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212380e3 | 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 | * | |
212380e3 | 24 | */ |
25 | ||
26 | #include "stdinc.h" | |
27 | #include "client.h" | |
28 | #include "hash.h" | |
13ae2f4b | 29 | #include "match.h" |
212380e3 | 30 | #include "ircd.h" |
31 | #include "numeric.h" | |
32 | #include "s_conf.h" | |
33 | #include "s_stats.h" | |
34 | #include "s_user.h" | |
35 | #include "hash.h" | |
36 | #include "whowas.h" | |
37 | #include "s_serv.h" | |
38 | #include "send.h" | |
39 | #include "channel.h" | |
d3455e2c | 40 | #include "logger.h" |
212380e3 | 41 | #include "msg.h" |
42 | #include "parse.h" | |
43 | #include "modules.h" | |
44 | #include "common.h" | |
45 | #include "packet.h" | |
46 | #include "scache.h" | |
47 | #include "s_newconf.h" | |
48 | #include "monitor.h" | |
49 | ||
3f7e0642 | 50 | /* Give all UID nicks the same TS. This ensures nick TS is always the same on |
51 | * all servers for each nick-user pair, also if a user with a UID nick changes | |
52 | * their nick but is collided again (the server detecting the collision will | |
53 | * not propagate the nick change further). -- jilles | |
54 | */ | |
55 | #define SAVE_NICKTS 100 | |
56 | ||
212380e3 | 57 | static int mr_nick(struct Client *, struct Client *, int, const char **); |
58 | static int m_nick(struct Client *, struct Client *, int, const char **); | |
59 | static int mc_nick(struct Client *, struct Client *, int, const char **); | |
60 | static int ms_nick(struct Client *, struct Client *, int, const char **); | |
61 | static int ms_uid(struct Client *, struct Client *, int, const char **); | |
62 | static int ms_euid(struct Client *, struct Client *, int, const char **); | |
63 | static int ms_save(struct Client *, struct Client *, int, const char **); | |
64 | static int can_save(struct Client *); | |
65 | static void save_user(struct Client *, struct Client *, struct Client *); | |
0624f969 | 66 | static void bad_nickname(struct Client *, const char *); |
212380e3 | 67 | |
68 | struct Message nick_msgtab = { | |
69 | "NICK", 0, 0, 0, MFLG_SLOW, | |
6eb9f03a | 70 | {{mr_nick, 0}, {m_nick, 0}, {mc_nick, 3}, {ms_nick, 0}, mg_ignore, {m_nick, 0}} |
212380e3 | 71 | }; |
72 | struct Message uid_msgtab = { | |
73 | "UID", 0, 0, 0, MFLG_SLOW, | |
74 | {mg_ignore, mg_ignore, mg_ignore, {ms_uid, 9}, mg_ignore, mg_ignore} | |
75 | }; | |
76 | struct Message euid_msgtab = { | |
77 | "EUID", 0, 0, 0, MFLG_SLOW, | |
78 | {mg_ignore, mg_ignore, mg_ignore, {ms_euid, 12}, mg_ignore, mg_ignore} | |
79 | }; | |
80 | struct Message save_msgtab = { | |
81 | "SAVE", 0, 0, 0, MFLG_SLOW, | |
82 | {mg_ignore, mg_ignore, mg_ignore, {ms_save, 3}, mg_ignore, mg_ignore} | |
83 | }; | |
84 | ||
85 | mapi_clist_av1 nick_clist[] = { &nick_msgtab, &uid_msgtab, &euid_msgtab, | |
86 | &save_msgtab, NULL }; | |
87 | ||
66b4a7ae | 88 | DECLARE_MODULE_AV1(nick, NULL, NULL, nick_clist, NULL, NULL, "$Revision: 3518 $"); |
212380e3 | 89 | |
90 | static int change_remote_nick(struct Client *, struct Client *, time_t, | |
91 | const char *, int); | |
92 | ||
93 | static int clean_nick(const char *, int loc_client); | |
94 | static int clean_username(const char *); | |
95 | static int clean_host(const char *); | |
96 | static int clean_uid(const char *uid); | |
97 | ||
98 | static void set_initial_nick(struct Client *client_p, struct Client *source_p, char *nick); | |
99 | static void change_local_nick(struct Client *client_p, struct Client *source_p, char *nick, int); | |
100 | static int register_client(struct Client *client_p, struct Client *server, | |
101 | const char *nick, time_t newts, int parc, const char *parv[]); | |
102 | ||
103 | static int perform_nick_collides(struct Client *, struct Client *, | |
104 | struct Client *, int, const char **, | |
105 | time_t, const char *, const char *); | |
106 | static int perform_nickchange_collides(struct Client *, struct Client *, | |
107 | struct Client *, int, const char **, time_t, const char *); | |
108 | ||
109 | /* mr_nick() | |
212380e3 | 110 | * parv[1] = nickname |
111 | */ | |
112 | static int | |
113 | mr_nick(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
114 | { | |
115 | struct Client *target_p; | |
116 | char nick[NICKLEN]; | |
117 | char *s; | |
118 | ||
119 | if (strlen(client_p->id) == 3) | |
120 | { | |
121 | exit_client(client_p, client_p, client_p, "Mixing client and server protocol"); | |
122 | return 0; | |
123 | } | |
124 | ||
125 | if(parc < 2 || EmptyString(parv[1]) || (parv[1][0] == '~')) | |
126 | { | |
127 | sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN), | |
128 | me.name, EmptyString(source_p->name) ? "*" : source_p->name); | |
129 | return 0; | |
130 | } | |
131 | ||
132 | /* due to the scandinavian origins, (~ being uppercase of ^) and ~ | |
133 | * being disallowed as a nick char, we need to chop the first ~ | |
134 | * instead of just erroring. | |
135 | */ | |
136 | if((s = strchr(parv[1], '~'))) | |
137 | *s = '\0'; | |
138 | ||
139 | /* copy the nick and terminate it */ | |
907468c4 | 140 | rb_strlcpy(nick, parv[1], sizeof(nick)); |
212380e3 | 141 | |
142 | /* check the nickname is ok */ | |
143 | if(!clean_nick(nick, 1)) | |
144 | { | |
145 | sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), | |
8e425f41 | 146 | me.name, EmptyString(source_p->name) ? "*" : source_p->name, parv[1]); |
212380e3 | 147 | return 0; |
148 | } | |
149 | ||
150 | /* check if the nick is resv'd */ | |
151 | if(find_nick_resv(nick)) | |
152 | { | |
153 | sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), | |
154 | me.name, EmptyString(source_p->name) ? "*" : source_p->name, nick); | |
