2 * IRC - Internet Relay Chat, ircd/m_nick.c
3 * Copyright (C) 1990 Jarkko Oikarinen and
4 * University of Oulu, Computing Center
6 * See file AUTHORS in IRC package for additional names of
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 1, or (at your option)
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.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
27 * m_functions execute protocol messages on this server:
29 * cptr is always NON-NULL, pointing to a *LOCAL* client
30 * structure (with an open socket connected!). This
31 * identifies the physical socket where the message
32 * originated (or which caused the m_function to be
33 * executed--some m_functions may call others...).
35 * sptr is the source of the message, defined by the
36 * prefix part of the message if present. If not
37 * or prefix not found, then sptr==cptr.
39 * (!IsServer(cptr)) => (cptr == sptr), because
40 * prefixes are taken *only* from servers...
43 * (sptr == cptr) => the message didn't
46 * (sptr != cptr && IsServer(sptr) means
47 * the prefix specified servername. (?)
49 * (sptr != cptr && !IsServer(sptr) means
50 * that message originated from a remote
55 * (!IsServer(sptr)) means that, sptr can safely
56 * taken as defining the target structure of the
57 * message in this server.
59 * *Always* true (if 'parse' and others are working correct):
61 * 1) sptr->from == cptr (note: cptr->from == cptr)
63 * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
64 * *cannot* be a local connection, unless it's
65 * actually cptr!). [MyConnect(x) should probably
66 * be defined as (x == x->from) --msa ]
68 * parc number of variable parameter strings (if zero,
69 * parv is allowed to be NULL)
71 * parv a NULL terminated list of parameter pointers,
73 * parv[0], sender (prefix string), if not present
74 * this points to an empty string.
75 * parv[1]...parv[parc-1]
76 * pointers to additional parameters
77 * parv[parc] == NULL, *always*
79 * note: it is guaranteed that parv[0]..parv[parc-1] are all
84 * No need to include handlers.h here the signatures must match
85 * and we don't need to force a rebuild of all the handlers everytime
86 * we add a new one to the list. --Bleep
94 #include "ircd_chattr.h"
95 #include "ircd_reply.h"
96 #include "ircd_string.h"
110 * m_nick - message handler for local clients
111 * parv[0] = sender prefix
114 int m_nick(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
116 struct Client* acptr;
117 char nick[NICKLEN + 2];
120 const char* client_name;
123 assert(cptr == sptr);
126 * parv[0] will be empty for clients connecting for the first time
128 client_name = (*(cli_name(sptr))) ? cli_name(sptr) : "*";
131 send_reply(sptr, ERR_NONICKNAMEGIVEN);
135 * Don't let them send make us send back a really long string of
139 if (strlen(arg) > NICKLEN)
142 if ((s = strchr(arg, '~')))
148 * If do_nick_name() returns a null name OR if the server sent a nick
149 * name and do_nick_name() changed it in some way (due to rules of nick
150 * creation) then reject it. If from a server and we reject it,
151 * and KILL it. -avalon 4/4/92
153 if (0 == do_nick_name(nick)) {
154 send_reply(sptr, ERR_ERRONEUSNICKNAME, arg);
159 * Check if this is a LOCAL user trying to use a reserved (Juped)
160 * nick, if so tell him that it's a nick in use...
162 if (isNickJuped(nick)) {
163 send_reply(sptr, ERR_NICKNAMEINUSE, nick);
164 return 0; /* NICK message ignored */
167 if (!(acptr = FindClient(nick))) {
169 * No collisions, all clear...
171 return set_nick_name(cptr, sptr, nick, parc, parv);
173 if (IsServer(acptr)) {
174 send_reply(sptr, ERR_NICKNAMEINUSE, nick);
175 return 0; /* NICK message ignored */
178 * If acptr == sptr, then we have a client doing a nick
179 * change between *equivalent* nicknames as far as server
180 * is concerned (user is changing the case of his/her
181 * nickname or somesuch)
185 * If acptr == sptr, then we have a client doing a nick
186 * change between *equivalent* nicknames as far as server
187 * is concerned (user is changing the case of his/her
188 * nickname or somesuch)
190 if (0 != strcmp(cli_name(acptr), nick)) {
192 * Allows change of case in his/her nick
194 return set_nick_name(cptr, sptr, nick, parc, parv);
197 * This is just ':old NICK old' type thing.
