[1], 0)) | |
436 | { | |
ad35b2cd | 437 | bad_nickname(client_p, parv[1]); |
212380e3 AC |
438 | return 0; |
439 | } | |
440 | ||
561d7efc | 441 | if(!clean_uid(parv[8], source_p->id)) |
212380e3 | 442 | { |
4a5655b2 | 443 | rb_snprintf(squitreason, sizeof squitreason, |
e0c7937a JT |
444 | "Invalid UID %s for nick %s on %s/%s", |
445 | parv[8], parv[1], source_p->name, source_p->id); | |
4a5655b2 | 446 | exit_client(client_p, client_p, client_p, squitreason); |
212380e3 AC |
447 | return 0; |
448 | } | |
449 | ||
4a5655b2 | 450 | if(!clean_username(parv[5]) || !clean_host(parv[6])) |
212380e3 | 451 | { |
47adde3d | 452 | ServerStats.is_kill++; |
212380e3 | 453 | sendto_realops_snomask(SNO_DEBUG, L_ALL, |
4a5655b2 JT |
454 | "Bad user@host: %s@%s From: %s(via %s)", |
455 | parv[5], parv[6], source_p->name, client_p->name); | |
456 | sendto_one(client_p, ":%s KILL %s :%s (Bad user@host)", me.id, parv[8], me.name); | |
212380e3 AC |
457 | return 0; |
458 | } | |
459 | ||
460 | if(strcmp(parv[9], "*") && !clean_host(parv[9])) | |
461 | { | |
47adde3d | 462 | ServerStats.is_kill++; |
212380e3 AC |
463 | sendto_realops_snomask(SNO_DEBUG, L_ALL, |
464 | "Bad realhost: %s From: %s(via %s)", | |
465 | parv[9], source_p->name, client_p->name); | |
466 | sendto_one(client_p, ":%s KILL %s :%s (Bad user@host)", me.id, parv[8], me.name); | |
467 | return 0; | |
468 | } | |
469 | ||
470 | /* check length of clients gecos */ | |
471 | if(strlen(parv[11]) > REALLEN) | |
472 | { | |
473 | char *s = LOCAL_COPY(parv[11]); | |
474 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "Long realname from server %s for %s", | |
3dfaa671 | 475 | source_p->name, parv[1]); |
212380e3 AC |
476 | s[REALLEN] = '\0'; |
477 | parv[11] = s; | |
478 | } | |
479 | ||
480 | target_p = find_named_client(parv[1]); | |
481 | ||
482 | if(target_p == NULL) | |
483 | { | |
484 | register_client(client_p, source_p, parv[1], newts, parc, parv); | |
485 | } | |
486 | else if(IsUnknown(target_p)) | |
487 | { | |
488 | exit_client(NULL, target_p, &me, "Overridden"); | |
489 | register_client(client_p, source_p, parv[1], newts, parc, parv); | |
490 | } | |
491 | /* we've got a collision! */ | |
492 | else | |
493 | perform_nick_collides(source_p, client_p, target_p, parc, parv, | |
494 | newts, parv[1], parv[8]); | |
495 | ||
496 | return 0; | |
497 | } | |
498 | ||
499 | /* ms_save() | |
500 | * parv[1] - UID | |
501 | * parv[2] - TS | |
502 | */ | |
503 | static int | |
504 | ms_save(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
505 | { | |
506 | struct Client *target_p; | |
507 | ||
508 | target_p = find_id(parv[1]); | |
509 | if (target_p == NULL) | |
510 | return 0; | |
511 | if (!IsPerson(target_p)) | |
512 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
513 | "Ignored SAVE message for non-person %s from %s", | |
514 | target_p->name, source_p->name); | |
515 | else if (IsDigit(target_p->name[0])) | |
516 | sendto_realops_snomask(SNO_DEBUG, L_ALL, | |
517 | "Ignored noop SAVE message for %s from %s", | |
518 | target_p->name, source_p->name); | |
519 | else if (target_p->tsinfo == atol(parv[2])) | |
520 | save_user(client_p, source_p, target_p); | |
521 | else | |
522 | sendto_realops_snomask(SNO_SKILL, L_ALL, | |
523 | "Ignored SAVE message for %s from %s", | |
524 | target_p->name, source_p->name); | |
525 | return 0; | |
526 | } | |
527 | ||
528 | /* clean_nick() | |
529 | * | |
530 | * input - nickname to check | |
531 | * output - 0 if erroneous, else 1 | |
55abcbb2 | 532 | * side effects - |
212380e3 AC |
533 | */ |
534 | static int | |
535 | clean_nick(const char *nick, int loc_client) | |
536 | { | |
537 | int len = 0; | |
538 | ||