155 | return 0; | |
156 | } | |
157 | ||
b37021a4 | 158 | if(irc_dictionary_find(nd_dict, nick)) |
212380e3 | 159 | { |
160 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
161 | me.name, EmptyString(source_p->name) ? "*" : source_p->name, nick); | |
162 | return 0; | |
163 | } | |
164 | ||
165 | if((target_p = find_named_client(nick)) == NULL) | |
166 | set_initial_nick(client_p, source_p, nick); | |
167 | else if(source_p == target_p) | |
168 | strcpy(source_p->name, nick); | |
169 | else | |
170 | sendto_one(source_p, form_str(ERR_NICKNAMEINUSE), me.name, "*", nick); | |
171 | ||
172 | return 0; | |
173 | } | |
174 | ||
175 | /* m_nick() | |
212380e3 | 176 | * parv[1] = nickname |
177 | */ | |
178 | static int | |
179 | m_nick(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
180 | { | |
181 | struct Client *target_p; | |
182 | char nick[NICKLEN]; | |
183 | char *s; | |
184 | ||
185 | if(parc < 2 || EmptyString(parv[1]) || (parv[1][0] == '~')) | |
186 | { | |
187 | sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN), me.name, source_p->name); | |
188 | return 0; | |
189 | } | |
190 | ||
191 | /* due to the scandinavian origins, (~ being uppercase of ^) and ~ | |
192 | * being disallowed as a nick char, we need to chop the first ~ | |
193 | * instead of just erroring. | |
194 | */ | |
195 | if((s = strchr(parv[1], '~'))) | |
196 | *s = '\0'; | |
197 | ||
198 | /* mark end of grace period, to prevent nickflooding */ | |
199 | if(!IsFloodDone(source_p)) | |
200 | flood_endgrace(source_p); | |
201 | ||
202 | /* terminate nick to NICKLEN, we dont want clean_nick() to error! */ | |
907468c4 | 203 | rb_strlcpy(nick, parv[1], sizeof(nick)); |
212380e3 | 204 | |
205 | /* check the nickname is ok */ | |
206 | if(!clean_nick(nick, 1)) | |
207 | { | |
8e425f41 | 208 | sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), me.name, source_p->name, nick); |
212380e3 | 209 | return 0; |
210 | } | |
211 | ||
212 | if(!IsExemptResv(source_p) && find_nick_resv(nick)) | |
213 | { | |
214 | sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), me.name, source_p->name, nick); | |
215 | return 0; | |
216 | } | |
217 | ||
b37021a4 | 218 | if(irc_dictionary_find(nd_dict, nick)) |
212380e3 | 219 | { |
220 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
221 | me.name, EmptyString(source_p->name) ? "*" : source_p->name, nick); | |
222 | return 0; | |
223 | } | |
224 | ||
225 | if((target_p = find_named_client(nick))) | |
226 | { | |
227 | /* If(target_p == source_p) the client is changing nicks between | |
228 | * equivalent nicknames ie: [nick] -> {nick} | |
229 | */ | |
230 | if(target_p == source_p) | |
231 | { | |
232 | /* check the nick isnt exactly the same */ | |
233 | if(strcmp(target_p->name, nick)) | |
234 | change_local_nick(client_p, source_p, nick, 1); | |
235 | ||
236 | } | |
237 | ||
238 | /* drop unregged client */ | |
239 | else if(IsUnknown(target_p)) | |
240 | { | |
241 | exit_client(NULL, target_p, &me, "Overridden"); | |
242 | change_local_nick(client_p, source_p, nick, 1); | |
243 | } | |
244 | else | |
8e425f41 | 245 | sendto_one(source_p, form_str(ERR_NICKNAMEINUSE), me.name, source_p->name, nick); |
212380e3 | 246 | |
247 | return 0; | |
248 | } | |
249 | else | |
250 | change_local_nick(client_p, source_p, nick, 1); | |
251 | ||
252 | return 0; | |
253 | } | |
254 | ||
6eb9f03a | 255 | /* mc_nick() |
212380e3 | 256 | * |
257 | * server -> server nick change | |
212380e3 | 258 | * parv[1] = nickname |
259 | * parv[2] = TS when nick change | |
212380e3 | 260 | */ |
261 | static int | |
262 | mc_nick(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
263 | { | |
264 | struct Client *target_p; | |
265 | time_t newts = 0; | |
266 | ||
267 | /* if nicks erroneous, or too long, kill */ | |
268 | if(!clean_nick(parv[1], 0)) | |
269 | { | |
0624f969 | 270 | bad_nickname(client_p, parv[1]); |
212380e3 | 271 | return 0; |
272 | } | |
273 | ||
274 | newts = atol(parv[2]); | |
275 | target_p = find_named_client(parv[1]); | |
276 | ||
277 | /* if the nick doesnt exist, allow it and process like normal */ | |
278 | if(target_p == NULL) | |
279 | { | |
280 | change_remote_nick(client_p, source_p, newts, parv[1], 1); | |
281 | } | |
282 | else if(IsUnknown(target_p)) | |
283 | { | |
284 | exit_client(NULL, target_p, &me, "Overridden"); | |
285 | change_remote_nick(client_p, source_p, newts, parv[1], 1); | |
286 | } | |
287 | else if(target_p == source_p) | |
288 | { | |
289 | /* client changing case of nick */ | |
290 | if(strcmp(target_p->name, parv[1])) | |
291 | change_remote_nick(client_p, source_p, newts, parv[1], 1); | |
292 | } | |
293 | /* we've got a collision! */ | |
294 | else | |
295 | perform_nickchange_collides(source_p, client_p, target_p, | |
296 | parc, parv, newts, parv[1]); | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
301 | static int | |
302 | ms_nick(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
303 | { | |
6eb9f03a | 304 | const char *nick, *server; |
212380e3 | 305 | |
6eb9f03a JT |
306 | nick = parc > 1 ? parv[1] : "?"; |
307 | server = parc > 7 ? parv[7] : "?"; | |
212380e3 | 308 | |
6eb9f03a JT |
309 | sendto_wallops_flags(UMODE_WALLOP, &me, |
310 | "Link %s cancelled, TS5 nickname %s on %s introduced (old server?)", | |
311 | client_p->name, nick, server); | |
312 | sendto_server(NULL, NULL, CAP_TS6, NOCAPS, | |
313 | ":%s WALLOPS :Link %s cancelled, TS5 nickname %s on %s introduced (old server?)", | |
314 | me.id, client_p->name, nick, server); | |
315 | ilog(L_SERVER, "Link %s cancelled, TS5 nickname %s on %s introduced (old server?)", | |