198 * Just forget the whole thing here. There is
199 * no point forwarding it to anywhere,
200 * especially since servers prior to this
201 * version would treat it as nick collision.
206 * Note: From this point forward it can be assumed that
207 * acptr != sptr (point to different client structures).
209 assert(acptr != sptr);
211 * If the older one is "non-person", the new entry is just
212 * allowed to overwrite it. Just silently drop non-person,
213 * and proceed with the nick. This should take care of the
214 * "dormant nick" way of generating collisions...
216 * XXX - hmmm can this happen after one is registered?
218 if (IsUnknown(acptr) && MyConnect(acptr)) {
219 ++ServerStats->is_ref;
220 IPcheck_connect_fail(cli_ip(acptr));
221 exit_client(cptr, acptr, &me, "Overridden by other sign on");
222 return set_nick_name(cptr, sptr, nick, parc, parv);
225 * NICK is coming from local client connection. Just
226 * send error reply and ignore the command.
228 send_reply(sptr, ERR_NICKNAMEINUSE, nick);
229 return 0; /* NICK message ignored */
234 * ms_nick - server message handler for nicks
235 * parv[0] = sender prefix
238 * If from server, source is client:
239 * parv[2] = timestamp
243 * parv[3] = timestamp
246 * parv[6] = umode (optional)
247 * parv[parc-4] = %<lastmod>:<mask> <- Only if matching GLINE
248 * parv[parc-3] = IP# <- Only Protocol >= 10
249 * parv[parc-2] = YXX, numeric nick <- Only Protocol >= 10
250 * parv[parc-1] = info
253 int ms_nick(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
255 struct Client* acptr;
256 char nick[NICKLEN + 2];
262 assert(IsServer(cptr));
264 if ((IsServer(sptr) && parc < 8) || parc < 3) {
265 sendto_opmask_butone(0, SNO_OLDSNO, "bad NICK param count for %s from %C",
267 return need_more_params(sptr, "NICK");
270 ircd_strncpy(nick, parv[1], NICKLEN);
271 nick[NICKLEN] = '\0';
273 if (IsServer(sptr)) {
274 lastnick = atoi(parv[3]);
275 if (lastnick > OLDEST_TS && !IsBurstOrBurstAck(sptr))
276 cli_serv(sptr)->lag = TStime() - lastnick;
279 lastnick = atoi(parv[2]);
280 if (lastnick > OLDEST_TS && !IsBurstOrBurstAck(sptr))
281 cli_serv(cli_user(sptr)->server)->lag = TStime() - lastnick;
284 * If do_nick_name() returns a null name OR if the server sent a nick
285 * name and do_nick_name() changed it in some way (due to rules of nick
286 * creation) then reject it. If from a server and we reject it,
287 * and KILL it. -avalon 4/4/92
289 if (0 == do_nick_name(nick) || 0 != strcmp(nick, parv[1])) {
290 send_reply(sptr, ERR_ERRONEUSNICKNAME, parv[1]);
292 ++ServerStats->is_kill;
293 sendto_opmask_butone(0, SNO_OLDSNO, "Bad Nick: %s From: %s %C", parv[1],
295 sendcmdto_one(&me, CMD_KILL, cptr, "%s :%s (%s <- %s[%s])",
296 IsServer(sptr) ? parv[parc - 2] : parv[0], cli_name(&me), parv[1],
297 nick, cli_name(cptr));
298 if (!IsServer(sptr)) {
302 sendcmdto_serv_butone(&me, CMD_KILL, 0, "%s :%s (%s <- %s!%s@%s)",
303 parv[0], cli_name(&me), cli_name(cptr), parv[0],
304 cli_user(sptr) ? cli_username(sptr) : "",
305 cli_user(sptr) ? cli_name(cli_user(sptr)->server) :
311 * Check against nick name collisions.
313 * Put this 'if' here so that the nesting goes nicely on the screen :)
314 * We check against server name list before determining if the nickname
315 * is present in the nicklist (due to the way the below for loop is
316 * constructed). -avalon
319 acptr = FindClient(nick);
322 * No collisions, all clear...
324 return set_nick_name(cptr, sptr, nick, parc, parv);
328 if (IsServer(acptr)) {
330 * We have a nickname trying to use the same name as
331 * a server. Send out a nick collision KILL to remove
332 * the nickname. As long as only a KILL is sent out,
333 * there is no danger of the server being disconnected.
