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08300d84 |
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12-Jun-2023 |
Xin LI <delphij@FreeBSD.org> |
expand_number: Tighten check of unit.
The current code silently ignores characters after the unit as long
the unit themselves were recognized. This commit makes expand_number(3)
to fail with EINVAL if buf did not terminate after the unit character.
Historically, the function accepts and ignores "B" as a SI unit, this
behavior is preserved and e.g. KB, MB are still accepted as aliases of
K and M, document this behavior in the manual page.
While I am there, also write a few test cases to validate the behavior.
Reviewed-by: emaste
MFC-after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D40482
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