498 lines
16 KiB
C#
498 lines
16 KiB
C#
|
using System;
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
using System.IO;
|
|||
|
|
using System.Linq;
|
|||
|
|
using System.Reflection;
|
|||
|
|
using System.Text;
|
|||
|
|
|
|||
|
|
namespace MachOConverter
|
|||
|
|
{
|
|||
|
|
class Program
|
|||
|
|
{
|
|||
|
|
static void Main(string[] args)
|
|||
|
|
{
|
|||
|
|
if (args.Length < 1)
|
|||
|
|
{
|
|||
|
|
PrintUsage();
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (args[0] == "info" && args.Length >= 2)
|
|||
|
|
{
|
|||
|
|
for (var i = 1; i < args.Length; i++)
|
|||
|
|
{
|
|||
|
|
PrintInfo(args[i]);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else if (args[0] == "split" && args.Length >= 2)
|
|||
|
|
{
|
|||
|
|
for (var i = 1; i < args.Length; i++)
|
|||
|
|
{
|
|||
|
|
SplitFile(args[i]);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else if (args[0] == "merge" && args.Length >= 4)
|
|||
|
|
{
|
|||
|
|
var sources = args.Skip(2).ToList();
|
|||
|
|
if (sources.Any(Directory.Exists))
|
|||
|
|
MergeDir(args[1], args.Skip(2).ToList());
|
|||
|
|
else
|
|||
|
|
MergeFile(args[1], args.Skip(2).ToList());
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
PrintUsage();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
static void PrintUsage()
|
|||
|
|
{
|
|||
|
|
var path = Path.GetFileName(Assembly.GetExecutingAssembly().Location);
|
|||
|
|
Console.WriteLine($"Usage: {path} info [path]");
|
|||
|
|
Console.WriteLine($" {path} split [source]");
|
|||
|
|
Console.WriteLine($" {path} merge [target] [source1] [source2]");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
static void PrintInfo(string path)
|
|||
|
|
{
|
|||
|
|
var file = new MachOFile(path);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
static void SplitFile(string path)
|
|||
|
|
{
|
|||
|
|
var file = new MachOFile(path);
|
|||
|
|
|
|||
|
|
foreach (var entry in file.FatEntries)
|
|||
|
|
{
|
|||
|
|
var newPath = Path.ChangeExtension(path, "." + entry.cputype.ToString() + Path.GetExtension(path));
|
|||
|
|
|
|||
|
|
using (var src = new FileStream(path, FileMode.Open, FileAccess.Read))
|
|||
|
|
using (var dst = new FileStream(newPath, FileMode.Create, FileAccess.Write))
|
|||
|
|
{
|
|||
|
|
src.Seek(entry.offset, SeekOrigin.Begin);
|
|||
|
|
|
|||
|
|
var remaining = (int)entry.size;
|
|||
|
|
var buf = new byte[64 * 1024];
|
|||
|
|
while (remaining != 0)
|
|||
|
|
{
|
|||
|
|
var size = Math.Min(remaining, buf.Length);
|
|||
|
|
src.Read(buf, 0, size);
|
|||
|
|
dst.Write(buf, 0, size);
|
|||
|
|
remaining -= size;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
Console.WriteLine($"Wrote {entry.cputype} to {newPath}");
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
static void MergeDir(string outPath, List<string> sources)
|
|||
|
|
{
|
|||
|
|
if (!Directory.Exists(outPath))
|
|||
|
|
Directory.CreateDirectory(outPath);
|
|||
|
|
|
|||
|
|
var subdirs = sources.SelectMany(Directory.GetDirectories).Select(Path.GetFileName).Distinct().ToList();
|
|||
|
|
