From d6db90d6780d5cdb37ef97ec36d0cb452ac70e9e Mon Sep 17 00:00:00 2001
From: Zoltan Varga <vargaz@gmail.com>
Date: Wed, 18 Nov 2015 04:19:56 -0500
Subject: Add an '--assembly' option to dump the Assembly metadata table, the
 output is identical to monodis --assembly.

---
 Program.cs     |  20 ++++++++++-
 TableDumper.cs | 102 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 121 insertions(+), 1 deletion(-)
 create mode 100644 TableDumper.cs

diff --git a/Program.cs b/Program.cs
index da197b2..1a8c39a 100644
--- a/Program.cs
+++ b/Program.cs
@@ -36,6 +36,7 @@ namespace Ildasm
         {
             string outputFile = null;
             string inputFile = null;
+            MetadataTableIndex? tableToDump = null;
             var compatLevel = CompatLevel.None;
             var flags = Flags.None;
 
@@ -44,7 +45,8 @@ namespace Ildasm
 
 				var p = new OptionSet () {
 						{ "help", v => printUsage = true },
-						{ "out", v => outputFile = v }
+						{ "out", v => outputFile = v },
+						{ "assembly", v =>tableToDump = MetadataTableIndex.Assembly },
 					};
 				args = p.Parse (args).ToArray ();
 				if (printUsage) {
@@ -117,6 +119,22 @@ namespace Ildasm
                 PrintUsage();
                 return 1;
             }
+			if (tableToDump.HasValue)
+			{
+				var tableDumper = new TableDumper(inputFile);
+				if (outputFile != null)
+				{
+					using (StreamWriter sw = new StreamWriter(outputFile, false))
+					{
+						tableDumper.DumpTable(sw, tableToDump.Value);
+					}
+				}
+				else
+				{
+					tableDumper.DumpTable(Console.Out, tableToDump.Value);
+				}
+				return 0;
+			}
             var disassembler = new Disassembler(inputFile, outputFile, compatLevel, flags);
             if (outputFile != null)
             {
diff --git a/TableDumper.cs b/TableDumper.cs
new file mode 100644
index 0000000..d919ca0
--- /dev/null
+++ b/TableDumper.cs
@@ -0,0 +1,102 @@
+//
+// Copyright (C) 2011 Xamarin Inc (http://www.xamarin.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.IO;
+using IKVM.Reflection;
+
+namespace Ildasm
+{
+	enum MetadataTableIndex {
+		Assembly = 0x20,
+	}
+
+	class TableDumper
+	{
+		Universe universe;
+		Assembly assembly;
+		Module module;
+
+		public TableDumper (string inputFile) {
+            universe = new Universe (UniverseOptions.None);
+
+            var raw = universe.OpenRawModule (System.IO.File.OpenRead (inputFile), System.IO.Path.GetTempPath () + "/Dummy");
+            if (raw.IsManifestModule)
+            {
+                assembly = universe.LoadAssembly (raw);
+                module = assembly.ManifestModule;
+            }
+            else
+            {
+                var ab = universe.DefineDynamicAssembly (new AssemblyName ("<ModuleContainer>"), IKVM.Reflection.Emit.AssemblyBuilderAccess.ReflectionOnly);
+                assembly = ab;
+                module = ab.__AddModule (raw);
+            }			
+		}
+
+		public void DumpTable (TextWriter w, MetadataTableIndex tableIndex) {
+			switch (tableIndex) {
+			case MetadataTableIndex.Assembly:
+				DumpAssemblyTable (w);
+				break;
+			default:
+				throw new NotImplementedException ();
+			}
+		}
+
+		void HexDump (TextWriter w, byte[] bytes, int len) {
+			for (int i = 0; i < len; ++i) {
+				if ((i % 16) == 0)
+					w.Write (String.Format ("\n0x{0:x08}: ", i));
+				w.Write (String.Format ("{0:x02} ", bytes [i]));
+			}
+		}
+
+		void DumpAssemblyTable (TextWriter w) {
+			var t = module.AssemblyTable;
+			w.WriteLine ("Assembly Table");
+			foreach (var r in t.records) {
+				w.WriteLine (String.Format ("Name:          {0}", module.GetString (r.Name)));
+				w.WriteLine (String.Format ("Hash Algoritm: 0x{0:x08}", r.HashAlgId));
+				w.WriteLine (String.Format ("Version:       {0}.{1}.{2}.{3}", r.MajorVersion, r.MinorVersion, r.BuildNumber, r.RevisionNumber));
+				w.WriteLine (String.Format ("Flags:         0x{0:x08}", r.Flags));
+				w.WriteLine (String.Format ("PublicKey:     BlobPtr (0x{0:x08})", r.PublicKey));
+
+				var blob = module.GetBlob (r.PublicKey);
+				if (blob.Length == 0) {
+					w.WriteLine ("\tZero sized public key");
+				} else {
+					w.Write ("\tDump:");
+					byte[] bytes = blob.ReadBytes (blob.Length);
+					HexDump (w, bytes, bytes.Length);
+					w.WriteLine ();
+				}
+				w.WriteLine (String.Format ("Culture:       {0}", module.GetString (r.Culture)));
+				w.WriteLine ();
+			}
+		}
+	}
+}
-- 
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