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* closes bpo-39510: Fix use-after-free in BufferedReader.readinto() (GH-18295)Miss Islington (bot)2020-02-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | When called on a closed object, readinto() segfaults on account of a write to a freed buffer: ==220553== Process terminating with default action of signal 11 (SIGSEGV): dumping core ==220553== Access not within mapped region at address 0x2A ==220553== at 0x48408A0: memmove (vg_replace_strmem.c:1272) ==220553== by 0x58DB0C: _buffered_readinto_generic (bufferedio.c:972) ==220553== by 0x58DCBA: _io__Buffered_readinto_impl (bufferedio.c:1053) ==220553== by 0x58DCBA: _io__Buffered_readinto (bufferedio.c.h:253) Reproducer: reader = open ("/dev/zero", "rb") _void = reader.read (42) reader.close () reader.readinto (bytearray (42)) GH-GH-GH- BANG! The problem exists since 2012 when commit dc469454ec added code to free the read buffer on close(). Signed-off-by: Philipp Gesang <philipp.gesang@intra2net.com> (cherry picked from commit cb1c0746f277052e45a60d6c436a765e34722821) Co-authored-by: Philipp Gesang <phg@phi-gamma.net>
* [3.7] closes bpo-27805: Ignore ESPIPE in initializing seek of append-mode ↵Benjamin Peterson2019-11-121-9/+15
| | | | | | files. (GH-17137) This change, which follows the behavior of C stdio's fdopen and Python 2's file object, allows pipes to be opened in append mode.. (cherry picked from commit 74fa9f723f700a342e582b5ad4b51a2c4801cd1c)
* Fix the error handling in bytesio_sizeof(). (GH-10459)Miss Islington (bot)2019-06-011-2/+7
| | | | | | bytesio_sizeof() must check if an error has occurred in _PySys_GetSizeOf(). (cherry picked from commit 36dcaab7fde5d2e54cdeff5b705b5adcb27726dd) Co-authored-by: Zackery Spytz <zspytz@gmail.com>
* bpo-2091: Fix typo in exception message (GH-12987)Miss Islington (bot)2019-04-271-1/+1
| | | | | (cherry picked from commit 21a9ba1992775b5a833da28bfa0a9f028d1b6761) Co-authored-by: Berker Peksag <berker.peksag@gmail.com>
* bpo-36523: Add docstring to io.IOBase.writelines (GH-12683)Marcin Niemira2019-04-222-3/+12
| | | (cherry picked from commit ab86521a9d9999731e39bd9056420bb7774fd144)
* [3.7] bpo-36254: Fix invalid uses of %d in format strings in C. (GH-12264). ↵Serhiy Storchaka2019-03-141-1/+1
| | | | | | | (GH-12322) (cherry picked from commit d53fe5f407ff4b529628b01a1bcbf21a6aad5c3a) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-35504: Fix segfaults and SystemErrors when deleting certain attrs. ↵Miss Islington (bot)2018-12-171-0/+4
| | | | | | | (GH-11175) (cherry picked from commit 842acaab1376c5c84fd5966bb6070e289880e1ca) Co-authored-by: Zackery Spytz <zspytz@gmail.com>
* bpo-35436: Add missing PyErr_NoMemory() calls and other minor bug fixes. ↵Zackery Spytz2018-12-071-2/+4
| | | | | (GH-11015) (GH-11020) (cherry picked from commit 4c49da0cb7434c676d70b9ccf38aca82ac0d64a9)
* bpo-33029: Fix signatures of getter and setter functions. (GH-10746)Miss Islington (bot)2018-11-271-1/+1
| | | | | | Fix also return type for few other functions (clear, releasebuffer). (cherry picked from commit d4f9cf5545d6d8844e0726552ef2e366f5cc3abd) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-35133: Fix mistakes when concatenate string literals on different lines. ↵Miss Islington (bot)2018-11-051-1/+1
| | | | | | | | | | | | (GH-10284) Two kind of mistakes: 1. Missed space. After concatenating there is no space between words. 2. Missed comma. Causes unintentional concatenating in a list of strings. (cherry picked from commit 34fd4c20198dea6ab2fe8dc6d32d744d9bde868d) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-35062: Fix parsing _io.IncrementalNewlineDecoder's *translate* argument. ↵Miss Islington (bot)2018-10-311-1/+1