var files = sources.SelectMany(Directory.GetFiles).Select(Path.GetFileName).Distinct().ToList();
|
|||
|
|
|
|||
|
|
foreach (var subdir in subdirs)
|
|||
|
|
{
|
|||
|
|
MergeDir(Path.Combine(outPath, subdir), sources.ConvertAll(v => Path.Combine(v, subdir)).Where(Directory.Exists).ToList());
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
foreach (var file in files)
|
|||
|
|
{
|
|||
|
|
MergeFile(Path.Combine(outPath, file), sources.ConvertAll(v => Path.Combine(v, file)).Where(File.Exists).ToList());
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
static void MergeFile(string outPath, List<string> sources)
|
|||
|
|
{
|
|||
|
|
if (Directory.Exists(outPath))
|
|||
|
|
{
|
|||
|
|
outPath = Path.Combine(outPath, Path.GetFileName(sources[0]));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (!MachOFile.IsValidFile(sources[0]))
|
|||
|
|
{
|
|||
|
|
File.Copy(sources[0], outPath);
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
var sourceItems = sources.ConvertAll(v => new MachOFile(v));
|
|||
|
|
|
|||
|
|
var outFile = new MachOFile(outPath, true);
|
|||
|
|
|
|||
|
|
sourceItems.ForEach(outFile.AppendFile);
|
|||
|
|
|
|||
|
|
outFile.Write();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
class MachOFile
|
|||
|
|
{
|
|||
|
|
[Flags]
|
|||
|
|
public enum MachOCpuType : uint
|
|||
|
|
{
|
|||
|
|
VAX = 1,
|
|||
|
|
ROMP = 2,
|
|||
|
|
NS32032 = 4,
|
|||
|
|
NS32332 = 5,
|
|||
|
|
MC680x0 = 6,
|
|||
|
|
I386 = 7,
|
|||
|
|
X86 = 7,
|
|||
|
|
X86_64 = X86 | ABI64,
|
|||
|
|
MIPS = 8,
|
|||
|
|
NS32532 = 9,
|
|||
|
|
HPPA = 11,
|
|||
|
|
ARM = 12,
|
|||
|
|
MC88000 = 13,
|
|||
|
|
SPARC = 14,
|
|||
|
|
I860 = 15, // big-endian
|
|||
|
|
I860_LITTLE = 16, // little-endian
|
|||
|
|
RS6000 = 17,
|
|||
|
|
MC98000 = 18,
|
|||
|
|
POWERPC = 18,
|
|||
|
|
ABI64 = 0x1000000,
|
|||
|
|
ABI64_32 = 0x2000000,
|
|||
|
|
MASK = 0xff000000,
|
|||
|
|
POWERPC64 = POWERPC | ABI64,
|
|||
|
|
VEO = 255,
|
|||
|
|
ARM64 = ARM | ABI64,
|
|||
|
|
ARM64_32 = ARM | ABI64_32
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public enum MachOCpuSubType : uint
|
|||
|
|
{
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public class MachOArchEntry
|
|||
|
|
{
|
|||
|
|
public MachOCpuType cputype;
|
|||
|
|
public MachOCpuSubType cpusubtype;
|
|||
|
|
public uint filetype;
|
|||
|
|
public uint ncmds;
|
|||
|
|
public uint sizeofcmds;
|
|||
|
|
public uint flags;
|
|||
|
|
public uint reserved;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public class MachOFatEntry
|
|||
|
|
{
|
|||
|
|
public MachOCpuType cputype;
|
|||
|
|
public MachOCpuSubType cpusubtype;
|
|||
|
|
public uint offset;
|
|||
|
|
public uint size;
|
|||
|
|
public uint align;
|
|||
|
|
|
|||
|
|
public string path;
|
|||
|
|
public MachOFatEntry srcentry;
|
|||
|
|
public MachOArchEntry archentry;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
class BinaryReaderBigEndian : BinaryReader
|
|||
|
|
{
|
|||
|
|
public BinaryReaderBigEndian(Stream stream) : base(stream)
|
|||
|
|
{
