|
|
|
|
@@ -9,7 +9,7 @@
|
|
|
|
|
* Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
|
|
|
|
|
* der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS.
|
|
|
|
|
*
|
|
|
|
|
* $Id: conn.c,v 1.95 2002/11/23 17:04:07 alex Exp $
|
|
|
|
|
* $Id: conn.c,v 1.96 2002/11/26 23:07:24 alex Exp $
|
|
|
|
|
*
|
|
|
|
|
* connect.h: Verwaltung aller Netz-Verbindungen ("connections")
|
|
|
|
|
*/
|
|
|
|
|
@@ -42,6 +42,10 @@
|
|
|
|
|
#include <stdint.h> /* u.a. fuer Mac OS X */
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
#include <zlib.h>
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#include "exp.h"
|
|
|
|
|
#include "conn.h"
|
|
|
|
|
|
|
|
|
|
@@ -60,6 +64,20 @@
|
|
|
|
|
#define SERVER_WAIT (NONE - 1)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
typedef struct _ZipData
|
|
|
|
|
{
|
|
|
|
|
z_stream in; /* "Handle" fuer Input-Stream */
|
|
|
|
|
z_stream out; /* "Handle" fuer Output-Stream */
|
|
|
|
|
CHAR rbuf[READBUFFER_LEN]; /* Lesepuffer */
|
|
|
|
|
INT rdatalen; /* Laenge der Daten im Lesepuffer (komprimiert) */
|
|
|
|
|
CHAR wbuf[WRITEBUFFER_LEN]; /* Schreibpuffer */
|
|
|
|
|
INT wdatalen; /* Laenge der Daten im Schreibpuffer (unkomprimiert) */
|
|
|
|
|
LONG bytes_in, bytes_out; /* Counter fuer Statistik (unkomprimiert!) */
|
|
|
|
|
} ZIPDATA;
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
typedef struct _Connection
|
|
|
|
|
{
|
|
|
|
|
INT sock; /* Socket Handle */
|
|
|
|
|
@@ -76,7 +94,11 @@ typedef struct _Connection
|
|
|
|
|
time_t lastprivmsg; /* Letzte PRIVMSG */
|
|
|
|
|
time_t delaytime; /* Nicht beachten bis ("penalty") */
|
|
|
|
|
LONG bytes_in, bytes_out; /* Counter fuer Statistik */
|
|
|
|
|
INT flag; /* Channel-Flag (vgl. "irc-write"-Modul) */
|
|
|
|
|
INT flag; /* "Markierungs-Flag" (vgl. "irc-write"-Modul) */
|
|
|
|
|
INT options; /* Link-Optionen */
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
ZIPDATA zip; /* Kompressionsinformationen */
|
|
|
|
|
#endif
|
|
|
|
|
} CONNECTION;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@@ -94,6 +116,12 @@ LOCAL BOOLEAN Init_Socket PARAMS(( INT Sock ));
|
|
|
|
|
LOCAL VOID New_Server PARAMS(( INT Server, CONN_ID Idx ));
|
|
|
|
|
LOCAL VOID Read_Resolver_Result PARAMS(( INT r_fd ));
|
|
|
|
|
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
LOCAL BOOLEAN Zip_Buffer PARAMS(( CONN_ID Idx, CHAR *Data, INT Len ));
|
|
|
|
|
LOCAL BOOLEAN Zip_Flush PARAMS(( CONN_ID Idx ));
|
|
|
|
|
LOCAL BOOLEAN Unzip_Buffer PARAMS(( CONN_ID Idx ));
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
LOCAL fd_set My_Listeners;
|
|
|
|
|
LOCAL fd_set My_Sockets;
|
|
|
|
|
@@ -322,7 +350,11 @@ Conn_Handler( VOID )
|
|
|
|
|
FD_ZERO( &write_sockets );
|
|
|
|
|
for( i = 0; i < Pool_Size; i++ )
|
|
|
|
|
{
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
if(( My_Connections[i].sock > NONE ) && (( My_Connections[i].wdatalen > 0 ) || ( My_Connections[i].zip.wdatalen > 0 )))
|
|
|
|
|
#else
|
|
|
|
|
if(( My_Connections[i].sock > NONE ) && ( My_Connections[i].wdatalen > 0 ))
|
|
|
|
|
#endif
|
|
|
|
|
{
|
|
|
|
|
/* Socket der Verbindung in Set aufnehmen */
|
|
|
|
|
FD_SET( My_Connections[i].sock, &write_sockets );
|
|
|
|
|
@@ -471,41 +503,47 @@ Conn_Write( CONN_ID Idx, CHAR *Data, INT Len )
|
|
|
|
|
assert( Data != NULL );
|
|
|
|
|
assert( Len > 0 );
|
|
|
|
|
|
|
|
|
|
/* Ist der entsprechende Socket ueberhaupt noch offen?
