diff --git a/src/network/core/packet.h b/src/network/core/packet.h
--- a/src/network/core/packet.h
+++ b/src/network/core/packet.h
@@ -63,6 +63,7 @@ public:
 	/* Sending/writing of packets */
 	void PrepareToSend();
 
+	bool CanWriteToPacket(size_t bytes_to_write);
 	void Send_bool  (bool   data);
 	void Send_uint8 (uint8  data);
 	void Send_uint16(uint16 data);
@@ -75,7 +76,7 @@ public:
 	bool ParsePacketSize();
 	void PrepareToRead();
 
-	bool   CanReadFromPacket (uint bytes_to_read);
+	bool   CanReadFromPacket(size_t bytes_to_read, bool close_connection = false);
 	bool   Recv_bool  ();
 	uint8  Recv_uint8 ();
 	uint16 Recv_uint16();