/** Registered user ban */
char *extban_modeR_conv_param(char *para)
{
static char retbuf[NICKLEN + 4];
strlcpy(retbuf, para, sizeof(retbuf));
if (do_nick_name(retbuf+3) == 0)
return NULL;
return retbuf;
}
/*
** m_svsnick
** parv[0] = sender
** parv[1] = old nickname
** parv[2] = new nickname
** parv[3] = timestamp
*/
int m_svsnick(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
aClient *acptr;
aClient *ocptr; /* Other client */
if (!IsULine(sptr) || parc < 4 || (strlen(parv[2]) > NICKLEN))
return -1; /* This looks like an error anyway -Studded */
if (hunt_server_token(cptr, sptr, MSG_SVSNICK, TOK_SVSNICK, "%s %s :%s", 1, parc, parv) != HUNTED_ISME)
return 0; /* Forwarded, done */
if (do_nick_name(parv[2]) == 0)
return 0;
if (!(acptr = find_person(parv[1], NULL)))
return 0; /* User not found, bail out */
if ((ocptr = find_client(parv[2], NULL)) && ocptr != acptr) /* Collision */
{
exit_client(acptr, acptr, sptr,
"Nickname collision due to Services enforced "
"nickname change, your nick was overruled");
return 0;
}
if (acptr != ocptr)
acptr->umodes &= ~UMODE_REGNICK;
acptr->lastnick = TS2ts(parv[3]);
sendto_common_channels(acptr, ":%s NICK :%s", parv[1], parv[2]);
add_history(acptr, 1);
sendto_serv_butone_token(NULL, parv[1], MSG_NICK, TOK_NICK,
"%s :%ld", parv[2], TS2ts(parv[3]));
(void)del_from_client_hash_table(acptr->name, acptr);
hash_check_watch(acptr, RPL_LOGOFF);
sendto_snomask(SNO_NICKCHANGE,
"*** Notice -- %s (%s@%s) has been forced to change his/her nickname to %s",
acptr->name, acptr->user->username, acptr->user->realhost, parv[2]);
RunHook2(HOOKTYPE_LOCAL_NICKCHANGE, acptr, parv[2]);
strlcpy(acptr->name, parv[2], sizeof acptr->name);
add_to_client_hash_table(parv[2], acptr);
hash_check_watch(acptr, RPL_LOGON);
return 0;
}
/*
** m_nick
** parv[0] = sender prefix
** parv[1] = nickname
** if from new client -taz
** parv[2] = nick password
** if from server:
** parv[2] = hopcount
** parv[3] = timestamp
** parv[4] = username
** parv[5] = hostname
** parv[6] = servername
** if NICK version 1:
** parv[7] = servicestamp
** parv[8] = info
** if NICK version 2:
** parv[7] = servicestamp
** parv[8] = umodes
** parv[9] = virthost, * if none
** parv[10] = info
** if NICKIP:
** parv[10] = ip
** parv[11] = info
*/
DLLFUNC CMD_FUNC(m_nick)
{
aTKline *tklban;
int ishold;
aClient *acptr, *serv = NULL;
aClient *acptrs;
char nick[NICKLEN + 2], *s;
Membership *mp;
time_t lastnick = (time_t) 0;
int differ = 1, update_watch = 1;
unsigned char newusr = 0, removemoder = 1;
/*
* If the user didn't specify a nickname, complain
*/
if (parc < 2)
{
sendto_one(sptr, err_str(ERR_NONICKNAMEGIVEN),
me.name, parv[0]);
return 0;
}
strncpyzt(nick, parv[1], NICKLEN + 1);
if (MyConnect(sptr) && sptr->user && !IsAnOper(sptr))
{
if ((sptr->user->flood.nick_c >= NICK_COUNT) &&
(TStime() - sptr->user->flood.nick_t < NICK_PERIOD))
{
/* Throttle... */
sendto_one(sptr, err_str(ERR_NCHANGETOOFAST), me.name, sptr->name, nick,
(int)(NICK_PERIOD - (TStime() - sptr->user->flood.nick_t)));
return 0;
}
}
/* For a local clients, do proper nickname checking via do_nick_name()
* and reject the nick if it returns false.
* For remote clients, do a quick check by using do_remote_nick_name(),
* if this returned false then reject and kill it. -- Syzop
*/
if ((IsServer(cptr) && !do_remote_nick_name(nick)) ||
(!IsServer(cptr) && !do_nick_name(nick)))
{
sendto_one(sptr, err_str(ERR_ERRONEUSNICKNAME),
me.name, parv[0], parv[1], "Illegal characters");
if (IsServer(cptr))
{
ircstp->is_kill++;
sendto_failops("Bad Nick: %s From: %s %s",
parv[1], parv[0], get_client_name(cptr, FALSE));
sendto_one(cptr, ":%s KILL %s :%s (%s <- %s[%s])",
me.name, parv[1], me.name, parv[1],
nick, cptr->name);
if (sptr != cptr)
{ /* bad nick change */
sendto_serv_butone(cptr,
":%s KILL %s :%s (%s <- %s!%s@%s)",
me.name, parv[0], me.name,
get_client_name(cptr, FALSE),
parv[0],
sptr->user ? sptr->username : "",
sptr->user ? sptr->user->server :
cptr->name);
sptr->flags |= FLAGS_KILLED;
return exit_client(cptr, sptr, &me, "BadNick");
}
}
return 0;
}
/* Kill quarantined opers early... */
if (IsServer(cptr) && (sptr->from->flags & FLAGS_QUARANTINE) &&
(parc >= 11) && strchr(parv[8], 'o'))
{
ircstp->is_kill++;
/* Send kill to uplink only, hasn't been broadcasted to the rest, anyway */
sendto_one(cptr, ":%s KILL %s :%s (Quarantined: no global oper privileges allowed)",
me.name, parv[1], me.name);
sendto_realops("QUARANTINE: Oper %s on server %s killed, due to quarantine",
parv[1], sptr->name);
/* (nothing to exit_client or to free, since user was never added) */
return 0;
}
/*
** Protocol 4 doesn't send the server as prefix, so it is possible
** the server doesn't exist (a lagged net.burst), in which case
** we simply need to ignore the NICK. Also when we got that server
** name (again) but from another direction. --Run
*/
/*
** We should really only deal with this for msgs from servers.
** -- Aeto
*/
if (IsServer(cptr) &&
(parc > 7
&& (!(serv = (aClient *)find_server_b64_or_real(parv[6]))
|| serv->from != cptr->from)))
{
sendto_realops("Cannot find server %s (%s)", parv[6],
backupbuf);
return 0;
}
/*
** Check against nick name collisions.
**
** Put this 'if' here so that the nesting goes nicely on the screen :)
** We check against server name list before determining if the nickname
** is present in the nicklist (due to the way the below for loop is
** constructed). -avalon
*/
/* I managed to f**k this up i guess --stskeeps */
if ((acptr = find_server(nick, NULL)))
{
if (MyConnect(sptr))
{
#ifdef GUEST
if (IsUnknown(sptr))
{
RunHook4(HOOKTYPE_GUEST, cptr, sptr, parc, parv);
return 0;
}
#endif
sendto_one(sptr, err_str(ERR_NICKNAMEINUSE), me.name,
BadPtr(parv[0]) ? "*" : parv[0], nick);
return 0; /* NICK message ignored */
}
}
/*
** Check for a Q-lined nickname. If we find it, and it's our
** client, just reject it. -Lefler
** Allow opers to use Q-lined nicknames. -Russell
*/
if (!stricmp("ircd", nick))
{
sendto_one(sptr, err_str(ERR_ERRONEUSNICKNAME), me.name,
BadPtr(parv[0]) ? "*" : parv[0], nick,
"Reserved for internal IRCd purposes");
return 0;
}
if (!stricmp("irc", nick))
{
sendto_one(sptr, err_str(ERR_ERRONEUSNICKNAME), me.name,
BadPtr(parv[0]) ? "*" : parv[0], nick,
"Reserved for internal IRCd purposes");
return 0;
}
if (MyClient(sptr)) /* local client changin nick afterwards.. */
{
int xx;
spamfilter_build_user_string(spamfilter_user, nick, sptr);
xx = dospamfilter(sptr, spamfilter_user, SPAMF_USER, NULL, 0, NULL);
if (xx < 0)
return xx;
}
if (!IsULine(sptr) && (tklban = find_qline(sptr, nick, &ishold)))
{
if (IsServer(sptr) && !ishold) /* server introducing new client */
{
acptrs =
(aClient *)find_server_b64_or_real(sptr->user ==
NULL ? (char *)parv[6] : (char *)sptr->user->
server);
/* (NEW: no unregistered q:line msgs anymore during linking) */
if (!acptrs || (acptrs->serv && acptrs->serv->flags.synced))
sendto_snomask(SNO_QLINE, "Q:lined nick %s from %s on %s", nick,
(*sptr->name != 0
&& !IsServer(sptr) ? sptr->name : "<unregistered>"),
acptrs ? acptrs->name : "unknown server");
}
if (IsServer(cptr) && IsPerson(sptr) && !ishold) /* remote user changing nick */
{
sendto_snomask(SNO_QLINE, "Q:lined nick %s from %s on %s", nick,
sptr->name, sptr->srvptr ? sptr->srvptr->name : "<unknown>");
}
if (!IsServer(cptr)) /* local */
{
if (ishold)
{
sendto_one(sptr, err_str(ERR_ERRONEUSNICKNAME),
me.name, BadPtr(parv[0]) ? "*" : parv[0],
nick, tklban->reason);
return 0;
}
if (!IsOper(cptr))
{
sptr->since += 4; /* lag them up */
sendto_one(sptr, err_str(ERR_ERRONEUSNICKNAME),
me.name, BadPtr(parv[0]) ? "*" : parv[0],
nick, tklban->reason);
sendto_snomask(SNO_QLINE, "Forbidding Q-lined nick %s from %s.",
nick, get_client_name(cptr, FALSE));
return 0; /* NICK message ignored */
}
}
}
/*
** acptr already has result from previous find_server()
*/
if (acptr)
