class/corlib/System.Runtime.InteropServices/RuntimeEnvironment.cs

   1 //
   2 // System.Runtime.InteropServices/RuntimeEnvironment.cs
   3 //
   4 // Authors:
   5 //      Dominik Fretz (roboto@gmx.net)
   6 //      Sebastien Pouliot (sebastien@ximian.com)
   7 //
   8 // (C) 2003 Dominik Fretz
   9 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System.IO;
  32 using System.Reflection;
  33 using System.Runtime.InteropServices;
  34 using System.Security;
  35 using System.Security.Permissions;
  36
  37 namespace System.Runtime.InteropServices
  38 {
  39         [ComVisible (true)]
  40         public class RuntimeEnvironment
  41         {
  42                 public RuntimeEnvironment ()
  43                 {
  44                 }
  45
  46                 public static string SystemConfigurationFile {
  47                         get {
  48                                 // GetMachineConfigPath is internal and not protected by CAS
  49                                 string path = Environment.GetMachineConfigPath ();
  50                                 if (SecurityManager.SecurityEnabled) {
  51                                         new FileIOPermission (FileIOPermissionAccess.PathDiscovery, path).Demand ();
  52                                 }
  53                                 return path;
  54                         }
  55                 }
  56
  57                 public static bool FromGlobalAccessCache (Assembly a)
  58                 {
  59                         // yes, this will throw a NullReferenceException (just like MS, reported as ...)
  60                         return a.GlobalAssemblyCache;
  61                 }
  62
  63                 public static string GetRuntimeDirectory ()
  64                 {
  65                         return Path.GetDirectoryName (typeof (int).Assembly.Location);
  66                 }
  67
  68                 [SecurityPermission (SecurityAction.Demand, UnmanagedCode = true)]
  69                 public static string GetSystemVersion ()
  70                 {
  71                         return "v" + Environment.Version.Major + "." + Environment.Version.Minor + "." + Environment.Version.Build;
  72                 }
  73         }
  74 }