334 * Ultimate way to jupiter a nick ? >;-). -avalon
336 sendto_opmask_butone(0, SNO_OLDSNO, "Nick collision on %C(%C <- %C)", sptr,
337 cli_from(acptr), cptr);
338 ++ServerStats->is_kill;
340 sendcmdto_one(&me, CMD_KILL, cptr, "%C :%s (%s <- %s)", sptr, cli_name(&me),
341 cli_name(cli_from(acptr)), cli_name(cptr));
343 cli_flags(sptr) |= FLAGS_KILLED;
345 * if sptr is a server it is exited here, nothing else to do
347 return exit_client(cptr, sptr, &me, "Nick/Server collision");
351 * If acptr == sptr, then we have a client doing a nick
352 * change between *equivalent* nicknames as far as server
353 * is concerned (user is changing the case of his/her
354 * nickname or somesuch)
357 if (strcmp(cli_name(acptr), nick) != 0)
359 * Allows change of case in his/her nick
361 return set_nick_name(cptr, sptr, nick, parc, parv);
364 * This is just ':old NICK old' type thing.
365 * Just forget the whole thing here. There is
366 * no point forwarding it to anywhere,
367 * especially since servers prior to this
368 * version would treat it as nick collision.
370 return 0; /* NICK Message ignored */
374 * Note: From this point forward it can be assumed that
375 * acptr != sptr (point to different client structures).
377 assert(acptr != sptr);
379 * If the older one is "non-person", the new entry is just
380 * allowed to overwrite it. Just silently drop non-person,
381 * and proceed with the nick. This should take care of the
382 * "dormant nick" way of generating collisions...
384 if (IsUnknown(acptr) && MyConnect(acptr)) {
385 ++ServerStats->is_ref;
386 IPcheck_connect_fail(cli_ip(acptr));
387 exit_client(cptr, acptr, &me, "Overridden by other sign on");
388 return set_nick_name(cptr, sptr, nick, parc, parv);
391 * Decide, we really have a nick collision and deal with it
394 * NICK was coming from a server connection.
395 * This means we have a race condition (two users signing on
396 * at the same time), or two net fragments reconnecting with the same nick.
397 * The latter can happen because two different users connected
398 * or because one and the same user switched server during a net break.
399 * If the TimeStamps are equal, we kill both (or only 'new'
400 * if it was a ":server NICK new ...").
401 * Otherwise we kill the youngest when user@host differ,
402 * or the oldest when they are the same.
403 * We treat user and ~user as different, because if it wasn't
404 * a faked ~user the AUTH wouldn't have added the '~'.
408 if (IsServer(sptr)) {
410 * A new NICK being introduced by a neighbouring
411 * server (e.g. message type ":server NICK new ..." received)
413 * compare IP address and username
415 differ = (cli_ip(acptr).s_addr != htonl(base64toint(parv[parc - 3]))) ||
416 (0 != ircd_strcmp(cli_user(acptr)->username, parv[4]));
417 sendto_opmask_butone(0, SNO_OLDSNO, "Nick collision on %C (%C %Tu <- "
418 "%C %Tu (%s user@host))", acptr, cli_from(acptr),
419 cli_lastnick(acptr), cptr, lastnick,
420 differ ? "Different" : "Same");
424 * A NICK change has collided (e.g. message type ":old NICK new").
426 * compare IP address and username
428 differ = (cli_ip(acptr).s_addr != cli_ip(sptr).s_addr) ||
429 (0 != ircd_strcmp(cli_user(acptr)->username, cli_user(sptr)->username));
430 sendto_opmask_butone(0, SNO_OLDSNO, "Nick change collision from %C to "
431 "%C (%C %Tu <- %C %Tu)", sptr, acptr, cli_from(acptr),
432 cli_lastnick(acptr), cptr, lastnick);
435 * Now remove (kill) the nick on our side if it is the youngest.
436 * If no timestamp was received, we ignore the incoming nick
437 * (and expect a KILL for our legit nick soon ):
438 * When the timestamps are equal we kill both nicks. --Run
439 * acptr->from != cptr should *always* be true (?).
