Python _ctypes._SimpleCData() Examples

The following are 20 code examples of _ctypes._SimpleCData(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module _ctypes , or try the search function .
Example #1
Source File: remotectypes.py    From LKD with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
def _handle_field_getattr(self, ftype, fosset, fsize):
        s = self._target.read_memory(self._base_addr + fosset, fsize)
        if ftype in self._field_type_to_remote_type:
            return self._field_type_to_remote_type[ftype].from_buffer_with_target(bytearray(s), target=self._target).value
        if issubclass(ftype, _ctypes._Pointer):  # Pointer
            return RemoteStructurePointer.from_buffer_with_target_and_ptr_type(bytearray(s), target=self._target, ptr_type=ftype)
        if issubclass(ftype, RemotePtr64):  # Pointer to remote64 bits process
            return RemoteStructurePointer64.from_buffer_with_target_and_ptr_type(bytearray(s), target=self._target, ptr_type=ftype)
        if issubclass(ftype, RemoteStructureUnion):  # Structure|Union already transfomed in remote
            return ftype(self._base_addr + fosset, self._target)
        if issubclass(ftype, ctypes.Structure):  # Structure that must be transfomed
            return RemoteStructure.from_structure(ftype)(self._base_addr + fosset, self._target)
        if issubclass(ftype, ctypes.Union):  # Union that must be transfomed
            return RemoteUnion.from_structure(ftype)(self._base_addr + fosset, self._target)
        if issubclass(ftype, _ctypes.Array):  # Arrays
            return create_remote_array(ftype._type_, ftype._length_)(self._base_addr + fosset, self._target)
        # Normal types
        # Follow the ctypes usage: if it's not directly inherited from _SimpleCData
        # We do not apply the .value
        # Seems weird but it's mandatory AND useful :D (in pe_parse)
        if _SimpleCData not in ftype.__bases__:
            return ftype.from_buffer(bytearray(s))
        return ftype.from_buffer(bytearray(s)).value
Example #2
Source File: test_functions.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_mro(self):
        # in Python 2.3, this raises TypeError: MRO conflict among bases classes,
        # in Python 2.2 it works.
        #
        # But in early versions of _ctypes.c, the result of tp_new
        # wasn't checked, and it even crashed Python.
        # Found by Greg Chapman.

        try:
            class X(object, Array):
                _length_ = 5
                _type_ = "i"
        except TypeError:
            pass


        from _ctypes import _Pointer
        try:
            class X(object, _Pointer):
                pass
        except TypeError:
            pass

        from _ctypes import _SimpleCData
        try:
            class X(object, _SimpleCData):
                _type_ = "i"
        except TypeError:
            pass

        try:
            class X(object, Structure):
                _fields_ = []
        except TypeError:
            pass
Example #3
Source File: test_functions.py    From android_universal with MIT License 5 votes vote down vote up 
def test_mro(self):
        # in Python 2.3, this raises TypeError: MRO conflict among bases classes,
        # in Python 2.2 it works.
        #
        # But in early versions of _ctypes.c, the result of tp_new
        # wasn't checked, and it even crashed Python.
        # Found by Greg Chapman.

        try:
            class X(object, Array):
                _length_ = 5
                _type_ = "i"
        except TypeError:
            pass


        from _ctypes import _Pointer
        try:
            class X(object, _Pointer):
                pass
        except TypeError:
            pass

        from _ctypes import _SimpleCData
        try:
            class X(object, _SimpleCData):
                _type_ = "i"
        except TypeError:
            pass

        try:
            class X(object, Structure):
                _fields_ = []
        except TypeError:
            pass
Example #4
Source File: test_bytes.py    From android_universal with MIT License 5 votes vote down vote up 
def test_BSTR(self):
        from _ctypes import _SimpleCData
        class BSTR(_SimpleCData):
            _type_ = "X"

