2011/8/26 Viktor Tarasov <viktor.tara...@gmail.com>:
> Le 26/08/2011 16:40, Ludovic Rousseau a écrit :
>>
>> 2011/8/25 Viktor Tarasov<viktor.tara...@gmail.com>:
>>>
>>> In the OpenSC context the detached reader/token is unknown before the
>>> SCardGetStatusChange() called.
>>> In windows, XP or Vista, the ScardGetStatusChange called for unknown
>>> reader
>>> returns SCARD_E_NO_READERS_AVAILABLE.
>>>
>>> The last revision of pcsc-lite, in such a case, returns the
>>> SCARD_E_UNKNOWN_READER, which seems to be more appropriate to the
>>> situation.
>>
>> This is very strange. I do not have that on my Windows XP SP 3.
>> I compile and run the following program:
>>
>> // pcsc.cpp : main project file.
>>
>> #include "stdafx.h"
>> #include<stdio.h>
>> #include<winscard.h>
>>
>> using namespace System;
>>
>> int main(array<System::String ^> ^args)
>> {
>> LONG rv;
>> SCARDCONTEXT context;
>> SCARD_READERSTATE readers[2];
>>
>> rv = SCardEstablishContext(SCARD_SCOPE_SYSTEM, NULL,
>> NULL,&context);
>> printf("%08X\n", rv);
>>
>> readers[0].szReader = L"foo";
>> readers[1].szReader = L"bar";
>> rv = SCardGetStatusChange(context, 100, readers, 2);
>> printf("%08X\n", rv);
>>
>> rv = SCardReleaseContext(context);
>> printf("%08X\n", rv);
>>
>> return 0;
>> }
>>
>> And I get as output:
>> 00000000
>> 80100009
>> 00000000
>>
>> 80100009 is SCARD_E_UNKNOWN_READER.
>> So I do not get SCARD_E_NO_READERS_AVAILABLE as you do.
>
> Ok,
> you have the SCARD_E_UNKNOWN_READER in the context of your test on 'your'
> Windows,
> I have SCARD_E_NO_READERS_AVAILABLE in the context of OpenSC on 'my' Windows
> .
>
> On 'my' Windows your Python test gives 'SCARD_E_NO_READERS_AVAILABLE' .
>
> I have no intention to perceive mysteries of Windows -- in any case both
> these errors has to be treated by OpenSC (as well as different behavior of
> the different pcsc-lite versions). And it's not complicated, because both
> these SCARD_E errors are translated by reader-pcsc.c into the same error
> SC_ERROR 'NO_READERS_FOUND'.
>
> For the OpenSC there is no difference between two SCARD_E errors and this
> difference has no impact onto the proposed solution for the bug with the
> detached token .
> Have you any comments for the proposed solution ?
No
--
Dr. Ludovic Rousseau
_______________________________________________
opensc-devel mailing list
opensc-devel@lists.opensc-project.org
http://www.opensc-project.org/mailman/listinfo/opensc-devel
