DLLFUNC CMD_FUNC(m_svsfline)
{
if (!IsServer(sptr))
return 0;
if (parc < 2)
return 0;
switch (*parv[1])
{
/* Allow non-U:lines to send ONLY SVSFLINE +, but don't send it out
* unless it is from a U:line -- codemastr */
case '+':
{
if (parc < 4)
return 0;
if (!Find_deny_dcc(parv[2]))
DCCdeny_add(parv[2], parv[3], DCCDENY_HARD, CONF_BAN_TYPE_AKILL);
if (IsULine(sptr))
sendto_serv_butone_token(cptr,
sptr->name,
MSG_SVSFLINE, TOK_SVSFLINE,
"+ %s :%s",
parv[2], parv[3]);
break;
}
case '-':
{
ConfigItem_deny_dcc *deny;
if (!IsULine(sptr))
return 0;
if (parc < 3)
return 0;
if (!(deny = Find_deny_dcc(parv[2])))
break;
DCCdeny_del(deny);
sendto_serv_butone_token(cptr, sptr->name,
MSG_SVSFLINE, TOK_SVSFLINE, "%s",
parv[2]);
break;
}
case '*':
{
if (!IsULine(sptr))
return 0;
dcc_wipe_services();
sendto_serv_butone_token(cptr, sptr->name,
MSG_SVSFLINE, TOK_SVSFLINE,
"*");
break;
}
}
return 0;
}
DLLFUNC int m_rawto(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
aClient *acptr = NULL;
if (!IsULine(sptr))
{
sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name, parv[0]);
return -1;
}
if (parc < 3)
{
sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS),
me.name, parv[0], "RAWTO");
return -1;
}
if ((acptr = find_client(parv[1], NULL)))
{
if (MyConnect(acptr))
{
sendto_one(acptr, "%s", parv[2]);
return 0;
}
else
{
sendto_one(acptr, ":%s %s %s :%s",
parv[0], IsToken(acptr->from) ? TOK_RAWTO : MSG_RAWTO,
parv[1], parv[2]);
return 0;
}
}
return 0;
}
DLLFUNC char *umsg_notice(aClient *cptr, aClient *sptr, aClient *acptr, char *text, int notice)
{
Hook *tmphook;
int found = 0;
if (!notice || !IsULine(sptr))
return text;
/* We are going to deal with it ourselves! */
for (tmphook = Hooks[HOOKTYPE_USERMSG]; tmphook; tmphook = tmphook->next)
{
if (tmphook->func.pcharfunc == umsg_notice)
{
found = 1;
continue;
}
if (!found)
continue;
text = (*(tmphook->func.pcharfunc))(cptr, sptr, acptr, text, notice);
if (!text)
return NULL;
}
sendto_message_one(acptr, sptr, sptr->name, MSG_PRIVATE, acptr->name, text);
return NULL; /* always! we dealt with it! */
}
// Parts all insecure users on a +z channel (NOT KICK)
void f_part_insecure_users (aChannel *chptr)
{
Member *member, *mb2;
aClient *cptr;
char *comment = "Insecure user not allowed on secure channel (+z)";
for (member = chptr->members; member; member = mb2)
{
mb2 = member->next;
cptr = member->cptr;
if (MyClient(cptr) && !IsSecureConnect(cptr) && !IsULine(cptr))
{
RunHook4(HOOKTYPE_LOCAL_PART, cptr, &me, chptr, comment);
if ((chptr->mode.mode & MODE_AUDITORIUM) && is_chanownprotop(cptr, chptr))
{
sendto_chanops_butone(cptr, chptr, ":%s!%s@%s PART %s :%s",
cptr->name, cptr->user->username, GetHost(cptr), chptr->chname, comment);
sendto_prefix_one(cptr, &me, ":%s!%s@%s PART %s :%s",
cptr->name, cptr->user->username, GetHost(cptr), chptr->chname, comment);
}
else
{
sendto_channel_butserv(chptr, &me, ":%s!%s@%s PART %s :%s",
cptr->name, cptr->user->username, GetHost(cptr), chptr->chname, comment);
}
sendto_one(cptr, err_str(ERR_SECUREONLYCHAN), me.name, cptr->name, chptr->chname);
sendto_serv_butone_token(&me, cptr->name, MSG_PART, TOK_PART, "%s :%s", chptr->chname, comment);
remove_user_from_channel(cptr, chptr);
}
}
}
int m_svso(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
aClient *acptr;
long fLag;
if (!IsULine(sptr))
return 0;
if (parc < 3)
return 0;
if (!(acptr = find_person(parv[1], (aClient *)NULL)))
return 0;
if (!MyClient(acptr))
{
sendto_one(acptr, ":%s SVSO %s %s", parv[0], parv[1], parv[2]);
return 0;
}
if (*parv[2] == '+')
{
int *i, flag;
char *m = NULL;
for (m = (parv[2] + 1); *m; m++)
{
for (i = oper_access; (flag = *i); i += 2)
{
if (*m == (char) *(i + 1))
{
acptr->oflag |= flag;
break;
