From: Alexander Barton Date: Fri, 25 Apr 2003 16:47:52 +0000 (+0000) Subject: The server tried to connect to other servers only once when DNS or socket X-Git-Tag: rel-0-8-0-pre1~116 X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=commitdiff_plain;h=83194a23a30de5712375e10366bbd4f7b5b3e0c2;hp=a1ff081b8a59f8f9e4d4f873d1648b265819679b The server tried to connect to other servers only once when DNS or socket failures occured. --- diff --git a/src/ngircd/conn.c b/src/ngircd/conn.c index d35a0917..89f0ae66 100644 --- a/src/ngircd/conn.c +++ b/src/ngircd/conn.c @@ -16,7 +16,7 @@ #include "portab.h" -static char UNUSED id[] = "$Id: conn.c,v 1.122 2003/04/21 10:52:26 alex Exp $"; +static char UNUSED id[] = "$Id: conn.c,v 1.123 2003/04/25 16:47:52 alex Exp $"; #include "imp.h" #include @@ -151,7 +151,7 @@ Conn_Exit( VOID ) #ifdef RENDEZVOUS Rendezvous_UnregisterListeners( ); #endif - + /* Sockets schliessen */ for( i = 0; i < Conn_MaxFD + 1; i++ ) { @@ -183,7 +183,7 @@ Conn_Exit( VOID ) } } } - + free( My_Connections ); My_Connections = NULL; Pool_Size = 0; @@ -217,7 +217,7 @@ Conn_ExitListeners( VOID ) #ifdef RENDEZVOUS Rendezvous_UnregisterListeners( ); #endif - + Log( LOG_INFO, "Shutting down all listening sockets ..." ); for( i = 0; i < Conn_MaxFD + 1; i++ ) { @@ -240,7 +240,7 @@ Conn_NewListener( CONST UINT Port ) #ifdef RENDEZVOUS CHAR name[CLIENT_ID_LEN], *info; #endif - + /* Server-"Listen"-Socket initialisieren */ memset( &addr, 0, sizeof( addr )); addr.sin_family = AF_INET; @@ -415,7 +415,7 @@ Conn_Handler( VOID ) tv.tv_usec = 0; if( timeout ) tv.tv_sec = TIME_RES; else tv.tv_sec = 0; - + /* Auf Aktivitaet warten */ i = select( Conn_MaxFD + 1, &read_sockets, &write_sockets, NULL, &tv ); if( i == 0 ) @@ -443,7 +443,7 @@ Conn_Handler( VOID ) /* Es kann geschrieben werden ... */ idx = Socket2Index( i ); if( idx == NONE ) continue; - + if( ! Handle_Write( idx )) { /* Fehler beim Schreiben! Diesen Socket nun @@ -899,7 +899,7 @@ New_Connection( INT Sock ) Log( LOG_CRIT, "Can't accept connection: %s!", strerror( errno )); return; } - + #ifdef USE_TCPWRAP /* Validate socket using TCP Wrappers */ request_init( &req, RQ_DAEMON, PACKAGE_NAME, RQ_FILE, new_sock, RQ_CLIENT_SIN, &new_addr, NULL ); @@ -921,10 +921,10 @@ New_Connection( INT Sock ) if( idx >= Pool_Size ) { new_size = Pool_Size + CONNECTION_POOL; - + /* Im bisherigen Pool wurde keine freie Connection-Struktur mehr gefunden. * Wenn erlaubt und moeglich muss nun der Pool vergroessert werden: */ - + if( Conf_MaxConnections > 0 ) { /* Es ist ein Limit konfiguriert */ @@ -945,7 +945,7 @@ New_Connection( INT Sock ) close( new_sock ); return; } - + /* zunaechst realloc() versuchen; wenn das scheitert, malloc() versuchen * und Daten ggf. "haendisch" umkopieren. (Haesslich! Eine wirklich * dynamische Verwaltung waere wohl _deutlich_ besser ...) */ @@ -962,21 +962,21 @@ New_Connection( INT Sock ) close( new_sock ); return; } - + /* Struktur umkopieren ... */ memcpy( ptr, My_Connections, sizeof( CONNECTION ) * Pool_Size ); - + Log( LOG_DEBUG, "Allocated new connection pool for %ld items (%ld bytes). [malloc()/memcpy()]", new_size, sizeof( CONNECTION ) * new_size ); } else Log( LOG_DEBUG, "Allocated new connection pool for %ld items (%ld bytes). [realloc()]", new_size, sizeof( CONNECTION ) * new_size ); - + /* Adjust pointer to new block */ My_Connections = ptr; - + /* Initialize new items */ for( idx = Pool_Size; idx < new_size; idx++ ) Init_Conn_Struct( idx ); idx = Pool_Size; - + /* Adjust new pool size */ Pool_Size = new_size; } @@ -1011,7 +1011,7 @@ New_Connection( INT Sock ) /* Sub-Prozess wurde asyncron gestartet */ My_Connections[idx].res_stat = s; } - + /* Penalty-Zeit setzen */ Conn_SetPenalty( idx, 