112 lines
1.8 KiB
C++
112 lines
1.8 KiB
C++
/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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EmulateVerQueryValue.cpp
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Abstract:
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This shim fixes a null version length buffer pointer.
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Notes:
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This is a general purpose shim.
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History:
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01/03/2000 jdoherty Revised coding style.
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11/28/2000 jdoherty Converted to framework version 2
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(EmulateVerQueryValue)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(VerQueryValueA)
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APIHOOK_ENUM_ENTRY(VerQueryValueW)
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APIHOOK_ENUM_END
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/*++
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Fix the null version length buffer pointer.
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--*/
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BOOL
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APIHOOK(VerQueryValueA)(
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const LPVOID pBlock,
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LPSTR lpSubBlock,
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LPVOID *lplpBuffer,
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PUINT puLen
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)
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{
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BOOL bRet;
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UINT nLen;
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if (!puLen) {
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puLen = &nLen;
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DPFN( eDbgLevelError, "[APIHook_VerQueryValueA] Null puLen param. Fixed.\n");
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}
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bRet = ORIGINAL_API(VerQueryValueA)(
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pBlock,
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lpSubBlock,
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lplpBuffer,
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puLen);
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return bRet;
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}
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/*++
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Fix the null version length buffer pointer. Unicode version.
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--*/
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BOOL
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APIHOOK(VerQueryValueW)(
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const LPVOID pBlock,
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LPWSTR lpSubBlock,
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LPVOID *lplpBuffer,
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PUINT puLen
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)
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{
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BOOL bRet;
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UINT nLen;
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if (!puLen) {
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puLen = &nLen;
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DPFN( eDbgLevelError, "[APIHook_VerQueryValueW] Null puLen param. Fixed.\n");
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}
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bRet = ORIGINAL_API(VerQueryValueW)(
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pBlock,
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lpSubBlock,
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lplpBuffer,
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puLen);
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return bRet;
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}
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/*++
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Register hooked functions
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--*/
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HOOK_BEGIN
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APIHOOK_ENTRY(VERSION.DLL, VerQueryValueA)
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APIHOOK_ENTRY(VERSION.DLL, VerQueryValueW)
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HOOK_END
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IMPLEMENT_SHIM_END
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