libwinpr/smartcard/smartcard.c

/**
 * WinPR: Windows Portable Runtime
 * Smart Card API
 *
 * Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
 * Copyright 2020 Armin Novak <armin.novak@thincast.com>
 * Copyright 2020 Thincast Technologies GmbH
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <winpr/crt.h>
#include <winpr/library.h>
#include <winpr/smartcard.h>
#include <winpr/synch.h>
#include <winpr/wlog.h>

#include "../log.h"

#include "smartcard.h"

#include "smartcard_inspect.h"

static INIT_ONCE g_Initialized = INIT_ONCE_STATIC_INIT;
static const SCardApiFunctionTable* g_SCardApi = NULL;

#define TAG WINPR_TAG("smartcard")

#define xstr(s) str(s)
#define str(s) #s

#define SCARDAPI_STUB_CALL_LONG(_name, ...)                                              \
	InitOnceExecuteOnce(&g_Initialized, InitializeSCardApiStubs, NULL, NULL);            \
	if (!g_SCardApi || !g_SCardApi->pfn##_name)                                          \
	{                                                                                    \
		WLog_DBG(TAG, "Missing function pointer g_SCardApi=%p->" xstr(pfn##_name) "=%p", \
		         g_SCardApi, g_SCardApi ? g_SCardApi->pfn##_name : NULL);                \
		return SCARD_E_NO_SERVICE;                                                       \
	}                                                                                    \
	return g_SCardApi->pfn##_name(__VA_ARGS__)

#define SCARDAPI_STUB_CALL_HANDLE(_name, ...)                                 \
	InitOnceExecuteOnce(&g_Initialized, InitializeSCardApiStubs, NULL, NULL); \
	if (!g_SCardApi || !g_SCardApi->pfn##_name)                               \
		return NULL;                                                          \
	return g_SCardApi->pfn##_name(__VA_ARGS__)

#define SCARDAPI_STUB_CALL_VOID(_name, ...)                                   \
	InitOnceExecuteOnce(&g_Initialized, InitializeSCardApiStubs, NULL, NULL); \
	if (!g_SCardApi || !g_SCardApi->pfn##_name)                               \
		return;                                                               \
	g_SCardApi->pfn##_name(__VA_ARGS__)

/**
 * Standard Windows Smart Card API
 */

const SCARD_IO_REQUEST g_rgSCardT0Pci = { SCARD_PROTOCOL_T0, 8 };
const SCARD_IO_REQUEST g_rgSCardT1Pci = { SCARD_PROTOCOL_T1, 8 };
const SCARD_IO_REQUEST g_rgSCardRawPci = { SCARD_PROTOCOL_RAW, 8 };

static BOOL CALLBACK InitializeSCardApiStubs(PINIT_ONCE once, PVOID param, PVOID* context)
{
#ifndef _WIN32

	if (PCSC_InitializeSCardApi() >= 0)
		g_SCardApi = PCSC_GetSCardApiFunctionTable();

#else

	if (WinSCard_InitializeSCardApi() >= 0)
		g_SCardApi = WinSCard_GetSCardApiFunctionTable();

#endif
#ifdef WITH_SMARTCARD_INSPECT
	g_SCardApi = Inspect_RegisterSCardApi(g_SCardApi);
#endif
	return TRUE;
}

WINSCARDAPI LONG WINAPI SCardEstablishContext(DWORD dwScope, LPCVOID pvReserved1,
                                              LPCVOID pvReserved2, LPSCARDCONTEXT phContext)
{
	SCARDAPI_STUB_CALL_LONG(SCardEstablishContext, dwScope, pvReserved1, pvReserved2, phContext);
}

WINSCARDAPI LONG WINAPI SCardReleaseContext(SCARDCONTEXT hContext)
{
	SCARDAPI_STUB_CALL_LONG(SCardReleaseContext, hContext);
}

WINSCARDAPI LONG WINAPI SCardIsValidContext(SCARDCONTEXT hContext)
{
	SCARDAPI_STUB_CALL_LONG(SCardIsValidContext, hContext);
}

WINSCARDAPI LONG WINAPI SCardListReaderGroupsA(SCARDCONTEXT hContext, LPSTR mszGroups,
                                               LPDWORD pcchGroups)
{
	SCARDAPI_STUB_CALL_LONG(SCardListReaderGroupsA, hContext, mszGroups, pcchGroups);
}

WINSCARDAPI LONG WINAPI SCardListReaderGroupsW(SCARDCONTEXT hContext, LPWSTR mszGroups,
                                               LPDWORD pcchGroups)
{
	SCARDAPI_STUB_CALL_LONG(SCardListReaderGroupsW, hContext, mszGroups, pcchGroups);
}

WINSCARDAPI LONG WINAPI SCardListReadersA(SCARDCONTEXT hContext, LPCSTR mszGroups, LPSTR mszReaders,
                                          LPDWORD pcchReaders)
{
	SCARDAPI_STUB_CALL_LONG(SCardListReadersA, hContext, mszGroups, mszReaders, pcchReaders);
}

WINSCARDAPI LONG WINAPI SCardListReadersW(SCARDCONTEXT hContext, LPCWSTR mszGroups,
                                          LPWSTR mszReaders, LPDWORD pcchReaders)
{
	SCARDAPI_STUB_CALL_LONG(SCardListReadersW, hContext, mszGroups, mszReaders, pcchReaders);
}

WINSCARDAPI LONG WINAPI SCardListCardsA(SCARDCONTEXT hContext, LPCBYTE pbAtr,
                                        LPCGUID rgquidInterfaces, DWORD cguidInterfaceCount,
                                        CHAR* mszCards, LPDWORD pcchCards)
{
	SCARDAPI_STUB_CALL_LONG(SCardListCardsA, hContext, pbAtr, rgquidInterfaces, cguidInterfaceCount,
	                        mszCards, pcchCards);
}

WINSCARDAPI LONG WINAPI SCardListCardsW(SCARDCONTEXT hContext, LPCBYTE pbAtr,
                                        LPCGUID rgquidInterfaces, DWORD cguidInterfaceCount,
                                        WCHAR* mszCards, LPDWORD pcchCards)
{
	SCARDAPI_STUB_CALL_LONG(SCardListCardsW, hContext, pbAtr, rgquidInterfaces, cguidInterfaceCount,
	                        mszCards, pcchCards);
}

