dexter/dex/debugger/dbgeng/utils.py

# DExTer : Debugging Experience Tester
# ~~~~~~   ~         ~~         ~   ~~
#
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

from ctypes import *

# Error codes are negative when received by python, but are typically
# represented by unsigned hex elsewhere. Subtract 2^32 from the unsigned
# hex to produce negative error codes.
E_NOINTERFACE = 0x80004002 - 0x100000000
E_FAIL = 0x80004005 - 0x100000000
E_EINVAL = 0x80070057 - 0x100000000
E_INTERNALEXCEPTION = 0x80040205 - 0x100000000
S_FALSE = 1

# This doesn't fit into any convenient category
DEBUG_ANY_ID = 0xFFFFFFFF

class WinError(Exception):
  def __init__(self, msg, hstatus):
    self.hstatus = hstatus
    super(WinError, self).__init__(msg)

def aborter(res, msg, ignore=[]):
  if res != 0 and res not in ignore:
    # Convert a negative error code to a positive unsigned one, which is
    # now NTSTATUSes appear in documentation.
    if res < 0:
      res += 0x100000000
    msg = '{:08X} : {}'.format(res, msg)
    raise WinError(msg, res)

IID_Data4_Type = c_ubyte * 8

class IID(Structure):
  _fields_ = [
      ("Data1", c_uint),
      ("Data2", c_ushort),
      ("Data3", c_ushort),
      ("Data4", IID_Data4_Type)
  ]

c_ulong_p = POINTER(c_ulong)
c_ulong64_p = POINTER(c_ulonglong)