539 | /* nicks cant start with a digit or -, and must have a length */ | |
540 | if(*nick == '-' || *nick == '\0') | |
541 | return 0; | |
542 | ||
543 | if(loc_client && IsDigit(*nick)) | |
544 | return 0; | |
545 | ||
546 | for(; *nick; nick++) | |
547 | { | |
548 | len++; | |
549 | if(!IsNickChar(*nick)) | |
550 | return 0; | |
551 | } | |
552 | ||
553 | /* nicklen is +1 */ | |
b583faf9 | 554 | if(len >= NICKLEN && len >= ConfigFileEntry.nicklen) |
212380e3 AC |
555 | return 0; |
556 | ||
557 | return 1; | |
558 | } | |
559 | ||
560 | /* clean_username() | |
561 | * | |
562 | * input - username to check | |
563 | * output - 0 if erroneous, else 0 | |
564 | * side effects - | |
565 | */ | |
566 | static int | |
567 | clean_username(const char *username) | |
568 | { | |
569 | int len = 0; | |
570 | ||
571 | for(; *username; username++) | |
572 | { | |
573 | len++; | |
574 | ||
575 | if(!IsUserChar(*username)) | |
576 | return 0; | |
577 | } | |
578 | ||
579 | if(len > USERLEN) | |
580 | return 0; | |
581 | ||
582 | return 1; | |
583 | } | |
584 | ||
585 | /* clean_host() | |
586 | * | |
587 | * input - host to check | |
588 | * output - 0 if erroneous, else 0 | |
589 | * side effects - | |
590 | */ | |
591 | static int | |
592 | clean_host(const char *host) | |
593 | { | |
594 | int len = 0; | |
595 | ||
596 | for(; *host; host++) | |
597 | { | |
598 | len++; | |
599 | ||
600 | if(!IsHostChar(*host)) | |
601 | return 0; | |
602 | } | |
603 | ||
604 | if(len > HOSTLEN) | |
605 | return 0; | |
606 | ||
607 | return 1; | |
608 | } | |
609 | ||
610 | static int | |
561d7efc | 611 | clean_uid(const char *uid, const char *sid) |
212380e3 AC |
612 | { |
613 | int len = 1; | |
614 | ||
561d7efc JT |
615 | if(strncmp(uid, sid, strlen(sid))) |
616 | return 0; | |
617 | ||
212380e3 AC |
618 | if(!IsDigit(*uid++)) |
619 | return 0; | |
620 | ||
621 | for(; *uid; uid++) | |
622 | { | |
623 | len++; | |
624 | ||
625 | if(!IsIdChar(*uid)) | |
626 | return 0; | |
627 | } | |
628 | ||
629 | if(len != IDLEN - 1) | |
630 | return 0; | |
631 | ||
632 | return 1; | |
633 | } | |
634 | ||
635 | static void | |
636 | set_initial_nick(struct Client *client_p, struct Client *source_p, char *nick) | |
637 | { | |
638 | char buf[USERLEN + 1]; | |
0e7cb7e6 | 639 | char note[NICKLEN + 10]; |
212380e3 AC |
640 | |
641 | /* This had to be copied here to avoid problems.. */ | |
e3354945 | 642 | source_p->tsinfo = rb_current_time(); |
212380e3 AC |
643 | if(source_p->name[0]) |
644 | del_from_client_hash(source_p->name, source_p); | |
645 | ||
646 | strcpy(source_p->name, nick); | |
647 | add_to_client_hash(nick, source_p); | |
648 | ||
0e7cb7e6 JT |
649 | rb_snprintf(note, sizeof(note), "Nick: %s", nick); |
650 | rb_note(client_p->localClient->F, note); | |
212380e3 AC |
651 | |
652 | if(source_p->flags & FLAGS_SENTUSER) | |
653 | { | |
f427c8b0 | 654 | rb_strlcpy(buf, source_p->username, sizeof(buf)); |
212380e3 AC |
655 | |
656 | /* got user, heres nick. */ | |
657 | register_local_user(client_p, source_p, buf); | |
658 | ||
659 | } | |
660 | } | |
661 | ||
662 | static void | |
663 | change_local_nick(struct Client *client_p, struct Client *source_p, | |
664 | char *nick, int dosend) | |
665 | { | |
666 | struct Client *target_p; | |
637c4932 | 667 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 668 | struct Channel *chptr; |
0e7cb7e6 | 669 | char note[NICKLEN + 10]; |
212380e3 AC |
670 | int samenick; |
671 | ||
672 | if (dosend) | |
673 | { | |
674 | chptr = find_bannickchange_channel(source_p); | |
675 | if (chptr != NULL) | |
676 | { | |
677 | sendto_one_numeric(source_p, ERR_BANNICKCHANGE, | |
678 | form_str(ERR_BANNICKCHANGE), | |
