class/corlib/System.Security.AccessControl/GenericAcl.cs

   1 //
   2 // System.Security.AccessControl.GenericAcl implementation
   3 //
   4 // Author:
   5 //      Dick Porter  <dick@ximian.com>
   6 //      Atsushi Enomoto  <atsushi@ximian.com>
   7 //
   8 // Copyright (C) 2006-2007 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System.Collections;
  31
  32 namespace System.Security.AccessControl {
  33         public abstract class GenericAcl : ICollection, IEnumerable
  34         {
  35                 public static readonly byte AclRevision;
  36                 public static readonly byte AclRevisionDS;
  37                 public static readonly int MaxBinaryLength;
  38
  39                 static GenericAcl ()
  40                 {
  41                         // FIXME: they are likely platform dependent (on windows)
  42                         AclRevision = 2;
  43                         AclRevisionDS = 4;
  44                         MaxBinaryLength = 0x10000;
  45                 }
  46
  47                 protected GenericAcl ()
  48                 {
  49                 }
  50
  51                 public abstract int BinaryLength { get; }
  52
  53                 public abstract int Count { get; }
  54
  55                 public bool IsSynchronized {
  56                         get { return false; }
  57                 }
  58
  59                 public abstract GenericAce this [int index] {
  60                         get;
  61                         set;
  62                 }
  63
  64                 public abstract byte Revision { get; }
  65
  66                 public object SyncRoot {
  67                         get { return this; }
  68                 }
  69
  70                 public void CopyTo (GenericAce [] array, int index)
  71                 {
  72                         if (array == null)
  73                                 throw new ArgumentNullException ("array");
  74                         if (index < 0 || array.Length - index < Count)
  75                                 throw new ArgumentOutOfRangeException ("index", "Index must be non-negative integer and must not exceed array length - count");
  76                         for (int i = 0; i < Count; i++)
  77                                 array [i + index] = this [i];
  78                 }
  79
  80                 void ICollection.CopyTo (Array array, int index)
  81                 {
  82                         CopyTo ((GenericAce []) array, index);
  83                 }
  84
  85                 public abstract void GetBinaryForm (byte[] binaryForm, int offset);
  86
  87                 public AceEnumerator GetEnumerator ()
  88                 {
  89                         return new AceEnumerator (this);
  90                 }
  91
  92                 IEnumerator IEnumerable.GetEnumerator ()
  93                 {
  94                         return GetEnumerator ();
  95                 }
  96         }
  97 }
  98