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- Conn_Handler() unterstuetzt nun einen Timeout.
- fuer Verbindungen werden keine FILE-Handles mehr benutzt. - kleinere "Code Cleanups" ;-)
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@ -9,11 +9,16 @@
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* Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
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* der an comBase beteiligten Autoren finden Sie in der Datei AUTHORS.
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*
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* $Id: conn.c,v 1.2 2001/12/12 23:32:02 alex Exp $
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* $Id: conn.c,v 1.3 2001/12/13 01:33:09 alex Exp $
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*
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* connect.h: Verwaltung aller Netz-Verbindungen ("connections")
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*
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* $Log: conn.c,v $
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* Revision 1.3 2001/12/13 01:33:09 alex
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* - Conn_Handler() unterstuetzt nun einen Timeout.
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* - fuer Verbindungen werden keine FILE-Handles mehr benutzt.
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* - kleinere "Code Cleanups" ;-)
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*
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* Revision 1.2 2001/12/12 23:32:02 alex
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* - diverse Erweiterungen und Verbesserungen (u.a. sind nun mehrere
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* Verbindungen und Listen-Sockets moeglich).
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@ -58,7 +63,6 @@ typedef struct _Connection
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{
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INT sock; /* Socket Handle */
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struct sockaddr_in addr; /* Adresse des Client */
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FILE *fd; /* FILE Handle */
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} CONNECTION;
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@ -69,7 +73,9 @@ LOCAL VOID New_Connection( INT Sock );
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LOCAL INT Socket2Index( INT Sock );
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LOCAL VOID Close_Connection( INT Idx );
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LOCAL VOID Read_Data( INT Idx );
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LOCAL VOID Read_Request( INT Idx );
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LOCAL BOOLEAN Send( INT Idx, CHAR *Data );
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LOCAL fd_set My_Listener;
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@ -94,7 +100,6 @@ GLOBAL VOID Conn_Init( VOID )
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for( i = 0; i < MAX_CONNECTIONS; i++ )
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{
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My_Connections[i].sock = -1;
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My_Connections[i].fd = NULL;
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}
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} /* Conn_Init */
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@ -191,16 +196,20 @@ GLOBAL BOOLEAN Conn_New_Listener( CONST INT Port )
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} /* Conn_New_Listener */
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GLOBAL VOID Conn_Handler( VOID )
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GLOBAL VOID Conn_Handler( INT Timeout )
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{
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fd_set read_sockets;
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struct timeval tv;
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INT i;
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/* Timeout initialisieren */
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tv.tv_sec = Timeout;
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tv.tv_usec = 0;
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read_sockets = My_Sockets;
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if( select( My_Max_Fd + 1, &read_sockets, NULL, NULL, NULL ) == -1 )
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if( select( My_Max_Fd + 1, &read_sockets, NULL, NULL, &tv ) == -1 )
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{
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if( NGIRCd_Quit ) return;
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Log( LOG_ALERT, "select(): %s", strerror( errno ));
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if( errno != EINTR ) Log( LOG_ALERT, "select(): %s", strerror( errno ));
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return;
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}
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@ -229,7 +238,7 @@ LOCAL VOID Handle_Socket( INT Sock )
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/* Ein Client Socket: entweder ein User oder Server */
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idx = Socket2Index( Sock );
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Read_Data( idx );
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Read_Request( idx );
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}
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} /* Handle_Socket */
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@ -238,7 +247,6 @@ LOCAL VOID New_Connection( INT Sock )
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{
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struct sockaddr_in new_addr;
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INT new_sock, new_sock_len, idx;
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FILE *fd;
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new_sock_len = sizeof( new_addr );
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new_sock = accept( Sock, (struct sockaddr *)&new_addr, &new_sock_len );
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@ -252,16 +260,13 @@ LOCAL VOID New_Connection( INT Sock )
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for( idx = 0; idx < MAX_CONNECTIONS; idx++ ) if( My_Connections[idx].sock < 0 ) break;
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if( idx >= MAX_CONNECTIONS )
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{
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Log( LOG_ALERT, "Connection limit (%d) reached!", MAX_CONNECTIONS );