        BSTR("abc")
Example #5
Source File: remotectypes.py    From PythonForWindows with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def _handle_field_getattr(self, ftype, fosset, fsize):
        s = self._target.read_memory(self._base_addr + fosset, fsize)
        if ftype in self._field_type_to_remote_type:
            return self._field_type_to_remote_type[ftype].from_buffer_with_target(bytearray(s), target=self._target).value
        if issubclass(ftype, _ctypes._Pointer):  # Pointer
            return RemoteStructurePointer.from_buffer_with_target_and_ptr_type(bytearray(s), target=self._target, ptr_type=ftype)
        if issubclass(ftype, RemotePtr64):  # Pointer to remote64 bits process
            return RemoteStructurePointer64.from_buffer_with_target_and_ptr_type(bytearray(s), target=self._target, ptr_type=ftype)
        if issubclass(ftype, RemotePtr32):  # Pointer to remote32 bits process
            return RemoteStructurePointer32.from_buffer_with_target_and_ptr_type(bytearray(s), target=self._target, ptr_type=ftype)
        if issubclass(ftype, RemoteStructureUnion):  # Structure|Union already transfomed in remote
            return ftype(self._base_addr + fosset, self._target)
        if issubclass(ftype, ctypes.Structure):  # Structure that must be transfomed
            return RemoteStructure.from_structure(ftype)(self._base_addr + fosset, self._target)
        if issubclass(ftype, ctypes.Union):  # Union that must be transfomed
            return RemoteUnion.from_structure(ftype)(self._base_addr + fosset, self._target)
        if issubclass(ftype, _ctypes.Array):  # Arrays
            # if this is a string: just cast the read value to string
            if ftype._type_ == ctypes.c_char: # Use issubclass instead ?
                return s.split("\x00", 1)[0]
            elif ftype._type_ == ctypes.c_wchar: # Use issubclass instead ?
                # Decode from utf16 -> size /=2 | put it in a wchar array | split at the first "\x00"
                return (ftype._type_ * (fsize / 2)).from_buffer_copy(s.decode('utf16'))[:].split("\x00", 1)[0] # Sorry..
            # I am pretty sur something smarter is possible..
            return create_remote_array(ftype._type_, ftype._length_)(self._base_addr + fosset, self._target)
        # Normal types
        # Follow the ctypes usage: if it's not directly inherited from _SimpleCData
        # We do not apply the .value
        # Seems weird but it's mandatory AND useful :D (in pe_parse)
        if _SimpleCData not in ftype.__bases__:
            return ftype.from_buffer(bytearray(s))
        return ftype.from_buffer(bytearray(s)).value
Example #6
Source File: remotectypes.py    From PythonForWindows with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def is_union_type(x):
    return issubclass(x, ctypes.Union)

# ### My types ### #

# # 64bits pointer types # #

# I know direct inheritance from _SimpleCData seems bad
# But it seems to be the only way to have the normal
# ctypes.Structure way of working (need to investigate)
Example #7
Source File: test_functions.py    From odoo13-x64 with GNU General Public License v3.0 5 votes vote down vote up 
def test_mro(self):
        # in Python 2.3, this raises TypeError: MRO conflict among bases classes,
        # in Python 2.2 it works.
        #
        # But in early versions of _ctypes.c, the result of tp_new
        # wasn't checked, and it even crashed Python.
        # Found by Greg Chapman.

        try:
            class X(object, Array):
                _length_ = 5
                _type_ = "i"
        except TypeError:
            pass


        from _ctypes import _Pointer
        try:
            class X(object, _Pointer):
                pass
        except TypeError:
            pass

        from _ctypes import _SimpleCData
        try:
            class X(object, _SimpleCData):
                _type_ = "i"
        except TypeError:
            pass

        try:
            class X(object, Structure):
                _fields_ = []
        except TypeError:
            pass
Example #8
Source File: test_bytes.py    From odoo13-x64 with GNU General Public License v3.0 5 votes vote down vote up 
def test_BSTR(self):
        from _ctypes import _SimpleCData
        class BSTR(_SimpleCData):
            _type_ = "X"

        BSTR("abc")
Example #9
Source File: test_functions.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def test_mro(self):
        # in Python 2.3, this raises TypeError: MRO conflict among bases classes,
        # in Python 2.2 it works.
        #
        # But in early versions of _ctypes.c, the result of tp_new
        # wasn't checked, and it even crashed Python.
        # Found by Greg Chapman.

        try:
            class X(object, Array):
                _length_ = 5
                _type_ = "i"
        except TypeError:
            pass


        from _ctypes import _Pointer
        try:
            class X(object, _Pointer):
                pass
        except TypeError:
            pass

        from _ctypes import _SimpleCData
        try:
            class X(object, _SimpleCData):
                _type_ = "i"
        except TypeError:
            pass

        try:
            class X(object, Structure):
                _fields_ = []
        except TypeError:
            pass
Example #10
Source File: test_bytes.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def test_BSTR(self):
        from _ctypes import _SimpleCData
        class BSTR(_SimpleCData):
            _type_ = "X"

        BSTR("abc")
Example #11
Source File: test_functions.py    From datafari with Apache License 2.0 5 votes vote down vote up 
def test_mro(self):
        # in Python 2.3, this raises TypeError: MRO conflict among bases classes,
        # in Python 2.2 it works.
        #
        # But in early versions of _ctypes.c, the result of tp_new
        # wasn't checked, and it even crashed Python.
        # Found by Greg Chapman.

        try:
            class X(object, Array):
                _length_ = 5
                _type_ = "i"
        except TypeError:
            pass


        from _ctypes import _Pointer
        try:
            class X(object, _Pointer):
                pass
        except TypeError:
            pass

        from _ctypes import _SimpleCData
        try:
            class X(object, _SimpleCData):
                _type_ = "i"
        except TypeError:
            pass

        try:
            class X(object, Structure):
                _fields_ = []
        except TypeError:
            pass
Example #12
Source File: test_functions.py    From ironpython2 with Apache License 2.0 5 votes vote down vote up 
def test_mro(self):
        # in Python 2.3, this raises TypeError: MRO conflict among bases classes,
        # in Python 2.2 it works.
        #
        # But in early versions of _ctypes.c, the result of tp_new
        # wasn't checked, and it even crashed Python.
        # Found by Greg Chapman.

