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- /*
- * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2005 by Alexander Barton (alex@barton.de)
- *
- * 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.
- */
- #define __client_c__
- #include "portab.h"
- static char UNUSED id[] = "$Id: client.c,v 1.91 2006/04/23 10:37:27 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 "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>
- #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 )
- {
- 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 );
- }
- /* Client-Struktur dieses Servers */
- This_Server->next = NULL;
- 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 );
- 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 )
- {
- CLIENT *c, *next;
- int cnt;
- 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 = (CLIENT *)c->next;
- free( c );
- c = next;
- }
- if( cnt ) Log( LOG_INFO, "Freed %d client structure%s.", cnt, cnt == 1 ? "" : "s" );
- } /* Client_Exit */
- 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)
- {
- CLIENT *client;
- assert( Idx >= NONE );
- assert( Introducer != NULL );
- assert( Hostname != NULL );
- client = New_Client_Struct( );
- if( ! client ) return NULL;
- /* Initialisieren */
- client->starttime = time(NULL);
- client->conn_id = Idx;
- 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 = (POINTER *)My_Clients;
- My_Clients = client;
- /* Adjust counters */
- Adjust_Counters( client );
- return client;
- } /* Init_New_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 = (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 = (CLIENT *)c->next;
- }
- } /* Client_Destroy */
- 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 )
- {
- /* 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_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 */
- 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_ID */
- GLOBAL char *
- Client_Info( CLIENT *Client )
- {
- assert( Client != NULL );
- return Client->info;
- } /* Client_Info */
- 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;
-
- c = (CLIENT *)malloc( sizeof( CLIENT ));
- if( ! c )
- {
- Log( LOG_EMERG, "Can't allocate memory! [New_Client_Struct]" );
- return NULL;
- }
- memset( c, 0, sizeof ( CLIENT ));
- c->type = CLIENT_UNKNOWN;
- c->conn_id = NONE;
- 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- */
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