public void CheckInvalidBSDFileEntry()
{
// Input invalid BSD Length
{
var stream = new MemoryStream();
stream.Write(ArArchiveFile.Magic);
var entry = new Span <byte>(new byte[ArFile.FileEntrySizeInBytes]);
entry.Fill((byte)' ');
entry[0] = (byte)'#';
entry[1] = (byte)'1';
entry[2] = (byte)'/';
entry[3] = (byte)'a';
stream.Write(entry);
stream.Position = 0;
Assert.False(ArArchiveFile.TryRead(stream, ArArchiveKind.BSD, out _, out var diagnostics));
ExpectDiagnostics(diagnostics, DiagnosticId.AR_ERR_InvalidCharacterFoundInFileEntry);
}
// Input invalid BSD Length
{
var stream = new MemoryStream();
stream.Write(ArArchiveFile.Magic);
var entry = new Span <byte>(new byte[ArFile.FileEntrySizeInBytes]);
entry.Fill((byte)' ');
entry[0] = (byte)'#';
entry[1] = (byte)'1';
entry[2] = (byte)'/';
entry[3] = (byte)'2'; // it will try to read 2 bytes for the name but won't find it
entry[ArFile.FieldEndCharactersOffset] = (byte)'`';
entry[ArFile.FieldEndCharactersOffset + 1] = (byte)'\n';
stream.Write(entry);
var continuePosition = stream.Position;
stream.Position = 0;
Assert.False(ArArchiveFile.TryRead(stream, ArArchiveKind.BSD, out _, out var diagnostics));
ExpectDiagnostics(diagnostics, DiagnosticId.AR_ERR_UnexpectedEndOfFile);
// Check validity of BSD name
stream.Position = continuePosition;
stream.WriteByte((byte)'a');
stream.WriteByte((byte)'b');
stream.Position = 0;
var result = ArArchiveFile.TryRead(stream, ArArchiveKind.BSD, out var arFile, out diagnostics);
Assert.True(result, $"Error while reading file: {diagnostics}");
Assert.AreEqual(1, arFile.Files.Count, "Invalid number of file entries found");
Assert.AreEqual("ab", arFile.Files[0].Name, "Invalid name of file entry[0] found");
Assert.Null(arFile.SymbolTable, "Invalid non-null symbol table found");
}
}
public void CheckInvalidFileEntry()
{
// Incorrect entry length
{
var stream = new MemoryStream();
stream.Write(ArArchiveFile.Magic);
stream.Write(new byte[] { (byte)'a', (byte)'b' });
stream.Position = 0;
Assert.False(ArArchiveFile.TryRead(stream, ArArchiveKind.GNU, out _, out var diagnostics));
ExpectDiagnostics(diagnostics, DiagnosticId.AR_ERR_InvalidFileEntryLength);
}
// Input invalid non-numeric characters into decimal/octal fields in file entry
{
var offsets = new int[]
{
ArFile.FieldTimestampOffset,
ArFile.FieldOwnerIdOffset,
ArFile.FieldGroupIdOffset,
ArFile.FieldFileModeOffset,
ArFile.FieldFileSizeOffset,
ArFile.FieldEndCharactersOffset
};
foreach (var offset in offsets)
{
var stream = new MemoryStream();
stream.Write(ArArchiveFile.Magic);
var entry = new Span <byte>(new byte[ArFile.FileEntrySizeInBytes]);
entry.Fill((byte)' ');
entry[offset] = (byte)'a';
stream.Write(entry);
stream.Position = 0;
Assert.False(ArArchiveFile.TryRead(stream, ArArchiveKind.GNU, out _, out var diagnostics));
ExpectDiagnostics(diagnostics, DiagnosticId.AR_ERR_InvalidCharacterFoundInFileEntry);
}
}
// Input name with `/`
{
var stream = new MemoryStream();
stream.Write(ArArchiveFile.Magic);
var entry = new Span <byte>(new byte[ArFile.FileEntrySizeInBytes]);
entry.Fill((byte)' ');
entry[0] = (byte)'a';