|
|
|
|
|
* In einem "Handler-Durchlauf" kann es passieren, dass
|
|
|
|
|
* dem nicht mehr so ist, wenn einer von mehreren
|
|
|
|
|
* Conn_Write()'s fehlgeschlagen ist. In diesem Fall
|
|
|
|
|
* wird hier einfach ein Fehler geliefert. */
|
|
|
|
|
/* Ist der entsprechende Socket ueberhaupt noch offen? In einem
|
|
|
|
|
* "Handler-Durchlauf" kann es passieren, dass dem nicht mehr so
|
|
|
|
|
* ist, wenn einer von mehreren Conn_Write()'s fehlgeschlagen ist.
|
|
|
|
|
* In diesem Fall wird hier einfach ein Fehler geliefert. */
|
|
|
|
|
if( My_Connections[Idx].sock <= NONE )
|
|
|
|
|
{
|
|
|
|
|
Log( LOG_DEBUG, "Skipped write on closed socket (connection %d).", Idx );
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* pruefen, ob Daten im Schreibpuffer sind. Wenn ja, zunaechst
|
|
|
|
|
* pruefen, ob diese gesendet werden koennen */
|
|
|
|
|
if( My_Connections[Idx].wdatalen > 0 )
|
|
|
|
|
{
|
|
|
|
|
if( ! Try_Write( Idx )) return FALSE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* pruefen, ob im Schreibpuffer genuegend Platz ist */
|
|
|
|
|
/* Pruefen, ob im Schreibpuffer genuegend Platz ist. Ziel ist es,
|
|
|
|
|
* moeglichts viel im Puffer zu haben und _nicht_ gleich alles auf den
|
|
|
|
|
* Socket zu schreiben (u.a. wg. Komprimierung). */
|
|
|
|
|
if( WRITEBUFFER_LEN - My_Connections[Idx].wdatalen - Len <= 0 )
|
|
|
|
|
{
|
|
|
|
|
/* der Puffer ist dummerweise voll ... */
|
|
|
|
|
Log( LOG_NOTICE, "Write buffer overflow (connection %d)!", Idx );
|
|
|
|
|
Conn_Close( Idx, "Write buffer overflow!", NULL, FALSE );
|
|
|
|
|
return FALSE;
|
|
|
|
|
/* Der Puffer ist dummerweise voll. Jetzt versuchen, den Puffer
|
|
|
|
|
* zu schreiben, wenn das nicht klappt, haben wir ein Problem ... */
|
|
|
|
|
if( ! Try_Write( Idx )) return FALSE;
|
|
|
|
|
|
|
|
|
|
/* nun neu pruefen: */
|
|
|
|
|
if( WRITEBUFFER_LEN - My_Connections[Idx].wdatalen - Len <= 0 )
|
|
|
|
|
{
|
|
|
|
|
Log( LOG_NOTICE, "Write buffer overflow (connection %d)!", Idx );
|
|
|
|
|
Conn_Close( Idx, "Write buffer overflow!", NULL, FALSE );
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Daten in Puffer kopieren */
|
|
|
|
|
memcpy( My_Connections[Idx].wbuf + My_Connections[Idx].wdatalen, Data, Len );
|
|
|
|
|
My_Connections[Idx].wdatalen += Len;
|
|
|
|
|
|
|
|
|
|
/* pruefen, on Daten vorhanden sind und geschrieben werden koennen */
|
|
|
|
|
if( My_Connections[Idx].wdatalen > 0 )
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
if( My_Connections[Idx].options & CONN_ZIP )
|
|
|
|
|
{
|
|
|
|
|
if( ! Try_Write( Idx )) return FALSE;
|
|
|
|
|
/* Daten komprimieren und in Puffer kopieren */
|
|
|
|
|
if( ! Zip_Buffer( Idx, Data, Len )) return FALSE;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
|
|
|
|
/* Daten in Puffer kopieren */
|
|
|
|
|
memcpy( My_Connections[Idx].wbuf + My_Connections[Idx].wdatalen, Data, Len );
|
|
|
|
|
My_Connections[Idx].wdatalen += Len;
|
|
|
|
|