679 | nick, chptr->chname); | |
680 | return; | |
681 | } | |
e3354945 | 682 | if((source_p->localClient->last_nick_change + ConfigFileEntry.max_nick_time) < rb_current_time()) |
212380e3 AC |
683 | source_p->localClient->number_of_nick_changes = 0; |
684 | ||
e3354945 | 685 | source_p->localClient->last_nick_change = rb_current_time(); |
212380e3 AC |
686 | source_p->localClient->number_of_nick_changes++; |
687 | ||
688 | if(ConfigFileEntry.anti_nick_flood && !IsOper(source_p) && | |
689 | source_p->localClient->number_of_nick_changes > ConfigFileEntry.max_nick_changes) | |
690 | { | |
691 | sendto_one(source_p, form_str(ERR_NICKTOOFAST), | |
692 | me.name, source_p->name, source_p->name, | |
693 | nick, ConfigFileEntry.max_nick_time); | |
694 | return; | |
695 | } | |
696 | } | |
697 | ||
698 | samenick = irccmp(source_p->name, nick) ? 0 : 1; | |
699 | ||
700 | /* dont reset TS if theyre just changing case of nick */ | |
701 | if(!samenick) | |
702 | { | |
95ffa685 | 703 | /* force the TS to increase -- jilles */ |
e3354945 | 704 | if (source_p->tsinfo >= rb_current_time()) |
95ffa685 JT |
705 | source_p->tsinfo++; |
706 | else | |
e3354945 | 707 | source_p->tsinfo = rb_current_time(); |
212380e3 AC |
708 | monitor_signoff(source_p); |
709 | /* we only do bancache for local users -- jilles */ | |
710 | if(source_p->user) | |
711 | invalidate_bancache_user(source_p); | |
712 | } | |
713 | ||
714 | sendto_realops_snomask(SNO_NCHANGE, L_ALL, | |
715 | "Nick change: From %s to %s [%s@%s]", | |
716 | source_p->name, nick, source_p->username, source_p->host); | |
717 | ||
718 | /* send the nick change to the users channels */ | |
7a948bda | 719 | sendto_common_channels_local(source_p, NOCAPS, ":%s!%s@%s NICK :%s", |
212380e3 AC |
720 | source_p->name, source_p->username, source_p->host, nick); |
721 | ||
722 | /* send the nick change to servers.. */ | |
723 | if(source_p->user) | |
724 | { | |
725 | add_history(source_p, 1); | |
726 | ||
727 | if (dosend) | |
728 | { | |
729 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s NICK %s :%ld", | |
730 | use_id(source_p), nick, (long) source_p->tsinfo); | |
212380e3 AC |
731 | } |
732 | } | |
733 | ||
734 | /* Finally, add to hash */ | |
735 | del_from_client_hash(source_p->name, source_p); | |
736 | strcpy(source_p->name, nick); | |
737 | add_to_client_hash(nick, source_p); | |
738 | ||
739 | if(!samenick) | |
740 | monitor_signon(source_p); | |
741 | ||
742 | /* Make sure everyone that has this client on its accept list | |
55abcbb2 | 743 | * loses that reference. |
212380e3 AC |
744 | */ |
745 | /* we used to call del_all_accepts() here, but theres no real reason | |
746 | * to clear a clients own list of accepted clients. So just remove | |
747 | * them from everyone elses list --anfl | |
748 | */ | |
637c4932 | 749 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, source_p->on_allow_list.head) |
212380e3 AC |
750 | { |
751 | target_p = ptr->data; | |
752 | ||
555ac41f JT |
753 | rb_dlinkFindDestroy(source_p, &target_p->localClient->allow_list); |
754 | rb_dlinkDestroy(ptr, &source_p->on_allow_list); | |
212380e3 AC |
755 | } |
756 | ||
0e7cb7e6 JT |
757 | rb_snprintf(note, sizeof(note), "Nick: %s", nick); |
758 | rb_note(client_p->localClient->F, note); | |
212380e3 AC |
759 | |
760 | return; | |
761 | } | |
762 | ||
763 | /* | |
764 | * change_remote_nick() | |
765 | */ | |
766 | static int | |
767 | change_remote_nick(struct Client *client_p, struct Client *source_p, | |
768 | time_t newts, const char *nick, int dosend) | |
769 | { | |
770 | struct nd_entry *nd; | |
771 | int samenick = irccmp(source_p->name, nick) ? 0 : 1; | |
772 | ||