}
}
}
}
if (*parv[2] == '-')
{
fLag = acptr->umodes;
if (IsOper(acptr) && !IsHideOper(acptr))
{
IRCstats.operators--;
VERIFY_OPERCOUNT(acptr, "svso");
}
if (IsAnOper(acptr))
delfrom_fdlist(acptr->slot, &oper_fdlist);
acptr->umodes &=
~(UMODE_OPER | UMODE_LOCOP | UMODE_HELPOP |UMODE_SERVICES |
UMODE_SADMIN | UMODE_ADMIN | UMODE_COADMIN);
acptr->umodes &=
~(UMODE_NETADMIN | UMODE_WHOIS);
acptr->umodes &=
~(UMODE_KIX | UMODE_DEAF | UMODE_HIDEOPER | UMODE_VICTIM);
acptr->oflag = 0;
remove_oper_snomasks(acptr);
RunHook2(HOOKTYPE_LOCAL_OPER, acptr, 0);
send_umode_out(acptr, acptr, fLag);
}
return 0;
}
// this is where we handle the MODE command
DLLFUNC int f_handle_mode (aClient *cptr, aClient *sptr, aChannel *chptr, char *mbuf, char *pbuf, time_t sendts, int samode)
{
int plusminus, securecount;
char *p;
if (f_config_ulinesecureaction == F_NOTHING)
return MOD_SUCCESS;
plusminus = 1;
for (p = mbuf; *p; p++)
{
if (*p == '+')
plusminus = 1;
else if (*p == '-')
plusminus = -1;
else if (*p == 'z' && plusminus == 1 && (IsServer(sptr) || IsULine(sptr)))
{
securecount = f_count_secure_users(chptr);
if (securecount < chptr->users)
{
sendto_snomask(SNO_EYES, "*** Uline %s set mode +z on %s: removing insecure users.",
sptr->name, chptr->chname );
if (f_config_ulinesecureaction == F_KICK || securecount > 0)
kick_insecure_users(chptr);
else
f_part_insecure_users(chptr);
}
}
}
return MOD_SUCCESS;
}
/* show_servers
* replies to stats v requests
*/
static void
show_servers(aClient *cptr, char *name)
{
aClient *cptr2;
DLink *lp;
int j = 0;
for (lp = server_list; lp; lp = lp->next)
{
cptr2 = lp->value.cptr;
#ifdef HIDEULINEDSERVS
if(IsULine(cptr2) && !IsAnOper(cptr))
continue;
#endif
j++;
sendto_one(cptr, ":%s %d %s :%s (%s!%s@%s) Idle: %ld",
me.name, RPL_STATSDEBUG, name, cptr2->name,
(cptr2->serv->bynick[0] ? cptr2->serv->bynick : "Remote."),
(cptr2->serv->byuser[0] ? cptr2->serv->byuser : "******"),
(cptr2->serv->byhost[0] ? cptr2->serv->byhost : "*"),
(long)(timeofday - cptr2->lasttime));
}
sendto_one(cptr, ":%s %d %s :%d Server%s", me.name, RPL_STATSDEBUG,
name, j, (j == 1) ? "" : "s");
}
DLLFUNC char *privdeaf_checkmsg(aClient *cptr, aClient *sptr, aClient *acptr, char *text, int notice)
{
if ((acptr->umodes & UMODE_PRIVDEAF) && !IsAnOper(sptr) && !IsULine(sptr) && !IsServer(sptr))
{
sendnotice(sptr, "Message to '%s' has not been sent. The user has +D set. This blocks private messages.", acptr->name);
return NULL;
} else
return text;
}
DLLFUNC char *privdeaf_checkmsg(aClient *cptr, aClient *sptr, aClient *acptr, char *text, int notice)
{
if ((acptr->umodes & UMODE_PRIVDEAF) && !IsAnOper(sptr) && !IsULine(sptr) && !IsServer(sptr))
{
sendnotice(sptr, "Message to '%s' not delivered: User does not accept private messages", acptr->name);
return NULL;
} else
return text;
}
char *nocolor_pre_usermsg(aClient *sptr, aClient *acptr, char *text, int notice)
{
if (IsULine(sptr) || IsServer(sptr))
return text;
if (acptr->umodes & UMODE_STRIPCOLOR)
return StripColors(text);
return text;
}
DLLFUNC char *restrictcolors_checkmsg(aClient *cptr, aClient *sptr, aChannel *chptr, char *text, int notice)
{
if (IsULine(sptr) || IsServer(sptr))
return text;
if (chptr->mode.extmode && RESTRICT_COLORS && !is_chan_op(sptr, chptr) && !is_halfop(sptr, chptr))
return StripColors(text);
return text;
}
int sendmodeto_one(aClient *cptr, char *from, char *name, char *mode, char *param, TS creationtime)
{
if ((IsServer(cptr) && DoesOp(mode) && creationtime) ||
IsULine(cptr))
sendto_one(cptr, ":%s MODE %s %s %s %lu", from,
name, mode, param, creationtime);
else
sendto_one(cptr, ":%s MODE %s %s %s", from, name, mode, param);
return 0;
}
char *h_nocodes_chanmsg(aClient *cptr, aClient *sptr, aChannel *acptr, char *text, int notice)
