add test case(s) to notice 'openvpn --show-cipher' crashing

Signed-off-by: Gert Doering <gert@greenie.muc.de>
Acked-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <20211210165543.77587-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg23381.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>

diff --git a/tests/t_lpback.sh b/tests/t_lpback.sh
index 6206899d3b39c9b201cea5056006c9e202cc509d..67952994245304801b3aa5658901fa070769ebea 100755 (executable)
--- a/tests/t_lpback.sh
+++ b/tests/t_lpback.sh
@@ -35,13 +35,18 @@ CIPHERS=$(${top_builddir}/src/openvpn/openvpn --show-ciphers | \
 # GD, 2014-07-06 do not test RC5-* either (fails on NetBSD w/o libcrypto_rc5)
 CIPHERS=$(echo "$CIPHERS" | egrep -v '^(DES-EDE3-CFB1|DES-CFB1|RC5-)' )
 
+e=0
+if [ -z "$CIPHERS" ] ; then
+    echo "'openvpn --show-ciphers' FAILED (empty list)"
+    e=1
+fi
+
 # Also test cipher 'none'
 CIPHERS=${CIPHERS}$(printf "\nnone")
 
 "${top_builddir}/src/openvpn/openvpn" --genkey secret key.$$
 set +e
 
-e=0
 for cipher in ${CIPHERS}
 do
     printf "Testing cipher ${cipher}... "