773 | /* client changing their nick - dont reset ts if its same */ | |
774 | if(!samenick) | |
775 | { | |
e3354945 | 776 | source_p->tsinfo = newts ? newts : rb_current_time(); |
212380e3 AC |
777 | monitor_signoff(source_p); |
778 | } | |
779 | ||
7a948bda | 780 | sendto_common_channels_local(source_p, NOCAPS, ":%s!%s@%s NICK :%s", |
212380e3 AC |
781 | source_p->name, source_p->username, source_p->host, nick); |
782 | ||
783 | if(source_p->user) | |
784 | { | |
785 | add_history(source_p, 1); | |
786 | if (dosend) | |
787 | { | |
788 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s NICK %s :%ld", | |
789 | use_id(source_p), nick, (long) source_p->tsinfo); | |
212380e3 AC |
790 | } |
791 | } | |
792 | ||
793 | del_from_client_hash(source_p->name, source_p); | |
794 | ||
795 | /* invalidate nick delay when a remote client uses the nick.. */ | |
b37021a4 | 796 | if((nd = irc_dictionary_retrieve(nd_dict, nick))) |
212380e3 AC |
797 | free_nd_entry(nd); |
798 | ||
799 | strcpy(source_p->name, nick); | |
800 | add_to_client_hash(nick, source_p); | |
801 | ||
802 | if(!samenick) | |
803 | monitor_signon(source_p); | |
804 | ||
805 | /* remove all accepts pointing to the client */ | |
806 | del_all_accepts(source_p); | |
807 | ||
808 | return 0; | |
809 | } | |
810 | ||
811 | static int | |
812 | perform_nick_collides(struct Client *source_p, struct Client *client_p, | |
813 | struct Client *target_p, int parc, const char *parv[], | |
814 | time_t newts, const char *nick, const char *uid) | |
815 | { | |
816 | int sameuser; | |
817 | int use_save; | |
818 | const char *action; | |
819 | ||
820 | use_save = ConfigFileEntry.collision_fnc && can_save(target_p) && | |
821 | uid != NULL && can_save(source_p); | |
822 | action = use_save ? "saved" : "killed"; | |
823 | ||
824 | /* if we dont have a ts, or their TS's are the same, kill both */ | |
825 | if(!newts || !target_p->tsinfo || (newts == target_p->tsinfo)) | |
826 | { | |
9d107a71 | 827 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
828 | "Nick collision on %s(%s <- %s)(both %s)", |
829 | target_p->name, target_p->from->name, client_p->name, action); | |
830 | ||
831 | if (use_save) | |
832 | { | |
833 | save_user(&me, &me, target_p); | |
47adde3d | 834 | ServerStats.is_save++; |
212380e3 AC |
835 | sendto_one(client_p, ":%s SAVE %s %ld", me.id, |
836 | uid, (long)newts); | |
837 | register_client(client_p, source_p, | |
3f7e0642 | 838 | uid, SAVE_NICKTS, parc, parv); |
212380e3 AC |
839 | } |
840 | else | |
841 | { | |
842 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, | |
843 | form_str(ERR_NICKCOLLISION), target_p->name); | |
844 | ||
845 | /* if the new client being introduced has a UID, we need to | |
846 | * issue a KILL for it.. | |
847 | */ | |
848 | if(uid) | |
849 | sendto_one(client_p, ":%s KILL %s :%s (Nick collision (new))", | |
850 | me.id, uid, me.name); | |
851 | ||
852 | /* we then need to KILL the old client everywhere */ | |
853 | kill_client_serv_butone(NULL, target_p, "%s (Nick collision (new))", me.name); | |
47adde3d | 854 | ServerStats.is_kill++; |
212380e3 AC |
855 | |
856 | target_p->flags |= FLAGS_KILLED; | |
857 | exit_client(client_p, target_p, &me, "Nick collision (new)"); | |
858 | } | |
859 | return 0; | |
860 | } | |
861 | /* the timestamps are different */ | |
862 | else | |
863 | { | |
864 | sameuser = (target_p->user) && !irccmp(target_p->username, parv[5]) | |
865 | && !irccmp(target_p->host, parv[6]); | |
866 | ||
867 | if((sameuser && newts < target_p->tsinfo) || | |
868 | (!sameuser && newts > target_p->tsinfo)) | |
869 | { | |
870 | /* if we have a UID, then we need to issue a KILL, | |
871 | * otherwise we do nothing and hope that the other | |
