static void discard_receive_data(int f_in, struct file_struct *file)
{
	receive_data(f_in, NULL, -1, 0, NULL, -1, file, 0);
}
static void discard_receive_data(int f_in, struct file_struct *file)
{
	receive_data(f_in, NULL, -1, 0, NULL, -1, file, 0);
}