gh-107913: Fix possible losses of OSError error codes (GH-107930)
Functions like PyErr_SetFromErrno() and SetFromWindowsErr() should be
called immediately after using the C API which sets errno or the Windows
error code.
(cherry picked from commit 2b15536fa9)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
(cherry picked from commit 7f87ebbc3f)
Clearly document the supported seek() operations:
- Rewind to the start of the stream
- Restore a previous stream position (given by tell())
- Fast-forward to the end of the stream
* gh-107915: Handle errors in C API functions PyErr_Set*() and PyErr_Format() (GH-107918)
Such C API functions as PyErr_SetString(), PyErr_Format(),
PyErr_SetFromErrnoWithFilename() and many others no longer crash or
ignore errors if it failed to format the error message or decode the
filename. Instead, they keep a corresponding error.
(cherry picked from commit 633ea217a8)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* Define PY_SSIZE_T_CLEAN.
---------
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
- Add explanatory comments
- Add return value to connection_close() for propagating errors
- Always check the return value of connection_exec_stmt()
- Assert pre/post state in remove_callbacks()
- Don't log unraisable exceptions in case of interpreter shutdown
- Make sure we're not initialized if reinit fails
- Try to close the database even if ROLLBACK fails
(cherry picked from commit fd19509220)
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
- name the last parameter *whence*, like it is for seek() methods on
file objects
- add param docstrings
- structure the valid *whence* params
(cherry picked from commit dd4442c8f5)
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Cover all the Mapping Protocol, almost all the Sequence Protocol
(except PySequence_Fast) and a part of the Object Protocol.
Move existing tests to Lib/test/test_capi/test_abstract.py and
Modules/_testcapi/abstract.c.
Add also tests for PyDict C API..
(cherry picked from commit 16c9415fba)
* Strings with length from 2**31-1 to 2**32-2 always caused MemoryError,
it doesn't matter how much memory is available.
* Strings with length exactly 2**32-1 caused OSError.
* Strings longer than 2**32-1 characters were truncated due to integer overflow bug.
* Strings containing the null character were truncated at the first null character.
Now strings longer than 2**31-1 characters caused OverflowError and the null character is allowed..
(cherry picked from commit 04cc01453d)
Restore the global Input Stream pointer after trying to match a sub-pattern.
.
(cherry picked from commit abd9cc52d9)
Co-authored-by: SKO <41810398+uyw4687@users.noreply.github.com>
gh-91054: make code watcher tests resilient to other watchers (GH-107821)
(cherry picked from commit 2ec16fed14)
Co-authored-by: Carl Meyer <carl@oddbird.net>
* Check for linux/limits.h before including it
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
(cherry picked from commit 11c055f5ff)
gh-104432: Use `memcpy()` to avoid misaligned loads (GH-104433)
Fix potential unaligned memory access on C APIs involving returned sequences
of `char *` pointers within the :mod:`grp` and :mod:`socket` modules. These
were revealed using a ``-fsaniziter=alignment`` build on ARM macOS.
(cherry picked from commit f01e4cedba)
Co-authored-by: Christopher Chavez <chrischavez@gmx.us>
The _xxsubinterpreters module was meant to only use public API. Some internal C-API usage snuck in over the last few years (e.g. gh-28969). This fixes that.
(cherry picked from commit e6373c0d8b)
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
gh-106831: Fix NULL check of d2i_SSL_SESSION() result in _ssl.c (GH-106832)
(cherry picked from commit ebf2c56b33)
Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
gh-106687: _ssl: use uint64_t for SSL options (GH-106700)
SSL_CTX_get_options() uses uint64_t for options:
https://www.openssl.org/docs/man3.1/man3/SSL_CTX_get_options.html
Fix this compiler warning on Windows with MSC:
conversion from 'uint64_t' to 'long', possible loss of data
(cherry picked from commit ad95c7253a)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-105235: Prevent reading outside buffer during mmap.find() (GH-105252)
* Add a special case for s[-m:] == p in _PyBytes_Find
* Add tests for _PyBytes_Find
* Make sure that start <= end in mmap.find
(cherry picked from commit ab86426a34)
Co-authored-by: Dennis Sweeney <36520290+sweeneyde@users.noreply.github.com>
gh-105227: Add PyType_GetDict() (GH-105747)
This compensates for static builtin types having `tp_dict` set to `NULL`.
(cherry picked from commit a840806d33)
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Some items remained uninitialized if _sre.template() was called with invalid
indices. Then attempt to clear them in the destructor led to dereferencing
of uninitialized pointer.
(cherry picked from commit 2ef1dc37f0)
Co-authored-by: Radislav Chugunov <52372310+chgnrdv@users.noreply.github.com>
gh-91053: make func watcher tests resilient to other func watchers (GH-106286)
(cherry picked from commit 58906213cc)
Co-authored-by: Carl Meyer <carl@oddbird.net>
[3.12] gh-106033: Get rid of new occurrences of PyDict_GetItem and PyObject_HasAttr (GH-106034)
These functions are broken by design because they discard any exceptions raised
inside, including MemoryError and KeyboardInterrupt. They should not be
used in new code.
(cherry picked from commit 1d33d53780)
For a while now, pending calls only run in the main thread (in the main interpreter). This PR changes things to allow any thread run a pending call, unless the pending call was explicitly added for the main thread to run.
(cherry picked from commit 757b402)
We are changing it to be more flexible that a strict bool can be for possible future expanded used cases.
(cherry picked from commit b97e14a806)
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
All fields must be explicitly initialised to prevent manipulation of
uninitialised fields in dealloc.
Align initialisation order with the layout of the object structs.
(cherry picked from commit ca3cc4b95d)
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
gh-105436: The environment block should end with two null wchar_t values (GH-105495)
(cherry picked from commit 4f7d3b602d)
Co-authored-by: Dora203 <66343334+sku2000@users.noreply.github.com>
Prevent repeated PyLong_FromVoidPtr() from possibly overwriting the
current exception.
(cherry picked from commit e8998e46a7)
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
Fix a bug where an IndexError could end up being overwritten.
(cherry picked from commit f668f73bc8)
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
Fix a bug where an exception could end up being overwritten.
(cherry picked from commit c932f72849)
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
Improve error handling so init bails on the first exception.
(cherry picked from commit 16d49680b5)
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
Fix a bug where 'tp_richcompare' could end up overwriting an exception.
(cherry picked from commit 35cff545db)
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
Fix bugs where exceptions could end up being overwritten
because of deferred error handling.
(cherry picked from commit 33c92c4f15)
Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
Bail on first error in heapctypesubclasswithfinalizer_finalize()
(cherry picked from commit d636d7dfe7)
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
Fix bugs where exceptions could end up being overwritten.
(cherry picked from commit 00b599ab5a)
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
