On Fri, 2023-11-10 at 15:21 -0500, Stefan Berger wrote:
> Address issues detected by shellcheck SC2003:
> expr is antiquated. Consider rewriting this using $((..)), ${} or [[ ]].
>
> The following statement in portable_signatures.test causes the issue:
>
> expr index "$TST_LIST" "check_evm_revalidate"
>
> The man page for expr states:
>
> index STRING CHARS
> index in STRING where any CHARS is found, or 0
>
> The intention is certainly not to find an index of any of the characters
> in "check_evm_revalidate" in $TST_LIST but to find the word
> "check_evm_revalidate" in $TST_LIST. Therefore, use grep -w to determine
> whether the word is there.
>
> Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>
> Cc: Roberto Sassu <roberto.sassu@xxxxxxxxxx>
Reviewed-by: Roberto Sassu <roberto.sassu@xxxxxxxxxx>
Thanks
Roberto
> ---
> tests/Makefile.am | 2 --
> tests/portable_signatures.test | 2 +-
> 2 files changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/tests/Makefile.am b/tests/Makefile.am
> index a5ee424..18b134c 100644
> --- a/tests/Makefile.am
> +++ b/tests/Makefile.am
> @@ -27,8 +27,6 @@ distclean: distclean-keys
>
> shellcheck:
> shellcheck \
> - -i SC2086,SC2181,SC2046,SC2320,SC2317,SC2034,SC2164,SC2166 \
> - -i SC2294,SC2206,SC2196,SC2043,SC2295 \
> functions.sh gen-keys.sh install-fsverity.sh \
> install-mount-idmapped.sh install-openssl3.sh \
> install-swtpm.sh install-tss.sh softhsm_setup \
> diff --git a/tests/portable_signatures.test b/tests/portable_signatures.test
> index 5251211..c6e2d99 100755
> --- a/tests/portable_signatures.test
> +++ b/tests/portable_signatures.test
> @@ -1090,7 +1090,7 @@ if [ $((evm_value & EVM_INIT_X509)) -ne "$EVM_INIT_X509" ] && [ "$TST_EVM_CHANGE
> echo "$EVM_INIT_X509" > /sys/kernel/security/evm 2> /dev/null
> fi
>
> -if [ "$(expr index "$TST_LIST" "check_evm_revalidate")" -gt 0 ] && [ "$TST_EVM_CHANGE_MODE" -eq 1 ]; then
> +if echo "$TST_LIST" | grep -q -w check_evm_revalidate && [ "$TST_EVM_CHANGE_MODE" -eq 1 ]; then
> echo "$EVM_ALLOW_METADATA_WRITES" > /sys/kernel/security/evm 2> /dev/null
> fi
>