entry[1] = (byte)'b';
entry[2] = (byte)'/';
entry[3] = (byte)'c';
entry[ArFile.FieldEndCharactersOffset] = (byte)'`';
entry[ArFile.FieldEndCharactersOffset + 1] = (byte)'\n';
stream.Write(entry);
stream.Position = 0;
Assert.False(ArArchiveFile.TryRead(stream, ArArchiveKind.GNU, out _, out var diagnostics));
ExpectDiagnostics(diagnostics, DiagnosticId.AR_ERR_InvalidCharacterInFileEntryName);
}
// Input length of content
{
var stream = new MemoryStream();
stream.Write(ArArchiveFile.Magic);
var entry = new Span <byte>(new byte[ArFile.FileEntrySizeInBytes]);
entry.Fill((byte)' ');
entry[0] = (byte)'a';
entry[ArFile.FieldFileSizeOffset] = (byte)'2';
entry[ArFile.FieldEndCharactersOffset] = (byte)'`';
entry[ArFile.FieldEndCharactersOffset + 1] = (byte)'\n';
stream.Write(entry);
var continuePosition = stream.Position;
stream.Position = 0;
Assert.False(ArArchiveFile.TryRead(stream, ArArchiveKind.GNU, out _, out var diagnostics));
ExpectDiagnostics(diagnostics, DiagnosticId.AR_ERR_UnexpectedEndOfFile);
stream.Position = continuePosition;
stream.WriteByte(0);
stream.WriteByte(1);
stream.Position = 0;
// Check that we can actually read the content
var result = ArArchiveFile.TryRead(stream, ArArchiveKind.GNU, out var arFile, out diagnostics);
ExpectNoDiagnostics(diagnostics);
Assert.True(result, $"Error while reading file: {diagnostics}");
Assert.AreEqual(1, arFile.Files.Count, "Invalid number of file entries found");
Assert.AreEqual("a", arFile.Files[0].Name, "Invalid name of file entry[0] found");
Assert.AreEqual(2, arFile.Files[0].Size, "Invalid size of file entry[0] found");
Assert.IsInstanceOf <ArBinaryFile>(arFile.Files[0], "Invalid instance of of file entry[0] ");
var fileStream = ((ArBinaryFile)arFile.Files[0]).Stream;
var read = new byte[]
{
(byte)fileStream.ReadByte(),
(byte)fileStream.ReadByte()
};
Assert.AreEqual(new byte[] { 0, 1 }, read, "Invalid content of of file entry[0] ");
Assert.Null(arFile.SymbolTable, "Invalid non-null symbol table found");
}
// Input length of content
{
var stream = new MemoryStream();
stream.Write(ArArchiveFile.Magic);
var entry = new Span <byte>(new byte[ArFile.FileEntrySizeInBytes]);
entry.Fill((byte)' ');
entry[0] = (byte)'a';
entry[ArFile.FieldFileSizeOffset] = (byte)'1';
entry[ArFile.FieldEndCharactersOffset] = (byte)'`';
entry[ArFile.FieldEndCharactersOffset + 1] = (byte)'\n';
stream.Write(entry);
stream.WriteByte(0);
var continuePosition = stream.Position;
stream.Position = 0;
Assert.False(ArArchiveFile.TryRead(stream, ArArchiveKind.GNU, out _, out var diagnostics));
ExpectDiagnostics(diagnostics, DiagnosticId.AR_ERR_UnexpectedEndOfFile);
stream.Position = continuePosition;
stream.WriteByte(0);
stream.Position = 0;
Assert.False(ArArchiveFile.TryRead(stream, ArArchiveKind.GNU, out _, out diagnostics));
ExpectDiagnostics(diagnostics, DiagnosticId.AR_ERR_ExpectingNewLineCharacter);
stream.Position = continuePosition;
stream.WriteByte((byte)'\n');
stream.Position = 0;
Assert.True(ArArchiveFile.TryRead(stream, ArArchiveKind.GNU, out _, out diagnostics));
ExpectNoDiagnostics(diagnostics);
}
}