{
/*
** We have a nickname trying to use the same name as
** a server. Send out a nick collision KILL to remove
** the nickname. As long as only a KILL is sent out,
** there is no danger of the server being disconnected.
** Ultimate way to jupiter a nick ? >;-). -avalon
*/
sendto_failops("Nick collision on %s(%s <- %s)",
sptr->name, acptr->from->name,
get_client_name(cptr, FALSE));
ircstp->is_kill++;
sendto_one(cptr, ":%s KILL %s :%s (%s <- %s)",
me.name, sptr->name, me.name, acptr->from->name,
/* NOTE: Cannot use get_client_name
** twice here, it returns static
** string pointer--the other info
** would be lost
*/
get_client_name(cptr, FALSE));
sptr->flags |= FLAGS_KILLED;
return exit_client(cptr, sptr, &me, "Nick/Server collision");
}
if (MyClient(cptr) && !IsOper(cptr))
cptr->since += 3; /* Nick-flood prot. -Donwulff */
if (!(acptr = find_client(nick, NULL)))
goto nickkilldone; /* No collisions, all clear... */
/*
** If the older one is "non-person", the new entry is just
** allowed to overwrite it. Just silently drop non-person,
** and proceed with the nick. This should take care of the
** "dormant nick" way of generating collisions...
*/
/* Moved before Lost User Field to fix some bugs... -- Barubary */
if (IsUnknown(acptr) && MyConnect(acptr))
{
/* This may help - copying code below */
if (acptr == cptr)
return 0;
acptr->flags |= FLAGS_KILLED;
exit_client(NULL, acptr, &me, "Overridden");
goto nickkilldone;
}
/* A sanity check in the user field... */
if (acptr->user == NULL)
{
/* This is a Bad Thing */
sendto_failops("Lost user field for %s in change from %s",
acptr->name, get_client_name(cptr, FALSE));
ircstp->is_kill++;
sendto_one(acptr, ":%s KILL %s :%s (Lost user field!)",
me.name, acptr->name, me.name);
acptr->flags |= FLAGS_KILLED;
/* Here's the previous versions' desynch. If the old one is
messed up, trash the old one and accept the new one.
Remember - at this point there is a new nick coming in!
Handle appropriately. -- Barubary */
exit_client(NULL, acptr, &me, "Lost user field");
goto nickkilldone;
}
/*
** If acptr == sptr, then we have a client doing a nick
** change between *equivalent* nicknames as far as server
** is concerned (user is changing the case of his/her
** nickname or somesuch)
*/
if (acptr == sptr) {
if (strcmp(acptr->name, nick) != 0)
{
/* Allows change of case in his/her nick */
removemoder = 0; /* don't set the user -r */
goto nickkilldone; /* -- go and process change */
} else
/*
** This is just ':old NICK old' type thing.
** Just forget the whole thing here. There is
** no point forwarding it to anywhere,
** especially since servers prior to this
** version would treat it as nick collision.
*/
return 0; /* NICK Message ignored */
}
/*
** Note: From this point forward it can be assumed that
** acptr != sptr (point to different client structures).
*/
/*
** Decide, we really have a nick collision and deal with it
*/
if (!IsServer(cptr))
{
/*
** NICK is coming from local client connection. Just
** send error reply and ignore the command.
*/
#ifdef GUEST
if (IsUnknown(sptr))
{
RunHook4(HOOKTYPE_GUEST, cptr, sptr, parc, parv);
return 0;
}
#endif
sendto_one(sptr, err_str(ERR_NICKNAMEINUSE),
/* parv[0] is empty when connecting */
me.name, BadPtr(parv[0]) ? "*" : parv[0], nick);
return 0; /* NICK message ignored */
}
/*
** NICK was coming from a server connection.
** This means we have a race condition (two users signing on
** at the same time), or two net fragments reconnecting with
** the same nick.
** The latter can happen because two different users connected
** or because one and the same user switched server during a
** net break.
** If we have the old protocol (no TimeStamp and no user@host)
** or if the TimeStamps are equal, we kill both (or only 'new'
** if it was a "NICK new"). Otherwise we kill the youngest
** when user@host differ, or the oldest when they are the same.
** --Run
**
*/
if (IsServer(sptr))
{
/*
** A new NICK being introduced by a neighbouring
** server (e.g. message type "NICK new" received)
*/
if (parc > 3)
{
lastnick = TS2ts(parv[3]);
if (parc > 5)
differ = (mycmp(acptr->user->username, parv[4])
|| mycmp(acptr->user->realhost, parv[5]));
}
sendto_failops("Nick collision on %s (%s %ld <- %s %ld)",
acptr->name, acptr->from->name, acptr->lastnick,
cptr->name, lastnick);
/*
** I'm putting the KILL handling here just to make it easier
** to read, it's hard to follow it the way it used to be.
** Basically, this is what it will do. It will kill both
** users if no timestamp is given, or they are equal. It will
** kill the user on our side if the other server is "correct"
** (user@host differ and their user is older, or user@host are
** the same and their user is younger), otherwise just kill the
** user an reintroduce our correct user.
** The old code just sat there and "hoped" the other server
** would kill their user. Not anymore.
** -- binary
*/
if (!(parc > 3) || (acptr->lastnick == lastnick))
{
ircstp->is_kill++;
sendto_serv_butone(NULL,
":%s KILL %s :%s (Nick Collision)",
me.name, acptr->name, me.name);
acptr->flags |= FLAGS_KILLED;
(void)exit_client(NULL, acptr, &me,
"Nick collision with no timestamp/equal timestamps");
return 0; /* We killed both users, now stop the process. */
}
if ((differ && (acptr->lastnick > lastnick)) ||
(!differ && (acptr->lastnick < lastnick)) || acptr->from == cptr) /* we missed a QUIT somewhere ? */
{
ircstp->is_kill++;
sendto_serv_butone(cptr,
":%s KILL %s :%s (Nick Collision)",
me.name, acptr->name, me.name);
acptr->flags |= FLAGS_KILLED;
(void)exit_client(NULL, acptr, &me, "Nick collision");
goto nickkilldone; /* OK, we got rid of the "wrong" user,
** now we're going to add the user the
** other server introduced.
*/
}
if ((differ && (acptr->lastnick < lastnick)) ||
(!differ && (acptr->lastnick > lastnick)))
{
/*
* Introduce our "correct" user to the other server
*/
sendto_one(cptr, ":%s KILL %s :%s (Nick Collision)",
me.name, parv[1], me.name);
send_umode(NULL, acptr, 0, SEND_UMODES, buf);
sendto_one_nickcmd(cptr, acptr, buf);
if (acptr->user->away)
sendto_one(cptr, ":%s AWAY :%s", acptr->name,
acptr->user->away);
send_user_joins(cptr, acptr);
return 0; /* Ignore the NICK */
}
return 0;
}
else
{
/*
** A NICK change has collided (e.g. message type ":old NICK new").
*/
if (parc > 2)
lastnick = TS2ts(parv[2]);
differ = (mycmp(acptr->user->username, sptr->user->username) ||
mycmp(acptr->user->realhost, sptr->user->realhost));
sendto_failops
("Nick change collision from %s to %s (%s %ld <- %s %ld)",
sptr->name, acptr->name, acptr->from->name, acptr->lastnick,
sptr->from->name, lastnick);
if (!(parc > 2) || lastnick == acptr->lastnick)
{
ircstp->is_kill += 2;
sendto_serv_butone(NULL, /* First kill the new nick. */
":%s KILL %s :%s (Self Collision)",
me.name, acptr->name, me.name);
sendto_serv_butone(cptr, /* Tell my servers to kill the old */
":%s KILL %s :%s (Self Collision)",
me.name, sptr->name, me.name);
sptr->flags |= FLAGS_KILLED;
acptr->flags |= FLAGS_KILLED;
(void)exit_client(NULL, sptr, &me, "Self Collision");
(void)exit_client(NULL, acptr, &me, "Self Collision");
return 0; /* Now that I killed them both, ignore the NICK */
}
if ((differ && (acptr->lastnick > lastnick)) ||
(!differ && (acptr->lastnick < lastnick)))
{
/* sptr (their user) won, let's kill acptr (our user) */
ircstp->is_kill++;
sendto_serv_butone(cptr,
":%s KILL %s :%s (Nick collision: %s <- %s)",
me.name, acptr->name, me.name,
acptr->from->name, sptr->from->name);
acptr->flags |= FLAGS_KILLED;
(void)exit_client(NULL, acptr, &me, "Nick collision");
goto nickkilldone; /* their user won, introduce new nick */
}
if ((differ && (acptr->lastnick < lastnick)) ||
(!differ && (acptr->lastnick > lastnick)))
{
/* acptr (our user) won, let's kill sptr (their user),
** and reintroduce our "correct" user
*/
ircstp->is_kill++;
/* Kill the user trying to change their nick. */
sendto_serv_butone(cptr,
":%s KILL %s :%s (Nick collision: %s <- %s)",
me.name, sptr->name, me.name,
sptr->from->name, acptr->from->name);
sptr->flags |= FLAGS_KILLED;
(void)exit_client(NULL, sptr, &me, "Nick collision");
/*
* Introduce our "correct" user to the other server
*/
/* Kill their user. */
sendto_one(cptr, ":%s KILL %s :%s (Nick Collision)",
me.name, parv[1], me.name);
send_umode(NULL, acptr, 0, SEND_UMODES, buf);
sendto_one_nickcmd(cptr, acptr, buf);
if (acptr->user->away)
sendto_one(cptr, ":%s AWAY :%s", acptr->name,
acptr->user->away);
send_user_joins(cptr, acptr);
return 0; /* their user lost, ignore the NICK */
}
}
return 0; /* just in case */
nickkilldone:
if (IsServer(sptr))
{
/* A server introducing a new client, change source */
sptr = make_client(cptr, serv);
add_client_to_list(sptr);
if (parc > 2)
sptr->hopcount = TS2ts(parv[2]);
if (parc > 3)
sptr->lastnick = TS2ts(parv[3]);
else /* Little bit better, as long as not all upgraded */
sptr->lastnick = TStime();
if (sptr->lastnick < 0)
{
sendto_realops
("Negative timestamp recieved from %s, resetting to TStime (%s)",
cptr->name, backupbuf);
sptr->lastnick = TStime();
}
newusr = 1;
}
else if (sptr->name[0] && IsPerson(sptr))