| | | | | | | | | (GH-10217) _io.IncrementalNewlineDecoder's initializer possibly assigns out-of-range value to the bitwise struct field. (cherry picked from commit b08746bfdf64e55ce33516f2065fa2aa4f51be95) Co-authored-by: Xiang Zhang <angwerzx@126.com>
* bpo-24658: Fix read/write greater than 2 GiB on macOS (GH-1705)Miss Islington (bot)2018-10-181-5/+3
| | | | | | On macOS, fix reading from and writing into a file with a size larger than 2 GiB. (cherry picked from commit 74a8b6ea7e0a8508b13a1c75ec9b91febd8b5557) Co-authored-by: Stéphane Wirtel <stephane@wirtel.be>
* bpo-34217: Use lowercase for windows headers (GH-8472)Miss Islington (bot)2018-08-161-1/+1
| | | | | (cherry picked from commit e6a4755e6793942b950c1595e0c34bd66a0ee13e) Co-authored-by: Erik Janssens <erik.janssens@conceptive.be>
* bpo-30237: Output error when ReadConsole is canceled by CancelSynchronousIo. ↵Miss Islington (bot)2018-07-291-1/+5
| | | | | | | (GH-7911) (cherry picked from commit ce75df3031c86b78311b1ad76c39c0b39d7d7424) Co-authored-by: ValeriyaSinevich <valeriya.sinevich@phystech.edu>
* bpo-34068: _io__IOBase_close_impl could call _PyObject_SetAttrId with an ↵Miss Islington (bot)2018-07-171-5/+7
| | | | | | | exception set (GH-8282) (cherry picked from commit 28f07364f066792ceee93231dbb80ae8ad98b2bb) Co-authored-by: Zackery Spytz <zspytz@gmail.com>
* bpo-25862: Fix several bugs in the _io module. (GH-8026)Miss Islington (bot)2018-06-302-8/+17
| | | | | | | | | | | | | | They can be exposed when some C API calls fail due to lack of memory. * Failed Py_BuildValue() could cause an assertion error in the following TextIOWrapper.tell(). * input_chunk could be decrefed twice in TextIOWrapper.seek() after failed Py_BuildValue(). * initvalue could leak in StringIO.__getstate__() after failed PyDict_Copy(). (cherry picked from commit fdb5a50ef34f7951c3b01eb77b1359725a9ad670) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-25862: Fix assertion failures in io.TextIOWrapper.tell(). (GH-3918)Miss Islington (bot)2018-06-291-0/+5
| | | | | (cherry picked from commit 23db935bcf258657682e66464bf8512def8af830) Co-authored-by: Zackery Spytz <zspytz@gmail.com>
* Fix Windows build of Python for latest WinSDK. (GH-6874) (GH-6952)Miss Islington (bot)2018-05-171-1/+1
| | | | | (cherry picked from commit c0ee341b29bd7d978b49272a2c0e2dcfa77404d5) Co-authored-by: Carl Meyer <carl@oddbird.net>
* bpo-31966: Fixed WindowsConsoleIO.write() for writing empty data. (GH-5754)Miss Islington (bot)2018-02-241-0/+3
| | | | | (cherry picked from commit 42c35d9c0c8175332f50fbe034a001fe52f057b9) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-32228: Reset raw_pos after unwinding the raw stream (#4858)Nitish Chandra2018-01-281-4/+10
| | | Ensure that ``truncate()`` preserves the file position (as reported by ``tell()``) after writes longer than the buffer size.
* bpo-32571: Avoid raising unneeded AttributeError and silencing it in C code ↵Serhiy Storchaka2018-01-254-64/+37
| | | | | (GH-5222) Add two new private APIs: _PyObject_LookupAttr() and _PyObject_LookupAttrId()
* bpo-31572: Get rid of PyObject_HasAttr() and _PyObject_HasAttrId() in the ↵Serhiy Storchaka2018-01-165-63/+105
| | | | _io module. (#3726)
* closes bpo-32460: ensure all non-static globals have initializers (#5061)Benjamin Peterson2017-12-311-27/+27
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* bpo-32402: io: Add missing NULL check. (GH-4971)INADA Naoki2017-12-241-0/+6
| | | | | _PyUnicode_FromId() may return NULL. Reported by coverity scan: CID 1426868, 1426867.
