/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2005 by Alexander Barton (alex@barton.de)
*
- * Dieses Programm ist freie Software. Sie koennen es unter den Bedingungen
- * der GNU General Public License (GPL), wie von der Free Software Foundation
- * herausgegeben, weitergeben und/oder modifizieren, entweder unter Version 2
- * der Lizenz oder (wenn Sie es wuenschen) jeder spaeteren Version.
- * Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
- * der an comBase beteiligten Autoren finden Sie in der Datei AUTHORS.
- *
- * $Id: client.c,v 1.6 2001/12/26 03:19:16 alex Exp $
- *
- * client.c: Management aller Clients
- *
- * Der Begriff "Client" ist in diesem Fall evtl. etwas verwirrend: Clients sind
- * alle Verbindungen, die im gesamten(!) IRC-Netzwerk bekannt sind. Das sind IRC-
- * Clients (User), andere Server und IRC-Services.
- * Ueber welchen IRC-Server die Verbindung nun tatsaechlich in das Netzwerk her-
- * gestellt wurde, muss der jeweiligen Struktur entnommen werden. Ist es dieser
- * Server gewesen, so existiert eine entsprechende CONNECTION-Struktur.
- *
- * $Log: client.c,v $
- * Revision 1.6 2001/12/26 03:19:16 alex
- * - neue Funktion Client_Name().
- *
- * Revision 1.5 2001/12/25 22:04:26 alex
- * - Aenderungen an den Debug- und Logging-Funktionen.
- *
- * Revision 1.4 2001/12/25 19:21:26 alex
- * - Client-Typ ("Status") besser unterteilt, My_Clients ist zudem nun global.
- *
- * Revision 1.3 2001/12/24 01:31:14 alex
- * - einige assert()'s eingestraeut.
- *
- * Revision 1.2 2001/12/23 22:04:37 alex
- * - einige neue Funktionen,
- * - CLIENT-Struktur erweitert.
- *
- * Revision 1.1 2001/12/14 08:13:43 alex
- * - neues Modul begonnen :-)
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * Please read the file COPYING, README and AUTHORS for more information.
*
+ * Client management.
*/
-#include <portab.h>
-#include "global.h"
+#define __client_c__
-#include <imp.h>
+
+#include "portab.h"
+
+static char UNUSED id[] = "$Id: client.c,v 1.90 2006/03/24 23:25:38 fw Exp $";
+
+#include "imp.h"
#include <assert.h>
#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
+#include <strings.h>
+#include <netdb.h>
-#include "channel.h"
+#include "defines.h"
#include "conn.h"
+
+#include "exp.h"
+#include "client.h"
+
+#include <imp.h>
+#include "ngircd.h"
+#include "channel.h"
+#include "resolve.h"
+#include "conf.h"
+#include "hash.h"
+#include "irc-write.h"
#include "log.h"
+#include "messages.h"
#include <exp.h>
-#include "client.h"
-LOCAL CLIENT *New_Client_Struct( VOID );
+#define GETID_LEN (CLIENT_NICK_LEN-1) + 1 + (CLIENT_USER_LEN-1) + 1 + (CLIENT_HOST_LEN-1) + 1
+
+
+static CLIENT *This_Server, *My_Clients;
+static char GetID_Buffer[GETID_LEN];
+
+static WHOWAS My_Whowas[MAX_WHOWAS];
+static int Last_Whowas = -1;
+
+
+static long Count PARAMS(( CLIENT_TYPE Type ));
+static long MyCount PARAMS(( CLIENT_TYPE Type ));
+
+static CLIENT *New_Client_Struct PARAMS(( void ));
+static void Generate_MyToken PARAMS(( CLIENT *Client ));
+static void Adjust_Counters PARAMS(( CLIENT *Client ));
+
+static CLIENT *Init_New_Client PARAMS((CONN_ID Idx, CLIENT *Introducer,
+ CLIENT *TopServer, int Type, char *ID, char *User, char *Hostname,
+ char *Info, int Hops, int Token, char *Modes, bool Idented));
+
+#ifndef Client_DestroyNow
+GLOBAL void Client_DestroyNow PARAMS((CLIENT *Client ));
+#endif
+
+long Max_Users = 0, My_Max_Users = 0;
-GLOBAL VOID Client_Init( VOID )
+
+GLOBAL void
+Client_Init( void )
{
+ struct hostent *h;
+
This_Server = New_Client_Struct( );
if( ! This_Server )
{
Log( LOG_EMERG, "Can't allocate client structure for server! Going down." );
+ Log( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME );
exit( 1 );
