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Commit | Line | Data |
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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 | |
212380e3 AC |
23 | */ |
24 | ||
25 | #include "stdinc.h" | |
26 | #include "client.h" | |
27 | #include "hash.h" | |
4562c604 | 28 | #include "match.h" |
212380e3 AC |
29 | #include "ircd.h" |
30 | #include "numeric.h" | |
31 | #include "s_conf.h" | |
32 | #include "s_stats.h" | |
33 | #include "s_user.h" | |
34 | #include "hash.h" | |
35 | #include "whowas.h" | |
36 | #include "s_serv.h" | |
37 | #include "send.h" | |
38 | #include "channel.h" | |
4016731b | 39 | #include "logger.h" |
212380e3 AC |
40 | #include "msg.h" |
41 | #include "parse.h" | |
42 | #include "modules.h" | |
43 | #include "common.h" | |
44 | #include "packet.h" | |
45 | #include "scache.h" | |
46 | #include "s_newconf.h" | |
47 | #include "monitor.h" | |
77d3d2db | 48 | #include "s_assert.h" |
212380e3 | 49 | |
3f7e0642 JT |
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 | ||
428ca87b AC |
57 | static int mr_nick(struct MsgBuf *, struct Client *, struct Client *, int, const char **); |
58 | static int m_nick(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
59 | static int mc_nick(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
60 | static int ms_nick(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
61 | static int ms_uid(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
62 | static int ms_euid(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
63 | static int ms_save(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
212380e3 AC |
64 | static int can_save(struct Client *); |
65 | static void save_user(struct Client *, struct Client *, struct Client *); | |
ad35b2cd | 66 | static void bad_nickname(struct Client *, const char *); |
212380e3 AC |
67 | |
68 | struct Message nick_msgtab = { | |
7baa37a9 | 69 | "NICK", 0, 0, 0, 0, |
6c77f1f7 | 70 | {{mr_nick, 0}, {m_nick, 0}, {mc_nick, 3}, {ms_nick, 0}, mg_ignore, {m_nick, 0}} |
212380e3 AC |
71 | }; |
72 | struct Message uid_msgtab = { | |
7baa37a9 | 73 | "UID", 0, 0, 0, 0, |
212380e3 AC |
74 | {mg_ignore, mg_ignore, mg_ignore, {ms_uid, 9}, mg_ignore, mg_ignore} |
75 | }; | |
76 | struct Message euid_msgtab = { | |
7baa37a9 | 77 | "EUID", 0, 0, 0, 0, |
212380e3 AC |
78 | {mg_ignore, mg_ignore, mg_ignore, {ms_euid, 12}, mg_ignore, mg_ignore} |
79 | }; | |
80 | struct Message save_msgtab = { | |
7baa37a9 | 81 | "SAVE", 0, 0, 0, 0, |
212380e3 AC |
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 | ||
105a4985 | 88 | DECLARE_MODULE_AV2(nick, NULL, NULL, nick_clist, NULL, NULL, NULL, NULL, NULL); |
212380e3 AC |
89 | |
90 | static int change_remote_nick(struct Client *, struct Client *, time_t, | |
91 | const char *, int); | |
92 | ||
212380e3 AC |
93 | static int clean_username(const char *); |
94 | static int clean_host(const char *); | |
561d7efc | 95 | static int clean_uid(const char *uid, const char *sid); |
212380e3 AC |
96 | |
97 | static void set_initial_nick(struct Client *client_p, struct Client *source_p, char *nick); | |
98 | static void change_local_nick(struct Client *client_p, struct Client *source_p, char *nick, int); | |
99 | static int register_client(struct Client *client_p, struct Client *server, | |
100 | const char *nick, time_t newts, int parc, const char *parv[]); | |
101 | ||
102 | static int perform_nick_collides(struct Client *, struct Client *, | |
103 | struct Client *, int, const char **, | |
104 | time_t, const char *, const char *); | |
105 | static int perform_nickchange_collides(struct Client *, struct Client *, | |
106 | struct Client *, int, const char **, time_t, const char *); | |
107 | ||
108 | /* mr_nick() | |
212380e3 AC |
109 | * parv[1] = nickname |
110 | */ | |
111 | static int | |
428ca87b | 112 | mr_nick(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
113 | { |
114 | struct Client *target_p; | |
115 | char nick[NICKLEN]; | |
212380e3 AC |
116 | |
117 | if (strlen(client_p->id) == 3) | |
118 | { | |
119 | exit_client(client_p, client_p, client_p, "Mixing client and server protocol"); | |
120 | return 0; | |
121 | } | |
122 | ||
fda96b89 | 123 | if(parc < 2 || EmptyString(parv[1])) |
212380e3 AC |
124 | { |
125 | sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN), | |
126 | me.name, EmptyString(source_p->name) ? "*" : source_p->name); | |
127 | return 0; | |
128 | } | |
129 | ||
212380e3 | 130 | /* copy the nick and terminate it */ |
b583faf9 | 131 | rb_strlcpy(nick, parv[1], ConfigFileEntry.nicklen); |
212380e3 AC |
132 | |
133 | /* check the nickname is ok */ | |
134 | if(!clean_nick(nick, 1)) | |
135 | { | |
136 | sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), | |
3dfaa671 | 137 | me.name, EmptyString(source_p->name) ? "*" : source_p->name, parv[1]); |
212380e3 AC |
138 | return 0; |
139 | } | |
140 | ||
141 | /* check if the nick is resv'd */ | |
142 | if(find_nick_resv(nick)) | |
143 | { | |
144 | sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), | |
145 | me.name, EmptyString(source_p->name) ? "*" : source_p->name, nick); | |
146 | return 0; | |
147 | } | |
148 | ||
a4bf26dd | 149 | if(rb_dictionary_find(nd_dict, nick)) |
212380e3 AC |
150 | { |
151 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
152 | me.name, EmptyString(source_p->name) ? "*" : source_p->name, nick); | |
153 | return 0; | |
154 | } | |
155 | ||
156 | if((target_p = find_named_client(nick)) == NULL) | |
