119 lines
2.1 KiB
C++
119 lines
2.1 KiB
C++
/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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PetzForceCritSecRelease.cpp
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Abstract:
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This DLL takes care of a Thread that is exiting without performing a
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LeaveCriticalSection on a critical section it owns.
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Notes:
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This is a application specific shim.
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History:
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04/00/2000 a-chcoff Created
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(Petz)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(_endthread)
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APIHOOK_ENUM_ENTRY(ShellExecuteA)
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APIHOOK_ENUM_END
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LPCRITICAL_SECTION g_pCritSectToRelease;
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HINSTANCE
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APIHOOK(ShellExecuteA)(
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HWND hwnd,
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LPCSTR lpVerb,
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LPCSTR lpFile,
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LPCSTR lpParameters,
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LPCSTR lpDirectory,
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INT nShowCmd)
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{
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CSTRING_TRY
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{
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CString csFile(lpFile);
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csFile.Replace(L"SYSTEM\\PETZ", L"SYSTEM32\\PETZ");
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return ORIGINAL_API(ShellExecuteA)(
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hwnd,
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lpVerb,
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csFile.GetAnsi(),
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lpParameters,
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lpDirectory,
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nShowCmd);
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}
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CSTRING_CATCH
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{
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// Do nothing
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}
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return ORIGINAL_API(ShellExecuteA)(
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hwnd,
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lpVerb,
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lpFile,
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lpParameters,
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lpDirectory,
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nShowCmd);
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}
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VOID
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APIHOOK(_endthread)(void)
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{
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//Don't let the thread orphan a critical section.
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LeaveCriticalSection(g_pCritSectToRelease);
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ORIGINAL_API(_endthread)();
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}
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/*++
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Register hooked functions
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--*/
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BOOL
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NOTIFY_FUNCTION(
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DWORD fdwReason)
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{
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if (fdwReason == DLL_PROCESS_ATTACH)
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{
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CSTRING_TRY
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{
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CString csCl(COMMAND_LINE);
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WCHAR *unused;
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g_pCritSectToRelease = (LPCRITICAL_SECTION) wcstol(csCl, &unused, 10);
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}
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CSTRING_CATCH
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{
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return FALSE;
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}
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}
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return TRUE;
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}
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HOOK_BEGIN
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CALL_NOTIFY_FUNCTION
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APIHOOK_ENTRY(MSVCRT.DLL, _endthread)
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APIHOOK_ENTRY(SHELL32.DLL, ShellExecuteA)
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HOOK_END
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IMPLEMENT_SHIM_END
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