/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001,2002 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.
+ * der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS.
*
- * $Id: client.c,v 1.1 2001/12/14 08:13:43 alex Exp $
+ * $Id: client.c,v 1.19 2002/01/04 01:21:22 alex Exp $
*
* client.c: Management aller Clients
*
* Server gewesen, so existiert eine entsprechende CONNECTION-Struktur.
*
* $Log: client.c,v $
+ * Revision 1.19 2002/01/04 01:21:22 alex
+ * - Client-Strukturen koennen von anderen Modulen nun nur noch ueber die
+ * enstprechenden (zum Teil neuen) Funktionen angesprochen werden.
+ *
+ * Revision 1.18 2002/01/03 02:28:06 alex
+ * - neue Funktion Client_CheckID(), diverse Aenderungen fuer Server-Links.
+ *
+ * Revision 1.17 2002/01/02 02:42:58 alex
+ * - Copyright-Texte aktualisiert.
+ *
+ * Revision 1.16 2002/01/01 18:25:44 alex
+ * - #include's fuer stdlib.h ergaenzt.
+ *
+ * Revision 1.15 2001/12/31 15:33:13 alex
+ * - neuer Befehl NAMES, kleinere Bugfixes.
+ * - Bug bei PING behoben: war zu restriktiv implementiert :-)
+ *
+ * Revision 1.14 2001/12/31 02:18:51 alex
+ * - viele neue Befehle (WHOIS, ISON, OPER, DIE, RESTART),
+ * - neuen Header "defines.h" mit (fast) allen Konstanten.
+ * - Code Cleanups und viele "kleine" Aenderungen & Bugfixes.
+ *
+ * Revision 1.13 2001/12/30 19:26:11 alex
+ * - Unterstuetzung fuer die Konfigurationsdatei eingebaut.
+ *
+ * Revision 1.12 2001/12/29 20:18:18 alex
+ * - neue Funktion Client_SetHostname().
+ *
+ * Revision 1.11 2001/12/29 03:10:47 alex
+ * - Client-Modes implementiert; Loglevel mal wieder angepasst.
+ *
+ * Revision 1.10 2001/12/27 19:13:47 alex
+ * - neue Funktion Client_Search(), besseres Logging.
+ *
+ * Revision 1.9 2001/12/27 17:15:29 alex
+ * - der eigene Hostname wird nun komplet (als FQDN) ermittelt.
+ *
+ * Revision 1.8 2001/12/27 16:54:51 alex
+ * - neue Funktion Client_GetID(), liefert die "Client ID".
+ *
+ * Revision 1.7 2001/12/26 14:45:37 alex
+ * - "Code Cleanups".
+ *
+ * Revision 1.6 2001/12/26 03:19:16 alex
+ * - neue Funktion Client_Nick().
+ *
+ * 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 :-)
- *
*/
+#define __client_c__
+
+
#include <portab.h>
#include "global.h"
#include <imp.h>
#include <assert.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <netdb.h>
+#include <exp.h>
+#include "client.h"
+
+#include <imp.h>
#include "channel.h"
+#include "conf.h"
#include "conn.h"
+#include "irc.h"
#include "log.h"
+#include "messages.h"
#include <exp.h>
-#include "client.h"
LOCAL CLIENT *This_Server, *My_Clients;
+LOCAL CHAR GetID_Buffer[CLIENT_ID_LEN];
LOCAL CLIENT *New_Client_Struct( 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, PACKAGE" exiting due to fatal errors!" );
exit( 1 );
}
This_Server->type = CLIENT_SERVER;
This_Server->conn_id = NONE;
This_Server->introducer = This_Server;
- strcpy( This_Server->nick, "ngircd" ); /* FIXME! */
-
+
+ gethostname( This_Server->host, CLIENT_HOST_LEN );