316 | client_p->name, nick, server); | |
212380e3 | 317 | |
6eb9f03a | 318 | exit_client(client_p, client_p, &me, "TS5 nickname introduced"); |
212380e3 | 319 | |
320 | return 0; | |
321 | } | |
322 | ||
323 | /* ms_uid() | |
324 | * parv[1] - nickname | |
325 | * parv[2] - hops | |
326 | * parv[3] - TS | |
327 | * parv[4] - umodes | |
328 | * parv[5] - username | |
329 | * parv[6] - hostname | |
330 | * parv[7] - IP | |
331 | * parv[8] - UID | |
332 | * parv[9] - gecos | |
333 | */ | |
334 | static int | |
335 | ms_uid(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
336 | { | |
337 | struct Client *target_p; | |
338 | time_t newts = 0; | |
4137c21c | 339 | char squitreason[120]; |
212380e3 | 340 | |
341 | newts = atol(parv[3]); | |
342 | ||
343 | if(parc != 10) | |
344 | { | |
345 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
346 | "Dropping server %s due to (invalid) command 'UID' " | |
347 | "with %d arguments (expecting 10)", client_p->name, parc); | |
348 | ilog(L_SERVER, "Excess parameters (%d) for command 'UID' from %s.", | |
349 | parc, client_p->name); | |
18c12212 JT |
350 | rb_snprintf(squitreason, sizeof squitreason, |
351 | "Excess parameters (%d) to %s command, expecting %d", | |
352 | parc, "UID", 10); | |
353 | exit_client(client_p, client_p, client_p, squitreason); | |
212380e3 | 354 | return 0; |
355 | } | |
356 | ||
357 | /* if nicks erroneous, or too long, kill */ | |
358 | if(!clean_nick(parv[1], 0)) | |
359 | { | |
0624f969 | 360 | bad_nickname(client_p, parv[1]); |
212380e3 | 361 | return 0; |
362 | } | |
363 | ||
4137c21c | 364 | if(!clean_uid(parv[8])) |
212380e3 | 365 | { |
4137c21c JT |
366 | rb_snprintf(squitreason, sizeof squitreason, |
367 | "Invalid UID %s for nick %s on %s", | |
368 | parv[8], parv[1], source_p->name); | |
369 | exit_client(client_p, client_p, client_p, squitreason); | |
212380e3 | 370 | return 0; |
371 | } | |
372 | ||
4137c21c | 373 | if(!clean_username(parv[5]) || !clean_host(parv[6])) |
212380e3 | 374 | { |
83251205 | 375 | ServerStats.is_kill++; |
212380e3 | 376 | sendto_realops_snomask(SNO_DEBUG, L_ALL, |
4137c21c JT |
377 | "Bad user@host: %s@%s From: %s(via %s)", |
378 | parv[5], parv[6], source_p->name, client_p->name); | |
379 | sendto_one(client_p, ":%s KILL %s :%s (Bad user@host)", me.id, parv[8], me.name); | |
212380e3 | 380 | return 0; |
381 | } | |
382 | ||
383 | /* check length of clients gecos */ | |
384 | if(strlen(parv[9]) > REALLEN) | |
385 | { | |
386 | char *s = LOCAL_COPY(parv[9]); | |
387 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "Long realname from server %s for %s", | |
8e425f41 | 388 | source_p->name, parv[1]); |
212380e3 | 389 | s[REALLEN] = '\0'; |
390 | parv[9] = s; | |
391 | } | |
392 | ||
393 | target_p = find_named_client(parv[1]); | |
394 | ||
395 | if(target_p == NULL) | |
396 | { | |
397 | register_client(client_p, source_p, parv[1], newts, parc, parv); | |
398 | } | |
399 | else if(IsUnknown(target_p)) | |
400 | { | |
401 | exit_client(NULL, target_p, &me, "Overridden"); | |
402 | register_client(client_p, source_p, parv[1], newts, parc, parv); | |
403 | } | |
404 | /* we've got a collision! */ | |
405 | else | |
406 | perform_nick_collides(source_p, client_p, target_p, parc, parv, | |
407 | newts, parv[1], parv[8]); | |
408 | ||
409 | return 0; | |
410 | } | |
411 | ||
412 | /* ms_euid() | |
413 | * parv[1] - nickname | |
414 | * parv[2] - hops | |
415 | * parv[3] - TS | |
416 | * parv[4] - umodes | |
417 | * parv[5] - username | |
418 | * parv[6] - hostname | |
419 | * parv[7] - IP | |
420 | * parv[8] - UID | |
421 | * parv[9] - realhost | |
422 | * parv[10] - account | |
423 | * parv[11] - gecos | |
424 | */ | |
425 | static int | |
426 | ms_euid(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
427 | { | |
428 | struct Client *target_p; | |
429 | time_t newts = 0; | |
4137c21c | 430 | char squitreason[120]; |
212380e3 | 431 | |
432 | newts = atol(parv[3]); | |
433 | ||
434 | if(parc != 12) | |
435 | { | |
436 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
437 | "Dropping server %s due to (invalid) command 'EUID' " | |
438 | "with %d arguments (expecting 12)", client_p->name, parc); | |
439 | ilog(L_SERVER, "Excess parameters (%d) for command 'EUID' from %s.", | |
440 | parc, client_p->name); | |
18c12212 JT |
441 | rb_snprintf(squitreason, sizeof squitreason, |
442 | "Excess parameters (%d) to %s command, expecting %d", | |
443 | parc, "EUID", 12); | |
444 | exit_client(client_p, client_p, client_p, squitreason); | |
212380e3 | 445 | return 0; |
446 | } | |
447 | ||
448 | /* if nicks erroneous, or too long, kill */ | |
449 | if(!clean_nick(parv[1], 0)) | |
450 | { | |
0624f969 | 451 | bad_nickname(client_p, parv[1]); |
212380e3 | 452 | return 0; |
453 | } | |
454 | ||
4137c21c | 455 | if(!clean_uid(parv[8])) |
212380e3 | 456 | { |
4137c21c JT |
457 | rb_snprintf(squitreason, sizeof squitreason, |
458 | "Invalid UID %s for nick %s on %s", | |
459 | parv[8], parv[1], source_p->name); | |
460 | exit_client(client_p, client_p, client_p, squitreason); | |
212380e3 | 461 | return 0; |
462 | } | |
463 | ||
4137c21c | 464 | if(!clean_username(parv[5]) || !clean_host(parv[6])) |
212380e3 | 465 | { |
83251205 | 466 | ServerStats.is_kill++; |
212380e3 | 467 | sendto_realops_snomask(SNO_DEBUG, L_ALL, |
4137c21c JT |
468 | "Bad user@host: %s@%s From: %s(via %s)", |
469 | parv[5], parv[6], source_p->name, client_p->name); | |
470 | sendto_one(client_p, ":%s KILL %s :%s (Bad user@host)", me.id, parv[8], me.name); | |
212380e3 | 471 | return 0; |
472 | } | |
473 | ||
474 | if(strcmp(parv[9], "*") && !clean_host(parv[9])) | |
475 | { | |