872 | * client will collide it.. | |
873 | */ | |
874 | if (use_save) | |
875 | { | |
876 | sendto_one(client_p, ":%s SAVE %s %ld", me.id, | |
877 | uid, (long)newts); | |
878 | register_client(client_p, source_p, | |
3f7e0642 | 879 | uid, SAVE_NICKTS, parc, parv); |
212380e3 AC |
880 | } |
881 | else if(uid) | |
882 | sendto_one(client_p, | |
883 | ":%s KILL %s :%s (Nick collision (new))", | |
884 | me.id, uid, me.name); | |
885 | return 0; | |
886 | } | |
887 | else | |
888 | { | |
889 | if(sameuser) | |
9d107a71 | 890 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
891 | "Nick collision on %s(%s <- %s)(older %s)", |
892 | target_p->name, target_p->from->name, | |
893 | client_p->name, action); | |
894 | else | |
9d107a71 | 895 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
896 | "Nick collision on %s(%s <- %s)(newer %s)", |
897 | target_p->name, target_p->from->name, | |
898 | client_p->name, action); | |
899 | ||
900 | if (use_save) | |
901 | { | |
47adde3d | 902 | ServerStats.is_save++; |
212380e3 AC |
903 | save_user(&me, &me, target_p); |
904 | } | |
905 | else | |
906 | { | |
47adde3d | 907 | ServerStats.is_kill++; |
212380e3 AC |
908 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, |
909 | form_str(ERR_NICKCOLLISION), target_p->name); | |
910 | ||
911 | /* now we just need to kill the existing client */ | |
912 | kill_client_serv_butone(client_p, target_p, | |
913 | "%s (Nick collision (new))", me.name); | |
914 | ||
915 | target_p->flags |= FLAGS_KILLED; | |
916 | (void) exit_client(client_p, target_p, &me, "Nick collision"); | |
917 | } | |
918 | ||
463947ad | 919 | register_client(client_p, source_p, |
212380e3 AC |
920 | nick, newts, parc, parv); |
921 | ||
922 | return 0; | |
923 | } | |
924 | } | |
925 | } | |
926 | ||
927 | ||
928 | static int | |
929 | perform_nickchange_collides(struct Client *source_p, struct Client *client_p, | |
930 | struct Client *target_p, int parc, | |
931 | const char *parv[], time_t newts, const char *nick) | |
932 | { | |
933 | int sameuser; | |
934 | int use_save; | |
935 | const char *action; | |
936 | ||
937 | use_save = ConfigFileEntry.collision_fnc && can_save(target_p) && | |
938 | can_save(source_p); | |
939 | action = use_save ? "saved" : "killed"; | |
940 | ||
941 | /* its a client changing nick and causing a collide */ | |
942 | if(!newts || !target_p->tsinfo || (newts == target_p->tsinfo) || !source_p->user) | |
943 | { | |
9d107a71 | 944 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
945 | "Nick change collision from %s to %s(%s <- %s)(both %s)", |
946 | source_p->name, target_p->name, target_p->from->name, | |
947 | client_p->name, action); | |
948 | ||
949 | if (use_save) | |
950 | { | |
47adde3d | 951 | ServerStats.is_save += 2; |
212380e3 AC |
952 | save_user(&me, &me, target_p); |
953 | sendto_one(client_p, ":%s SAVE %s %ld", me.id, | |
954 | source_p->id, (long)newts); | |
955 | /* don't send a redundant nick change */ | |
956 | if (!IsDigit(source_p->name[0])) | |
3f7e0642 | 957 | change_remote_nick(client_p, source_p, SAVE_NICKTS, source_p->id, 1); |
212380e3 AC |
958 | } |
959 | else | |
960 | { | |
47adde3d | 961 | ServerStats.is_kill++; |
212380e3 AC |
962 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, |
963 | form_str(ERR_NICKCOLLISION), target_p->name); | |
964 | ||
965 | kill_client_serv_butone(NULL, source_p, "%s (Nick change collision)", me.name); | |
966 | ||
47adde3d | 967 | ServerStats.is_kill++; |
212380e3 AC |
968 | |
969 | kill_client_serv_butone(NULL, target_p, "%s (Nick change collision)", me.name); | |
970 | ||
971 | target_p->flags |= FLAGS_KILLED; | |
972 | exit_client(NULL, target_p, &me, "Nick collision(new)"); | |