{
static char retbuf[4096];
if (IsULine(sptr) || IsServer(sptr)) {
return text;
}
if (IsNoCodes(acptr)) {
strncpyzt(retbuf, StripControlCodes(text), sizeof(retbuf));
return retbuf;
}
else {
return text;
}
}
static void send_who_reply(aClient *sptr, aClient *acptr,
char *channel, char *status, char *xstat)
{
char *stat;
char *host;
int flat = (FLAT_MAP && !IsAnOper(sptr)) ? 1 : 0;
stat = malloc(strlen(status) + strlen(xstat) + 1);
sprintf(stat, "%s%s", status, xstat);
if (IsAnOper(sptr))
{
if (who_flags & WF_REALHOST)
host = acptr->user->realhost;
else if (who_flags & WF_IP)
host = (acptr->user->ip_str ? acptr->user->ip_str :
acptr->user->realhost);
else
host = GetHost(acptr);
}
else
host = GetHost(acptr);
if (IsULine(acptr) && !IsOper(sptr) && HIDE_ULINES)
sendto_one(sptr, getreply(RPL_WHOREPLY), me.name, sptr->name,
channel, /* channel name */
acptr->user->username, /* user name */
host, /* hostname */
"hidden", /* let's hide the server from normal users if the server is a uline and HIDE_ULINES is on */
acptr->name, /* nick */
stat, /* status */
0, /* hops (hidden) */
acptr->info /* realname */
);
else
sendto_one(sptr, getreply(RPL_WHOREPLY), me.name, sptr->name,
channel, /* channel name */
acptr->user->username, /* user name */
host, /* hostname */
acptr->user->server, /* server name */
acptr->name, /* nick */
stat, /* status */
flat ? 0 : acptr->hopcount, /* hops */
acptr->info /* realname */
);
free(stat);
}
/*
** 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;
}
int m_svsnoop(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
aClient *acptr;
if (!(IsULine(sptr) && parc > 2))
return 0;
/* svsnoop bugfix --binary */
if (hunt_server_token(cptr, sptr, MSG_SVSNOOP, TOK_SVSNOOP, "%s :%s", 1, parc,
parv) == HUNTED_ISME)
{
if (parv[2][0] == '+')
{
SVSNOOP = 1;
sendto_ops("This server has been placed in NOOP mode");
for (acptr = &me; acptr; acptr = acptr->prev)
{
if (MyClient(acptr) && IsAnOper(acptr))
{
if (IsOper(acptr))
{
IRCstats.operators--;
VERIFY_OPERCOUNT(acptr, "svsnoop");
}
if (IsAnOper(acptr))
delfrom_fdlist(acptr->slot, &oper_fdlist);
if (IsTotalInvis(acptr)) {
sendto_channels_inviso_join(acptr);
}
acptr->umodes &= ~(UMODE_OPER|UMODE_HELPOP|UMODE_SADMIN|UMODE_ADMIN|UMODE_LOCOP|UMODE_SERVICES|UMODE_NETADMIN);
acptr->umodes &= ~(UMODE_WHOIS|UMODE_KIX|UMODE_HIDEOPER|UMODE_HIDEWHOIS|UMODE_TOTALINVIS|UMODE_MODEWALK|UMODE_NOFAKELAG);
acptr->oflag = 0;
remove_oper_snomasks(acptr);
sendto_one(acptr, ":%s NOTICE %s :*** Your OFLAGS have been cleared, because this server has been placed in NOOP mode", me.name, acptr->name);
RunHook2(HOOKTYPE_LOCAL_OPER, acptr, 0);
}
}
}
else
{
SVSNOOP = 0;
sendto_ops("This server is no longer in NOOP mode");
}
}
return 0;
}
/*
** m_svslusers
** parv[0] = sender
** parv[1] = server to update
** parv[2] = max global users
** parv[3] = max local users
** If -1 is specified for either number, it is ignored and the current count
** is kept.
*/
int m_svslusers(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
if (!IsULine(sptr) || parc < 4)
return -1;
if (hunt_server_token(cptr, sptr, MSG_SVSLUSERS, TOK_SVSLUSERS, "%s %s :%s", 1, parc,
parv) == HUNTED_ISME)
{
int temp;
temp = atoi(parv[2]);
if (temp >= 0)
IRCstats.global_max = temp;
temp = atoi(parv[3]);
if (temp >= 0)
IRCstats.me_max = temp;
}
return 0;
}
/*
** m_sanick() - PID - 08-08-2011
**
** parv[0] - sender
** parv[1] - nick to make join
** parv[2] - channel(s) to join
*/
int m_sanick(aClient * cptr, aClient * sptr, int parc, char *parv[]) {
aClient *acptr;
char *param[3];
int self = 0;
// if (IsServer(sptr) || IsServices(sptr))
// return 0; //Servers and Services should be invoking SVSNICK directly...