{
/*
** If the client belongs to me, then check to see
** if client is currently on any channels where it
** is currently banned. If so, do not allow the nick
** change to occur.
** Also set 'lastnick' to current time, if changed.
*/
if (MyClient(sptr))
{
for (mp = sptr->user->channel; mp; mp = mp->next)
{
if (!is_skochanop(sptr, mp->chptr) && is_banned(sptr, mp->chptr, BANCHK_NICK))
{
sendto_one(sptr,
err_str(ERR_BANNICKCHANGE),
me.name, parv[0],
mp->chptr->chname);
return 0;
}
if (CHECK_TARGET_NICK_BANS && !is_skochanop(sptr, mp->chptr) && is_banned_with_nick(sptr, mp->chptr, BANCHK_NICK, nick))
{
sendto_one(sptr,
":%s 437 %s %s :Cannot change to a nickname banned on channel",
me.name, parv[0],
mp->chptr->chname);
return 0;
}
if (!IsOper(sptr) && !IsULine(sptr)
&& mp->chptr->mode.mode & MODE_NONICKCHANGE
&& !is_chanownprotop(sptr, mp->chptr))
{
sendto_one(sptr,
err_str(ERR_NONICKCHANGE),
me.name, parv[0],
mp->chptr->chname);
return 0;
}
}
if (TStime() - sptr->user->flood.nick_t >= NICK_PERIOD)
{
sptr->user->flood.nick_t = TStime();
sptr->user->flood.nick_c = 1;
} else
sptr->user->flood.nick_c++;
sendto_snomask(SNO_NICKCHANGE, "*** Notice -- %s (%s@%s) has changed his/her nickname to %s",
sptr->name, sptr->user->username, sptr->user->realhost, nick);
RunHook2(HOOKTYPE_LOCAL_NICKCHANGE, sptr, nick);
} else {
if (!IsULine(sptr))
sendto_snomask(SNO_FNICKCHANGE, "*** Notice -- %s (%s@%s) has changed his/her nickname to %s",
sptr->name, sptr->user->username, sptr->user->realhost, nick);
RunHook3(HOOKTYPE_REMOTE_NICKCHANGE, cptr, sptr, nick);
}
/*
* Client just changing his/her nick. If he/she is
* on a channel, send note of change to all clients
* on that channel. Propagate notice to other servers.
*/
if (mycmp(parv[0], nick) ||
/* Next line can be removed when all upgraded --Run */
(!MyClient(sptr) && parc > 2
&& TS2ts(parv[2]) < sptr->lastnick))
sptr->lastnick = (MyClient(sptr)
|| parc < 3) ? TStime() : TS2ts(parv[2]);
if (sptr->lastnick < 0)
{
sendto_realops("Negative timestamp (%s)", backupbuf);
sptr->lastnick = TStime();
}
add_history(sptr, 1);
sendto_common_channels(sptr, ":%s NICK :%s", parv[0], nick);
sendto_serv_butone_token(cptr, parv[0], MSG_NICK, TOK_NICK,
"%s %ld", nick, sptr->lastnick);
if (removemoder)
sptr->umodes &= ~UMODE_REGNICK;
}
else if (!sptr->name[0])
{
#ifdef NOSPOOF
/*
* Client setting NICK the first time.
*
* Generate a random string for them to pong with.
*/
sptr->nospoof = getrandom32();
if (PINGPONG_WARNING)
sendto_one(sptr, ":%s NOTICE %s :*** If you are having problems"
" connecting due to ping timeouts, please"
" type /quote pong %X or /raw pong %X now.",
me.name, nick, sptr->nospoof, sptr->nospoof);
sendto_one(sptr, "PING :%X", sptr->nospoof);
#endif /* NOSPOOF */
#ifdef CONTACT_EMAIL
sendto_one(sptr,
":%s NOTICE %s :*** If you need assistance with a"
" connection problem, please email " CONTACT_EMAIL
" with the name and version of the client you are"
" using, and the server you tried to connect to: %s",
me.name, nick, me.name);
#endif /* CONTACT_EMAIL */
#ifdef CONTACT_URL
sendto_one(sptr,
":%s NOTICE %s :*** If you need assistance with"
" connecting to this server, %s, please refer to: "
CONTACT_URL, me.name, nick, me.name);
#endif /* CONTACT_URL */
/* Copy password to the passwd field if it's given after NICK
* - originally by taz, modified by Wizzu
*/
if ((parc > 2) && (strlen(parv[2]) <= PASSWDLEN)
&& !(sptr->listener->umodes & LISTENER_JAVACLIENT))
{
if (sptr->passwd)
MyFree(sptr->passwd);
sptr->passwd = MyMalloc(strlen(parv[2]) + 1);
(void)strcpy(sptr->passwd, parv[2]);
}
/* This had to be copied here to avoid problems.. */
(void)strcpy(sptr->name, nick);
if (sptr->user && IsNotSpoof(sptr))
{
/*
** USER already received, now we have NICK.
** *NOTE* For servers "NICK" *must* precede the
** user message (giving USER before NICK is possible
** only for local client connection!). register_user
** may reject the client and call exit_client for it
** --must test this and exit m_nick too!!!
*/
#ifndef NOSPOOF
if (USE_BAN_VERSION && MyConnect(sptr))
sendto_one(sptr, ":IRC!IRC@%s PRIVMSG %s :\1VERSION\1",
me.name, nick);
#endif
sptr->lastnick = TStime(); /* Always local client */
if (register_user(cptr, sptr, nick,
sptr->user->username, NULL, NULL, NULL) == FLUSH_BUFFER)
return FLUSH_BUFFER;
strcpy(nick, sptr->name); /* don't ask, but I need this. do not remove! -- Syzop */
update_watch = 0;
newusr = 1;
}
}
/*
* Finally set new nick name.