}
This_Server->type = CLIENT_SERVER;
This_Server->conn_id = NONE;
This_Server->introducer = This_Server;
+ This_Server->mytoken = 1;
+ This_Server->hops = 0;
+
gethostname( This_Server->host, CLIENT_HOST_LEN );
- strcpy( This_Server->nick, This_Server->host );
+ h = gethostbyname( This_Server->host );
+ if( h ) strlcpy( This_Server->host, h->h_name, sizeof( This_Server->host ));
+
+ Client_SetID( This_Server, Conf_ServerName );
+ Client_SetInfo( This_Server, Conf_ServerInfo );
My_Clients = This_Server;
+
+ memset( &My_Whowas, 0, sizeof( My_Whowas ));
} /* Client_Init */
-GLOBAL VOID Client_Exit( VOID )
+GLOBAL void
+Client_Exit( void )
{
CLIENT *c, *next;
- INT cnt;
+ int cnt;
- Client_Destroy( This_Server );
+ if( NGIRCd_SignalRestart ) Client_Destroy( This_Server, "Server going down (restarting).", NULL, false );
+ else Client_Destroy( This_Server, "Server going down.", NULL, false );
cnt = 0;
c = My_Clients;
while( c )
{
cnt++;
- next = c->next;
+ next = (CLIENT *)c->next;
free( c );
c = next;
}
if( cnt ) Log( LOG_INFO, "Freed %d client structure%s.", cnt, cnt == 1 ? "" : "s" );
-} /* Client Exit */
+} /* Client_Exit */
-GLOBAL CLIENT *Client_New_Local( CONN_ID Idx, CHAR *Hostname )
+GLOBAL CLIENT *
+Client_ThisServer( void )
+{
+ return This_Server;
+} /* Client_ThisServer */
+
+
+/**
+ * Initialize new local client; wrapper function for Init_New_Client().
+ * @return New CLIENT structure.
+ */
+GLOBAL CLIENT *
+Client_NewLocal(CONN_ID Idx, char *Hostname, int Type, bool Idented)
+{
+ return Init_New_Client(Idx, This_Server, NULL, Type, NULL, NULL,
+ Hostname, NULL, 0, 0, NULL, Idented);
+} /* Client_NewLocal */
+
+
+/**
+ * Initialize new remote server; wrapper function for Init_New_Client().
+ * @return New CLIENT structure.
+ */
+GLOBAL CLIENT *
+Client_NewRemoteServer(CLIENT *Introducer, char *Hostname, CLIENT *TopServer,
+ int Hops, int Token, char *Info, bool Idented)
+{
+ return Init_New_Client(NONE, Introducer, TopServer, CLIENT_SERVER,
+ Hostname, NULL, Hostname, Info, Hops, Token, NULL, Idented);
+} /* Client_NewRemoteServer */
+
+
+/**
+ * Initialize new remote client; wrapper function for Init_New_Client().
+ * @return New CLIENT structure.
+ */
+GLOBAL CLIENT *
+Client_NewRemoteUser(CLIENT *Introducer, char *Nick, int Hops, char *User,
+ char *Hostname, int Token, char *Modes, char *Info, bool Idented)
+{
+ return Init_New_Client(NONE, Introducer, NULL, CLIENT_USER, Nick,
+ User, Hostname, Info, Hops, Token, Modes, Idented);
+} /* Client_NewRemoteUser */
+
+
+/**
+ * Initialize new client and set up the given parameters like client type,
+ * user name, host name, introducing server etc. ...
+ * @return New CLIENT structure.
+ */
+static CLIENT *
+Init_New_Client(CONN_ID Idx, CLIENT *Introducer, CLIENT *TopServer,
+ int Type, char *ID, char *User, char *Hostname, char *Info, int Hops,
+ int Token, char *Modes, bool Idented)
{
- /* Neuen lokalen Client erzeugen. */
-
CLIENT *client;
- assert( Idx >= 0 );
+ assert( Idx >= NONE );
+ assert( Introducer != NULL );
assert( Hostname != NULL );
-
+
client = New_Client_Struct( );
if( ! client ) return NULL;
- /* Initgialisieren */
+ /* Initialisieren */
+ client->starttime = time(NULL);
client->conn_id = Idx;
- client->introducer = This_Server;
- strncpy( client->host, Hostname, CLIENT_HOST_LEN );
- client->host[CLIENT_HOST_LEN] = '\0';
+ client->introducer = Introducer;
+ client->topserver = TopServer;
+ client->type = Type;
+ if( ID ) Client_SetID( client, ID );
+ if( User ) Client_SetUser( client, User, Idented );
+ if( Hostname ) Client_SetHostname( client, Hostname );
+ if( Info ) Client_SetInfo( client, Info );
+ client->hops = Hops;
+ client->token = Token;
