FR_T_NONE
fr->fr_type = FR_T_NONE;
if (fr->fr_type == FR_T_NONE) {
if (fr->fr_type != FR_T_NONE) {
if ((fr->fr_type != FR_T_IPF) && (fr->fr_type != FR_T_NONE))
case FR_T_NONE :
case FR_T_NONE :
fr->fr_type = FR_T_NONE;
fr->fr_type = FR_T_NONE;