upstream: When OpenSSL is not available, skip parts of percent test

that require it. Based on github pr#368 from ren mingshuai.

OpenBSD-Regress-ID: 49a375b2cf61ccb95b52e75e2e025cd10988ebb2

regress/percent.sh

@@ -1,4 +1,4 @@
-#	$OpenBSD: percent.sh,v 1.14 2022/02/20 03:47:26 dtucker Exp $
+#	$OpenBSD: percent.sh,v 1.15 2023/01/06 12:33:33 dtucker Exp $
 #	Placed in the Public Domain.
 
 tid="percent expansions"
@@ -79,10 +79,12 @@ for i in matchexec localcommand remotecommand controlpath identityagent \
 		trial $i '%T' NONE
 	fi
 	# Matches implementation in readconf.c:ssh_connection_hash()
-	HASH=`printf "${HOSTNAME}127.0.0.1${PORT}$REMUSER" |
-	    $OPENSSL_BIN sha1 | cut -f2 -d' '`
+	if [ ! -z "${OPENSSL_BIN}" ]; then
+		HASH=`printf "${HOSTNAME}127.0.0.1${PORT}$REMUSER" |
+		    $OPENSSL_BIN sha1 | cut -f2 -d' '`
+		trial $i '%C' $HASH
+	fi
 	trial $i '%%' '%'
-	trial $i '%C' $HASH
 	trial $i '%i' $USERID
 	trial $i '%h' 127.0.0.1
 	trial $i '%L' $HOST
@@ -96,8 +98,10 @@ for i in matchexec localcommand remotecommand controlpath identityagent \
 	# containing %d for UserKnownHostsFile
 	if [ "$i" != "userknownhostsfile" ]; then
 		trial $i '%d' $HOME
-		trial $i '%%/%C/%i/%h/%d/%L/%l/%n/%p/%r/%u' \
-		    "%/$HASH/$USERID/127.0.0.1/$HOME/$HOST/$HOSTNAME/somehost/$PORT/$REMUSER/$USER"
+		if [ ! -z "${HASH}" ]; then
+			trial $i '%%/%C/%i/%h/%d/%L/%l/%n/%p/%r/%u' \
+			    "%/$HASH/$USERID/127.0.0.1/$HOME/$HOST/$HOSTNAME/somehost/$PORT/$REMUSER/$USER"
+		fi
 	fi
 done