+ if( Modes ) Client_SetModes( client, Modes );
+ if( Type == CLIENT_SERVER ) Generate_MyToken( client );
+
+ /* ist der User away? */
+ if( strchr( client->modes, 'a' )) strlcpy( client->away, DEFAULT_AWAY_MSG, sizeof( client->away ));
/* Verketten */
- client->next = My_Clients;
+ client->next = (POINTER *)My_Clients;
My_Clients = client;
-
+
+ /* Adjust counters */
+ Adjust_Counters( client );
+
return client;
-} /* Client_New_Local */
+} /* Init_New_Client */
-GLOBAL VOID Client_Destroy( CLIENT *Client )
+GLOBAL void
+Client_Destroy( CLIENT *Client, char *LogMsg, char *FwdMsg, bool SendQuit )
{
/* Client entfernen. */
CLIENT *last, *c;
+ char msg[LINE_LEN], *txt;
assert( Client != NULL );
-
+
+ if( LogMsg ) txt = LogMsg;
+ else txt = FwdMsg;
+ if( ! txt ) txt = "Reason unknown.";
+
+ /* Netz-Split-Nachricht vorbereiten (noch nicht optimal) */
+ if( Client->type == CLIENT_SERVER ) {
+ strlcpy(msg, This_Server->id, sizeof (msg));
+ strlcat(msg, " ", sizeof (msg));
+ strlcat(msg, Client->id, sizeof (msg));
+ }
+
last = NULL;
c = My_Clients;
while( c )
{
+ if(( Client->type == CLIENT_SERVER ) && ( c->introducer == Client ) && ( c != Client ))
+ {
+ /* der Client, der geloescht wird ist ein Server. Der Client, den wir gerade
+ * pruefen, ist ein Child von diesem und muss daher auch entfernt werden */
+ Client_Destroy( c, NULL, msg, false );
+ last = NULL;
+ c = My_Clients;
+ continue;
+ }
if( c == Client )
{
+ /* Wir haben den Client gefunden: entfernen */
if( last ) last->next = c->next;
- else My_Clients = c->next;
+ else My_Clients = (CLIENT *)c->next;
+
+ if( c->type == CLIENT_USER )
+ {
+ if( c->conn_id != NONE )
+ {
+ /* Ein lokaler User */
+ Log( LOG_NOTICE, "User \"%s\" unregistered (connection %d): %s", Client_Mask( c ), c->conn_id, txt );
+
+ if( SendQuit )
+ {
+ /* Alle andere Server informieren! */
+ if( FwdMsg ) IRC_WriteStrServersPrefix( NULL, c, "QUIT :%s", FwdMsg );
+ else IRC_WriteStrServersPrefix( NULL, c, "QUIT :" );
+ }
+ }
+ else
+ {
+ /* Remote User */
+ Log( LOG_DEBUG, "User \"%s\" unregistered: %s", Client_Mask( c ), txt );
+
+ if( SendQuit )
+ {
+ /* Andere Server informieren, ausser denen, die "in
+ * Richtung dem liegen", auf dem der User registriert
+ * ist. Von denen haben wir das QUIT ja wohl bekommen. */
+ if( FwdMsg ) IRC_WriteStrServersPrefix( Client_NextHop( c ), c, "QUIT :%s", FwdMsg );
+ else IRC_WriteStrServersPrefix( Client_NextHop( c ), c, "QUIT :" );
+ }
+ }
+
+ /* Unregister client from channels */
+ Channel_Quit( c, FwdMsg ? FwdMsg : c->id );
+
+ /* Register client in My_Whowas structure */
+ Client_RegisterWhowas( c );
+ }
+ else if( c->type == CLIENT_SERVER )
+ {
+ if( c != This_Server )
+ {
+ if( c->conn_id != NONE ) Log( LOG_NOTICE|LOG_snotice, "Server \"%s\" unregistered (connection %d): %s", c->id, c->conn_id, txt );
+ else Log( LOG_NOTICE|LOG_snotice, "Server \"%s\" unregistered: %s", c->id, txt );
+ }
+
+ /* andere Server informieren */
+ if( ! NGIRCd_SignalQuit )
+ {
+ if( FwdMsg ) IRC_WriteStrServersPrefix( Client_NextHop( c ), c, "SQUIT %s :%s", c->id, FwdMsg );
+ else IRC_WriteStrServersPrefix( Client_NextHop( c ), c, "SQUIT %s :", c->id );
+ }
+ }
+ else
+ {
+ if( c->conn_id != NONE )
+ {
+ if( c->id[0] ) Log( LOG_NOTICE, "Client \"%s\" unregistered (connection %d): %s", c->id, c->conn_id, txt );
+ else Log( LOG_NOTICE, "Client unregistered (connection %d): %s", c->conn_id, txt );
+ } else {
+ Log(LOG_WARNING, "Unregistered unknown client \"%s\": %s",
+ c->id[0] ? c->id : "(No Nick)", txt );
+ }
+ }
+
free( c );
break;
}
last = c;
- c = c->next;
+ c = (CLIENT *)c->next;
}
} /* Client_Destroy */
-GLOBAL CLIENT *Client_GetFromConn( CONN_ID Idx )
+GLOBAL void
+Client_DestroyNow( CLIENT *Client )
+{