157 | set_initial_nick(client_p, source_p, nick); | |
158 | else if(source_p == target_p) | |
159 | strcpy(source_p->name, nick); | |
160 | else | |
161 | sendto_one(source_p, form_str(ERR_NICKNAMEINUSE), me.name, "*", nick); | |
162 | ||
163 | return 0; | |
164 | } | |
165 | ||
166 | /* m_nick() | |
212380e3 AC |
167 | * parv[1] = nickname |
168 | */ | |
169 | static int | |
428ca87b | 170 | m_nick(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
171 | { |
172 | struct Client *target_p; | |
173 | char nick[NICKLEN]; | |
212380e3 | 174 | |
fda96b89 | 175 | if(parc < 2 || EmptyString(parv[1])) |
212380e3 AC |
176 | { |
177 | sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN), me.name, source_p->name); | |
178 | return 0; | |
179 | } | |
180 | ||
212380e3 AC |
181 | /* mark end of grace period, to prevent nickflooding */ |
182 | if(!IsFloodDone(source_p)) | |
183 | flood_endgrace(source_p); | |
184 | ||
185 | /* terminate nick to NICKLEN, we dont want clean_nick() to error! */ | |
b583faf9 | 186 | rb_strlcpy(nick, parv[1], ConfigFileEntry.nicklen); |
212380e3 AC |
187 | |
188 | /* check the nickname is ok */ | |
189 | if(!clean_nick(nick, 1)) | |
190 | { | |
3dfaa671 | 191 | sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), me.name, source_p->name, nick); |
212380e3 AC |
192 | return 0; |
193 | } | |
194 | ||
195 | if(!IsExemptResv(source_p) && find_nick_resv(nick)) | |
196 | { | |
197 | sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), me.name, source_p->name, nick); | |
198 | return 0; | |
199 | } | |
200 | ||
a4bf26dd | 201 | if(rb_dictionary_find(nd_dict, nick)) |
212380e3 AC |
202 | { |
203 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
204 | me.name, EmptyString(source_p->name) ? "*" : source_p->name, nick); | |
205 | return 0; | |
206 | } | |
207 | ||
208 | if((target_p = find_named_client(nick))) | |
209 | { | |
210 | /* If(target_p == source_p) the client is changing nicks between | |
211 | * equivalent nicknames ie: [nick] -> {nick} | |
212 | */ | |
213 | if(target_p == source_p) | |
214 | { | |
215 | /* check the nick isnt exactly the same */ | |
216 | if(strcmp(target_p->name, nick)) | |
217 | change_local_nick(client_p, source_p, nick, 1); | |
218 | ||
219 | } | |
220 | ||
221 | /* drop unregged client */ | |
222 | else if(IsUnknown(target_p)) | |
223 | { | |
224 | exit_client(NULL, target_p, &me, "Overridden"); | |
225 | change_local_nick(client_p, source_p, nick, 1); | |
226 | } | |
227 | else | |
3dfaa671 | 228 | sendto_one(source_p, form_str(ERR_NICKNAMEINUSE), me.name, source_p->name, nick); |
212380e3 AC |
229 | |
230 | return 0; | |
231 | } | |
232 | else | |
233 | change_local_nick(client_p, source_p, nick, 1); | |
234 | ||
235 | return 0; | |
236 | } | |
237 | ||
6c77f1f7 | 238 | /* mc_nick() |
55abcbb2 | 239 | * |
212380e3 | 240 | * server -> server nick change |
212380e3 AC |
241 | * parv[1] = nickname |
242 | * parv[2] = TS when nick change | |
212380e3 AC |
243 | */ |
244 | static int | |
428ca87b | 245 | mc_nick(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
246 | { |
247 | struct Client *target_p; | |
248 | time_t newts = 0; | |
249 | ||
250 | /* if nicks erroneous, or too long, kill */ | |
251 | if(!clean_nick(parv[1], 0)) | |
252 | { | |
ad35b2cd | 253 | bad_nickname(client_p, parv[1]); |
212380e3 AC |
254 | return 0; |
255 | } | |
256 | ||
257 | newts = atol(parv[2]); | |
258 | target_p = find_named_client(parv[1]); | |
259 | ||
260 | /* if the nick doesnt exist, allow it and process like normal */ | |
261 | if(target_p == NULL) | |
262 | { | |
263 | change_remote_nick(client_p, source_p, newts, parv[1], 1); | |
264 | } | |
265 | else if(IsUnknown(target_p)) | |
266 | { | |
267 | exit_client(NULL, target_p, &me, "Overridden"); | |
268 | change_remote_nick(client_p, source_p, newts, parv[1], 1); | |
269 | } | |
270 | else if(target_p == source_p) | |
271 | { | |
272 | /* client changing case of nick */ | |
273 | if(strcmp(target_p->name, parv[1])) | |
274 | change_remote_nick(client_p, source_p, newts, parv[1], 1); | |
275 | } | |
276 | /* we've got a collision! */ | |
277 | else | |
278 | perform_nickchange_collides(source_p, client_p, target_p, | |
279 | parc, parv, newts, parv[1]); | |
280 | ||
281 | return 0; | |
282 | } | |
283 | ||
284 | static int | |
428ca87b | 285 | ms_nick(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 | 286 | { |
6c77f1f7 | 287 | const char *nick, *server; |
212380e3 | 288 | |
6c77f1f7 JT |
289 | nick = parc > 1 ? parv[1] : "?"; |
290 | server = parc > 7 ? parv[7] : "?"; | |
212380e3 | 291 | |
6c77f1f7 JT |
292 | sendto_wallops_flags(UMODE_WALLOP, &me, |
293 | "Link %s cancelled, TS5 nickname %s on %s introduced (old server?)", | |
294 | client_p->name, nick, server); | |
295 | sendto_server(NULL, NULL, CAP_TS6, NOCAPS, | |
296 | ":%s WALLOPS :Link %s cancelled, TS5 nickname %s on %s introduced (old server?)", | |
297 | me.id, client_p->name, nick, server); | |
298 | ilog(L_SERVER, "Link %s cancelled, TS5 nickname %s on %s introduced (old server?)", | |
299 | client_p->name, nick, server); | |
212380e3 | 300 | |
6c77f1f7 | 301 | exit_client(client_p, client_p, &me, "TS5 nickname introduced"); |
212380e3 AC |
302 | |
303 | return 0; | |
304 | } | |
305 | ||
306 | /* ms_uid() | |
307 | * parv[1] - nickname | |
308 | * parv[2] - hops | |
309 | * parv[3] - TS | |
310 | * parv[4] - umodes | |
311 | * parv[5] - username | |
312 | * parv[6] - hostname | |
313 | * parv[7] - IP | |
314 | * parv[8] - UID | |
315 | * parv[9] - gecos | |
316 | */ | |
317 | static int | |
428ca87b | 318 | ms_uid(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
319 | { |
320 | struct Client *target_p; | |
321 | time_t newts = 0; | |
4a5655b2 | 322 | char squitreason[120]; |
212380e3 AC |
323 | |
324 | newts = atol(parv[3]); | |
325 | ||
326 | if(parc != 10) | |
327 | { | |
328 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
329 | "Dropping server %s due to (invalid) command 'UID' " | |
330 | "with %d arguments (expecting 10)", client_p->name, parc); | |
331 | ilog(L_SERVER, "Excess parameters (%d) for command 'UID' from %s.", | |
332 | parc, client_p->name); | |
5203cba5 | 333 | snprintf(squitreason, sizeof squitreason, |
56023eb2 JT |
334 | "Excess parameters (%d) to %s command, expecting %d", |
335 | parc, "UID", 10); | |
336 | exit_client(client_p, client_p, client_p, squitreason); | |
212380e3 AC |
337 | return 0; |
338 | } | |
339 | ||
340 | /* if nicks erroneous, or too long, kill */ | |
341 | if(!clean_nick(parv[1], 0)) | |
342 | { | |
ad35b2cd | 343 | bad_nickname(client_p, parv[1]); |
212380e3 AC |
344 | return 0; |
345 | } | |
346 | ||
561d7efc | 347 | if(!clean_uid(parv[8], source_p->id)) |
212380e3 | 348 | { |
5203cba5 | 349 | snprintf(squitreason, sizeof squitreason, |
e0c7937a JT |
350 | "Invalid UID %s for nick %s on %s/%s", |
351 | parv[8], parv[1], source_p->name, source_p->id); | |
4a5655b2 | 352 | exit_client(client_p, client_p, client_p, squitreason); |
212380e3 AC |
353 | return 0; |
354 | } | |
355 | ||
4a5655b2 | 356 | if(!clean_username(parv[5]) || !clean_host(parv[6])) |
212380e3 | 357 | { |
47adde3d | 358 | ServerStats.is_kill++; |
212380e3 | 359 | sendto_realops_snomask(SNO_DEBUG, L_ALL, |
4a5655b2 JT |
360 | "Bad user@host: %s@%s From: %s(via %s)", |
361 | parv[5], parv[6], source_p->name, client_p->name); | |
362 | sendto_one(client_p, ":%s KILL %s :%s (Bad user@host)", me.id, parv[8], me.name); | |
212380e3 AC |
363 | return 0; |
364 | } | |
365 | ||
366 | /* check length of clients gecos */ | |
367 | if(strlen(parv[9]) > REALLEN) | |
368 | { | |
369 | char *s = LOCAL_COPY(parv[9]); | |
370 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "Long realname from server %s for %s", | |
3dfaa671 | 371 | source_p->name, parv[1]); |
212380e3 AC |
372 | s[REALLEN] = '\0'; |
373 | parv[9] = s; | |
374 | } | |
375 | ||
376 | target_p = find_named_client(parv[1]); | |
377 | ||
378 | if(target_p == NULL) | |
379 | { | |
380 | register_client(client_p, source_p, parv[1], newts, parc, parv); | |
381 | } | |
382 | else if(IsUnknown(target_p)) | |
383 | { | |
384 | exit_client(NULL, target_p, &me, "Overridden"); | |
385 | register_client(client_p, source_p, parv[1], newts, parc, parv); | |
386 | } | |
387 | /* we've got a collision! */ | |
388 | else | |
389 | perform_nick_collides(source_p, client_p, target_p, parc, parv, | |
390 | newts, parv[1], parv[8]); | |
391 | ||
392 | return 0; | |
393 | } | |
394 | ||
395 | /* ms_euid() | |
396 | * parv[1] - nickname | |
397 | * parv[2] - hops | |
398 | * parv[3] - TS | |
399 | * parv[4] - umodes | |
400 | * parv[5] - username | |
401 | * parv[6] - hostname | |
402 | * parv[7] - IP | |
403 | * parv[8] - UID | |
404 | * parv[9] - realhost | |
405 | * parv[10] - account | |
406 | * parv[11] - gecos | |
407 | */ | |
408 | static int | |
428ca87b | 409 | ms_euid(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
410 | { |
411 | struct Client *target_p; | |
412 | time_t newts = 0; | |
4a5655b2 | 413 | char squitreason[120]; |
212380e3 AC |
414 | |
415 | newts = atol(parv[3]); | |
416 | ||
417 | if(parc != 12) | |
418 | { | |
419 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
420 | "Dropping server %s due to (invalid) command 'EUID' " | |
421 | "with %d arguments (expecting 12)", client_p->name, parc); | |
422 | ilog(L_SERVER, "Excess parameters (%d) for command 'EUID' from %s.", | |
423 | parc, client_p->name); | |
5203cba5 | 424 | snprintf(squitreason, sizeof squitreason, |
56023eb2 JT |
425 | "Excess parameters (%d) to %s command, expecting %d", |
426 | parc, "EUID", 12); | |
427 | exit_client(client_p, client_p, client_p, squitreason); | |
212380e3 AC |
428 | return 0; |
429 | } | |
430 | ||
431 | /* if nicks erroneous, or too long, kill */ | |
432 | if(!clean_nick(parv[1], 0)) | |
433 | { | |
ad35b2cd | 434 | bad_nickname(client_p, parv[1]); |
212380e3 AC |
435 | return 0; |
436 | } | |
437 | ||
561d7efc | 438 | if(!clean_uid(parv[8], source_p->id)) |
212380e3 | 439 | { |
5203cba5 | 440 | snprintf(squitreason, sizeof squitreason, |
e0c7937a JT |
441 | "Invalid UID %s for nick %s on %s/%s", |
442 | parv[8], parv[1], source_p->name, source_p->id); | |
4a5655b2 | 443 | exit_client(client_p, client_p, client_p, squitreason); |
212380e3 AC |
444 | return 0; |
445 | } | |
446 | ||
4a5655b2 | 447 | if(!clean_username(parv[5]) || !clean_host(parv[6])) |
212380e3 | 448 | { |
47adde3d | 449 | ServerStats.is_kill++; |
212380e3 | 450 | sendto_realops_snomask(SNO_DEBUG, L_ALL, |
4a5655b2 JT |
451 | "Bad user@host: %s@%s From: %s(via %s)", |
452 | parv[5], parv[6], source_p->name, client_p->name); | |
453 | sendto_one(client_p, ":%s KILL %s :%s (Bad user@host)", me.id, parv[8], me.name); | |
212380e3 AC |
454 | return 0; |
455 | } | |
456 | ||
457 | if(strcmp(parv[9], "*") && !clean_host(parv[9])) | |
458 | { | |
47adde3d | 459 | ServerStats.is_kill++; |
212380e3 AC |
460 | sendto_realops_snomask(SNO_DEBUG, L_ALL, |
