Z_BUF_ERROR
if (unlikely(ret != Z_OK && ret != Z_BUF_ERROR)) {
if (zerr == Z_BUF_ERROR && stream.avail_in == 0)
if (strm->avail_out == 0) return Z_BUF_ERROR;
return Z_BUF_ERROR;
return Z_BUF_ERROR;
ret = Z_BUF_ERROR;