My_Connections[Idx].bytes_out += Len;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
|
@@ -519,6 +557,11 @@ Conn_Close( CONN_ID Idx, CHAR *LogMsg, CHAR *FwdMsg, BOOLEAN InformClient )
|
|
|
|
|
* Sub-Prozessen offene Pipes werden geschlossen. */
|
|
|
|
|
|
|
|
|
|
CLIENT *c;
|
|
|
|
|
DOUBLE in_k, out_k;
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
DOUBLE in_z_k, out_z_k;
|
|
|
|
|
INT in_p, out_p;
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
assert( Idx > NONE );
|
|
|
|
|
assert( My_Connections[Idx].sock > NONE );
|
|
|
|
|
@@ -545,7 +588,22 @@ Conn_Close( CONN_ID Idx, CHAR *LogMsg, CHAR *FwdMsg, BOOLEAN InformClient )
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Log( LOG_INFO, "Connection %d (socket %d) with %s:%d closed (%.1fK in/%.1fK out).", Idx, My_Connections[Idx].sock, My_Connections[Idx].host, ntohs( My_Connections[Idx].addr.sin_port ), (DOUBLE)My_Connections[Idx].bytes_in / 1024, (DOUBLE)My_Connections[Idx].bytes_out / 1024 );
|
|
|
|
|
in_k = (DOUBLE)My_Connections[Idx].bytes_in / 1024;
|
|
|
|
|
out_k = (DOUBLE)My_Connections[Idx].bytes_out / 1024;
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
if( My_Connections[Idx].options & CONN_ZIP )
|
|
|
|
|
{
|
|
|
|
|
in_z_k = (DOUBLE)My_Connections[Idx].zip.bytes_in / 1024;
|
|
|
|
|
out_z_k = (DOUBLE)My_Connections[Idx].zip.bytes_out / 1024;
|
|
|
|
|
in_p = (INT)(( in_k * 100 ) / in_z_k );
|
|
|
|
|
out_p = (INT)(( out_k * 100 ) / out_z_k );
|
|
|
|
|
Log( LOG_INFO, "Connection %d (socket %d) with %s:%d closed (in: %.1fk/%.1fk/%d%%, out: %.1fk/%.1fk/%d%%).", Idx, My_Connections[Idx].sock, My_Connections[Idx].host, ntohs( My_Connections[Idx].addr.sin_port ), in_k, in_z_k, in_p, out_k, out_z_k, out_p );
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
|
|
|
|
Log( LOG_INFO, "Connection %d (socket %d) with %s:%d closed (in: %.1fk, out: %.1fk).", Idx, My_Connections[Idx].sock, My_Connections[Idx].host, ntohs( My_Connections[Idx].addr.sin_port ), in_k, out_k );
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Socket als "ungueltig" markieren */
|
|
|
|
|
@@ -574,6 +632,15 @@ Conn_Close( CONN_ID Idx, CHAR *LogMsg, CHAR *FwdMsg, BOOLEAN InformClient )
|
|
|
|
|
Conf_Server[My_Connections[Idx].our_server].lasttry = time( NULL ) - Conf_ConnectRetry + RECONNECT_DELAY;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
/* Ggf. zlib abmelden */
|
|
|
|
|
if( Conn_Options( Idx ) & CONN_ZIP )
|
|
|
|
|
{
|
|
|
|
|
inflateEnd( &My_Connections[Idx].zip.in );
|
|
|
|
|
deflateEnd( &My_Connections[Idx].zip.out );
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Connection-Struktur loeschen (=freigeben) */
|
|
|
|
|
Init_Conn_Struct( Idx );
|
|
|
|
|
} /* Conn_Close */
|
|
|
|
|
@@ -713,6 +780,87 @@ Conn_SetServer( CONN_ID Idx, INT ConfServer )
|
|
|
|
|
} /* Conn_SetServer */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
GLOBAL VOID
|
|
|
|
|
Conn_SetOption( CONN_ID Idx, INT Option )
|
|
|
|
|
{
|
|
|
|
|
/* Option fuer Verbindung setzen.
