1 files changed, 274 insertions, 0 deletions

diff --git a/src/dutil/varutil.cpp b/src/dutil/varutil.cpp
new file mode 100644
index 00000000..88716105
--- /dev/null
+++ b/src/dutil/varutil.cpp
@@ -0,0 +1,274 @@
+// 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.
+
+#include "precomp.h"
+
+struct VARIABLE_ENUM_STRUCT
+{
+};
+
+struct VARIABLES_STRUCT
+{
+};
+
+const int VARIABLE_ENUM_HANDLE_BYTES = sizeof(VARIABLE_ENUM_STRUCT);
+const int VARIABLES_HANDLE_BYTES = sizeof(VARIABLES_STRUCT);
+
+// function definitions
+
+/********************************************************************
+VarCreate - creates a variables group.
+********************************************************************/
+extern "C" HRESULT DAPI VarCreate(
+    __out_bcount(VARIABLES_HANDLE_BYTES) VARIABLES_HANDLE* ppVariables
+    )
+{
+    UNREFERENCED_PARAMETER(ppVariables);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarDestroy - destroys a variables group, accepting an optional callback
+             to help free the variable contexts.
+********************************************************************/
+extern "C" void DAPI VarDestroy(
+    __in_bcount(VARIABLES_HANDLE_BYTES) VARIABLES_HANDLE pVariables,
+    __in_opt PFN_FREEVARIABLECONTEXT vpfFreeVariableContext
+    )
+{
+    UNREFERENCED_PARAMETER(pVariables);
+    UNREFERENCED_PARAMETER(vpfFreeVariableContext);
+}
+
+/********************************************************************
+VarFreeValue - frees a variable value.
+********************************************************************/
+extern "C" void DAPI VarFreeValue(
+    __in VARIABLE_VALUE* pValue
+    )
+{
+    UNREFERENCED_PARAMETER(pValue);
+}
+
+/********************************************************************
+VarEscapeString - escapes special characters in wzIn so that it can
+                  be used in conditions or variable values.
+********************************************************************/
+extern "C" HRESULT DAPI VarEscapeString(
+    __in_z LPCWSTR wzIn,
+    __out_z LPWSTR* psczOut
+    )
+{
+    UNREFERENCED_PARAMETER(wzIn);
+    UNREFERENCED_PARAMETER(psczOut);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarFormatString - similar to MsiFormatRecord.
+********************************************************************/
+extern "C" HRESULT DAPI VarFormatString(
+    __in C_VARIABLES_HANDLE pVariables,
+    __in_z LPCWSTR wzIn,
+    __out_z_opt LPWSTR* psczOut,
+    __out_opt DWORD* pcchOut
+    )
+{
+    UNREFERENCED_PARAMETER(pVariables);
+    UNREFERENCED_PARAMETER(wzIn);
+    UNREFERENCED_PARAMETER(psczOut);
+    UNREFERENCED_PARAMETER(pcchOut);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarGetFormatted - gets the formatted value of a single variable.
+********************************************************************/
+extern "C" HRESULT DAPI VarGetFormatted(
+    __in C_VARIABLES_HANDLE pVariables,
+    __in_z LPCWSTR wzVariable,
+    __out_z LPWSTR* psczValue
+    )
+{
+    UNREFERENCED_PARAMETER(pVariables);
+    UNREFERENCED_PARAMETER(wzVariable);
+    UNREFERENCED_PARAMETER(psczValue);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarGetNumeric - gets the numeric value of a variable.  If the type of
+                the variable is not numeric, it will attempt to
+                convert the value into a number.
+********************************************************************/
+extern "C" HRESULT DAPI VarGetNumeric(
+    __in C_VARIABLES_HANDLE pVariables,
+    __in_z LPCWSTR wzVariable,
+    __out LONGLONG* pllValue
+    )
+{
+    UNREFERENCED_PARAMETER(pVariables);
+    UNREFERENCED_PARAMETER(wzVariable);
+    UNREFERENCED_PARAMETER(pllValue);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarGetString - gets the unformatted string value of a variable.  If
+               the type of the variable is not string, it will
+               convert the value to a string.
+********************************************************************/
+extern "C" HRESULT DAPI VarGetString(
+    __in C_VARIABLES_HANDLE pVariables,
+    __in_z LPCWSTR wzVariable,
+    __out_z LPWSTR* psczValue
+    )
+{
+    UNREFERENCED_PARAMETER(pVariables);
+    UNREFERENCED_PARAMETER(wzVariable);
+    UNREFERENCED_PARAMETER(psczValue);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarGetVersion - gets the version value of a variable.  If the type of
+                the variable is not version, it will attempt to
+                convert the value into a version.
