Commit Graph

316 Commits

Author SHA1 Message Date
Miss Islington (bot) 9e3c583954
bpo-40795: ctypes calls unraisablehook with an exception (GH-20452)
If ctypes fails to convert the result of a callback or if a ctypes
callback function raises an exception, sys.unraisablehook is now
called with an exception set. Previously, the error was logged into
stderr by PyErr_Print().
(cherry picked from commit 10228bad04)

Co-authored-by: Victor Stinner <vstinner@python.org>
2020-05-27 16:00:01 -07:00
Miss Islington (bot) 788d7bfe18
bpo-13097: ctypes: limit callback to 1024 arguments (GH-19914)
ctypes now raises an ArgumentError when a callback
is invoked with more than 1024 arguments.

The ctypes module allocates arguments on the stack in
ctypes_callproc() using alloca(), which is problematic
when large numbers of arguments are passed. Instead
of a stack overflow, this commit raises an ArgumentError
if more than 1024 parameters are passed.
(cherry picked from commit 29a1384c04)

Co-authored-by: Sean Gillespie <sean@swgillespie.me>
2020-05-27 08:46:57 -07:00
Victor Stinner 90549676e0
bpo-40443: Remove unused imports in the stdlib (GH-19803) 2020-04-30 11:26:33 +02:00
Steve Dower 9b49893900
bpo-40214: Fix ctypes WinDLL test with insecure flags (GH-19652) 2020-04-22 17:04:46 +01:00
Zachary Ware f407e209c1
bpo-40214: Temporarily disable a ctypes test (GH-19404)
Only one particular sub-test of
ctypes.test.test_loading.test_load_dll_with_flags is disabled, which
caused failures on Azure Pipelines CI.
2020-04-07 01:39:58 -05:00
Vinay Sajip c12440c371
bpo-16575: Disabled checks for union types being passed by value. (GH-17960)
Although the underlying libffi issue remains open, adding these
checks have caused problems in third-party projects which are in
widespread use. See the issue for examples.

The corresponding tests have also been skipped.
2020-01-12 08:54:00 +00:00
Vinay Sajip 106271568c
bpo-16576: Add checks for bitfields passed by value to functions. (GH-17097) 2019-11-12 12:29:34 +00:00
Vinay Sajip 79d4ed102a
bpo-16575: Add checks for unions passed by value to functions. (GH-16799) 2019-10-31 08:03:54 +00:00
Vinay Sajip e8bedbddad
bpo-38368: Added fix for ctypes crash when handling arrays in structs… (GH-16589) 2019-10-08 21:59:06 +01:00
Vinay Sajip cc28ed2421
bpo-22273: Removed temporary test skipping on PPC platforms. (GH-16399) 2019-09-25 20:57:20 +01:00
Vinay Sajip 417089e88b
bpo-22273: Re-enabled ctypes test on ARM machines. (GH-16388) 2019-09-25 15:05:55 +01:00
Vinay Sajip c64af8fad3
Changed conditions for ctypes array-in-struct handling. (GH-16381) 2019-09-25 11:11:57 +01:00
Vinay Sajip 57dc7d5ae8
bpo-22273: Disabled tests while investigating buildbot failures on ARM7L/PPC64. (GH-16377) 2019-09-25 07:58:32 +01:00
Vinay Sajip 12f209eccb
bpo-22273: Update ctypes to correctly handle arrays in small structur… (GH-15839) 2019-09-25 04:38:44 +01:00
Ben Harper a9b6033179 bpo-36253: Remove use after free reference in ctypes test suite (GH-12257) 2019-09-10 08:20:15 -07:00
Victor Stinner 96b4087ce7
bpo-37140: Fix StructUnionType_paramfunc() (GH-15612)
Fix a ctypes regression of Python 3.8. When a ctypes.Structure is
passed by copy to a function, ctypes internals created a temporary
object which had the side effect of calling the structure finalizer
(__del__) twice. The Python semantics requires a finalizer to be
called exactly once. Fix ctypes internals to no longer call the
finalizer twice.

Create a new internal StructParam_Type which is only used by
_ctypes_callproc() to call PyMem_Free(ptr) on Py_DECREF(argument).
StructUnionType_paramfunc() creates such object.
2019-08-30 14:30:33 +02:00
Zackery Spytz 9765efcb39 bpo-19865: ctypes.create_unicode_buffer() supports non-BMP strings on Windows (GH-14081) 2019-06-14 17:53:59 +02:00
Stefan Krah 307d4cb957
Use assertEqual(). (#13883) 2019-06-07 11:18:34 +02:00
Eric Wieser 0690c79c41 bpo-37188: Fix a divide-by-zero in arrays of size-0 objects (#13881) 2019-06-07 10:13:26 +02:00
Zackery Spytz 14514d9084 bpo-36946: Fix possible signed integer overflow when handling slices. (GH-13375)
The final addition (cur += step) may overflow, so use size_t for "cur".
"cur" is always positive (even for negative steps), so it is safe to use
size_t here.