83251205 | 476 | ServerStats.is_kill++; |
212380e3 | 477 | sendto_realops_snomask(SNO_DEBUG, L_ALL, |
478 | "Bad realhost: %s From: %s(via %s)", | |
479 | parv[9], source_p->name, client_p->name); | |
480 | sendto_one(client_p, ":%s KILL %s :%s (Bad user@host)", me.id, parv[8], me.name); | |
481 | return 0; | |
482 | } | |
483 | ||
484 | /* check length of clients gecos */ | |
485 | if(strlen(parv[11]) > REALLEN) | |
486 | { | |
487 | char *s = LOCAL_COPY(parv[11]); | |
488 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "Long realname from server %s for %s", | |
8e425f41 | 489 | source_p->name, parv[1]); |
212380e3 | 490 | s[REALLEN] = '\0'; |
491 | parv[11] = s; | |
492 | } | |
493 | ||
494 | target_p = find_named_client(parv[1]); | |
495 | ||
496 | if(target_p == NULL) | |
497 | { | |
498 | register_client(client_p, source_p, parv[1], newts, parc, parv); | |
499 | } | |
500 | else if(IsUnknown(target_p)) | |
501 | { | |
502 | exit_client(NULL, target_p, &me, "Overridden"); | |
503 | register_client(client_p, source_p, parv[1], newts, parc, parv); | |
504 | } | |
505 | /* we've got a collision! */ | |
506 | else | |
507 | perform_nick_collides(source_p, client_p, target_p, parc, parv, | |
508 | newts, parv[1], parv[8]); | |
509 | ||
510 | return 0; | |
511 | } | |
512 | ||
513 | /* ms_save() | |
514 | * parv[1] - UID | |
515 | * parv[2] - TS | |
516 | */ | |
517 | static int | |
518 | ms_save(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
519 | { | |
520 | struct Client *target_p; | |
521 | ||
522 | target_p = find_id(parv[1]); | |
523 | if (target_p == NULL) | |
524 | return 0; | |
525 | if (!IsPerson(target_p)) | |
526 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
527 | "Ignored SAVE message for non-person %s from %s", | |
528 | target_p->name, source_p->name); | |
529 | else if (IsDigit(target_p->name[0])) | |
530 | sendto_realops_snomask(SNO_DEBUG, L_ALL, | |
531 | "Ignored noop SAVE message for %s from %s", | |
532 | target_p->name, source_p->name); | |
533 | else if (target_p->tsinfo == atol(parv[2])) | |
534 | save_user(client_p, source_p, target_p); | |
535 | else | |
536 | sendto_realops_snomask(SNO_SKILL, L_ALL, | |
537 | "Ignored SAVE message for %s from %s", | |
538 | target_p->name, source_p->name); | |
539 | return 0; | |
540 | } | |
541 | ||
542 | /* clean_nick() | |
543 | * | |
544 | * input - nickname to check | |
545 | * output - 0 if erroneous, else 1 | |
546 | * side effects - | |
547 | */ | |
548 | static int | |
549 | clean_nick(const char *nick, int loc_client) | |
550 | { | |
551 | int len = 0; | |
552 | ||
553 | /* nicks cant start with a digit or -, and must have a length */ | |
554 | if(*nick == '-' || *nick == '\0') | |
555 | return 0; | |
556 | ||
557 | if(loc_client && IsDigit(*nick)) | |
558 | return 0; | |
559 | ||
560 | for(; *nick; nick++) | |
561 | { | |
562 | len++; | |
563 | if(!IsNickChar(*nick)) | |
564 | return 0; | |
565 | } | |
566 | ||
567 | /* nicklen is +1 */ | |
568 | if(len >= NICKLEN) | |
569 | return 0; | |
570 | ||
571 | return 1; | |
572 | } | |
573 | ||
574 | /* clean_username() | |
575 | * | |
576 | * input - username to check | |
577 | * output - 0 if erroneous, else 0 | |
578 | * side effects - | |
579 | */ | |
580 | static int | |
581 | clean_username(const char *username) | |
582 | { | |
583 | int len = 0; | |
584 | ||
585 | for(; *username; username++) | |
586 | { | |
587 | len++; | |
588 | ||
589 | if(!IsUserChar(*username)) | |
590 | return 0; | |
591 | } | |
592 | ||
593 | if(len > USERLEN) | |
594 | return 0; | |
595 | ||
596 | return 1; | |
597 | } | |
598 | ||
599 | /* clean_host() | |
600 | * | |
601 | * input - host to check | |
602 | * output - 0 if erroneous, else 0 | |
603 | * side effects - | |
604 | */ | |
605 | static int | |
606 | clean_host(const char *host) | |
607 | { | |
608 | int len = 0; | |
609 | ||
610 | for(; *host; host++) | |
611 | { | |
612 | len++; | |
613 | ||
614 | if(!IsHostChar(*host)) | |
615 | return 0; | |
616 | } | |
617 | ||
618 | if(len > HOSTLEN) | |
619 | return 0; | |
620 | ||
621 | return 1; | |
622 | } | |
623 | ||
624 | static int | |
625 | clean_uid(const char *uid) | |
626 | { | |
627 | int len = 1; | |
628 | ||
629 | if(!IsDigit(*uid++)) | |
630 | return 0; | |
631 | ||
632 | for(; *uid; uid++) | |
633 | { | |
634 | len++; | |
635 | ||
636 | if(!IsIdChar(*uid)) | |
637 | return 0; | |
638 | } | |
639 | ||
640 | if(len != IDLEN - 1) | |
641 | return 0; | |
642 | ||
643 | return 1; | |
644 | } | |
645 | ||
646 | static void | |
647 | set_initial_nick(struct Client *client_p, struct Client *source_p, char *nick) | |
648 | { | |
649 | char buf[USERLEN + 1]; | |
bfccb2c0 | 650 | char note[NICKLEN + 10]; |
212380e3 | 651 | |
652 | /* This had to be copied here to avoid problems.. */ | |
9f6bbe3c | 653 | source_p->tsinfo = rb_current_time(); |
212380e3 | 654 | if(source_p->name[0]) |
655 | del_from_client_hash(source_p->name, source_p); | |
656 | ||
657 | strcpy(source_p->name, nick); | |
658 | add_to_client_hash(nick, source_p); | |
659 | ||
bfccb2c0 JT |
660 | rb_snprintf(note, sizeof(note), "Nick: %s", nick); |
661 | rb_note(client_p->localClient->F, note); | |
212380e3 | 662 | |
663 | if(source_p->flags & FLAGS_SENTUSER) | |
664 | { | |
907468c4 | 665 | rb_strlcpy(buf, source_p->username, sizeof(buf)); |
212380e3 | 666 | |
667 | /* got user, heres nick. */ | |
668 | register_local_user(client_p, source_p, buf); | |
669 | ||
670 | } | |
671 | } | |
672 | ||
673 | static void | |
674 | change_local_nick(struct Client *client_p, struct Client *source_p, | |
675 | char *nick, int dosend) | |
676 | { | |
677 | struct Client *target_p; | |
