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romrepomgr/RomRepoMgr.Settings/Interop/DetectOS.cs

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C#
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// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename : DetectOS.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Interop services.
//
// --[ Description ] ----------------------------------------------------------
//
// Detects underlying operating system.
//
// --[ License ] --------------------------------------------------------------
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2021 Natalia Portillo
// ****************************************************************************/
using System;
using System.Diagnostics;
using System.IO;
using System.Runtime.InteropServices;
using System.Security.Principal;
using RomRepoMgr.Settings.Resources;
namespace Aaru.CommonTypes.Interop
{
public static class DetectOS
{
public static readonly bool IsMono =
RuntimeInformation.FrameworkDescription.StartsWith("Mono", StringComparison.Ordinal);
public static readonly bool IsNetFramework =
RuntimeInformation.FrameworkDescription.StartsWith(".NET Framework", StringComparison.Ordinal);
public static readonly bool IsNetCore =
RuntimeInformation.FrameworkDescription.StartsWith(".NET Core", StringComparison.Ordinal);
public static readonly bool IsNetNative =
RuntimeInformation.FrameworkDescription.StartsWith(".NET Native", StringComparison.Ordinal);
/// <summary>Checks if the underlying runtime runs in 64-bit mode</summary>
public static readonly bool Is64Bit = IntPtr.Size == 8;
/// <summary>Checks if the underlying runtime runs in 32-bit mode</summary>
public static readonly bool Is32Bit = IntPtr.Size == 4;
public static bool IsWindows => GetRealPlatformID() == PlatformID.Win32NT ||
GetRealPlatformID() == PlatformID.Win32S ||
GetRealPlatformID() == PlatformID.Win32Windows ||
GetRealPlatformID() == PlatformID.WinCE ||
GetRealPlatformID() == PlatformID.WindowsPhone ||
GetRealPlatformID() == PlatformID.Xbox;
public static bool IsAdmin
{
get
{
if(!OperatingSystem.IsWindows())
return Environment.UserName == "root";
bool isAdmin;
WindowsIdentity user = null;
try
{
user = WindowsIdentity.GetCurrent();
var principal = new WindowsPrincipal(user);
isAdmin = principal.IsInRole(WindowsBuiltInRole.Administrator);
}
catch(UnauthorizedAccessException)
{
isAdmin = false;
}
catch(Exception)
{
isAdmin = false;
}
finally
{
user?.Dispose();
}
return isAdmin;
}
}
[DllImport("libc", SetLastError = true)]
static extern int uname(out utsname name);
[DllImport("libc", SetLastError = true, EntryPoint = "sysctlbyname", CharSet = CharSet.Ansi)]
static extern int OSX_sysctlbyname(string name, IntPtr oldp, IntPtr oldlenp, IntPtr newp, uint newlen);
/// <summary>Gets the real platform ID, not the incomplete .NET framework one</summary>
/// <returns>Platform ID</returns>
/// <exception cref="Exception">Unhandled exception</exception>
public static PlatformID GetRealPlatformID()
{
if((int)Environment.OSVersion.Platform < 4 ||
(int)Environment.OSVersion.Platform == 5)
return (PlatformID)(int)Environment.OSVersion.Platform;
int error = uname(out utsname unixname);
if(error != 0)
