mirror of
https://github.com/reactos/reactos.git
synced 2024-11-01 12:26:32 +00:00
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
|
/*
|
||
|
|
* PROJECT: ReactOS user32.dll and win32k.sys
|
||
|
|
* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
|
||
|
|
* PURPOSE: RtlGetExpWinVer function
|
||
|
|
* COPYRIGHT: Copyright 2019 James Tabor <james.tabor@reactos.org>
|
||
|
|
* Copyright 2024 Katayama Hirofumi MZ <katayama.hirofumi.mz@gmail.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef _WIN32K_
|
||
|
|
#include <win32k.h>
|
||
|
|
DBG_DEFAULT_CHANNEL(UserMisc);
|
||
|
|
#else
|
||
|
|
#include <user32.h>
|
||
|
|
#include <wine/debug.h>
|
||
|
|
WINE_DEFAULT_DEBUG_CHANNEL(user32);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Get the expected OS version from the application module */
|
||
|
|
ULONG
|
||
|
|
RtlGetExpWinVer(_In_ PVOID BaseAddress)
|
||
|
|
{
|
||
|
|
ULONG dwMajorVersion = 3, dwMinorVersion = 10; /* Set default to Windows 3.10 (WINVER_WIN31) */
|
||
|
|
PIMAGE_NT_HEADERS pNTHeader;
|
||
|
|
ULONG_PTR AlignedAddress = (ULONG_PTR)BaseAddress;
|
||
|
|
|
||
|
|
TRACE("(%p)\n", BaseAddress);
|
||
|
|
|
||
|
|
/* Remove the magic flag for non-mapped images */
|
||
|
|
if (AlignedAddress & 1)
|
||
|
|
AlignedAddress = (AlignedAddress & ~1);
|
||
|
|
|
||
|
|
if (AlignedAddress && !LOWORD(AlignedAddress))
|
||
|
|
{
|
||
|
|
pNTHeader = RtlImageNtHeader((PVOID)AlignedAddress);
|
||
|
|
if (pNTHeader)
|
||
|
|
{
|
||
|
|
dwMajorVersion = pNTHeader->OptionalHeader.MajorSubsystemVersion;
|
||
|
|
if (dwMajorVersion == 1)
|
||
|
|
dwMajorVersion = 3;
|
||
|
|
else
|
||
|
|
dwMinorVersion = pNTHeader->OptionalHeader.MinorSubsystemVersion;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return MAKEWORD(dwMinorVersion, dwMajorVersion);
|
||
|
|
}
|