diff options
| author | Miguel de Icaza <miguel@gnome.org> | 2002-09-17 05:18:57 +0400 |
|---|---|---|
| committer | Miguel de Icaza <miguel@gnome.org> | 2002-09-17 05:18:57 +0400 |
| commit | 9b1aad2b6fcc31dbec9c65a2424eceedb7e5364c (patch) | |
| tree | 7aaec6525e9cd7d1c28ae81b84534cd199f864fa /mcs/class/Mono.PEToolkit/DOSHeader.cs | |
| parent | 501655c80dcc5c0593f07fe2657c778dc336018d (diff) | |
Add Sergey Chaban's Mono.PEToolkit
svn path=/trunk/mcs/; revision=7542
Diffstat (limited to 'mcs/class/Mono.PEToolkit/DOSHeader.cs')
| -rw-r--r-- | mcs/class/Mono.PEToolkit/DOSHeader.cs | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/mcs/class/Mono.PEToolkit/DOSHeader.cs b/mcs/class/Mono.PEToolkit/DOSHeader.cs new file mode 100644 index 00000000000..05120664d39 --- /dev/null +++ b/mcs/class/Mono.PEToolkit/DOSHeader.cs @@ -0,0 +1,114 @@ +/*
+ * Copyright (c) 2002 Sergey Chaban <serge@wildwestsoftware.com>
+ */
+
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+
+namespace Mono.PEToolkit {
+
+ [StructLayout(LayoutKind.Explicit)]
+ public struct DOSHeader {
+ // Magic number (ExeSignature.DOS).
+ [FieldOffset(0*2)] public ExeSignature magic;
+
+ // Bytes on last page of file.
+ [FieldOffset(1*2)] public short cblp;
+
+ // Pages in file.
+ [FieldOffset(2*2)] public short cp;
+
+ // Relocations.
+ [FieldOffset(3*2)] public short crlc;
+
+ // Size of header in paragraphs.
+ [FieldOffset(4*2)] public short cparhdr;
+
+ // Minimum extra paragraphs needed.
+ [FieldOffset(5*2)] public short minalloc;
+
+ // Maximum extra paragraphs needed.
+ [FieldOffset(6*2)] public short maxalloc;
+
+ // Initial (relative) SS value.
+ [FieldOffset(7*2)] public short ss;
+
+ // Initial SP value.
+ [FieldOffset(8*2)] public short sp;
+
+ // Checksum.
+ [FieldOffset(9*2)] public short csum;
+
+ // Initial IP value.
+ [FieldOffset(10*2)] public short ip;
+
+ // Initial (relative) CS value.
+ [FieldOffset(11*2)] public short cs;
+
+ // File address of relocation table.
+ [FieldOffset(12*2)] public short lfarlc;
+
+ // Overlay number.
+ [FieldOffset(13*2)] public short ovno;
+
+ // Reserved words.
+ // short[4] res;
+
+ // OEM identifier (for e_oeminfo).
+ [FieldOffset(18*2)] public short oemid;
+
+ // OEM information; e_oemid specific.
+ [FieldOffset(19*2)] public short oeminfo;
+
+ // Reserved words
+ // short[10] res2;
+
+ // File address of new exe header.
+ [FieldOffset(30*2)] public uint lfanew;
+
+
+
+ /// <summary>
+ /// </summary>
+ unsafe public void Read(BinaryReader reader)
+ {
+ fixed (void* pThis = &this) {
+ PEUtils.ReadStruct(reader, pThis, sizeof (DOSHeader), typeof (DOSHeader));
+ }
+ }
+
+ /// <summary>
+ /// </summary>
+ /// <param name="writer"></param>
+ public void Dump(TextWriter writer)
+ {
+ writer.WriteLine(
+ "Number of pages : {0}" + Environment.NewLine +
+ "Bytes on last pages : {1}" + Environment.NewLine +
+ "New header offset : {2}" + Environment.NewLine +
+ "Initial CS:IP : {3}:{4}" + Environment.NewLine +
+ "Initial SS:SP : {5}:{6}" + Environment.NewLine +
+ "Overlay number : {7}" + Environment.NewLine,
+ cp, cblp,
+ lfanew + " (0x" + lfanew.ToString("X") + ")",
+ cs.ToString("X"), ip.ToString("X"),
+ ss.ToString("X"), sp.ToString("X"),
+ ovno
+ );
+ }
+
+ /// <summary>
+ /// </summary>
+ /// <returns></returns>
+ public override string ToString()
+ {
+ StringWriter sw = new StringWriter();
+ Dump(sw);
+ return sw.ToString();
+ }
+
+ }
+
+}
+
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