* note: it is guaranteed that parv[0]..parv[parc-1] are all
* non-NULL pointers.
*/
-#if 0
-/*
- * No need to include handlers.h here the signatures must match
- * and we don't need to force a rebuild of all the handlers everytime
- * we add a new one to the list. --Bleep
- */
-#include "handlers.h"
-#endif /* 0 */
+#include "config.h"
+
#include "IPcheck.h"
#include "client.h"
#include "hash.h"
#include "ircd.h"
#include "ircd_chattr.h"
+#include "ircd_features.h"
+#include "ircd_log.h"
#include "ircd_reply.h"
#include "ircd_string.h"
#include "msg.h"
#include "s_misc.h"
#include "s_user.h"
#include "send.h"
+#include "sys.h"
-#include <assert.h>
+/* #include <assert.h> -- Now using assert in ircd_log.h */
#include <stdlib.h>
#include <string.h>
+ /*
+* 'do_nick_name' ensures that the given parameter (nick) is really a proper
+* string for a nickname (note, the 'nick' may be modified in the process...)
+*
+* RETURNS the length of the final NICKNAME (0, if nickname is invalid)
+*
+* Nickname characters are in range 'A'..'}', '_', '-', '0'..'9'
+* anything outside the above set will terminate nickname.
+* In addition, the first character cannot be '-' or a Digit.
+*
+* Note:
+* The '~'-character should be allowed, but a change should be global,
+* some confusion would result if only few servers allowed it...
+*/
+static int do_nick_name(char* nick)
+{
+ char* ch = nick;
+ char* end = ch + NICKLEN;
+ assert(0 != ch);
+
+ /* first character in [0..9-] */
+ if (*ch == '-' || IsDigit(*ch))
+ return 0;
+ for ( ; (ch < end) && *ch; ++ch)
+ if (!IsNickChar(*ch))
+ break;
+
+ *ch = '\0';
+
+ return (ch - nick);
+}
+
/*
* m_nick - message handler for local clients
* parv[0] = sender prefix
char nick[NICKLEN + 2];
char* arg;
char* s;
- const char* client_name;
assert(0 != cptr);
assert(cptr == sptr);
- /*
- * parv[0] will be empty for clients connecting for the first time
- */
- client_name = (*sptr->name) ? sptr->name : "*";
+ if (IsServerPort(cptr))
+ return exit_client(cptr, cptr, &me, "Use a different port");
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) > NICKLEN)
- arg[NICKLEN] = '\0';
+ 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 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() returns a null name then reject it.
*/
if (0 == do_nick_name(nick)) {
send_reply(sptr, ERR_ERRONEUSNICKNAME, arg);
* is concerned (user is changing the case of his/her
* nickname or somesuch)
*/
- if (0 != strcmp(acptr->name, nick)) {
+ if (0 != strcmp(cli_name(acptr), nick)) {
/*
* Allows change of case in his/her nick
*/
* "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;
+ ServerStats->is_ref++;
+ IPcheck_connect_fail(acptr, 0);
exit_client(cptr, acptr, &me, "Overridden by other sign on");
return set_nick_name(cptr, sptr, nick, parc, parv);
}
* parv[4] = username
* parv[5] = hostname
* parv[6] = umode (optional)
- * parv[parc-4] = %<lastmod>:<mask> <- Only if matching GLINE
* parv[parc-3] = IP# <- Only Protocol >= 10
* parv[parc-2] = YXX, numeric nick <- Only Protocol >= 10
* parv[parc-1] = info
*/
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;
+ 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) {
+ 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 (!IsBurstOrBurstAck(sptr)) {
- if (IsServer(sptr)) {
- lastnick = atoi(parv[3]);
- if (lastnick > OLDEST_TS)
- sptr->serv->lag = TStime() - lastnick;
- }
- else {
- lastnick = atoi(parv[2]);
- if (lastnick > OLDEST_TS)
- sptr->user->server->serv->lag = TStime() - lastnick;
- }
+ 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
* 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])) {
+ 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], me.name, parv[1],
- nick, cptr->name);
- if (!IsServer(sptr)) {
+ 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], me.name, cptr->name, parv[0],
- sptr->user ? sptr->username : "",
- sptr->user ? sptr->user->server->name :
- cptr->name);
+ 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
- */
-
- acptr = FindClient(nick);
- if (!acptr) {
- /*
- * No collisions, all clear...