* bpo-15216: io: TextIOWrapper.reconfigure() accepts encoding, errors and ↵INADA Naoki2017-12-212-150/+329
| | | | newline (GH-2343)
* bpo-32240: Add the const qualifier to declarations of PyObject* array ↵Serhiy Storchaka2017-12-158-38/+38
| | | | arguments. (#4746)
* bpo-17852: Revert incorrect fix based on misunderstanding of _Py_PyAtExit() ↵Antoine Pitrou2017-12-133-54/+1
| | | | semantics (#4826)
* bpo-32186: Release the GIL during lseek and fstat (#4652)Nir Soffer2017-12-011-1/+5
| | | | | | In _io_FileIO_readall_impl(), lseek() and _Py_fstat_noraise() were called without releasing the GIL. This can cause all threads to hang for unlimited time when calling FileIO.read() and the NFS server is not accessible.
* bpo-31976: Fix race condition when flushing a file is slow. (#4331)benfogle2017-11-101-5/+9
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* Replace KB unit with KiB (#4293)Victor Stinner2017-11-082-2/+2
| | | | | | | | | | | kB (*kilo* byte) unit means 1000 bytes, whereas KiB ("kibibyte") means 1024 bytes. KB was misused: replace kB or KB with KiB when appropriate. Same change for MB and GB which become MiB and GiB. Change the output of Tools/iobench/iobench.py. Round also the size of the documentation from 5.5 MB to 5 MiB.
* bpo-25359: Add missed "goto error" after setting an exception. (#3712)Serhiy Storchaka2017-09-231-0/+1
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* bpo-17852: Maintain a list of BufferedWriter objects. Flush them on exit. ↵Neil Schemenauer2017-09-223-1/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (#3372) * Maintain a list of BufferedWriter objects. Flush them on exit. In Python 3, the buffer and the underlying file object are separate and so the order in which objects are finalized matters. This is unlike Python 2 where the file and buffer were a single object and finalization was done for both at the same time. In Python 3, if the file is finalized and closed before the buffer then the data in the buffer is lost. This change adds a doubly linked list of open file buffers. An atexit hook ensures they are flushed before proceeding with interpreter shutdown. This is addition does not remove the need to properly close files as there are other reasons why buffered data could get lost during finalization. Initial patch by Armin Rigo. * Use weakref.WeakSet instead of WeakKeyDictionary. * Simplify buffered double-linked list types. * In _flush_all_writers(), suppress errors from flush(). * Remove NEWS entry, use blurb. * Take more care when flushing file buffers from atexit. The previous implementation was not careful enough to avoid causing issues in multi-threaded cases. Check for buf->ok and buf->finalizing before actually doing the flush. Also, increase the refcnt to ensure the object does not disappear.
* bpo-30860: Consolidate stateful runtime globals. (#3397)Eric Snow2017-09-081-1/+2
| | | | | | | * group the (stateful) runtime globals into various topical structs * consolidate the topical structs under a single top-level _PyRuntimeState struct * add a check-c-globals.py script that helps identify runtime globals Other globals are excluded (see globals.txt and check-c-globals.py).
* bpo-31370: Remove support for threads-less builds (#3385)Antoine Pitrou2017-09-071-13/+0
| | | | | | * Remove Setup.config * Always define WITH_THREAD for compatibility.
* Revert "bpo-30860: Consolidate stateful runtime globals." (#3379)Eric Snow2017-09-061-1/+1
| | | Windows buildbots started failing due to include-related errors.
* bpo-30860: Consolidate stateful runtime globals. (#2594)Eric Snow2017-09-061-1/+1
| | | | | | | | | * group the (stateful) runtime globals into various topical structs * consolidate the topical structs under a single top-level _PyRuntimeState struct * add a check-c-globals.py script that helps identify runtime globals Other globals are excluded (see globals.txt and check-c-globals.py).