|
|
|
|
|
* Initial sind alle Optionen _nicht_ gesetzt. */
|
|
|
|
|
|
|
|
|
|
assert( Idx > NONE );
|
|
|
|
|
assert( Option != 0 );
|
|
|
|
|
|
|
|
|
|
My_Connections[Idx].options |= Option;
|
|
|
|
|
} /* Conn_SetOption */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
GLOBAL VOID
|
|
|
|
|
Conn_UnsetOption( CONN_ID Idx, INT Option )
|
|
|
|
|
{
|
|
|
|
|
/* Option fuer Verbindung loeschen */
|
|
|
|
|
|
|
|
|
|
assert( Idx > NONE );
|
|
|
|
|
assert( Option != 0 );
|
|
|
|
|
|
|
|
|
|
My_Connections[Idx].options &= ~Option;
|
|
|
|
|
} /* Conn_UnsetOption */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
GLOBAL INT
|
|
|
|
|
Conn_Options( CONN_ID Idx )
|
|
|
|
|
{
|
|
|
|
|
assert( Idx > NONE );
|
|
|
|
|
return My_Connections[Idx].options;
|
|
|
|
|
} /* Conn_Options */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
|
|
|
|
|
GLOBAL BOOLEAN
|
|
|
|
|
Conn_InitZip( CONN_ID Idx )
|
|
|
|
|
{
|
|
|
|
|
/* Kompression fuer Link initialisieren */
|
|
|
|
|
|
|
|
|
|
assert( Idx > NONE );
|
|
|
|
|
|
|
|
|
|
My_Connections[Idx].zip.in.avail_in = 0;
|
|
|
|
|
My_Connections[Idx].zip.in.total_in = 0;
|
|
|
|
|
My_Connections[Idx].zip.in.total_out = 0;
|
|
|
|
|
My_Connections[Idx].zip.in.zalloc = NULL;
|
|
|
|
|
My_Connections[Idx].zip.in.zfree = NULL;
|
|
|
|
|
My_Connections[Idx].zip.in.data_type = Z_ASCII;
|
|
|
|
|
|
|
|
|
|
if( inflateInit( &My_Connections[Idx].zip.in ) != Z_OK )
|
|
|
|
|
{
|
|
|
|
|
/* Fehler! */
|
|
|
|
|
Log( LOG_ALERT, "Can't initialize compression on connection %d (zlib inflate)!", Idx );
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
My_Connections[Idx].zip.out.total_in = 0;
|
|
|
|
|
My_Connections[Idx].zip.out.total_in = 0;
|
|
|
|
|
My_Connections[Idx].zip.out.zalloc = NULL;
|
|
|
|
|
My_Connections[Idx].zip.out.zfree = NULL;
|
|
|
|
|
My_Connections[Idx].zip.out.data_type = Z_ASCII;
|
|
|
|
|
|
|
|
|
|
if( deflateInit( &My_Connections[Idx].zip.out, Z_DEFAULT_COMPRESSION ) != Z_OK )
|
|
|
|
|
{
|
|
|
|
|
/* Fehler! */
|
|
|
|
|
Log( LOG_ALERT, "Can't initialize compression on connection %d (zlib deflate)!", Idx );
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
My_Connections[Idx].zip.bytes_in = My_Connections[Idx].bytes_in;
|
|
|
|
|
My_Connections[Idx].zip.bytes_out = My_Connections[Idx].bytes_out;
|
|
|
|
|
|
|
|
|
|
Log( LOG_INFO, "Enabled link compression (zlib) on connection %d.", Idx );
|
|
|
|
|
Conn_SetOption( Idx, CONN_ZIP );
|
|
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
|
} /* Conn_InitZip */
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
LOCAL BOOLEAN
|
|
|
|
|
Try_Write( CONN_ID Idx )
|
|
|
|
|
{
|
|
|
|
|
@@ -828,6 +976,12 @@ Handle_Write( CONN_ID Idx )
|
|
|
|
|
return Conn_WriteStr( Idx, "SERVER %s :%s", Conf_ServerName, Conf_ServerInfo );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
/* Schreibpuffer leer, aber noch Daten im Kompressionsbuffer?