if (!IsOper(sptr) && !IsAdmin(sptr) && !IsULine(sptr)) {
sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name, parv[0]);
return 0;
}
if (parv[1] == NULL || !parv[1] || !parv[2]) {
sendnotice(sptr, "*** Usage: \2/sanick oldnick newnick\2");
return 0;
}
if (parv[2] == NULL || !(acptr = find_person(parv[1], NULL))) {
sendnotice(sptr, "*** No such user, %s.", parv[1]);
return 0;
}
if (!strcmp(parv[2], parv[1]) || !strcmp(parv[2], parv[0])) {
sendnotice(sptr, "*** Perhaps I should warn people that they have given an idiot IRCOp access?");
return 0;
}
if (!strcmp(parv[0], parv[1]))
self = 1;
if (find_client(parv[2], NULL)) {
sendnotice(sptr, "*** WARNING: User %s already exists!", parv[2]);
return 0;
}
if(acptr->umodes & UMODE_REGNICK)
acptr->umodes &= ~UMODE_REGNICK;
param[0] = acptr->name;
param[1] = parv[2];
param[2] = NULL;
sendnotice(acptr, "*** You were forced to change your nick to %s", parv[2]);
do_cmd(acptr, acptr, "NICK", 2, param);
if(self) {
sendto_realops("%s used \2SANICK\2 to change their nick to %s.", parv[1], parv[2]);
ircd_log(LOG_SACMDS,"SANICK: %s used SANICK to change their nick to %s", parv[1], parv[2]);
} else {
sendto_realops("%s used \2SANICK\2 to make %s change their nick to %s.", parv[0], parv[1], parv[2]);
ircd_log(LOG_SACMDS,"SANICK: %s used SANICK to make %s change their nick to %s", acptr->name, parv[1], parv[2]);
}
return 0;
}
int channel_canjoin(aClient *sptr, char *name)
{
ConfigItem_deny_channel *p;
if (IsOper(sptr))
return 1;
if (IsULine(sptr))
return 1;
if (!conf_deny_channel)
return 1;
p = Find_channel_allowed(name);
if (p)
{
sendto_one(sptr, ":%s NOTICE %s :*** %s",
me.name, sptr->name, p->reason);
return 0;
}
return 1;
}
/** Kicks all insecure users on a +z channel */
static void secureonly_kick_insecure_users(aChannel *chptr)
{
Member *member, *mb2;
aClient *cptr;
int i = 0;
Hook *h;
char *comment = "Insecure user not allowed on secure channel (+z)";
if (!IsSecureOnly(chptr))
return;
for (member = chptr->members; member; member = mb2)
{
mb2 = member->next;
cptr = member->cptr;
if (MyClient(cptr) && !IsSecureConnect(cptr) && !IsULine(cptr))
{
RunHook5(HOOKTYPE_LOCAL_KICK, &me, &me, cptr, chptr, comment);
i = 0;
for (h = Hooks[HOOKTYPE_VISIBLE_IN_CHANNEL]; h; h = h->next)
{
i = (*(h->func.intfunc))(cptr,chptr);
if (i != 0)
break;
}
if (i != 0 && !(is_skochanop(cptr, chptr) || has_voice(cptr,chptr)))
{
sendto_chanops_butone(cptr, chptr, ":%s KICK %s %s :%s", me.name, chptr->chname, cptr->name, comment);
sendto_prefix_one(cptr, &me, ":%s KICK %s %s :%s", me.name, chptr->chname, cptr->name, comment);
}
else
{
sendto_channel_butserv(chptr, &me, ":%s KICK %s %s :%s", me.name, chptr->chname, cptr->name, comment);
}
sendto_server(&me, 0, 0, ":%s KICK %s %s :%s", me.name, chptr->chname, cptr->name, comment);
remove_user_from_channel(cptr, chptr);
}
}
}
void exit_server(aClient *lcptr, aClient *cptr, aClient *from, char *comment)
{
char splitname[HOSTLEN + HOSTLEN + 2];
#ifdef HIDE_SPLIT_SERVERS
ircsprintf(splitname, "%s %s", HIDDEN_SERVER_NAME, HIDDEN_SERVER_NAME);
#else
/* Don't show uplink servers for a u:lined link! */
if(IsULine(cptr))
ircsprintf(splitname, "%s %s", cptr->name, cptr->name);
else
ircsprintf(splitname, "%s %s", cptr->uplink->name, cptr->name);
#endif
Debug((DEBUG_NOTICE, "exit_server(%s, %s, %s)", cptr->name, from->name,
comment));
exit_one_server(cptr, cptr, from, lcptr, splitname, comment);
}
int nokick_can_kick(aClient *sptr, aClient *target, aChannel *chptr, char *comment,
long sptr_flags, long target_flags, char **reject_reason)
{
static char errmsg[NICKLEN+256];
if (IsNokick(target) && !IsULine(sptr) && MyClient(sptr) && !ValidatePermissionsForPath("override:kick:nokick",sptr,target,chptr,NULL))
{
ircsnprintf(errmsg, sizeof(errmsg), err_str(ERR_CANNOTDOCOMMAND),
me.name, sptr->name, "KICK",
"user is unkickable (user mode +q)");
*reject_reason = errmsg;
sendnotice(target,
"*** umode q: %s tried to kick you from channel %s (%s)",
sptr->name, chptr->chname, comment);
return EX_ALWAYS_DENY;
}
return EX_ALLOW;
}
int channel_canjoin(aClient *sptr, char *name)
{
ConfigItem_deny_channel *p;
aTKline *tklban;
int ishold;
if (!ValidatePermissionsForPath("channel:restricted",sptr,NULL,NULL,name))
return 1;
if (IsULine(sptr))
return 1;
if (!conf_deny_channel)
return 1;
p = Find_channel_allowed(sptr, name);
if (p)
{
sendto_one(sptr, err_str(ERR_FORBIDDENCHANNEL), me.name, sptr->name, name, p->reason);
return 0;
}
if ((tklban = find_qline(sptr, name, &ishold)))
{
sendto_one(sptr, err_str(ERR_FORBIDDENCHANNEL), me.name, sptr->name, name, tklban->reason);
return 0;
}
return 1;
}