WINSCARDAPI LONG WINAPI SCardListInterfacesA(SCARDCONTEXT hContext, LPCSTR szCard,
                                             LPGUID pguidInterfaces, LPDWORD pcguidInterfaces)
{
	SCARDAPI_STUB_CALL_LONG(SCardListInterfacesA, hContext, szCard, pguidInterfaces,
	                        pcguidInterfaces);
}

WINSCARDAPI LONG WINAPI SCardListInterfacesW(SCARDCONTEXT hContext, LPCWSTR szCard,
                                             LPGUID pguidInterfaces, LPDWORD pcguidInterfaces)
{
	SCARDAPI_STUB_CALL_LONG(SCardListInterfacesW, hContext, szCard, pguidInterfaces,
	                        pcguidInterfaces);
}

WINSCARDAPI LONG WINAPI SCardGetProviderIdA(SCARDCONTEXT hContext, LPCSTR szCard,
                                            LPGUID pguidProviderId)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetProviderIdA, hContext, szCard, pguidProviderId);
}

WINSCARDAPI LONG WINAPI SCardGetProviderIdW(SCARDCONTEXT hContext, LPCWSTR szCard,
                                            LPGUID pguidProviderId)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetProviderIdW, hContext, szCard, pguidProviderId);
}

WINSCARDAPI LONG WINAPI SCardGetCardTypeProviderNameA(SCARDCONTEXT hContext, LPCSTR szCardName,
                                                      DWORD dwProviderId, CHAR* szProvider,
                                                      LPDWORD pcchProvider)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetCardTypeProviderNameA, hContext, szCardName, dwProviderId,
	                        szProvider, pcchProvider);
}

WINSCARDAPI LONG WINAPI SCardGetCardTypeProviderNameW(SCARDCONTEXT hContext, LPCWSTR szCardName,
                                                      DWORD dwProviderId, WCHAR* szProvider,
                                                      LPDWORD pcchProvider)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetCardTypeProviderNameW, hContext, szCardName, dwProviderId,
	                        szProvider, pcchProvider);
}

WINSCARDAPI LONG WINAPI SCardIntroduceReaderGroupA(SCARDCONTEXT hContext, LPCSTR szGroupName)
{
	SCARDAPI_STUB_CALL_LONG(SCardIntroduceReaderGroupA, hContext, szGroupName);
}

WINSCARDAPI LONG WINAPI SCardIntroduceReaderGroupW(SCARDCONTEXT hContext, LPCWSTR szGroupName)
{
	SCARDAPI_STUB_CALL_LONG(SCardIntroduceReaderGroupW, hContext, szGroupName);
}

WINSCARDAPI LONG WINAPI SCardForgetReaderGroupA(SCARDCONTEXT hContext, LPCSTR szGroupName)
{
	SCARDAPI_STUB_CALL_LONG(SCardForgetReaderGroupA, hContext, szGroupName);
}

WINSCARDAPI LONG WINAPI SCardForgetReaderGroupW(SCARDCONTEXT hContext, LPCWSTR szGroupName)
{
	SCARDAPI_STUB_CALL_LONG(SCardForgetReaderGroupW, hContext, szGroupName);
}

WINSCARDAPI LONG WINAPI SCardIntroduceReaderA(SCARDCONTEXT hContext, LPCSTR szReaderName,
                                              LPCSTR szDeviceName)
{
	SCARDAPI_STUB_CALL_LONG(SCardIntroduceReaderA, hContext, szReaderName, szDeviceName);
}

WINSCARDAPI LONG WINAPI SCardIntroduceReaderW(SCARDCONTEXT hContext, LPCWSTR szReaderName,
                                              LPCWSTR szDeviceName)
{
	SCARDAPI_STUB_CALL_LONG(SCardIntroduceReaderW, hContext, szReaderName, szDeviceName);
}

WINSCARDAPI LONG WINAPI SCardForgetReaderA(SCARDCONTEXT hContext, LPCSTR szReaderName)
{
	SCARDAPI_STUB_CALL_LONG(SCardForgetReaderA, hContext, szReaderName);
}

WINSCARDAPI LONG WINAPI SCardForgetReaderW(SCARDCONTEXT hContext, LPCWSTR szReaderName)
{
	SCARDAPI_STUB_CALL_LONG(SCardForgetReaderW, hContext, szReaderName);
}

WINSCARDAPI LONG WINAPI SCardAddReaderToGroupA(SCARDCONTEXT hContext, LPCSTR szReaderName,
                                               LPCSTR szGroupName)
{
	SCARDAPI_STUB_CALL_LONG(SCardAddReaderToGroupA, hContext, szReaderName, szGroupName);
}

WINSCARDAPI LONG WINAPI SCardAddReaderToGroupW(SCARDCONTEXT hContext, LPCWSTR szReaderName,
                                               LPCWSTR szGroupName)
{
	SCARDAPI_STUB_CALL_LONG(SCardAddReaderToGroupW, hContext, szReaderName, szGroupName);
}

WINSCARDAPI LONG WINAPI SCardRemoveReaderFromGroupA(SCARDCONTEXT hContext, LPCSTR szReaderName,
                                                    LPCSTR szGroupName)
{
	SCARDAPI_STUB_CALL_LONG(SCardRemoveReaderFromGroupA, hContext, szReaderName, szGroupName);
}

WINSCARDAPI LONG WINAPI SCardRemoveReaderFromGroupW(SCARDCONTEXT hContext, LPCWSTR szReaderName,
                                                    LPCWSTR szGroupName)
{
	SCARDAPI_STUB_CALL_LONG(SCardRemoveReaderFromGroupW, hContext, szReaderName, szGroupName);
}

WINSCARDAPI LONG WINAPI SCardIntroduceCardTypeA(SCARDCONTEXT hContext, LPCSTR szCardName,
                                                LPCGUID pguidPrimaryProvider,
                                                LPCGUID rgguidInterfaces, DWORD dwInterfaceCount,
                                                LPCBYTE pbAtr, LPCBYTE pbAtrMask, DWORD cbAtrLen)
{
	SCARDAPI_STUB_CALL_LONG(SCardIntroduceCardTypeA, hContext, szCardName, pguidPrimaryProvider,
	                        rgguidInterfaces, dwInterfaceCount, pbAtr, pbAtrMask, cbAtrLen);
}

