The issue might be a corner one.
And it might have something to do with bug
https://bugzilla.opensuse.org/show_bug.cgi?id=1186649
However, It is very strange that, when the command reports an error msg, it
still returns 0.
Here comes the reproduce steps:
1. install the older openssl cli with command "zypper in 'openssl(cli)', and
the only libressl is installed.
susetest:~ # rpm -qf /usr/bin/openssl
libressl-3.3.3-1.2.x86_64
2. I tried to run "rehash" command, it reports error
susetest:~ # /usr/bin/openssl rehash /etc/openldap
openssl:Error: 'rehash' is an invalid command.
Standard commands
asn1parse ca certhash ciphers
cms crl crl2pkcs7 dgst
dh dhparam dsa dsaparam
ec ecparam enc errstr
gendh gendsa genpkey genrsa
nseq ocsp passwd pkcs12
pkcs7 pkcs8 pkey pkeyparam
pkeyutl prime rand req
rsa rsautl s_client s_server
s_time sess_id smime speed
spkac ts verify version
x509
Message Digest commands (see the `dgst' command for more details)
gost-mac md4 md5 md_gost94
ripemd160 sha1 sha224 sha256
sha384 sha512 sm3 sm3WithRSAEncryption
streebog256 streebog512 whirlpool
Cipher commands (see the `enc' command for more details)
aes-128-cbc aes-128-ecb aes-192-cbc aes-192-ecb
aes-256-cbc aes-256-ecb base64 bf
bf-cbc bf-cfb bf-ecb bf-ofb
camellia-128-cbc camellia-128-ecb camellia-192-cbc camellia-192-ecb
camellia-256-cbc camellia-256-ecb cast cast-cbc
cast5-cbc cast5-cfb cast5-ecb cast5-ofb
chacha des des-cbc des-cfb
des-ecb des-ede des-ede-cbc des-ede-cfb
des-ede-ofb des-ede3 des-ede3-cbc des-ede3-cfb
des-ede3-ofb des-ofb des3 desx
idea idea-cbc idea-cfb idea-ecb
idea-ofb rc2 rc2-40-cbc rc2-64-cbc
rc2-cbc rc2-cfb rc2-ecb rc2-ofb
rc4 rc4-40 sm4 sm4-cbc
sm4-cfb sm4-ecb sm4-ofb
However, the return code is 0 (IMO, it should return non-zero code)
susetest:~ # echo $?
0