//dstream<<"z.avail_in="<<z.avail_in<<std::endl;
//dstream<<"fail="<<is.fail()<<" bad="<<is.bad()<<std::endl;
// Unget all the data that inflate didn't take
//dstream<<"z.avail_in="<<z.avail_in<<std::endl;
//dstream<<"fail="<<is.fail()<<" bad="<<is.bad()<<std::endl;
// Unget all the data that inflate didn't take