441 * This exits the client sending the NICK message
443 if (cli_from(acptr) != cptr) {
444 if ((differ && lastnick >= cli_lastnick(acptr)) ||
445 (!differ && lastnick <= cli_lastnick(acptr))) {
446 if (!IsServer(sptr)) {
447 ++ServerStats->is_kill;
448 sendcmdto_serv_butone(&me, CMD_KILL, sptr, "%C :%s (%s <- %s (Nick "
449 "collision))", sptr, cli_name(&me), cli_name(cli_from(acptr)),
451 assert(!MyConnect(sptr));
453 cli_flags(sptr) |= FLAGS_KILLED;
454 exit_client(cptr, sptr, &me, "Nick collision (you're a ghost)");
456 * we have killed sptr off, zero out it's pointer so if it's used
457 * again we'll know about it --Bleep
461 if (lastnick != cli_lastnick(acptr))
462 return 0; /* Ignore the NICK */
464 send_reply(acptr, ERR_NICKCOLLISION, nick);
467 ++ServerStats->is_kill;
468 cli_flags(acptr) |= FLAGS_KILLED;
470 * This exits the client we had before getting the NICK message
473 sendcmdto_serv_butone(&me, CMD_KILL, acptr, "%C :%s (%s <- %s (older "
474 "nick overruled))", acptr, cli_name(&me),
475 cli_name(cli_from(acptr)), cli_name(cptr));
476 if (MyConnect(acptr))
477 sendcmdto_one(acptr, CMD_QUIT, cptr, ":Local kill by %s (Ghost)",
479 exit_client(cptr, acptr, &me, "Nick collision (older nick overruled)");
482 sendcmdto_serv_butone(&me, CMD_KILL, acptr, "%C :%s (%s <- %s (nick "
483 "collision from same user@host))", acptr, cli_name(&me),
484 cli_name(cli_from(acptr)), cli_name(cptr));
485 if (MyConnect(acptr))
486 sendcmdto_one(acptr, CMD_QUIT, cptr, ":Local kill by %s (Ghost: ",
487 "switched servers too fast)", cli_name(&me));
488 exit_client(cptr, acptr, &me, "Nick collision (You collided yourself)");
490 if (lastnick == cli_lastnick(acptr))
494 return set_nick_name(cptr, sptr, nick, parc, parv);
501 * parv[0] = sender prefix
504 * If from server, source is client:
505 * parv[2] = timestamp
509 * parv[3] = timestamp
512 * parv[6] = umode (optional)
513 * parv[parc-3] = IP# <- Only Protocol >= 10
514 * parv[parc-2] = YXX, numeric nick <- Only Protocol >= 10
515 * parv[parc-1] = info
518 int m_nick(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
520 struct Client* acptr;
521 char nick[NICKLEN + 2];
527 sendto_one(sptr, err_str(ERR_NONICKNAMEGIVEN), me.name, parv[0]); /* XXX DEAD */
530 else if ((IsServer(sptr) && parc < 8) || (IsServer(cptr) && parc < 3))
532 need_more_params(sptr, "NICK");
533 sendto_ops("bad NICK param count for %s from %s", parv[1], cptr->name); /* XXX DEAD */
536 if (MyConnect(sptr) && (s = strchr(parv[1], '~')))
538 ircd_strncpy(nick, parv[1], NICKLEN);
539 nick[NICKLEN] = '\0';
540 if (IsServer(cptr)) {
541 if (IsServer(sptr)) {
542 lastnick = atoi(parv[3]);
543 if (lastnick > OLDEST_TS)
544 sptr->serv->lag = TStime() - lastnick;
546 lastnick = atoi(parv[2]);
547 if (lastnick > OLDEST_TS)
548 sptr->user->server->serv->lag = TStime() - lastnick;
552 * If do_nick_name() returns a null name OR if the server sent a nick
553 * name and do_nick_name() changed it in some way (due to rules of nick
554 * creation) then reject it. If from a server and we reject it,
555 * and KILL it. -avalon 4/4/92
557 if (do_nick_name(nick) == 0 || (IsServer(cptr) && strcmp(nick, parv[1])))
559 sendto_one(sptr, err_str(ERR_ERRONEUSNICKNAME), me.name, parv[0], parv[1]); /* XXX DEAD */
563 ServerStats->is_kill++;
564 sendto_ops("Bad Nick: %s From: %s %s", /* XXX DEAD */
565 parv[1], parv[0], cptr->name);
566 sendto_one(cptr, "%s " TOK_KILL " %s :%s (%s <- %s[%s])", /* XXX DEAD */
567 NumServ(&me), IsServer(sptr) ? parv[parc - 2] : parv[0], me.name,
568 parv[1], nick, cptr->name);
569 if (!IsServer(sptr)) /* bad nick _change_ */
571 sendto_highprot_butone(&me, 10, "%s " TOK_KILL " %s :%s (%s <- %s!%s@%s)", /* XXX DEAD */
572 NumServ(&me), parv[0], me.name, cptr->name,
573 parv[0], sptr->user ? sptr->username : "",
574 sptr->user ? sptr->user->server->name : cptr->name);
581 * Check if this is a LOCAL user trying to use a reserved (Juped)
582 * nick, if so tell him that it's a nick in use...