* Revert "bpo-17852: Maintain a list of BufferedWriter objects. Flush them on ↵Neil Schemenauer2017-09-053-49/+1
| | | | | exit. (#1908)" (#3337) This reverts commit e38d12ed34870c140016bef1e0ff10c8c3d3f213.
* bpo-17852: Maintain a list of BufferedWriter objects. Flush them on exit. ↵Neil Schemenauer2017-09-053-1/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | (#1908) * Maintain a list of BufferedWriter objects. Flush them on exit. In Python 3, the buffer and the underlying file object are separate and so the order in which objects are finalized matters. This is unlike Python 2 where the file and buffer were a single object and finalization was done for both at the same time. In Python 3, if the file is finalized and closed before the buffer then the data in the buffer is lost. This change adds a doubly linked list of open file buffers. An atexit hook ensures they are flushed before proceeding with interpreter shutdown. This is addition does not remove the need to properly close files as there are other reasons why buffered data could get lost during finalization. Initial patch by Armin Rigo. * Use weakref.WeakSet instead of WeakKeyDictionary. * Simplify buffered double-linked list types. * In _flush_all_writers(), suppress errors from flush(). * Remove NEWS entry, use blurb.
* bpo-31243: Fixed PyArg_ParseTuple failure checks. (#3171)Oren Milman2017-08-291-5/+13
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* bpo-31271: Fix an assertion failure in io.TextIOWrapper.write. (#3201)Oren Milman2017-08-251-0/+7
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* bpo-28261: fix err msgs where PyArg_ParseTuple is used to parse normal ↵Oren Milman2017-08-241-3/+20
| | | | tuples (leftovers) (#3198)
* bpo-31095: fix potential crash during GC (GH-2974)INADA Naoki2017-08-241-0/+2
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* bpo-28261: Fixed err msgs where PyArg_ParseTuple is used to parse normal ↵Oren Milman2017-08-201-1/+8
| | | | tuples. (#3119)
* bpo-29464: Rename METH_FASTCALL to METH_FASTCALL|METH_KEYWORDS and make (#1955)Serhiy Storchaka2017-07-038-146/+38
| | | | | the bare METH_FASTCALL be used for functions with positional-only parameters.
* [security] bpo-13617: Reject embedded null characters in wchar* strings. (#2302)Serhiy Storchaka2017-06-281-2/+1
| | | | | | | Based on patch by Victor Stinner. Add private C API function _PyUnicode_AsUnicode() which is similar to PyUnicode_AsUnicode(), but checks for null characters.
* bpo-30708: Check for null characters in PyUnicode_AsWideCharString(). (#2285)Serhiy Storchaka2017-06-271-8/+1
| | | | | Raise a ValueError if the second argument is NULL and the wchar_t\* string contains null characters.
* bpo-30600: Fix error messages (condition order in Argument Clinic) (#2051)Sylvain2017-06-107-92/+92
| | | | | | | | The function '_PyArg_ParseStack()' and '_PyArg_UnpackStack' were failing (with error "XXX() takes Y argument (Z given)") before the function '_PyArg_NoStackKeywords()' was called. Thus, the latter did not raise its more meaningful error : "XXX() takes no keyword arguments".
* bpo-30601: Fix a refleak in WindowsConsoleIO (#2003)Victor Stinner2017-06-081-3/+2
| | | | | Fix a reference leak in _io._WindowsConsoleIO: PyUnicode_FSDecoder() always initialize decodedname when it succeed and it doesn't clear input decodedname object.
* Fix bpo-30526: Add TextIOWrapper.reconfigure() and a ↵Antoine Pitrou2017-06-032-1/+96
| | | | | | | | | | TextIOWrapper.write_through attribute (#1922) * Fix bpo-30526: Add TextIOWrapper.reconfigure() * Apply Nick's improved wording * Update Misc/NEWS
* bpo-30544: _io._WindowsConsoleIO.write raises the wrong error when ↵Segev Finer2017-06-021-1/+1
| | | | | | | | WriteConsoleW fails (#1912) * bpo-30544: _io._WindowsConsoleIO.write raises the wrong error when WriteConsoleW fails * bpo-30544: _io._WindowsConsoleIO.write raises the wrong error when WriteConsoleW fails
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