|
|
|
|
|
* Dann muss dieser nun geflushed werden! */
|
|
|
|
|
if( My_Connections[Idx].wdatalen == 0 ) Zip_Flush( Idx );
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
assert( My_Connections[Idx].wdatalen > 0 );
|
|
|
|
|
|
|
|
|
|
/* Daten schreiben */
|
|
|
|
|
@@ -843,9 +997,6 @@ Handle_Write( CONN_ID Idx )
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Connection-Statistik aktualisieren */
|
|
|
|
|
My_Connections[Idx].bytes_out += len;
|
|
|
|
|
|
|
|
|
|
/* Puffer anpassen */
|
|
|
|
|
My_Connections[Idx].wdatalen -= len;
|
|
|
|
|
memmove( My_Connections[Idx].wbuf, My_Connections[Idx].wbuf + len, My_Connections[Idx].wdatalen );
|
|
|
|
|
@@ -1000,7 +1151,11 @@ Read_Request( CONN_ID Idx )
|
|
|
|
|
assert( Idx > NONE );
|
|
|
|
|
assert( My_Connections[Idx].sock > NONE );
|
|
|
|
|
|
|
|
|
|
if( READBUFFER_LEN - My_Connections[Idx].rdatalen - 2 < 0 )
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
if(( READBUFFER_LEN - My_Connections[Idx].rdatalen - 1 < 1 ) || ( ZREADBUFFER_LEN - My_Connections[Idx].zip.rdatalen < 1 ))
|
|
|
|
|
#else
|
|
|
|
|
if( READBUFFER_LEN - My_Connections[Idx].rdatalen - 1 < 1 )
|
|
|
|
|
#endif
|
|
|
|
|
{
|
|
|
|
|
/* Der Lesepuffer ist voll */
|
|
|
|
|
Log( LOG_ERR, "Read buffer overflow (connection %d): %d bytes!", Idx, My_Connections[Idx].rdatalen );
|
|
|
|
|
@@ -1008,7 +1163,18 @@ Read_Request( CONN_ID Idx )
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
len = recv( My_Connections[Idx].sock, My_Connections[Idx].rbuf + My_Connections[Idx].rdatalen, READBUFFER_LEN - My_Connections[Idx].rdatalen - 2, 0 );
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
if( My_Connections[Idx].options & CONN_ZIP )
|
|
|
|
|
{
|
|
|
|
|
len = recv( My_Connections[Idx].sock, My_Connections[Idx].zip.rbuf + My_Connections[Idx].zip.rdatalen, ( ZREADBUFFER_LEN - My_Connections[Idx].zip.rdatalen ), 0 );
|
|
|
|
|
if( len > 0 ) My_Connections[Idx].zip.rdatalen += len;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
|
|
|
|
len = recv( My_Connections[Idx].sock, My_Connections[Idx].rbuf + My_Connections[Idx].rdatalen, READBUFFER_LEN - My_Connections[Idx].rdatalen - 1, 0 );
|
|
|
|
|
if( len > 0 ) My_Connections[Idx].rdatalen += len;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if( len == 0 )
|
|
|
|
|
{
|
|
|
|
|
@@ -1032,11 +1198,6 @@ Read_Request( CONN_ID Idx )
|
|
|
|
|
/* Connection-Statistik aktualisieren */
|
|
|
|
|
My_Connections[Idx].bytes_in += len;
|
|
|
|
|
|
|
|
|
|
/* Lesebuffer updaten */
|
|
|
|
|
My_Connections[Idx].rdatalen += len;
|
|
|
|
|
assert( My_Connections[Idx].rdatalen < READBUFFER_LEN );
|
|
|
|
|
My_Connections[Idx].rbuf[My_Connections[Idx].rdatalen] = '\0';
|
|
|
|
|
|
|
|
|
|
/* Timestamp aktualisieren */
|
|
|
|
|
My_Connections[Idx].lastdata = time( NULL );
|
|
|
|
|
|
|
|
|
|
@@ -1056,56 +1217,73 @@ Handle_Buffer( CONN_ID Idx )
|
|
|
|
|
#endif
|
|
|
|
|
CHAR *ptr;
|
|
|
|
|
INT len, delta;
|
|
|
|
|
BOOLEAN action;
|
|
|
|
|
BOOLEAN action, result;
|
|
|
|
|
|
|
|
|
|
/* Eine komplette Anfrage muss mit CR+LF enden, vgl.