584 if ((!IsServer(cptr)) && isNickJuped(nick))
586 sendto_one(sptr, err_str(ERR_NICKNAMEINUSE), me.name, /* XXX DEAD */
587 /* parv[0] is empty when connecting */
588 EmptyString(parv[0]) ? "*" : parv[0], nick);
589 return 0; /* NICK message ignored */
593 * Check against nick name collisions.
595 * Put this 'if' here so that the nesting goes nicely on the screen :)
596 * We check against server name list before determining if the nickname
597 * is present in the nicklist (due to the way the below for loop is
598 * constructed). -avalon
601 acptr = FindServer(nick);
603 if (acptr) { /* There is a nick collision with a server */
606 /* Local user trying to use a nick thats a server
607 * Return an error message and ignore the command
609 sendto_one(sptr, err_str(ERR_NICKNAMEINUSE), me.name, /* XXX DEAD */
610 EmptyString(parv[0]) ? "*" : parv[0], nick);
611 return 0; /* NICK message ignored */
615 * We have a nickname trying to use the same name as
616 * a server. Send out a nick collision KILL to remove
617 * the nickname. As long as only a KILL is sent out,
618 * there is no danger of the server being disconnected.
619 * Ultimate way to jupiter a nick ? >;-). -avalon
621 sendto_ops("Nick collision on %s(%s <- %s)", /* XXX DEAD */
622 sptr->name, acptr->from->name, cptr->name);
623 ServerStats->is_kill++;
624 sendto_one(cptr, "%s " TOK_KILL " %s%s :%s (%s <- %s)", /* XXX DEAD */
625 NumServ(&me), NumNick(sptr), me.name, acptr->from->name,
627 sptr->flags |= FLAGS_KILLED;
628 return exit_client(cptr, sptr, &me, "Nick/Server collision");
631 acptr = FindClient(nick);
633 /* No collisions? Set the nick name and we're done */
635 return set_nick_name(cptr, sptr, nick, parc, parv);
637 * If acptr == sptr, then we have a client doing a nick
638 * change between *equivalent* nicknames as far as server
639 * is concerned (user is changing the case of his/her
640 * nickname or somesuch)
644 if (strcmp(acptr->name, nick) != 0)
646 * Allows change of case in his/her nick
648 return set_nick_name(cptr, sptr, nick, parc, parv);
651 * This is just ':old NICK old' type thing.
652 * Just forget the whole thing here. There is
653 * no point forwarding it to anywhere,
654 * especially since servers prior to this
655 * version would treat it as nick collision.
657 return 0; /* NICK Message ignored */
661 * Note: From this point forward it can be assumed that
662 * acptr != sptr (point to different client structures).
665 * If the older one is "non-person", the new entry is just
666 * allowed to overwrite it. Just silently drop non-person,
667 * and proceed with the nick. This should take care of the
668 * "dormant nick" way of generating collisions...
670 if (IsUnknown(acptr) && MyConnect(acptr))
672 ++ServerStats->is_ref;
673 IPcheck_connect_fail(acptr->ip);
674 exit_client(cptr, acptr, &me, "Overridden by other sign on");
675 return set_nick_name(cptr, sptr, nick, parc, parv);
678 * Decide, we really have a nick collision and deal with it
683 * NICK is coming from local client connection. Just
684 * send error reply and ignore the command.
686 sendto_one(sptr, err_str(ERR_NICKNAMEINUSE), me.name, /* XXX DEAD */
687 /* parv[0] is empty when connecting */
688 EmptyString(parv[0]) ? "*" : parv[0], nick);
689 return 0; /* NICK message ignored */
692 * NICK was coming from a server connection.
693 * This means we have a race condition (two users signing on
694 * at the same time), or two net fragments reconnecting with the same nick.
695 * The latter can happen because two different users connected
696 * or because one and the same user switched server during a net break.
