mono/tests/cas/demand/sucs4.cs

   1 using System;
   2 using System.Runtime.InteropServices;
   3 using System.Security;
   4 using System.Security.Permissions;
   5
   6 [SuppressUnmanagedCodeSecurity]
   7 public class Program {
   8
   9         // for Mono
  10         [DllImport ("libc", SetLastError=true)]
  11         [SuppressUnmanagedCodeSecurity]
  12         public static extern uint getuid ();
  13
  14         // for Microsoft
  15         [DllImport ("kernel32.dll", SetLastError=true)]
  16         [SuppressUnmanagedCodeSecurity]
  17         public static extern uint GetTickCount ();
  18
  19         static bool RunningOnMono ()
  20         {
  21                 bool mono = (Type.GetType ("Mono.Math.BigInteger") != null);
  22                 Console.WriteLine ("Running on {0} runtime...", mono ? "Mono" : "Microsoft");
  23                 return mono;
  24         }
  25
  26         static int Test ()
  27         {
  28                 try {
  29                         uint u = (RunningOnMono ()) ? getuid () : GetTickCount ();
  30                         Console.WriteLine ("*0* P/Invoke: {0}", u);
  31                         return 0;
  32                 }
  33                 catch (SecurityException se) {
  34                         Console.WriteLine ("*1* Unexpected SecurityException\n{0}", se);
  35                         return 1;
  36                 }
  37                 catch (Exception e) {
  38                         Console.WriteLine ("*2* Unexpected exception\n{0}", e);
  39                         return 2;
  40                 }
  41         }
  42
  43         [SecurityPermission (SecurityAction.Deny, UnmanagedCode=true)]
  44         static int Main ()
  45         {
  46                 return Test ();
  47         }
  48 }