winscard: Implement SCardIsValidContext().

dlls/winscard/unixlib.c

@@ -33,6 +33,7 @@
 
 LONG SCardEstablishContext( UINT64, const void *, const void *, UINT64 * );
 LONG SCardReleaseContext( UINT64 );
+LONG SCardIsValidContext( UINT64 );
 
 static NTSTATUS scard_establish_context( void *args )
 {
@@ -46,8 +47,15 @@ static NTSTATUS scard_release_context( void *args )
     return SCardReleaseContext( params->handle );
 }
 
+static NTSTATUS scard_is_valid_context( void *args )
+{
+    struct scard_is_valid_context_params *params = args;
+    return SCardIsValidContext( params->handle );
+}
+
 const unixlib_entry_t __wine_unix_call_funcs[] =
 {
     scard_establish_context,
     scard_release_context,
+    scard_is_valid_context,
 };

dlls/winscard/unixlib.h

@@ -30,8 +30,14 @@ struct scard_release_context_params
     UINT64 handle;
 };
 
+struct scard_is_valid_context_params
+{
+    UINT64 handle;
+};
+
 enum winscard_funcs
 {
     unix_scard_establish_context,
     unix_scard_release_context,
+    unix_scard_is_valid_context,
 };

dlls/winscard/winscard.c

@@ -94,11 +94,20 @@ LONG WINAPI SCardEstablishContext( DWORD scope, const void *reserved1, const voi
     return ret;
 }
 
-LONG WINAPI SCardIsValidContext(SCARDCONTEXT context)
+LONG WINAPI SCardIsValidContext( SCARDCONTEXT context )
 {
-    FIXME("(%Ix) stub\n", context);
-    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
-    return SCARD_F_INTERNAL_ERROR;
+    struct handle *handle = (struct handle *)context;
+    struct scard_is_valid_context_params params;
+    LONG ret;
+
+    TRACE( "%Ix\n", context );
+
+    if (!handle || handle->magic != CONTEXT_MAGIC) return ERROR_INVALID_HANDLE;
+
+    params.handle = handle->unix_handle;
+    ret = UNIX_CALL( scard_is_valid_context, &params );
+    TRACE( "returning %#lx\n", ret );
+    return ret;
 }
 
 LONG WINAPI SCardListCardsA(SCARDCONTEXT hContext, LPCBYTE pbAtr, LPCGUID rgguidInterfaces, DWORD cguidInterfaceCount, LPSTR mszCards, LPDWORD pcchCards)