461 | "Bad realhost: %s From: %s(via %s)", | |
462 | parv[9], source_p->name, client_p->name); | |
463 | sendto_one(client_p, ":%s KILL %s :%s (Bad user@host)", me.id, parv[8], me.name); | |
464 | return 0; | |
465 | } | |
466 | ||
467 | /* check length of clients gecos */ | |
468 | if(strlen(parv[11]) > REALLEN) | |
469 | { | |
470 | char *s = LOCAL_COPY(parv[11]); | |
471 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "Long realname from server %s for %s", | |
3dfaa671 | 472 | source_p->name, parv[1]); |
212380e3 AC |
473 | s[REALLEN] = '\0'; |
474 | parv[11] = s; | |
475 | } | |
476 | ||
477 | target_p = find_named_client(parv[1]); | |
478 | ||
479 | if(target_p == NULL) | |
480 | { | |
481 | register_client(client_p, source_p, parv[1], newts, parc, parv); | |
482 | } | |
483 | else if(IsUnknown(target_p)) | |
484 | { | |
485 | exit_client(NULL, target_p, &me, "Overridden"); | |
486 | register_client(client_p, source_p, parv[1], newts, parc, parv); | |
487 | } | |
488 | /* we've got a collision! */ | |
489 | else | |
490 | perform_nick_collides(source_p, client_p, target_p, parc, parv, | |
491 | newts, parv[1], parv[8]); | |
492 | ||
493 | return 0; | |
494 | } | |
495 | ||
496 | /* ms_save() | |
497 | * parv[1] - UID | |
498 | * parv[2] - TS | |
499 | */ | |
500 | static int | |
428ca87b | 501 | ms_save(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
502 | { |
503 | struct Client *target_p; | |
504 | ||
505 | target_p = find_id(parv[1]); | |
506 | if (target_p == NULL) | |
507 | return 0; | |
508 | if (!IsPerson(target_p)) | |
509 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
510 | "Ignored SAVE message for non-person %s from %s", | |
511 | target_p->name, source_p->name); | |
512 | else if (IsDigit(target_p->name[0])) | |
513 | sendto_realops_snomask(SNO_DEBUG, L_ALL, | |
514 | "Ignored noop SAVE message for %s from %s", | |
515 | target_p->name, source_p->name); | |
516 | else if (target_p->tsinfo == atol(parv[2])) | |
517 | save_user(client_p, source_p, target_p); | |
518 | else | |
519 | sendto_realops_snomask(SNO_SKILL, L_ALL, | |
520 | "Ignored SAVE message for %s from %s", | |
521 | target_p->name, source_p->name); | |
522 | return 0; | |
523 | } | |
524 | ||
212380e3 AC |
525 | /* clean_username() |
526 | * | |
527 | * input - username to check | |
528 | * output - 0 if erroneous, else 0 | |
529 | * side effects - | |
530 | */ | |
531 | static int | |
532 | clean_username(const char *username) | |
533 | { | |
534 | int len = 0; | |
535 | ||
536 | for(; *username; username++) | |
537 | { | |
538 | len++; | |
539 | ||
540 | if(!IsUserChar(*username)) | |
541 | return 0; | |
542 | } | |
543 | ||
544 | if(len > USERLEN) | |
545 | return 0; | |
546 | ||
547 | return 1; | |
548 | } | |
549 | ||
550 | /* clean_host() | |
551 | * | |
552 | * input - host to check | |
553 | * output - 0 if erroneous, else 0 | |
554 | * side effects - | |
555 | */ | |
556 | static int | |
557 | clean_host(const char *host) | |
558 | { | |
559 | int len = 0; | |
560 | ||
561 | for(; *host; host++) | |
562 | { | |
563 | len++; | |
564 | ||
565 | if(!IsHostChar(*host)) | |
566 | return 0; | |
567 | } | |
568 | ||
569 | if(len > HOSTLEN) | |
570 | return 0; | |
571 | ||
572 | return 1; | |
573 | } | |
574 | ||
575 | static int | |
561d7efc | 576 | clean_uid(const char *uid, const char *sid) |
212380e3 AC |
577 | { |
578 | int len = 1; | |
579 | ||
561d7efc JT |
580 | if(strncmp(uid, sid, strlen(sid))) |
581 | return 0; | |
582 | ||
212380e3 AC |
583 | if(!IsDigit(*uid++)) |
584 | return 0; | |
585 | ||
586 | for(; *uid; uid++) | |
587 | { | |
588 | len++; | |
589 | ||
590 | if(!IsIdChar(*uid)) | |
591 | return 0; | |
592 | } | |
593 | ||
594 | if(len != IDLEN - 1) | |
595 | return 0; | |
596 | ||
597 | return 1; | |
598 | } | |
599 | ||
600 | static void | |
601 | set_initial_nick(struct Client *client_p, struct Client *source_p, char *nick) | |
602 | { | |
0e7cb7e6 | 603 | char note[NICKLEN + 10]; |
212380e3 AC |
604 | |
605 | /* This had to be copied here to avoid problems.. */ | |
e3354945 | 606 | source_p->tsinfo = rb_current_time(); |
212380e3 AC |
607 | if(source_p->name[0]) |
608 | del_from_client_hash(source_p->name, source_p); | |
609 | ||
610 | strcpy(source_p->name, nick); | |
611 | add_to_client_hash(nick, source_p); | |
612 | ||
5203cba5 | 613 | snprintf(note, sizeof(note), "Nick: %s", nick); |
0e7cb7e6 | 614 | rb_note(client_p->localClient->F, note); |
212380e3 AC |
615 | |
616 | if(source_p->flags & FLAGS_SENTUSER) | |
617 | { | |
212380e3 | 618 | /* got user, heres nick. */ |
21251822 | 619 | register_local_user(client_p, source_p); |
212380e3 AC |
620 | } |
621 | } | |
622 | ||
623 | static void | |
624 | change_local_nick(struct Client *client_p, struct Client *source_p, | |
625 | char *nick, int dosend) | |
626 | { | |
627 | struct Client *target_p; | |
637c4932 | 628 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 629 | struct Channel *chptr; |
0e7cb7e6 | 630 | char note[NICKLEN + 10]; |
212380e3 AC |
631 | int samenick; |
632 | ||
633 | if (dosend) | |
634 | { | |
635 | chptr = find_bannickchange_channel(source_p); | |
636 | if (chptr != NULL) | |
637 | { | |
638 | sendto_one_numeric(source_p, ERR_BANNICKCHANGE, | |
639 | form_str(ERR_BANNICKCHANGE), | |
640 | nick, chptr->chname); | |
641 | return; | |
642 | } | |
e3354945 | 643 | if((source_p->localClient->last_nick_change + ConfigFileEntry.max_nick_time) < rb_current_time()) |
212380e3 AC |