*/
if (update_watch && sptr->name[0])
{
(void)del_from_client_hash_table(sptr->name, sptr);
if (IsPerson(sptr))
hash_check_watch(sptr, RPL_LOGOFF);
}
(void)strcpy(sptr->name, nick);
(void)add_to_client_hash_table(nick, sptr);
if (IsServer(cptr) && parc > 7)
{
parv[3] = nick;
do_cmd(cptr, sptr, "USER", parc - 3, &parv[3]);
if (GotNetInfo(cptr) && !IsULine(sptr))
sendto_fconnectnotice(sptr->name, sptr->user, sptr, 0, NULL);
}
else if (IsPerson(sptr) && update_watch)
hash_check_watch(sptr, RPL_LOGON);
#ifdef NEWCHFLOODPROT
if (sptr->user && !newusr && !IsULine(sptr))
{
for (mp = sptr->user->channel; mp; mp = mp->next)
{
aChannel *chptr = mp->chptr;
if (chptr && !(mp->flags & (CHFL_CHANOP|CHFL_VOICE|CHFL_CHANOWNER|CHFL_HALFOP|CHFL_CHANPROT)) &&
chptr->mode.floodprot && do_chanflood(chptr->mode.floodprot, FLD_NICK) && MyClient(sptr))
{
do_chanflood_action(chptr, FLD_NICK, "nick");
}
}
}
#endif
if (newusr && !MyClient(sptr) && IsPerson(sptr))
{
RunHook(HOOKTYPE_REMOTE_CONNECT, sptr);
}
return 0;
}
/*
* ms_nick - server message handler for nicks
* parv[0] = sender prefix
* parv[1] = nickname
*
* If from server, source is client:
* parv[2] = timestamp
*
* Source is server:
* parv[2] = hopcount
* parv[3] = timestamp
* parv[4] = username
* parv[5] = hostname
* parv[6] = umode (optional)
* parv[parc-3] = IP# <- Only Protocol >= 10
* parv[parc-2] = YXX, numeric nick <- Only Protocol >= 10
* parv[parc-1] = info
* parv[0] = server
*/
int ms_nick(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
{
struct Client *acptr;
char nick[NICKLEN + 2];
time_t lastnick = 0;
int differ = 1;
const char *type;
assert(0 != cptr);
assert(0 != sptr);
assert(IsServer(cptr));
if ((IsServer(sptr) && parc < 8) || parc < 3)
{
sendto_opmask_butone(0, SNO_OLDSNO, "bad NICK param count for %s from %C",
parv[1], cptr);
return need_more_params(sptr, "NICK");
}
ircd_strncpy(nick, parv[1], NICKLEN);
nick[NICKLEN] = '\0';
if (IsServer(sptr))
{
lastnick = atoi(parv[3]);
if (lastnick > OLDEST_TS && !IsBurstOrBurstAck(sptr))
cli_serv(sptr)->lag = TStime() - lastnick;
}
else
{
lastnick = atoi(parv[2]);
if (lastnick > OLDEST_TS && !IsBurstOrBurstAck(sptr))
cli_serv(cli_user(sptr)->server)->lag = TStime() - lastnick;
}
/*
* If do_nick_name() returns a null name OR if the server sent a nick
* name and do_nick_name() changed it in some way (due to rules of nick
* creation) then reject it. If from a server and we reject it,
* and KILL it. -avalon 4/4/92
*/
if (!do_nick_name(nick) || strcmp(nick, parv[1]))
{
send_reply(sptr, ERR_ERRONEUSNICKNAME, parv[1]);
++ServerStats->is_kill;
sendto_opmask_butone(0, SNO_OLDSNO, "Bad Nick: %s From: %s %C", parv[1],
parv[0], cptr);
sendcmdto_one(&me, CMD_KILL, cptr, "%s :%s (%s <- %s[%s])",
IsServer(sptr) ? parv[parc - 2] : parv[0], cli_name(&me), parv[1],
nick, cli_name(cptr));
if (!IsServer(sptr))
{
/*
* bad nick _change_
*/
sendcmdto_serv_butone(&me, CMD_KILL, 0, "%s :%s (%s <- %s!%s@%s)",
parv[0], cli_name(&me), cli_name(cptr), parv[0],
cli_user(sptr) ? cli_username(sptr) : "",
cli_user(sptr) ? cli_name(cli_user(sptr)->server) :
cli_name(cptr));
}
return 0;
}
/* Check against nick name collisions. */
if ((acptr = FindClient(nick)) == NULL)
/* No collisions, all clear... */
return set_nick_name(cptr, sptr, nick, parc, parv);
/*
* If acptr == sptr, then we have a client doing a nick
* change between *equivalent* nicknames as far as server
* is concerned (user is changing the case of his/her
* nickname or somesuch)
*/
if (acptr == sptr)
{
if (strcmp(cli_name(acptr), nick) != 0)
/* Allows change of case in his/her nick */
return set_nick_name(cptr, sptr, nick, parc, parv);
else
/* Setting their nick to what it already is? Ignore it. */
return 0;
}
/* now we know we have a real collision. */
/*
* Note: From this point forward it can be assumed that
* acptr != sptr (point to different client structures).
*/
assert(acptr != sptr);
/*
* If the older one is "non-person", the new entry is just
* allowed to overwrite it. Just silently drop non-person,
* and proceed with the nick. This should take care of the
* "dormant nick" way of generating collisions...
*/
if (IsUnknown(acptr) && MyConnect(acptr))
{
ServerStats->is_ref++;
IPcheck_connect_fail(acptr);
exit_client(cptr, acptr, &me, "Overridden by other sign on");
return set_nick_name(cptr, sptr, nick, parc, parv);
}
/*
* Decide, we really have a nick collision and deal with it
*/
/*
* NICK was coming from a server connection.
* This means we have a race condition (two users signing on
* at the same time), or two net fragments reconnecting with the same nick.
* The latter can happen because two different users connected
* or because one and the same user switched server during a net break.
* If the TimeStamps are equal, we kill both (or only 'new'
* if it was a ":server NICK new ...").
* Otherwise we kill the youngest when user@host differ,
* or the oldest when they are the same.
* We treat user and ~user as different, because if it wasn't
* a faked ~user the AUTH wouldn't have added the '~'.
* --Run
*
*/
if (IsServer(sptr))
{
struct irc_in_addr ip;
/*
* A new NICK being introduced by a neighbouring
* server (e.g. message type ":server NICK new ..." received)
*
* compare IP address and username
*/
base64toip(parv[parc - 3], &ip);
differ = (0 != memcmp(&cli_ip(acptr), &ip, sizeof(cli_ip(acptr)))) ||
(0 != ircd_strcmp(cli_user(acptr)->username, parv[4]));
sendto_opmask_butone(0, SNO_OLDSNO, "Nick collision on %C (%C %Tu <- "
"%C %Tu (%s user@host))", acptr, cli_from(acptr),
cli_lastnick(acptr), cptr, lastnick,
differ ? "Different" : "Same");
}
else
{
/*
* A NICK change has collided (e.g. message type ":old NICK new").
*
* compare IP address and username
*/
differ = (0 != memcmp(&cli_ip(acptr), &cli_ip(sptr), sizeof(cli_ip(acptr)))) ||
(0 != ircd_strcmp(cli_user(acptr)->username, cli_user(sptr)->username));
sendto_opmask_butone(0, SNO_OLDSNO, "Nick change collision from %C to "
"%C (%C %Tu <- %C %Tu)", sptr, acptr, cli_from(acptr),
cli_lastnick(acptr), cptr, lastnick);
}
type = differ ? "overruled by older nick" : "nick collision from same user@host";
/*
* Now remove (kill) the nick on our side if it is the youngest.
* If no timestamp was received, we ignore the incoming nick
* (and expect a KILL for our legit nick soon ):
* When the timestamps are equal we kill both nicks. --Run
* acptr->from != cptr should *always* be true (?).
*
* This exits the client sending the NICK message
*/
if ((differ && lastnick >= cli_lastnick(acptr)) ||
(!differ && lastnick <= cli_lastnick(acptr)))
{
ServerStats->is_kill++;
if (!IsServer(sptr))
{
/* If this was a nick change and not a nick introduction, we
* need to ensure that we remove our record of the client, and
* send a KILL to the whole network.
*/
assert(!MyConnect(sptr));
/* Inform the rest of the net... */
sendcmdto_serv_butone(&me, CMD_KILL, 0, "%C :%s (%s)",
sptr, cli_name(&me), type);
/* Don't go sending off a QUIT message... */
SetFlag(sptr, FLAG_KILLED);
/* Remove them locally. */
exit_client_msg(cptr, sptr, &me,
"Killed (%s (%s))",
feature_str(FEAT_HIS_SERVERNAME), type);
}
else
{
/* If the origin is a server, this was a new client, so we only
* send the KILL in the direction it came from. We have no
* client record that we would have to clean up.
*/
sendcmdto_one(&me, CMD_KILL, cptr, "%s :%s (%s)",
parv[parc - 2], cli_name(&me), type);
}
/* If the timestamps differ and we just killed sptr, we don't need to kill
* acptr as well.
*/
if (lastnick != cli_lastnick(acptr))
return 0;
}
/* Tell acptr why we are killing it. */
send_reply(acptr, ERR_NICKCOLLISION, nick);
ServerStats->is_kill++;
SetFlag(acptr, FLAG_KILLED);
/*
* This exits the client we had before getting the NICK message
*/
sendcmdto_serv_butone(&me, CMD_KILL, NULL, "%C :%s (%s)",
acptr, feature_str(FEAT_HIS_SERVERNAME),
type);
exit_client_msg(cptr, acptr, &me, "Killed (%s (%s))",
feature_str(FEAT_HIS_SERVERNAME), type);
if (lastnick == cli_lastnick(acptr))
return 0;
if (sptr == NULL)
return 0;
return set_nick_name(cptr, sptr, nick, parc, parv);
}
/*
* m_nick - message handler for local clients
* parv[0] = sender prefix
* parv[1] = nickname
*/
int m_nick(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
{
struct Client* acptr;
char nick[NICKLEN + 2];
char* arg;
char* s;
const char* client_name;
assert(0 != cptr);
assert(cptr == sptr);
if (IsServerPort(cptr))
return exit_client(cptr, cptr, &me, "Use a different port");
/*
* parv[0] will be empty for clients connecting for the first time
*/
client_name = (*(cli_name(sptr))) ? cli_name(sptr) : "*";
if (parc < 2) {
send_reply(sptr, ERR_NONICKNAMEGIVEN);
return 0;
}
/*
* Don't let them send make us send back a really long string of
* garbage
*/
arg = parv[1];
if (strlen(arg) > IRCD_MIN(NICKLEN, feature_int(FEAT_NICKLEN)))
arg[IRCD_MIN(NICKLEN, feature_int(FEAT_NICKLEN))] = '\0';
if ((s = strchr(arg, '~')))
*s = '\0';
strcpy(nick, arg);
/*
* If do_nick_name() returns a null name then reject it.
*/
if (0 == do_nick_name(nick)) {
send_reply(sptr, ERR_ERRONEUSNICKNAME, arg);
return 0;
}
/*
* Check if this is a LOCAL user trying to use a reserved (Juped)
* nick, if so tell him that it's a nick in use...
*/
if (isNickJuped(nick)) {
send_reply(sptr, ERR_NICKNAMEINUSE, nick);
return 0; /* NICK message ignored */
}
if (!(acptr = FindClient(nick))) {
/*
* No collisions, all clear...
