The server tried to connect to other servers only once when DNS or socket
failures occured.
This commit is contained in:
Alexander Barton
parent
a1ff081b8a
commit
83194a23a3
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@ -16,7 +16,7 @@
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#include "portab.h"
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static char UNUSED id[] = "$Id: conn.c,v 1.122 2003/04/21 10:52:26 alex Exp $";
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static char UNUSED id[] = "$Id: conn.c,v 1.123 2003/04/25 16:47:52 alex Exp $";
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#include "imp.h"
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#include <assert.h>
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@ -151,7 +151,7 @@ Conn_Exit( VOID )
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#ifdef RENDEZVOUS
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Rendezvous_UnregisterListeners( );
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#endif
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/* Sockets schliessen */
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for( i = 0; i < Conn_MaxFD + 1; i++ )
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{
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@ -183,7 +183,7 @@ Conn_Exit( VOID )
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}
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}
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}
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free( My_Connections );
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My_Connections = NULL;
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Pool_Size = 0;
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@ -217,7 +217,7 @@ Conn_ExitListeners( VOID )
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#ifdef RENDEZVOUS
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Rendezvous_UnregisterListeners( );
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#endif
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Log( LOG_INFO, "Shutting down all listening sockets ..." );
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for( i = 0; i < Conn_MaxFD + 1; i++ )
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{
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@ -240,7 +240,7 @@ Conn_NewListener( CONST UINT Port )
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#ifdef RENDEZVOUS
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CHAR name[CLIENT_ID_LEN], *info;
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#endif
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/* Server-"Listen"-Socket initialisieren */
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memset( &addr, 0, sizeof( addr ));
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addr.sin_family = AF_INET;
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@ -415,7 +415,7 @@ Conn_Handler( VOID )
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tv.tv_usec = 0;
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if( timeout ) tv.tv_sec = TIME_RES;
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else tv.tv_sec = 0;
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/* Auf Aktivitaet warten */
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i = select( Conn_MaxFD + 1, &read_sockets, &write_sockets, NULL, &tv );
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if( i == 0 )
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@ -443,7 +443,7 @@ Conn_Handler( VOID )
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/* Es kann geschrieben werden ... */
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idx = Socket2Index( i );
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if( idx == NONE ) continue;
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if( ! Handle_Write( idx ))
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{
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/* Fehler beim Schreiben! Diesen Socket nun
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@ -899,7 +899,7 @@ New_Connection( INT Sock )
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Log( LOG_CRIT, "Can't accept connection: %s!", strerror( errno ));
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return;
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}
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#ifdef USE_TCPWRAP
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/* Validate socket using TCP Wrappers */
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request_init( &req, RQ_DAEMON, PACKAGE_NAME, RQ_FILE, new_sock, RQ_CLIENT_SIN, &new_addr, NULL );
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@ -921,10 +921,10 @@ New_Connection( INT Sock )
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if( idx >= Pool_Size )
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{
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new_size = Pool_Size + CONNECTION_POOL;
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/* Im bisherigen Pool wurde keine freie Connection-Struktur mehr gefunden.
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* Wenn erlaubt und moeglich muss nun der Pool vergroessert werden: */
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if( Conf_MaxConnections > 0 )
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{
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/* Es ist ein Limit konfiguriert */
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@ -945,7 +945,7 @@ New_Connection( INT Sock )
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close( new_sock );
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return;
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}
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/* zunaechst realloc() versuchen; wenn das scheitert, malloc() versuchen
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* und Daten ggf. "haendisch" umkopieren. (Haesslich! Eine wirklich
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* dynamische Verwaltung waere wohl _deutlich_ besser ...) */
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@ -962,21 +962,21 @@ New_Connection( INT Sock )
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close( new_sock );
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return;
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}
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/* Struktur umkopieren ... */
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memcpy( ptr, My_Connections, sizeof( CONNECTION ) * Pool_Size );
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Log( LOG_DEBUG, "Allocated new connection pool for %ld items (%ld bytes). [malloc()/memcpy()]", new_size, sizeof( CONNECTION ) * new_size );
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}
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else Log( LOG_DEBUG, "Allocated new connection pool for %ld items (%ld bytes). [realloc()]", new_size, sizeof( CONNECTION ) * new_size );
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/* Adjust pointer to new block */
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My_Connections = ptr;
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/* Initialize new items */
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for( idx = Pool_Size; idx < new_size; idx++ ) Init_Conn_Struct( idx );
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idx = Pool_Size;
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/* Adjust new pool size */
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Pool_Size = new_size;
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}
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@ -1011,7 +1011,7 @@ New_Connection( INT Sock )
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/* Sub-Prozess wurde asyncron gestartet */
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My_Connections[idx].res_stat = s;
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}
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/* Penalty-Zeit setzen */
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Conn_SetPenalty( idx, 4 );
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} /* New_Connection */
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@ -1142,14 +1142,14 @@ Handle_Buffer( CONN_ID Idx )
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if( ! Unzip_Buffer( Idx )) return FALSE;
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}
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#endif
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if( My_Connections[Idx].rdatalen < 1 ) break;
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/* Eine komplette Anfrage muss mit CR+LF enden, vgl.