+ /* Destroy client structure immediately. This function is only
+ * intended for the connection layer to remove client structures
+ * of connections that can't be established! */
+
+ CLIENT *last, *c;
+
+ assert( Client != NULL );
+
+ last = NULL;
+ c = My_Clients;
+ while( c )
+ {
+ if( c == Client )
+ {
+ /* Wir haben den Client gefunden: entfernen */
+ if( last ) last->next = c->next;
+ else My_Clients = (CLIENT *)c->next;
+ free( c );
+ break;
+ }
+ last = c;
+ c = (CLIENT *)c->next;
+ }
+} /* Client_DestroyNow */
+
+
+GLOBAL void
+Client_SetHostname( CLIENT *Client, char *Hostname )
+{
+ /* Hostname eines Clients setzen */
+
+ assert( Client != NULL );
+ assert( Hostname != NULL );
+
+ strlcpy( Client->host, Hostname, sizeof( Client->host ));
+} /* Client_SetHostname */
+
+
+GLOBAL void
+Client_SetID( CLIENT *Client, char *ID )
+{
+ /* Hostname eines Clients setzen, Hash-Wert berechnen */
+
+ assert( Client != NULL );
+ assert( ID != NULL );
+
+ strlcpy( Client->id, ID, sizeof( Client->id ));
+
+ /* Hash */
+ Client->hash = Hash( Client->id );
+} /* Client_SetID */
+
+
+GLOBAL void
+Client_SetUser( CLIENT *Client, char *User, bool Idented )
+{
+ /* Username eines Clients setzen */
+
+ assert( Client != NULL );
+ assert( User != NULL );
+
+ if( Idented ) strlcpy( Client->user, User, sizeof( Client->user ));
+ else
+ {
+ Client->user[0] = '~';
+ strlcpy( Client->user + 1, User, sizeof( Client->user ) - 1 );
+ }
+} /* Client_SetUser */
+
+
+GLOBAL void
+Client_SetInfo( CLIENT *Client, char *Info )
+{
+ /* Hostname eines Clients setzen */
+
+ assert( Client != NULL );
+ assert( Info != NULL );
+
+ strlcpy( Client->info, Info, sizeof( Client->info ));
+} /* Client_SetInfo */
+
+
+GLOBAL void
+Client_SetModes( CLIENT *Client, char *Modes )
+{
+ /* Modes eines Clients setzen */
+
+ assert( Client != NULL );
+ assert( Modes != NULL );
+
+ strlcpy( Client->modes, Modes, sizeof( Client->modes ));
+} /* Client_SetModes */
+
+
+GLOBAL void
+Client_SetFlags( CLIENT *Client, char *Flags )
+{
+ /* Flags eines Clients setzen */
+
+ assert( Client != NULL );
+ assert( Flags != NULL );
+
+ strlcpy( Client->flags, Flags, sizeof( Client->flags ));
+} /* Client_SetFlags */
+
+
+GLOBAL void
+Client_SetPassword( CLIENT *Client, char *Pwd )
+{
+ /* Von einem Client geliefertes Passwort */
+
+ assert( Client != NULL );
+ assert( Pwd != NULL );
+
+ strlcpy( Client->pwd, Pwd, sizeof( Client->pwd ));
+} /* Client_SetPassword */
+
+
+GLOBAL void
+Client_SetAway( CLIENT *Client, char *Txt )
+{
+ /* Set AWAY reason of client */
+
+ assert( Client != NULL );
+ assert( Txt != NULL );
+
+ strlcpy( Client->away, Txt, sizeof( Client->away ));
+ Log( LOG_DEBUG, "User \"%s\" is away: %s", Client_Mask( Client ), Txt );
+} /* Client_SetAway */
+
+
+GLOBAL void
+Client_SetType( CLIENT *Client, int Type )
+{
+ assert( Client != NULL );
+ Client->type = Type;
+ if( Type == CLIENT_SERVER ) Generate_MyToken( Client );
+ Adjust_Counters( Client );
+} /* Client_SetType */
+
+
+GLOBAL void
+Client_SetHops( CLIENT *Client, int Hops )
+{
+ assert( Client != NULL );
+ Client->hops = Hops;
+} /* Client_SetHops */
+
+
+GLOBAL void
+Client_SetToken( CLIENT *Client, int Token )
+{
+ assert( Client != NULL );
+ Client->token = Token;
+} /* Client_SetToken */
+
+
+GLOBAL void
+Client_SetIntroducer( CLIENT *Client, CLIENT *Introducer )
+{
+ assert( Client != NULL );
+ assert( Introducer != NULL );
+ Client->introducer = Introducer;
+} /* Client_SetIntroducer */
+
+
+GLOBAL void
+Client_SetOperByMe( CLIENT *Client, bool OperByMe )
+{
+ assert( Client != NULL );
+ Client->oper_by_me = OperByMe;
+} /* Client_SetOperByMe */
+
+
+GLOBAL bool
+Client_ModeAdd( CLIENT *Client, char Mode )
+{
+ /* Set Mode.