644 | source_p->localClient->number_of_nick_changes = 0; |
645 | ||
e3354945 | 646 | source_p->localClient->last_nick_change = rb_current_time(); |
212380e3 AC |
647 | source_p->localClient->number_of_nick_changes++; |
648 | ||
649 | if(ConfigFileEntry.anti_nick_flood && !IsOper(source_p) && | |
650 | source_p->localClient->number_of_nick_changes > ConfigFileEntry.max_nick_changes) | |
651 | { | |
652 | sendto_one(source_p, form_str(ERR_NICKTOOFAST), | |
653 | me.name, source_p->name, source_p->name, | |
654 | nick, ConfigFileEntry.max_nick_time); | |
655 | return; | |
656 | } | |
657 | } | |
658 | ||
659 | samenick = irccmp(source_p->name, nick) ? 0 : 1; | |
660 | ||
661 | /* dont reset TS if theyre just changing case of nick */ | |
662 | if(!samenick) | |
663 | { | |
95ffa685 | 664 | /* force the TS to increase -- jilles */ |
e3354945 | 665 | if (source_p->tsinfo >= rb_current_time()) |
95ffa685 JT |
666 | source_p->tsinfo++; |
667 | else | |
e3354945 | 668 | source_p->tsinfo = rb_current_time(); |
212380e3 AC |
669 | monitor_signoff(source_p); |
670 | /* we only do bancache for local users -- jilles */ | |
671 | if(source_p->user) | |
672 | invalidate_bancache_user(source_p); | |
673 | } | |
674 | ||
675 | sendto_realops_snomask(SNO_NCHANGE, L_ALL, | |
676 | "Nick change: From %s to %s [%s@%s]", | |
677 | source_p->name, nick, source_p->username, source_p->host); | |
678 | ||
679 | /* send the nick change to the users channels */ | |
583f064f | 680 | sendto_common_channels_local(source_p, NOCAPS, NOCAPS, ":%s!%s@%s NICK :%s", |
212380e3 AC |
681 | source_p->name, source_p->username, source_p->host, nick); |
682 | ||
683 | /* send the nick change to servers.. */ | |
684 | if(source_p->user) | |
685 | { | |
b47f8a4f | 686 | whowas_add_history(source_p, 1); |
212380e3 AC |
687 | |
688 | if (dosend) | |
689 | { | |
690 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s NICK %s :%ld", | |
691 | use_id(source_p), nick, (long) source_p->tsinfo); | |
212380e3 AC |
692 | } |
693 | } | |
694 | ||
695 | /* Finally, add to hash */ | |
696 | del_from_client_hash(source_p->name, source_p); | |
697 | strcpy(source_p->name, nick); | |
698 | add_to_client_hash(nick, source_p); | |
699 | ||
700 | if(!samenick) | |
701 | monitor_signon(source_p); | |
702 | ||
703 | /* Make sure everyone that has this client on its accept list | |
55abcbb2 | 704 | * loses that reference. |
212380e3 AC |
705 | */ |
706 | /* we used to call del_all_accepts() here, but theres no real reason | |
707 | * to clear a clients own list of accepted clients. So just remove | |
708 | * them from everyone elses list --anfl | |
709 | */ | |
637c4932 | 710 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, source_p->on_allow_list.head) |
212380e3 AC |
711 | { |
712 | target_p = ptr->data; | |
713 | ||
555ac41f JT |
714 | rb_dlinkFindDestroy(source_p, &target_p->localClient->allow_list); |
715 | rb_dlinkDestroy(ptr, &source_p->on_allow_list); | |
212380e3 AC |
716 | } |
717 | ||
5203cba5 | 718 | snprintf(note, sizeof(note), "Nick: %s", nick); |
0e7cb7e6 | 719 | rb_note(client_p->localClient->F, note); |
212380e3 AC |
720 | |
721 | return; | |
722 | } | |
723 | ||
724 | /* | |
725 | * change_remote_nick() | |
726 | */ | |
727 | static int | |
728 | change_remote_nick(struct Client *client_p, struct Client *source_p, | |
729 | time_t newts, const char *nick, int dosend) | |
730 | { | |
731 | struct nd_entry *nd; | |
732 | int samenick = irccmp(source_p->name, nick) ? 0 : 1; | |
733 | ||
734 | /* client changing their nick - dont reset ts if its same */ | |
735 | if(!samenick) | |
736 | { | |
e3354945 | 737 | source_p->tsinfo = newts ? newts : rb_current_time(); |
212380e3 AC |
738 | monitor_signoff(source_p); |
739 | } | |
740 | ||
583f064f | 741 | sendto_common_channels_local(source_p, NOCAPS, NOCAPS, ":%s!%s@%s NICK :%s", |
212380e3 AC |
742 | source_p->name, source_p->username, source_p->host, nick); |
743 | ||
744 | if(source_p->user) | |
745 | { | |
b47f8a4f | 746 | whowas_add_history(source_p, 1); |
212380e3 AC |
747 | if (dosend) |
748 | { | |
749 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s NICK %s :%ld", | |
750 | use_id(source_p), nick, (long) source_p->tsinfo); | |
212380e3 AC |
751 | } |
752 | } | |
753 | ||
754 | del_from_client_hash(source_p->name, source_p); | |
755 | ||
756 | /* invalidate nick delay when a remote client uses the nick.. */ | |
a4bf26dd | 757 | if((nd = rb_dictionary_retrieve(nd_dict, nick))) |
212380e3 AC |
758 | free_nd_entry(nd); |
759 | ||
760 | strcpy(source_p->name, nick); | |
761 | add_to_client_hash(nick, source_p); | |
762 | ||
763 | if(!samenick) | |
764 | monitor_signon(source_p); | |
765 | ||
766 | /* remove all accepts pointing to the client */ | |
767 | del_all_accepts(source_p); | |
768 | ||
769 | return 0; | |
770 | } | |
771 | ||
772 | static int | |
773 | perform_nick_collides(struct Client *source_p, struct Client *client_p, | |
774 | struct Client *target_p, int parc, const char *parv[], | |
775 | time_t newts, const char *nick, const char *uid) | |
776 | { | |
777 | int sameuser; | |
778 | int use_save; | |
779 | const char *action; | |
780 | ||
781 | use_save = ConfigFileEntry.collision_fnc && can_save(target_p) && | |
782 | uid != NULL && can_save(source_p); | |
783 | action = use_save ? "saved" : "killed"; | |
784 | ||
785 | /* if we dont have a ts, or their TS's are the same, kill both */ | |
786 | if(!newts || !target_p->tsinfo || (newts == target_p->tsinfo)) | |
787 | { | |