*/
return set_nick_name(cptr, sptr, nick, parc, parv);
}
if (IsServer(acptr)) {
send_reply(sptr, ERR_NICKNAMEINUSE, nick);
return 0; /* NICK message ignored */
}
/*
* If acptr == sptr, then we have a client doing a nick
* change between *equivalent* nicknames as far as server
* is concerned (user is changing the case of his/her
* nickname or somesuch)
*/
if (acptr == sptr) {
/*
* If acptr == sptr, then we have a client doing a nick
* change between *equivalent* nicknames as far as server
* is concerned (user is changing the case of his/her
* nickname or somesuch)
*/
if (0 != strcmp(cli_name(acptr), nick)) {
/*
* Allows change of case in his/her nick
*/
return set_nick_name(cptr, sptr, nick, parc, parv);
}
/*
* This is just ':old NICK old' type thing.
* Just forget the whole thing here. There is
* no point forwarding it to anywhere,
* especially since servers prior to this
* version would treat it as nick collision.
*/
return 0;
}
/*
* Note: From this point forward it can be assumed that
* acptr != sptr (point to different client structures).
*/
assert(acptr != sptr);
/*
* If the older one is "non-person", the new entry is just
* allowed to overwrite it. Just silently drop non-person,
* and proceed with the nick. This should take care of the
* "dormant nick" way of generating collisions...
*
* XXX - hmmm can this happen after one is registered?
*
* Yes, client 1 connects to IRC and registers, client 2 connects and
* sends "NICK foo" but doesn't send anything more. client 1 now does
* /nick foo, they should succeed and client 2 gets disconnected with
* the message below.
*/
if (IsUnknown(acptr) && MyConnect(acptr)) {
ServerStats->is_ref++;
IPcheck_connect_fail(acptr);
exit_client(cptr, acptr, &me, "Overridden by other sign on");
return set_nick_name(cptr, sptr, nick, parc, parv);
}
/*
* NICK is coming from local client connection. Just
* send error reply and ignore the command.
*/
send_reply(sptr, ERR_NICKNAMEINUSE, nick);
return 0; /* NICK message ignored */
}
/*
* ms_nick - server message handler for nicks
* parv[0] = sender prefix
* parv[1] = nickname
*
* If from server, source is client:
* parv[2] = timestamp
*
* Source is server:
* parv[2] = hopcount
* parv[3] = timestamp
* parv[4] = username
* parv[5] = hostname
* parv[6] = umode (optional)
* parv[parc-3] = IP# <- Only Protocol >= 10
* parv[parc-2] = YXX, numeric nick <- Only Protocol >= 10
* parv[parc-1] = info
* parv[0] = server
*/
int ms_nick(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
{
struct Client* acptr;
char nick[NICKLEN + 2];
time_t lastnick = 0;
int differ = 1;
int samelastnick = 0;
assert(0 != cptr);
assert(0 != sptr);
assert(IsServer(cptr));
if ((IsServer(sptr) && parc < 8) || parc < 3) {
sendto_opmask_butone(0, SNO_OLDSNO, "bad NICK param count for %s from %C",
parv[1], cptr);
return need_more_params(sptr, "NICK");
}
ircd_strncpy(nick, parv[1], NICKLEN);
nick[NICKLEN] = '\0';
if (IsServer(sptr)) {
lastnick = atoi(parv[3]);
if (lastnick > OLDEST_TS && !IsBurstOrBurstAck(sptr))
cli_serv(sptr)->lag = TStime() - lastnick;
}
else {
lastnick = atoi(parv[2]);
if (lastnick > OLDEST_TS && !IsBurstOrBurstAck(sptr))
cli_serv(cli_user(sptr)->server)->lag = TStime() - lastnick;
}
/*
* If do_nick_name() returns a null name OR if the server sent a nick
* name and do_nick_name() changed it in some way (due to rules of nick
* creation) then reject it. If from a server and we reject it,
* and KILL it. -avalon 4/4/92
*/
if (0 == do_nick_name(nick) || 0 != strcmp(nick, parv[1])) {
send_reply(sptr, ERR_ERRONEUSNICKNAME, parv[1]);
++ServerStats->is_kill;
sendto_opmask_butone(0, SNO_OLDSNO, "Bad Nick: %s From: %s %C", parv[1],
parv[0], cptr);
sendcmdto_one(&me, CMD_KILL, cptr, "%s :%s (%s <- %s[%s])",
IsServer(sptr) ? parv[parc - 2] : parv[0],
cli_name(&me), parv[1], nick, cli_name(cptr));
if (!IsServer(sptr)) {
/*
* bad nick _change_
*/
sendcmdto_serv_butone(&me, CMD_KILL, 0, "%s :%s (%s <- %s!%s@%s)",
parv[0], cli_name(&me), cli_name(cptr), parv[0],
cli_user(sptr) ? cli_username(sptr) : "",
cli_user(sptr) ? cli_name(cli_user(sptr)->server) :
cli_name(cptr));
}
return 0;
}
/*
* Check against nick name collisions.
*
* Put this 'if' here so that the nesting goes nicely on the screen :)
* We check against server name list before determining if the nickname
* is present in the nicklist (due to the way the below for loop is
* constructed). -avalon
*/
assert(NULL == strchr(nick,'.'));
acptr = FindClient(nick);
if (!acptr) {
/*
* No collisions, all clear...
*/
return set_nick_name(cptr, sptr, nick, parc, parv);
}
assert(0 != acptr);
/*
* If acptr == sptr, then we have a client doing a nick
* change between *equivalent* nicknames as far as server
* is concerned (user is changing the case of his/her
* nickname or somesuch)
*/
if (acptr == sptr) {
if (strcmp(cli_name(acptr), nick) == 0)
/*
* This is just ':old NICK old' type thing.
* Just forget the whole thing here. There is
* no point forwarding it to anywhere,
* especially since servers prior to this
* version would treat it as nick collision.
*/
return 0; /* NICK Message ignored */
else
/*
* Allows change of case in his/her nick
*/
return set_nick_name(cptr, sptr, nick, parc, parv);
}
/*
* Note: From this point forward it can be assumed that
* acptr != sptr (point to different client structures).
*/
assert(acptr != sptr);
/*
* If the older one is "non-person", the new entry is just
* allowed to overwrite it. Just silently drop non-person,
* and proceed with the nick. This should take care of the
* "dormant nick" way of generating collisions...
*/
if (IsUnknown(acptr) && MyConnect(acptr)) {
++ServerStats->is_ref;
IPcheck_connect_fail(cli_ip(acptr));
exit_client(cptr, acptr, &me, "Overridden by other sign on");
return set_nick_name(cptr, sptr, nick, parc, parv);
}
/*
* Decide, we really have a nick collision and deal with it
*/
/*
* NICK was coming from a server connection.
* This means we have a race condition (two users signing on
* at the same time), or two net fragments reconnecting with the same nick.
* The latter can happen because two different users connected
* or because one and the same user switched server during a net break.
* If the TimeStamps are equal, we kill both (or only 'new'
* if it was a ":server NICK new ...").
* Otherwise we kill the youngest when user@host differ,
* or the oldest when they are the same.
* We treat user and ~user as different, because if it wasn't
* a faked ~user the AUTH wouldn't have added the '~'.
* --Run
*
*/
if (IsServer(sptr)) {
/*
* A new NICK being introduced by a neighbouring
* server (e.g. message type ":server NICK new ..." received)
*
* compare IP address and username
*/
differ = (cli_ip(acptr).s_addr != htonl(base64toint(parv[parc - 3]))) ||
(0 != ircd_strcmp(cli_user(acptr)->username, parv[4]));
sendto_opmask_butone(0, SNO_OLDSNO, "Nick collision on %C (%C %Tu <- "
"%C %Tu (%s user@host))", acptr, cli_from(acptr),
cli_lastnick(acptr), cptr, lastnick,
differ ? "Different" : "Same");
}
else {
/*
* A NICK change has collided (e.g. message type ":old NICK new").
*
* compare IP address and username
*/
differ = (cli_ip(acptr).s_addr != cli_ip(sptr).s_addr) ||
(0 != ircd_strcmp(cli_user(acptr)->username, cli_user(sptr)->username));
sendto_opmask_butone(0, SNO_OLDSNO, "Nick change collision from %C to "
"%C (%C %Tu <- %C %Tu)", sptr, acptr, cli_from(acptr),
cli_lastnick(acptr), cptr, lastnick);
}
/*
* Now remove (kill) the nick on our side if it is the youngest.
* If no timestamp was received, we ignore the incoming nick
* (and expect a KILL for our legit nick soon ):
* When the timestamps are equal we kill both nicks. --Run
* acptr->from != cptr should *always* be true (?).
*
* This exits the client sending the NICK message
*/
if (cli_from(acptr) != cptr) {
if ((differ && lastnick >= cli_lastnick(acptr)) ||
(!differ && lastnick <= cli_lastnick(acptr))) {
if (!IsServer(sptr)) {
++ServerStats->is_kill;
sendcmdto_serv_butone(&me, CMD_KILL, NULL, "%C :%s (Nick collision)",
sptr, cli_name(&me));
assert(!MyConnect(sptr));
SetFlag(sptr, FLAG_KILLED);
exit_client_msg(cptr, sptr, &me,
"Killed (%s (Nick collision))",
feature_str(FEAT_HIS_SERVERNAME));
sptr = 0; /* Make sure we don't use the dead client */
} else {
/* We need to kill this incoming client, which hasn't been properly registered yet.