+ * If Client already alread had Mode, return false.
+ * If the Mode was newly set, return true.
+ */
+
+ char x[2];
+
+ assert( Client != NULL );
+
+ x[0] = Mode; x[1] = '\0';
+ if( ! strchr( Client->modes, x[0] ))
+ {
+ /* Client hat den Mode noch nicht -> setzen */
+ strlcat( Client->modes, x, sizeof( Client->modes ));
+ return true;
+ }
+ else return false;
+} /* Client_ModeAdd */
+
+
+GLOBAL bool
+Client_ModeDel( CLIENT *Client, char Mode )
{
- /* Client-Struktur, die zur lokalen Verbindung Idx gehoert
- * liefern. Wird keine gefunden, so wird NULL geliefert. */
+ /* Delete Mode.
+ * If Mode was removed, return true.
+ * If Client did not have Mode, return false.
+ */
+
+ char x[2], *p;
+
+ assert( Client != NULL );
+
+ x[0] = Mode; x[1] = '\0';
+
+ p = strchr( Client->modes, x[0] );
+ if( ! p ) return false;
+
+ /* Client has Mode -> delete */
+ while( *p )
+ {
+ *p = *(p + 1);
+ p++;
+ }
+ return true;
+} /* Client_ModeDel */
+
+
+GLOBAL CLIENT *
+Client_GetFromConn( CONN_ID Idx )
+{
+ /* return Client-Structure that belongs to the local Connection Idx.
+ * If none is found, return NULL.
+ */
CLIENT *c;
while( c )
{
if( c->conn_id == Idx ) return c;
- c = c->next;
+ c = (CLIENT *)c->next;
}
return NULL;
} /* Client_GetFromConn */
-GLOBAL CHAR *Client_Name( CLIENT *Client )
+GLOBAL CLIENT *
+Client_Search( char *Nick )
+{
+ /* return Client-Structure that has the corresponding Nick.
+ * If none is found, return NULL.
+ */
+
+ char search_id[CLIENT_ID_LEN], *ptr;
+ CLIENT *c = NULL;
+ UINT32 search_hash;
+
+ assert( Nick != NULL );
+
+ /* copy Nick and truncate hostmask if necessary */
+ strlcpy( search_id, Nick, sizeof( search_id ));
+ ptr = strchr( search_id, '!' );
+ if( ptr ) *ptr = '\0';
+
+ search_hash = Hash( search_id );
+
+ c = My_Clients;
+ while( c )
+ {
+ if( c->hash == search_hash )
+ {
+ /* lt. Hash-Wert: Treffer! */
+ if( strcasecmp( c->id, search_id ) == 0 ) return c;
+ }
+ c = (CLIENT *)c->next;
+ }
+ return NULL;
+} /* Client_Search */
+
+
+GLOBAL CLIENT *
+Client_GetFromToken( CLIENT *Client, int Token )
+{
+ /* Client-Struktur, die den entsprechenden Introducer (=Client)
+ * und das gegebene Token hat, liefern. Wird keine gefunden,
+ * so wird NULL geliefert. */
+
+ CLIENT *c;
+
+ assert( Client != NULL );
+ assert( Token > 0 );
+
+ c = My_Clients;
+ while( c )
+ {
+ if(( c->type == CLIENT_SERVER ) && ( c->introducer == Client ) && ( c->token == Token )) return c;
+ c = (CLIENT *)c->next;
+ }
+ return NULL;
+} /* Client_GetFromToken */
+
+
+GLOBAL int
+Client_Type( CLIENT *Client )
+{
+ assert( Client != NULL );
+ return Client->type;
+} /* Client_Type */
+
+
+GLOBAL CONN_ID
+Client_Conn( CLIENT *Client )
{
assert( Client != NULL );
+ return Client->conn_id;
+} /* Client_Conn */
+
- if( Client->nick[0] ) return Client->nick;
+GLOBAL char *
+Client_ID( CLIENT *Client )
+{
+ assert( Client != NULL );
+
+#ifdef DEBUG
+ if( Client->type == CLIENT_USER ) assert( strlen( Client->id ) < CLIENT_NICK_LEN );
+#endif
+
+ if( Client->id[0] ) return Client->id;
else return "*";
-} /* Client_Name */
+} /* Client_ID */
+
+
+GLOBAL char *
+Client_Info( CLIENT *Client )
+{
+ assert( Client != NULL );
+ return Client->info;
+} /* Client_Info */
-LOCAL CLIENT *New_Client_Struct( VOID )
+GLOBAL char *
+Client_User( CLIENT *Client )
+{
+ assert( Client != NULL );
+ if( Client->user[0] ) return Client->user;