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Log( LOG_ALERT, "Can't accept connection: limit (%d) reached!", MAX_CONNECTIONS );
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close( new_sock );
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return;
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}
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fd = fdopen( new_sock, "r+" );
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/* Verbindung registrieren */
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My_Connections[idx].sock = new_sock;
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My_Connections[idx].fd = fd;
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My_Connections[idx].addr = new_addr;
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/* Neuen Socket registrieren */
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@ -269,7 +274,7 @@ LOCAL VOID New_Connection( INT Sock )
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if( new_sock > My_Max_Fd ) My_Max_Fd = new_sock;
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fputs( "hello world!\n", fd ); fflush( fd );
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Send( idx, "hello world!\n" );
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Log( LOG_INFO, "Accepted connection from %s:%d.", inet_ntoa( new_addr.sin_addr ), ntohs( new_addr.sin_port));
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} /* New_Connection */
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@ -292,33 +297,43 @@ LOCAL VOID Close_Connection( INT Idx )
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assert( My_Connections[Idx].sock >= 0 );
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if( fclose( My_Connections[Idx].fd ) != 0 )
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if( close( My_Connections[Idx].sock ) != 0 )
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{
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Log( LOG_ERR, "Error closing connection with %s:%d - %s", inet_ntoa( My_Connections[Idx].addr.sin_addr ), ntohs( My_Connections[Idx].addr.sin_port), strerror( errno ));
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}
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else
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{
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Log( LOG_INFO, "Closed connection with %s:%d.", inet_ntoa( My_Connections[Idx].addr.sin_addr ), ntohs( My_Connections[Idx].addr.sin_port ));
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close( My_Connections[Idx].sock );
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}
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FD_CLR( My_Connections[Idx].sock, &My_Sockets );
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My_Connections[Idx].sock = -1;
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My_Connections[Idx].fd = NULL;
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} /* Close_Connection */
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LOCAL VOID Read_Data( INT Idx )
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LOCAL VOID Read_Request( INT Idx )
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{
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/* Daten von Socket einlesen */
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/* Daten von Socket einlesen und entsprechend behandeln.
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* Tritt ein Fehler auf, so wird der Socket geschlossen. */
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#define SIZE 256
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CHAR buffer[SIZE];
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INT len;
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if( ! fgets( buffer, SIZE, My_Connections[Idx].fd ))
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len = recv( My_Connections[Idx].sock, buffer, SIZE, 0 );
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if( len == 0 )
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{
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/* Socket wurde geschlossen */
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Close_Connection( Idx );
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return;
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}
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if( len < 0 )
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{
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/* Fehler beim Lesen */
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Log( LOG_ALERT, "Read error on socket %d!", My_Connections[Idx].sock );
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Close_Connection( Idx );
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return;
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}
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@ -328,4 +343,31 @@ LOCAL VOID Read_Data( INT Idx )
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} /* Read_Data */
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LOCAL BOOLEAN Send( INT Idx, CHAR *Data )
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{
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/* Daten in Socket schreiben, ggf. in mehreren Stuecken. Tritt
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* ein Fehler auf, so wird die Verbindung beendet und FALSE
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* als Rueckgabewert geliefert. */
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INT n, sent, len;
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sent = 0;
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len = strlen( Data );
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while( sent < len )
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{
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n = send( My_Connections[Idx].sock, Data + sent, len - sent, 0 );
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if( n <= 0 )
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{
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/* Oops, ein Fehler! */
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Log( LOG_ALERT, "Write error on socket %d!", My_Connections[Idx].sock );
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Close_Connection( Idx );
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return FALSE;
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}
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sent += n;
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}
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return TRUE;
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} /* Send */
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/* -eof- */
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