* Send a KILL message upstream to the server it came from */
sendcmdto_one(&me, CMD_KILL, sptr, "%s :%s (Nick collision)", parv[parc-2], cli_name(&me));
}
/* If the two have the same TS then we want to kill both sides, so
* don't leave yet!
*/
if (lastnick != cli_lastnick(acptr))
return 0; /* Ignore the NICK */
}
send_reply(acptr, ERR_NICKCOLLISION, nick);
}
++ServerStats->is_kill;
SetFlag(acptr, FLAG_KILLED);
if (lastnick == cli_lastnick(acptr))
samelastnick = 1;
/*
* This exits the client we had before getting the NICK message
*/
if (differ) {
sendcmdto_serv_butone(&me, CMD_KILL, NULL, "%C :%s (older nick "
"overruled)", acptr, cli_name(&me));
if (MyConnect(acptr)) {
sendcmdto_one(acptr, CMD_QUIT, cptr, ":Killed (%s (older "
"nick overruled))", feature_str(FEAT_HIS_SERVERNAME));
sendcmdto_one(&me, CMD_KILL, acptr, "%C :%s (older nick "
"overruled)", acptr, feature_str(FEAT_HIS_SERVERNAME));
}
exit_client_msg(cptr, acptr, &me, "Killed (%s (older nick "
"overruled))", feature_str(FEAT_HIS_SERVERNAME));
}
else {
sendcmdto_serv_butone(&me, CMD_KILL, NULL, "%C :%s (nick collision from "
"same user@host)", acptr, cli_name(&me));
if (MyConnect(acptr)) {
sendcmdto_one(acptr, CMD_QUIT, cptr, ":Killed (%s (nick "
"collision from same user@host))",
feature_str(FEAT_HIS_SERVERNAME));
sendcmdto_one(&me, CMD_KILL, acptr, "%C :%s (older nick "
"overruled)", acptr, feature_str(FEAT_HIS_SERVERNAME));
}
exit_client_msg(cptr, acptr, &me, "Killed (%s (nick collision from "
"same user@host))", feature_str(FEAT_HIS_SERVERNAME));
}
if (samelastnick)
return 0;
assert(0 != sptr);
return set_nick_name(cptr, sptr, nick, parc, parv);
}
/*
* ms_svsnick - server message handler
* parv[0] = sender prefix
* parv[1] = Target numeric
* parv[2] = New nickname
*/
int ms_svsnick(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
{
struct Client* acptr = NULL;
struct Client* acptr2 = NULL;
char nick[NICKLEN + 2];
char* arg;
if (parc < 3)
return need_more_params(sptr, "SVSNICK");
if (!(acptr = findNUser(parv[1])))
return 0; /* Ignore SVSNICK for a user that has quit */
if (ircd_strcmp(cli_name(acptr), parv[2]) == 0)
return 0; /* Nick already set to what SVSNICK wants, ignoring... */
/*
* Basic sanity checks
*/
/*
* Don't let them make us send back a really long string of
* garbage
*/
arg = parv[2];
if (strlen(arg) > IRCD_MIN(NICKLEN, feature_int(FEAT_NICKLEN)))
arg[IRCD_MIN(NICKLEN, feature_int(FEAT_NICKLEN))] = '\0';
strcpy(nick, arg);
/*
* If do_nick_name() returns a null name then reject it.
*/
if (0 == do_nick_name(nick))
return 0;
/*
* Check if this is a LOCAL user trying to use a reserved (Juped)
* nick, if so tell him that it's a nick in use...
*/
if (isNickJuped(nick))
return 0; /* NICK message ignored */
if (feature_bool(FEAT_OPER_SINGLELETTERNICK) && !IsAnOper(acptr)
&& nick[1] == '\0')
return 0;
/*
* Set acptr2 to the client pointer of any user with nick's name.
* If the user is the same as the person being svsnick'ed, let it
* through as it is probably a change in the nickname's case.
*/
if ((acptr2 = FindClient(nick))) {
/*
* If acptr == acptr2, then we have a client doing a nick
* change between *equivalent* nicknames as far as server
* is concerned (user is changing the case of his/her
* nickname or somesuch), so we let it through :)
*/
if (acptr != acptr2) {
/* Nick collision occured, kill user with specific reason */
++ServerStats->is_kill;
/* ??? - Why do we use cptr here? */
SetFlag(cptr, FLAG_KILLED);
exit_client(cptr, acptr2, &me, "Killed (Nickname Enforcement)");
}
}
set_nick_name(acptr, acptr, nick, parc, parv, 1);
sendcmdto_serv_butone(sptr, CMD_SVSNICK, cptr, "%s %s", parv[1], nick);
return 0;
}
/*
* m_nick
* parv[0] = sender prefix
* parv[1] = nickname
* parv[2] = hopcount when new user; TS when nick change
* parv[3] = TS
* ---- new user only below ----
* parv[4] = umode
* parv[5] = username
* parv[6] = hostname
* parv[7] = server
* parv[8] = serviceid
* parv[9] = IP
* parv[10] = ircname
* -- endif
*/
int m_nick(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
struct simBan *ban;
aClient *acptr, *uplink;
Link *lp, *lp2;
char nick[NICKLEN + 2];
ts_val newts = 0;
int sameuser = 0, samenick = 0;
if (parc < 2)
{
sendto_one(sptr, err_str(ERR_NONICKNAMEGIVEN),
me.name, parv[0]);
return 0;
}
if (!IsServer(sptr) && IsServer(cptr) && parc > 2)
newts = atol(parv[2]);
else if (IsServer(sptr) && parc > 3)
newts = atol(parv[3]);
else
parc = 2;
/*
* parc == 2 on a normal client sign on (local) and a normal client
* nick change
* parc == 4 on a normal server-to-server client nick change
* parc == 11 on a normal TS style server-to-server NICK introduction
*/
if ((IsServer(sptr) || (parc > 4)) && (parc < 11))
{
/*
* We got the wrong number of params. Someone is trying to trick
* us. Kill it. -ThemBones As discussed with ThemBones, not much
* point to this code now sending a whack of global kills would
* also be more annoying then its worth, just note the problem,
* and continue -Dianora
*/
sendto_realops("IGNORING BAD NICK: %s[%s@%s] on %s (from %s)", parv[1],
(parc >= 6) ? parv[5] : "-",
(parc >= 7) ? parv[6] : "-",
(parc >= 8) ? parv[7] : "-", parv[0]);
return 0;
}
strncpyzt(nick, parv[1], NICKLEN + 1);
/*
* if do_nick_name() returns a null name OR if the server sent a
* nick name and do_nick_name() changed it in some way (due to rules
* of nick creation) then reject it. If from a server and we reject
* it, and KILL it. -avalon 4/4/92
*/
if (do_nick_name(nick) == 0 || (IsServer(cptr) && strcmp(nick, parv[1])))
{
sendto_one(sptr, err_str(ERR_ERRONEUSNICKNAME),
me.name, parv[0], parv[1], "Erroneous Nickname");
if (IsServer(cptr))
{
ircstp->is_kill++;
sendto_realops_lev(DEBUG_LEV, "Bad Nick: %s From: %s Via: %s",
parv[1], parv[0],
get_client_name(cptr, HIDEME));
sendto_one(cptr, ":%s KILL %s :%s (Bad Nick)",
me.name, parv[1], me.name);
if (sptr != cptr) { /* bad nick change */
sendto_serv_butone(cptr, ":%s KILL %s :%s (Bad Nick)", me.name,
parv[0], me.name);
sptr->flags |= FLAGS_KILLED;
return exit_client(cptr, sptr, &me, "BadNick");
}
}
return 0;
}
/*
* Check against nick name collisions.
*
* Put this 'if' here so that the nesting goes nicely on the screen
* :) We check against server name list before determining if the
* nickname is present in the nicklist (due to the way the below
* for loop is constructed). -avalon
*/
do
{
if ((acptr = find_server(nick, NULL)))
if (MyConnect(sptr))
{
sendto_one(sptr, err_str(ERR_NICKNAMEINUSE), me.name,
BadPtr(parv[0]) ? "*" : parv[0], nick);
return 0;
}
/*
* acptr already has result from find_server
* Well. unless we have a capricious server on the net, a nick can
* never be the same as a server name - Dianora
* That's not the only case; maybe someone broke do_nick_name
* or changed it so they could use "." in nicks on their network
* - sedition
*/
if (acptr)
{
/*
* We have a nickname trying to use the same name as a
* server. Send out a nick collision KILL to remove the
* nickname. As long as only a KILL is sent out, there is no
* danger of the server being disconnected. Ultimate way to
* jupiter a nick ? >;-). -avalon
*/
sendto_realops_lev(SKILL_LEV, "Nick collision on %s", sptr->name);
ircstp->is_kill++;
sendto_one(cptr, ":%s KILL %s :%s (Nick Collision)", me.name,
sptr->name, me.name);
sptr->flags |= FLAGS_KILLED;
return exit_client(cptr, sptr, &me, "Nick/Server collision");
}
if (!(acptr = find_client(nick, NULL)))
break;
/*
* If acptr == sptr, then we have a client doing a nick change
* between *equivalent* nicknames as far as server is concerned
* (user is changing the case of his/her nickname or somesuch)
*/
if (acptr == sptr)
{
if (strcmp(acptr->name, nick) == 0)
return 0;
else
break;
} /* If user is changing nick to itself no point in propogating */
/*
* Note: From this point forward it can be assumed that acptr !=
* sptr (point to different client structures).
*
* If the older one is "non-person", the new entry is just
* allowed to overwrite it. Just silently drop non-person, and
* proceed with the nick. This should take care of the "dormant
* nick" way of generating collisions...