+ h = gethostbyname( This_Server->host );
+ if( h ) strcpy( This_Server->host, h->h_name );
+
+ strcpy( This_Server->id, Conf_ServerName );
+ strcpy( This_Server->info, Conf_ServerInfo );
+
My_Clients = This_Server;
} /* Client_Init */
GLOBAL VOID Client_Exit( VOID )
{
+ CLIENT *c, *next;
+ INT cnt;
+
+ Client_Destroy( This_Server );
+
+ cnt = 0;
+ c = My_Clients;
+ while( c )
+ {
+ cnt++;
+ next = 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 */
+
+
+GLOBAL CLIENT *Client_NewLocal( CONN_ID Idx, CHAR *Hostname, INT Type )
+{
+ /* Neuen lokalen Client erzeugen: Wrapper-Funktion fuer Client_New(). */
+ return Client_New( Idx, This_Server, Type, NULL, NULL, Hostname, NULL, 0, 0, NULL );
+} /* Client_NewLocal */
+
+
+GLOBAL CLIENT *Client_NewRemoteServer( CLIENT *Introducer, CHAR *Hostname, INT Hops, INT Token, CHAR *Info )
+{
+ /* Neuen Remote-Client erzeugen: Wrapper-Funktion fuer Client_New (). */
+ return Client_New( NONE, Introducer, CLIENT_SERVER, Hostname, NULL, Hostname, Info, Hops, Token, NULL );
+} /* Client_NewRemoteServer */
+
+
+GLOBAL CLIENT *Client_NewRemoteUser( CLIENT *Introducer, CHAR *Nick, INT Hops, CHAR *User, CHAR *Hostname, INT Token, CHAR *Modes, CHAR *Info )
+{
+ /* Neuen Remote-Client erzeugen: Wrapper-Funktion fuer Client_New (). */
+ return Client_New( NONE, Introducer, CLIENT_USER, Nick, User, Hostname, Info, Hops, Token, NULL );
+} /* Client_NewRemoteUser */
+
+
+GLOBAL CLIENT *Client_New( CONN_ID Idx, CLIENT *Introducer, INT Type, CHAR *ID, CHAR *User, CHAR *Hostname, CHAR *Info, INT Hops, INT Token, CHAR *Modes )
+{
+ CLIENT *client;
+
+ assert( Idx >= NONE );
+ assert( Introducer != NULL );
+ assert( Hostname != NULL );
+
+ client = New_Client_Struct( );
+ if( ! client ) return NULL;
+
+ /* Initialisieren */
+ client->conn_id = Idx;
+ client->introducer = Introducer;
+ client->type = Type;
+ if( ID ) Client_SetID( client, ID );
+ if( User ) Client_SetUser( client, User );
+ if( Hostname ) Client_SetHostname( client, Hostname );
+ if( Info ) Client_SetInfo( client, Info );
+ client->hops = Hops;
+ client->token = Token;
+ if( Modes ) Client_SetModes( client, Modes );
+
+ /* Verketten */
+ client->next = My_Clients;
+ My_Clients = client;
+
+ return client;
+} /* Client_New */
+
+
+GLOBAL VOID Client_Destroy( CLIENT *Client )
+{
+ /* Client entfernen. */
+
+ CLIENT *last, *c;
+
+ assert( Client != NULL );
+
+ last = NULL;
+ c = My_Clients;
+ while( c )
+ {
+ if( c == Client )
+ {
+ if( last ) last->next = c->next;
+ else My_Clients = c->next;
+
+ if( c->type == CLIENT_USER ) Log( LOG_NOTICE, "User \"%s!%s@%s\" exited (connection %d).", c->id, c->user, c->host, c->conn_id );
+
+ free( c );
+ break;
+ }
+ last = c;
+ c = c->next;
+ }
+} /* Client_Destroy */
+
+
+GLOBAL VOID Client_SetHostname( CLIENT *Client, CHAR *Hostname )
+{
+ /* Hostname eines Clients setzen */
+
+ assert( Client != NULL );
+ strncpy( Client->host, Hostname, CLIENT_HOST_LEN );
+ Client->host[CLIENT_HOST_LEN - 1] = '\0';
+} /* Client_SetHostname */
