How to Convert CAB to CPIO Using C#

First, you need to obtain and reference the Aspose.Zip library in your C# project. You can typically download it from the Aspose website or use a NuGet package if available. Package manager, search for Aspose.ZIP and install. You may also use the following command from the Package Manager Console.

Manage NuGet packages with the Visual Studio Package

Package Manager Console Command:

PM> Install-Package Aspose.Zip

Steps to Convert CAB to CPIO via C#

Convertation from CAB to CPIO consist of following steps:

  • Extract archive to intermediate storage
  • Compress extracted data to desired format

System Requirements

Before running the conversion example code, make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with .NET Framework, Mono and COM Interop.
  • Development environment like Microsoft Visual Studio.
  • Aspose.Tasks for .NET DLL referenced in your project.

Sample code to convert from CAB to CPIO

Converting from CAB format to various formats involves a multi-step process. A CAB archive typically contains multiple records or files. To achieve this conversion into formats such as GZ (Gzip), LZ (Lzip), Z (Unix Compress), XZ (XZ Utils), and BZ2 (Bzip2), a commonly employed approach is to initially package the contents into a TAR (Tape Archive) format. This method is reminiscent of common practices in Linux environments.

In this conversion procedure, each individual file or record within the CAB archive is first consolidated into a single TAR archive. This TAR archive serves as a container for these files, preserving their original structure and metadata intact. Once the data is encapsulated within the TAR archive, it becomes easier to apply various compression algorithms and formats.

The preference for TAR as an intermediate format arises from its simplicity and broad compatibility across various Unix-like operating systems. It provides a straightforward means of grouping files without applying compression directly. After the TAR packaging is complete, subsequent compression operations can be executed on the TAR archive to produce the desired output formats, such as GZ, LZ, Z, XZ, or BZ2.

Convert from CAB to CPIO - C#:

    using (CpioArchive tarArchive = new CpioArchive())
        using (CabArchive cabArchive = new CabArchive(""))
            for (int i = 0; i < cabArchive.Entries.Count; i++)
                var ms = new MemoryStream();
                ms.Seek(0, SeekOrigin.Begin);
                tarArchive.CreateEntry(cabArchive.Entries[i].Name, ms);


Free App to Convert CAB to CPIO

Check our live demos for CAB to CPIO conversion with following benefits

A reliable Aspose.ZIP Library that can compress, extract, encrypt, decrypt, convert and merge archives. Aspose.ZIP for .NET API allows to manipulate various archive types without without going into the underlying complexity of the compress file formats with minimum coding efforts.

Other Supported CAB Conversions

You can also convert CAB into many other file formats including few listed below.