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scd: Fix removal of unplugged usb readers on Windows.

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* scd/apdu.c (pcsc_error_to_sw): map PCSC_E_NO_SERVICE and
PCSC_E_SERVICE_STOPPED to the internal SW_HOST_NO_READER error code.

--

Signed-off-by: Daniel Hoffend <dh@dotlan.net>
GnuPG-bug-id: 2167

In Windows 8 (and later), PC/SC service only runs when reader/token is
plugged in.  After its removal, it returns PCSC_E_NO_SERVICE error.
This error should be handled as no reader.  This comment is by gniibe.

(backport of commit d1a97585c5e73fbc7d4cf90e38f76ffc5aea305f)
This commit is contained in:
Daniel Hoffend 2015-12-07 00:13:59 +01:00 committed by NIIBE Yutaka
parent 520c85ed94
commit 904fbdccd6
1 changed files with 3 additions and 0 deletions
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3
scd/apdu.c
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@ -224,6 +224,7 @@ static char (* DLSTDCALL CT_close) (unsigned short ctn);
#define PCSC_E_NOT_TRANSACTED 0x80100016
#define PCSC_E_READER_UNAVAILABLE 0x80100017
#define PCSC_E_NO_SERVICE 0x8010001D
#define PCSC_E_SERVICE_STOPPED 0x8010001E
#define PCSC_W_REMOVED_CARD 0x80100069
/* Fix pcsc-lite ABI incompatibilty. */
@ -873,6 +874,8 @@ pcsc_error_to_sw (long ec)
case PCSC_E_CANCELLED: rc = SW_HOST_ABORTED; break;
case PCSC_E_NO_MEMORY: rc = SW_HOST_OUT_OF_CORE; break;
case PCSC_E_TIMEOUT: rc = SW_HOST_CARD_IO_ERROR; break;
case PCSC_E_NO_SERVICE:
case PCSC_E_SERVICE_STOPPED:
case PCSC_E_UNKNOWN_READER: rc = SW_HOST_NO_READER; break;
case PCSC_E_SHARING_VIOLATION: rc = SW_HOST_LOCKING_FAILED; break;
case PCSC_E_NO_SMARTCARD: rc = SW_HOST_NO_CARD; break;