mcs/class/Mono.PEToolkit/Section.cs

   1 /*\r
   2  * Copyright (c) 2002 Sergey Chaban <serge@wildwestsoftware.com>\r
   3  */\r
   4 \r
   5 using System;\r
   6 using System.IO;\r
   7 using System.Text;\r
   8 using System.Runtime.InteropServices;\r
   9 \r
  10 namespace Mono.PEToolkit {\r
  11 \r
  12         public class Section {\r
  13 \r
  14                 // IMAGE_SECTION_HEADER\r
  15                 [StructLayoutAttribute(LayoutKind.Sequential)]\r
  16                 public struct Header {\r
  17                         internal uint  phAddr_virtSize;\r
  18                         internal RVA   virtAddr;\r
  19                         internal uint  rawSize;\r
  20                         internal RVA   rawDataPtr;\r
  21                         internal RVA   relocPtr;\r
  22                         internal RVA   lineNumPtr;\r
  23                         internal short relocNum;\r
  24                         internal short linenumNum;\r
  25                         internal SectionCharacteristics flags;\r
  26                 }\r
  27 \r
  28                 private string name;\r
  29                 internal Header hdr;\r
  30 \r
  31                 public readonly static Section Invalid;\r
  32 \r
  33                 static Section()\r
  34                 {\r
  35                         Invalid = new Section();\r
  36                 }\r
  37 \r
  38                 public Section()\r
  39                 {\r
  40                 }\r
  41 \r
  42 \r
  43                 public string Name {\r
  44                         get {\r
  45                                 return name;\r
  46                         }\r
  47                         set {\r
  48                                 name = value;\r
  49                         }\r
  50                 }\r
  51 \r
  52 \r
  53                 public uint PhysicalAddress {\r
  54                         get {\r
  55                                 return hdr.phAddr_virtSize;\r
  56                         }\r
  57                         set {\r
  58                                 hdr.phAddr_virtSize = value;\r
  59                         }\r
  60                 }\r
  61 \r
  62                 public uint VirtualSize {\r
  63                         get {\r
  64                                 return hdr.phAddr_virtSize;\r
  65                         }\r
  66                         set {\r
  67                                 hdr.phAddr_virtSize = value;\r
  68                         }\r
  69                 }\r
  70 \r
  71                 public RVA VirtualAddress {\r
  72                         get {\r
  73                                 return hdr.virtAddr;\r
  74                         }\r
  75                         set {\r
  76                                 hdr.virtAddr = value;\r
  77                         }\r
  78                 }\r
  79 \r
  80                 public uint SizeOfRawData {\r
  81                         get {\r
  82                                 return hdr.rawSize;\r
  83                         }\r
  84                         set {\r
  85                                 hdr.rawSize = value;\r
  86                         }\r
  87                 }\r
  88 \r
  89                 public RVA PointerToRawData {\r
  90                         get {\r
  91                                 return hdr.rawDataPtr;\r
  92                         }\r
  93                         set {\r
  94                                 hdr.rawDataPtr = value;\r
  95                         }\r
  96                 }\r
  97                 \r
  98                 public RVA PointerToRelocations {\r
  99                         get {\r
 100                                 return hdr.relocPtr;\r
 101                         }\r
 102                         set {\r
 103                                 hdr.relocPtr = value;\r
 104                         }\r
 105                 }\r
 106                 \r
 107                 public RVA PointerToLinenumbers {\r
 108                         get {\r
 109                                 return hdr.lineNumPtr;\r
 110                         }\r
 111                         set {\r
 112                                 hdr.lineNumPtr = value;\r
 113                         }\r
 114                 }\r
 115                 \r
 116                 public short NumberOfRelocations {\r
 117                         get {\r
 118                                 return hdr.relocNum;\r
 119                         }\r
 120                         set {\r
 121                                 hdr.relocNum = value;\r
 122                         }\r
 123                 }\r
 124                 \r
 125                 public short NumberOfLinenumbers {\r
 126                         get {\r
 127                                 return hdr.linenumNum;\r
 128                         }\r
 129                         set {\r
 130                                 hdr.linenumNum = value;\r
 131                         }\r
 132                 }\r
 133                 \r
 134                 public SectionCharacteristics Characteristics {\r
 135                         get {\r
 136                                 return hdr.flags;\r
 137                         }\r
 138                         set {\r
 139                                 hdr.flags = value;\r
 140                         }\r
 141                 }\r
 142 \r
 143 \r
 144 \r
 145                 /// <summary>\r
 146                 /// </summary>\r
 147                 unsafe public void Read(BinaryReader reader)\r
 148                 {\r
 149                         sbyte* pName = stackalloc sbyte [8];\r
 150                         sbyte* p = pName;\r
 151 \r
 152                         for (int i = 8; --i >=0;) {\r
 153                                 sbyte c = reader.ReadSByte();\r
 154                                 if (c == 0) break;\r
 155                                 *p++ = c;\r
 156                         }\r
 157 \r
 158                         int len = (int) (p - pName);\r
 159                         if (len != 0) {\r
 160                                 name = new string(pName, 0, len, Encoding.ASCII);\r
 161                         } else {\r
 162                                 name = String.Empty;\r
 163                         }\r
 164 \r
 165                         reader.BaseStream.Position += 8 - len - 1;\r
 166 \r
 167                         fixed (void* pHdr = &this.hdr) {\r
 168                                 PEUtils.ReadStruct(reader, pHdr, sizeof (Header), typeof (Header));\r
 169                         }\r
 170                 }\r
 171 \r
 172         }\r
 173 \r
 174 }\r
 175 \r