110 lines
2.1 KiB
C++
110 lines
2.1 KiB
C++
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/*++
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Copyright (c) 2001 Microsoft Corporation
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Module Name:
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ResumeWriter3.cpp
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Abstract:
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The setup of this app fails to register the OCX'es as it
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tries loading the DLL's with a hardcoded 'system' path.
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Corrected the path to the 'system32' path.
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Notes:
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This is specific to this app.
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History:
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05/22/2001 prashkud Created
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(ResumeWriter3)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(LoadLibraryA)
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APIHOOK_ENUM_END
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WCHAR g_wszSystemDir[MAX_PATH];
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/*++
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Hooks LoadLibraryA and changes the path that contains 'system' in it
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to the 'system32.
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--*/
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HMODULE
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APIHOOK(LoadLibraryA)(
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LPCSTR lpFileName
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)
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{
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CSTRING_TRY
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{
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// Bad string pointers can cause failures in CString.
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if (!IsBadStringPtrA(lpFileName, MAX_PATH))
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{
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CString csFileName(lpFileName);
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if (csFileName.Find(L"system") != -1)
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{
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// We have found 'system' in the path
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// Replace it with 'system32'.
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CString csName;
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csFileName.GetLastPathComponent(csName);
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CString csNewFileName(g_wszSystemDir);
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csNewFileName.AppendPath(csName);
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DPFN(eDbgLevelInfo, "[ResumeWriter3] changed %s to (%s)\n", lpFileName, csNewFileName.GetAnsi());
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return ORIGINAL_API(LoadLibraryA)(csNewFileName.GetAnsi());
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}
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}
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}
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CSTRING_CATCH
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{
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}
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return ORIGINAL_API(LoadLibraryA)(lpFileName);
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}
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/*++
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Cache the system directory when we get called in
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the beginning.
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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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{
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if (fdwReason == DLL_PROCESS_ATTACH)
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{
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GetSystemDirectory(g_wszSystemDir, MAX_PATH);
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}
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return TRUE;
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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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CALL_NOTIFY_FUNCTION
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APIHOOK_ENTRY(KERNEL32.DLL, LoadLibraryA)
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HOOK_END
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IMPLEMENT_SHIM_END
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