void *get_network_physics_buffer(
	long *physics_length)
{
	void *data= get_flat_data(PhysicsFileSpec, false, 0);
	
	if(data)
	{
		*physics_length= get_flat_data_length(data);
	} else {
		*physics_length= 0;
	}
	
	return data;
}
void *get_network_physics_buffer(
	int32 *physics_length)
{
	if (physics_file_is_m1())
	{
		bool success = false;
		uint8 *data = NULL;
		OpenedFile PhysicsFile;
		if (PhysicsFileSpec.Open(PhysicsFile) &&
		    PhysicsFile.GetLength(*physics_length))
		{
			data = (uint8 *)malloc(*physics_length + 4);
            SDL_RWops *ops = SDL_RWFromMem(data, *physics_length + 4);
            success = SDL_WriteBE32(ops, uint32(M1_PHYSICS_MAGIC_COOKIE));
            if (success)
                success = SDL_WriteBE32(ops, uint32(*physics_length));
            SDL_RWclose(ops);
            if (success)
                success = PhysicsFile.Read(*physics_length, &data[8]);
			if (!success)
				free(data);
		}
		if (!success)
		{
			*physics_length = 0;
			return NULL;
		}
		return data;
	}
	
	short SavedType, SavedError = get_game_error(&SavedType);
	void *data= get_flat_data(PhysicsFileSpec, false, 0);
	set_game_error(SavedType, SavedError);
	
	if(data)
	{
		*physics_length= get_flat_data_length(data);
	} else {
		*physics_length= 0;
	}
	
	return data;
}