|
|
|
|
|
* RFC 2812. Haben wir eine? */
|
|
|
|
|
ptr = strstr( My_Connections[Idx].rbuf, "\r\n" );
|
|
|
|
|
|
|
|
|
|
if( ptr ) delta = 2;
|
|
|
|
|
#ifndef STRICT_RFC
|
|
|
|
|
else
|
|
|
|
|
result = FALSE;
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
/* Nicht RFC-konforme Anfrage mit nur CR oder LF? Leider
|
|
|
|
|
* machen soetwas viele Clients, u.a. "mIRC" :-( */
|
|
|
|
|
ptr1 = strchr( My_Connections[Idx].rbuf, '\r' );
|
|
|
|
|
ptr2 = strchr( My_Connections[Idx].rbuf, '\n' );
|
|
|
|
|
delta = 1;
|
|
|
|
|
if( ptr1 && ptr2 ) ptr = ptr1 > ptr2 ? ptr2 : ptr1;
|
|
|
|
|
else if( ptr1 ) ptr = ptr1;
|
|
|
|
|
else if( ptr2 ) ptr = ptr2;
|
|
|
|
|
}
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
/* ggf. noch unkomprimiete Daten weiter entpacken */
|
|
|
|
|
if( My_Connections[Idx].options & CONN_ZIP )
|
|
|
|
|
{
|
|
|
|
|
if( ! Unzip_Buffer( Idx )) return FALSE;
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
action = FALSE;
|
|
|
|
|
if( ptr )
|
|
|
|
|
{
|
|
|
|
|
/* Ende der Anfrage wurde gefunden */
|
|
|
|
|
*ptr = '\0';
|
|
|
|
|
len = ( ptr - My_Connections[Idx].rbuf ) + delta;
|
|
|
|
|
if( len > ( COMMAND_LEN - 1 ))
|
|
|
|
|
{
|
|
|
|
|
/* Eine Anfrage darf(!) nicht laenger als 512 Zeichen
|
|
|
|
|
* (incl. CR+LF!) werden; vgl. RFC 2812. Wenn soetwas
|
|
|
|
|
* empfangen wird, wird der Client disconnectiert. */
|
|
|
|
|
Log( LOG_ERR, "Request too long (connection %d): %d bytes (max. %d expected)!", Idx, My_Connections[Idx].rdatalen, COMMAND_LEN - 1 );
|
|
|
|
|
Conn_Close( Idx, NULL, "Request too long", TRUE );
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if( len > delta )
|
|
|
|
|
{
|
|
|
|
|
/* Es wurde ein Request gelesen */
|
|
|
|
|
if( ! Parse_Request( Idx, My_Connections[Idx].rbuf )) return FALSE;
|
|
|
|
|
else action = TRUE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Puffer anpassen */
|
|
|
|
|
My_Connections[Idx].rdatalen -= len;
|
|
|
|
|
memmove( My_Connections[Idx].rbuf, My_Connections[Idx].rbuf + len, My_Connections[Idx].rdatalen );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return action;
|
|
|
|
|
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
|
|
|
|
|
{
|
|
|
|
|
/* Nicht RFC-konforme Anfrage mit nur CR oder LF? Leider
|
|
|
|
|
* machen soetwas viele Clients, u.a. "mIRC" :-( */
|
|
|
|
|
ptr1 = strchr( My_Connections[Idx].rbuf, '\r' );
|
|
|
|
|
ptr2 = strchr( My_Connections[Idx].rbuf, '\n' );
|
|
|
|
|
delta = 1;
|
|
|
|
|
if( ptr1 && ptr2 ) ptr = ptr1 > ptr2 ? ptr2 : ptr1;
|
|
|
|
|
else if( ptr1 ) ptr = ptr1;
|
|
|
|
|
else if( ptr2 ) ptr = ptr2;
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
action = FALSE;
|
|
|
|
|
if( ptr )
|
|
|
|
|
{
|
|
|
|
|
/* Ende der Anfrage wurde gefunden */
|
|
|
|
|
*ptr = '\0';
|
|
|
|
|
len = ( ptr - My_Connections[Idx].rbuf ) + delta;
|
|
|
|
|
if( len > ( COMMAND_LEN - 1 ))
|
|
|
|
|
{
|
|
|
|
|
/* Eine Anfrage darf(!) nicht laenger als 512 Zeichen