Co-Authored-By: Martin Panter <vadmium+py@gmail.com>
2019-05-17 10:13:03 +03:00
Pablo Galindo 8c77b8cb91
bpo-36540: PEP 570 -- Implementation (GH-12701)
This commit contains the implementation of PEP570: Python positional-only parameters.

* Update Grammar/Grammar with new typedarglist and varargslist

* Regenerate grammar files

* Update and regenerate AST related files

* Update code object

* Update marshal.c

* Update compiler and symtable

* Regenerate importlib files

* Update callable objects

* Implement positional-only args logic in ceval.c

* Regenerate frozen data

* Update standard library to account for positional-only args

* Add test file for positional-only args

* Update other test files to account for positional-only args

* Add News entry

* Update inspect module and related tests
2019-04-29 13:36:57 +01:00
Zackery Spytz 487b73ab39 bpo-36504: Fix signed integer overflow in _ctypes.c's PyCArrayType_new(). (GH-12660) 2019-04-02 13:47:51 +03:00
Steve Dower ac19d96527
bpo-36085: Add additional load flag to ensure DLL loads successfully (GH-12633) 2019-03-30 17:14:46 -07:00
Steve Dower 2438cdf0e9
bpo-36085: Enable better DLL resolution on Windows (GH-12302) 2019-03-29 16:37:16 -07:00
Paul Monson 32119e10b7 bpo-35947: Update Windows to the current version of libffi (GH-11797)
We now use a pre-built libffi binary from our binaries repository, and no longer vendor the full implementation.
2019-03-29 16:30:10 -07:00
Serhiy Storchaka 6a44f6eef3
bpo-36048: Use __index__() instead of __int__() for implicit conversion if available. (GH-11952)
Deprecate using the __int__() method in implicit conversions of Python
numbers to C integers.
2019-02-25 17:57:58 +02:00
Michael Felt 22462da70c bpo-27643 - skip test_ctypes test case with XLC compiler. (GH-5164)
This test case needs "signed short" bitfields, but the
IBM XLC compiler (on AIX) does not support this.

Skip the code and test when AIX and XLC are used.

Use __xlc__ as identifier to detect the XLC compiler.
2018-12-26 13:54:22 +10:00
Zackery Spytz 842acaab13 bpo-35504: Fix segfaults and SystemErrors when deleting certain attrs. (GH-11175) 2018-12-17 16:52:45 +02:00
Serhiy Storchaka 3ffa8b9ba1
bpo-35384: The repr of ctypes.CArgObject no longer fails for non-ascii character. (GH-10863) 2018-12-06 11:16:24 +02:00
Tal Einat 2447773573
bpo-29843: raise AttributeError if given negative _length_ (GH-10029)
Raise ValueError OverflowError in case of a negative
_length_ in a ctypes.Array subclass.  Also raise TypeError
instead of AttributeError for non-integer _length_.


Co-authored-by: Oren Milman <orenmn@gmail.com>
2018-10-22 18:33:10 +03:00
Serhiy Storchaka 4642d5f598
Use assertEqual() instead of assertEquals(). (GH-9721)
Fixes warnings in tests added in bpo-32117 and bpo-34603.
2018-10-05 21:09:56 +03:00
Serhiy Storchaka 79d1c2e6c9
bpo-25711: Rewrite zipimport in pure Python. (GH-6809) 2018-09-18 22:22:29 +03:00
Vladimir Matveev 7843caeb90 bpo-34603, ctypes/libffi_msvc: Fix returning structs from functions (GH-9258) 2018-09-15 22:36:29 -07:00
Sergey Fedoseev b796e7dcdc Fixed several assertTrue() that were intended to be assertEqual(). (GH-8191)
Fixed also testing the "always" warning filter.
2018-07-09 18:25:55 +03:00
Segev Finer 735abadd5b bpo-16865: Support arrays >=2GB in ctypes. (GH-3006) 2018-05-15 02:54:29 +03:00
Oren Milman d518d8bc8d bpo-21983: Fix a crash in ctypes.cast() when passed a ctypes structured data type (GH-3859) 2018-05-09 14:38:56 -07:00
Mike 53f7a7c281 bpo-32297: Few misspellings found in Python source code comments. (#4803)
* Fix multiple typos in code comments

* Add spacing in comments (test_logging.py, test_math.py)

* Fix spaces at the beginning of comments in test_logging.py
2017-12-14 13:04:53 +02:00
Victor Stinner 884d13a55f time.clock() now emits a DeprecationWarning (GH-4020)
bpo-31803: time.clock() and time.get_clock_info('clock') now emit a
DeprecationWarning warning.