9d107a71 | 788 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
789 | "Nick collision on %s(%s <- %s)(both %s)", |
790 | target_p->name, target_p->from->name, client_p->name, action); | |
791 | ||
792 | if (use_save) | |
793 | { | |
794 | save_user(&me, &me, target_p); | |
47adde3d | 795 | ServerStats.is_save++; |
212380e3 AC |
796 | sendto_one(client_p, ":%s SAVE %s %ld", me.id, |
797 | uid, (long)newts); | |
798 | register_client(client_p, source_p, | |
3f7e0642 | 799 | uid, SAVE_NICKTS, parc, parv); |
212380e3 AC |
800 | } |
801 | else | |
802 | { | |
803 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, | |
804 | form_str(ERR_NICKCOLLISION), target_p->name); | |
805 | ||
806 | /* if the new client being introduced has a UID, we need to | |
807 | * issue a KILL for it.. | |
808 | */ | |
809 | if(uid) | |
810 | sendto_one(client_p, ":%s KILL %s :%s (Nick collision (new))", | |
811 | me.id, uid, me.name); | |
812 | ||
813 | /* we then need to KILL the old client everywhere */ | |
814 | kill_client_serv_butone(NULL, target_p, "%s (Nick collision (new))", me.name); | |
47adde3d | 815 | ServerStats.is_kill++; |
212380e3 AC |
816 | |
817 | target_p->flags |= FLAGS_KILLED; | |
818 | exit_client(client_p, target_p, &me, "Nick collision (new)"); | |
819 | } | |
820 | return 0; | |
821 | } | |
822 | /* the timestamps are different */ | |
823 | else | |
824 | { | |
825 | sameuser = (target_p->user) && !irccmp(target_p->username, parv[5]) | |
826 | && !irccmp(target_p->host, parv[6]); | |
827 | ||
828 | if((sameuser && newts < target_p->tsinfo) || | |
829 | (!sameuser && newts > target_p->tsinfo)) | |
830 | { | |
831 | /* if we have a UID, then we need to issue a KILL, | |
832 | * otherwise we do nothing and hope that the other | |
833 | * client will collide it.. | |
834 | */ | |
835 | if (use_save) | |
836 | { | |
837 | sendto_one(client_p, ":%s SAVE %s %ld", me.id, | |
838 | uid, (long)newts); | |
839 | register_client(client_p, source_p, | |
3f7e0642 | 840 | uid, SAVE_NICKTS, parc, parv); |
212380e3 AC |
841 | } |
842 | else if(uid) | |
843 | sendto_one(client_p, | |
844 | ":%s KILL %s :%s (Nick collision (new))", | |
845 | me.id, uid, me.name); | |
846 | return 0; | |
847 | } | |
848 | else | |
849 | { | |
850 | if(sameuser) | |
9d107a71 | 851 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
852 | "Nick collision on %s(%s <- %s)(older %s)", |
853 | target_p->name, target_p->from->name, | |
854 | client_p->name, action); | |
855 | else | |
9d107a71 | 856 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
857 | "Nick collision on %s(%s <- %s)(newer %s)", |
858 | target_p->name, target_p->from->name, | |
859 | client_p->name, action); | |
860 | ||
861 | if (use_save) | |
862 | { | |
47adde3d | 863 | ServerStats.is_save++; |
212380e3 AC |
864 | save_user(&me, &me, target_p); |
865 | } | |
866 | else | |
867 | { | |
47adde3d | 868 | ServerStats.is_kill++; |
212380e3 AC |
869 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, |
870 | form_str(ERR_NICKCOLLISION), target_p->name); | |
871 | ||
872 | /* now we just need to kill the existing client */ | |
873 | kill_client_serv_butone(client_p, target_p, | |
874 | "%s (Nick collision (new))", me.name); | |
875 | ||
876 | target_p->flags |= FLAGS_KILLED; | |
877 | (void) exit_client(client_p, target_p, &me, "Nick collision"); | |
878 | } | |
879 | ||
463947ad | 880 | register_client(client_p, source_p, |
212380e3 AC |
881 | nick, newts, parc, parv); |
882 | ||
883 | return 0; | |
884 | } | |
885 | } | |
886 | } | |
887 | ||
888 | ||
889 | static int | |
890 | perform_nickchange_collides(struct Client *source_p, struct Client *client_p, | |
891 | struct Client *target_p, int parc, | |
892 | const char *parv[], time_t newts, const char *nick) | |
893 | { | |
894 | int sameuser; | |
895 | int use_save; | |
896 | const char *action; | |
897 | ||
898 | use_save = ConfigFileEntry.collision_fnc && can_save(target_p) && | |
899 | can_save(source_p); | |
900 | action = use_save ? "saved" : "killed"; | |
901 | ||
902 | /* its a client changing nick and causing a collide */ | |
903 | if(!newts || !target_p->tsinfo || (newts == target_p->tsinfo) || !source_p->user) | |
904 | { | |
9d107a71 | 905 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
906 | "Nick change collision from %s to %s(%s <- %s)(both %s)", |
907 | source_p->name, target_p->name, target_p->from->name, | |
908 | client_p->name, action); | |
909 | ||
910 | if (use_save) | |
911 | { | |
47adde3d | 912 | ServerStats.is_save += 2; |
212380e3 AC |
913 | save_user(&me, &me, target_p); |
914 | sendto_one(client_p, ":%s SAVE %s %ld", me.id, | |
915 | source_p->id, (long)newts); | |
916 | /* don't send a redundant nick change */ | |
917 | if (!IsDigit(source_p->name[0])) | |
3f7e0642 | 918 | change_remote_nick(client_p, source_p, SAVE_NICKTS, source_p->id, 1); |
212380e3 AC |
919 | } |
920 | else | |
921 | { | |
47adde3d | 922 | ServerStats.is_kill++; |
212380e3 AC |
923 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, |
924 | form_str(ERR_NICKCOLLISION), target_p->name); | |
925 | ||
926 | kill_client_serv_butone(NULL, source_p, "%s (Nick change collision)", me.name); | |
927 | ||
47adde3d | 928 | ServerStats.is_kill++; |
212380e3 AC |
929 | |
930 | kill_client_serv_butone(NULL, target_p, "%s (Nick change collision)", me.name); | |
931 | ||
932 | target_p->flags |= FLAGS_KILLED; | |
933 | exit_client(NULL, target_p, &me, "Nick collision(new)"); | |
934 | source_p->flags |= FLAGS_KILLED; | |