WINSCARDAPI LONG WINAPI SCardIntroduceCardTypeW(SCARDCONTEXT hContext, LPCWSTR szCardName,
                                                LPCGUID pguidPrimaryProvider,
                                                LPCGUID rgguidInterfaces, DWORD dwInterfaceCount,
                                                LPCBYTE pbAtr, LPCBYTE pbAtrMask, DWORD cbAtrLen)
{
	SCARDAPI_STUB_CALL_LONG(SCardIntroduceCardTypeW, hContext, szCardName, pguidPrimaryProvider,
	                        rgguidInterfaces, dwInterfaceCount, pbAtr, pbAtrMask, cbAtrLen);
}

WINSCARDAPI LONG WINAPI SCardSetCardTypeProviderNameA(SCARDCONTEXT hContext, LPCSTR szCardName,
                                                      DWORD dwProviderId, LPCSTR szProvider)
{
	SCARDAPI_STUB_CALL_LONG(SCardSetCardTypeProviderNameA, hContext, szCardName, dwProviderId,
	                        szProvider);
}

WINSCARDAPI LONG WINAPI SCardSetCardTypeProviderNameW(SCARDCONTEXT hContext, LPCWSTR szCardName,
                                                      DWORD dwProviderId, LPCWSTR szProvider)
{
	SCARDAPI_STUB_CALL_LONG(SCardSetCardTypeProviderNameW, hContext, szCardName, dwProviderId,
	                        szProvider);
}

WINSCARDAPI LONG WINAPI SCardForgetCardTypeA(SCARDCONTEXT hContext, LPCSTR szCardName)
{
	SCARDAPI_STUB_CALL_LONG(SCardForgetCardTypeA, hContext, szCardName);
}

WINSCARDAPI LONG WINAPI SCardForgetCardTypeW(SCARDCONTEXT hContext, LPCWSTR szCardName)
{
	SCARDAPI_STUB_CALL_LONG(SCardForgetCardTypeW, hContext, szCardName);
}

WINSCARDAPI LONG WINAPI SCardFreeMemory(SCARDCONTEXT hContext, LPVOID pvMem)
{
	SCARDAPI_STUB_CALL_LONG(SCardFreeMemory, hContext, pvMem);
}

WINSCARDAPI HANDLE WINAPI SCardAccessStartedEvent(void)
{
	SCARDAPI_STUB_CALL_HANDLE(SCardAccessStartedEvent);
}

WINSCARDAPI void WINAPI SCardReleaseStartedEvent(void)
{
	SCARDAPI_STUB_CALL_VOID(SCardReleaseStartedEvent);
}

WINSCARDAPI LONG WINAPI SCardLocateCardsA(SCARDCONTEXT hContext, LPCSTR mszCards,
                                          LPSCARD_READERSTATEA rgReaderStates, DWORD cReaders)
{
	SCARDAPI_STUB_CALL_LONG(SCardLocateCardsA, hContext, mszCards, rgReaderStates, cReaders);
}

WINSCARDAPI LONG WINAPI SCardLocateCardsW(SCARDCONTEXT hContext, LPCWSTR mszCards,
                                          LPSCARD_READERSTATEW rgReaderStates, DWORD cReaders)
{
	SCARDAPI_STUB_CALL_LONG(SCardLocateCardsW, hContext, mszCards, rgReaderStates, cReaders);
}

WINSCARDAPI LONG WINAPI SCardLocateCardsByATRA(SCARDCONTEXT hContext, LPSCARD_ATRMASK rgAtrMasks,
                                               DWORD cAtrs, LPSCARD_READERSTATEA rgReaderStates,
                                               DWORD cReaders)
{
	SCARDAPI_STUB_CALL_LONG(SCardLocateCardsByATRA, hContext, rgAtrMasks, cAtrs, rgReaderStates,
	                        cReaders);
}

WINSCARDAPI LONG WINAPI SCardLocateCardsByATRW(SCARDCONTEXT hContext, LPSCARD_ATRMASK rgAtrMasks,
                                               DWORD cAtrs, LPSCARD_READERSTATEW rgReaderStates,
                                               DWORD cReaders)
{
	SCARDAPI_STUB_CALL_LONG(SCardLocateCardsByATRW, hContext, rgAtrMasks, cAtrs, rgReaderStates,
	                        cReaders);
}

WINSCARDAPI LONG WINAPI SCardGetStatusChangeA(SCARDCONTEXT hContext, DWORD dwTimeout,
                                              LPSCARD_READERSTATEA rgReaderStates, DWORD cReaders)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetStatusChangeA, hContext, dwTimeout, rgReaderStates, cReaders);
}

WINSCARDAPI LONG WINAPI SCardGetStatusChangeW(SCARDCONTEXT hContext, DWORD dwTimeout,
                                              LPSCARD_READERSTATEW rgReaderStates, DWORD cReaders)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetStatusChangeW, hContext, dwTimeout, rgReaderStates, cReaders);
}

WINSCARDAPI LONG WINAPI SCardCancel(SCARDCONTEXT hContext)
{
	SCARDAPI_STUB_CALL_LONG(SCardCancel, hContext);
}

WINSCARDAPI LONG WINAPI SCardConnectA(SCARDCONTEXT hContext, LPCSTR szReader, DWORD dwShareMode,
                                      DWORD dwPreferredProtocols, LPSCARDHANDLE phCard,
                                      LPDWORD pdwActiveProtocol)
{
	SCARDAPI_STUB_CALL_LONG(SCardConnectA, hContext, szReader, dwShareMode, dwPreferredProtocols,
	                        phCard, pdwActiveProtocol);
}

WINSCARDAPI LONG WINAPI SCardConnectW(SCARDCONTEXT hContext, LPCWSTR szReader, DWORD dwShareMode,
                                      DWORD dwPreferredProtocols, LPSCARDHANDLE phCard,
                                      LPDWORD pdwActiveProtocol)
{
	SCARDAPI_STUB_CALL_LONG(SCardConnectW, hContext, szReader, dwShareMode, dwPreferredProtocols,
	                        phCard, pdwActiveProtocol);
}