|
|
|
|
|
* (incl. CR+LF!) werden; vgl. RFC 2812. Wenn soetwas
|
|
|
|
|
* empfangen wird, wird der Client disconnectiert. */
|
|
|
|
|
Log( LOG_ERR, "Request too long (connection %d): %d bytes (max. %d expected)!", Idx, My_Connections[Idx].rdatalen, COMMAND_LEN - 1 );
|
|
|
|
|
Conn_Close( Idx, NULL, "Request too long", TRUE );
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if( len > delta )
|
|
|
|
|
{
|
|
|
|
|
/* Es wurde ein Request gelesen */
|
|
|
|
|
if( ! Parse_Request( Idx, My_Connections[Idx].rbuf )) return FALSE;
|
|
|
|
|
else action = TRUE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Puffer anpassen */
|
|
|
|
|
My_Connections[Idx].rdatalen -= len;
|
|
|
|
|
memmove( My_Connections[Idx].rbuf, My_Connections[Idx].rbuf + len, My_Connections[Idx].rdatalen );
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if( action ) result = TRUE;
|
|
|
|
|
} while( action );
|
|
|
|
|
|
|
|
|
|
return result;
|
|
|
|
|
} /* Handle_Buffer */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@@ -1342,6 +1520,16 @@ Init_Conn_Struct( LONG Idx )
|
|
|
|
|
My_Connections[Idx].bytes_in = 0;
|
|
|
|
|
My_Connections[Idx].bytes_out = 0;
|
|
|
|
|
My_Connections[Idx].flag = 0;
|
|
|
|
|
My_Connections[Idx].options = 0;
|
|
|
|
|
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
My_Connections[Idx].zip.rbuf[0] = '\0';
|
|
|
|
|
My_Connections[Idx].zip.rdatalen = 0;
|
|
|
|
|
My_Connections[Idx].zip.wbuf[0] = '\0';
|
|
|
|
|
My_Connections[Idx].zip.wdatalen = 0;
|
|
|
|
|
My_Connections[Idx].zip.bytes_in = 0;
|
|
|
|
|
My_Connections[Idx].zip.bytes_out = 0;
|
|
|
|
|
#endif
|
|
|
|
|
} /* Init_Conn_Struct */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@@ -1437,4 +1625,115 @@ Read_Resolver_Result( INT r_fd )
|
|
|
|
|
} /* Read_Resolver_Result */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef USE_ZLIB
|
|
|
|
|
|
|
|
|
|
LOCAL BOOLEAN
|
|
|
|
|
Zip_Buffer( CONN_ID Idx, CHAR *Data, INT Len )
|
|
|
|
|
{
|
|
|
|
|
/* Daten zum Komprimieren im "Kompressions-Puffer" sammeln.
|
|
|
|
|
* Es wird TRUE bei Erfolg, sonst FALSE geliefert. */
|
|
|
|
|
|
|
|
|
|
assert( Idx > NONE );
|
|
|
|
|
assert( Data != NULL );
|
|
|
|
|
assert( Len > 0 );
|
|
|
|
|
|
|
|
|
|
/* Ist noch Platz im Kompressions-Puffer? */
|
|
|
|
|
if( ZWRITEBUFFER_LEN - My_Connections[Idx].zip.wdatalen < Len + 50 )
|
|
|
|
|
{
|
|
|
|
|
/* Nein! Puffer zunaechst leeren ...*/
|
|
|
|
|
if( ! Zip_Flush( Idx )) return FALSE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Daten kopieren */
|
|
|
|
|
memmove( My_Connections[Idx].zip.wbuf + My_Connections[Idx].zip.wdatalen, Data, Len );
|
|
|
|
|
My_Connections[Idx].zip.wdatalen += Len;
|
|
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
|
} /* Zip_Buffer */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
LOCAL BOOLEAN
|
|
|
|
|
Zip_Flush( CONN_ID Idx )
|
|
|
|
|
{
|
|
|
|
|
/* Daten komprimieren und in Schreibpuffer kopieren.