DLLFUNC int m_rmtkl(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
aTKline *tk, *next = NULL;
TKLType *tkltype;
char *types, *uhmask, *cmask, *p;
char gmt[256], flag;
int tklindex;
if (!IsULine(sptr) && !(IsPerson(sptr) && IsAnOper(sptr)))
{
sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name, parv[0]);
return -1;
}
if (IsNotParam(1))
return dumpit(sptr, rmtkl_help);
if (IsNotParam(2))
{
sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS), me.name, parv[0], "RMTKL");
sendnotice(sptr, "Type '/RMTKL' for help");
return 0;
}
types = parv[1];
uhmask = parv[2];
cmask = IsParam(3) ? parv[3] : NULL;
/* I don't add 'q' and 'Q' here. They are different. */
if (strchr(types, '*'))
types = "KzGZs";
/* check access */
if (!IsULine(sptr))
for (p = types; *p; p++)
{
tkltype = find_TKLType_by_flag(*p);
if (!tkltype->type)
continue;
if (((tkltype->type & TKL_GLOBAL) && !IsOper(sptr))
|| !(sptr->oflag & tkltype->oflag))
{
sendto_one(sptr, err_str(ERR_NOPRIVILEGES),
me.name, parv[0]);
return -1;
}
}
for (tkltype = tkl_types; tkltype->type; tkltype++)
{
flag = tkltype->flag;
tklindex = tkl_hash(flag);
if (!strchr(types, flag))
continue;
for (tk = tklines[tklindex]; tk; tk = next)
{
next = tk->next;
if (tk->type != tkltype->type)
continue;
if (tk->type & TKL_NICK)
{
/*
* If it's a services hold (ie. NickServ is holding
* a nick), it's better not to touch it
*/
if (*tk->usermask == 'H')
continue;
if (match(uhmask, tk->hostmask))
continue;
}
else
if (match(uhmask, make_user_host(tk->usermask, tk->hostmask)))
continue;
if (cmask && _match(cmask, tk->reason))
continue;
strncpyzt(gmt, asctime(gmtime((TS *)&tk->set_at)),
sizeof gmt);
iCstrip(gmt);
if (tk->type & TKL_NICK)
{
sendto_snomask(SNO_TKL, "%s removed %s %s (set at %s "
"- reason: %s)",
sptr->name, tkltype->txt, tk->hostmask, gmt,
tk->reason);
ircd_log(LOG_TKL, "%s removed %s %s (set at %s "
"- reason: %s)",
sptr->name, tkltype->txt, tk->hostmask,
gmt, tk->reason);
}
else
{
sendto_snomask(SNO_TKL, "%s removed %s %s@%s (set at "
"%s - reason: %s)",
sptr->name, tkltype->txt, tk->usermask,
tk->hostmask, gmt, tk->reason);
ircd_log(LOG_TKL, "%s removed %s %s@%s (set at "
"%s - reason: %s)",
sptr->name, tkltype->txt, tk->usermask,
tk->hostmask, gmt, tk->reason);
}
if ((tk->type & TKL_GLOBAL) && flag)
sendto_serv_butone_token(&me, me.name, MSG_TKL, TOK_TKL,
"- %c %s %s %s",
flag, tk->usermask, tk->hostmask, parv[0]);
if (tk->type & TKL_SHUN)
tkl_check_local_remove_shun(tk);
my_tkl_del_line(tk, tklindex);
}
}
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;
}
/*
* exit_client
* This is old "m_bye". Name changed, because this is not a
* protocol function, but a general server utility function.
*
* This function exits a client of *any* type (user, server, etc)
* from this server. Also, this generates all necessary prototol
* messages that this exit may cause.
*
* 1) If the client is a local client, then this implicitly exits
* all other clients depending on this connection (e.g. remote
* clients having 'from'-field that points to this.
*
* 2) If the client is a remote client, then only this is exited.
*
* For convenience, this function returns a suitable value for
* m_function return value:
*
* FLUSH_BUFFER if (cptr == sptr)
* 0 if (cptr != sptr)
*/
int
exit_client(aClient *cptr, aClient *sptr, aClient *from, char *comment)
{
#ifdef FNAME_USERLOG
time_t on_for;
#endif
if (MyConnect(sptr))
{
call_hooks(CHOOK_SIGNOFF, sptr);
if (IsUnknown(sptr))
Count.unknown--;
if (IsAnOper(sptr))
remove_from_list(&oper_list, sptr, NULL);
if (sptr->flags & FLAGS_HAVERECVQ)
{
/* mark invalid, will be deleted in do_recvqs() */
DLink *lp = find_dlink(recvq_clients, sptr);
if (lp)
lp->flags = -1;
}
if (IsClient(sptr))
Count.local--;
if (IsNegoServer(sptr))
sendto_realops("Lost server %s during negotiation: %s",
sptr->name, comment);
if (IsServer(sptr))
{
Count.myserver--;
if (IsULine(sptr))
Count.myulined--;
remove_from_list(&server_list, sptr, NULL);
if (server_list == NULL)
server_was_split = YES;
}
sptr->flags |= FLAGS_CLOSING;
if (IsPerson(sptr))
{
Link *lp, *next;
LOpts *lopt = sptr->user->lopt;
/* poof goes their watchlist! */
hash_del_watch_list(sptr);
/* if they have listopts, axe those, too */
if(lopt != NULL)
{
remove_from_list(&listing_clients, sptr, NULL);
for (lp = lopt->yeslist; lp; lp = next)
{
next = lp->next;
MyFree(lp->value.cp);
free_link(lp);
}
for (lp = lopt->nolist; lp; lp = next)
{
next = lp->next;
MyFree(lp->value.cp);
free_link(lp);
}
MyFree(sptr->user->lopt);
sptr->user->lopt = NULL;
}
sendto_realops_lev(CCONN_LEV,
"Client exiting: %s (%s@%s) [%s] [%s]",
sptr->name, sptr->user->username,
sptr->user->host,
(sptr->flags & FLAGS_NORMALEX) ?