WINSCARDAPI LONG WINAPI SCardReconnect(SCARDHANDLE hCard, DWORD dwShareMode,
                                       DWORD dwPreferredProtocols, DWORD dwInitialization,
                                       LPDWORD pdwActiveProtocol)
{
	SCARDAPI_STUB_CALL_LONG(SCardReconnect, hCard, dwShareMode, dwPreferredProtocols,
	                        dwInitialization, pdwActiveProtocol);
}

WINSCARDAPI LONG WINAPI SCardDisconnect(SCARDHANDLE hCard, DWORD dwDisposition)
{
	SCARDAPI_STUB_CALL_LONG(SCardDisconnect, hCard, dwDisposition);
}

WINSCARDAPI LONG WINAPI SCardBeginTransaction(SCARDHANDLE hCard)
{
	SCARDAPI_STUB_CALL_LONG(SCardBeginTransaction, hCard);
}

WINSCARDAPI LONG WINAPI SCardEndTransaction(SCARDHANDLE hCard, DWORD dwDisposition)
{
	SCARDAPI_STUB_CALL_LONG(SCardEndTransaction, hCard, dwDisposition);
}

WINSCARDAPI LONG WINAPI SCardCancelTransaction(SCARDHANDLE hCard)
{
	SCARDAPI_STUB_CALL_LONG(SCardCancelTransaction, hCard);
}

WINSCARDAPI LONG WINAPI SCardState(SCARDHANDLE hCard, LPDWORD pdwState, LPDWORD pdwProtocol,
                                   LPBYTE pbAtr, LPDWORD pcbAtrLen)
{
	SCARDAPI_STUB_CALL_LONG(SCardState, hCard, pdwState, pdwProtocol, pbAtr, pcbAtrLen);
}

WINSCARDAPI LONG WINAPI SCardStatusA(SCARDHANDLE hCard, LPSTR mszReaderNames, LPDWORD pcchReaderLen,
                                     LPDWORD pdwState, LPDWORD pdwProtocol, LPBYTE pbAtr,
                                     LPDWORD pcbAtrLen)
{
	SCARDAPI_STUB_CALL_LONG(SCardStatusA, hCard, mszReaderNames, pcchReaderLen, pdwState,
	                        pdwProtocol, pbAtr, pcbAtrLen);
}

WINSCARDAPI LONG WINAPI SCardStatusW(SCARDHANDLE hCard, LPWSTR mszReaderNames,
                                     LPDWORD pcchReaderLen, LPDWORD pdwState, LPDWORD pdwProtocol,
                                     LPBYTE pbAtr, LPDWORD pcbAtrLen)
{
	SCARDAPI_STUB_CALL_LONG(SCardStatusW, hCard, mszReaderNames, pcchReaderLen, pdwState,
	                        pdwProtocol, pbAtr, pcbAtrLen);
}

WINSCARDAPI LONG WINAPI SCardTransmit(SCARDHANDLE hCard, LPCSCARD_IO_REQUEST pioSendPci,
                                      LPCBYTE pbSendBuffer, DWORD cbSendLength,
                                      LPSCARD_IO_REQUEST pioRecvPci, LPBYTE pbRecvBuffer,
                                      LPDWORD pcbRecvLength)
{
	SCARDAPI_STUB_CALL_LONG(SCardTransmit, hCard, pioSendPci, pbSendBuffer, cbSendLength,
	                        pioRecvPci, pbRecvBuffer, pcbRecvLength);
}

WINSCARDAPI LONG WINAPI SCardGetTransmitCount(SCARDHANDLE hCard, LPDWORD pcTransmitCount)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetTransmitCount, hCard, pcTransmitCount);
}

WINSCARDAPI LONG WINAPI SCardControl(SCARDHANDLE hCard, DWORD dwControlCode, LPCVOID lpInBuffer,
                                     DWORD cbInBufferSize, LPVOID lpOutBuffer,
                                     DWORD cbOutBufferSize, LPDWORD lpBytesReturned)
{
	SCARDAPI_STUB_CALL_LONG(SCardControl, hCard, dwControlCode, lpInBuffer, cbInBufferSize,
	                        lpOutBuffer, cbOutBufferSize, lpBytesReturned);
}

WINSCARDAPI LONG WINAPI SCardGetAttrib(SCARDHANDLE hCard, DWORD dwAttrId, LPBYTE pbAttr,
                                       LPDWORD pcbAttrLen)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetAttrib, hCard, dwAttrId, pbAttr, pcbAttrLen);
}

WINSCARDAPI LONG WINAPI SCardSetAttrib(SCARDHANDLE hCard, DWORD dwAttrId, LPCBYTE pbAttr,
                                       DWORD cbAttrLen)
{
	SCARDAPI_STUB_CALL_LONG(SCardSetAttrib, hCard, dwAttrId, pbAttr, cbAttrLen);
}

WINSCARDAPI LONG WINAPI SCardUIDlgSelectCardA(LPOPENCARDNAMEA_EX pDlgStruc)
{
	SCARDAPI_STUB_CALL_LONG(SCardUIDlgSelectCardA, pDlgStruc);
}

WINSCARDAPI LONG WINAPI SCardUIDlgSelectCardW(LPOPENCARDNAMEW_EX pDlgStruc)
{
	SCARDAPI_STUB_CALL_LONG(SCardUIDlgSelectCardW, pDlgStruc);
}

WINSCARDAPI LONG WINAPI GetOpenCardNameA(LPOPENCARDNAMEA pDlgStruc)
{
	SCARDAPI_STUB_CALL_LONG(GetOpenCardNameA, pDlgStruc);
}

WINSCARDAPI LONG WINAPI GetOpenCardNameW(LPOPENCARDNAMEW pDlgStruc)
{
	SCARDAPI_STUB_CALL_LONG(GetOpenCardNameW, pDlgStruc);
}

WINSCARDAPI LONG WINAPI SCardDlgExtendedError(void)
{
	SCARDAPI_STUB_CALL_LONG(SCardDlgExtendedError);
}

WINSCARDAPI LONG WINAPI SCardReadCacheA(SCARDCONTEXT hContext, UUID* CardIdentifier,
                                        DWORD FreshnessCounter, LPSTR LookupName, PBYTE Data,
                                        DWORD* DataLen)
{
	SCARDAPI_STUB_CALL_LONG(SCardReadCacheA, hContext, CardIdentifier, FreshnessCounter, LookupName,
	                        Data, DataLen);
}