697 * If the TimeStamps are equal, we kill both (or only 'new'
698 * if it was a ":server NICK new ...").
699 * Otherwise we kill the youngest when user@host differ,
700 * or the oldest when they are the same.
701 * We treat user and ~user as different, because if it wasn't
702 * a faked ~user the AUTH wouldn't have added the '~'.
709 * A new NICK being introduced by a neighbouring
710 * server (e.g. message type ":server NICK new ..." received)
712 differ = (acptr->ip.s_addr != htonl(base64toint(parv[parc - 3]))) ||
713 (0 != ircd_strcmp(acptr->user->username, parv[4]));
714 sendto_ops("Nick collision on %s (%s " TIME_T_FMT " <- %s " TIME_T_FMT /* XXX DEAD */
715 " (%s user@host))", acptr->name, acptr->from->name, acptr->lastnick,
716 cptr->name, lastnick, differ ? "Different" : "Same");
721 * A NICK change has collided (e.g. message type ":old NICK new").
723 lastnick = atoi(parv[2]);
724 differ = (acptr->ip.s_addr != sptr->ip.s_addr) ||
725 (0 != ircd_strcmp(acptr->user->username, sptr->user->username));
726 sendto_ops("Nick change collision from %s to %s (%s " TIME_T_FMT " <- %s " /* XXX DEAD */
727 TIME_T_FMT ")", sptr->name, acptr->name, acptr->from->name,
728 acptr->lastnick, cptr->name, lastnick);
731 * Now remove (kill) the nick on our side if it is the youngest.
732 * If no timestamp was received, we ignore the incoming nick
733 * (and expect a KILL for our legit nick soon ):
734 * When the timestamps are equal we kill both nicks. --Run
735 * acptr->from != cptr should *always* be true (?).
737 if (acptr->from != cptr)
739 if ((differ && lastnick >= acptr->lastnick) ||
740 (!differ && lastnick <= acptr->lastnick))
744 ServerStats->is_kill++;
745 sendto_highprot_butone(cptr, 10, /* Kill old from outgoing servers */ /* XXX DEAD */
746 "%s " TOK_KILL " %s%s :%s (%s <- %s (Nick collision))",
747 NumServ(&me), NumNick(sptr), me.name, acptr->from->name,
749 if (MyConnect(sptr) && IsServer(cptr) && Protocol(cptr) > 9)
750 sendto_one(cptr, "%s " TOK_KILL " %s%s :%s (Ghost2)", /* XXX DEAD */
751 NumServ(&me), NumNick(sptr), me.name);
752 sptr->flags |= FLAGS_KILLED;
753 exit_client(cptr, sptr, &me, "Nick collision (you're a ghost)");
755 if (lastnick != acptr->lastnick)
756 return 0; /* Ignore the NICK */
758 sendto_one(acptr, err_str(ERR_NICKCOLLISION), me.name, acptr->name, nick); /* XXX DEAD */
760 ServerStats->is_kill++;
761 acptr->flags |= FLAGS_KILLED;
764 sendto_highprot_butone(cptr, 10, /* Kill our old from outgoing servers */ /* XXX DEAD */
765 "%s " TOK_KILL " %s%s :%s (%s <- %s (older nick overruled))",
766 NumServ(&me), NumNick(acptr), me.name, acptr->from->name,
768 if (MyConnect(acptr) && IsServer(cptr) && Protocol(cptr) > 9)
769 sendto_one(cptr, "%s%s " TOK_QUIT " :Local kill by %s (Ghost)", /* XXX DEAD */
770 NumNick(acptr), me.name);
771 exit_client(cptr, acptr, &me, "Nick collision (older nick overruled)");
775 sendto_highprot_butone(cptr, 10, /* Kill our old from outgoing servers */ /* XXX DEAD */
776 "%s " TOK_KILL " %s%s :%s (%s <- %s (nick collision from same user@host))",
777 NumServ(&me), NumNick(acptr), me.name, acptr->from->name,
779 if (MyConnect(acptr) && IsServer(cptr) && Protocol(cptr) > 9)
780 sendto_one(cptr, /* XXX DEAD */
781 "%s%s " TOK_QUIT " :Local kill by %s (Ghost: switched servers too fast)",
782 NumNick(acptr), me.name);
783 exit_client(cptr, acptr, &me, "Nick collision (You collided yourself)");
785 if (lastnick == acptr->lastnick)
788 return set_nick_name(cptr, sptr, nick, parc, parv);