mcs/class/Mono.PEToolkit/DataDir.cs

   1
   2 //
   3 // Permission is hereby granted, free of charge, to any person obtaining
   4 // a copy of this software and associated documentation files (the
   5 // "Software"), to deal in the Software without restriction, including
   6 // without limitation the rights to use, copy, modify, merge, publish,
   7 // distribute, sublicense, and/or sell copies of the Software, and to
   8 // permit persons to whom the Software is furnished to do so, subject to
   9 // the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be
  12 // included in all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  15 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  17 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  18 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  19 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  20 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  21 //
  22 /*
  23  * Copyright (c) 2002 Sergey Chaban <serge@wildwestsoftware.com>
  24  */
  25
  26 using System;
  27 using System.IO;
  28 using System.Runtime.InteropServices;
  29
  30 namespace Mono.PEToolkit {
  31
  32         /// <summary>
  33         /// IMAGE_DATA_DIRECTORY.
  34         /// </summary>
  35         public class DataDir {
  36
  37                 public static readonly DataDir Null;
  38
  39                 public RVA virtAddr;
  40                 public uint size;
  41
  42                 static DataDir ()
  43                 {
  44                         Null = new DataDir ();
  45                         Null.virtAddr = 0;
  46                         Null.size = 0;
  47                 }
  48
  49                 public DataDir () {
  50
  51                 }
  52
  53                 public DataDir (BinaryReader reader)
  54                 {
  55                         Read (reader);
  56                 }
  57
  58                 public void Read (BinaryReader reader)
  59                 {
  60                         virtAddr = new RVA (reader.ReadUInt32 ());
  61                         size = reader.ReadUInt32 ();
  62                 }
  63
  64                 public void Write (BinaryWriter writer)
  65                 {
  66                         virtAddr.Write (writer);
  67                         writer.Write (size);
  68                 }
  69
  70                 public RVA VirtualAddress {
  71                         get {
  72                                 return virtAddr;
  73                         }
  74                         set {
  75                                 virtAddr = value;
  76                         }
  77                 }
  78
  79                 public uint Size {
  80                         get {
  81                                 return size;
  82                         }
  83                         set {
  84                                 size = value;
  85                         }
  86                 }
  87
  88                 public bool IsNull {
  89                         get {
  90                                 return (this == Null);
  91                         }
  92                 }
  93
  94                 public override int GetHashCode()
  95                 {
  96                         return (virtAddr.GetHashCode() ^ (int)(size << 1));
  97                 }
  98
  99                 public override bool Equals(object obj)
 100                 {
 101                         bool res = (obj is DataDir);
 102                         if (res) {
 103                                 DataDir that = (DataDir) obj;
 104                                 res = (this.virtAddr == that.virtAddr) &&
 105                                       (this.size == that.size);
 106                         }
 107                         return res;
 108                 }
 109
 110                 public static bool operator == (DataDir d1, DataDir d2)
 111                 {
 112                         return d1.Equals(d2);
 113                 }
 114
 115                 public static bool operator != (DataDir d1, DataDir d2)
 116                 {
 117                         return !d1.Equals(d2);
 118                 }
 119
 120                 /// <summary>
 121                 /// </summary>
 122                 /// <returns></returns>
 123                 public override string ToString()
 124                 {
 125                         if (this.IsNull) return "NULL";
 126                         return String.Format("RVA = {0}, size = 0x{1}", virtAddr, size.ToString("X"));
 127                 }
 128
 129         }
 130
 131 }
 132