+
+
+GLOBAL VOID Client_SetID( CLIENT *Client, CHAR *ID )
+{
+ /* Hostname eines Clients setzen */
+
+ assert( Client != NULL );
+ strncpy( Client->id, ID, CLIENT_ID_LEN );
+ Client->id[CLIENT_ID_LEN - 1] = '\0';
+} /* Client_SetID */
+
+
+GLOBAL VOID Client_SetUser( CLIENT *Client, CHAR *User )
+{
+ /* Username eines Clients setzen */
+
+ assert( Client != NULL );
+ strncpy( Client->user, User, CLIENT_USER_LEN );
+ Client->user[CLIENT_USER_LEN - 1] = '\0';
+} /* Client_SetUser */
+
+
+GLOBAL VOID Client_SetInfo( CLIENT *Client, CHAR *Info )
+{
+ /* Hostname eines Clients setzen */
+
+ assert( Client != NULL );
+ strncpy( Client->info, Info, CLIENT_INFO_LEN );
+ Client->info[CLIENT_INFO_LEN - 1] = '\0';
+} /* Client_SetInfo */
+
+
+GLOBAL VOID Client_SetModes( CLIENT *Client, CHAR *Modes )
+{
+ /* Hostname eines Clients setzen */
+
+ assert( Client != NULL );
+ strncpy( Client->modes, Modes, CLIENT_MODE_LEN );
+ Client->info[CLIENT_MODE_LEN - 1] = '\0';
+} /* Client_SetModes */
+
+
+GLOBAL VOID Client_SetPassword( CLIENT *Client, CHAR *Pwd )
+{
+ /* Von einem Client geliefertes Passwort */
+
+ assert( Client != NULL );
+ strncpy( Client->pwd, Pwd, CLIENT_PASS_LEN );
+ Client->pwd[CLIENT_PASS_LEN - 1] = '\0';
+} /* Client_SetPassword */
+
+
+GLOBAL VOID Client_SetType( CLIENT *Client, INT Type )
+{
+ assert( Client != NULL );
+ Client->type = Type;
+} /* 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 );
+ Client->introducer = Introducer;
+} /* Client_SetIntroducer */
+
+
+GLOBAL VOID Client_SetOperByMe( CLIENT *Client, BOOLEAN OperByMe )
+{
+ assert( Client != NULL );
+ Client->oper_by_me = OperByMe;
+} /* Client_SetOperByMe */
+
+
+GLOBAL BOOLEAN Client_ModeAdd( CLIENT *Client, CHAR Mode )
+{
+ /* Mode soll gesetzt werden. TRUE wird geliefert, wenn der
+ * Mode neu gesetzt wurde, FALSE, wenn der Client den Mode
+ * bereits hatte. */
+
+ 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 */
+ strcat( Client->modes, x );
+ return TRUE;
+ }
+ else return FALSE;
+} /* Client_ModeAdd */
+
+
+GLOBAL BOOLEAN Client_ModeDel( CLIENT *Client, CHAR Mode )
+{
+ /* Mode soll geloescht werden. TRUE wird geliefert, wenn der
+ * Mode entfernt wurde, FALSE, wenn der Client den Mode
+ * ueberhaupt nicht hatte. */
+
+ CHAR x[2], *p;
+
+ assert( Client != NULL );
+
+ x[0] = Mode; x[1] = '\0';
+
+ p = strchr( Client->modes, x[0] );
+ if( ! p ) return FALSE;
+
+ /* Client hat den Mode -> loeschen */
+ while( *p )
+ {
+ *p = *(p + 1);
+ p++;
+ }
+ return TRUE;
+} /* Client_ModeDel */
+
+
+GLOBAL CLIENT *Client_GetFromConn( CONN_ID Idx )
+{
+ /* Client-Struktur, die zur lokalen Verbindung Idx gehoert,
+ * liefern. Wird keine gefunden, so wird NULL geliefert. */
+
+ CLIENT *c;
+
+ assert( Idx >= 0 );
+
+ c = My_Clients;
+ while( c )
+ {
+ if( c->conn_id == Idx ) return c;
+ c = c->next;
+ }
+ return NULL;
+} /* Client_GetFromConn */
+
+
+GLOBAL CLIENT *Client_GetFromID( CHAR *Nick )
+{
+ /* Client-Struktur, die den entsprechenden Nick hat,
