class/corlib/System.Security.Policy/Gac.cs

   1 //
   2 // System.Security.Policy.Gac
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29
  30 using System.Security.Permissions;
  31 using System.Runtime.InteropServices;
  32
  33 namespace System.Security.Policy {
  34
  35         [Serializable]
  36         [ComVisible (true)]
  37         public sealed class GacInstalled : IIdentityPermissionFactory, IBuiltInEvidence {
  38
  39                 public GacInstalled ()
  40                 {
  41                 }
  42
  43                 public object Copy ()
  44                 {
  45                         return (object) new GacInstalled ();
  46                 }
  47
  48                 public IPermission CreateIdentityPermission (Evidence evidence)
  49                 {
  50                         return new GacIdentityPermission ();
  51                 }
  52
  53                 public override bool Equals (object o)
  54                 {
  55                         if (o == null)
  56                                 return false;
  57                         return (o is GacInstalled);
  58                 }
  59
  60                 public override int GetHashCode ()
  61                 {
  62                         return 0; // as documented
  63                 }
  64
  65                 public override string ToString ()
  66                 {
  67                         SecurityElement se = new SecurityElement (GetType ().FullName);
  68                         se.AddAttribute ("version", "1");
  69                         return se.ToString ();
  70                 }
  71
  72                 // IBuiltInEvidence
  73
  74                 int IBuiltInEvidence.GetRequiredSize (bool verbose)
  75                 {
  76                         return 1;       // LAMESPEC
  77                 }
  78
  79                 int IBuiltInEvidence.InitFromBuffer (char[] buffer, int position)
  80                 {
  81                         return position;
  82                 }
  83
  84                 int IBuiltInEvidence.OutputToBuffer (char[] buffer, int position, bool verbose)
  85                 {
  86                         buffer [position] = '\t';
  87                         return position + 1;
  88                 }
  89         }
  90 }