+********************************************************************/
+extern "C" HRESULT DAPI VarGetVersion(
+    __in C_VARIABLES_HANDLE pVariables,
+    __in_z LPCWSTR wzVariable,
+    __in DWORD64* pqwValue
+    )
+{
+    UNREFERENCED_PARAMETER(pVariables);
+    UNREFERENCED_PARAMETER(wzVariable);
+    UNREFERENCED_PARAMETER(pqwValue);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarGetValue - gets the value of a variable along with its metadata.
+********************************************************************/
+extern "C" HRESULT DAPI VarGetValue(
+    __in C_VARIABLES_HANDLE pVariables,
+    __in_z LPCWSTR wzVariable,
+    __out VARIABLE_VALUE** ppValue
+    )
+{
+    UNREFERENCED_PARAMETER(pVariables);
+    UNREFERENCED_PARAMETER(wzVariable);
+    UNREFERENCED_PARAMETER(ppValue);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarSetNumeric - sets the value of the variable to a number, the type
+                of the variable to numeric, and adds the variable to
+                the group if necessary.
+********************************************************************/
+extern "C" HRESULT DAPI VarSetNumeric(
+    __in VARIABLES_HANDLE pVariables,
+    __in_z LPCWSTR wzVariable,
+    __in LONGLONG llValue
+    )
+{
+    UNREFERENCED_PARAMETER(pVariables);
+    UNREFERENCED_PARAMETER(wzVariable);
+    UNREFERENCED_PARAMETER(llValue);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarSetString - sets the value of the variable to a string, the type
+               of the variable to string, and adds the variable to
+               the group if necessary.
+********************************************************************/
+extern "C" HRESULT DAPI VarSetString(
+    __in VARIABLES_HANDLE pVariables,
+    __in_z LPCWSTR wzVariable,
+    __in_z_opt LPCWSTR wzValue
+    )
+{
+    UNREFERENCED_PARAMETER(pVariables);
+    UNREFERENCED_PARAMETER(wzVariable);
+    UNREFERENCED_PARAMETER(wzValue);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarSetVersion - sets the value of the variable to a version, the type
+                of the variable to version, and adds the variable to
+                the group if necessary.
+********************************************************************/
+extern "C" HRESULT DAPI VarSetVersion(
+    __in VARIABLES_HANDLE pVariables,
+    __in_z LPCWSTR wzVariable,
+    __in DWORD64 qwValue
+    )
+{
+    UNREFERENCED_PARAMETER(pVariables);
+    UNREFERENCED_PARAMETER(wzVariable);
+    UNREFERENCED_PARAMETER(qwValue);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarSetValue - sets the value of the variable along with its metadata.
+              Also adds the variable to the group if necessary.
+********************************************************************/
+extern "C" HRESULT DAPI VarSetValue(
+    __in VARIABLES_HANDLE pVariables,
+    __in_z LPCWSTR wzVariable,
+    __in VARIABLE_VALUE* pValue
+    )
+{
+    UNREFERENCED_PARAMETER(pVariables);
+    UNREFERENCED_PARAMETER(wzVariable);
+    UNREFERENCED_PARAMETER(pValue);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarStartEnum - starts the enumeration of the variable group.  There
+               is no guarantee for the order of the variable enumeration.
+
+NOTE: caller is responsible for calling VarFinishEnum even if function fails
+********************************************************************/
+extern "C" HRESULT DAPI VarStartEnum(
+    __in VARIABLES_HANDLE pVariables,
+    __out_bcount(VARIABLE_ENUM_HANDLE_BYTES) VARIABLE_ENUM_HANDLE* ppEnum,
+    __out VARIABLE_VALUE** ppValue
+    )
+{
+    UNREFERENCED_PARAMETER(pVariables);
+    UNREFERENCED_PARAMETER(ppEnum);
+    UNREFERENCED_PARAMETER(ppValue);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarNextVariable - continues the enumeration of the variable group. It
+                  will fail if any variables were added or removed
+                  during the enumeration.
+
+NOTE: caller is responsible for calling VarFinishEnum even if function fails
+********************************************************************/
+extern "C" HRESULT DAPI VarNextVariable(
+    __in_bcount(VARIABLE_ENUM_HANDLE_BYTES) VARIABLE_ENUM_HANDLE pEnum,
+    __out VARIABLE_VALUE** ppValue
+    )
+{
+    UNREFERENCED_PARAMETER(pEnum);
+    UNREFERENCED_PARAMETER(ppValue);
+    return E_NOTIMPL;
+}
+
+/********************************************************************
+VarFinishEnum - cleans up resources used for the enumeration.
+********************************************************************/
+extern "C" void DAPI VarFinishEnum(
+    __in_bcount(VARIABLE_ENUM_HANDLE_BYTES) VARIABLE_ENUM_HANDLE pEnum
+    )
+{
+    UNREFERENCED_PARAMETER(pEnum);
+}