valinet

/*
WinRing0 Fix(ish)
=================

Recently, there's been a ton of debate about how WinRing0 is the worst thing to have hit
the planet. A lot of overexaggerated crap, yet the conclusion seems to be that WinRing0
is the ultimate sin because it doesn't protect its device with a DACL that disallows
non-elevated processes from interacting with it. For now, until "security" becomes even
more "secure", the consensus is that it is okayish for apps to mess with arbitrary
memory regions (or at least, there's not much you can do about it), only when elevated tho.

valinet

// Copyright 2026 Valentin Radu
// License: GPLv2
//
// cl /nologo winring0.c kernel32.lib ntdll.lib /O1 /GS- /Gs9999999 /GF /kernel /link /DLL /ENTRY:DllMain /NODEFAULTLIB /SUBSYSTEM:windows /NOCOFFGRPINFO /ALIGN:16 /MERGE:.rdata=.text /MERGE:.pdata=.text /OUT:WinRing0x64.dll
//
// cl /nologo winring0.c kernel32.lib ntdll.lib /O1 /GS- /Gs9999999 /GF /kernel /link /DLL /ENTRY:DllMain /NODEFAULTLIB /SUBSYSTEM:windows /NOCOFFGRPINFO /ALIGN:16 /MERGE:.rdata=.text /MERGE:.pdata=.text /OUT:WinRing0.dll
//
#define WIN32_LEAN_AND_MEAN
#include <ntstatus.h>
#define WIN32_NO_STATUS

valinet

// cl /nologo truncate.c kernel32.lib shell32.lib /O1 /GS- /Gs9999999 /GF /kernel /link /ENTRY:main /NODEFAULTLIB /SUBSYSTEM:windows /NOCOFFGRPINFO /ALIGN:16 /MERGE:.rdata=.text /MERGE:.pdata=.text /OUT:truncate.exe

#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
#include <shellapi.h>
#include <stdio.h>

BOOL ParseUInt64W(const wchar_t* s, const wchar_t** end, ULONGLONG* out) {
    ULONGLONG v = 0;
    const wchar_t* p = s;