        try:
            class X(object, Array):
                _length_ = 5
                _type_ = "i"
        except TypeError:
            pass


        from _ctypes import _Pointer
        try:
            class X(object, _Pointer):
                pass
        except TypeError:
            pass

        from _ctypes import _SimpleCData
        try:
            class X(object, _SimpleCData):
                _type_ = "i"
        except TypeError:
            pass

        try:
            class X(object, Structure):
                _fields_ = []
        except TypeError:
            pass
Example #13
Source File: test_bytes.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_BSTR(self):
        from _ctypes import _SimpleCData
        class BSTR(_SimpleCData):
            _type_ = "X"

        BSTR("abc")
Example #14
Source File: test_functions.py    From Imogen with MIT License 5 votes vote down vote up 
def test_mro(self):
        # in Python 2.3, this raises TypeError: MRO conflict among bases classes,
        # in Python 2.2 it works.
        #
        # But in early versions of _ctypes.c, the result of tp_new
        # wasn't checked, and it even crashed Python.
        # Found by Greg Chapman.

        try:
            class X(object, Array):
                _length_ = 5
                _type_ = "i"
        except TypeError:
            pass


        from _ctypes import _Pointer
        try:
            class X(object, _Pointer):
                pass
        except TypeError:
            pass

        from _ctypes import _SimpleCData
        try:
            class X(object, _SimpleCData):
                _type_ = "i"
        except TypeError:
            pass

        try:
            class X(object, Structure):
                _fields_ = []
        except TypeError:
            pass
Example #15
Source File: test_bytes.py    From Imogen with MIT License 5 votes vote down vote up 
def test_BSTR(self):
        from _ctypes import _SimpleCData
        class BSTR(_SimpleCData):
            _type_ = "X"

        BSTR("abc")
Example #16
Source File: test_functions.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def test_mro(self):
        # in Python 2.3, this raises TypeError: MRO conflict among bases classes,
        # in Python 2.2 it works.
        #
        # But in early versions of _ctypes.c, the result of tp_new
        # wasn't checked, and it even crashed Python.
        # Found by Greg Chapman.

        try:
            class X(object, Array):
                _length_ = 5
                _type_ = "i"
        except TypeError:
            pass


        from _ctypes import _Pointer
        try:
            class X(object, _Pointer):
                pass
        except TypeError:
            pass

        from _ctypes import _SimpleCData
        try:
            class X(object, _SimpleCData):
                _type_ = "i"
        except TypeError:
            pass

        try:
            class X(object, Structure):
                _fields_ = []
        except TypeError:
            pass
Example #17
Source File: test_bytes.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def test_BSTR(self):
        from _ctypes import _SimpleCData
        class BSTR(_SimpleCData):
            _type_ = "X"

        BSTR("abc")
Example #18
Source File: test_functions.py    From oss-ftp with MIT License 5 votes vote down vote up 
def test_mro(self):
        # in Python 2.3, this raises TypeError: MRO conflict among bases classes,
        # in Python 2.2 it works.
        #
        # But in early versions of _ctypes.c, the result of tp_new
        # wasn't checked, and it even crashed Python.
        # Found by Greg Chapman.

        try:
            class X(object, Array):
                _length_ = 5
                _type_ = "i"
        except TypeError:
            pass


        from _ctypes import _Pointer
        try:
            class X(object, _Pointer):
                pass
        except TypeError:
            pass

        from _ctypes import _SimpleCData
        try:
            class X(object, _SimpleCData):
                _type_ = "i"
        except TypeError:
            pass

        try:
            class X(object, Structure):
                _fields_ = []
        except TypeError:
            pass
Example #19
Source File: test_functions.py    From BinderFilter with MIT License 5 votes vote down vote up 
def test_mro(self):
        # in Python 2.3, this raises TypeError: MRO conflict among bases classes,
        # in Python 2.2 it works.
        #
        # But in early versions of _ctypes.c, the result of tp_new
        # wasn't checked, and it even crashed Python.
        # Found by Greg Chapman.

        try:
            class X(object, Array):
                _length_ = 5
                _type_ = "i"
        except TypeError:
            pass


        from _ctypes import _Pointer
        try:
            class X(object, _Pointer):
                pass
        except TypeError:
            pass

        from _ctypes import _SimpleCData
        try:
            class X(object, _SimpleCData):
                _type_ = "i"
        except TypeError:
            pass

        try:
            class X(object, Structure):
                _fields_ = []
        except TypeError:
            pass
Example #20
Source File: remotectypes.py    From LKD with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def is_union_type(x):
    return issubclass(x, ctypes.Union)

# ### My types ### #

# # 64bits pointer types # #

# I know direct inheritance from _SimpleCData seems bad
# But it seems to be the only way to have the normal
# ctypes.Structure way of working (need to investigate)