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| author | shadchin <shadchin@yandex-team.com> | 2024-02-07 09:25:06 +0300 |
|---|---|---|
| committer | Alexander Smirnov <alex@ydb.tech> | 2024-02-09 19:18:32 +0300 |
| commit | f0785dc88eee3da0f1514f5b4cafa931571e669d (patch) | |
| tree | 44165310ad6023cd29776f9b1b4477364cd2b5bb /contrib/tools/python3/src/Modules/binascii.c | |
| parent | 2c0985fb513cb5b352324abf223bf749c6c2bd24 (diff) | |
| download | ydb-f0785dc88eee3da0f1514f5b4cafa931571e669d.tar.gz | |
Update Python 3 to 3.11.8
Diffstat (limited to 'contrib/tools/python3/src/Modules/binascii.c')
| -rw-r--r-- | contrib/tools/python3/src/Modules/binascii.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/contrib/tools/python3/src/Modules/binascii.c b/contrib/tools/python3/src/Modules/binascii.c index afe4988549..de3c2d8895 100644 --- a/contrib/tools/python3/src/Modules/binascii.c +++ b/contrib/tools/python3/src/Modules/binascii.c @@ -780,12 +780,20 @@ binascii_crc32_impl(PyObject *module, Py_buffer *data, unsigned int crc) Py_BEGIN_ALLOW_THREADS /* Avoid truncation of length for very large buffers. crc32() takes - length as an unsigned int, which may be narrower than Py_ssize_t. */ - while ((size_t)len > UINT_MAX) { - crc = crc32(crc, buf, UINT_MAX); - buf += (size_t) UINT_MAX; - len -= (size_t) UINT_MAX; + length as an unsigned int, which may be narrower than Py_ssize_t. + We further limit size due to bugs in Apple's macOS zlib. + See https://github.com/python/cpython/issues/105967 + */ +#define ZLIB_CRC_CHUNK_SIZE 0x40000000 +#if ZLIB_CRC_CHUNK_SIZE > INT_MAX +# error "unsupported less than 32-bit platform?" +#endif + while ((size_t)len > ZLIB_CRC_CHUNK_SIZE) { + crc = crc32(crc, buf, ZLIB_CRC_CHUNK_SIZE); + buf += (size_t) ZLIB_CRC_CHUNK_SIZE; + len -= (size_t) ZLIB_CRC_CHUNK_SIZE; } +#undef ZLIB_CRC_CHUNK_SIZE crc = crc32(crc, buf, (unsigned int)len); Py_END_ALLOW_THREADS } else { |