|
|
|
|
|
* Es wird TRUE bei Erfolg, sonst FALSE geliefert. */
|
|
|
|
|
|
|
|
|
|
INT result, out_len;
|
|
|
|
|
z_stream *out;
|
|
|
|
|
|
|
|
|
|
out = &My_Connections[Idx].zip.out;
|
|
|
|
|
|
|
|
|
|
out->next_in = My_Connections[Idx].zip.wbuf;
|
|
|
|
|
out->avail_in = My_Connections[Idx].zip.wdatalen;
|
|
|
|
|
out->next_out = My_Connections[Idx].wbuf + My_Connections[Idx].wdatalen;
|
|
|
|
|
out->avail_out = WRITEBUFFER_LEN - My_Connections[Idx].wdatalen;
|
|
|
|
|
|
|
|
|
|
result = deflate( out, Z_SYNC_FLUSH );
|
|
|
|
|
if(( result != Z_OK ) || ( out->avail_in > 0 ))
|
|
|
|
|
{
|
|
|
|
|
Log( LOG_ALERT, "Compression error: code %d!?", result );
|
|
|
|
|
Conn_Close( Idx, "Compression error!", NULL, FALSE );
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
out_len = WRITEBUFFER_LEN - My_Connections[Idx].wdatalen - out->avail_out;
|
|
|
|
|
My_Connections[Idx].wdatalen += out_len;
|
|
|
|
|
My_Connections[Idx].bytes_out += out_len;
|
|
|
|
|
My_Connections[Idx].zip.bytes_out += My_Connections[Idx].zip.wdatalen;
|
|
|
|
|
My_Connections[Idx].zip.wdatalen = 0;
|
|
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
|
} /* Zip_Flush */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
LOCAL BOOLEAN
|
|
|
|
|
Unzip_Buffer( CONN_ID Idx )
|
|
|
|
|
{
|
|
|
|
|
/* Daten entpacken und in Lesepuffer kopieren. Bei Fehlern
|
|
|
|
|
* wird FALSE geliefert, ansonsten TRUE. Der Fall, dass keine
|
|
|
|
|
* Daten mehr zu entpacken sind, ist _kein_ Fehler! */
|
|
|
|
|
|
|
|
|
|
INT result, in_len, out_len;
|
|
|
|
|
z_stream *in;
|
|
|
|
|
|
|
|
|
|
assert( Idx > NONE );
|
|
|
|
|
|
|
|
|
|
if( My_Connections[Idx].zip.rdatalen <= 0 ) return TRUE;
|
|
|
|
|
|
|
|
|
|
in = &My_Connections[Idx].zip.in;
|
|
|
|
|
|
|
|
|
|
in->next_in = My_Connections[Idx].zip.rbuf;
|
|
|
|
|
in->avail_in = My_Connections[Idx].zip.rdatalen;
|
|
|
|
|
in->next_out = My_Connections[Idx].rbuf + My_Connections[Idx].rdatalen;
|
|
|
|
|
in->avail_out = READBUFFER_LEN - My_Connections[Idx].rdatalen - 1;
|
|
|
|
|
|
|
|
|
|
result = inflate( in, Z_SYNC_FLUSH );
|
|
|
|
|
if( result != Z_OK )
|
|
|
|
|
{
|
|
|
|
|
Log( LOG_ALERT, "Decompression error: code %d!?", result );
|
|
|
|
|
Conn_Close( Idx, "Decompression error!", NULL, FALSE );
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
in_len = My_Connections[Idx].zip.rdatalen - in->avail_in;
|
|
|
|
|
out_len = READBUFFER_LEN - My_Connections[Idx].rdatalen - 1 - in->avail_out;
|
|
|
|
|
My_Connections[Idx].rdatalen += out_len;
|
|
|
|
|
|
|
|
|
|
if( in->avail_in > 0 )
|
|
|
|
|
{
|
|
|
|
|
/* es konnten nicht alle Daten entpackt werden, vermutlich war
|
|
|
|
|
* im Ziel-Puffer kein Platz mehr. Umkopieren ... */
|
|
|
|
|
My_Connections[Idx].zip.rdatalen -= in_len;
|
|
|
|
|
memmove( My_Connections[Idx].zip.rbuf, My_Connections[Idx].zip.rbuf + in_len, My_Connections[Idx].zip.rdatalen );
|
|
|
|
|
}
|
|
|
|
|
else My_Connections[Idx].zip.rdatalen = 0;
|
|
|
|
|
My_Connections[Idx].zip.bytes_in += out_len;
|
|
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
|
} /* Unzip_Buffer */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* -eof- */
|
|
|
|
|
|