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137 lines
2.5 KiB
137 lines
2.5 KiB
/*++
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Copyright (C) Microsoft Corporation, 1995 - 1999
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All rights reserved.
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Module Name:
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wow64.h
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Abstract:
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printui wow64 related functions.
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Author:
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Lazar Ivanov (LazarI) 10-Mar-2000
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Revision History:
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--*/
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <windows.h>
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#include <tchar.h>
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#include "wow64.h"
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#define ARRAYSIZE(x) (sizeof(x)/sizeof(x[0]))
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//
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// Win64 APIs, types and data structures.
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//
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ClientVersion
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OSEnv_GetClientVer(
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VOID
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)
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{
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return(sizeof(ULONG_PTR));
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}
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ServerVersion
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OSEnv_GetServerVer(
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VOID
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)
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{
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ULONG_PTR ul;
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NTSTATUS st;
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ServerVersion serverVersion;
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st = NtQueryInformationProcess(NtCurrentProcess(),
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ProcessWow64Information, &ul, sizeof(ul), NULL);
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if( NT_SUCCESS(st) )
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{
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// If this call succeeds, we're on Win2000 or newer machines.
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if( 0 != ul )
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{
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// 32-bit code running on Win64
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serverVersion = THUNKVERSION;
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}
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else
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{
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// 32-bit code running on Win2000 or later 32-bit OS
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serverVersion = NATIVEVERSION;
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}
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}
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else
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{
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serverVersion = NATIVEVERSION;
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}
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return serverVersion;
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}
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#if 0 // debug code
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BOOL
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IsRunningInSPLWOW(
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VOID
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)
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{
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TCHAR szSysDir[MAX_PATH];
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TCHAR szSplWOW64Name[MAX_PATH];
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TCHAR szModName[MAX_PATH];
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GetWindowsDirectory(szSysDir, ARRAYSIZE(szSysDir));
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_tcscpy(szSplWOW64Name, szSysDir);
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_tcscat(szSplWOW64Name, TEXT("\\splwow64.exe"));
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GetModuleFileName(NULL, szModName, ARRAYSIZE(szModName));
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return (0 == _tcsicmp(szSplWOW64Name, szModName));
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}
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#endif // 0
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BOOL
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IsRunningWOW64(
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VOID
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)
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{
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// return !IsRunningInSPLWOW();
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return (RUN32BINVER == OSEnv_GetClientVer() &&
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THUNKVERSION == OSEnv_GetServerVer());
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}
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PlatformType
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GetCurrentPlatform(
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VOID
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)
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{
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if (RUN64BINVER == OSEnv_GetClientVer())
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{
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// this is a native 64bit process - i.e. the platform is IA64
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return kPlatform_IA64;
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}
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else
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{
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// this is 32 bit process. it can be either native - i.e. the platform is i386 -
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// or wow64 - i.e. the platform is again IA64.
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if (THUNKVERSION == OSEnv_GetServerVer())
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{
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// the process is wow64 - the platform is IA64
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return kPlatform_IA64;
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}
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else
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{
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// the process is native - i.e. the platform is x86
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return kPlatform_x86;
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}
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}
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}
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