throw new Exception(string.Format(Localization.Unhandled_exception_uname, Marshal.GetLastWin32Error()));
switch(unixname.sysname)
{
// TODO: Differentiate Linux, Android, Tizen
case "Linux":
{
#if __ANDROID__
return PlatformID.Android;
#else
return PlatformID.Linux;
#endif
}
case "Darwin":
{
IntPtr pLen = Marshal.AllocHGlobal(sizeof(int));
int osxError = OSX_sysctlbyname("hw.machine", IntPtr.Zero, pLen, IntPtr.Zero, 0);
if(osxError != 0)
{
Marshal.FreeHGlobal(pLen);
throw new Exception(string.Format(Localization.Unhandled_exception_uname,
Marshal.GetLastWin32Error()));
}
int length = Marshal.ReadInt32(pLen);
IntPtr pStr = Marshal.AllocHGlobal(length);
osxError = OSX_sysctlbyname("hw.machine", pStr, pLen, IntPtr.Zero, 0);
if(osxError != 0)
{
Marshal.FreeHGlobal(pStr);
Marshal.FreeHGlobal(pLen);
throw new Exception(string.Format(Localization.Unhandled_exception_uname,
Marshal.GetLastWin32Error()));
}
string machine = Marshal.PtrToStringAnsi(pStr);
Marshal.FreeHGlobal(pStr);
Marshal.FreeHGlobal(pLen);
if(machine != null &&
(machine.StartsWith("iPad", StringComparison.Ordinal) ||
machine.StartsWith("iPod", StringComparison.Ordinal) ||
machine.StartsWith("iPhone", StringComparison.Ordinal)))
return PlatformID.iOS;
return PlatformID.MacOSX;
}
case "GNU": return PlatformID.Hurd;
case "FreeBSD":
case "GNU/kFreeBSD": return PlatformID.FreeBSD;
case "DragonFly": return PlatformID.DragonFly;
case "Haiku": return PlatformID.Haiku;
case "HP-UX": return PlatformID.HPUX;
case "AIX": return PlatformID.AIX;
case "OS400": return PlatformID.OS400;
case "IRIX":
case "IRIX64": return PlatformID.IRIX;
case "Minix": return PlatformID.Minix;
case "NetBSD": return PlatformID.NetBSD;
case "NONSTOP_KERNEL": return PlatformID.NonStop;
case "OpenBSD": return PlatformID.OpenBSD;
case "QNX": return PlatformID.QNX;
case "SINIX-Y": return PlatformID.SINIX;
case "SunOS": return PlatformID.Solaris;
case "OSF1": return PlatformID.Tru64;
case "ULTRIX": return PlatformID.Ultrix;
case "SCO_SV": return PlatformID.OpenServer;
case "UnixWare": return PlatformID.UnixWare;
case "Interix":
case "UWIN-W7": return PlatformID.Win32NT;
default:
{
if(unixname.sysname.StartsWith("CYGWIN_NT", StringComparison.Ordinal) ||
unixname.sysname.StartsWith("MINGW32_NT", StringComparison.Ordinal) ||
unixname.sysname.StartsWith("MSYS_NT", StringComparison.Ordinal) ||
unixname.sysname.StartsWith("UWIN", StringComparison.Ordinal))
return PlatformID.Win32NT;
return PlatformID.Unknown;
}
}
}
/// <summary>Gets a string for the current operating system REAL version (handles Darwin 1.4 and Windows 10 falsifying)</summary>
/// <returns>Current operating system version</returns>
public static string GetVersion()
{
string environ = Environment.OSVersion.Version.ToString();
switch(GetRealPlatformID())
{
case PlatformID.MacOSX:
if(Environment.OSVersion.Version.Major != 1)
return $"10.{Environment.OSVersion.Version.Major - 4}.{Environment.OSVersion.Version.Minor}";
switch(Environment.OSVersion.Version.Minor)
{
case 3: return "10.0";
case 4: return "10.1";
}
goto default;
case PlatformID.Win32NT:
// From Windows 8.1 the reported version is simply falsified...
if((Environment.OSVersion.Version.Major == 6 && Environment.OSVersion.Version.Major >= 2) ||
Environment.OSVersion.Version.Major > 6)
return FileVersionInfo.
