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| author | Johannes Schindelin <johannes.schindelin@gmx.de> | 2026-05-08 08:16:40 +0000 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2026-05-09 11:25:31 +0900 |
| commit | d05d6669778fa7dbd72f37c3ad9e4024ca8693d1 (patch) | |
| tree | 1814d1346bdd2740055db9125386801ddd1cb2da /git-commit-script | |
| parent | f2063855fb50217f3720e868d799ed6cb3d0369f (diff) | |
git-zlib: handle data streams larger than 4GB
On Windows, zlib's `uLong` type is 32-bit even on 64-bit systems. When
processing data streams larger than 4GB, the `total_in` and `total_out`
fields in zlib's `z_stream` structure wrap around, which caused the
sanity checks in `zlib_post_call()` to trigger `BUG()` assertions.
The git_zstream wrapper now tracks its own 64-bit totals rather than
copying them from zlib. The sanity checks compare only the low bits,
using `maximum_unsigned_value_of_type(uLong)` to mask appropriately for
the platform's `uLong` size.
This is based on work by LordKiRon in git-for-windows#6076.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'git-commit-script')
0 files changed, 0 insertions, 0 deletions