https://github.com/shadowsocks/shadowsocks-android/commit/cc840c9fddb3f4f6677005de18f1fcb387b84064#diff-e089fe63dcb3674c0a1e459a95508e3e
https://github.com/shadowsocks/shadowsocks-android/commit/cc840c9fddb3f4f6677005de18f1fcb387b84064#diff-e089fe63dcb3674c0a1e459a95508e3e