973 | source_p->flags |= FLAGS_KILLED; | |
974 | exit_client(client_p, source_p, &me, "Nick collision(old)"); | |
975 | } | |
976 | return 0; | |
977 | } | |
978 | else | |
979 | { | |
980 | sameuser = !irccmp(target_p->username, source_p->username) && | |
981 | !irccmp(target_p->host, source_p->host); | |
982 | ||
983 | if((sameuser && newts < target_p->tsinfo) || | |
984 | (!sameuser && newts > target_p->tsinfo)) | |
985 | { | |
986 | if(sameuser) | |
9d107a71 | 987 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
988 | "Nick change collision from %s to %s(%s <- %s)(older %s)", |
989 | source_p->name, target_p->name, | |
990 | target_p->from->name, client_p->name, action); | |
991 | else | |
9d107a71 | 992 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
993 | "Nick change collision from %s to %s(%s <- %s)(newer %s)", |
994 | source_p->name, target_p->name, | |
995 | target_p->from->name, client_p->name, action); | |
996 | ||
997 | if (use_save) | |
998 | { | |
47adde3d | 999 | ServerStats.is_save++; |
212380e3 AC |
1000 | /* can't broadcast a SAVE because the |
1001 | * nickchange has happened at client_p | |
1002 | * but not in other directions -- jilles */ | |
1003 | sendto_one(client_p, ":%s SAVE %s %ld", me.id, | |
1004 | source_p->id, (long)newts); | |
212380e3 AC |
1005 | /* send a :<id> NICK <id> <ts> (!) */ |
1006 | if (!IsDigit(source_p->name[0])) | |
3f7e0642 | 1007 | change_remote_nick(client_p, source_p, SAVE_NICKTS, source_p->id, 1); |
212380e3 AC |
1008 | } |
1009 | else | |
1010 | { | |
47adde3d | 1011 | ServerStats.is_kill++; |
212380e3 | 1012 | |
ce782b68 JT |
1013 | sendto_one_numeric(source_p, ERR_NICKCOLLISION, |
1014 | form_str(ERR_NICKCOLLISION), source_p->name); | |
212380e3 AC |
1015 | |
1016 | /* kill the client issuing the nickchange */ | |
1017 | kill_client_serv_butone(client_p, source_p, | |
1018 | "%s (Nick change collision)", me.name); | |
1019 | ||
1020 | source_p->flags |= FLAGS_KILLED; | |
1021 | ||
1022 | if(sameuser) | |
1023 | exit_client(client_p, source_p, &me, "Nick collision(old)"); | |
1024 | else | |
1025 | exit_client(client_p, source_p, &me, "Nick collision(new)"); | |
1026 | } | |
1027 | return 0; | |
1028 | } | |
1029 | else | |
1030 | { | |
1031 | if(sameuser) | |
9d107a71 | 1032 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
1033 | "Nick collision on %s(%s <- %s)(older %s)", |
1034 | target_p->name, target_p->from->name, | |
1035 | client_p->name, action); | |
1036 | else | |
9d107a71 | 1037 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
1038 | "Nick collision on %s(%s <- %s)(newer %s)", |
1039 | target_p->name, target_p->from->name, | |
1040 | client_p->name, action); | |
1041 | ||
1042 | if (use_save) | |
1043 | { | |
47adde3d | 1044 | ServerStats.is_save++; |
212380e3 AC |
1045 | save_user(&me, &me, target_p); |
1046 | } | |
1047 | else | |
1048 | { | |
1049 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, | |
1050 | form_str(ERR_NICKCOLLISION), target_p->name); | |
1051 | ||
1052 | /* kill the client who existed before hand */ | |
1053 | kill_client_serv_butone(client_p, target_p, "%s (Nick collision)", me.name); | |
1054 | ||
47adde3d | 1055 | ServerStats.is_kill++; |
212380e3 AC |
1056 | |
1057 | target_p->flags |= FLAGS_KILLED; | |
1058 | (void) exit_client(client_p, target_p, &me, "Nick collision"); | |
1059 | } | |
1060 | } | |
1061 | } | |
1062 | ||
1063 | change_remote_nick(client_p, source_p, newts, nick, 1); | |
1064 | ||
1065 | return 0; | |
1066 | } | |
1067 | ||
1068 | static int | |
1069 | register_client(struct Client *client_p, struct Client *server, | |
1070 | const char *nick, time_t newts, int parc, const char *parv[]) | |
