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Added support for Atari ST executable.

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This commit is contained in:
Natalia Portillo
2017-10-16 18:01:15 +01:00
parent bfaa7fb37a
commit 91cc5f8998
8 changed files with 381 additions and 1 deletions
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1
README.md
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@@ -8,5 +8,6 @@ It is also accompanied by a command line application as an example of usage.
Supported executable formats
============================
* Atari ST executable
* MZ (aka DOS relocatable executable)
* NE (Microsoft New Executable)

7
exeinfo/Program.cs
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@@ -51,6 +51,7 @@ namespace exeinfo
MZ mzExe = new MZ(exeFs);
NE neExe = new NE(exeFs);
AtariST stExe = new AtariST(exeFs);
if (mzExe.IsMZ)
{
@@ -110,6 +111,12 @@ namespace exeinfo
}
}
if (stExe.IsAtariST)
{
recognized = true;
Console.Write(stExe.GetInfo());
}
if (!recognized)
Console.WriteLine("Executable format not recognized");
}

106
libexeinfo/AtariST/AtariST.cs Normal file
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@@ -0,0 +1,106 @@
//
// AtariST.cs
//
// Author:
// Natalia Portillo <claunia@claunia.com>
//
// Copyright (c) 2017 Copyright © Claunia.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.IO;
using System.Runtime.InteropServices;
namespace libexeinfo
{
/// <summary>
/// Represents an Atari ST executable
/// </summary>
public partial class AtariST
{
/// <summary>
/// The <see cref="FileStream"/> that contains the executable represented by this instance
/// </summary>
public readonly FileStream BaseStream;
/// <summary>
/// Header for this executable
/// </summary>
public readonly AtariHeader Header;
/// <summary>
/// If true this instance correctly represents an Atari ST executable
/// </summary>
public readonly bool IsAtariST;
/// <summary>
/// Initializes a new instance of the <see cref="T:libexeinfo.AtariST"/> class.
/// </summary>
/// <param name="path">Executable path.</param>
public AtariST(string path)
{
byte[] buffer = new byte[Marshal.SizeOf(typeof(AtariHeader))];
BaseStream = File.Open(path, FileMode.Open, FileAccess.Read);
BaseStream.Position = 0;
BaseStream.Read(buffer, 0, buffer.Length);
Header = BigEndianMarshal.ByteArrayToStructureBigEndian<AtariHeader>(buffer);
IsAtariST = Header.signature == Signature;
}
/// <summary>
/// Initializes a new instance of the <see cref="T:libexeinfo.AtariST"/> class.
/// </summary>
/// <param name="stream">Stream containing the executable.</param>
public AtariST(FileStream stream)
{
byte[] buffer = new byte[Marshal.SizeOf(typeof(AtariHeader))];
BaseStream = stream;
BaseStream.Position = 0;
BaseStream.Read(buffer, 0, buffer.Length);
Header = BigEndianMarshal.ByteArrayToStructureBigEndian<AtariHeader>(buffer);
IsAtariST = Header.signature == Signature;
}
/// <summary>
/// Identifies if the specified executable is a Atari ST executable
/// </summary>
/// <returns><c>true</c> if the specified executable is a Atari ST executable, <c>false</c> otherwise.</returns>
/// <param name="path">Executable path.</param>
public static bool Identify(string path)
{
FileStream exeFs = File.Open(path, FileMode.Open, FileAccess.Read);
return Identify(exeFs);
}
/// <summary>
/// Identifies if the specified executable is a Atari ST executable
/// </summary>
/// <returns><c>true</c> if the specified executable is a Atari ST executable, <c>false</c> otherwise.</returns>
/// <param name="stream">Stream containing the executable.</param>
public static bool Identify(FileStream stream)
{
byte[] buffer = new byte[Marshal.SizeOf(typeof(AtariHeader))];
stream.Position = 0;
stream.Read(buffer, 0, buffer.Length);
AtariHeader hdr = BigEndianMarshal.ByteArrayToStructureBigEndian<AtariHeader>(buffer);
return hdr.signature == Signature;
}
}
}

33
libexeinfo/AtariST/Consts.cs Normal file
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@@ -0,0 +1,33 @@
//
// Consts.cs
//
// Author:
// Natalia Portillo <claunia@claunia.com>
//
// Copyright (c) 2017 Copyright © Claunia.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;
namespace libexeinfo
{
public partial class AtariST
{
public const ushort Signature = 0x601A;
}
}

58
libexeinfo/AtariST/Info.cs Normal file
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@@ -0,0 +1,58 @@
//
// Info.cs
//
// Author:
// Natalia Portillo <claunia@claunia.com>
//
// Copyright (c) 2017 Copyright © Claunia.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.Text;
namespace libexeinfo
{
public partial class AtariST
{
/// <summary>
/// Gets a string with human readable information for a given Atari ST header
/// </summary>
/// <returns>Human readable information for given Atari ST header.</returns>
/// <param name="header">Atari ST executable header.</param>
public static string GetInfo(AtariHeader header)
{
StringBuilder sb = new StringBuilder();
sb.AppendLine("Atari ST executable:");
sb.AppendFormat("\t{0} bytes in text segment", header.text_len).AppendLine();
sb.AppendFormat("\t{0} bytes in data segment", header.data_len).AppendLine();
sb.AppendFormat("\t{0} bytes in BSS segment", header.bss_len).AppendLine();
sb.AppendFormat("\t{0} bytes in symbol table", header.symb_len).AppendLine();
return sb.ToString();
}
/// <summary>
/// Gets a string with human readable information for the Atari ST executable represented by this instance
/// </summary>
/// <returns>Human readable information for this instance.</returns>
public string GetInfo()
{
return GetInfo(Header);
}
}
}