935 | exit_client(client_p, source_p, &me, "Nick collision(old)"); | |
936 | } | |
937 | return 0; | |
938 | } | |
939 | else | |
940 | { | |
941 | sameuser = !irccmp(target_p->username, source_p->username) && | |
942 | !irccmp(target_p->host, source_p->host); | |
943 | ||
944 | if((sameuser && newts < target_p->tsinfo) || | |
945 | (!sameuser && newts > target_p->tsinfo)) | |
946 | { | |
947 | if(sameuser) | |
9d107a71 | 948 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
949 | "Nick change collision from %s to %s(%s <- %s)(older %s)", |
950 | source_p->name, target_p->name, | |
951 | target_p->from->name, client_p->name, action); | |
952 | else | |
9d107a71 | 953 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
954 | "Nick change collision from %s to %s(%s <- %s)(newer %s)", |
955 | source_p->name, target_p->name, | |
956 | target_p->from->name, client_p->name, action); | |
957 | ||
958 | if (use_save) | |
959 | { | |
47adde3d | 960 | ServerStats.is_save++; |
212380e3 AC |
961 | /* can't broadcast a SAVE because the |
962 | * nickchange has happened at client_p | |
963 | * but not in other directions -- jilles */ | |
964 | sendto_one(client_p, ":%s SAVE %s %ld", me.id, | |
965 | source_p->id, (long)newts); | |
212380e3 AC |
966 | /* send a :<id> NICK <id> <ts> (!) */ |
967 | if (!IsDigit(source_p->name[0])) | |
3f7e0642 | 968 | change_remote_nick(client_p, source_p, SAVE_NICKTS, source_p->id, 1); |
212380e3 AC |
969 | } |
970 | else | |
971 | { | |
47adde3d | 972 | ServerStats.is_kill++; |
212380e3 | 973 | |
ce782b68 JT |
974 | sendto_one_numeric(source_p, ERR_NICKCOLLISION, |
975 | form_str(ERR_NICKCOLLISION), source_p->name); | |
212380e3 AC |
976 | |
977 | /* kill the client issuing the nickchange */ | |
978 | kill_client_serv_butone(client_p, source_p, | |
979 | "%s (Nick change collision)", me.name); | |
980 | ||
981 | source_p->flags |= FLAGS_KILLED; | |
982 | ||
983 | if(sameuser) | |
984 | exit_client(client_p, source_p, &me, "Nick collision(old)"); | |
985 | else | |
986 | exit_client(client_p, source_p, &me, "Nick collision(new)"); | |
987 | } | |
988 | return 0; | |
989 | } | |
990 | else | |
991 | { | |
992 | if(sameuser) | |
9d107a71 | 993 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
994 | "Nick collision on %s(%s <- %s)(older %s)", |
995 | target_p->name, target_p->from->name, | |
996 | client_p->name, action); | |
997 | else | |
9d107a71 | 998 | sendto_realops_snomask(SNO_SKILL, L_ALL, |
212380e3 AC |
999 | "Nick collision on %s(%s <- %s)(newer %s)", |
1000 | target_p->name, target_p->from->name, | |
1001 | client_p->name, action); | |
1002 | ||
1003 | if (use_save) | |
1004 | { | |
47adde3d | 1005 | ServerStats.is_save++; |
212380e3 AC |
1006 | save_user(&me, &me, target_p); |
1007 | } | |
1008 | else | |
1009 | { | |
1010 | sendto_one_numeric(target_p, ERR_NICKCOLLISION, | |
1011 | form_str(ERR_NICKCOLLISION), target_p->name); | |
1012 | ||
1013 | /* kill the client who existed before hand */ | |
1014 | kill_client_serv_butone(client_p, target_p, "%s (Nick collision)", me.name); | |
1015 | ||
47adde3d | 1016 | ServerStats.is_kill++; |
212380e3 AC |
1017 | |
1018 | target_p->flags |= FLAGS_KILLED; | |
1019 | (void) exit_client(client_p, target_p, &me, "Nick collision"); | |
1020 | } | |
1021 | } | |
1022 | } | |
1023 | ||
1024 | change_remote_nick(client_p, source_p, newts, nick, 1); | |
1025 | ||
1026 | return 0; | |
1027 | } | |
1028 | ||
1029 | static int | |
1030 | register_client(struct Client *client_p, struct Client *server, | |
1031 | const char *nick, time_t newts, int parc, const char *parv[]) | |
1032 | { | |
1033 | struct Client *source_p; | |
1034 | struct User *user; | |
1035 | struct nd_entry *nd; | |
1036 | const char *m; | |
1037 | int flag; | |
1038 | ||
1039 | source_p = make_client(client_p); | |
1040 | user = make_user(source_p); | |
0e7cb7e6 | 1041 | rb_dlinkAddTail(source_p, &source_p->node, &global_client_list); |
212380e3 AC |
1042 | |
1043 | source_p->hopcount = atoi(parv[2]); | |
1044 | source_p->tsinfo = newts; | |
1045 | ||
1046 | strcpy(source_p->name, nick); | |
f427c8b0 VY |
1047 | rb_strlcpy(source_p->username, parv[5], sizeof(source_p->username)); |
1048 | rb_strlcpy(source_p->host, parv[6], sizeof(source_p->host)); | |
1049 | rb_strlcpy(source_p->orighost, source_p->host, sizeof(source_p->orighost)); | |
212380e3 AC |
1050 | |
1051 | if(parc == 12) | |
1052 | { | |
f427c8b0 VY |
1053 | rb_strlcpy(source_p->info, parv[11], sizeof(source_p->info)); |
1054 | rb_strlcpy(source_p->sockhost, parv[7], sizeof(source_p->sockhost)); | |
1055 | rb_strlcpy(source_p->id, parv[8], sizeof(source_p->id)); | |
212380e3 AC |
1056 | add_to_id_hash(source_p->id, source_p); |
1057 | if (strcmp(parv[9], "*")) | |
1058 | { | |
f427c8b0 | 1059 | rb_strlcpy(source_p->orighost, parv[9], sizeof(source_p->orighost)); |
212380e3 AC |
1060 | if (irccmp(source_p->host, source_p->orighost)) |
1061 | SetDynSpoof(source_p); | |
1062 | } | |
1063 | if (strcmp(parv[10], "*")) | |
f427c8b0 | 1064 | rb_strlcpy(source_p->user->suser, parv[10], sizeof(source_p->user->suser)); |
212380e3 AC |
1065 | } |
1066 | else if(parc == 10) | |
1067 | { | |
f427c8b0 VY |
1068 | rb_strlcpy(source_p->info, parv[9], sizeof(source_p->info)); |
1069 | rb_strlcpy(source_p->sockhost, parv[7], sizeof(source_p->sockhost)); | |
1070 | rb_strlcpy(source_p->id, parv[8], sizeof(source_p->id)); | |
212380e3 AC |
1071 | add_to_id_hash(source_p->id, source_p); |
1072 | } | |