4 ); } /* New_Connection */ @@ -1142,14 +1142,14 @@ Handle_Buffer( CONN_ID Idx ) if( ! Unzip_Buffer( Idx )) return FALSE; } #endif - + if( My_Connections[Idx].rdatalen < 1 ) break; /* Eine komplette Anfrage muss mit CR+LF enden, vgl. * RFC 2812. Haben wir eine? */ My_Connections[Idx].rbuf[My_Connections[Idx].rdatalen] = '\0'; ptr = strstr( My_Connections[Idx].rbuf, "\r\n" ); - + if( ptr ) delta = 2; #ifndef STRICT_RFC else @@ -1164,7 +1164,7 @@ Handle_Buffer( CONN_ID Idx ) else if( ptr2 ) ptr = ptr2; } #endif - + action = FALSE; if( ptr ) { @@ -1219,10 +1219,10 @@ Handle_Buffer( CONN_ID Idx ) } #endif } - + if( action ) result = TRUE; } while( action ); - + return result; } /* Handle_Buffer */ @@ -1348,7 +1348,7 @@ Check_Servers( VOID ) LOCAL VOID New_Server( INT Server, CONN_ID Idx ) { - /* Neue Server-Verbindung aufbauen */ + /* Establish new server link */ struct sockaddr_in new_addr; struct in_addr inaddr; @@ -1358,11 +1358,12 @@ New_Server( INT Server, CONN_ID Idx ) assert( Server > NONE ); assert( Idx > NONE ); - /* Wurde eine gueltige IP-Adresse gefunden? */ + /* Did we get a valid IP address? */ if( ! Conf_Server[Server].ip[0] ) { - /* Nein. Verbindung wieder freigeben: */ + /* No. Free connection structure and abort: */ Init_Conn_Struct( Idx ); + Conf_Server[Server].conn_id = NONE; Log( LOG_ERR, "Can't connect to \"%s\" (connection %d): ip address unknown!", Conf_Server[Server].host, Idx ); return; } @@ -1377,8 +1378,9 @@ New_Server( INT Server, CONN_ID Idx ) if( inaddr.s_addr == (unsigned)-1 ) #endif { - /* Konnte Adresse nicht konvertieren */ + /* Can't convert IP address */ Init_Conn_Struct( Idx ); + Conf_Server[Server].conn_id = NONE; Log( LOG_ERR, "Can't connect to \"%s\" (connection %d): can't convert ip address %s!", Conf_Server[Server].host, Idx, Conf_Server[Server].ip ); return; } @@ -1391,7 +1393,9 @@ New_Server( INT Server, CONN_ID Idx ) new_sock = socket( PF_INET, SOCK_STREAM, 0 ); if ( new_sock < 0 ) { + /* Can't create socket */ Init_Conn_Struct( Idx ); + Conf_Server[Server].conn_id = NONE; Log( LOG_CRIT, "Can't create socket: %s!", strerror( errno )); return; } @@ -1401,9 +1405,11 @@ New_Server( INT Server, CONN_ID Idx ) res = connect( new_sock, (struct sockaddr *)&new_addr, sizeof( new_addr )); if(( res != 0 ) && ( errno != EINPROGRESS )) { + /* Can't connect socket */ Log( LOG_CRIT, "Can't connect socket: %s!", strerror( errno )); close( new_sock ); Init_Conn_Struct( Idx ); + Conf_Server[Server].conn_id = NONE; return; } @@ -1411,24 +1417,26 @@ New_Server( INT Server, CONN_ID Idx ) c = Client_NewLocal( Idx, inet_ntoa( new_addr.sin_addr ), CLIENT_UNKNOWNSERVER, FALSE ); if( ! c ) { + /* Can't create new client structure */ close( new_sock ); Init_Conn_Struct( Idx ); + Conf_Server[Server].conn_id = NONE; Log( LOG_ALERT, "Can't establish connection: can't create client structure!" ); return; } Client_SetIntroducer( c, c ); Client_SetToken( c, TOKEN_OUTBOUND ); - /* Verbindung registrieren */ + /* Register connection */ My_Connections[Idx].sock = new_sock; My_Connections[Idx].addr = new_addr; strlcpy( My_Connections[Idx].host, Conf_Server[Server].host, sizeof( My_Connections[Idx].host )); - /* Neuen Socket registrieren */ + /* Register new socket */ FD_SET( new_sock, &My_Sockets ); FD_SET( new_sock, &My_Connects ); if( new_sock > Conn_MaxFD ) Conn_MaxFD = new_sock; - + Log( LOG_DEBUG, "Registered new connection %d on socket %d.", Idx, My_Connections[Idx].sock ); } /* New_Server */ @@ -1531,7 +1539,7 @@ Read_Resolver_Result( INT r_fd ) } Log( LOG_DEBUG, "Resolver: %s is \"%s\".", My_Connections[i].host, result ); - + /* Aufraeumen */ close( My_Connections[i].res_stat->pipe[0] ); close( My_Connections[i].res_stat->pipe[1] );