Replace time.clock() with time.perf_counter() in tests and demos.

Remove also hasattr(time, 'monotonic') in test_time since time.monotonic()
is now always available since Python 3.5.
2017-10-17 14:46:45 -07:00
Oren Milman 57c2561c8c bpo-31311: Fix a SystemError and a crash in ctypes._CData.__setstate__(), in case of a bad __dict__. (#3254) 2017-09-25 11:09:11 +03:00
Oren Milman 30b61b51e0 bpo-31490: Fix an assertion failure in ctypes in case an _anonymous_ attr is defined only outside _fields_. (#3615) 2017-09-17 13:45:38 +03:00
Antoine Pitrou a6a4dc816d bpo-31370: Remove support for threads-less builds (#3385)
* Remove Setup.config
* Always define WITH_THREAD for compatibility.
2017-09-07 18:56:24 +02:00
Pauli Virtanen 07f1658aa0 bpo-10746: Fix ctypes PEP 3118 type codes for c_long, c_bool, c_int (#31)
Ctypes currently produces wrong pep3118 type codes for several types.
E.g. memoryview(ctypes.c_long()).format gives "<l" on 64-bit platforms,
but it should be "<q" instead for sizeof(c_long) == 8

The problem is that the '<>' endian specification in the struct syntax
also turns on the "standard size" mode, which makes type characters have
a platform-independent meaning, which does not match with the codes used
internally in ctypes.  The struct module format syntax also does not
allow specifying native-size non-native-endian items.

This commit adds a converter function that maps the internal ctypes
codes to appropriate struct module standard-size codes in the pep3118
format strings. The tests are modified to check for this.
2017-08-28 14:08:49 +02:00
Serhiy Storchaka f7eae0adfc [security] bpo-13617: Reject embedded null characters in wchar* strings. (#2302)
Based on patch by Victor Stinner.

Add private C API function _PyUnicode_AsUnicode() which is similar to
PyUnicode_AsUnicode(), but checks for null characters.
2017-06-28 08:30:06 +03:00
Serhiy Storchaka e613e6add5 bpo-30708: Check for null characters in PyUnicode_AsWideCharString(). (#2285)
Raise a ValueError if the second argument is NULL and the wchar_t\*
string contains null characters.
2017-06-27 16:03:14 +03:00
Erik Bray 9ba3aa4d02 bpo-30353: Fix pass by value for structs on 64-bit Cygwin/MinGW (GH-1559) 2017-06-07 18:42:24 +01:00
Victor Stinner a36e939aeb bpo-30125: disable faulthandler in ctypes test_SEH (#1237)
Disable faulthandler to run test_SEH() of test_ctypes to prevent the
following log with a traceback:

    Windows fatal exception: access violation

Add support.disable_faulthandler() context manager.
2017-04-22 00:31:13 +02:00
Serhiy Storchaka 24c738a9e9 bpo-29845: Mark tests that use _testcapi as CPython-only (#711) 2017-03-19 20:20:10 +02:00
orenmn 1bea762d9e bpo-28129: fix ctypes crashes (#386)
* init commit, with initial tests for from_param and fields __set__ and __get__, and some additions to from_buffer and from_buffer_copy

* added the rest of tests and patches. probably only a first draft.

* removed trailing spaces

* replace ctype with ctypes in error messages

* change back from ctypes instance to ctype instance
2017-03-02 18:42:40 +01:00
Vinay Sajip a86339b83f Fixed bpo-29565: Corrected ctypes passing of large structs by value on Windows AMD64. (#168)
* Fixed bpo-29565: Corrected ctypes passing of large structs by value.

Added code and test to check that when a structure passed by value
is large enough to need to be passed by reference, a copy of the
original structure is passed. The callee updates the passed-in value,
and the test verifies that the caller's copy is unchanged. A similar
change was also added to the test added for bpo-20160 (that test was
passing, but the changes should guard against regressions).

* Reverted unintended whitespace changes.
2017-02-20 00:16:33 +00:00
Martin Panter 04b35753f7 Issue #25659: Merge ctypes fix from 3.5 2016-11-20 22:07:29 +00:00