public void ShouldOpenNotFatMachOUsingFatMethod()
{
var machOs = MachOReader.LoadFat(Utilities.GetBinaryStream("MachO-OSX-ppc-openssl-1.0.1h"), true);
Assert.AreEqual(1, machOs.Count);
Assert.AreEqual(Machine.PowerPc, machOs[0].Machine);
}
public void ShouldOpenMachO()
{
var fileName = Utilities.GetBinaryLocation("simple-mach-o");
ELFSharp.MachO.MachO machO;
Assert.AreEqual(MachOResult.OK, MachOReader.TryLoad(fileName, out machO));
}
public void ShouldOpen32BitMachOAsStream()
{
var fileName = Utilities.GetBinary("simple-32-mach-o");
var machO = MachOReader.Load(File.OpenRead(fileName));
Assert.AreEqual(Machine.I386, machO.Machine);
}
public void ShouldFindCorrectMachine()
{
var fileName = Utilities.GetBinaryLocation("simple-mach-o");
var machO = MachOReader.Load(fileName);
Assert.AreEqual(Machine.X86_64, machO.Machine);
}
public void ShouldOpen32BitMachO()
{
var fileName = Utilities.GetBinaryLocation("simple-32-mach-o");
var machO = MachOReader.Load(fileName);
Assert.AreEqual(Machine.I386, machO.Machine);
}
public void ShouldListSymbols()
{
var machO = MachOReader.Load(Utilities.GetBinaryStream("shared-32-mach-o"), true);
var symbolTable = machO.GetCommandsOfType <SymbolTable>().Single();
CollectionAssert.IsSubsetOf(new [] { "_funkcja", "_inna_funkcja", "_jeszcze_inna_funkcja" }, symbolTable.Symbols.Select(x => x.Name).ToArray());
}
public void ShouldHaveZeroExceptions()
{
var fileName = Utilities.GetBinary("simple-mach-o");
var machO = MachOReader.Load(fileName, false);
Assert.AreEqual(0, machO.Exceptions.Count);
}
public void ShouldFind64BitEntryPoint()
{
var machO = MachOReader.Load(Utilities.GetBinaryStream("simple-mach-o"), true);
var entryPoint = machO.GetCommandsOfType <EntryPoint>().Single();
Assert.AreEqual(0xF6B, entryPoint.Value);
Assert.AreEqual(0, entryPoint.StackSize);
}
public void ShouldFindSectionWithProperData64()
{
var machO = MachOReader.Load(Utilities.GetBinaryStream("simple-mach-o"), true);
var segment = machO.GetCommandsOfType <Segment>().Single(x => x.Name == "__TEXT");
var data = segment.Sections.Single(x => x.Name == "__cstring").GetData();
Assert.AreEqual(Encoding.ASCII.GetBytes("Hello world\0"), data);
}
public void ShouldOpenFatMachO()
{
var machOs = MachOReader.LoadFat(Utilities.GetBinaryStream("Undecimus"), true);
Assert.AreEqual(2, machOs.Count);
Assert.AreEqual(Machine.Arm64, machOs[0].Machine);
Assert.AreEqual(Machine.Arm64, machOs[1].Machine);
}
public static void ShouldFindSectionWithDataAndNoDataArm64(string segmentName, string sectionName)
{
var machO = MachOReader.Load(Utilities.GetBinaryStream(@"3dengine_libretro_ios.dylib"), true);
var segment = machO.GetCommandsOfType <Segment>().Single(x => x.Name == "__TEXT");
var section = segment.Sections.Single(x => x.Name == "__text");
section.GetData();
}
public void ShouldOpenMachOObjectFile()
{
// intermediate object file has only 1 segment.