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* RFC 2812. Haben wir eine? */
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My_Connections[Idx].rbuf[My_Connections[Idx].rdatalen] = '\0';
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ptr = strstr( My_Connections[Idx].rbuf, "\r\n" );
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if( ptr ) delta = 2;
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#ifndef STRICT_RFC
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else
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@ -1164,7 +1164,7 @@ Handle_Buffer( CONN_ID Idx )
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else if( ptr2 ) ptr = ptr2;
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}
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#endif
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action = FALSE;
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if( ptr )
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{
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@ -1219,10 +1219,10 @@ Handle_Buffer( CONN_ID Idx )
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}
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#endif
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}
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if( action ) result = TRUE;
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} while( action );
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return result;
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} /* Handle_Buffer */
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@ -1348,7 +1348,7 @@ Check_Servers( VOID )
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LOCAL VOID
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New_Server( INT Server, CONN_ID Idx )
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{
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/* Neue Server-Verbindung aufbauen */
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/* Establish new server link */
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struct sockaddr_in new_addr;
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struct in_addr inaddr;
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@ -1358,11 +1358,12 @@ New_Server( INT Server, CONN_ID Idx )
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assert( Server > NONE );
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assert( Idx > NONE );
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/* Wurde eine gueltige IP-Adresse gefunden? */
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/* Did we get a valid IP address? */
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if( ! Conf_Server[Server].ip[0] )
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{
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/* Nein. Verbindung wieder freigeben: */
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/* No. Free connection structure and abort: */
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Init_Conn_Struct( Idx );
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Conf_Server[Server].conn_id = NONE;
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Log( LOG_ERR, "Can't connect to \"%s\" (connection %d): ip address unknown!", Conf_Server[Server].host, Idx );
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return;
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}
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@ -1377,8 +1378,9 @@ New_Server( INT Server, CONN_ID Idx )
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if( inaddr.s_addr == (unsigned)-1 )
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#endif
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{
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/* Konnte Adresse nicht konvertieren */
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/* Can't convert IP address */
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Init_Conn_Struct( Idx );
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Conf_Server[Server].conn_id = NONE;
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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 );
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return;
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}
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@ -1391,7 +1393,9 @@ New_Server( INT Server, CONN_ID Idx )
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new_sock = socket( PF_INET, SOCK_STREAM, 0 );
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if ( new_sock < 0 )
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{
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/* Can't create socket */
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Init_Conn_Struct( Idx );
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Conf_Server[Server].conn_id = NONE;
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Log( LOG_CRIT, "Can't create socket: %s!", strerror( errno ));
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return;
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}
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@ -1401,9 +1405,11 @@ New_Server( INT Server, CONN_ID Idx )
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res = connect( new_sock, (struct sockaddr *)&new_addr, sizeof( new_addr ));
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if(( res != 0 ) && ( errno != EINPROGRESS ))
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{
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/* Can't connect socket */
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Log( LOG_CRIT, "Can't connect socket: %s!", strerror( errno ));
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close( new_sock );
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Init_Conn_Struct( Idx );
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Conf_Server[Server].conn_id = NONE;
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return;
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}
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@ -1411,24 +1417,26 @@ New_Server( INT Server, CONN_ID Idx )
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c = Client_NewLocal( Idx, inet_ntoa( new_addr.sin_addr ), CLIENT_UNKNOWNSERVER, FALSE );
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if( ! c )
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{
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/* Can't create new client structure */
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close( new_sock );
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Init_Conn_Struct( Idx );
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Conf_Server[Server].conn_id = NONE;
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Log( LOG_ALERT, "Can't establish connection: can't create client structure!" );
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return;
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}
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Client_SetIntroducer( c, c );
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Client_SetToken( c, TOKEN_OUTBOUND );
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/* Verbindung registrieren */
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/* Register connection */
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My_Connections[Idx].sock = new_sock;
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My_Connections[Idx].addr = new_addr;
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strlcpy( My_Connections[Idx].host, Conf_Server[Server].host, sizeof( My_Connections[Idx].host ));
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/* Neuen Socket registrieren */
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/* Register new socket */
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FD_SET( new_sock, &My_Sockets );
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FD_SET( new_sock, &My_Connects );
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if( new_sock > Conn_MaxFD ) Conn_MaxFD = new_sock;
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Log( LOG_DEBUG, "Registered new connection %d on socket %d.", Idx, My_Connections[Idx].sock );
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} /* New_Server */
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@ -1531,7 +1539,7 @@ Read_Resolver_Result( INT r_fd )
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}
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Log( LOG_DEBUG, "Resolver: %s is \"%s\".", My_Connections[i].host, result );
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/* Aufraeumen */
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close( My_Connections[i].res_stat->pipe[0] );
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close( My_Connections[i].res_stat->pipe[1] );
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