WINSCARDAPI LONG WINAPI SCardReadCacheW(SCARDCONTEXT hContext, UUID* CardIdentifier,
                                        DWORD FreshnessCounter, LPWSTR LookupName, PBYTE Data,
                                        DWORD* DataLen)
{
	SCARDAPI_STUB_CALL_LONG(SCardReadCacheW, hContext, CardIdentifier, FreshnessCounter, LookupName,
	                        Data, DataLen);
}

WINSCARDAPI LONG WINAPI SCardWriteCacheA(SCARDCONTEXT hContext, UUID* CardIdentifier,
                                         DWORD FreshnessCounter, LPSTR LookupName, PBYTE Data,
                                         DWORD DataLen)
{
	SCARDAPI_STUB_CALL_LONG(SCardWriteCacheA, hContext, CardIdentifier, FreshnessCounter,
	                        LookupName, Data, DataLen);
}

WINSCARDAPI LONG WINAPI SCardWriteCacheW(SCARDCONTEXT hContext, UUID* CardIdentifier,
                                         DWORD FreshnessCounter, LPWSTR LookupName, PBYTE Data,
                                         DWORD DataLen)
{
	SCARDAPI_STUB_CALL_LONG(SCardWriteCacheW, hContext, CardIdentifier, FreshnessCounter,
	                        LookupName, Data, DataLen);
}

WINSCARDAPI LONG WINAPI SCardGetReaderIconA(SCARDCONTEXT hContext, LPCSTR szReaderName,
                                            LPBYTE pbIcon, LPDWORD pcbIcon)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetReaderIconA, hContext, szReaderName, pbIcon, pcbIcon);
}

WINSCARDAPI LONG WINAPI SCardGetReaderIconW(SCARDCONTEXT hContext, LPCWSTR szReaderName,
                                            LPBYTE pbIcon, LPDWORD pcbIcon)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetReaderIconW, hContext, szReaderName, pbIcon, pcbIcon);
}

WINSCARDAPI LONG WINAPI SCardGetDeviceTypeIdA(SCARDCONTEXT hContext, LPCSTR szReaderName,
                                              LPDWORD pdwDeviceTypeId)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetDeviceTypeIdA, hContext, szReaderName, pdwDeviceTypeId);
}

WINSCARDAPI LONG WINAPI SCardGetDeviceTypeIdW(SCARDCONTEXT hContext, LPCWSTR szReaderName,
                                              LPDWORD pdwDeviceTypeId)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetDeviceTypeIdW, hContext, szReaderName, pdwDeviceTypeId);
}

WINSCARDAPI LONG WINAPI SCardGetReaderDeviceInstanceIdA(SCARDCONTEXT hContext, LPCSTR szReaderName,
                                                        LPSTR szDeviceInstanceId,
                                                        LPDWORD pcchDeviceInstanceId)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetReaderDeviceInstanceIdA, hContext, szReaderName,
	                        szDeviceInstanceId, pcchDeviceInstanceId);
}

WINSCARDAPI LONG WINAPI SCardGetReaderDeviceInstanceIdW(SCARDCONTEXT hContext, LPCWSTR szReaderName,
                                                        LPWSTR szDeviceInstanceId,
                                                        LPDWORD pcchDeviceInstanceId)
{
	SCARDAPI_STUB_CALL_LONG(SCardGetReaderDeviceInstanceIdW, hContext, szReaderName,
	                        szDeviceInstanceId, pcchDeviceInstanceId);
}

WINSCARDAPI LONG WINAPI SCardListReadersWithDeviceInstanceIdA(SCARDCONTEXT hContext,
                                                              LPCSTR szDeviceInstanceId,
                                                              LPSTR mszReaders, LPDWORD pcchReaders)
{
	SCARDAPI_STUB_CALL_LONG(SCardListReadersWithDeviceInstanceIdA, hContext, szDeviceInstanceId,
	                        mszReaders, pcchReaders);
}

WINSCARDAPI LONG WINAPI SCardListReadersWithDeviceInstanceIdW(SCARDCONTEXT hContext,
                                                              LPCWSTR szDeviceInstanceId,
                                                              LPWSTR mszReaders,
                                                              LPDWORD pcchReaders)
{
	SCARDAPI_STUB_CALL_LONG(SCardListReadersWithDeviceInstanceIdW, hContext, szDeviceInstanceId,
	                        mszReaders, pcchReaders);
}

WINSCARDAPI LONG WINAPI SCardAudit(SCARDCONTEXT hContext, DWORD dwEvent)
{
	SCARDAPI_STUB_CALL_LONG(SCardAudit, hContext, dwEvent);
}

/**
 * Extended API
 */

WINSCARDAPI const char* WINAPI SCardGetErrorString(LONG errorCode)
{
	switch (errorCode)
	{
		case SCARD_S_SUCCESS:
			return "SCARD_S_SUCCESS";

		case SCARD_F_INTERNAL_ERROR:
			return "SCARD_F_INTERNAL_ERROR";

		case SCARD_E_CANCELLED:
			return "SCARD_E_CANCELLED";

		case SCARD_E_INVALID_HANDLE:
			return "SCARD_E_INVALID_HANDLE";

		case SCARD_E_INVALID_PARAMETER:
			return "SCARD_E_INVALID_PARAMETER";

		case SCARD_E_INVALID_TARGET:
			return "SCARD_E_INVALID_TARGET";

		case SCARD_E_NO_MEMORY:
			return "SCARD_E_NO_MEMORY";

		case SCARD_F_WAITED_TOO_LONG:
			return "SCARD_F_WAITED_TOO_LONG";

		case SCARD_E_INSUFFICIENT_BUFFER:
			return "SCARD_E_INSUFFICIENT_BUFFER";

		case SCARD_E_UNKNOWN_READER:
			return "SCARD_E_UNKNOWN_READER";

		case SCARD_E_TIMEOUT:
			return "SCARD_E_TIMEOUT";

		case SCARD_E_SHARING_VIOLATION:
			return "SCARD_E_SHARING_VIOLATION";