var result = MachOReader.TryLoad(Utilities.GetBinaryStream("simple-mach-o-object.o"), true, out ELFSharp.MachO.MachO machO);
Assert.AreEqual(MachOResult.OK, result);
Assert.AreEqual(machO.FileType, FileType.Object);
Assert.AreEqual(machO.GetCommandsOfType <Segment>().Count(), 1);
}
public void ShouldFind32BitEntryPoint()
{
var fileName = Utilities.GetBinary("simple-32-mach-o");
var machO = MachOReader.Load(fileName);
var entryPoint = machO.GetCommandsOfType <EntryPoint>().Single();
Assert.AreEqual(0xF60, entryPoint.Value);
Assert.AreEqual(0, entryPoint.StackSize);
}
public void ShouldFindIdDylib()
{
var machO = MachOReader.Load(Utilities.GetBinaryStream("3dengine_libretro_ios.dylib"), true);
var idDylib = machO.GetCommandsOfType <IdDylib>().Single();
Assert.AreEqual("3dengine_libretro_ios.dylib", idDylib.Name);
Assert.AreEqual(new DateTime(1970, 1, 1, 0, 0, 1, 0, DateTimeKind.Utc), idDylib.Timestamp);
Assert.AreEqual(new Version(0, 0, 0), idDylib.CurrentVersion);
Assert.AreEqual(new Version(0, 0, 0), idDylib.CompatibilityVersion);
}
public static byte[] ReadBytesOrThrow(this Stream stream, int count, Dictionary <string, long> exceptionsToQueue = null)
{
var result = new byte[count];
while (count > 0)
{
var readThisTurn = stream.Read(result, result.Length - count, count);
if (readThisTurn == 0)
{
if (exceptionsToQueue != null)
{
MachOReader.AddException(exceptionsToQueue, new EndOfStreamException().Message);
Array.Resize(ref result, result.Length - count);
return(result);
}
throw new EndOfStreamException($"End of stream reached while {count} bytes more expected.");
}
count -= readThisTurn;
}
return(result);
}
public void ShouldFindLoadDylibs()
{
var machO = MachOReader.Load(Utilities.GetBinaryStream("3dengine_libretro_ios.dylib"), true);
var loadDylibs = machO.GetCommandsOfType <LoadDylib>().ToList();
Assert.AreEqual(3, loadDylibs.Count);
Assert.AreEqual("/System/Library/Frameworks/OpenGLES.framework/OpenGLES", loadDylibs[0].Name);
Assert.AreEqual(new DateTime(1970, 1, 1, 0, 0, 2, 0, DateTimeKind.Utc), loadDylibs[0].Timestamp);
Assert.AreEqual(new Version(1, 0, 0), loadDylibs[0].CurrentVersion);
Assert.AreEqual(new Version(1, 0, 0), loadDylibs[0].CompatibilityVersion);
Assert.AreEqual("/usr/lib/libSystem.B.dylib", loadDylibs[1].Name);
Assert.AreEqual(new DateTime(1970, 1, 1, 0, 0, 2, 0, DateTimeKind.Utc), loadDylibs[1].Timestamp);
Assert.AreEqual(new Version(1281, 0, 0), loadDylibs[1].CurrentVersion);
Assert.AreEqual(new Version(1, 0, 0), loadDylibs[1].CompatibilityVersion);
Assert.AreEqual("/usr/lib/libc++.1.dylib", loadDylibs[2].Name);
Assert.AreEqual(new DateTime(1970, 1, 1, 0, 0, 2, 0, DateTimeKind.Utc), loadDylibs[2].Timestamp);
Assert.AreEqual(new Version(800, 7, 0), loadDylibs[2].CurrentVersion);
Assert.AreEqual(new Version(1, 0, 0), loadDylibs[2].CompatibilityVersion);
}
public void ShouldOpen32BitMachO()
{
var machO = MachOReader.Load(Utilities.GetBinaryStream("simple-32-mach-o"), true);
Assert.AreEqual(Machine.X86, machO.Machine);
}
internal override unsafe bool GetFileVersion(string dll, out int major, out int minor, out int revision, out int patch)
{
using FileStream stream = File.OpenRead(dll);
MachOReader reader = new MachOReader(stream);
MachOHeader64 header = reader.Read <MachOHeader64>();
if (header.Magic != MachOHeader64.ExpectedMagic)
{