+ * liefern. Wird keine gefunden, so wird NULL geliefert. */
+
+ CLIENT *c;
+
+ assert( Nick != NULL );
+
+ c = My_Clients;
+ while( c )
+ {
+ if( strcasecmp( c->id, Nick ) == 0 ) return c;
+ c = c->next;
+ }
+ return NULL;
+} /* Client_GetFromID */
+
+
+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 = 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 );
+
+ 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 ) 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 BOOLEAN 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 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;
+
+ sprintf( GetID_Buffer, "%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 BOOLEAN Client_HasMode( CLIENT *Client, CHAR Mode )
+{
+ assert( Client != NULL );
+ return strchr( Client->modes, Mode ) != NULL;
+} /* Client_HasMode */
+
+
+GLOBAL BOOLEAN Client_CheckNick( CLIENT *Client, CHAR *Nick )
+{
+ /* Nick ueberpruefen */
+
+ CLIENT *c;
+
+ assert( Client != NULL );
+ assert( Nick != NULL );
+
+ /* Nick zu lang? */
+ if( strlen( Nick ) > CLIENT_NICK_LEN ) return IRC_WriteStrClient( Client, This_Server, ERR_ERRONEUSNICKNAME_MSG, Client_ID( Client ), Nick );
+
+ /* Nick bereits vergeben? */
+ c = My_Clients;
+ while( c )
+ {
+ if( strcasecmp( c->id, Nick ) == 0 )
+ {
+ /* den Nick gibt es bereits */
+ IRC_WriteStrClient( Client, This_Server, ERR_NICKNAMEINUSE_MSG, Client_ID( Client ), Nick );
+ return FALSE;
+ }
+ c = c->next;
+ }
+
+ return TRUE;
+} /* Client_CheckNick */
+
+
+GLOBAL BOOLEAN 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 ) return IRC_WriteStrClient( Client, This_Server, ERR_ERRONEUSNICKNAME_MSG, Client_ID( Client ), ID );
+
+ /* ID bereits vergeben? */
+ c = My_Clients;
+ while( c )
+ {
+ if( strcasecmp( c->id, ID ) == 0 )
+ {
+ /* die Server-ID gibt es bereits */
+ sprintf( str, "ID \"%s\" already registered!", ID );
+ Log( LOG_ALERT, "%s (on connection %d)", str, Client->conn_id );
+ Conn_Close( Client->conn_id, str );
+ return FALSE;
+ }
+ c = c->next;
+ }
+
+ return TRUE;
+} /* Client_CheckID */
+
+
+GLOBAL CLIENT *Client_Search( CHAR *ID )
+{
+ /* Client suchen, auf den ID passt */
+
+ CLIENT *c;
+
+ assert( ID != NULL );
+
+ c = My_Clients;
+ while( c )
+ {
+ if( strcasecmp( c->id, ID ) == 0 ) return c;
+ c = c->next;
+ }
+
+ return NULL;
+} /* Client_Search */
+
+
+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 c->next;
+} /* Client_Next */
+
+
LOCAL CLIENT *New_Client_Struct( VOID )
{
+ /* Neue CLIENT-Struktur pre-initialisieren */
+
CLIENT *c;
INT i;
c->type = CLIENT_UNKNOWN;
c->conn_id = NONE;
c->introducer = NULL;
- strcpy( c->nick, "" );
- strcpy( c->pass, "" );
+ strcpy( c->id, "" );
+ strcpy( c->pwd, "" );
+ strcpy( c->host, "" );
+ strcpy( c->user, "" );
+ strcpy( c->info, "" );
for( i = 0; i < MAX_CHANNELS; c->channels[i++] = NULL );
-
+ strcpy( c->modes, "" );
+ c->oper_by_me = FALSE;
+ c->hops = -1;
+ c->token = -1;
+
return c;
} /* New_Client */
projects / ngircd-alex.git / blobdiff