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public new int ReadInt32()
|
|||
|
|
{
|
|||
|
|
var data = base.ReadBytes(4);
|
|||
|
|
if (BitConverter.IsLittleEndian)
|
|||
|
|
Array.Reverse(data);
|
|||
|
|
return BitConverter.ToInt32(data, 0);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public new short ReadInt16()
|
|||
|
|
{
|
|||
|
|
var data = base.ReadBytes(2);
|
|||
|
|
if (BitConverter.IsLittleEndian)
|
|||
|
|
Array.Reverse(data);
|
|||
|
|
return BitConverter.ToInt16(data, 0);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public new long ReadInt64()
|
|||
|
|
{
|
|||
|
|
var data = base.ReadBytes(8);
|
|||
|
|
if (BitConverter.IsLittleEndian)
|
|||
|
|
Array.Reverse(data);
|
|||
|
|
return BitConverter.ToInt64(data, 0);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public new uint ReadUInt32()
|
|||
|
|
{
|
|||
|
|
var data = base.ReadBytes(4);
|
|||
|
|
if (BitConverter.IsLittleEndian)
|
|||
|
|
Array.Reverse(data);
|
|||
|
|
return BitConverter.ToUInt32(data, 0);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
class BinaryWriterBigEndian : BinaryWriter
|
|||
|
|
{
|
|||
|
|
public BinaryWriterBigEndian(Stream stream) : base(stream, Encoding.UTF8, true)
|
|||
|
|
{
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public override void Write(int value)
|
|||
|
|
{
|
|||
|
|
var data = BitConverter.GetBytes(value);
|
|||
|
|
if (BitConverter.IsLittleEndian)
|
|||
|
|
Array.Reverse(data);
|
|||
|
|
base.Write(data);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public override void Write(uint value)
|
|||
|
|
{
|
|||
|
|
var data = BitConverter.GetBytes(value);
|
|||
|
|
if (BitConverter.IsLittleEndian)
|
|||
|
|
Array.Reverse(data);
|
|||
|
|
base.Write(data);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private string _path;
|
|||
|
|
private int _size;
|
|||
|
|
private MachOArchEntry _entry;
|
|||
|
|
private List<MachOFatEntry> _fatEntries = new List<MachOFatEntry>();
|
|||
|
|
|
|||
|
|
public MachOArchEntry Entry => _entry;
|
|||
|
|
public List<MachOFatEntry> FatEntries => _fatEntries;
|
|||
|
|
|
|||
|
|
public MachOFile(string path, bool create = false)
|
|||
|
|
{
|
|||
|
|
_path = path;
|
|||
|
|
|
|||
|
|
if (File.Exists(_path) && !create)
|
|||
|
|
{
|
|||
|
|
_size = (int)new FileInfo(_path).Length;
|
|||
|
|
|
|||
|
|
using (var stream = new FileStream(_path, FileMode.Open, FileAccess.Read))
|
|||
|
|
using (var reader = new BinaryReaderBigEndian(stream))
|
|||
|
|
{
|
|||
|
|
ReadFile(reader);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public static bool IsValidFile(string path)
|
|||
|
|
{
|
|||
|
|
if (!File.Exists(path))
|
|||
|
|
return false;
|
|||
|
|
|
|||
|
|
using (var stream = new FileStream(path, FileMode.Open, FileAccess.Read))
|
|||
|
|
using (var reader = new BinaryReaderBigEndian(stream))
|
|||
|
|
{
|
|||
|
|
var magic = reader.ReadUInt32();
|
|||
|
|
|
|||
|
|
if (magic == 0xCAFEBABE || magic == 0xCEFAEDFE || magic == 0xCFFAEDFE)
|
|||
|
|
{
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void ReadFile(BinaryReaderBigEndian reader)