1071 | { | |
1072 | struct Client *source_p; | |
1073 | struct User *user; | |
1074 | struct nd_entry *nd; | |
1075 | const char *m; | |
1076 | int flag; | |
1077 | ||
1078 | source_p = make_client(client_p); | |
1079 | user = make_user(source_p); | |
0e7cb7e6 | 1080 | rb_dlinkAddTail(source_p, &source_p->node, &global_client_list); |
212380e3 AC |
1081 | |
1082 | source_p->hopcount = atoi(parv[2]); | |
1083 | source_p->tsinfo = newts; | |
1084 | ||
1085 | strcpy(source_p->name, nick); | |
f427c8b0 VY |
1086 | rb_strlcpy(source_p->username, parv[5], sizeof(source_p->username)); |
1087 | rb_strlcpy(source_p->host, parv[6], sizeof(source_p->host)); | |
1088 | rb_strlcpy(source_p->orighost, source_p->host, sizeof(source_p->orighost)); | |
212380e3 AC |
1089 | |
1090 | if(parc == 12) | |
1091 | { | |
f427c8b0 VY |
1092 | rb_strlcpy(source_p->info, parv[11], sizeof(source_p->info)); |
1093 | rb_strlcpy(source_p->sockhost, parv[7], sizeof(source_p->sockhost)); | |
1094 | rb_strlcpy(source_p->id, parv[8], sizeof(source_p->id)); | |
212380e3 AC |
1095 | add_to_id_hash(source_p->id, source_p); |
1096 | if (strcmp(parv[9], "*")) | |
1097 | { | |
f427c8b0 | 1098 | rb_strlcpy(source_p->orighost, parv[9], sizeof(source_p->orighost)); |
212380e3 AC |
1099 | if (irccmp(source_p->host, source_p->orighost)) |
1100 | SetDynSpoof(source_p); | |
1101 | } | |
1102 | if (strcmp(parv[10], "*")) | |
f427c8b0 | 1103 | rb_strlcpy(source_p->user->suser, parv[10], sizeof(source_p->user->suser)); |
212380e3 AC |
1104 | } |
1105 | else if(parc == 10) | |
1106 | { | |
f427c8b0 VY |
1107 | rb_strlcpy(source_p->info, parv[9], sizeof(source_p->info)); |
1108 | rb_strlcpy(source_p->sockhost, parv[7], sizeof(source_p->sockhost)); | |
1109 | rb_strlcpy(source_p->id, parv[8], sizeof(source_p->id)); | |
212380e3 AC |
1110 | add_to_id_hash(source_p->id, source_p); |
1111 | } | |
1112 | else | |
1113 | { | |
463947ad | 1114 | s_assert(0); |
212380e3 AC |
1115 | } |
1116 | ||
1117 | /* remove any nd entries for this nick */ | |
b37021a4 | 1118 | if((nd = irc_dictionary_retrieve(nd_dict, nick))) |
212380e3 AC |
1119 | free_nd_entry(nd); |
1120 | ||
1121 | add_to_client_hash(nick, source_p); | |
66b4a7ae | 1122 | add_to_hostname_hash(source_p->orighost, source_p); |
212380e3 AC |
1123 | monitor_signon(source_p); |
1124 | ||
1125 | m = &parv[4][1]; | |
1126 | while(*m) | |
1127 | { | |
1128 | flag = user_modes[(unsigned char) *m]; | |
1129 | ||
1130 | if(flag & UMODE_SERVICE) | |
1131 | { | |
1132 | int hit = 0; | |
5b96d9a6 | 1133 | rb_dlink_node *ptr; |
212380e3 | 1134 | |
5b96d9a6 | 1135 | RB_DLINK_FOREACH(ptr, service_list.head) |
212380e3 | 1136 | { |
c88cdb00 | 1137 | if(!irccmp((const char *) ptr->data, server->name)) |
212380e3 AC |
1138 | { |
1139 | hit++; | |
1140 | break; | |
1141 | } | |
1142 | } | |
1143 | ||
1144 | if(!hit) | |
1145 | { | |
1146 | m++; | |
1147 | continue; | |
1148 | } | |
1149 | } | |
1150 | ||
1151 | /* increment +i count if theyre invis */ | |
1152 | if(!(source_p->umodes & UMODE_INVISIBLE) && (flag & UMODE_INVISIBLE)) | |
1153 | Count.invisi++; | |
1154 | ||
1155 | /* increment opered count if theyre opered */ | |
1156 | if(!(source_p->umodes & UMODE_OPER) && (flag & UMODE_OPER)) | |
1157 | Count.oper++; | |
1158 | ||
1159 | source_p->umodes |= flag; | |
1160 | m++; | |
1161 | } | |
1162 | ||
1163 | if(IsOper(source_p) && !IsService(source_p)) | |
0e7cb7e6 | 1164 | rb_dlinkAddAlloc(source_p, &oper_list); |
212380e3 AC |
1165 | |
1166 | SetRemoteClient(source_p); | |
1167 | ||
1168 | if(++Count.total > Count.max_tot) | |
1169 | Count.max_tot = Count.total; | |
1170 | ||
64449595 | 1171 | source_p->servptr = server; |