		case SCARD_E_NO_SMARTCARD:
			return "SCARD_E_NO_SMARTCARD";

		case SCARD_E_UNKNOWN_CARD:
			return "SCARD_E_UNKNOWN_CARD";

		case SCARD_E_CANT_DISPOSE:
			return "SCARD_E_CANT_DISPOSE";

		case SCARD_E_PROTO_MISMATCH:
			return "SCARD_E_PROTO_MISMATCH";

		case SCARD_E_NOT_READY:
			return "SCARD_E_NOT_READY";

		case SCARD_E_INVALID_VALUE:
			return "SCARD_E_INVALID_VALUE";

		case SCARD_E_SYSTEM_CANCELLED:
			return "SCARD_E_SYSTEM_CANCELLED";

		case SCARD_F_COMM_ERROR:
			return "SCARD_F_COMM_ERROR";

		case SCARD_F_UNKNOWN_ERROR:
			return "SCARD_F_UNKNOWN_ERROR";

		case SCARD_E_INVALID_ATR:
			return "SCARD_E_INVALID_ATR";

		case SCARD_E_NOT_TRANSACTED:
			return "SCARD_E_NOT_TRANSACTED";

		case SCARD_E_READER_UNAVAILABLE:
			return "SCARD_E_READER_UNAVAILABLE";

		case SCARD_P_SHUTDOWN:
			return "SCARD_P_SHUTDOWN";

		case SCARD_E_PCI_TOO_SMALL:
			return "SCARD_E_PCI_TOO_SMALL";

		case SCARD_E_READER_UNSUPPORTED:
			return "SCARD_E_READER_UNSUPPORTED";

		case SCARD_E_DUPLICATE_READER:
			return "SCARD_E_DUPLICATE_READER";

		case SCARD_E_CARD_UNSUPPORTED:
			return "SCARD_E_CARD_UNSUPPORTED";

		case SCARD_E_NO_SERVICE:
			return "SCARD_E_NO_SERVICE";

		case SCARD_E_SERVICE_STOPPED:
			return "SCARD_E_SERVICE_STOPPED";

		case SCARD_E_UNEXPECTED:
			return "SCARD_E_UNEXPECTED";

		case SCARD_E_ICC_INSTALLATION:
			return "SCARD_E_ICC_INSTALLATION";

		case SCARD_E_ICC_CREATEORDER:
			return "SCARD_E_ICC_CREATEORDER";

		case SCARD_E_UNSUPPORTED_FEATURE:
			return "SCARD_E_UNSUPPORTED_FEATURE";

		case SCARD_E_DIR_NOT_FOUND:
			return "SCARD_E_DIR_NOT_FOUND";

		case SCARD_E_FILE_NOT_FOUND:
			return "SCARD_E_FILE_NOT_FOUND";

		case SCARD_E_NO_DIR:
			return "SCARD_E_NO_DIR";

		case SCARD_E_NO_FILE:
			return "SCARD_E_NO_FILE";

		case SCARD_E_NO_ACCESS:
			return "SCARD_E_NO_ACCESS";

		case SCARD_E_WRITE_TOO_MANY:
			return "SCARD_E_WRITE_TOO_MANY";

		case SCARD_E_BAD_SEEK:
			return "SCARD_E_BAD_SEEK";

		case SCARD_E_INVALID_CHV:
			return "SCARD_E_INVALID_CHV";

		case SCARD_E_UNKNOWN_RES_MNG:
			return "SCARD_E_UNKNOWN_RES_MNG";

		case SCARD_E_NO_SUCH_CERTIFICATE:
			return "SCARD_E_NO_SUCH_CERTIFICATE";

		case SCARD_E_CERTIFICATE_UNAVAILABLE:
			return "SCARD_E_CERTIFICATE_UNAVAILABLE";

		case SCARD_E_NO_READERS_AVAILABLE:
			return "SCARD_E_NO_READERS_AVAILABLE";

		case SCARD_E_COMM_DATA_LOST:
			return "SCARD_E_COMM_DATA_LOST";

		case SCARD_E_NO_KEY_CONTAINER:
			return "SCARD_E_NO_KEY_CONTAINER";

		case SCARD_E_SERVER_TOO_BUSY:
			return "SCARD_E_SERVER_TOO_BUSY";

		case SCARD_E_PIN_CACHE_EXPIRED:
			return "SCARD_E_PIN_CACHE_EXPIRED";

		case SCARD_E_NO_PIN_CACHE:
			return "SCARD_E_NO_PIN_CACHE";

		case SCARD_E_READ_ONLY_CARD:
			return "SCARD_E_READ_ONLY_CARD";

		case SCARD_W_UNSUPPORTED_CARD:
			return "SCARD_W_UNSUPPORTED_CARD";

		case SCARD_W_UNRESPONSIVE_CARD:
			return "SCARD_W_UNRESPONSIVE_CARD";

		case SCARD_W_UNPOWERED_CARD:
			return "SCARD_W_UNPOWERED_CARD";

		case SCARD_W_RESET_CARD:
			return "SCARD_W_RESET_CARD";

		case SCARD_W_REMOVED_CARD:
			return "SCARD_W_REMOVED_CARD";

		case SCARD_W_SECURITY_VIOLATION:
			return "SCARD_W_SECURITY_VIOLATION";

		case SCARD_W_WRONG_CHV:
			return "SCARD_W_WRONG_CHV";

		case SCARD_W_CHV_BLOCKED:
			return "SCARD_W_CHV_BLOCKED";

		case SCARD_W_EOF:
			return "SCARD_W_EOF";

		case SCARD_W_CANCELLED_BY_USER:
			return "SCARD_W_CANCELLED_BY_USER";

		case SCARD_W_CARD_NOT_AUTHENTICATED:
			return "SCARD_W_CARD_NOT_AUTHENTICATED";

		case SCARD_W_CACHE_ITEM_NOT_FOUND:
			return "SCARD_W_CACHE_ITEM_NOT_FOUND";

		case SCARD_W_CACHE_ITEM_STALE:
			return "SCARD_W_CACHE_ITEM_STALE";

		case SCARD_W_CACHE_ITEM_TOO_BIG:
			return "SCARD_W_CACHE_ITEM_TOO_BIG";

