internal MachO(Stream stream, bool is64, Endianess endianess, bool ownsStream)
{
this.is64 = is64;
using var reader = new SimpleEndianessAwareReader(stream, endianess, ownsStream);
Machine = (Machine)reader.ReadInt32();
reader.ReadBytes(4); // we don't support the cpu subtype now
FileType = (FileType)reader.ReadUInt32();
var noOfCommands = reader.ReadInt32();
reader.ReadInt32(); // size of commands
reader.ReadBytes(4); // we don't support flags now
if (is64)
{
reader.ReadBytes(4); // reserved
}
commands = new Command[noOfCommands];
ReadCommands(noOfCommands, stream, reader);
}
internal Dylib(SimpleEndianessAwareReader reader, Stream stream, uint commandSize) : base(reader, stream)
{
var offset = reader.ReadUInt32();
var timestamp = reader.ReadInt32();
var currentVersion = reader.ReadUInt32();
var compatibilityVersion = reader.ReadUInt32();
Timestamp = DateTimeOffset.FromUnixTimeSeconds(timestamp).UtcDateTime;
CurrentVersion = GetVersion(currentVersion);
CompatibilityVersion = GetVersion(compatibilityVersion);
Name = GetString(reader.ReadBytes((int)(commandSize - offset)));
}
public static IEnumerable <MachO> Enumerate(Stream stream, bool shouldOwnStream)
{
// Fat header is always big endian.
var reader = new SimpleEndianessAwareReader(stream, Endianess.BigEndian, !shouldOwnStream);
// We assume that fat magic has been already read.
var machOCount = reader.ReadInt32();
var alreadyRead = 0;
var fatEntriesBegin = stream.Position;
while (alreadyRead < machOCount)
{
// We're only interested in offset and size.
stream.Seek(fatEntriesBegin + 20 * alreadyRead + 8, SeekOrigin.Begin);
var offset = reader.ReadInt32();
var size = reader.ReadInt32();
var substream = new SubStream(stream, offset, size);
yield return(MachOReader.Load(substream, false));
alreadyRead++;
}
}