UnitaryTests/SCardBeginTransaction_ExclusiceMode.py
#! /usr/bin/env python3
# SCardBeginTransaction_ExclusiceMode.py : Unitary test for SCardDisconnect()
# Copyright (C) 2011 Ludovic Rousseau
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, see <http://www.gnu.org/licenses/>.
# Alioth bug [#312960] SCardDisconnect when other context has transaction
# fixed in revisions 5572 and 5574
from smartcard.scard import *
from smartcard.pcsc.PCSCExceptions import *
hresult, hcontext1 = SCardEstablishContext(SCARD_SCOPE_USER)
if hresult != SCARD_S_SUCCESS:
raise EstablishContextException(hresult)
hresult, readers = SCardListReaders(hcontext1, [])
if hresult != SCARD_S_SUCCESS:
raise ListReadersException(hresult)
print('PC/SC Readers:', readers)
reader = readers[0]
print("Using reader:", reader)
hresult, hcontext2 = SCardEstablishContext(SCARD_SCOPE_USER)
if hresult != SCARD_S_SUCCESS:
raise EstablishContextException(hresult)
hresult, hcard1, dwActiveProtocol = SCardConnect(hcontext1, reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_ANY)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
hresult, hcard2, dwActiveProtocol = SCardConnect(hcontext1, reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_ANY)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
hresult = SCardBeginTransaction(hcard1)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
# Disconnect hcard2 before the end of transaction with hcard1
hresult = SCardDisconnect(hcard2, SCARD_LEAVE_CARD)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
hresult = SCardEndTransaction(hcard1, SCARD_LEAVE_CARD)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
hresult = SCardDisconnect(hcard1, SCARD_LEAVE_CARD)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
# Connect should not return an error since hcard1 and hcard2 are now
# disconnected
hresult, hcard1, dwActiveProtocol = SCardConnect(hcontext1, reader, SCARD_SHARE_EXCLUSIVE, SCARD_PROTOCOL_ANY)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
hresult = SCardDisconnect(hcard1, SCARD_LEAVE_CARD)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
hresult = SCardReleaseContext(hcontext1)
if hresult != SCARD_S_SUCCESS:
raise ReleaseContextException(hresult)