free(tmpbuf_s);
				}
			}

			/* End transaction */
			cackey_end_transaction(slot);

			if (respcode == 0x6982 || respcode == 0x6e00) {
				CACKEY_DEBUG_PRINTF("Security status not satisified.  Returning NEEDLOGIN");

				cackey_mark_slot_reset(slot);

				return(CACKEY_PCSC_E_NEEDLOGIN);
			}

	}

	CACKEY_DEBUG_PRINTF("Returning CKR_FUNCTION_NOT_SUPPORTED (%i)", CKR_FUNCTION_NOT_SUPPORTED);

	return(CKR_FUNCTION_NOT_SUPPORTED);
}

CK_DEFINE_FUNCTION(CK_RV, _C_LoginMutexArg)(CK_SESSION_HANDLE hSession, CK_USER_TYPE userType, CK_UTF8CHAR_PTR pPin, CK_ULONG ulPinLen, int lock_mutex) {
	CK_SLOT_ID slotID;
	FILE *pinfd;
	char *pincmd, pinbuf[64], *fgets_ret;
	int mutex_retval;
	int tries_remaining;
	int login_ret;
	int pclose_ret;

	if (userType != CKU_USER) {
		CACKEY_DEBUG_PRINTF("Error.  We only support USER mode, asked for %lu mode.", (unsigned long) userType)

		return(CKR_USER_TYPE_INVALID);
	}

	if (lock_mutex) {
		mutex_retval = cackey_mutex_lock(cackey_biglock);
		if (mutex_retval != 0) {
			CACKEY_DEBUG_PRINTF("Error.  Locking failed.");

			return(CKR_GENERAL_ERROR);
		}
	}

	if (!cackey_sessions[hSession].active) {
		if (lock_mutex) {
			cackey_mutex_unlock(cackey_biglock);
		}

		CACKEY_DEBUG_PRINTF("Error.  Session not active.");
		
		return(CKR_SESSION_HANDLE_INVALID);
	}

	slotID = cackey_sessions[hSession].slotID;

	if (slotID < 0 || slotID >= (sizeof(cackey_slots) / sizeof(cackey_slots[0]))) {
		CACKEY_DEBUG_PRINTF("Error. Invalid slot requested (%lu), outside of valid range", slotID);

		if (lock_mutex) {
			cackey_mutex_unlock(cackey_biglock);
		}

		return(CKR_GENERAL_ERROR);
	}

	if (cackey_slots[slotID].active == 0) {
		CACKEY_DEBUG_PRINTF("Error. Invalid slot requested (%lu), slot not currently active", slotID);

		if (lock_mutex) {
			cackey_mutex_unlock(cackey_biglock);
		}

		return(CKR_GENERAL_ERROR);
	}

	pincmd = cackey_pin_command;
	if (pincmd != NULL) {
		CACKEY_DEBUG_PRINTF("CACKEY_PIN_COMMAND = %s", pincmd);

		if (pPin != NULL) {
			CACKEY_DEBUG_PRINTF("Protected authentication path in effect and PIN provided !?");
		}

		pinfd = popen(pincmd, "r");
		if (pinfd == NULL) {
			CACKEY_DEBUG_PRINTF("Error.  %s: Unable to run", pincmd);

			if (lock_mutex) {
				cackey_mutex_unlock(cackey_biglock);
			}

			CACKEY_DEBUG_PRINTF("Returning CKR_PIN_INCORRECT (%i)", (int) CKR_PIN_INCORRECT);

			return(CKR_PIN_INCORRECT);
		}

		fgets_ret = fgets(pinbuf, sizeof(pinbuf), pinfd);
		if (fgets_ret == NULL) {
			pinbuf[0] = '\0';
		}

		pclose_ret = pclose(pinfd);
		if (pclose_ret != 0) {
			CACKEY_DEBUG_PRINTF("Error.  %s: exited with non-zero status of %i", pincmd, pclose_ret);

			if (lock_mutex) {
				cackey_mutex_unlock(cackey_biglock);
			}

			CACKEY_DEBUG_PRINTF("Returning CKR_PIN_INCORRECT (%i)", (int) CKR_PIN_INCORRECT);

			return(CKR_PIN_INCORRECT);
		}

		if (strlen(pinbuf) < 1) {
			CACKEY_DEBUG_PRINTF("Error.  %s: returned no data", pincmd);

			if (lock_mutex) {
				cackey_mutex_unlock(cackey_biglock);
			}

			CACKEY_DEBUG_PRINTF("Returning CKR_PIN_INCORRECT (%i)", (int) CKR_PIN_INCORRECT);