212380e3 | 1172 | |
0e7cb7e6 | 1173 | rb_dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->users); |
212380e3 | 1174 | |
212380e3 AC |
1175 | call_hook(h_new_remote_user, source_p); |
1176 | ||
1177 | return (introduce_client(client_p, source_p, user, nick, parc == 12)); | |
1178 | } | |
1179 | ||
1180 | /* Check if we can do SAVE. target_p can be a client to save or a | |
1181 | * server introducing a client -- jilles */ | |
1182 | static int | |
1183 | can_save(struct Client *target_p) | |
1184 | { | |
1185 | struct Client *serv_p; | |
1186 | ||
1187 | if (MyClient(target_p)) | |
1188 | return 1; | |
1189 | if (!has_id(target_p)) | |
1190 | return 0; | |
1191 | serv_p = IsServer(target_p) ? target_p : target_p->servptr; | |
1192 | while (serv_p != NULL && serv_p != &me) | |
1193 | { | |
1194 | if (!(serv_p->serv->caps & CAP_SAVE)) | |
1195 | return 0; | |
1196 | serv_p = serv_p->servptr; | |
1197 | } | |
1198 | return serv_p == &me; | |
1199 | } | |
1200 | ||
1201 | static void | |
1202 | save_user(struct Client *client_p, struct Client *source_p, | |
1203 | struct Client *target_p) | |
1204 | { | |
1205 | if (!MyConnect(target_p) && (!has_id(target_p) || !IsCapable(target_p->from, CAP_SAVE))) | |
1206 | { | |
1207 | /* This shouldn't happen */ | |
1208 | /* Note we only need SAVE support in this direction */ | |
1209 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1210 | "Killed %s!%s@%s for nick collision detected by %s (%s does not support SAVE)", | |
1211 | target_p->name, target_p->username, target_p->host, source_p->name, target_p->from->name); | |
1212 | kill_client_serv_butone(NULL, target_p, "%s (Nick collision (no SAVE support))", me.name); | |
47adde3d | 1213 | ServerStats.is_kill++; |
212380e3 AC |
1214 | |
1215 | target_p->flags |= FLAGS_KILLED; | |
1216 | (void) exit_client(NULL, target_p, &me, "Nick collision (no SAVE support)"); | |
1217 | return; | |
1218 | } | |
1219 | sendto_server(client_p, NULL, CAP_SAVE|CAP_TS6, NOCAPS, ":%s SAVE %s %ld", | |
1220 | source_p->id, target_p->id, (long)target_p->tsinfo); | |
1221 | sendto_server(client_p, NULL, CAP_TS6, CAP_SAVE, ":%s NICK %s :%ld", | |
3f7e0642 | 1222 | target_p->id, target_p->id, (long)SAVE_NICKTS); |
212380e3 AC |
1223 | if (!IsMe(client_p)) |
1224 | sendto_realops_snomask(SNO_SKILL, L_ALL, | |
1225 | "Received SAVE message for %s from %s", | |
1226 | target_p->name, source_p->name); | |
1227 | if (MyClient(target_p)) | |
1228 | { | |
1229 | sendto_one_numeric(target_p, RPL_SAVENICK, | |
1230 | form_str(RPL_SAVENICK), target_p->id); | |
1231 | change_local_nick(target_p, target_p, target_p->id, 0); | |
3f7e0642 | 1232 | target_p->tsinfo = SAVE_NICKTS; |
212380e3 AC |
1233 | } |
1234 | else | |
3f7e0642 | 1235 | change_remote_nick(target_p, target_p, SAVE_NICKTS, target_p->id, 0); |
212380e3 | 1236 | } |
ad35b2cd JT |
1237 | |
1238 | static void bad_nickname(struct Client *client_p, const char *nick) | |
1239 | { | |
1240 | char squitreason[100]; | |
1241 | ||
1242 | sendto_wallops_flags(UMODE_WALLOP, &me, | |
1243 | "Squitting %s because of bad nickname %s (NICKLEN mismatch?)", | |
1244 | client_p->name, nick); | |
1245 | sendto_server(NULL, NULL, CAP_TS6, NOCAPS, | |
1246 | ":%s WALLOPS :Squitting %s because of bad nickname %s (NICKLEN mismatch?)", | |
1247 | me.id, client_p->name, nick); | |
4dd5d304 JT |
1248 | ilog(L_SERVER, "Link %s cancelled, bad nickname %s sent (NICKLEN mismatch?)", |
1249 | client_p->name, nick); | |
ad35b2cd JT |
1250 | |
1251 | rb_snprintf(squitreason, sizeof squitreason, | |
1252 | "Bad nickname introduced [%s]", nick); | |
1253 | exit_client(client_p, client_p, &me, squitreason); | |
1254 | } |