static cackey_ret cackey_select_applet(struct cackey_slot *slot, unsigned char *aid, size_t aid_len) {
	int send_ret;

	CACKEY_DEBUG_PRINTF("Called.");

	CACKEY_DEBUG_PRINTBUF("Selecting applet:", aid, aid_len);

	send_ret = cackey_send_apdu(slot, GSCIS_CLASS_ISO7816, GSCIS_INSTR_SELECT, GSCIS_PARAM_SELECT_APPLET, 0x0C, aid_len, aid, 0x00, NULL, NULL, NULL);
	send_ret = cackey_send_apdu(slot, GSCIS_CLASS_ISO7816, GSCIS_INSTR_SELECT, GSCIS_PARAM_SELECT_APPLET, 0x00, aid_len, aid, 0x00, NULL, NULL, NULL);
	if (send_ret != CACKEY_PCSC_S_OK) {
		CACKEY_DEBUG_PRINTF("Failed to open applet, returning in failure");

		return(CACKEY_PCSC_E_GENERIC);
	}

	CACKEY_DEBUG_PRINTF("Successfully selected file");