"Client Quit" : comment,
sptr->hostip);
}
#ifdef FNAME_USERLOG
on_for = timeofday - sptr->firsttime;
#endif
#if defined(USE_SYSLOG) && defined(SYSLOG_USERS)
if (IsPerson(sptr))
syslog(LOG_NOTICE, "%s (%3d:%02d:%02d): %s!%s@%s %d/%d\n",
myctime(sptr->firsttime),
on_for / 3600, (on_for % 3600) / 60,
on_for % 60, sptr->name,
sptr->user->username, sptr->user->host,
sptr->sendK, sptr->receiveK);
#endif
#if defined(FNAME_USERLOG)
{
char linebuf[300];
static int logfile = -1;
static long lasttime;
/*
* This conditional makes the logfile active only after it's
* been created - thus logging can be turned off by removing
* the file.
*
* stop NFS hangs...most systems should be able to open a file in
* 3 seconds. -avalon (curtesy of wumpus)
*
* Keep the logfile open, syncing it every 10 seconds -Taner
*/
if (IsPerson(sptr))
{
if (logfile == -1)
{
alarm(3);
logfile = open(FNAME_USERLOG, O_WRONLY | O_APPEND);
alarm(0);
}
ircsprintf(linebuf, "%s (%3d:%02d:%02d): %s!%s@%s %d/%d\n",
myctime(sptr->firsttime), on_for / 3600,
(on_for % 3600) / 60, on_for % 60,
sptr->name, sptr->user->username,
sptr->user->host, sptr->sendK, sptr->receiveK);
alarm(3);
write(logfile, linebuf, strlen(linebuf));
alarm(0);
/* Resync the file evey 10 seconds*/
if (timeofday - lasttime > 10)
{
alarm(3);
close(logfile);
alarm(0);
logfile = -1;
lasttime = timeofday;
}
}
}
#endif
if (sptr->fd >= 0)
{
if (cptr != NULL && sptr != cptr)
sendto_one(&me, sptr, "ERROR :Closing Link: %s %s (%s)",
IsPerson(sptr) ? sptr->sockhost : "0.0.0.0",
sptr->name, comment);
else
sendto_one(&me, sptr, "ERROR :Closing Link: %s (%s)",
IsPerson(sptr) ? sptr->sockhost : "0.0.0.0",
comment);
}
/*
* * Currently only server connections can have * depending
* remote clients here, but it does no * harm to check for all
* local clients. In * future some other clients than servers
* might * have remotes too... *
*
* Close the Client connection first and mark it * so that no
* messages are attempted to send to it. *, The following *must*
* make MyConnect(sptr) == FALSE!). * It also makes sptr->from ==
* NULL, thus it's unnecessary * to test whether "sptr != acptr"
* in the following loops.
*/
if (IsServer(sptr))
{
sendto_ops("%s was connected for %lu seconds. %lu/%lu "
"sendK/recvK.", sptr->name,
(long)(timeofday - sptr->firsttime),
sptr->sendK, sptr->receiveK);
#ifdef USE_SYSLOG
syslog(LOG_NOTICE, "%s was connected for %lu seconds. %lu/%lu "
"sendK/recvK.", sptr->name,
(u_long) timeofday - sptr->firsttime,
sptr->sendK, sptr->receiveK);
#endif
close_connection(sptr);
sptr->sockerr = 0;
sptr->flags |= FLAGS_DEADSOCKET;
}
else
{
close_connection(sptr);
sptr->sockerr = 0;
sptr->flags |= FLAGS_DEADSOCKET;
}
}
exit_one_client(cptr, sptr, from, comment);
return cptr == sptr ? FLUSH_BUFFER : 0;
}
/*
* do_svssno()
* parv[0] - sender
* parv[1] - username to change snomask for
* parv[2] - snomasks to change
* show_change determines whether to show the change to the user
*/
int do_svssno(aClient *cptr, aClient *sptr, int parc, char *parv[], int show_change)
{
char *p;
aClient *acptr;
int what = MODE_ADD, i;
if (!IsULine(sptr))
return 0;
if (parc < 2)
return 0;
if (parv[1][0] == '#')
return 0;
if (!(acptr = find_person(parv[1], NULL)))
return 0;
if (hunt_server_token(cptr, sptr,
show_change ? MSG_SVS2SNO : MSG_SVSSNO,
show_change ? TOK_SVS2SNO : TOK_SVSSNO,
"%s %s", 1, parc, parv) != HUNTED_ISME)
{
return 0;
}
if (MyClient(acptr))
{
if (parc == 2)
acptr->user->snomask = 0;
else
{
for (p = parv[2]; p && *p; p++) {
switch (*p) {
case '+':
what = MODE_ADD;
break;
case '-':
what = MODE_DEL;
break;
default:
for (i = 0; i <= Snomask_highest; i++)
{
if (!Snomask_Table[i].flag)
continue;
if (*p == Snomask_Table[i].flag)
{
