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From bash manpage, FUNCNAME exists only inside functions. When in debug mode, make sure to use an empty default value as FUNCNAME[0] when outside of functions. With bash4 this wasn't an issue, but is with bash5 with hardening option 'set -u' used, as shown in the example below: Incorrect: $ bash -u -c 'echo -n ${FUNCNAME[0]}' bash: line 1: FUNCNAME[0]: unbound variable $ Correct: $ bash -u -c 'echo -n ${FUNCNAME[0]-}' $ This hardening enables sourcing dracut-lib.sh from external utilities executing in the initramfs such as clevis-luks-askpass, which uses hardening option 'set -u' internally. (see Clevis PR https://github.com/latchset/clevis/pull/340) Signed-off-by: Renaud Métrich <rmetrich@redhat.com>master
Renaud Métrich
2 years ago
committed by
Jóhann B. Guðmundsson
2 changed files with 2 additions and 2 deletions
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