102 lines
1.4 KiB
C++
102 lines
1.4 KiB
C++
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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MathBlaster9_12.cpp
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Abstract:
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App requires lookaside on VirtualAllocs...
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Notes:
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This is an appspecific shim.
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History:
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10/10/2000 linstev Created
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(MathBlaster9_12)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(VirtualAlloc)
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APIHOOK_ENUM_ENTRY(VirtualFree)
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APIHOOK_ENUM_END
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LPVOID g_pLast = NULL;
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/*++
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Use the cached value.
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--*/
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LPVOID
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APIHOOK(VirtualAlloc)(
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LPVOID lpAddress,
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DWORD dwSize,
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DWORD flAllocationType,
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DWORD flProtect
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)
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{
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LPVOID pRet = 0;
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if (!lpAddress && g_pLast)
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{
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pRet = ORIGINAL_API(VirtualAlloc)(g_pLast, dwSize, flAllocationType, flProtect);
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}
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if (!pRet)
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{
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pRet = ORIGINAL_API(VirtualAlloc)(lpAddress, dwSize, flAllocationType, flProtect);
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}
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return pRet;
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}
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/*++
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Use the cached value.
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--*/
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BOOL
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APIHOOK(VirtualFree)(
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LPVOID lpAddress,
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DWORD dwSize,
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DWORD dwFreeType )
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{
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BOOL bRet = ORIGINAL_API(VirtualFree)(lpAddress, dwSize, dwFreeType);
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if (bRet)
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{
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g_pLast = lpAddress;
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}
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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(Kernel32.DLL, VirtualAlloc )
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APIHOOK_ENTRY(Kernel32.DLL, VirtualFree )
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HOOK_END
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IMPLEMENT_SHIM_END
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