		default:
			return "SCARD_E_UNKNOWN";
	}
}

WINSCARDAPI const char* WINAPI SCardGetAttributeString(DWORD dwAttrId)
{
	switch (dwAttrId)
	{
		case SCARD_ATTR_VENDOR_NAME:
			return "SCARD_ATTR_VENDOR_NAME";

		case SCARD_ATTR_VENDOR_IFD_TYPE:
			return "SCARD_ATTR_VENDOR_IFD_TYPE";

		case SCARD_ATTR_VENDOR_IFD_VERSION:
			return "SCARD_ATTR_VENDOR_IFD_VERSION";

		case SCARD_ATTR_VENDOR_IFD_SERIAL_NO:
			return "SCARD_ATTR_VENDOR_IFD_SERIAL_NO";

		case SCARD_ATTR_CHANNEL_ID:
			return "SCARD_ATTR_CHANNEL_ID";

		case SCARD_ATTR_PROTOCOL_TYPES:
			return "SCARD_ATTR_PROTOCOL_TYPES";

		case SCARD_ATTR_DEFAULT_CLK:
			return "SCARD_ATTR_DEFAULT_CLK";

		case SCARD_ATTR_MAX_CLK:
			return "SCARD_ATTR_MAX_CLK";

		case SCARD_ATTR_DEFAULT_DATA_RATE:
			return "SCARD_ATTR_DEFAULT_DATA_RATE";

		case SCARD_ATTR_MAX_DATA_RATE:
			return "SCARD_ATTR_MAX_DATA_RATE";

		case SCARD_ATTR_MAX_IFSD:
			return "SCARD_ATTR_MAX_IFSD";

		case SCARD_ATTR_POWER_MGMT_SUPPORT:
			return "SCARD_ATTR_POWER_MGMT_SUPPORT";

		case SCARD_ATTR_USER_TO_CARD_AUTH_DEVICE:
			return "SCARD_ATTR_USER_TO_CARD_AUTH_DEVICE";

		case SCARD_ATTR_USER_AUTH_INPUT_DEVICE:
			return "SCARD_ATTR_USER_AUTH_INPUT_DEVICE";

		case SCARD_ATTR_CHARACTERISTICS:
			return "SCARD_ATTR_CHARACTERISTICS";

		case SCARD_ATTR_CURRENT_PROTOCOL_TYPE:
			return "SCARD_ATTR_CURRENT_PROTOCOL_TYPE";

		case SCARD_ATTR_CURRENT_CLK:
			return "SCARD_ATTR_CURRENT_CLK";

		case SCARD_ATTR_CURRENT_F:
			return "SCARD_ATTR_CURRENT_F";

		case SCARD_ATTR_CURRENT_D:
			return "SCARD_ATTR_CURRENT_D";

		case SCARD_ATTR_CURRENT_N:
			return "SCARD_ATTR_CURRENT_N";

		case SCARD_ATTR_CURRENT_W:
			return "SCARD_ATTR_CURRENT_W";

		case SCARD_ATTR_CURRENT_IFSC:
			return "SCARD_ATTR_CURRENT_IFSC";

		case SCARD_ATTR_CURRENT_IFSD:
			return "SCARD_ATTR_CURRENT_IFSD";

		case SCARD_ATTR_CURRENT_BWT:
			return "SCARD_ATTR_CURRENT_BWT";

		case SCARD_ATTR_CURRENT_CWT:
			return "SCARD_ATTR_CURRENT_CWT";

		case SCARD_ATTR_CURRENT_EBC_ENCODING:
			return "SCARD_ATTR_CURRENT_EBC_ENCODING";

		case SCARD_ATTR_EXTENDED_BWT:
			return "SCARD_ATTR_EXTENDED_BWT";

		case SCARD_ATTR_ICC_PRESENCE:
			return "SCARD_ATTR_ICC_PRESENCE";

		case SCARD_ATTR_ICC_INTERFACE_STATUS:
			return "SCARD_ATTR_ICC_INTERFACE_STATUS";

		case SCARD_ATTR_CURRENT_IO_STATE:
			return "SCARD_ATTR_CURRENT_IO_STATE";

		case SCARD_ATTR_ATR_STRING:
			return "SCARD_ATTR_ATR_STRING";

		case SCARD_ATTR_ICC_TYPE_PER_ATR:
			return "SCARD_ATTR_ICC_TYPE_PER_ATR";

		case SCARD_ATTR_ESC_RESET:
			return "SCARD_ATTR_ESC_RESET";

		case SCARD_ATTR_ESC_CANCEL:
			return "SCARD_ATTR_ESC_CANCEL";

		case SCARD_ATTR_ESC_AUTHREQUEST:
			return "SCARD_ATTR_ESC_AUTHREQUEST";

		case SCARD_ATTR_MAXINPUT:
			return "SCARD_ATTR_MAXINPUT";

		case SCARD_ATTR_DEVICE_UNIT:
			return "SCARD_ATTR_DEVICE_UNIT";

		case SCARD_ATTR_DEVICE_IN_USE:
			return "SCARD_ATTR_DEVICE_IN_USE";

		case SCARD_ATTR_DEVICE_FRIENDLY_NAME_A:
			return "SCARD_ATTR_DEVICE_FRIENDLY_NAME_A";

		case SCARD_ATTR_DEVICE_SYSTEM_NAME_A:
			return "SCARD_ATTR_DEVICE_SYSTEM_NAME_A";

		case SCARD_ATTR_DEVICE_FRIENDLY_NAME_W:
			return "SCARD_ATTR_DEVICE_FRIENDLY_NAME_W";

		case SCARD_ATTR_DEVICE_SYSTEM_NAME_W:
			return "SCARD_ATTR_DEVICE_SYSTEM_NAME_W";

		case SCARD_ATTR_SUPRESS_T1_IFS_REQUEST:
			return "SCARD_ATTR_SUPRESS_T1_IFS_REQUEST";

		default:
			return "SCARD_ATTR_UNKNOWN";
	}
}

WINSCARDAPI const char* WINAPI SCardGetProtocolString(DWORD dwProtocols)
{
	if (dwProtocols == SCARD_PROTOCOL_UNDEFINED)
		return "SCARD_PROTOCOL_UNDEFINED";

