[Bug 294881] test failures with FORTIFY_SOURCE=2

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 10 Jun 2026 04:01:30 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294881

--- Comment #7 from commit-hook@FreeBSD.org ---
A commit in branch stable/15 references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=52e2e6bfc31a54e53109978434bc8c43005aa367

commit 52e2e6bfc31a54e53109978434bc8c43005aa367
Author:     Kyle Evans <kevans@FreeBSD.org>
AuthorDate: 2026-05-01 02:57:51 +0000
Commit:     Kyle Evans <kevans@FreeBSD.org>
CommitDate: 2026-06-10 04:00:35 +0000

    ssp: fix our gets_s implementation under _FORTIFY_SOURCE

    Annex K specifies an interface for handling constraint violations from
    gets_s, but we previously broke this for some classes of get_s misuse.

    Provide a more nuanced version that tries to dodge errors that would
    trigger a constraint handler while still providing value.  Notably, we
    don't want to trigger a failure unless the passed-in length reasonably
    fits within an RSIZE_MAX, because gets_s will immediately call larger
    lengths bogus and fail.

    PR:             294881
    Reviewed by:    markj

    (cherry picked from commit d98f4f0698ef0c5178882c544b4c38542d4780f0)

 include/ssp/stdio.h | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

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