throw new NotSupportedException();
}
long dataOffset = 0;
long dataSize = 0;
byte[] dataSegmentName = Encoding.ASCII.GetBytes("__DATA\0");
byte[] dataSectionName = Encoding.ASCII.GetBytes("__data\0");
for (int c = 0; c < header.NumberOfCommands; c++)
{
MachOCommand command = reader.Read <MachOCommand>();
MachOCommandType commandType = command.Command;
int commandSize = command.CommandSize;
if (commandType == MachOCommandType.Segment64)
{
long position = stream.Position;
MachOSegmentCommand64 segmentCommand = reader.Read <MachOSegmentCommand64>();
if (new ReadOnlySpan <byte>(segmentCommand.SegmentName, dataSegmentName.Length).SequenceEqual(dataSegmentName))
{
for (int s = 0; s < segmentCommand.NumberOfSections; s++)
{
MachOSection64 section = reader.Read <MachOSection64>();
if (new ReadOnlySpan <byte>(section.SectionName, dataSectionName.Length).SequenceEqual(dataSectionName))
{
dataOffset = section.Offset;
dataSize = section.Size;
break;
}
}
break;
}
stream.Position = position;
}
stream.Seek(commandSize - sizeof(MachOCommand), SeekOrigin.Current);
}
Span <byte> buffer = stackalloc byte[s_versionLength];
long address = dataOffset;
long endAddress = address + dataSize;
Span <byte> bytes = stackalloc byte[1];
Span <char> chars = stackalloc char[1];
while (address < endAddress)
{
int read = reader.Read(address, buffer);
if (read < s_versionLength)
{
break;
}
if (!buffer.SequenceEqual(s_versionString))
{
address++;
continue;
}
address += s_versionLength;
// TODO: This should be cleaned up to not read byte by byte in the future. Leaving it here
// until we decide whether to rewrite the Linux coredumpreader or not.
StringBuilder builder = new StringBuilder();
while (address < endAddress)
{
read = reader.Read(address, bytes);
if (read < bytes.Length)
{
break;
}
if (bytes[0] == '\0')
{
break;
}
if (bytes[0] == ' ')
{
try
{
Version v = Version.Parse(builder.ToString());
major = v.Major;
minor = v.Minor;
revision = v.Build;
patch = v.Revision;
return(true);
}
catch (FormatException)
{
break;
}
}
fixed(byte *bytesPtr = &MemoryMarshal.GetReference(bytes))
fixed(char *charsPtr = &MemoryMarshal.GetReference(chars))
{
_ = Encoding.ASCII.GetChars(bytesPtr, bytes.Length, charsPtr, chars.Length);
}
_ = builder.Append(chars[0]);
address++;
}
break;
}
major = minor = revision = patch = 0;
return(false);
}
public void ShouldOpenMachO()
{
var fileName = Utilities.GetBinary("simple-mach-o");
Assert.AreEqual(MachOResult.OK, MachOReader.IsMachO(fileName));
}
public void ShouldOpenMachO()
{
Assert.AreEqual(MachOResult.OK,
MachOReader.TryLoad(Utilities.GetBinaryStream("simple-mach-o"), true, out _));
}
public void ShouldFindCorrectMachine()
{
var machO = MachOReader.Load(Utilities.GetBinaryStream("simple-mach-o"), true);
Assert.AreEqual(Machine.X86_64, machO.Machine);
}
public void ShouldOpenBigEndianMachO()
{
var machO = MachOReader.Load(Utilities.GetBinaryStream("MachO-OSX-ppc-openssl-1.0.1h"), true);
Assert.AreEqual(Machine.PowerPc, machO.Machine);
}
public void ShouldRecognizeFatMachO()
{
var result = MachOReader.TryLoad(Utilities.GetBinaryStream("Undecimus"), true, out _);
Assert.AreEqual(MachOResult.FatMachO, result);
}
public void ShouldThrowOnFatMachOWhenOpenedAsNotFat()
{
Assert.Throws <InvalidOperationException>(() => MachOReader.Load(Utilities.GetBinaryStream("Undecimus"), true));
}