struct bencode_item {
	bencode_type_t type;
	struct iovec iov[2];	/* when decoding, iov[1] contains the contents of a string object */
	unsigned int iov_cnt;
	unsigned int str_len;	/* length of the whole ENCODED object. NOT the length of a byte string */
	long long int value;	/* when decoding an integer, contains the value; otherwise used internally */
	bencode_item_t *parent, *child, *last_child, *sibling;
	bencode_buffer_t *buffer;
	char __buf[0];
};