selftests/nolibc: check vsnprintf() output buffer before the length

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Check the string matches before checking the returned length.
Only print the string once when it matches.

Makes it a lot easier to diagnose any incorrect output.

Signed-off-by: David Laight <david.laight.linux@gmail.com>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://patch.msgid.link/20260302101815.3043-5-david.laight.linux@gmail.com
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>

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David Laight 2026-03-02 10:17:56 +00:00 • committed by Thomas Weißschuh

parent b42f02da2b

commit 9aa8a4afd4

1 changed files with 9 additions and 7 deletions

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

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