+ else return "~";
+} /* Client_User */
+
+
+GLOBAL char *
+Client_Hostname( CLIENT *Client )
+{
+ assert( Client != NULL );
+ return Client->host;
+} /* Client_Hostname */
+
+
+GLOBAL char *
+Client_Password( CLIENT *Client )
+{
+ assert( Client != NULL );
+ return Client->pwd;
+} /* Client_Password */
+
+
+GLOBAL char *
+Client_Modes( CLIENT *Client )
+{
+ assert( Client != NULL );
+ return Client->modes;
+} /* Client_Modes */
+
+
+GLOBAL char *
+Client_Flags( CLIENT *Client )
+{
+ assert( Client != NULL );
+ return Client->flags;
+} /* Client_Flags */
+
+
+GLOBAL bool
+Client_OperByMe( CLIENT *Client )
+{
+ assert( Client != NULL );
+ return Client->oper_by_me;
+} /* Client_OperByMe */
+
+
+GLOBAL int
+Client_Hops( CLIENT *Client )
+{
+ assert( Client != NULL );
+ return Client->hops;
+} /* Client_Hops */
+
+
+GLOBAL int
+Client_Token( CLIENT *Client )
+{
+ assert( Client != NULL );
+ return Client->token;
+} /* Client_Token */
+
+
+GLOBAL int
+Client_MyToken( CLIENT *Client )
+{
+ assert( Client != NULL );
+ return Client->mytoken;
+} /* Client_MyToken */
+
+
+GLOBAL CLIENT *
+Client_NextHop( CLIENT *Client )
+{
+ CLIENT *c;
+
+ assert( Client != NULL );
+
+ c = Client;
+ while( c->introducer && ( c->introducer != c ) && ( c->introducer != This_Server )) c = c->introducer;
+ return c;
+} /* Client_NextHop */
+
+
+GLOBAL char *
+Client_Mask( CLIENT *Client )
+{
+ /* Client-"ID" liefern, wie sie z.B. fuer
+ * Prefixe benoetigt wird. */
+
+ assert( Client != NULL );
+
+ if( Client->type == CLIENT_SERVER ) return Client->id;
+
+ snprintf( GetID_Buffer, GETID_LEN, "%s!%s@%s", Client->id, Client->user, Client->host );
+ return GetID_Buffer;
+} /* Client_Mask */
+
+
+GLOBAL CLIENT *
+Client_Introducer( CLIENT *Client )
+{
+ assert( Client != NULL );
+ return Client->introducer;
+} /* Client_Introducer */
+
+
+GLOBAL CLIENT *
+Client_TopServer( CLIENT *Client )
+{
+ assert( Client != NULL );
+ return Client->topserver;
+} /* Client_TopServer */
+
+
+GLOBAL bool
+Client_HasMode( CLIENT *Client, char Mode )
+{
+ assert( Client != NULL );
+ return strchr( Client->modes, Mode ) != NULL;
+} /* Client_HasMode */
+
+
+GLOBAL char *
+Client_Away( CLIENT *Client )
+{
+ /* AWAY-Text liefern */
+
+ assert( Client != NULL );
+ return Client->away;
+} /* Client_Away */
+
+
+GLOBAL bool
+Client_CheckNick( CLIENT *Client, char *Nick )
+{
+ /* Nick ueberpruefen */
+
+ assert( Client != NULL );
+ assert( Nick != NULL );
+
+ /* Nick ungueltig? */
+ if( ! Client_IsValidNick( Nick ))
+ {
+ IRC_WriteStrClient( Client, ERR_ERRONEUSNICKNAME_MSG, Client_ID( Client ), Nick );
+ return false;
+ }
+
+ /* Nick bereits vergeben? */
+ if( Client_Search( Nick ))
+ {
+ /* den Nick gibt es bereits */
+ IRC_WriteStrClient( Client, ERR_NICKNAMEINUSE_MSG, Client_ID( Client ), Nick );
+ return false;
+ }
+
+ return true;
+} /* Client_CheckNick */
+
+
+GLOBAL bool
+Client_CheckID( CLIENT *Client, char *ID )
+{
+ /* Nick ueberpruefen */
+
+ char str[COMMAND_LEN];
+ CLIENT *c;
+
+ assert( Client != NULL );
+ assert( Client->conn_id > NONE );
+ assert( ID != NULL );
+
+ /* Nick zu lang? */
+ if( strlen( ID ) > CLIENT_ID_LEN )
+ {
+ IRC_WriteStrClient( Client, ERR_ERRONEUSNICKNAME_MSG, Client_ID( Client ), ID );
+ return false;
+ }
+
+ /* ID bereits vergeben? */
+ c = My_Clients;
+ while( c )
+ {
+ if( strcasecmp( c->id, ID ) == 0 )