- */
+ /* Check against nick name collisions. */
+ if ((acptr = FindClient(nick)) == NULL)
+ /* No collisions, all clear... */
return set_nick_name(cptr, sptr, nick, parc, parv);
- }
- assert(0 != acptr);
-
- if (IsServer(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_opmask_butone(0, SNO_OLDSNO, "Nick collision on %C(%C <- %C)", sptr,
- acptr->from, cptr);
- ++ServerStats->is_kill;
-
- sendcmdto_one(&me, CMD_KILL, cptr, "%C :%s (%s <- %s)", sptr, me.name,
- acptr->from->name, cptr->name);
-
- sptr->flags |= FLAGS_KILLED;
- /*
- * if sptr is a server it is exited here, nothing else to do
- */
- return exit_client(cptr, sptr, &me, "Nick/Server collision");
- }
/*
* If acptr == sptr, then we have a client doing a nick
* 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
- */
+ 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
- /*
- * 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 */
+ /* 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).
* 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;
+ if (IsUnknown(acptr) && MyConnect(acptr))
+ {
+ ServerStats->is_ref++;
+ IPcheck_connect_fail(acptr, 0);
exit_client(cptr, acptr, &me, "Overridden by other sign on");
return set_nick_name(cptr, sptr, nick, parc, parv);
}
* --Run
*
*/
- if (IsServer(sptr)) {
+ 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
*/
- differ = (acptr->ip.s_addr != htonl(base64toint(parv[parc - 3]))) ||
- (0 != ircd_strcmp(acptr->user->username, parv[4]));
+ 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, acptr->from,
- acptr->lastnick, cptr, lastnick,
+ "%C %Tu (%s user@host))", acptr, cli_from(acptr),
+ cli_lastnick(acptr), cptr, lastnick,
differ ? "Different" : "Same");
}
- else {
+ else
+ {
/*
* A NICK change has collided (e.g. message type ":old NICK new").
*
* compare IP address and username
*/
- differ = (acptr->ip.s_addr != sptr->ip.s_addr) ||
- (0 != ircd_strcmp(acptr->user->username, sptr->user->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, acptr->from,
- acptr->lastnick, cptr, lastnick);
+ "%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
*
* This exits the client sending the NICK message
*/
- if (acptr->from != cptr) {
- if ((differ && lastnick >= acptr->lastnick) || (!differ && lastnick <= acptr->lastnick)) {
- if (!IsServer(sptr)) {
- ++ServerStats->is_kill;
- sendcmdto_serv_butone(&me, CMD_KILL, sptr, "%C :%s (%s <- %s (Nick "
- "collision))", sptr, me.name, acptr->from->name,
- cptr->name);
- assert(!MyConnect(sptr));
-#if 0
- /*
- * XXX - impossible
- */
- if (MyConnect(sptr))
- sendto_one(cptr, "%s " TOK_KILL " %s%s :%s (Ghost 2)", /* XXX DEAD */
- NumServ(&me), NumNick(sptr), me.name);
-#endif
- sptr->flags |= FLAGS_KILLED;
- exit_client(cptr, sptr, &me, "Nick collision (you're a ghost)");
- /*
- * we have killed sptr off, zero out it's pointer so if it's used
- * again we'll know about it --Bleep
- */
- sptr = 0;
- }
- if (lastnick != acptr->lastnick)
- return 0; /* Ignore the NICK */
- }
- send_reply(acptr, ERR_NICKCOLLISION, nick);
- }
-
- ++ServerStats->is_kill;
- acptr->flags |= FLAGS_KILLED;
- /*
- * This exits the client we had before getting the NICK message
- */
- if (differ) {
- sendcmdto_serv_butone(&me, CMD_KILL, acptr, "%C :%s (%s <- %s (older "
- "nick overruled))", acptr, me.name,
- acptr->from->name, cptr->name);
- if (MyConnect(acptr))
- sendcmdto_one(acptr, CMD_QUIT, cptr, ":Local kill by %s (Ghost)",
- me.name);
- exit_client(cptr, acptr, &me, "Nick collision (older nick overruled)");
- }
- else {
- sendcmdto_serv_butone(&me, CMD_KILL, acptr, "%C :%s (%s <- %s (nick "
- "collision from same user@host))", acptr, me.name,
- acptr->from->name, cptr->name);
- if (MyConnect(acptr))
- sendcmdto_one(acptr, CMD_QUIT, cptr, ":Local kill by %s (Ghost: ",
- "switched servers too fast)", me.name);
- exit_client(cptr, acptr, &me, "Nick collision (You collided yourself)");
- }
- if (lastnick == acptr->lastnick)
- return 0;
-
- assert(0 != sptr);
- return set_nick_name(cptr, sptr, nick, parc, parv);
-}
-
-#if 0
-/*
- * m_nick
- *
