public void Run()
{
foreach (var file in Files)
{
using var stream = new FileStream(file, FileMode.Open, FileAccess.Read);
if (ArArchiveFile.IsAr(stream))
{
var options = new ArArchiveFileReaderOptions(ArArchiveKind.GNU);
var archive = ArArchiveFile.Read(stream, options);
foreach (var objFile in archive.Files)
{
if (objFile is ArElfFile elfFile)
{
ProcessElf(objFile.Name, elfFile.ElfObjectFile);
}
}
}
else if (ElfObjectFile.IsElf(stream))
{
var elfObjectFile = ElfObjectFile.Read(stream, new ElfReaderOptions()
{
ReadOnly = true
});
ProcessElf(Path.GetFileName(file), elfObjectFile);
}
}
}
public void CheckLibraryWithELF()
{
var cppName = "helloworld";
var cppObj = $"{cppName}.o";
var cppLib = $"lib{cppName}.a";
File.Delete(cppObj);
File.Delete(cppLib);
LinuxUtil.RunLinuxExe("gcc", $"{cppName}.cpp -c -o {cppObj}");
LinuxUtil.RunLinuxExe("ar", $"rcs {cppLib} {cppObj}");
using (var stream = new FileStream(cppLib, FileMode.Open, FileAccess.Read))
{
Assert.True(ArArchiveFile.IsAr(stream));
var arFile = ArArchiveFile.Read(stream, new ArArchiveFileReaderOptions(ArArchiveKind.GNU)
{
ProcessObjectFiles = false
});
var elfFile = arFile.Files.FirstOrDefault(x => x.Name == cppObj);
Assert.NotNull(elfFile, $"Unable to find {cppObj} file in {cppLib}");
Assert.NotNull(arFile.SymbolTable, $"Unable to find symbol table in {cppLib}");
Assert.AreEqual(1, arFile.SymbolTable.Symbols.Count, "Invalid number of symbols in Symbol table");
Assert.AreEqual("main", arFile.SymbolTable.Symbols[0].Name, "Invalid symbol found");
Assert.AreEqual(elfFile, arFile.SymbolTable.Symbols[0].File, "Invalid symbol to file found");
var outStream = new MemoryStream();
arFile.Write(outStream);
var newArray = outStream.ToArray();
outStream.Position = 0;
var cppLibCopy = $"lib{cppName}_copy.a";
using (var copyStream = new FileStream(cppLibCopy, FileMode.Create, FileAccess.Write))
{
outStream.CopyTo(copyStream);
}
var originalStream = new MemoryStream();
stream.Position = 0;
stream.CopyTo(originalStream);
var originalArray = originalStream.ToArray();
Assert.AreEqual(originalArray, newArray, $"Non binary matching between file {cppLib} and {cppLibCopy}");
}
}
public void CheckCreateArLibrary()
{
var libName = "libcustom.a";
var file = new ArArchiveFile();
using (var stream = new FileStream(libName, FileMode.Create, FileAccess.Write))
{
var symbolTable = new ArSymbolTable();
file.AddFile(symbolTable);
file.AddFile(new ArBinaryFile()
{
Name = "file2.txt", OwnerId = 0666, Stream = new MemoryStream(Encoding.UTF8.GetBytes("this is file"))
});
file.AddFile(new ArBinaryFile()
{
Name = "file3.txt", OwnerId = 0777, GroupId = 0744, Stream = new MemoryStream(Encoding.UTF8.GetBytes("this is file3"))
});
file.AddFile(new ArBinaryFile()
{
Name = "file4.txt", OwnerId = 0777, GroupId = 0744, Stream = new MemoryStream(Encoding.UTF8.GetBytes("this is file4"))
});
file.AddFile(new ArBinaryFile()
{
Name = "file5.txt", OwnerId = 0706, GroupId = 0705, FileMode = 0x123456, Stream = new MemoryStream(Encoding.UTF8.GetBytes("this is file5"))
});
file.AddFile(new ArBinaryFile()
{
Name = "long_file_name_large_file6.txt", Timestamp = DateTimeOffset.UtcNow.AddSeconds(-2), Stream = new MemoryStream(Encoding.UTF8.GetBytes("this is file6 yoyo"))
});
symbolTable.Symbols.Add(new ArSymbol()
{
File = file.Files[1], Name = "my_symbol"
});
file.Write(stream);
stream.Flush();
}
// Check that AR is able to read back what we just serialized
{
var fileNameBuilder = new StringBuilder();
foreach (var fileEntry in file.Files)
{
if (fileEntry.IsSystem)
{
continue;
}
fileNameBuilder.Append($"{fileEntry.Name}\n");
}
var fileNameList = fileNameBuilder.ToString().Trim();
var fileNameListFromAr = LinuxUtil.RunLinuxExe("ar", $"t {libName}").Trim();
Assert.AreEqual(fileNameListFromAr, fileNameList);
}
// Display the content of each file via AR
{
var contentBuilder = new StringBuilder();
foreach (var fileEntry in file.Files)
{
if (!(fileEntry is ArBinaryFile arBinary))
{
continue;
}
arBinary.Stream.Position = 0;
contentBuilder.Append(Encoding.UTF8.GetString(((MemoryStream)arBinary.Stream).ToArray()));
}
var content = contentBuilder.ToString().Trim();
var contentFromAr = LinuxUtil.RunLinuxExe("ar", $"p {libName}").Trim();
Assert.AreEqual(contentFromAr, content);
}
ArArchiveFile file2;
using (var stream = new FileStream(libName, FileMode.Open, FileAccess.Read))
{
file2 = ArArchiveFile.Read(stream, ArArchiveKind.GNU);
}
Assert.NotNull(file2.SymbolTable);
CompareArFiles(file, file2);
var libNameBsd = "libcustom_bsd.a";
file.Kind = ArArchiveKind.BSD;
using (var stream = new FileStream(libNameBsd, FileMode.Create, FileAccess.Write))
{
file.Write(stream);
stream.Flush();
}
ArArchiveFile archiveFileBsd;
using (var stream = new FileStream(libNameBsd, FileMode.Open, FileAccess.Read))
{
archiveFileBsd = ArArchiveFile.Read(stream, ArArchiveKind.BSD);
}
CompareArFiles(file, archiveFileBsd);
}