Added support for DOS MZ executables.

exeinfo/Program.cs

@@ -0,0 +1,42 @@
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+
+namespace exeinfo
+{
+    class MainClass
+    {
+        static MZ.Header mzHdr;
+
+        public static void Main(string[] args)
+        {
+            if(args.Length != 1)
+            {
+                Console.WriteLine("exeinfo version 0.1 © 2017 Natalia Portillo");
+                Console.WriteLine("Usage: exeinfo file.exe");
+                return;
+            }
+
+            FileStream exeFs = File.Open(args[0], FileMode.Open, FileAccess.Read);
+
+            bool recognized = false;
+
+            byte[] buffer = new byte[Marshal.SizeOf(typeof(MZ.Header))];
+
+            exeFs.Read(buffer, 0, buffer.Length);
+			IntPtr hdrPtr = Marshal.AllocHGlobal(buffer.Length);
+			Marshal.Copy(buffer, 0, hdrPtr, buffer.Length);
+			mzHdr = (MZ.Header)Marshal.PtrToStructure(hdrPtr, typeof(MZ.Header));
+			Marshal.FreeHGlobal(hdrPtr);
+
+            if(mzHdr.signature == MZ.Signature)
+            {
+                recognized = true;
+                MZ.PrintInfo(mzHdr);
+            }
+
+            if (!recognized)
+                Console.WriteLine("Executalbe format not recognized");
+		}
+    }
+}