Source code of Windows XP (NT5)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

96 lines
2.5 KiB

/*++
Copyright (c) 2001 Microsoft Corporation
Module Name:
ForceSeparateVDM.cpp
Abstract:
Force child processes to use a separate VDM.
This can be useful if the parent process wants to wait on a handle returned
by CreateProcess. This only works because of a hack in the VDM that returns
and actual thread handle that will go away along with the process if a VDM
doesn't already exist.
Notes:
This is a general purpose shim.
History:
06/14/2001 linstev Created
--*/
#include "precomp.h"
IMPLEMENT_SHIM_BEGIN(ForceSeparateVDM)
#include "ShimHookMacro.h"
APIHOOK_ENUM_BEGIN
APIHOOK_ENUM_ENTRY(CreateProcessA)
APIHOOK_ENUM_ENTRY(CreateProcessW)
APIHOOK_ENUM_END
BOOL
APIHOOK(CreateProcessA)(
LPCSTR lpApplicationName,
LPSTR lpCommandLine,
LPSECURITY_ATTRIBUTES lpProcessAttributes,
LPSECURITY_ATTRIBUTES lpThreadAttributes,
BOOL bInheritHandles,
DWORD dwCreationFlags,
LPVOID lpEnvironment,
LPSTR lpCurrentDirectory,
LPSTARTUPINFOA lpStartupInfo,
LPPROCESS_INFORMATION lpProcessInformation
)
{
if (!(dwCreationFlags & CREATE_SEPARATE_WOW_VDM)) {
LOGN(eDbgLevelWarning, "Added CREATE_SEPARATE_WOW_VDM to CreateProcessA");
}
return ORIGINAL_API(CreateProcessA)(lpApplicationName, lpCommandLine,
lpProcessAttributes, lpThreadAttributes, bInheritHandles,
dwCreationFlags | CREATE_SEPARATE_WOW_VDM,
lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation);
}
BOOL
APIHOOK(CreateProcessW)(
LPCWSTR lpApplicationName,
LPWSTR lpCommandLine,
LPSECURITY_ATTRIBUTES lpProcessAttributes,
LPSECURITY_ATTRIBUTES lpThreadAttributes,
BOOL bInheritHandles,
DWORD dwCreationFlags,
LPVOID lpEnvironment,
LPWSTR lpCurrentDirectory,
LPSTARTUPINFOW lpStartupInfo,
LPPROCESS_INFORMATION lpProcessInformation
)
{
if (!(dwCreationFlags & CREATE_SEPARATE_WOW_VDM)) {
LOGN(eDbgLevelWarning, "Added CREATE_SEPARATE_WOW_VDM to CreateProcessW");
}
return ORIGINAL_API(CreateProcessW)(lpApplicationName, lpCommandLine,
lpProcessAttributes, lpThreadAttributes, bInheritHandles,
dwCreationFlags | CREATE_SEPARATE_WOW_VDM,
lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation);
}
/*++
Register hooked functions
--*/
HOOK_BEGIN
APIHOOK_ENTRY(KERNEL32.DLL, CreateProcessA)
APIHOOK_ENTRY(KERNEL32.DLL, CreateProcessW)
HOOK_END
IMPLEMENT_SHIM_END