private IntPtr OpenImageFromData(byte[] assembly)
{
IntPtr statusPtr = _memory.Allocate(4);
IntPtr addr = Native.VirtualAllocEx(_handle, IntPtr.Zero, assembly.Length,
AllocationType.MEM_COMMIT, MemoryProtection.PAGE_READWRITE);
if (addr == IntPtr.Zero)
{
throw new InjectorException("Failed to allocate process memory", new Win32Exception(Marshal.GetLastWin32Error()));
}
_memory.Write(addr, assembly);
IntPtr rawImage = Execute(Exports[mono_image_open_from_data],
addr,
(IntPtr)assembly.Length,
(IntPtr)0,
statusPtr
);
MonoImageOpenStatus status = (MonoImageOpenStatus)_memory.ReadInt(statusPtr);
if (status != MonoImageOpenStatus.MONO_IMAGE_OK)
{
IntPtr messagePtr = Execute(Exports[mono_image_strerror], (IntPtr)status);
string message = _memory.ReadString(messagePtr, 256, Encoding.UTF8);
throw new InjectorException($"{mono_image_open_from_data}() failed: {message}");
}
_memory.Write(addr, new byte[ClearHeaderBytes]);
return(rawImage);
}
public IntPtr Allocate(int size)
{
IntPtr addr = Native.VirtualAllocEx(_handle, IntPtr.Zero, size, AllocationType.MEM_COMMIT, MemoryProtection.PAGE_EXECUTE_READWRITE);
if (addr == IntPtr.Zero)
{
throw new InjectorException("Failed to allocate process memory", new Win32Exception(Marshal.GetLastWin32Error()));
}
_allocations.Add(addr, size);
return(addr);
}