90a3c35b | 678 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 679 | struct Channel *chptr; |
bfccb2c0 | 680 | char note[NICKLEN + 10]; |
212380e3 | 681 | int samenick; |
682 | ||
683 | if (dosend) | |
684 | { | |
685 | chptr = find_bannickchange_channel(source_p); | |
686 | if (chptr != NULL) | |
687 | { | |
688 | sendto_one_numeric(source_p, ERR_BANNICKCHANGE, | |
689 | form_str(ERR_BANNICKCHANGE), | |
690 | nick, chptr->chname); | |
691 | return; | |
692 | } | |
afd4834b G |
693 | |
694 | chptr = find_nonickchange_channel(source_p); | |
695 | if (chptr != NULL) | |
696 | { | |
697 | sendto_one_numeric(source_p, ERR_NONICK, | |
698 | form_str(ERR_NONICK), | |
699 | chptr->chname); | |
700 | return; | |
701 | } | |
702 | ||
9f6bbe3c | 703 | if((source_p->localClient->last_nick_change + ConfigFileEntry.max_nick_time) < rb_current_time()) |
212380e3 | 704 | source_p->localClient->number_of_nick_changes = 0; |
705 | ||
9f6bbe3c | 706 | source_p->localClient->last_nick_change = rb_current_time(); |
212380e3 | 707 | source_p->localClient->number_of_nick_changes++; |
708 | ||
709 | if(ConfigFileEntry.anti_nick_flood && !IsOper(source_p) && | |
710 | source_p->localClient->number_of_nick_changes > ConfigFileEntry.max_nick_changes) | |
711 | { | |
712 | sendto_one(source_p, form_str(ERR_NICKTOOFAST), | |
713 | me.name, source_p->name, source_p->name, | |
714 | nick, ConfigFileEntry.max_nick_time); | |
715 | return; | |
716 | } | |
717 | } | |
718 | ||
719 | samenick = irccmp(source_p->name, nick) ? 0 : 1; | |
720 | ||
721 | /* dont reset TS if theyre just changing case of nick */ | |
722 | if(!samenick) | |
723 | { | |
95ffa685 | 724 | /* force the TS to increase -- jilles */ |
9f6bbe3c | 725 | if (source_p->tsinfo >= rb_current_time()) |
95ffa685 | 726 | source_p->tsinfo++; |
727 | else | |
9f6bbe3c | 728 | source_p->tsinfo = rb_current_time(); |
212380e3 | 729 | monitor_signoff(source_p); |
730 | /* we only do bancache for local users -- jilles */ | |
731 | if(source_p->user) | |
732 | invalidate_bancache_user(source_p); | |
733 | } | |
734 | ||
735 | sendto_realops_snomask(SNO_NCHANGE, L_ALL, | |
736 | "Nick change: From %s to %s [%s@%s]", | |
737 | source_p->name, nick, source_p->username, source_p->host); | |
738 | ||
739 | /* send the nick change to the users channels */ | |
740 | sendto_common_channels_local(source_p, ":%s!%s@%s NICK :%s", | |
741 | source_p->name, source_p->username, source_p->host, nick); | |
742 | ||
743 | /* send the nick change to servers.. */ | |
744 | if(source_p->user) | |
745 | { | |
746 | add_history(source_p, 1); | |
747 | ||
748 | if (dosend) | |
749 | { | |
750 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s NICK %s :%ld", | |
751 | use_id(source_p), nick, (long) source_p->tsinfo); | |
212380e3 | 752 | } |
753 | } | |
754 | ||
755 | /* Finally, add to hash */ | |
756 | del_from_client_hash(source_p->name, source_p); | |
757 | strcpy(source_p->name, nick); | |
758 | add_to_client_hash(nick, source_p); | |
759 | ||
760 | if(!samenick) | |
761 | monitor_signon(source_p); | |
762 | ||
763 | /* Make sure everyone that has this client on its accept list | |
764 | * loses that reference. | |
765 | */ | |
766 | /* we used to call del_all_accepts() here, but theres no real reason | |
767 | * to clear a clients own list of accepted clients. So just remove | |
768 | * them from everyone elses list --anfl | |
769 | */ | |
90a3c35b | 770 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, source_p->on_allow_list.head) |
212380e3 | 771 | { |
772 | target_p = ptr->data; | |
773 | ||
9f6c3353 JT |
774 | rb_dlinkFindDestroy(source_p, &target_p->localClient->allow_list); |
775 | rb_dlinkDestroy(ptr, &source_p->on_allow_list); | |
212380e3 | 776 | } |
777 | ||
bfccb2c0 JT |
778 | rb_snprintf(note, sizeof(note), "Nick: %s", nick); |
779 | rb_note(client_p->localClient->F, note); | |
212380e3 | 780 | |
781 | return; | |
782 | } | |
783 | ||
784 | /* | |
785 | * change_remote_nick() | |
786 | */ | |
787 | static int | |
788 | change_remote_nick(struct Client *client_p, struct Client *source_p, | |
789 | time_t newts, const char *nick, int dosend) | |
790 | { | |
791 | struct nd_entry *nd; | |
792 | int samenick = irccmp(source_p->name, nick) ? 0 : 1; | |
793 | ||
794 | /* client changing their nick - dont reset ts if its same */ | |
795 | if(!samenick) | |
796 | { | |
9f6bbe3c | 797 | source_p->tsinfo = newts ? newts : rb_current_time(); |
212380e3 | 798 | monitor_signoff(source_p); |
799 | } | |
800 | ||
801 | sendto_common_channels_local(source_p, ":%s!%s@%s NICK :%s", | |
802 | source_p->name, source_p->username, source_p->host, nick); | |
803 | ||
804 | if(source_p->user) | |
805 | { | |
806 | add_history(source_p, 1); | |
807 | if (dosend) | |
808 | { | |
809 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s NICK %s :%ld", | |
810 | use_id(source_p), nick, (long) source_p->tsinfo); | |
212380e3 | 811 | } |
812 | } | |
813 | ||
814 | del_from_client_hash(source_p->name, source_p); | |
815 | ||
816 | /* invalidate nick delay when a remote client uses the nick.. */ | |
b37021a4 | 817 | if((nd = irc_dictionary_retrieve(nd_dict, nick))) |
212380e3 | 818 | free_nd_entry(nd); |
819 | ||
820 | strcpy(source_p->name, nick); | |
821 | add_to_client_hash(nick, source_p); | |
822 | ||
823 | if(!samenick) | |
824 | monitor_signon(source_p); | |
825 | ||
826 | /* remove all accepts pointing to the client */ | |
827 | del_all_accepts(source_p); | |
828 | ||
829 | return 0; | |
830 | } | |
831 | ||
832 | static int | |
833 | perform_nick_collides(struct Client *source_p, struct Client *client_p, | |
834 | struct Client *target_p, int parc, const char *parv[], | |
