selftests/nolibc: Check that snprintf() doesn't write beyond the buffer end

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Fill buf[] with known data and check the vsnprintf() doesn't write
beyond the specified buffer length.

Would have picked up the bug in field padding.

Signed-off-by: David Laight <david.laight.linux@gmail.com>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://patch.msgid.link/20260302101815.3043-7-david.laight.linux@gmail.com
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>

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David Laight 2026-03-02 10:17:58 +00:00 • committed by Thomas Weißschuh

parent f36e1ec61a

commit 4ea2dedd50

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tools/testing/selftests/nolibc/nolibc-test.c

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