119 lines
2.7 KiB
C++
119 lines
2.7 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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SuperBike.cpp
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Abstract:
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The application attempts to convert the path to the executable into the directory
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containing the executable by replacing the last \ in the path with NULL.
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Unfortunately, they start not at the end of the string, but at the max length
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of the string. On Win9x the extra memory doesn't (coincidentally) have a \,
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so the proper string is passed as the CWD to CreateProcessA. On Whistler,
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the extra memory contains a \ so they end up changing nothing.
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History:
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10/26/2000 robkenny Created
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03/13/2001 robkenny Converted to CString
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(SuperBike)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(CreateProcessA)
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APIHOOK_ENUM_END
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/*++
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Make sure lpCurrentDirectory points to a directory, not an executable
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--*/
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BOOL
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APIHOOK(CreateProcessA)(
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LPCSTR lpApplicationName,
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LPSTR lpCommandLine,
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LPSECURITY_ATTRIBUTES lpProcessAttributes,
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LPSECURITY_ATTRIBUTES lpThreadAttributes,
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BOOL bInheritHandles,
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DWORD dwCreationFlags,
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LPVOID lpEnvironment,
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LPCSTR lpCurrentDirectory,
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LPSTARTUPINFOA lpStartupInfo,
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LPPROCESS_INFORMATION lpProcessInformation
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)
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{
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CSTRING_TRY
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{
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CString csDir(lpCurrentDirectory);
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char * duplicate = NULL;
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if (!csDir.IsEmpty())
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{
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DWORD dwFileAttr = GetFileAttributesW(csDir);
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if (dwFileAttr != -1 && // Doesn't exist
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( ! (FILE_ATTRIBUTE_DIRECTORY & dwFileAttr))) // Is not a directory
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{
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csDir.StripPath();
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}
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BOOL bStat = ORIGINAL_API(CreateProcessA)(
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lpApplicationName,
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lpCommandLine,
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lpProcessAttributes,
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lpThreadAttributes,
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bInheritHandles,
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dwCreationFlags,
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lpEnvironment,
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csDir.GetAnsiNIE(), // our corrected value
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lpStartupInfo,
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lpProcessInformation);
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return bStat;
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}
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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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BOOL bStat = ORIGINAL_API(CreateProcessA)(
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lpApplicationName,
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lpCommandLine,
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lpProcessAttributes,
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lpThreadAttributes,
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bInheritHandles,
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dwCreationFlags,
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lpEnvironment,
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lpCurrentDirectory,
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lpStartupInfo,
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lpProcessInformation);
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return bStat;
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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, CreateProcessA)
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HOOK_END
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IMPLEMENT_SHIM_END
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