GetVersionInfo(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.System),
"KERNEL32.DLL")).ProductVersion;
return environ;
default: return environ;
}
}
/// <summary>From a platform ID and version returns a human-readable version</summary>
/// <param name="id">Platform ID</param>
/// <param name="version">Version number</param>
/// <returns>Operating system name</returns>
public static string GetPlatformName(PlatformID id, string version = null)
{
switch(id)
{
case PlatformID.AIX: return "AIX";
case PlatformID.Android: return "Android";
case PlatformID.DragonFly: return "DragonFly BSD";
case PlatformID.FreeBSD: return "FreeBSD";
case PlatformID.Haiku: return "Haiku";
case PlatformID.HPUX: return "HP/UX";
case PlatformID.Hurd: return "Hurd";
case PlatformID.iOS: return "iOS";
case PlatformID.IRIX: return "IRIX";
case PlatformID.Linux:
if(!File.Exists("/proc/version"))
return "Linux";
string s = File.ReadAllText("/proc/version");
return s.Contains("Microsoft") || s.Contains("WSL") ? "Windows Subsystem for Linux" : "Linux";
case PlatformID.MacOSX:
if(string.IsNullOrEmpty(version))
return "macOS";
string[] pieces = version.Split('.');
if(pieces.Length < 2 ||
!int.TryParse(pieces[1], out int minor))
return "macOS";
if(minor >= 12)
return "macOS";
if(minor >= 8)
return "OS X";
return "Mac OS X";
case PlatformID.Minix: return "MINIX";
case PlatformID.NetBSD: return "NetBSD";
case PlatformID.NonStop: return "NonStop OS";
case PlatformID.OpenBSD: return "OpenBSD";
case PlatformID.OpenServer: return "SCO OpenServer";
case PlatformID.OS400: return "OS/400";
case PlatformID.PlayStation3: return "Sony CellOS";
case PlatformID.PlayStation4: return "Sony Orbis OS";
case PlatformID.QNX: return "QNX";
case PlatformID.SINIX: return "SINIX";
case PlatformID.Solaris: return "Sun Solaris";
case PlatformID.Tizen: return "Samsung Tizen";
case PlatformID.Tru64: return "Tru64 UNIX";
case PlatformID.Ultrix: return "Ultrix";
case PlatformID.Unix: return "UNIX";
case PlatformID.UnixWare: return "SCO UnixWare";
case PlatformID.Wii: return "Nintendo Wii";
case PlatformID.WiiU: return "Nintendo Wii U";
case PlatformID.Win32NT:
if(string.IsNullOrEmpty(version))
return "Windows NT/2000/XP/Vista/7/10";
if(version.StartsWith("3.", StringComparison.Ordinal) ||
version.StartsWith("4.", StringComparison.Ordinal))
return "Windows NT";
if(version.StartsWith("5.0", StringComparison.Ordinal))
return "Windows 2000";
if(version.StartsWith("5.1", StringComparison.Ordinal))
return "Windows XP";
if(version.StartsWith("5.2", StringComparison.Ordinal))
return "Windows 2003";
if(version.StartsWith("6.0", StringComparison.Ordinal))
return "Windows Vista";
if(version.StartsWith("6.1", StringComparison.Ordinal))
return "Windows 7";
if(version.StartsWith("6.2", StringComparison.Ordinal))
return "Windows 8";
if(version.StartsWith("6.3", StringComparison.Ordinal))
return "Windows 8.1";
if(version.StartsWith("10.0", StringComparison.Ordinal))
return "Windows 10";
return "Windows NT/2000/XP/Vista/7/10";
case PlatformID.Win32S: return "Windows 3.x with win32s";
case PlatformID.Win32Windows:
if(string.IsNullOrEmpty(version))
return "Windows 9x/Me";
if(version.StartsWith("4.0", StringComparison.Ordinal))
return "Windows 95";
if(version.StartsWith("4.10.2222", StringComparison.Ordinal))
return "Windows 98 SE";
if(version.StartsWith("4.1", StringComparison.Ordinal))
return "Windows 98";
if(version.StartsWith("4.9", StringComparison.Ordinal))
return "Windows Me";
return "Windows 9x/Me";
case PlatformID.WinCE: return "Windows CE/Mobile";
case PlatformID.WindowsPhone: return "Windows Phone";
case PlatformID.Xbox: return "Xbox OS";
case PlatformID.zOS: return "z/OS";
default: return id.ToString();
}
}
/// <summary>POSIX uname structure, size from OSX, big enough to handle extra fields</summary>
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
struct utsname
{
/// <summary>System name</summary>
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 256)]
public readonly string sysname;
/// <summary>Node name</summary>
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 256)]
public readonly string nodename;
/// <summary>Release level</summary>
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 256)]
public readonly string release;
/// <summary>Version level</summary>
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 256)]
public readonly string version;
/// <summary>Hardware level</summary>
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 256)]
public readonly string machine;
}
}
}
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