*/
if (IsUnknown(acptr))
{
if (MyConnect(acptr))
{
exit_client(NULL, acptr, &me, "Overridden");
break;
}
else if (!(acptr->user))
{
sendto_realops_lev(SKILL_LEV, "Nick Collision on %s", parv[1]);
sendto_serv_butone(NULL, ":%s KILL %s :%s (Nick Collision)",
me.name, acptr->name, me.name);
acptr->flags |= FLAGS_KILLED;
/* Having no USER struct should be ok... */
return exit_client(cptr, acptr, &me,
"Got TS NICK before Non-TS USER");
}
}
if (!IsServer(cptr))
{
/*
* NICK is coming from local client connection. Just send
* error reply and ignore the command.
* parv[0] is empty on connecting clients
*/
sendto_one(sptr, err_str(ERR_NICKNAMEINUSE),
me.name, BadPtr(parv[0]) ? "*" : parv[0], nick);
return 0;
}
/*
* NICK was coming from a server connection. Means that the same
* nick is registered for different users by different server.
* This is either a race condition (two users coming online about
* same time, or net reconnecting) or just two net fragments
* becoming joined and having same nicks in use. We cannot have
* TWO users with same nick--purge this NICK from the system with
* a KILL... >;)
*
* Changed to something reasonable like IsServer(sptr) (true if
* "NICK new", false if ":old NICK new") -orabidoo
*/
if (IsServer(sptr))
{
/*
* A new NICK being introduced by a neighbouring server (e.g.
* message type "NICK new" received)
*/
if (!newts || !acptr->tsinfo || (newts == acptr->tsinfo))
{
sendto_realops_lev(SKILL_LEV, "Nick collision on %s", parv[1]);
ircstp->is_kill++;
sendto_one(acptr, err_str(ERR_NICKCOLLISION),
me.name, acptr->name, acptr->name);
sendto_serv_butone(NULL, ":%s KILL %s :%s (Nick Collision)",
me.name, acptr->name, me.name);
acptr->flags |= FLAGS_KILLED;
return exit_client(cptr, acptr, &me, "Nick collision");
}
else
{
/* XXX This looks messed up to me XXX - Raist */
sameuser = (acptr->user) &&
mycmp(acptr->user->username, parv[5]) == 0 &&
mycmp(acptr->user->host, parv[6]) == 0;
if ((sameuser && newts < acptr->tsinfo) ||
(!sameuser && newts > acptr->tsinfo))
{
return 0;
}
else
{
sendto_realops_lev(SKILL_LEV, "Nick collision on %s",parv[1]);
ircstp->is_kill++;
sendto_one(acptr, err_str(ERR_NICKCOLLISION),
me.name, acptr->name, acptr->name);
sendto_serv_butone(sptr, ":%s KILL %s :%s (Nick Collision)",
me.name, acptr->name, me.name);
acptr->flags |= FLAGS_KILLED;
(void) exit_client(cptr, acptr, &me, "Nick collision");
break;
}
}
}
/*
* * A NICK change has collided (e.g. message type * ":old NICK
* new". This requires more complex cleanout. * Both clients must be
* purged from this server, the "new" * must be killed from the
* incoming connection, and "old" must * be purged from all outgoing
* connections.
*/
if (!newts || !acptr->tsinfo || (newts == acptr->tsinfo) ||
!sptr->user)
{
sendto_realops_lev(SKILL_LEV, "Nick change collision: %s", parv[1]);
ircstp->is_kill++;
sendto_one(acptr, err_str(ERR_NICKCOLLISION),
me.name, acptr->name, acptr->name);
sendto_serv_butone(NULL, ":%s KILL %s :%s (Nick Collision)",me.name,
sptr->name, me.name);
ircstp->is_kill++;
sendto_serv_butone(NULL, ":%s KILL %s :%s (Nick Collision)",me.name,
acptr->name, me.name);
acptr->flags |= FLAGS_KILLED;
(void) exit_client(NULL, acptr, &me, "Nick collision(new)");
sptr->flags |= FLAGS_KILLED;
return exit_client(cptr, sptr, &me, "Nick collision(old)");
}
else
{
/* XXX This looks messed up XXX */
sameuser = mycmp(acptr->user->username, sptr->user->username) == 0
&& mycmp(acptr->user->host, sptr->user->host) == 0;
if ((sameuser && newts < acptr->tsinfo) ||
(!sameuser && newts > acptr->tsinfo)) {
if (sameuser)
sendto_realops_lev(SKILL_LEV,
"Nick change collision from %s to %s",
sptr->name, acptr->name);
ircstp->is_kill++;
sendto_serv_butone(cptr, ":%s KILL %s :%s (Nick Collision)", me.name,
sptr->name, me.name);
sptr->flags |= FLAGS_KILLED;
if (sameuser)
return exit_client(cptr, sptr, &me, "Nick collision(old)");
else
return exit_client(cptr, sptr, &me, "Nick collision(new)");
}
else
{
sendto_realops_lev(SKILL_LEV, "Nick collision on %s", acptr->name);
ircstp->is_kill++;
sendto_one(acptr, err_str(ERR_NICKCOLLISION),
me.name, acptr->name, acptr->name);
sendto_serv_butone(sptr, ":%s KILL %s :%s (Nick Collision)",me.name,
acptr->name, me.name);
acptr->flags |= FLAGS_KILLED;
(void) exit_client(cptr, acptr, &me, "Nick collision");
}
}
} while (0);
if (IsServer(sptr))
{
uplink = find_server(parv[7], NULL);
if(!uplink)
{
/* if we can't find the server this nick is on,
* complain loudly and ignore it. - lucas */
sendto_realops("Remote nick %s on UNKNOWN server %s",
nick, parv[7]);
return 0;
}
sptr = make_client(cptr, uplink);
/* If this is on a U: lined server, it's a U: lined client. */
if(IsULine(uplink))
sptr->flags|=FLAGS_ULINE;
add_client_to_list(sptr);
if (parc > 2)
sptr->hopcount = atoi(parv[2]);
if (newts)
{
sptr->tsinfo = newts;
}
else
{
newts = sptr->tsinfo = (ts_val) timeofday;
ts_warn("Remote nick %s introduced without a TS", nick);
}
/* copy the nick in place */
(void) strcpy(sptr->name, nick);
(void) add_to_client_hash_table(nick, sptr);
if (parc >= 10)
{
int *s, flag;
char *m;
/* parse the usermodes -orabidoo */
m = &parv[4][1];
while (*m)
{
for (s = user_modes; (flag = *s); s += 2)
if (*m == *(s + 1))
{
if ((flag == UMODE_o) || (flag == UMODE_O))
Count.oper++;
sptr->umode |= flag & SEND_UMODES;
break;
}
m++;
}
if (parc==10)
{
return do_user(nick, cptr, sptr, parv[5], parv[6],
parv[7], strtoul(parv[8], NULL, 0),
"0.0.0.0", parv[9]);
} else if (parc==11)
{
return do_user(nick, cptr, sptr, parv[5], parv[6], parv[7],
strtoul(parv[8], NULL, 0),
parv[9], parv[10]);
}
}
}
else if (sptr->name[0])
{
#ifdef DONT_CHECK_QLINE_REMOTE
if (MyConnect(sptr))
{
#endif
if ((ban = check_mask_simbanned(nick, SBAN_NICK)))
{
#ifndef DONT_CHECK_QLINE_REMOTE
if (!MyConnect(sptr))
sendto_realops("Restricted nick %s from %s on %s", nick,
(*sptr->name != 0 && !IsServer(sptr)) ?
sptr->name : "<unregistered>",
(sptr->user == NULL) ? ((IsServer(sptr)) ?
parv[6] : me.name) :
sptr->user->server);
#endif
if (MyConnect(sptr) && (!IsServer(cptr)) && (!IsOper(cptr))
&& (!IsULine(sptr)))
{
sendto_one(sptr, err_str(ERR_ERRONEUSNICKNAME), me.name,
BadPtr(parv[0]) ? "*" : parv[0], nick,
BadPtr(ban->reason) ? "Erroneous Nickname" :
ban->reason);
if (call_hooks(CHOOK_FORBID, cptr, nick, ban) != FLUSH_BUFFER)
sendto_realops_lev(REJ_LEV,
"Forbidding restricted nick %s from %s",
nick, get_client_name(cptr, FALSE));
return 0;
}
}
#ifdef DONT_CHECK_QLINE_REMOTE
}
#endif
if (MyConnect(sptr))
{
if (IsRegisteredUser(sptr))
{
/* before we change their nick, make sure they're not banned
* on any channels, and!! make sure they're not changing to
* a banned nick -sed */
/* a little cleaner - lucas */
for (lp = sptr->user->channel; lp; lp = lp->next)
{
if (can_send(sptr, lp->value.chptr, NULL))
{
sendto_one(sptr, err_str(ERR_BANNICKCHANGE), me.name,
sptr->name, lp->value.chptr->chname);
return 0;
}
if (nick_is_banned(lp->value.chptr, nick, sptr) != NULL)
{
sendto_one(sptr, err_str(ERR_BANONCHAN), me.name,
sptr->name, nick, lp->value.chptr->chname);
return 0;
}
}
#ifdef ANTI_NICK_FLOOD
if ((sptr->last_nick_change + MAX_NICK_TIME) < NOW)
sptr->number_of_nick_changes = 0;
sptr->last_nick_change = NOW;
sptr->number_of_nick_changes++;
if (sptr->number_of_nick_changes > MAX_NICK_CHANGES &&
!IsAnOper(sptr))
{
sendto_one(sptr,
":%s NOTICE %s :*** Notice -- Too many nick "
"changes. Wait %d seconds before trying again.",
me.name, sptr->name, MAX_NICK_TIME);
return 0;
}
#endif
/* If it changed nicks, -r it */
if ((sptr->umode & UMODE_r) && (mycmp(parv[0], nick) != 0))
{
unsigned int oldumode;
char mbuf[BUFSIZE];
oldumode = sptr->umode;
sptr->umode &= ~UMODE_r;
send_umode(sptr, sptr, oldumode, ALL_UMODES, mbuf);
}
/* LOCAL NICKHANGE */
/*
* Client just changing his/her nick. If he/she is on a
* channel, send note of change to all clients on that channel.