- * 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 m_nick(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
-{
- struct Client* acptr;
- char nick[NICKLEN + 2];
- char* s;
- time_t lastnick = 0;
- int differ = 1;
-
- if (parc < 2) {
- sendto_one(sptr, err_str(ERR_NONICKNAMEGIVEN), me.name, parv[0]); /* XXX DEAD */
- return 0;
- }
- else if ((IsServer(sptr) && parc < 8) || (IsServer(cptr) && parc < 3))
- {
- need_more_params(sptr, "NICK");
- sendto_ops("bad NICK param count for %s from %s", parv[1], cptr->name); /* XXX DEAD */
- return 0;
- }
- if (MyConnect(sptr) && (s = strchr(parv[1], '~')))
- *s = '\0';
- ircd_strncpy(nick, parv[1], NICKLEN);
- nick[NICKLEN] = '\0';
- if (IsServer(cptr)) {
- if (IsServer(sptr)) {
- lastnick = atoi(parv[3]);
- if (lastnick > OLDEST_TS)
- sptr->serv->lag = TStime() - lastnick;
- } else {
- lastnick = atoi(parv[2]);
- if (lastnick > OLDEST_TS)
- sptr->user->server->serv->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) == 0 || (IsServer(cptr) && strcmp(nick, parv[1])))
+ if ((differ && lastnick >= cli_lastnick(acptr)) ||
+ (!differ && lastnick <= cli_lastnick(acptr)))
{
- sendto_one(sptr, err_str(ERR_ERRONEUSNICKNAME), me.name, parv[0], parv[1]); /* XXX DEAD */
-
- if (IsServer(cptr))
+ ServerStats->is_kill++;
+ if (!IsServer(sptr))
{
- ServerStats->is_kill++;
- sendto_ops("Bad Nick: %s From: %s %s", /* XXX DEAD */
- parv[1], parv[0], cptr->name);
- sendto_one(cptr, "%s " TOK_KILL " %s :%s (%s <- %s[%s])", /* XXX DEAD */
- NumServ(&me), IsServer(sptr) ? parv[parc - 2] : parv[0], me.name,
- parv[1], nick, cptr->name);
- if (!IsServer(sptr)) /* bad nick _change_ */
- {
- sendto_highprot_butone(&me, 10, "%s " TOK_KILL " %s :%s (%s <- %s!%s@%s)", /* XXX DEAD */
- NumServ(&me), parv[0], me.name, cptr->name,
- parv[0], sptr->user ? sptr->username : "",
- sptr->user ? sptr->user->server->name : cptr->name);
- }
+ /* 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);
}
- 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 ((!IsServer(cptr)) && isNickJuped(nick))
- {
- sendto_one(sptr, err_str(ERR_NICKNAMEINUSE), me.name, /* XXX DEAD */
- /* parv[0] is empty when connecting */
- EmptyString(parv[0]) ? "*" : parv[0], nick);
- return 0; /* NICK message ignored */
- }
-
- /*
- * 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
- */
-
- acptr = FindServer(nick);
-
- if (acptr) { /* There is a nick collision with a server */
- if (MyConnect(sptr))
+ else
{
- /* Local user trying to use a nick thats a server
- * Return an error message and ignore the command
+ /* 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.
*/
- sendto_one(sptr, err_str(ERR_NICKNAMEINUSE), me.name, /* XXX DEAD */
- EmptyString(parv[0]) ? "*" : parv[0], nick);
- return 0; /* NICK message ignored */
+ sendcmdto_one(&me, CMD_KILL, cptr, "%s :%s (%s)",
+ parv[parc - 2], cli_name(&me), type);
}
-
- /*
- * 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
+ /* If the timestamps differ and we just killed sptr, we don't need to kill
+ * acptr as well.
*/
- sendto_ops("Nick collision on %s(%s <- %s)", /* XXX DEAD */
- sptr->name, acptr->from->name, cptr->name);
- ServerStats->is_kill++;
- sendto_one(cptr, "%s " TOK_KILL " %s%s :%s (%s <- %s)", /* XXX DEAD */
- NumServ(&me), NumNick(sptr), me.name, acptr->from->name,
- cptr->name);
- sptr->flags |= FLAGS_KILLED;
- return exit_client(cptr, sptr, &me, "Nick/Server collision");
- }
-
- acptr = FindClient(nick);
-
- /* No collisions? Set the nick name and we're done */
- if (!acptr)
- 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(acptr->name, nick) != 0)
- /*
- * Allows change of case in his/her nick
- */
- return set_nick_name(cptr, sptr, nick, parc, parv);
- 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 */
+ 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);
/*
- * 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) && MyConnect(acptr))
- {
- ++ServerStats->is_ref;
- 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
- */
- if (!IsServer(cptr))
- {
- /*
- * NICK is coming from local client connection. Just
- * send error reply and ignore the command.
