Allow E_IMPL from BA/bext and check all cbSizes from BA/bext.

1 files changed, 22 insertions, 0 deletions

diff --git a/src/engine/externalengine.h b/src/engine/externalengine.h
new file mode 100644
index 00000000..7910b224
--- /dev/null
+++ b/src/engine/externalengine.h
@@ -0,0 +1,22 @@
+#pragma once
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+
+#define ValidateMessageParameter(x, pv, type) { x = ExternalEngineValidateMessageParameter(pv, offsetof(type, cbSize), sizeof(type)); if (FAILED(x)) { goto LExit; }}
+#define ValidateMessageArgs(x, pv, type, identifier) ValidateMessageParameter(x, pv, type); const type* identifier = reinterpret_cast<type*>(pv); UNREFERENCED_PARAMETER(identifier)
+#define ValidateMessageResults(x, pv, type, identifier) ValidateMessageParameter(x, pv, type); type* identifier = reinterpret_cast<type*>(pv); UNREFERENCED_PARAMETER(identifier)
+
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+HRESULT WINAPI ExternalEngineValidateMessageParameter(
+    __in_opt const LPVOID pv,
+    __in SIZE_T cbSizeOffset,
+    __in DWORD dwMinimumSize
+    );
+
+#if defined(__cplusplus)
+}
+#endif