|
|||
|
|
{
|
|||
|
|
var magic = reader.ReadUInt32();
|
|||
|
|
|
|||
|
|
if (magic == 0xCAFEBABE)
|
|||
|
|
{
|
|||
|
|
ReadFatFile(reader);
|
|||
|
|
foreach (var entry in _fatEntries)
|
|||
|
|
{
|
|||
|
|
Console.WriteLine($"Details for {entry.cputype}");
|
|||
|
|
reader.BaseStream.Seek(entry.offset, SeekOrigin.Begin);
|
|||
|
|
ReadFile(reader);
|
|||
|
|
entry.path = _path;
|
|||
|
|
entry.archentry = _entry;
|
|||
|
|
_entry = null;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else if (magic == 0xCEFAEDFE)
|
|||
|
|
{
|
|||
|
|
ReadFileArch32(reader);
|
|||
|
|
}
|
|||
|
|
else if (magic == 0xCFFAEDFE)
|
|||
|
|
{
|
|||
|
|
ReadFileArch64(reader);
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
throw new ApplicationException($"File {_path} contains unknown Mach-O header");
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void ReadFileArch32(BinaryReader reader)
|
|||
|
|
{
|
|||
|
|
_entry = new MachOArchEntry
|
|||
|
|
{
|
|||
|
|
cputype = (MachOCpuType)reader.ReadUInt32(),
|
|||
|
|
cpusubtype = (MachOCpuSubType)reader.ReadUInt32(),
|
|||
|
|
filetype = reader.ReadUInt32(),
|
|||
|
|
ncmds = reader.ReadUInt32(),
|
|||
|
|
sizeofcmds = reader.ReadUInt32(),
|
|||
|
|
flags = reader.ReadUInt32()
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
Console.WriteLine($"Found {_entry.cputype} filetype {_entry.filetype} flags {_entry.flags}");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void ReadFileArch64(BinaryReader reader)
|
|||
|
|
{
|
|||
|
|
_entry = new MachOArchEntry
|
|||
|
|
{
|
|||
|
|
cputype = (MachOCpuType)reader.ReadUInt32(),
|
|||
|
|
cpusubtype = (MachOCpuSubType)reader.ReadUInt32(),
|
|||
|
|
filetype = reader.ReadUInt32(),
|
|||
|
|
ncmds = reader.ReadUInt32(),
|
|||
|
|
sizeofcmds = reader.ReadUInt32(),
|
|||
|
|
flags = reader.ReadUInt32(),
|
|||
|
|
reserved = reader.ReadUInt32()
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
Console.WriteLine($"Found {_entry.cputype} filetype {_entry.filetype} flags {_entry.flags}");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void ReadFatFile(BinaryReaderBigEndian reader)
|
|||
|
|
{
|
|||
|
|
var numArchs = reader.ReadUInt32();
|
|||
|
|
|
|||
|
|
Console.WriteLine($"Found Mach-O Universal with {numArchs} items");
|
|||
|
|
|
|||
|
|
for (var i = 0; i < numArchs; i++)
|
|||
|
|
{
|
|||
|
|
var entry = new MachOFatEntry
|
|||
|
|
{
|
|||
|
|
cputype = (MachOCpuType)reader.ReadUInt32(),
|
|||
|
|
cpusubtype = (MachOCpuSubType)reader.ReadUInt32(),
|
|||
|
|
offset = reader.ReadUInt32(),
|
|||
|
|
size = reader.ReadUInt32(),
|
|||
|
|
align = reader.ReadUInt32()
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
Console.WriteLine($" - {entry.cputype} at offset {entry.offset} size {entry.size}");
|
|||
|
|
|
|||
|
|
_fatEntries.Add(entry);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
static int Align(int offset, int align)
|
|||
|
|
{
|
|||
|
|
offset += (1 << align) - 1;
|
|||
|
|
offset -= offset % (1 << align);
|
|||
|
|
|
|||
|
|
return offset;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void Write()
