Ivo@0: using System;
Ivo@0: using System.Reflection;
Ivo@0: using System.Runtime.InteropServices;
Ivo@0: 
Ivo@0: namespace ConsoleApplication1 {
Ivo@0: 	class ProgramLoader {
Ivo@0: 		[DllImport("/usr/lib/virtualbox/VBoxXPCOMC.so")]
Ivo@0: 		private static extern Int32 RTR3InitAndSUPLib();
Ivo@0: 
Ivo@0: 		static unsafe int Main(string[] args) {
Ivo@0: 			if (Environment.OSVersion.Platform == PlatformID.Unix) {
Ivo@0: 				Console.WriteLine("UNIX based OS detected, doing some magic...");
Ivo@0: 				int init = RTR3InitAndSUPLib();
Ivo@0: 				if (init != 0) throw new COMException("Failed to initialize VirtualBox driver", init);
Ivo@0: 				Unix_setuid();
Ivo@0: 				Assembly.LoadFile("Interop.VirtualBox.XPCOM.dll");
Ivo@0: 			}
Ivo@0: 			return Main2(args);
Ivo@0: 		}
Ivo@0: 
Ivo@0: 		static int Main2(String[] args) {
Ivo@0: 			ProgramRun p = new ProgramRun();
Ivo@0: 			return p.Run(args);
Ivo@0: 		}
Ivo@0: 
Ivo@0: 		private static void Unix_setuid() {
Ivo@0: 			uint uid = Mono.Unix.Native.Syscall.getuid();
Ivo@0: 			uint euid = Mono.Unix.Native.Syscall.geteuid();
Ivo@3: 			uint gid = Mono.Unix.Native.Syscall.getgid();
Ivo@3: 			uint egid = Mono.Unix.Native.Syscall.getegid();
Ivo@3: 			Console.WriteLine("Running as user {0} effective {1} group {2} effective {3}", uid, euid, gid, egid);
Ivo@3: 			if (gid != egid) {
Ivo@3: 				Console.WriteLine("Set group ID: {0}", gid);
Ivo@3: 				Mono.Unix.Native.Syscall.setregid(gid, gid);
Ivo@3: 			}
Ivo@0: 			if (uid != euid) {
Ivo@0: 				Console.WriteLine("Set user ID: {0}", uid);
Ivo@0: 				Mono.Unix.Native.Syscall.setreuid(uid, uid);
Ivo@0: 			}
Ivo@0: 		}
Ivo@0: 	}
Ivo@0: }