???using System;
using System.Reflection;
using System.Runtime.InteropServices;

namespace ConsoleApplication1 {
	class ProgramLoader {
		[DllImport("/usr/lib/virtualbox/VBoxXPCOMC.so")]
		private static extern Int32 RTR3InitAndSUPLib();

		static unsafe int Main(string[] args) {
			if (Environment.OSVersion.Platform == PlatformID.Unix) {
				Console.WriteLine("UNIX based OS detected, doing some magic...");
				int init = RTR3InitAndSUPLib();
				if (init != 0) throw new COMException("Failed to initialize VirtualBox driver", init);
				Unix_setuid();
				Assembly.LoadFile("Interop.VirtualBox.XPCOM.dll");
			}
			return Main2(args);
		}

		static int Main2(String[] args) {
			ProgramRun p = new ProgramRun();
			return p.Run(args);
		}

		private static void Unix_setuid() {
			uint uid = Mono.Unix.Native.Syscall.getuid();
			uint euid = Mono.Unix.Native.Syscall.geteuid();
			uint gid = Mono.Unix.Native.Syscall.getgid();
			uint egid = Mono.Unix.Native.Syscall.getegid();
			Console.WriteLine("Running as user {0} effective {1} group {2} effective {3}", uid, euid, gid, egid);
			if (gid != egid) {
				Console.WriteLine("Set group ID: {0}", gid);
				Mono.Unix.Native.Syscall.setregid(gid, gid);
			}
			if (uid != euid) {
				Console.WriteLine("Set user ID: {0}", uid);
				Mono.Unix.Native.Syscall.setreuid(uid, uid);
			}
		}
	}
}