* Propagate notice to other servers.
*/
/* if the nickname is different, set the TS */
if (mycmp(parv[0], nick))
{
sptr->tsinfo = newts ? newts : (ts_val) timeofday;
}
sendto_common_channels(sptr, ":%s NICK :%s", parv[0],
nick);
if (sptr->user)
{
add_history(sptr, 1);
sendto_serv_butone(cptr, ":%s NICK %s :%ld",
parv[0], nick, sptr->tsinfo);
}
}
}
else
{
/* REMOTE NICKCHANGE */
/*
* Client just changing his/her nick. If he/she is on a
* channel, send note of change to all clients on that channel.
* Propagate notice to other servers.
*/
/* if the nickname is different, set the TS */
if (mycmp(parv[0], nick))
{
sptr->tsinfo = newts ? newts : (ts_val) timeofday;
}
sendto_common_channels(sptr, ":%s NICK :%s", parv[0], nick);
if (sptr->user)
{
add_history(sptr, 1);
sendto_serv_butone(cptr, ":%s NICK %s :%ld",
parv[0], nick, sptr->tsinfo);
}
/* If it changed nicks, -r it */
if (mycmp(parv[0], nick))
sptr->umode &= ~UMODE_r;
/*
* Flush the banserial for the channels the user is in, since this
* could be a SVSNICK induced nick change, which overrides any ban
* checking on the originating server.
*/
flush_user_banserial(sptr);
}
/* Remove dccallow entries for users who don't share common channel(s) unless they only change their nick capitalization -Kobi_S */
if(sptr->user && mycmp(parv[0], nick))
{
for(lp = sptr->user->dccallow; lp; lp = lp2)
{
lp2 = lp->next;
if(lp->flags == DCC_LINK_ME)
continue;
if(!find_shared_chan(sptr, lp->value.cptr))
{
sendto_one(lp->value.cptr, ":%s %d %s :%s has been removed from "
"your DCC allow list for signing off",
me.name, RPL_DCCINFO, lp->value.cptr->name, parv[0]);
del_dccallow(lp->value.cptr, sptr, 1);
}
}
}
}
else
{
/* Client setting NICK the first time */
if (MyConnect(sptr))
{
if ((ban = check_mask_simbanned(nick, SBAN_NICK)))
{
if (MyConnect(sptr) && (!IsServer(cptr)) && (!IsOper(cptr))
&& (!IsULine(sptr)))
{
sendto_one(sptr, err_str(ERR_ERRONEUSNICKNAME), me.name,
BadPtr(parv[0]) ? "*" : parv[0], nick,
BadPtr(ban->reason) ? "Erroneous Nickname" :
ban->reason);
if (call_hooks(CHOOK_FORBID, cptr, nick, ban) != FLUSH_BUFFER)
sendto_realops_lev(REJ_LEV,
"Forbidding restricted nick %s from %s", nick,
get_client_name(cptr, FALSE));
return 0;
}
}
}
strcpy(sptr->name, nick);
sptr->tsinfo = timeofday;
if (sptr->user)
{
/* USER already received, now we have NICK */
if (register_user(cptr, sptr, nick, sptr->user->username, NULL)
== FLUSH_BUFFER)
return FLUSH_BUFFER;
}
}
/* Finally set new nick name. */
if (sptr->name[0])
{
del_from_client_hash_table(sptr->name, sptr);
samenick = mycmp(sptr->name, nick) ? 0 : 1;
if (IsPerson(sptr))
{
if (!samenick)
hash_check_watch(sptr, RPL_LOGOFF);
#ifdef RWHO_PROBABILITY
probability_change(sptr->name, nick);
#endif
}
}
strcpy(sptr->name, nick);
add_to_client_hash_table(nick, sptr);
if (IsPerson(sptr) && !samenick)
hash_check_watch(sptr, RPL_LOGON);
return 0;
}
/*
* m_watch
*/
DLLFUNC CMD_FUNC(m_watch)
{
aClient *acptr;
char *s, **pav = parv, *user;
char *p = NULL, *def = "l";
int awaynotify = 0;
int did_l=0, did_s=0;
if (parc < 2)
{
/*
* Default to 'l' - list who's currently online
*/
parc = 2;
parv[1] = def;
}
for (s = (char *)strtoken(&p, *++pav, " "); s;
s = (char *)strtoken(&p, NULL, " "))
{
if ((user = (char *)index(s, '!')))
*user++ = '\0'; /* Not used */
if (!strcmp(s, "A") && WATCH_AWAY_NOTIFICATION)
awaynotify = 1;
/*
* Prefix of "+", they want to add a name to their WATCH
* list.
*/
if (*s == '+')
{
if (!*(s+1))
continue;
if (do_nick_name(s + 1))
{
if (sptr->watches >= MAXWATCH)
{
sendto_one(sptr,
err_str(ERR_TOOMANYWATCH), me.name,
cptr->name, s + 1);
continue;
}
add_to_watch_hash_table(s + 1, sptr, awaynotify);
}
show_watch(sptr, s + 1, RPL_NOWON, RPL_NOWOFF, awaynotify);
continue;
}
/*
* Prefix of "-", coward wants to remove somebody from their
* WATCH list. So do it. :-)
*/
if (*s == '-')
{
if (!*(s+1))
continue;
del_from_watch_hash_table(s + 1, sptr);
show_watch(sptr, s + 1, RPL_WATCHOFF, RPL_WATCHOFF, 0);
continue;
}
/*
* Fancy "C" or "c", they want to nuke their WATCH list and start
* over, so be it.
*/
if (*s == 'C' || *s == 'c')
{
hash_del_watch_list(sptr);
continue;
}
/*
* Now comes the fun stuff, "S" or "s" returns a status report of
* their WATCH list. I imagine this could be CPU intensive if its
* done alot, perhaps an auto-lag on this?
*/
if ((*s == 'S' || *s == 's') && !did_s)
{
Link *lp;
aWatch *anptr;
int count = 0;
did_s = 1;
/*
* Send a list of how many users they have on their WATCH list
* and how many WATCH lists they are on.
*/
anptr = hash_get_watch(sptr->name);
if (anptr)
for (lp = anptr->watch, count = 1;
(lp = lp->next); count++)
;
sendto_one(sptr, rpl_str(RPL_WATCHSTAT), me.name,
parv[0], sptr->watches, count);
/*
* Send a list of everybody in their WATCH list. Be careful
* not to buffer overflow.
*/
if ((lp = sptr->watch) == NULL)
{
sendto_one(sptr, rpl_str(RPL_ENDOFWATCHLIST),
me.name, parv[0], *s);
continue;
}
*buf = '\0';
strlcpy(buf, lp->value.wptr->nick, sizeof buf);
count =
strlen(parv[0]) + strlen(me.name) + 10 +
strlen(buf);
while ((lp = lp->next))
{
if (count + strlen(lp->value.wptr->nick) + 1 >
BUFSIZE - 2)
{
sendto_one(sptr, rpl_str(RPL_WATCHLIST),
me.name, parv[0], buf);
*buf = '\0';
count =
strlen(parv[0]) + strlen(me.name) +
10;
}
strcat(buf, " ");
strcat(buf, lp->value.wptr->nick);
count += (strlen(lp->value.wptr->nick) + 1);
}
sendto_one(sptr, rpl_str(RPL_WATCHLIST), me.name,
parv[0], buf);
sendto_one(sptr, rpl_str(RPL_ENDOFWATCHLIST), me.name,
parv[0], *s);
continue;
}
/*
* Well that was fun, NOT. Now they want a list of everybody in
* their WATCH list AND if they are online or offline? Sheesh,
* greedy arn't we?
*/
if ((*s == 'L' || *s == 'l') && !did_l)
{
Link *lp = sptr->watch;
did_l = 1;
while (lp)
{
if ((acptr =
find_person(lp->value.wptr->nick, NULL)))
{
sendto_one(sptr, rpl_str(RPL_NOWON),
me.name, parv[0], acptr->name,
acptr->user->username,
IsHidden(acptr) ? acptr->user->
virthost : acptr->user->realhost,
acptr->lastnick);
}
/*
* But actually, only show them offline if its a capital
* 'L' (full list wanted).
*/
else if (isupper(*s))
sendto_one(sptr, rpl_str(RPL_NOWOFF),
me.name, parv[0],
lp->value.wptr->nick, "*", "*",
lp->value.wptr->lasttime);
lp = lp->next;
}
sendto_one(sptr, rpl_str(RPL_ENDOFWATCHLIST), me.name,
parv[0], *s);
continue;
}
/*
* Hmm.. unknown prefix character.. Ignore it. :-)
*/
}
return 0;
}