835 | time_t newts, const char *nick, const char *uid) | |
836 | { | |
837 | int sameuser; | |
838 | int use_save; | |
839 | const char *action; | |
840 | ||
841 | use_save = ConfigFileEntry.collision_fnc && can_save(target_p) && | |
842 | uid != NULL && can_save(source_p); | |
843 | action = use_save ? "saved" : "killed"; | |
844 | ||
845 | /* if we dont have a ts, or their TS's are the same, kill both */ | |
846 | if(!newts || !target_p->tsinfo || (newts == target_p->tsinfo)) | |
847 | { | |
dc4d5012 | 848 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 | 849 | "Nick collision on %s(%s <- %s)(both %s)", |
850 | target_p->name, target_p->from->name, client_p->name, action); | |
851 | ||
852 | if (use_save) | |
853 | { | |
854 | save_user(&me, &me, target_p); | |
83251205 | 855 | ServerStats.is_save++; |
212380e3 | 856 | sendto_one(client_p, ":%s SAVE %s %ld", me.id, |
857 | uid, (long)newts); | |
858 | register_client(client_p, source_p, | |
3f7e0642 | 859 | uid, SAVE_NICKTS, parc, parv); |
212380e3 | 860 | } |
861 | else | |
862 | { | |
863 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, | |
864 | form_str(ERR_NICKCOLLISION), target_p->name); | |
865 | ||
866 | /* if the new client being introduced has a UID, we need to | |
867 | * issue a KILL for it.. | |
868 | */ | |
869 | if(uid) | |
870 | sendto_one(client_p, ":%s KILL %s :%s (Nick collision (new))", | |
871 | me.id, uid, me.name); | |
872 | ||
873 | /* we then need to KILL the old client everywhere */ | |
874 | kill_client_serv_butone(NULL, target_p, "%s (Nick collision (new))", me.name); | |
83251205 | 875 | ServerStats.is_kill++; |
212380e3 | 876 | |
877 | target_p->flags |= FLAGS_KILLED; | |
878 | exit_client(client_p, target_p, &me, "Nick collision (new)"); | |
879 | } | |
880 | return 0; | |
881 | } | |
882 | /* the timestamps are different */ | |
883 | else | |
884 | { | |
885 | sameuser = (target_p->user) && !irccmp(target_p->username, parv[5]) | |
886 | && !irccmp(target_p->host, parv[6]); | |
887 | ||
888 | if((sameuser && newts < target_p->tsinfo) || | |
889 | (!sameuser && newts > target_p->tsinfo)) | |
890 | { | |
891 | /* if we have a UID, then we need to issue a KILL, | |
892 | * otherwise we do nothing and hope that the other | |
893 | * client will collide it.. | |
894 | */ | |
895 | if (use_save) | |
896 | { | |
897 | sendto_one(client_p, ":%s SAVE %s %ld", me.id, | |
898 | uid, (long)newts); | |
899 | register_client(client_p, source_p, | |
3f7e0642 | 900 | uid, SAVE_NICKTS, parc, parv); |
212380e3 | 901 | } |
902 | else if(uid) | |
903 | sendto_one(client_p, | |
904 | ":%s KILL %s :%s (Nick collision (new))", | |
905 | me.id, uid, me.name); | |
906 | return 0; | |
907 | } | |
908 | else | |
909 | { | |
910 | if(sameuser) | |
dc4d5012 | 911 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 | 912 | "Nick collision on %s(%s <- %s)(older %s)", |
913 | target_p->name, target_p->from->name, | |
914 | client_p->name, action); | |
915 | else | |
dc4d5012 | 916 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 | 917 | "Nick collision on %s(%s <- %s)(newer %s)", |
918 | target_p->name, target_p->from->name, | |
919 | client_p->name, action); | |
920 | ||
921 | if (use_save) | |
922 | { | |
83251205 | 923 | ServerStats.is_save++; |
212380e3 | 924 | save_user(&me, &me, target_p); |
925 | } | |
926 | else | |
927 | { | |
83251205 | 928 | ServerStats.is_kill++; |
212380e3 | 929 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, |
930 | form_str(ERR_NICKCOLLISION), target_p->name); | |
931 | ||
932 | /* now we just need to kill the existing client */ | |
933 | kill_client_serv_butone(client_p, target_p, | |
934 | "%s (Nick collision (new))", me.name); | |
935 | ||
936 | target_p->flags |= FLAGS_KILLED; | |
937 | (void) exit_client(client_p, target_p, &me, "Nick collision"); | |
938 | } | |
939 | ||
1c4d0f3c | 940 | register_client(client_p, source_p, |
212380e3 | 941 | nick, newts, parc, parv); |
942 | ||
943 | return 0; | |
944 | } | |
945 | } | |
946 | } | |
947 | ||
948 | ||
949 | static int | |
950 | perform_nickchange_collides(struct Client *source_p, struct Client *client_p, | |
951 | struct Client *target_p, int parc, | |
952 | const char *parv[], time_t newts, const char *nick) | |
953 | { | |
954 | int sameuser; | |
955 | int use_save; | |
956 | const char *action; | |
957 | ||
958 | use_save = ConfigFileEntry.collision_fnc && can_save(target_p) && | |
959 | can_save(source_p); | |
960 | action = use_save ? "saved" : "killed"; | |
961 | ||
962 | /* its a client changing nick and causing a collide */ | |
963 | if(!newts || !target_p->tsinfo || (newts == target_p->tsinfo) || !source_p->user) | |
964 | { | |
dc4d5012 | 965 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 | 966 | "Nick change collision from %s to %s(%s <- %s)(both %s)", |
967 | source_p->name, target_p->name, target_p->from->name, | |
968 | client_p->name, action); | |
969 | ||
970 | if (use_save) | |
971 | { | |
83251205 | 972 | ServerStats.is_save += 2; |
212380e3 | 973 | save_user(&me, &me, target_p); |
974 | sendto_one(client_p, ":%s SAVE %s %ld", me.id, | |
975 | source_p->id, (long)newts); | |
976 | /* don't send a redundant nick change */ | |
977 | if (!IsDigit(source_p->name[0])) | |
3f7e0642 | 978 | change_remote_nick(client_p, source_p, SAVE_NICKTS, source_p->id, 1); |
212380e3 | 979 | } |
980 | else | |
981 | { | |
83251205 | 982 | ServerStats.is_kill++; |
212380e3 | 983 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, |
984 | form_str(ERR_NICKCOLLISION), target_p->name); | |
985 | ||
986 | kill_client_serv_butone(NULL, source_p, "%s (Nick change collision)", me.name); | |