+ {
+ /* die Server-ID gibt es bereits */
+ snprintf( str, sizeof( str ), "ID \"%s\" already registered", ID );
+ if( Client->conn_id != c->conn_id ) Log( LOG_ERR, "%s (on connection %d)!", str, c->conn_id );
+ else Log( LOG_ERR, "%s (via network)!", str );
+ Conn_Close( Client->conn_id, str, str, true);
+ return false;
+ }
+ c = (CLIENT *)c->next;
+ }
+
+ return true;
+} /* Client_CheckID */
+
+
+GLOBAL CLIENT *
+Client_First( void )
+{
+ /* Ersten Client liefern. */
+
+ return My_Clients;
+} /* Client_First */
+
+
+GLOBAL CLIENT *
+Client_Next( CLIENT *c )
+{
+ /* Naechsten Client liefern. Existiert keiner,
+ * so wird NULL geliefert. */
+
+ assert( c != NULL );
+ return (CLIENT *)c->next;
+} /* Client_Next */
+
+
+GLOBAL long
+Client_UserCount( void )
+{
+ return Count( CLIENT_USER );
+} /* Client_UserCount */
+
+
+GLOBAL long
+Client_ServiceCount( void )
+{
+ return Count( CLIENT_SERVICE );;
+} /* Client_ServiceCount */
+
+
+GLOBAL long
+Client_ServerCount( void )
+{
+ return Count( CLIENT_SERVER );
+} /* Client_ServerCount */
+
+
+GLOBAL long
+Client_MyUserCount( void )
+{
+ return MyCount( CLIENT_USER );
+} /* Client_MyUserCount */
+
+
+GLOBAL long
+Client_MyServiceCount( void )
+{
+ return MyCount( CLIENT_SERVICE );
+} /* Client_MyServiceCount */
+
+
+GLOBAL long
+Client_MyServerCount( void )
+{
+ CLIENT *c;
+ long cnt;
+
+ cnt = 0;
+ c = My_Clients;
+ while( c )
+ {
+ if(( c->type == CLIENT_SERVER ) && ( c->hops == 1 )) cnt++;
+ c = (CLIENT *)c->next;
+ }
+ return cnt;
+} /* Client_MyServerCount */
+
+
+GLOBAL long
+Client_OperCount( void )
+{
+ CLIENT *c;
+ long cnt;
+
+ cnt = 0;
+ c = My_Clients;
+ while( c )
+ {
+ if( c && ( c->type == CLIENT_USER ) && ( strchr( c->modes, 'o' ))) cnt++;
+ c = (CLIENT *)c->next;
+ }
+ return cnt;
+} /* Client_OperCount */
+
+
+GLOBAL long
+Client_UnknownCount( void )
+{
+ CLIENT *c;
+ long cnt;
+
+ cnt = 0;
+ c = My_Clients;
+ while( c )
+ {
+ if( c && ( c->type != CLIENT_USER ) && ( c->type != CLIENT_SERVICE ) && ( c->type != CLIENT_SERVER )) cnt++;
+ c = (CLIENT *)c->next;
+ }
+ return cnt;
+} /* Client_UnknownCount */
+
+
+GLOBAL long
+Client_MaxUserCount( void )
+{
+ return Max_Users;
+} /* Client_MaxUserCount */
+
+
+GLOBAL long
+Client_MyMaxUserCount( void )
+{
+ return My_Max_Users;
+} /* Client_MyMaxUserCount */
+
+
+GLOBAL bool
+Client_IsValidNick( char *Nick )
+{
+ /* Ist der Nick gueltig? */
+
+ char *ptr, goodchars[20];
+
+ assert( Nick != NULL );
+
+ strcpy( goodchars, ";0123456789-" );
+
+ if( Nick[0] == '#' ) return false;
+ if( strchr( goodchars, Nick[0] )) return false;
+ if( strlen( Nick ) >= CLIENT_NICK_LEN ) return false;
+
+ ptr = Nick;
+ while( *ptr )
+ {
+ if(( *ptr < 'A' ) && ( ! strchr( goodchars, *ptr ))) return false;
+ if(( *ptr > '}' ) && ( ! strchr( goodchars, *ptr ))) return false;
+ ptr++;
+ }
+
+ return true;
+} /* Client_IsValidNick */
+
+
+/**
+ * Return pointer to "My_Whowas" structure.
+ */
+GLOBAL WHOWAS *
+Client_GetWhowas( void )
+{
+ return My_Whowas;
+} /* Client_GetWhowas */
+
+/**
+ * Return the index of the last used WHOWAS entry.
+ */
+GLOBAL int
+Client_GetLastWhowasIndex( void )
+{
+ return Last_Whowas;
+} /* Client_GetLastWhowasIndex */
+
+
+/**
+ * Get the start time of this client.
+ * The result is the start time in seconds since 1970-01-01, as reported
+ * by the C function time(NULL).