if (what == MODE_ADD)
acptr->user->snomask |= Snomask_Table[i].mode;
else
acptr->user->snomask &= ~Snomask_Table[i].mode;
}
}
}
}
}
}
if (show_change)
sendto_one(acptr, rpl_str(RPL_SNOMASK), me.name, acptr->name, get_sno_str(acptr));
return 0;
}
static void
serv_info(aClient *cptr, char *name)
{
static char Lformat[] = ":%s %d %s %s %u %u %u %u %u :%u %u %s";
long sendK, receiveK, uptime;
aClient *acptr;
DLink *lp;
int i = 0;
sendK = receiveK = 0;
for (lp = server_list; lp; lp = lp->next)
{
acptr = lp->value.cptr;
#ifdef HIDEULINEDSERVS
if (IsULine(acptr) && !IsAnOper(cptr))
continue;
#endif
sendK += acptr->sendK;
receiveK += acptr->receiveK;
sendto_one(cptr, Lformat, me.name, RPL_STATSLINKINFO,
name, ( (MyClient(cptr) && IsAdmin(cptr))
? get_client_name(acptr, FALSE)
: get_client_name(acptr, HIDEME) ),
(int) SBufLength(&acptr->sendQ),
(int) acptr->sendM, (int) acptr->sendK,
(int) acptr->receiveM, (int) acptr->receiveK,
timeofday - acptr->firsttime, timeofday - acptr->since,
IsServer(acptr) ? (DoesTS(acptr) ? "TS" : "NoTS") : "-");
if(RC4EncLink(acptr))
sendto_one(cptr, ":%s %d %s : - RC4 encrypted", me.name,
RPL_STATSDEBUG, name);
if(ZipOut(acptr))
{
unsigned long ib, ob;
double rat;
zip_out_get_stats(acptr->serv->zip_out, &ib, &ob, &rat);
if(ib)
{
sendto_one(cptr, ":%s %d %s : - [O] Zip inbytes %lu, "
"outbytes %lu (%3.2f%%)", me.name, RPL_STATSDEBUG,
name, ib, ob, rat);
}
}
if(ZipIn(acptr))
{
unsigned long ib, ob;
double rat;
zip_in_get_stats(acptr->serv->zip_in, &ib, &ob, &rat);
if(ob)
{
sendto_one(cptr, ":%s %d %s : - [I] Zip inbytes %lu, "
"outbytes %lu (%3.2f%%)", me.name, RPL_STATSDEBUG,
name, ib, ob, rat);
}
}
i++;
}
sendto_one(cptr, ":%s %d %s :%u total server%s",
me.name, RPL_STATSDEBUG, name, i, (i == 1) ? "" : "s");
sendto_one(cptr, ":%s %d %s :Sent total : %7.2f %s",
me.name, RPL_STATSDEBUG, name, _GMKv(sendK), _GMKs(sendK));
sendto_one(cptr, ":%s %d %s :Recv total : %7.2f %s",
me.name, RPL_STATSDEBUG, name, _GMKv(receiveK),
_GMKs(receiveK));
uptime = (timeofday - me.since);
sendto_one(cptr, ":%s %d %s :Server send: %7.2f %s (%4.1f K/s total,"
" %4.1f K/s current)", me.name, RPL_STATSDEBUG, name,
_GMKv(me.sendK), _GMKs(me.sendK),
(float) ((float) me.sendK / (float) uptime), curSendK);
sendto_one(cptr, ":%s %d %s :Server recv: %7.2f %s (%4.1f K/s total,"
" %4.1f K/s current)", me.name, RPL_STATSDEBUG, name,
_GMKv(me.receiveK), _GMKs(me.receiveK),
(float) ((float) me.receiveK / (float) uptime), curRecvK);
}
/* Routine that actually makes a user join the channel
* this does no actual checking (banned, etc.) it just adds the user
*/
DLLFUNC void _join_channel(aChannel *chptr, aClient *cptr, aClient *sptr, int flags)
{
char *parv[] = { 0, 0 };
/*
** Complete user entry to the new channel (if any)
*/
add_user_to_channel(chptr, sptr, flags);
/*
** notify all other users on the new channel
*/
if (chptr->mode.mode & MODE_AUDITORIUM)
{
if (MyClient(sptr))
sendto_one(sptr, ":%s!%s@%s JOIN :%s",
sptr->name, sptr->user->username,
GetHost(sptr), chptr->chname);
sendto_chanops_butone(NULL, chptr, ":%s!%s@%s JOIN :%s",
sptr->name, sptr->user->username,
GetHost(sptr), chptr->chname);
}
else
sendto_channel_butserv(chptr, sptr,
":%s JOIN :%s", sptr->name, chptr->chname);
sendto_serv_butone_token_opt(cptr, OPT_NOT_SJ3, sptr->name, MSG_JOIN,
TOK_JOIN, "%s", chptr->chname);
#ifdef JOIN_INSTEAD_OF_SJOIN_ON_REMOTEJOIN
if ((MyClient(sptr) && !(flags & CHFL_CHANOP)) || !MyClient(sptr))
sendto_serv_butone_token_opt(cptr, OPT_SJ3, sptr->name, MSG_JOIN,
TOK_JOIN, "%s", chptr->chname);
if (flags && !(flags & CHFL_DEOPPED))
{
#endif
/* I _know_ that the "@%s " look a bit wierd
with the space and all .. but its to get around
a SJOIN bug --stskeeps */
