100 lines
1.8 KiB
C++
100 lines
1.8 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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SierraCartRacing.cpp
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Abstract:
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A hack for Cart Racing (Sierra). They call InitializeSecurityDescriptor
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which trashes an old stack pointer which is later needed. They call
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CreateSemaphore with an invalid security descriptor:
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lpSemaphoreAttributes->lpSecurityDescriptor == 1
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This looks like a semaphore they use to prevent getting executed twice,
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Note, although it doesn't matter if the Semaphore doesn't get created,
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I thought it better if this worked.
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Fix:
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CreateSemaphore: set the security attributes to NULL (default)
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InitializeSecurityDescriptor: do nothing, since it's not needed anymore
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Notes:
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This is an app specific shim.
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History:
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11/03/1999 linstev Created
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(SierraCartRacing)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(CreateSemaphoreA)
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APIHOOK_ENUM_ENTRY(InitializeSecurityDescriptor)
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APIHOOK_ENUM_END
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/*++
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Use the default security descriptor.
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--*/
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HANDLE
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APIHOOK(CreateSemaphoreA)(
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LPSECURITY_ATTRIBUTES lpSemaphoreAttributes,
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LONG lInitialCount,
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LONG lMaximumCount,
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LPCSTR lpName
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)
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{
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// Use default security descriptor
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return ORIGINAL_API(CreateSemaphoreA)(
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NULL,
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lInitialCount,
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lMaximumCount,
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lpName);
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}
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/*++
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Returns false for InitializeSecurityDescriptor. i.e. do nothing so we don't
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touch the stack.
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--*/
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BOOL
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APIHOOK(InitializeSecurityDescriptor)(
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PSECURITY_DESCRIPTOR pSecurityDescriptor,
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DWORD dwRevision
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)
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{
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return FALSE;
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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, CreateSemaphoreA)
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APIHOOK_ENTRY(ADVAPI32.DLL, InitializeSecurityDescriptor)
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HOOK_END
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IMPLEMENT_SHIM_END
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