			return(CKR_PIN_INCORRECT);
		}

		if (pinbuf[strlen(pinbuf) - 1] == '\n') {
			pinbuf[strlen(pinbuf) - 1] = '\0';
		}

		pPin = (CK_UTF8CHAR_PTR) pinbuf;
		ulPinLen = strlen(pinbuf);
	}

	login_ret = cackey_login(&cackey_slots[slotID], pPin, ulPinLen, &tries_remaining);
	if (login_ret != CACKEY_PCSC_S_OK) {
		if (lock_mutex) {
			cackey_mutex_unlock(cackey_biglock);
		}

		if (login_ret == CACKEY_PCSC_E_LOCKED) {
			CACKEY_DEBUG_PRINTF("Error.  Token is locked.");

			cackey_slots[slotID].token_flags |= CKF_USER_PIN_LOCKED;

			CACKEY_DEBUG_PRINTF("Returning CKR_PIN_LOCKED (%i)", (int) CKR_PIN_LOCKED);

		return(CKR_GENERAL_ERROR);
	}

	cackey_slots[slotID].token_flags &= ~(CKF_USER_PIN_LOCKED | CKF_USER_PIN_COUNT_LOW | CKF_LOGIN_REQUIRED | CKF_USER_PIN_FINAL_TRY);

	cackey_sessions[hSession].state = CKS_RO_USER_FUNCTIONS;

	if (lock_mutex) {
		mutex_retval = cackey_mutex_unlock(cackey_biglock);
		if (mutex_retval != 0) {
			CACKEY_DEBUG_PRINTF("Error.  Unlocking failed.");

			return(CKR_GENERAL_ERROR);
		}
	}

	CACKEY_DEBUG_PRINTF("Returning CKR_OK (%i)", CKR_OK);

	return(CKR_OK);
}

CK_DEFINE_FUNCTION(CK_RV, C_Login)(CK_SESSION_HANDLE hSession, CK_USER_TYPE userType, CK_UTF8CHAR_PTR pPin, CK_ULONG ulPinLen) {
	return(_C_LoginMutexArg(hSession, userType, pPin, ulPinLen, 1));
}

CK_DEFINE_FUNCTION(CK_RV, C_Logout)(CK_SESSION_HANDLE hSession) {
	CK_SLOT_ID slotID;
	int mutex_retval;

	CACKEY_DEBUG_PRINTF("Called.");

	switch (cackey_sessions[hSession].decrypt_mechanism) {
		case CKM_RSA_PKCS:
			/* Ask card to decrypt */
			buflen = cackey_signdecrypt(&cackey_slots[slotID], cackey_sessions[hSession].decrypt_identity, pEncryptedPart, ulEncryptedPartLen, buf, sizeof(buf), 0, 1);

			if (buflen == CACKEY_PCSC_E_NEEDLOGIN && cackey_pin_command != NULL) {
				if (_C_LoginMutexArg(hSession, CKU_USER, NULL, 0, 0) == CKR_OK) {
					buflen = cackey_signdecrypt(&cackey_slots[slotID], cackey_sessions[hSession].decrypt_identity, pEncryptedPart, ulEncryptedPartLen, buf, sizeof(buf), 0, 1);
				}
			}

			if (buflen < 0) {
				/* Decryption failed. */
				if (buflen == CACKEY_PCSC_E_NEEDLOGIN) {

	switch (cackey_sessions[hSession].sign_mechanism) {
		case CKM_RSA_PKCS:
			/* Ask card to sign */
			CACKEY_DEBUG_PRINTF("Asking to sign from identity %p in session %lu", (void *) cackey_sessions[hSession].sign_identity, (unsigned long) hSession);
			sigbuflen = cackey_signdecrypt(&cackey_slots[slotID], cackey_sessions[hSession].sign_identity, cackey_sessions[hSession].sign_buf, cackey_sessions[hSession].sign_bufused, sigbuf, sizeof(sigbuf), 1, 0);

			if (sigbuflen == CACKEY_PCSC_E_NEEDLOGIN && cackey_pin_command != NULL) {
				if (_C_LoginMutexArg(hSession, CKU_USER, NULL, 0, 0) == CKR_OK) {
					sigbuflen = cackey_signdecrypt(&cackey_slots[slotID], cackey_sessions[hSession].sign_identity, cackey_sessions[hSession].sign_buf, cackey_sessions[hSession].sign_bufused, sigbuf, sizeof(sigbuf), 1, 0);
				}
			}

			if (sigbuflen < 0) {
				/* Signing failed. */
				if (sigbuflen == CACKEY_PCSC_E_NEEDLOGIN) {