sendto_serv_butone_token_opt(cptr, OPT_SJ3|OPT_SJB64,
me.name, MSG_SJOIN, TOK_SJOIN,
"%B %s :%s%s ", (long)chptr->creationtime,
chptr->chname, chfl_to_sjoin_symbol(flags), sptr->name);
sendto_serv_butone_token_opt(cptr, OPT_SJ3|OPT_NOT_SJB64,
me.name, MSG_SJOIN, TOK_SJOIN,
"%li %s :%s%s ", chptr->creationtime,
chptr->chname, chfl_to_sjoin_symbol(flags), sptr->name);
#ifdef JOIN_INSTEAD_OF_SJOIN_ON_REMOTEJOIN
}
#endif
if (MyClient(sptr))
{
/*
** Make a (temporal) creationtime, if someone joins
** during a net.reconnect : between remote join and
** the mode with TS. --Run
*/
if (chptr->creationtime == 0)
{
chptr->creationtime = TStime();
sendto_serv_butone_token(cptr, me.name,
MSG_MODE, TOK_MODE, "%s + %lu",
chptr->chname, chptr->creationtime);
}
del_invite(sptr, chptr);
if (flags && !(flags & CHFL_DEOPPED))
{
#ifndef PREFIX_AQ
if ((flags & CHFL_CHANOWNER) || (flags & CHFL_CHANPROT))
{
/* +ao / +qo for when PREFIX_AQ is off */
sendto_serv_butone_token_opt(cptr, OPT_NOT_SJ3,
me.name,
MSG_MODE, TOK_MODE, "%s +o%c %s %s %lu",
chptr->chname, chfl_to_chanmode(flags), sptr->name, sptr->name,
chptr->creationtime);
} else {
#endif
/* +v/+h/+o (and +a/+q if PREFIX_AQ is on) */
sendto_serv_butone_token_opt(cptr, OPT_NOT_SJ3,
me.name,
MSG_MODE, TOK_MODE, "%s +%c %s %lu",
chptr->chname, chfl_to_chanmode(flags), sptr->name,
chptr->creationtime);
#ifndef PREFIX_AQ
}
#endif
}
if (chptr->topic)
{
sendto_one(sptr, rpl_str(RPL_TOPIC),
me.name, sptr->name, chptr->chname, chptr->topic);
sendto_one(sptr,
rpl_str(RPL_TOPICWHOTIME), me.name,
sptr->name, chptr->chname, chptr->topic_nick,
chptr->topic_time);
}
if (chptr->users == 1 && (MODES_ON_JOIN
#ifdef EXTCMODE
|| iConf.modes_on_join.extmodes)
#endif
)
{
#ifdef EXTCMODE
int i;
chptr->mode.extmode = iConf.modes_on_join.extmodes;
/* Param fun */
for (i = 0; i <= Channelmode_highest; i++)
{
if (!Channelmode_Table[i].flag || !Channelmode_Table[i].paracount)
continue;
if (chptr->mode.extmode & Channelmode_Table[i].mode)
{
CmodeParam *p;
p = Channelmode_Table[i].put_param(NULL, iConf.modes_on_join.extparams[i]);
AddListItem(p, chptr->mode.extmodeparam);
}
}
#endif
chptr->mode.mode = MODES_ON_JOIN;
#ifdef NEWCHFLOODPROT
if (iConf.modes_on_join.floodprot.per)
{
chptr->mode.floodprot = MyMalloc(sizeof(ChanFloodProt));
memcpy(chptr->mode.floodprot, &iConf.modes_on_join.floodprot, sizeof(ChanFloodProt));
}
#else
chptr->mode.kmode = iConf.modes_on_join.kmode;
chptr->mode.per = iConf.modes_on_join.per;
chptr->mode.msgs = iConf.modes_on_join.msgs;
#endif
*modebuf = *parabuf = 0;
channel_modes(sptr, modebuf, parabuf, chptr);
/* This should probably be in the SJOIN stuff */
sendto_serv_butone_token(&me, me.name, MSG_MODE, TOK_MODE,
"%s %s %s %lu", chptr->chname, modebuf, parabuf,
chptr->creationtime);
sendto_one(sptr, ":%s MODE %s %s %s", me.name, chptr->chname, modebuf, parabuf);
}
parv[0] = sptr->name;
parv[1] = chptr->chname;
do_cmd(cptr, sptr, "NAMES", 2, parv);
RunHook4(HOOKTYPE_LOCAL_JOIN, cptr, sptr,chptr,parv);
} else {
RunHook4(HOOKTYPE_REMOTE_JOIN, cptr, sptr, chptr, parv); /* (rarely used) */
}
#ifdef NEWCHFLOODPROT
/* I'll explain this only once:
* 1. if channel is +f
* 2. local client OR synced server
* 3. then, increase floodcounter
* 4. if we reached the limit AND only if source was a local client.. do the action (+i).
* Nr 4 is done because otherwise you would have a noticeflood with 'joinflood detected'
* from all servers.
*/
if (chptr->mode.floodprot && (MyClient(sptr) || sptr->srvptr->serv->flags.synced) &&
!IsULine(sptr) && do_chanflood(chptr->mode.floodprot, FLD_JOIN) && MyClient(sptr))
{
do_chanflood_action(chptr, FLD_JOIN, "join");
}
#endif
}
/*
* 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;
}