	if (dwProtocols == SCARD_PROTOCOL_T0)
		return "SCARD_PROTOCOL_T0";

	if (dwProtocols == SCARD_PROTOCOL_T1)
		return "SCARD_PROTOCOL_T1";

	if (dwProtocols == SCARD_PROTOCOL_Tx)
		return "SCARD_PROTOCOL_Tx";

	if (dwProtocols == SCARD_PROTOCOL_RAW)
		return "SCARD_PROTOCOL_RAW";

	if (dwProtocols == SCARD_PROTOCOL_DEFAULT)
		return "SCARD_PROTOCOL_DEFAULT";

	if (dwProtocols == (SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_RAW))
		return "SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_RAW";

	if (dwProtocols == (SCARD_PROTOCOL_T1 | SCARD_PROTOCOL_RAW))
		return "SCARD_PROTOCOL_T1 | SCARD_PROTOCOL_RAW";

	if (dwProtocols == (SCARD_PROTOCOL_Tx | SCARD_PROTOCOL_RAW))
		return "SCARD_PROTOCOL_Tx | SCARD_PROTOCOL_RAW";

	return "SCARD_PROTOCOL_UNKNOWN";
}

WINSCARDAPI const char* WINAPI SCardGetShareModeString(DWORD dwShareMode)
{
	switch (dwShareMode)
	{
		case SCARD_SHARE_EXCLUSIVE:
			return "SCARD_SHARE_EXCLUSIVE";

		case SCARD_SHARE_SHARED:
			return "SCARD_SHARE_SHARED";

		case SCARD_SHARE_DIRECT:
			return "SCARD_SHARE_DIRECT";

		default:
			return "SCARD_SHARE_UNKNOWN";
	}
}

WINSCARDAPI const char* WINAPI SCardGetDispositionString(DWORD dwDisposition)
{
	switch (dwDisposition)
	{
		case SCARD_LEAVE_CARD:
			return "SCARD_LEAVE_CARD";

		case SCARD_RESET_CARD:
			return "SCARD_RESET_CARD";

		case SCARD_UNPOWER_CARD:
			return "SCARD_UNPOWER_CARD";

		default:
			return "SCARD_UNKNOWN_CARD";
	}
}

WINSCARDAPI const char* WINAPI SCardGetScopeString(DWORD dwScope)
{
	switch (dwScope)
	{
		case SCARD_SCOPE_USER:
			return "SCARD_SCOPE_USER";

		case SCARD_SCOPE_TERMINAL:
			return "SCARD_SCOPE_TERMINAL";

		case SCARD_SCOPE_SYSTEM:
			return "SCARD_SCOPE_SYSTEM";

		default:
			return "SCARD_SCOPE_UNKNOWN";
	}
}

WINSCARDAPI const char* WINAPI SCardGetCardStateString(DWORD dwCardState)
{
	switch (dwCardState)
	{
		case SCARD_UNKNOWN:
			return "SCARD_UNKNOWN";

		case SCARD_ABSENT:
			return "SCARD_ABSENT";

		case SCARD_PRESENT:
			return "SCARD_PRESENT";

		case SCARD_SWALLOWED:
			return "SCARD_SWALLOWED";

		case SCARD_POWERED:
			return "SCARD_POWERED";

		case SCARD_NEGOTIABLE:
			return "SCARD_NEGOTIABLE";

		case SCARD_SPECIFIC:
			return "SCARD_SPECIFIC";

		default:
			return "SCARD_UNKNOWN";
	}
}

WINSCARDAPI char* WINAPI SCardGetReaderStateString(DWORD dwReaderState)
{
	char* szReaderState = malloc(512);

	if (!szReaderState)
		return NULL;

	szReaderState[0] = '\0';

	if (dwReaderState & SCARD_STATE_IGNORE)
	{
		if (szReaderState[0])
			strcat(szReaderState, " | ");

		strcat(szReaderState, "SCARD_STATE_IGNORE");
	}

	if (dwReaderState & SCARD_STATE_CHANGED)
	{
		if (szReaderState[0])
			strcat(szReaderState, " | ");

		strcat(szReaderState, "SCARD_STATE_CHANGED");
	}

	if (dwReaderState & SCARD_STATE_UNKNOWN)
	{
		if (szReaderState[0])
			strcat(szReaderState, " | ");

		strcat(szReaderState, "SCARD_STATE_UNKNOWN");
	}

	if (dwReaderState & SCARD_STATE_UNAVAILABLE)
	{
		if (szReaderState[0])
			strcat(szReaderState, " | ");

		strcat(szReaderState, "SCARD_STATE_UNAVAILABLE");
	}

	if (dwReaderState & SCARD_STATE_EMPTY)
	{
		if (szReaderState[0])
			strcat(szReaderState, " | ");

		strcat(szReaderState, "SCARD_STATE_EMPTY");
	}

	if (dwReaderState & SCARD_STATE_PRESENT)
	{
		if (szReaderState[0])
			strcat(szReaderState, " | ");

		strcat(szReaderState, "SCARD_STATE_PRESENT");
	}

	if (dwReaderState & SCARD_STATE_ATRMATCH)
	{
		if (szReaderState[0])
			strcat(szReaderState, " | ");

		strcat(szReaderState, "SCARD_STATE_ATRMATCH");
	}

	if (dwReaderState & SCARD_STATE_EXCLUSIVE)
	{
		if (szReaderState[0])
			strcat(szReaderState, " | ");

		strcat(szReaderState, "SCARD_STATE_EXCLUSIVE");
	}

	if (dwReaderState & SCARD_STATE_INUSE)
	{
		if (szReaderState[0])
			strcat(szReaderState, " | ");

		strcat(szReaderState, "SCARD_STATE_INUSE");
	}

	if (dwReaderState & SCARD_STATE_MUTE)
	{
		if (szReaderState[0])
			strcat(szReaderState, " | ");

		strcat(szReaderState, "SCARD_STATE_MUTE");
	}

	if (dwReaderState & SCARD_STATE_UNPOWERED)
	{
		if (szReaderState[0])
			strcat(szReaderState, " | ");

		strcat(szReaderState, "SCARD_STATE_UNPOWERED");
	}

	if (!szReaderState[0])
		strcat(szReaderState, "SCARD_STATE_UNAWARE");

	return szReaderState;
}