22a80629b4
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>
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|---|---|---|
| .. | ||
| dracut-dev-lib.sh | ||
| dracut-lib.sh | ||
| init.sh | ||
| initqueue.sh | ||
| loginit.sh | ||
| module-setup.sh | ||
| parse-root-opts.sh | ||
| rdsosreport.sh | ||