987 | ||
83251205 | 988 | ServerStats.is_kill++; |
212380e3 | 989 | |
990 | kill_client_serv_butone(NULL, target_p, "%s (Nick change collision)", me.name); | |
991 | ||
992 | target_p->flags |= FLAGS_KILLED; | |
993 | exit_client(NULL, target_p, &me, "Nick collision(new)"); | |
994 | source_p->flags |= FLAGS_KILLED; | |
995 | exit_client(client_p, source_p, &me, "Nick collision(old)"); | |
996 | } | |
997 | return 0; | |
998 | } | |
999 | else | |
1000 | { | |
1001 | sameuser = !irccmp(target_p->username, source_p->username) && | |
1002 | !irccmp(target_p->host, source_p->host); | |
1003 | ||
1004 | if((sameuser && newts < target_p->tsinfo) || | |
1005 | (!sameuser && newts > target_p->tsinfo)) | |
1006 | { | |
1007 | if(sameuser) | |
dc4d5012 | 1008 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 | 1009 | "Nick change collision from %s to %s(%s <- %s)(older %s)", |
1010 | source_p->name, target_p->name, | |
1011 | target_p->from->name, client_p->name, action); | |
1012 | else | |
dc4d5012 | 1013 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 | 1014 | "Nick change collision from %s to %s(%s <- %s)(newer %s)", |
1015 | source_p->name, target_p->name, | |
1016 | target_p->from->name, client_p->name, action); | |
1017 | ||
1018 | if (use_save) | |
1019 | { | |
83251205 | 1020 | ServerStats.is_save++; |
212380e3 | 1021 | /* can't broadcast a SAVE because the |
1022 | * nickchange has happened at client_p | |
1023 | * but not in other directions -- jilles */ | |
1024 | sendto_one(client_p, ":%s SAVE %s %ld", me.id, | |
1025 | source_p->id, (long)newts); | |
212380e3 | 1026 | /* send a :<id> NICK <id> <ts> (!) */ |
1027 | if (!IsDigit(source_p->name[0])) | |
3f7e0642 | 1028 | change_remote_nick(client_p, source_p, SAVE_NICKTS, source_p->id, 1); |
212380e3 | 1029 | } |
1030 | else | |
1031 | { | |
83251205 | 1032 | ServerStats.is_kill++; |
212380e3 | 1033 | |
1034 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, | |
1035 | form_str(ERR_NICKCOLLISION), target_p->name); | |
1036 | ||
1037 | /* kill the client issuing the nickchange */ | |
1038 | kill_client_serv_butone(client_p, source_p, | |
1039 | "%s (Nick change collision)", me.name); | |
1040 | ||
1041 | source_p->flags |= FLAGS_KILLED; | |
1042 | ||
1043 | if(sameuser) | |
1044 | exit_client(client_p, source_p, &me, "Nick collision(old)"); | |
1045 | else | |
1046 | exit_client(client_p, source_p, &me, "Nick collision(new)"); | |
1047 | } | |
1048 | return 0; | |
1049 | } | |
1050 | else | |
1051 | { | |
1052 | if(sameuser) | |
dc4d5012 | 1053 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 | 1054 | "Nick collision on %s(%s <- %s)(older %s)", |
1055 | target_p->name, target_p->from->name, | |
1056 | client_p->name, action); | |
1057 | else | |
dc4d5012 | 1058 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 | 1059 | "Nick collision on %s(%s <- %s)(newer %s)", |
1060 | target_p->name, target_p->from->name, | |
1061 | client_p->name, action); | |
1062 | ||
1063 | if (use_save) | |
1064 | { | |
83251205 | 1065 | ServerStats.is_save++; |
212380e3 | 1066 | save_user(&me, &me, target_p); |
1067 | } | |
1068 | else | |
1069 | { | |
1070 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, | |
1071 | form_str(ERR_NICKCOLLISION), target_p->name); | |
1072 | ||
1073 | /* kill the client who existed before hand */ | |
1074 | kill_client_serv_butone(client_p, target_p, "%s (Nick collision)", me.name); | |
1075 | ||
83251205 | 1076 | ServerStats.is_kill++; |
212380e3 | 1077 | |
1078 | target_p->flags |= FLAGS_KILLED; | |
1079 | (void) exit_client(client_p, target_p, &me, "Nick collision"); | |
1080 | } | |
1081 | } | |
1082 | } | |
1083 | ||
1084 | change_remote_nick(client_p, source_p, newts, nick, 1); | |
1085 | ||
1086 | return 0; | |
1087 | } | |
1088 | ||
1089 | static int | |
1090 | register_client(struct Client *client_p, struct Client *server, | |
1091 | const char *nick, time_t newts, int parc, const char *parv[]) | |
1092 | { | |
1093 | struct Client *source_p; | |
1094 | struct User *user; | |
1095 | struct nd_entry *nd; | |
1096 | const char *m; | |
1097 | int flag; | |
1098 | ||
1099 | source_p = make_client(client_p); | |
1100 | user = make_user(source_p); | |
bfccb2c0 | 1101 | rb_dlinkAddTail(source_p, &source_p->node, &global_client_list); |
212380e3 | 1102 | |
1103 | source_p->hopcount = atoi(parv[2]); | |
1104 | source_p->tsinfo = newts; | |
1105 | ||
1106 | strcpy(source_p->name, nick); | |
907468c4 VY |
1107 | rb_strlcpy(source_p->username, parv[5], sizeof(source_p->username)); |
1108 | rb_strlcpy(source_p->host, parv[6], sizeof(source_p->host)); | |
1109 | rb_strlcpy(source_p->orighost, source_p->host, sizeof(source_p->orighost)); | |
212380e3 | 1110 | |
1111 | if(parc == 12) | |
1112 | { | |
907468c4 VY |
1113 | rb_strlcpy(source_p->info, parv[11], sizeof(source_p->info)); |
1114 | rb_strlcpy(source_p->sockhost, parv[7], sizeof(source_p->sockhost)); | |
1115 | rb_strlcpy(source_p->id, parv[8], sizeof(source_p->id)); | |
212380e3 | 1116 | add_to_id_hash(source_p->id, source_p); |
1117 | if (strcmp(parv[9], "*")) | |
1118 | { | |
907468c4 | 1119 | rb_strlcpy(source_p->orighost, parv[9], sizeof(source_p->orighost)); |
212380e3 | 1120 | if (irccmp(source_p->host, source_p->orighost)) |
1121 | SetDynSpoof(source_p); | |
1122 | } | |
1123 | if (strcmp(parv[10], "*")) | |
907468c4 | 1124 | rb_strlcpy(source_p->user->suser, parv[10], sizeof(source_p->user->suser)); |
212380e3 | 1125 | } |
1126 | else if(parc == 10) | |
1127 | { | |
907468c4 VY |
1128 | rb_strlcpy(source_p->info, parv[9], sizeof(source_p->info)); |
