fixed file descriptor leak (reported by: SUDOH Yoshiaki<sudo@iij.ad.jp>)
fixed file descriptor leak
(reported by: SUDOH Yoshiaki<sudo@iij.ad.jp>)

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame