EndianBinaryIO 2.0.1

.NET 6.0
dotnet add package EndianBinaryIO --version 2.0.1
NuGet\Install-Package EndianBinaryIO -Version 2.0.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="EndianBinaryIO" Version="2.0.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add EndianBinaryIO --version 2.0.1
#r "nuget: EndianBinaryIO, 2.0.1"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install EndianBinaryIO as a Cake Addin
#addin nuget:?package=EndianBinaryIO&version=2.0.1

// Install EndianBinaryIO as a Cake Tool
#tool nuget:?package=EndianBinaryIO&version=2.0.1

📖 EndianBinaryIO

NuGet NuGet downloads

This .NET library provides a simple API to read/write bytes from/to streams and spans using user-specified endianness. By default, supported types include primitives, enums, arrays, strings, and some common .NET struct types. Objects can also be read/written from/to streams via reflection and attributes. The developer can use the API even if their target behavior or data is not directly supported by using the IBinarySerializable interface, inheritting from the reader/writer, or using the manual Span<T>/ReadOnlySpan<T> methods without streams. Performance is the focus when not using reflection; no allocations unless absolutely necessary!

The IBinarySerializable interface allows an object to be read and written in a customizable fashion during reflection. Also included are attributes that can make reading and writing objects less of a headache. For example, classes and structs in C# cannot have ignored members when marshalling, but EndianBinaryIO has a BinaryIgnoreAttribute that will ignore properties when reading and writing.

The EndianBinaryPrimitives static class which resembles System.Buffers.Binary.BinaryPrimitives is an API that converts to/from data types using Span<T>/ReadOnlySpan<T> with specific endianness, rather than streams.


Changelog For v2.0.1

Check the comment on the release page!

Changelog For v2.0.0

Check the comment on the release page!


🚀 Usage:

Add the EndianBinaryIO NuGet package to your project or download the .dll from the releases tab.


Examples:

Assume we have the following definitions:

C#:

enum ByteSizedEnum : byte
{
	Val1 = 0x20,
	Val2 = 0x80,
}
enum ShortSizedEnum : short
{
	Val1 = 0x40,
	Val2 = 0x800,
}

class MyBasicObj
{
	// Properties
	public ShortSizedEnum Type { get; set; }
	public short Version { get; set; }
	public DateTime Date { get; set; }

	// Property that is ignored when reading and writing
	[BinaryIgnore]
	public ByteSizedEnum DoNotReadOrWrite { get; set; }

	// Arrays work as well
	[BinaryArrayFixedLength(16)]
	public uint[] ArrayWith16Elements { get; set; }

	// Boolean that occupies 4 bytes instead of one
	[BinaryBooleanSize(BooleanSize.U32)]
	public bool Bool32 { get; set; }

	// String encoded in ASCII
	// Reads chars until the stream encounters a '\0'
	// Writing will append a '\0' at the end of the string
	[BinaryASCII]
	[BinaryStringNullTerminated]
	public string NullTerminatedASCIIString { get; set; }

	// String encoded in UTF16-LE that will only read/write 10 chars
	// The BinaryStringTrimNullTerminatorsAttribute will indicate that every char from the first \0 will be removed from the string. This attribute also works with char arrays
	[BinaryStringFixedLength(10)]
	[BinaryStringTrimNullTerminators]
	public string UTF16String { get; set; }
}

And assume these are our input bytes (in little endian):

Input Bytes (Little Endian):

0x00, 0x08, // ShortSizedEnum.Val2
0xFF, 0x01, // (short)511
0x00, 0x00, 0x4A, 0x7A, 0x9E, 0x01, 0xC0, 0x08, // (DateTime)Dec. 30, 1998

0x00, 0x00, 0x00, 0x00, // (uint)0
0x01, 0x00, 0x00, 0x00, // (uint)1
0x02, 0x00, 0x00, 0x00, // (uint)2
0x03, 0x00, 0x00, 0x00, // (uint)3
0x04, 0x00, 0x00, 0x00, // (uint)4
0x05, 0x00, 0x00, 0x00, // (uint)5
0x06, 0x00, 0x00, 0x00, // (uint)6
0x07, 0x00, 0x00, 0x00, // (uint)7
0x08, 0x00, 0x00, 0x00, // (uint)8
0x09, 0x00, 0x00, 0x00, // (uint)9
0x0A, 0x00, 0x00, 0x00, // (uint)10
0x0B, 0x00, 0x00, 0x00, // (uint)11
0x0C, 0x00, 0x00, 0x00, // (uint)12
0x0D, 0x00, 0x00, 0x00, // (uint)13
0x0E, 0x00, 0x00, 0x00, // (uint)14
0x0F, 0x00, 0x00, 0x00, // (uint)15

0x00, 0x00, 0x00, 0x00, // (bool32)false

0x45, 0x6E, 0x64, 0x69, 0x61, 0x6E, 0x42, 0x69, 0x6E, 0x61, 0x72, 0x79, 0x49, 0x4F, 0x00, // (ASCII)"EndianBinaryIO\0"

0x4B, 0x00, 0x65, 0x00, 0x72, 0x00, 0x6D, 0x00, 0x61, 0x00, 0x6C, 0x00, 0x69, 0x00, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, // (UTF16-LE)"Kermalis\0\0"

We can read/write the object manually or automatically (with reflection):

Reading Manually:

var reader = new EndianBinaryReader(stream, endianness: Endianness.LittleEndian, booleanSize: BooleanSize.U32);
var obj = new MyBasicObj();

obj.Type = reader.ReadEnum<ShortSizedEnum>(); // Reads the enum type based on the amount of bytes of the enum's underlying type (short/2 in this case)
obj.Version = reader.ReadInt16(); // Reads a 'short' (2 bytes)
obj.Date = reader.ReadDateTime(); // Reads a 'DateTime' (8 bytes)

obj.ArrayWith16Elements = new uint[16];
reader.ReadUInt32s(obj.ArrayWith16Elements); // Reads 16 'uint's (4 bytes each)

obj.Bool32 = reader.ReadBoolean(); // Reads a 'bool' (4 bytes in this case, since the reader's current bool state is BooleanSize.U32)

reader.ASCII = true; // Set the reader's ASCII state to true
obj.NullTerminatedASCIIString = reader.ReadString_NullTerminated(); // Reads ASCII chars until a '\0' is read, then returns a 'string'

reader.ASCII = false; // Set the reader's ASCII state to false (UTF16-LE)
obj.UTF16String = reader.ReadString_Count_TrimNullTerminators(10); // Reads 10 UTF16-LE chars as a 'string' with the '\0's removed

Reading Automatically (With Reflection):

var reader = new EndianBinaryReader(stream, endianness: Endianness.LittleEndian);
var obj = reader.ReadObject<MyBasicObj>(); // Create a 'MyBasicObj' and read all properties in order, ignoring any with a 'BinaryIgnoreAttribute'
// Other objects that are properties in this object will also be read in the same way recursively

Writing Manually:

var obj = new MyBasicObj
{
	Type = ShortSizedEnum.Val2,
	Version = 511,
	Date = new DateTime(1998, 12, 30),

	DoNotReadOrWrite = ByteSizedEnum.Val1,

	ArrayWith16Elements = new uint[16]
	{
		0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
	},

	Bool32 = false,

	NullTerminatedASCIIString = "EndianBinaryIO",
	UTF16String = "Kermalis",
};

var writer = new EndianBinaryWriter(stream, endianness: Endianness.LittleEndian, booleanSize: BooleanSize.U32);
writer.WriteEnum(obj.Type); // Writes the enum type based on the amount of bytes of the enum's underlying type (short/2 in this case)
writer.WriteInt16(obj.Version); // Writes a 'short' (2 bytes)
writer.WriteDateTime(obj.Date); // Writes a 'DateTime' (8 bytes)
writer.WriteUInt32s(obj.ArrayWith16Elements); // Writes 16 'uint's (4 bytes each)
writer.WriteBoolean(obj.Bool32); // Writes a 'bool' (4 bytes in this case, since the reader's current bool state is BooleanSize.U32)

writer.ASCII = true; // Set the reader's ASCII state to true
writer.WriteChars_NullTerminated(obj.NullTerminatedASCIIString); // Writes the chars in the 'string' as ASCII and appends a '\0' at the end

writer.ASCII = false; // Set the reader's ASCII state to false (UTF16-LE)
writer.WriteChars_Count(obj.UTF16String, 10); // Writes 10 UTF16-LE chars as a 'string'. If the string has more than 10 chars, it is truncated; if it has less, it is padded with '\0'

Writing Automatically (With Reflection):

var obj = new MyBasicObj
{
	Type = ShortSizedEnum.Val2,
	Version = 511,
	Date = new DateTime(1998, 12, 30),

	DoNotReadOrWrite = ByteSizedEnum.Val1,

	ArrayWith16Elements = new uint[16]
	{
		0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
	},

	Bool32 = false,

	NullTerminatedASCIIString = "EndianBinaryIO",
	UTF16String = "Kermalis",
};

var writer = new EndianBinaryWriter(stream, endianness: Endianness.LittleEndian);
writer.Write(obj); // Write all properties in the 'MyBasicObj' in order, ignoring any with a 'BinaryIgnoreAttribute'
// Other objects that are properties in this object will also be written in the same way recursively

EndianBinaryPrimitives Example:

byte[] bytes = new byte[] { 0xFF, 0x00, 0x00, 0x00, 0xBB, 0xEE, 0xEE, 0xFF };
uint value = EndianBinaryPrimitives.ReadUInt32(bytes, Endianness.LittleEndian); // Will return 255

value = 128;
EndianBinaryPrimitives.WriteUInt32(bytes.AsSpan(4, 4), value, Endianness.LittleEndian); // bytes is now { 0xFF, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 }

EndianBinaryIOTests Uses:

Product Versions
.NET net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.
  • net6.0

    • No dependencies.

NuGet packages (3)

Showing the top 3 NuGet packages that depend on EndianBinaryIO:

Package Downloads
LNDroneController.LND

LNDroneController LND Implementation

LNBolt

LNBolt - C# BOLT protocol helpers

BliveWebsocket

Bilibili Danmu Websocket

GitHub repositories (3)

Showing the top 3 popular GitHub repositories that depend on EndianBinaryIO:

Repository Stars
Kermalis/VGMusicStudio
🎵 A program that lets you listen to the music from popular video game formats. 🎵
Kermalis/PokemonBattleEngine
A C# library that can emulate Pokémon battles.
Kermalis/PokemonGameEngine
A C# 2D Pokémon game engine and map editor.
Version Downloads Last updated
2.0.1 206 8/31/2022
2.0.0 133 8/30/2022
1.1.2 3,792 9/15/2020
1.1.1 448 9/11/2020
1.0.3 385 9/8/2020
1.0.2 293 9/8/2020
1.0.1 362 9/7/2020
1.0.0 307 9/7/2020

Version 2.0.1 Changelog:
* Added TrimNullTerminators(ref char[] chars) and TrimNullTerminators(ref Span<char> chars) to EndianBinaryPrimitives which will remove all '\0' from the end
* Added ReadSBytes(ReadOnlySpan<byte> src, Span<sbyte> dest) and WriteSBytes(Span<byte> dest, ReadOnlySpan<sbyte> src) to EndianBinaryPrimitives
* Added heavily optimized enum methods to EndianBinaryPrimitives that use the same optimization techniques as the ones in EndianBinaryReader and EndianBinaryWriter
* Added PeekBytes(Span<byte> dest) to EndianBinaryReader

No breaking changes from v2.0.0