- */
- sendto_one(sptr, err_str(ERR_NICKNAMEINUSE), me.name, /* XXX DEAD */
- /* parv[0] is empty when connecting */
- EmptyString(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 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)
- */
- differ = (acptr->ip.s_addr != htonl(base64toint(parv[parc - 3]))) ||
- (0 != ircd_strcmp(acptr->user->username, parv[4]));
- sendto_ops("Nick collision on %s (%s " TIME_T_FMT " <- %s " TIME_T_FMT /* XXX DEAD */
- " (%s user@host))", acptr->name, acptr->from->name, acptr->lastnick,
- cptr->name, lastnick, differ ? "Different" : "Same");
- }
- else
- {
- /*
- * A NICK change has collided (e.g. message type ":old NICK new").
- */
- lastnick = atoi(parv[2]);
- differ = (acptr->ip.s_addr != sptr->ip.s_addr) ||
- (0 != ircd_strcmp(acptr->user->username, sptr->user->username));
- sendto_ops("Nick change collision from %s to %s (%s " TIME_T_FMT " <- %s " /* XXX DEAD */
- TIME_T_FMT ")", sptr->name, acptr->name, acptr->from->name,
- acptr->lastnick, cptr->name, 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 we had before getting the NICK message
*/
- if (acptr->from != cptr)
- {
- if ((differ && lastnick >= acptr->lastnick) ||
- (!differ && lastnick <= acptr->lastnick))
- {
- if (!IsServer(sptr))
- {
- ServerStats->is_kill++;
- sendto_highprot_butone(cptr, 10, /* Kill old from outgoing servers */ /* XXX DEAD */
- "%s " TOK_KILL " %s%s :%s (%s <- %s (Nick collision))",
- NumServ(&me), NumNick(sptr), me.name, acptr->from->name,
- cptr->name);
- if (MyConnect(sptr) && IsServer(cptr) && Protocol(cptr) > 9)
- sendto_one(cptr, "%s " TOK_KILL " %s%s :%s (Ghost2)", /* XXX DEAD */
- NumServ(&me), NumNick(sptr), me.name);
- sptr->flags |= FLAGS_KILLED;
- exit_client(cptr, sptr, &me, "Nick collision (you're a ghost)");
- }
- if (lastnick != acptr->lastnick)
- return 0; /* Ignore the NICK */
- }
- sendto_one(acptr, err_str(ERR_NICKCOLLISION), me.name, acptr->name, nick); /* XXX DEAD */
- }
- ServerStats->is_kill++;
- acptr->flags |= FLAGS_KILLED;
- if (differ)
- {
- sendto_highprot_butone(cptr, 10, /* Kill our old from outgoing servers */ /* XXX DEAD */
- "%s " TOK_KILL " %s%s :%s (%s <- %s (older nick overruled))",
- NumServ(&me), NumNick(acptr), me.name, acptr->from->name,
- cptr->name);
- if (MyConnect(acptr) && IsServer(cptr) && Protocol(cptr) > 9)
- sendto_one(cptr, "%s%s " TOK_QUIT " :Local kill by %s (Ghost)", /* XXX DEAD */
- NumNick(acptr), me.name);
- exit_client(cptr, acptr, &me, "Nick collision (older nick overruled)");
- }
- else
- {
- sendto_highprot_butone(cptr, 10, /* Kill our old from outgoing servers */ /* XXX DEAD */
- "%s " TOK_KILL " %s%s :%s (%s <- %s (nick collision from same user@host))",
- NumServ(&me), NumNick(acptr), me.name, acptr->from->name,
- cptr->name);
- if (MyConnect(acptr) && IsServer(cptr) && Protocol(cptr) > 9)
- sendto_one(cptr, /* XXX DEAD */
- "%s%s " TOK_QUIT " :Local kill by %s (Ghost: switched servers too fast)",
- NumNick(acptr), me.name);
- exit_client(cptr, acptr, &me, "Nick collision (You collided yourself)");
- }
- if (lastnick == acptr->lastnick)
+ 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);
}
-
-#endif /* 0 */
projects / ircu2.10.12-pk.git / blobdiff