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sysinfo.cpp: Replaced PEB read with ntdll function (OS version read)

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luci4 2026-04-11 20:28:11 +01:00 committed by GitHub
parent f463c128e3
commit 934bc34685
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1 changed files with 9 additions and 22 deletions
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31
rpcs3/util/sysinfo.cpp
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@ -7,12 +7,13 @@
#if defined(ARCH_ARM64)
#include "Emu/CPU/Backends/AArch64/AArch64Common.h"
#endif
#ifdef _WIN32
#include "windows.h"
#include "sysinfoapi.h"
#include "subauth.h"
#include "stringapiset.h"
#include "util/dyn_lib.hpp"
DYNAMIC_IMPORT("ntdll.dll", RtlGetVersion, NTSTATUS(OSVERSIONINFOW* lpVersionInformation));
#else
#include <unistd.h>
#include <sys/resource.h>
@ -794,29 +795,15 @@ utils::OS_version utils::get_OS_version()
#endif
#ifdef _WIN32
// GetVersionEx is deprecated, RtlGetVersion is kernel-mode only and AnalyticsInfo is UWP only.
// So we're forced to read PEB instead to get Windows version info. It's ugly but works.
#if defined(ARCH_X64)
constexpr DWORD peb_offset = 0x60;
const INT_PTR peb = __readgsqword(peb_offset);
res.version_major = *reinterpret_cast<const DWORD*>(peb + 0x118);
res.version_minor = *reinterpret_cast<const DWORD*>(peb + 0x11c);
res.version_patch = *reinterpret_cast<const WORD*>(peb + 0x120);
#else
HKEY hKey;
if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", 0, KEY_READ, &hKey) == ERROR_SUCCESS)
if (RtlGetVersion)
{
const auto [check_major, version_major] = read_reg_dword(hKey, "CurrentMajorVersionNumber");
const auto [check_minor, version_minor] = read_reg_dword(hKey, "CurrentMinorVersionNumber");
const auto [check_build, version_patch] = read_reg_sz(hKey, "CurrentBuildNumber");
if (check_major) res.version_major = version_major;
if (check_minor) res.version_minor = version_minor;
if (check_build) res.version_patch = stoi(version_patch);
RegCloseKey(hKey);
OSVERSIONINFOW osvi{};
osvi.dwOSVersionInfoSize = sizeof(osvi);
RtlGetVersion(&osvi);
res.version_major = osvi.dwMajorVersion;
res.version_minor = osvi.dwMinorVersion;
res.version_patch = osvi.dwBuildNumber;
}
#endif
#elif defined (__APPLE__)
res.version_major = Darwin_Version::getNSmajorVersion();
res.version_minor = Darwin_Version::getNSminorVersion();