1073 | else | |
1074 | { | |
463947ad | 1075 | s_assert(0); |
212380e3 AC |
1076 | } |
1077 | ||
1078 | /* remove any nd entries for this nick */ | |
a4bf26dd | 1079 | if((nd = rb_dictionary_retrieve(nd_dict, nick))) |
212380e3 AC |
1080 | free_nd_entry(nd); |
1081 | ||
1082 | add_to_client_hash(nick, source_p); | |
66b4a7ae | 1083 | add_to_hostname_hash(source_p->orighost, source_p); |
212380e3 AC |
1084 | monitor_signon(source_p); |
1085 | ||
1086 | m = &parv[4][1]; | |
1087 | while(*m) | |
1088 | { | |
1089 | flag = user_modes[(unsigned char) *m]; | |
1090 | ||
1091 | if(flag & UMODE_SERVICE) | |
1092 | { | |
1093 | int hit = 0; | |
5b96d9a6 | 1094 | rb_dlink_node *ptr; |
212380e3 | 1095 | |
5b96d9a6 | 1096 | RB_DLINK_FOREACH(ptr, service_list.head) |
212380e3 | 1097 | { |
c88cdb00 | 1098 | if(!irccmp((const char *) ptr->data, server->name)) |
212380e3 AC |
1099 | { |
1100 | hit++; | |
1101 | break; | |
1102 | } | |
1103 | } | |
1104 | ||
1105 | if(!hit) | |
1106 | { | |
1107 | m++; | |
1108 | continue; | |
1109 | } | |
1110 | } | |
1111 | ||
1112 | /* increment +i count if theyre invis */ | |
1113 | if(!(source_p->umodes & UMODE_INVISIBLE) && (flag & UMODE_INVISIBLE)) | |
1114 | Count.invisi++; | |
1115 | ||
1116 | /* increment opered count if theyre opered */ | |
1117 | if(!(source_p->umodes & UMODE_OPER) && (flag & UMODE_OPER)) | |
1118 | Count.oper++; | |
1119 | ||
1120 | source_p->umodes |= flag; | |
1121 | m++; | |
1122 | } | |
1123 | ||
1124 | if(IsOper(source_p) && !IsService(source_p)) | |
0e7cb7e6 | 1125 | rb_dlinkAddAlloc(source_p, &oper_list); |
212380e3 AC |
1126 | |
1127 | SetRemoteClient(source_p); | |
1128 | ||
1129 | if(++Count.total > Count.max_tot) | |
1130 | Count.max_tot = Count.total; | |
1131 | ||
64449595 | 1132 | source_p->servptr = server; |
212380e3 | 1133 | |
0e7cb7e6 | 1134 | rb_dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->users); |
212380e3 | 1135 | |
212380e3 AC |
1136 | call_hook(h_new_remote_user, source_p); |
1137 | ||
1138 | return (introduce_client(client_p, source_p, user, nick, parc == 12)); | |
1139 | } | |
1140 | ||
1141 | /* Check if we can do SAVE. target_p can be a client to save or a | |
1142 | * server introducing a client -- jilles */ | |
1143 | static int | |
1144 | can_save(struct Client *target_p) | |
1145 | { | |
1146 | struct Client *serv_p; | |
1147 | ||
1148 | if (MyClient(target_p)) | |
1149 | return 1; | |
1150 | if (!has_id(target_p)) | |
1151 | return 0; | |
1152 | serv_p = IsServer(target_p) ? target_p : target_p->servptr; | |
1153 | while (serv_p != NULL && serv_p != &me) | |
1154 | { | |
1155 | if (!(serv_p->serv->caps & CAP_SAVE)) | |
1156 | return 0; | |
1157 | serv_p = serv_p->servptr; | |
1158 | } | |
1159 | return serv_p == &me; | |
1160 | } | |
1161 | ||
1162 | static void | |
1163 | save_user(struct Client *client_p, struct Client *source_p, | |
1164 | struct Client *target_p) | |
1165 | { | |
1166 | if (!MyConnect(target_p) && (!has_id(target_p) || !IsCapable(target_p->from, CAP_SAVE))) | |
1167 | { | |
1168 | /* This shouldn't happen */ | |
1169 | /* Note we only need SAVE support in this direction */ | |
1170 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1171 | "Killed %s!%s@%s for nick collision detected by %s (%s does not support SAVE)", | |
1172 | target_p->name, target_p->username, target_p->host, source_p->name, target_p->from->name); | |
1173 | kill_client_serv_butone(NULL, target_p, "%s (Nick collision (no SAVE support))", me.name); | |
47adde3d | 1174 | ServerStats.is_kill++; |
212380e3 AC |
1175 | |
1176 | target_p->flags |= FLAGS_KILLED; | |
1177 | (void) exit_client(NULL, target_p, &me, "Nick collision (no SAVE support)"); | |
1178 | return; | |
1179 | } | |
1180 | sendto_server(client_p, NULL, CAP_SAVE|CAP_TS6, NOCAPS, ":%s SAVE %s %ld", | |
1181 | source_p->id, target_p->id, (long)target_p->tsinfo); | |
1182 | sendto_server(client_p, NULL, CAP_TS6, CAP_SAVE, ":%s NICK %s :%ld", | |
3f7e0642 | 1183 | target_p->id, target_p->id, (long)SAVE_NICKTS); |
212380e3 AC |
1184 | if (!IsMe(client_p)) |
1185 | sendto_realops_snomask(SNO_SKILL, L_ALL, | |
1186 | "Received SAVE message for %s from %s", | |
1187 | target_p->name, source_p->name); | |
1188 | if (MyClient(target_p)) | |
1189 | { | |
1190 | sendto_one_numeric(target_p, RPL_SAVENICK, | |
1191 | form_str(RPL_SAVENICK), target_p->id); | |
1192 | change_local_nick(target_p, target_p, target_p->id, 0); | |
3f7e0642 | 1193 | target_p->tsinfo = SAVE_NICKTS; |
212380e3 AC |
1194 | } |
1195 | else | |
3f7e0642 | 1196 | change_remote_nick(target_p, target_p, SAVE_NICKTS, target_p->id, 0); |
212380e3 | 1197 | } |
ad35b2cd JT |
1198 | |
1199 | static void bad_nickname(struct Client *client_p, const char *nick) | |
1200 | { | |
1201 | char squitreason[100]; | |
1202 | ||
1203 | sendto_wallops_flags(UMODE_WALLOP, &me, | |
1204 | "Squitting %s because of bad nickname %s (NICKLEN mismatch?)", | |
1205 | client_p->name, nick); | |
1206 | sendto_server(NULL, NULL, CAP_TS6, NOCAPS, | |
1207 | ":%s WALLOPS :Squitting %s because of bad nickname %s (NICKLEN mismatch?)", | |
1208 | me.id, client_p->name, nick); | |
4dd5d304 JT |
1209 | ilog(L_SERVER, "Link %s cancelled, bad nickname %s sent (NICKLEN mismatch?)", |
1210 | client_p->name, nick); | |
ad35b2cd | 1211 | |
5203cba5 | 1212 | snprintf(squitreason, sizeof squitreason, |
ad35b2cd JT |
1213 | "Bad nickname introduced [%s]", nick); |
1214 | exit_client(client_p, client_p, &me, squitreason); | |
1215 | } |