1129 | rb_strlcpy(source_p->sockhost, parv[7], sizeof(source_p->sockhost)); | |
1130 | rb_strlcpy(source_p->id, parv[8], sizeof(source_p->id)); | |
212380e3 | 1131 | add_to_id_hash(source_p->id, source_p); |
1132 | } | |
1133 | else | |
1134 | { | |
1c4d0f3c | 1135 | s_assert(0); |
212380e3 | 1136 | } |
1137 | ||
1138 | /* remove any nd entries for this nick */ | |
b37021a4 | 1139 | if((nd = irc_dictionary_retrieve(nd_dict, nick))) |
212380e3 | 1140 | free_nd_entry(nd); |
1141 | ||
1142 | add_to_client_hash(nick, source_p); | |
66b4a7ae | 1143 | add_to_hostname_hash(source_p->orighost, source_p); |
212380e3 | 1144 | monitor_signon(source_p); |
1145 | ||
1146 | m = &parv[4][1]; | |
1147 | while(*m) | |
1148 | { | |
1149 | flag = user_modes[(unsigned char) *m]; | |
1150 | ||
1151 | if(flag & UMODE_SERVICE) | |
1152 | { | |
1153 | int hit = 0; | |
08d11e34 | 1154 | rb_dlink_node *ptr; |
212380e3 | 1155 | |
08d11e34 | 1156 | RB_DLINK_FOREACH(ptr, service_list.head) |
212380e3 | 1157 | { |
c88cdb00 | 1158 | if(!irccmp((const char *) ptr->data, server->name)) |
212380e3 | 1159 | { |
1160 | hit++; | |
1161 | break; | |
1162 | } | |
1163 | } | |
1164 | ||
1165 | if(!hit) | |
1166 | { | |
1167 | m++; | |
1168 | continue; | |
1169 | } | |
1170 | } | |
1171 | ||
1172 | /* increment +i count if theyre invis */ | |
1173 | if(!(source_p->umodes & UMODE_INVISIBLE) && (flag & UMODE_INVISIBLE)) | |
1174 | Count.invisi++; | |
1175 | ||
1176 | /* increment opered count if theyre opered */ | |
1177 | if(!(source_p->umodes & UMODE_OPER) && (flag & UMODE_OPER)) | |
1178 | Count.oper++; | |
1179 | ||
1180 | source_p->umodes |= flag; | |
1181 | m++; | |
1182 | } | |
1183 | ||
1184 | if(IsOper(source_p) && !IsService(source_p)) | |
bfccb2c0 | 1185 | rb_dlinkAddAlloc(source_p, &oper_list); |
212380e3 | 1186 | |
1187 | SetRemoteClient(source_p); | |
1188 | ||
1189 | if(++Count.total > Count.max_tot) | |
1190 | Count.max_tot = Count.total; | |
1191 | ||
64449595 | 1192 | source_p->servptr = server; |
212380e3 | 1193 | |
bfccb2c0 | 1194 | rb_dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->users); |
212380e3 | 1195 | |
212380e3 | 1196 | call_hook(h_new_remote_user, source_p); |
1197 | ||
1198 | return (introduce_client(client_p, source_p, user, nick, parc == 12)); | |
1199 | } | |
1200 | ||
1201 | /* Check if we can do SAVE. target_p can be a client to save or a | |
1202 | * server introducing a client -- jilles */ | |
1203 | static int | |
1204 | can_save(struct Client *target_p) | |
1205 | { | |
1206 | struct Client *serv_p; | |
1207 | ||
1208 | if (MyClient(target_p)) | |
1209 | return 1; | |
1210 | if (!has_id(target_p)) | |
1211 | return 0; | |
1212 | serv_p = IsServer(target_p) ? target_p : target_p->servptr; | |
1213 | while (serv_p != NULL && serv_p != &me) | |
1214 | { | |
1215 | if (!(serv_p->serv->caps & CAP_SAVE)) | |
1216 | return 0; | |
1217 | serv_p = serv_p->servptr; | |
1218 | } | |
1219 | return serv_p == &me; | |
1220 | } | |
1221 | ||
1222 | static void | |
1223 | save_user(struct Client *client_p, struct Client *source_p, | |
1224 | struct Client *target_p) | |
1225 | { | |
1226 | if (!MyConnect(target_p) && (!has_id(target_p) || !IsCapable(target_p->from, CAP_SAVE))) | |
1227 | { | |
1228 | /* This shouldn't happen */ | |
1229 | /* Note we only need SAVE support in this direction */ | |
1230 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1231 | "Killed %s!%s@%s for nick collision detected by %s (%s does not support SAVE)", | |
1232 | target_p->name, target_p->username, target_p->host, source_p->name, target_p->from->name); | |
1233 | kill_client_serv_butone(NULL, target_p, "%s (Nick collision (no SAVE support))", me.name); | |
83251205 | 1234 | ServerStats.is_kill++; |
212380e3 | 1235 | |
1236 | target_p->flags |= FLAGS_KILLED; | |
1237 | (void) exit_client(NULL, target_p, &me, "Nick collision (no SAVE support)"); | |
1238 | return; | |
1239 | } | |
1240 | sendto_server(client_p, NULL, CAP_SAVE|CAP_TS6, NOCAPS, ":%s SAVE %s %ld", | |
1241 | source_p->id, target_p->id, (long)target_p->tsinfo); | |
1242 | sendto_server(client_p, NULL, CAP_TS6, CAP_SAVE, ":%s NICK %s :%ld", | |
3f7e0642 | 1243 | target_p->id, target_p->id, (long)SAVE_NICKTS); |
212380e3 | 1244 | if (!IsMe(client_p)) |
1245 | sendto_realops_snomask(SNO_SKILL, L_ALL, | |
1246 | "Received SAVE message for %s from %s", | |
1247 | target_p->name, source_p->name); | |
1248 | if (MyClient(target_p)) | |
1249 | { | |
1250 | sendto_one_numeric(target_p, RPL_SAVENICK, | |
1251 | form_str(RPL_SAVENICK), target_p->id); | |
1252 | change_local_nick(target_p, target_p, target_p->id, 0); | |
3f7e0642 | 1253 | target_p->tsinfo = SAVE_NICKTS; |
212380e3 | 1254 | } |
1255 | else | |
3f7e0642 | 1256 | change_remote_nick(target_p, target_p, SAVE_NICKTS, target_p->id, 0); |
212380e3 | 1257 | } |
0624f969 JT |
1258 | |
1259 | static void bad_nickname(struct Client *client_p, const char *nick) | |
1260 | { | |
1261 | char squitreason[100]; | |
1262 | ||
1263 | sendto_wallops_flags(UMODE_WALLOP, &me, | |
1264 | "Squitting %s because of bad nickname %s (NICKLEN mismatch?)", | |
1265 | client_p->name, nick); | |
1266 | sendto_server(NULL, NULL, CAP_TS6, NOCAPS, | |
1267 | ":%s WALLOPS :Squitting %s because of bad nickname %s (NICKLEN mismatch?)", | |
1268 | me.id, client_p->name, nick); | |
ffa772f3 JT |
1269 | ilog(L_SERVER, "Link %s cancelled, bad nickname %s sent (NICKLEN mismatch?)", |
1270 | client_p->name, nick); | |
0624f969 JT |
1271 | |
1272 | rb_snprintf(squitreason, sizeof squitreason, | |
1273 | "Bad nickname introduced [%s]", nick); | |
1274 | exit_client(client_p, client_p, &me, squitreason); | |
1275 | } |