X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Fconn.c;h=6182857cfeffdfd3a321af6d6ff3759c860c3137;hp=2e896a28187d33f6d2dcadc876f49284078a3350;hb=7c91951d74f0590c4135fa1d2517c739b14771f6;hpb=d5c97f81e98aaeba6830d4c26aff53f309a8b372 diff --git a/src/ngircd/conn.c b/src/ngircd/conn.c index 2e896a28..6182857c 100644 --- a/src/ngircd/conn.c +++ b/src/ngircd/conn.c @@ -9,11 +9,18 @@ * Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste * der an comBase beteiligten Autoren finden Sie in der Datei AUTHORS. * - * $Id: conn.c,v 1.8 2001/12/23 22:02:54 alex Exp $ + * $Id: conn.c,v 1.10 2001/12/25 22:03:47 alex Exp $ * * connect.h: Verwaltung aller Netz-Verbindungen ("connections") * * $Log: conn.c,v $ + * Revision 1.10 2001/12/25 22:03:47 alex + * - Conn_Close() eingefuehrt: war die lokale Funktion Close_Connection(). + * + * Revision 1.9 2001/12/24 01:32:33 alex + * - in Conn_WriteStr() wurde das CR+LF nicht angehaengt! + * - Fehler-Ausgaben vereinheitlicht. + * * Revision 1.8 2001/12/23 22:02:54 alex * - Conn_WriteStr() nimmt nun variable Parameter, * - diverse kleinere Aenderungen. @@ -102,7 +109,6 @@ LOCAL VOID Handle_Read( INT sock ); LOCAL BOOLEAN Handle_Write( CONN_ID Idx ); LOCAL VOID New_Connection( INT Sock ); LOCAL CONN_ID Socket2Index( INT Sock ); -LOCAL VOID Close_Connection( CONN_ID Idx, CHAR *Msg ); LOCAL VOID Read_Request( CONN_ID Idx ); LOCAL BOOLEAN Try_Write( CONN_ID Idx ); @@ -144,7 +150,7 @@ GLOBAL VOID Conn_Exit( VOID ) { if( My_Connections[idx].sock == i ) break; } - if( idx < MAX_CONNECTIONS ) Close_Connection( idx, "Server going down ..." ); + if( idx < MAX_CONNECTIONS ) Conn_Close( idx, "Server going down ..." ); else if( FD_ISSET( i, &My_Listener )) { close( i ); @@ -178,27 +184,27 @@ GLOBAL BOOLEAN Conn_New_Listener( CONST INT Port ) sock = socket( PF_INET, SOCK_STREAM, 0); if( sock < 0 ) { - Log( LOG_ALERT, "Can't create socket: %s", strerror( errno )); + Log( LOG_ALERT, "Can't create socket: %s!", strerror( errno )); return FALSE; } /* Socket-Optionen setzen */ if( fcntl( sock, F_SETFL, O_NONBLOCK ) != 0 ) { - Log( LOG_ALERT, "Can't enable non-blocking mode: %s", strerror( errno )); + Log( LOG_ALERT, "Can't enable non-blocking mode: %s!", strerror( errno )); close( sock ); return FALSE; } if( setsockopt( sock, SOL_SOCKET, SO_REUSEADDR, &on, (socklen_t)sizeof( on )) != 0) { - Log( LOG_CRIT, "Can't set socket options: %s", strerror( errno )); + Log( LOG_CRIT, "Can't set socket options: %s!", strerror( errno )); /* dieser Fehler kann ignoriert werden. */ } /* an Port binden */ if( bind( sock, (struct sockaddr *)&addr, (socklen_t)sizeof( addr )) != 0 ) { - Log( LOG_ALERT, "Can't bind socket: %s", strerror( errno )); + Log( LOG_ALERT, "Can't bind socket: %s!", strerror( errno )); close( sock ); return FALSE; } @@ -206,7 +212,7 @@ GLOBAL BOOLEAN Conn_New_Listener( CONST INT Port ) /* in "listen mode" gehen :-) */ if( listen( sock, 10 ) != 0 ) { - Log( LOG_ALERT, "Can't listen on soecket: %s", strerror( errno )); + Log( LOG_ALERT, "Can't listen on soecket: %s!", strerror( errno )); close( sock ); return FALSE; } @@ -247,7 +253,7 @@ GLOBAL VOID Conn_Handler( INT Timeout ) read_sockets = My_Sockets; if( select( My_Max_Fd + 1, &read_sockets, &write_sockets, NULL, &tv ) == -1 ) { - if( errno != EINTR ) Log( LOG_ALERT, "select(): %s", strerror( errno )); + if( errno != EINTR ) Log( LOG_ALERT, "select(): %s!", strerror( errno )); return; } @@ -276,17 +282,19 @@ GLOBAL BOOLEAN Conn_WriteStr( CONN_ID Idx, CHAR *Format, ... ) va_list ap; va_start( ap, Format ); - if( vsnprintf( buffer, MAX_CMDLEN, Format, ap ) == MAX_CMDLEN ) + if( vsnprintf( buffer, MAX_CMDLEN - 2, Format, ap ) == MAX_CMDLEN - 2 ) { Log( LOG_ALERT, "String too long to send (connection %d)!", Idx ); - Close_Connection( Idx, "Server error: String too long to send!" ); + Conn_Close( Idx, "Server error: String too long to send!" ); return FALSE; } - ok = Conn_Write( Idx, buffer, strlen( buffer )); -#ifdef DEBUG +#ifdef SNIFFER Log( LOG_DEBUG, " -> connection %d: '%s'.", Idx, buffer ); #endif + + strcat( buffer, "\r\n" ); + ok = Conn_Write( Idx, buffer, strlen( buffer )); va_end( ap ); return ok; @@ -315,7 +323,7 @@ GLOBAL BOOLEAN Conn_Write( CONN_ID Idx, CHAR *Data, INT Len ) { /* der Puffer ist dummerweise voll ... */ Log( LOG_NOTICE, "Write buffer overflow (connection %d)!", Idx ); - Close_Connection( Idx, NULL ); + Conn_Close( Idx, NULL ); return FALSE; } @@ -333,6 +341,32 @@ GLOBAL BOOLEAN Conn_Write( CONN_ID Idx, CHAR *Data, INT Len ) } /* Conn_Write */ +GLOBAL VOID Conn_Close( CONN_ID Idx, CHAR *Msg ) +{ + /* Verbindung schliessen */ + + assert( Idx >= 0 ); + assert( My_Connections[Idx].sock >= 0 ); + + if( Msg ) Conn_WriteStr( Idx, "ERROR :%s", Msg ); + + if( close( My_Connections[Idx].sock ) != 0 ) + { + Log( LOG_ERR, "Error closing connection %d with %s:%d - %s!", Idx, inet_ntoa( My_Connections[Idx].addr.sin_addr ), ntohs( My_Connections[Idx].addr.sin_port), strerror( errno )); + return; + } + else + { + Log( LOG_NOTICE, "Connection %d with %s:%d closed.", Idx, inet_ntoa( My_Connections[Idx].addr.sin_addr ), ntohs( My_Connections[Idx].addr.sin_port )); + } + + Client_Destroy( Client_GetFromConn( Idx )); + + FD_CLR( My_Connections[Idx].sock, &My_Sockets ); + My_Connections[Idx].sock = NONE; +} /* Conn_Close */ + + LOCAL BOOLEAN Try_Write( CONN_ID Idx ) { /* Versuchen, Daten aus dem Schreib-Puffer in den @@ -351,8 +385,8 @@ LOCAL BOOLEAN Try_Write( CONN_ID Idx ) /* Fehler! */ if( errno != EINTR ) { - Log( LOG_ALERT, "select(): %s", strerror( errno )); - Close_Connection( Idx, NULL ); + Log( LOG_ALERT, "select(): %s!", strerror( errno )); + Conn_Close( Idx, NULL ); return FALSE; } } @@ -402,8 +436,8 @@ LOCAL BOOLEAN Handle_Write( CONN_ID Idx ) if( len < 0 ) { /* Oops, ein Fehler! */ - Log( LOG_ALERT, "Write error (buffer) on connection %d: %s", Idx, strerror( errno )); - Close_Connection( Idx, NULL ); + Log( LOG_ALERT, "Write error (buffer) on connection %d: %s!", Idx, strerror( errno )); + Conn_Close( Idx, NULL ); return FALSE; } @@ -430,7 +464,7 @@ LOCAL VOID New_Connection( INT Sock ) new_sock = accept( Sock, (struct sockaddr *)&new_addr, (socklen_t *)&new_sock_len ); if( new_sock < 0 ) { - Log( LOG_CRIT, "Can't accept connection: %s", strerror( errno )); + Log( LOG_CRIT, "Can't accept connection: %s!", strerror( errno )); return; } @@ -481,31 +515,6 @@ LOCAL CONN_ID Socket2Index( INT Sock ) } /* Socket2Index */ -LOCAL VOID Close_Connection( CONN_ID Idx, CHAR *Msg ) -{ - /* Verbindung schlie§en */ - - assert( Idx >= 0 ); - assert( My_Connections[Idx].sock >= 0 ); - - if( Msg ) Conn_WriteStr( Idx, "ERROR :%s", Msg ); - - if( close( My_Connections[Idx].sock ) != 0 ) - { - Log( LOG_ERR, "Error closing connection %d with %s:%d - %s", Idx, inet_ntoa( My_Connections[Idx].addr.sin_addr ), ntohs( My_Connections[Idx].addr.sin_port), strerror( errno )); - } - else - { - Log( LOG_NOTICE, "Connection %d with %s:%d closed.", Idx, inet_ntoa( My_Connections[Idx].addr.sin_addr ), ntohs( My_Connections[Idx].addr.sin_port )); - } - - Client_Destroy( Client_GetFromConn( Idx )); - - FD_CLR( My_Connections[Idx].sock, &My_Sockets ); - My_Connections[Idx].sock = NONE; -} /* Close_Connection */ - - LOCAL VOID Read_Request( CONN_ID Idx ) { /* Daten von Socket einlesen und entsprechend behandeln. @@ -524,15 +533,15 @@ LOCAL VOID Read_Request( CONN_ID Idx ) { /* Socket wurde geschlossen */ Log( LOG_INFO, "%s:%d is closing the connection ...", inet_ntoa( My_Connections[Idx].addr.sin_addr ), ntohs( My_Connections[Idx].addr.sin_port)); - Close_Connection( Idx, NULL ); + Conn_Close( Idx, NULL ); return; } if( len < 0 ) { /* Fehler beim Lesen */ - Log( LOG_ALERT, "Read error on connection %d!", Idx ); - Close_Connection( Idx, "Read error!" ); + Log( LOG_ALERT, "Read error on connection %d: %s!", Idx, strerror( errno )); + Conn_Close( Idx, "Read error!" ); return; } @@ -546,7 +555,7 @@ LOCAL VOID Read_Request( CONN_ID Idx ) * (incl. CR+LF!) werden; vgl. RFC 2812. Wenn soetwas * empfangen wird, wird der Client disconnectiert. */ Log( LOG_ALERT, "Request too long (connection %d)!", Idx ); - Close_Connection( Idx, "Request too long!" ); + Conn_Close( Idx, "Request too long!" ); return; }