HardenedBSD/ref.obs_zeroes at 3ea37deb6c92f24b6eb71d296cf45bc649016fa9 - HardenedBSD - LAYLO Code

hardenedbsd/HardenedBSD

mirror of https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git synced 2024-12-21 08:24:10 +01:00

Thomas Quinot cd1832fe92 Reorganize the handling all-zeroes terminal block in sparse mode

The intent of the previous code in that case was to force
an explicit write, but the implementation was incorrect, and
as a result the write was never performed. This new implementation
instead uses ftruncate(2) to extend the file with a trailing hole.

Also introduce regression tests for these cases.

PR: 189284
(original PR whose fix introduced this bug)

PR: 207092

Differential Revision:	D5248
Reviewed by:	sobomax,kib
MFC after:	2 weeks

2016-02-18 08:44:16 +00:00

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