+ */
+GLOBAL time_t
+Client_StartTime(CLIENT *Client)
+{
+ assert( Client != NULL );
+ return Client->starttime;
+} /* Client_Uptime */
+
+
+static long
+Count( CLIENT_TYPE Type )
+{
+ CLIENT *c;
+ long cnt;
+
+ cnt = 0;
+ c = My_Clients;
+ while( c )
+ {
+ if( c->type == Type ) cnt++;
+ c = (CLIENT *)c->next;
+ }
+ return cnt;
+} /* Count */
+
+
+static long
+MyCount( CLIENT_TYPE Type )
+{
+ CLIENT *c;
+ long cnt;
+
+ cnt = 0;
+ c = My_Clients;
+ while( c )
+ {
+ if(( c->introducer == This_Server ) && ( c->type == Type )) cnt++;
+ c = (CLIENT *)c->next;
+ }
+ return cnt;
+} /* MyCount */
+
+
+static CLIENT *
+New_Client_Struct( void )
{
/* Neue CLIENT-Struktur pre-initialisieren */
CLIENT *c;
- INT i;
- c = malloc( sizeof( CLIENT ));
+ c = (CLIENT *)malloc( sizeof( CLIENT ));
if( ! c )
{
- Log( LOG_EMERG, "Can't allocate memory!" );
+ Log( LOG_EMERG, "Can't allocate memory! [New_Client_Struct]" );
return NULL;
}
- c->next = NULL;
+ memset( c, 0, sizeof ( CLIENT ));
+
c->type = CLIENT_UNKNOWN;
c->conn_id = NONE;
- c->introducer = NULL;
- strcpy( c->nick, "" );
- strcpy( c->pass, "" );
- strcpy( c->host, "" );
- strcpy( c->user, "" );
- strcpy( c->name, "" );
- for( i = 0; i < MAX_CHANNELS; c->channels[i++] = NULL );
+ c->oper_by_me = false;
+ c->hops = -1;
+ c->token = -1;
+ c->mytoken = -1;
return c;
} /* New_Client */
+static void
+Generate_MyToken( CLIENT *Client )
+{
+ CLIENT *c;
+ int token;
+
+ c = My_Clients;
+ token = 2;
+ while( c )
+ {
+ if( c->mytoken == token )
+ {
+ /* Das Token wurde bereits vergeben */
+ token++;
+ c = My_Clients;
+ continue;
+ }
+ else c = (CLIENT *)c->next;
+ }
+ Client->mytoken = token;
+ Log( LOG_DEBUG, "Assigned token %d to server \"%s\".", token, Client->id );
+} /* Generate_MyToken */
+
+
+static void
+Adjust_Counters( CLIENT *Client )
+{
+ long count;
+
+ assert( Client != NULL );
+
+ if( Client->type != CLIENT_USER ) return;
+
+ if( Client->conn_id != NONE )
+ {
+ /* Local connection */
+ count = Client_MyUserCount( );
+ if( count > My_Max_Users ) My_Max_Users = count;
+ }
+ count = Client_UserCount( );
+ if( count > Max_Users ) Max_Users = count;
+} /* Adjust_Counters */
+
+
+/**
+ * Register client in My_Whowas structure for further recall by WHOWAS.
+ * Note: Only clients that have been connected at least 30 seconds will be
+ * registered to prevent automated IRC bots to "destroy" a nice server
+ * history database.
+ */
+GLOBAL void
+Client_RegisterWhowas( CLIENT *Client )
+{
+ int slot;
+ time_t now;
+
+ assert( Client != NULL );
+
+ now = time(NULL);
+ /* Don't register clients that were connected less than 30 seconds. */
+ if( now - Client->starttime < 30 )
+ return;
+
+ slot = Last_Whowas + 1;
+ if( slot >= MAX_WHOWAS || slot < 0 ) slot = 0;
+
+#ifdef DEBUG
+ Log( LOG_DEBUG, "Saving WHOWAS information to slot %d ...", slot );
+#endif
+
+ My_Whowas[slot].time = now;
+ strlcpy( My_Whowas[slot].id, Client_ID( Client ),
+ sizeof( My_Whowas[slot].id ));
+ strlcpy( My_Whowas[slot].user, Client_User( Client ),
+ sizeof( My_Whowas[slot].user ));
+ strlcpy( My_Whowas[slot].host, Client_Hostname( Client ),
+ sizeof( My_Whowas[slot].host ));
+ strlcpy( My_Whowas[slot].info, Client_Info( Client ),
+ sizeof( My_Whowas[slot].info ));
+ strlcpy( My_Whowas[slot].server, Client_ID( Client_Introducer( Client )),
+ sizeof( My_Whowas[slot].server ));
+
+ Last_Whowas = slot;
+} /* Client_RegisterWhowas */
+
+
/* -eof- */
projects / ngircd-alex.git / blobdiff