46
libexeinfo/AtariST/Structs.cs Normal file
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@@ -0,0 +1,46 @@
//
// Structs.cs
//
// Author:
// Natalia Portillo <claunia@claunia.com>
//
// Copyright (c) 2017 Copyright © Claunia.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.Runtime.InteropServices;
namespace libexeinfo
{
public partial class AtariST
{
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct AtariHeader
{
public ushort signature;
public uint text_len;
public uint data_len;
public uint bss_len;
public uint symb_len;
public uint reserved;
public uint flags;
public ushort absflags;
}
}
}

123
libexeinfo/BigEndianMarshal.cs Normal file
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@@ -0,0 +1,123 @@
//
// BigEndianMarshal.cs
//
// Author:
// Natalia Portillo <claunia@claunia.com>
//
// Copyright (c) 2017 Copyright © Claunia.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.Linq;
using System.Reflection;
using System.Runtime.InteropServices;
namespace libexeinfo
{
public static class BigEndianMarshal
{
/// <summary>
/// Marshals a big endian structure from a byte array.
/// Nested structures are still marshalled as little endian.
/// </summary>
/// <returns>The structure.</returns>
/// <param name="bytes">Byte array.</param>
/// <typeparam name="T">Structure type.</typeparam>
public static T ByteArrayToStructureBigEndian<T>(byte[] bytes) where T : struct
{
GCHandle ptr = GCHandle.Alloc(bytes, GCHandleType.Pinned);
T str = (T)Marshal.PtrToStructure(ptr.AddrOfPinnedObject(), typeof(T));
ptr.Free();
return SwapStructureMembersEndian(str);
}
/// <summary>
/// Swaps endian of structure members that correspond to numerical types.
/// Does not traverse nested structures.
/// </summary>
/// <returns>The structure with its members endian swapped.</returns>
/// <param name="str">The structure.</param>
/// <typeparam name="T">Structure type.</typeparam>
public static T SwapStructureMembersEndian<T>(T str) where T : struct
{
Type t = str.GetType();
FieldInfo[] fieldInfo = t.GetFields();
foreach (FieldInfo fi in fieldInfo)
{
if (fi.FieldType == typeof(short))
{
short int16 = (short)fi.GetValue(str);
byte[] int16_b = BitConverter.GetBytes(int16);
byte[] int16_r = int16_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToInt16(int16_r, 0));
}
else if (fi.FieldType == typeof(int))
{
int int32 = (int)fi.GetValue(str);
byte[] int32_b = BitConverter.GetBytes(int32);
byte[] int32_r = int32_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToInt32(int32_r, 0));
}
else if (fi.FieldType == typeof(long))
{
long int64 = (long)fi.GetValue(str);
byte[] int64_b = BitConverter.GetBytes(int64);
byte[] int64_r = int64_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToInt64(int64_r, 0));
}
else if (fi.FieldType == typeof(ushort))
{
ushort uint16 = (ushort)fi.GetValue(str);
byte[] uint16_b = BitConverter.GetBytes(uint16);
byte[] uint16_r = uint16_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToInt16(uint16_r, 0));
}
else if (fi.FieldType == typeof(uint))
{
uint uint32 = (uint)fi.GetValue(str);
byte[] uint32_b = BitConverter.GetBytes(uint32);
byte[] uint32_r = uint32_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToInt32(uint32_r, 0));
}
else if (fi.FieldType == typeof(ulong))
{
ulong uint64 = (ulong)fi.GetValue(str);
byte[] uint64_b = BitConverter.GetBytes(uint64);
byte[] uint64_r = uint64_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToInt64(uint64_r, 0));
}
else if (fi.FieldType == typeof(float))
{
float flt = (float)fi.GetValue(str);
byte[] flt_b = BitConverter.GetBytes(flt);
byte[] flt_r = flt_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToSingle(flt_r, 0));
}
else if (fi.FieldType == typeof(double))
{
double dbl = (double)fi.GetValue(str);
byte[] dbl_b = BitConverter.GetBytes(dbl);
byte[] dbl_r = dbl_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToDouble(dbl_r, 0));
}
}
return str;
}
}
}

6
libexeinfo/libexeinfo.csproj
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@@ -54,6 +54,11 @@
<Compile Include="NE\Version.cs" />
<Compile Include="MZ\MZ.cs" />
<Compile Include="NE\NE.cs" />
<Compile Include="BigEndianMarshal.cs" />
<Compile Include="AtariST\Structs.cs" />
<Compile Include="AtariST\Consts.cs" />
<Compile Include="AtariST\AtariST.cs" />
<Compile Include="AtariST\Info.cs" />
</ItemGroup>
<ItemGroup>
<None Include="packages.config" />
@@ -67,6 +72,7 @@
<ItemGroup>
<Folder Include="MZ\" />
<Folder Include="NE\" />
<Folder Include="AtariST\" />
</ItemGroup>
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
<Import Project="..\packages\NuGet.Build.Packaging.0.1.276\build\NuGet.Build.Packaging.targets" Condition="Exists('..\packages\NuGet.Build.Packaging.0.1.276\build\NuGet.Build.Packaging.targets')" />