74 lines
1.5 KiB
C++
74 lines
1.5 KiB
C++
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/*++
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Copyright (c) 2002 Microsoft Corporation
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Module Name:
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OmniPagePro11Uninstall.cpp
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Abstract:
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An OmniPagePro custom action returns an invalid error code.
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We cannot shim it directly, but we can shim the custom action,
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and then trap all calls to GetProcAddress() from MSIExec
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Notes:
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This is specific to OmniPage Pro 11 Uninstaller
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History:
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5/14/2002 mikrause Created
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--*/
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#include "precomp.h"
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#include <stdio.h>
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IMPLEMENT_SHIM_BEGIN(OmniPagePro11Uninstall)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(GetProcAddress)
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APIHOOK_ENUM_END
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typedef UINT (WINAPI *_pfn_MsiCustomAction)(MSIHANDLE msiHandle);
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_pfn_MsiCustomAction g_pfnOriginalULinkToPagis = NULL;
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UINT CALLBACK
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ULinkToPagisHook(
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MSIHANDLE msiHandle
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)
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{
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UINT uiRet = g_pfnOriginalULinkToPagis(msiHandle);
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if (uiRet == (UINT)-1) {
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uiRet = 0;
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}
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return uiRet;
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}
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FARPROC
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APIHOOK(GetProcAddress)(
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HMODULE hModule, // handle to DLL module
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LPCSTR lpProcName // function name
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)
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{
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if ((HIWORD(lpProcName) != 0) && (lstrcmpA(lpProcName, "ULinkToPagis") == 0)) {
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g_pfnOriginalULinkToPagis = (_pfn_MsiCustomAction) GetProcAddress(hModule, lpProcName);
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if (g_pfnOriginalULinkToPagis) {
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return (FARPROC)ULinkToPagisHook;
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}
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}
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return ORIGINAL_API(GetProcAddress)(hModule, lpProcName);
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}
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HOOK_BEGIN
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APIHOOK_ENTRY(KERNEL32.DLL, GetProcAddress )
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HOOK_END
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IMPLEMENT_SHIM_END
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