diff -r d983df942a05 -r 6afe9d27430a src/network/core/tcp.h
--- a/src/network/core/tcp.h	Fri Jan 12 18:32:39 2007 +0000
+++ b/src/network/core/tcp.h	Fri Jan 12 20:19:49 2007 +0000
@@ -6,6 +6,7 @@
 #ifdef ENABLE_NETWORK
 
 #include "os_abstraction.h"
+#include "core.h"
 #include "packet.h"
 
 /**
@@ -54,9 +55,54 @@
 	PACKET_END                   ///< Must ALWAYS be on the end of this list!! (period)
 };
 
-void NetworkSend_Packet(Packet *packet, NetworkClientState *cs);
-Packet *NetworkRecv_Packet(NetworkClientState *cs, NetworkRecvStatus *status);
-bool NetworkSend_Packets(NetworkClientState *cs);
+typedef struct CommandPacket {
+	struct CommandPacket *next;
+	PlayerByte player; ///< player that is executing the command
+	uint32 cmd;        ///< command being executed
+	uint32 p1;         ///< parameter p1
+	uint32 p2;         ///< parameter p2
+	TileIndex tile;    ///< tile command being executed on
+	char text[80];
+	uint32 frame;      ///< the frame in which this packet is executed
+	byte callback;     ///< any callback function executed upon successful completion of the command
+} CommandPacket;
+
+typedef enum {
+	STATUS_INACTIVE,   ///< The client is not connected nor active
+	STATUS_AUTH,       ///< The client is authorized
+	STATUS_MAP_WAIT,   ///< The client is waiting as someone else is downloading the map
+	STATUS_MAP,        ///< The client is downloading the map
+	STATUS_DONE_MAP,   ///< The client has downloaded the map
+	STATUS_PRE_ACTIVE, ///< The client is catching up the delayed frames
+	STATUS_ACTIVE,     ///< The client is an active player in the game
+} ClientStatus;
+
+/** Base socket handler for all TCP sockets */
+class NetworkTCPSocketHandler : public NetworkSocketHandler {
+/* TODO: rewrite into a proper class */
+public:
+	uint16 index;
+	uint32 last_frame;
+	uint32 last_frame_server;
+	byte lag_test; // This byte is used for lag-testing the client
+
+	ClientStatus status;
+	bool writable; // is client ready to write to?
+
+	Packet *packet_queue; // Packets that are awaiting delivery
+	Packet *packet_recv; // Partially received packet
+
+	CommandPacket *command_queue; // The command-queue awaiting delivery
+
+	NetworkRecvStatus CloseConnection();
+	void Initialize();
+};
+
+
+
+void NetworkSend_Packet(Packet *packet, NetworkTCPSocketHandler *cs);
+Packet *NetworkRecv_Packet(NetworkTCPSocketHandler *cs, NetworkRecvStatus *status);
+bool NetworkSend_Packets(NetworkTCPSocketHandler *cs);
 
 #endif /* ENABLE_NETWORK */