|
|||
|
|
{
|
|||
|
|
var align = 14;
|
|||
|
|
var offset = Align(4 + FatEntries.Count * 5 * 4, align);
|
|||
|
|
|
|||
|
|
// Determine offsets
|
|||
|
|
foreach (var entry in FatEntries)
|
|||
|
|
{
|
|||
|
|
entry.offset = (uint)offset;
|
|||
|
|
entry.align = (uint)align;
|
|||
|
|
|
|||
|
|
offset = Align(offset + (int)entry.size, align);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (FatEntries.Count == 0)
|
|||
|
|
{
|
|||
|
|
}
|
|||
|
|
else if (FatEntries.Count == 1)
|
|||
|
|
{
|
|||
|
|
Console.WriteLine($"Writing {_path} {FatEntries[0].cputype} from {FatEntries[0].srcentry.path}");
|
|||
|
|
File.Copy(FatEntries[0].srcentry.path, _path);
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
Console.WriteLine($"Writing {_path}:");
|
|||
|
|
using (var dst = new FileStream(_path, FileMode.Create, FileAccess.Write))
|
|||
|
|
{
|
|||
|
|
// Write Header
|
|||
|
|
using (var writer = new BinaryWriterBigEndian(dst))
|
|||
|
|
{
|
|||
|
|
writer.Write(0xCAFEBABE);
|
|||
|
|
writer.Write(FatEntries.Count);
|
|||
|
|
|
|||
|
|
foreach (var entry in FatEntries)
|
|||
|
|
{
|
|||
|
|
writer.Write((uint)entry.cputype);
|
|||
|
|
writer.Write((uint)entry.cpusubtype);
|
|||
|
|
writer.Write(entry.offset);
|
|||
|
|
writer.Write(entry.size);
|
|||
|
|
writer.Write(entry.align);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
foreach (var entry in FatEntries)
|
|||
|
|
{
|
|||
|
|
Console.WriteLine($" - {entry.cputype} from {entry.srcentry.path}");
|
|||
|
|
using (var src = new FileStream(entry.srcentry.path, FileMode.Open, FileAccess.Read))
|
|||
|
|
{
|
|||
|
|
dst.Seek(entry.offset, SeekOrigin.Begin);
|
|||
|
|
src.Seek(entry.srcentry.offset, SeekOrigin.Begin);
|
|||
|
|
|
|||
|
|
var remaining = (int)entry.size;
|
|||
|
|
var buf = new byte[64 * 1024];
|
|||
|
|
while (remaining != 0)
|
|||
|
|
{
|
|||
|
|
var size = Math.Min(remaining, buf.Length);
|
|||
|
|
src.Read(buf, 0, size);
|
|||
|
|
dst.Write(buf, 0, size);
|
|||
|
|
remaining -= size;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void AppendEntry(MachOFatEntry entry)
|
|||
|
|
{
|
|||
|
|
if (!FatEntries.Any(v => v.cputype == entry.cputype))
|
|||
|
|
{
|
|||
|
|
FatEntries.Add(new MachOFatEntry()
|
|||
|
|
{
|
|||
|
|
cputype = entry.cputype,
|
|||
|
|
cpusubtype = entry.cpusubtype,
|
|||
|
|
offset = 0,
|
|||
|
|
size = entry.size,
|
|||
|
|
align = entry.align,
|
|||
|
|
|
|||
|
|
srcentry = entry,
|
|||
|
|
archentry = entry.archentry
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void AppendFile(MachOFile file)
|
|||
|
|
{
|
|||
|
|
if (file.Entry != null)
|
|||
|
|
{
|
|||
|
|
AppendEntry(new MachOFatEntry
|
|||
|
|
{
|
|||
|
|
cputype = file.Entry.cputype,
|
|||
|
|
cpusubtype = file.Entry.cpusubtype,
|
|||
|
|
offset = 0,
|
|||
|
|
size = (uint)file._size,
|
|||
|
|
align = 0,
|
|||
|
|
path = file._path,
|
|||
|
|
archentry = file.Entry
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
file.FatEntries.ForEach(AppendEntry);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|