*
 */
static struct cackey_tlv_entity *cackey_read_tlv(struct cackey_slot *slot) {
	struct cackey_tlv_entity *curr_entity, *root = NULL, *last = NULL;
	unsigned char tlen_buf[2], tval_buf[1024], *tval;
	unsigned char vlen_buf[2], vval_buf[8192], *vval;
	unsigned char *tmpbuf;
	unsigned long tmpbuflen;
	ssize_t tlen, vlen;
	ssize_t read_ret;
	size_t offset_t = 0, offset_v = 0;
	unsigned char tag;
	size_t length;
#ifdef HAVE_LIBZ

	int uncompress_ret;
#endif

	CACKEY_DEBUG_PRINTF("Called.");

	read_ret = cackey_read_buffer(slot, tlen_buf, sizeof(tlen_buf), 1, offset_t);
	if (read_ret != sizeof(tlen_buf)) {

				curr_entity->value = tmpbuf;
				curr_entity->_next = NULL;

				break;
			case GSCIS_TAG_CERTIFICATE:
				curr_entity = malloc(sizeof(*curr_entity));

#ifdef HAVE_LIBZ
				tmpbuflen = length * 2;
				tmpbuf = malloc(tmpbuflen);


				uncompress_ret = uncompress(tmpbuf, &tmpbuflen, vval, length);
				if (uncompress_ret != Z_OK) {
					CACKEY_DEBUG_PRINTF("Failed to decompress, uncompress() returned %i -- resorting to direct copy", uncompress_ret);

					tmpbuflen = length;
					memcpy(tmpbuf, vval, length);
				}