Restore -a functionality to the version command

Signed-off-by: Tom Eastep <teastep@shorewall.net>

Shorewall/changelog.txt

@@ -8,6 +8,8 @@ Changes in Shorewall 4.4.10
 
 4)  Add SAFESTOP option to /etc/default/shorewall*
 
+5)  Restore -a functionality to the version command.
+
 Changes in Shorewall 4.4.9
 
 1)  Auto-detection of bridges.

Shorewall/releasenotes.txt

@@ -446,6 +446,9 @@ V I.  P R O B L E M S  C O R R E C T E D  A N D  N E W   F E A T U R E S
     Use of tunN in the nat and netmap files also produced invalid
     iptables-restore input.
 
+2)  '/sbin/shorewall version -a' now shows the versions of all installed
+    Shorewall packages.
+
 ----------------------------------------------------------------------------
                 N E W   F E A T U R E S   I N   4 . 4 . 9
 ----------------------------------------------------------------------------

Shorewall/shorewall

@@ -1508,6 +1508,7 @@ version_command() {
     finished=0
     local all
     all=
+    local product
 
     while [ $finished -eq 0 -a $# -gt 0 ]; do
 	option=$1
@@ -1540,7 +1541,22 @@ version_command() {
 
     [ $# -gt 0 ] && usage 1
 
-    echo $SHOREWALL_VERSION
+    if [ -n "$all" ]; then
+	for product in shorewall shorewall6 shorewall-lite shorewall6-lite shorewall-init; do
+	    if [ -f /usr/share/$product/version ]; then
+		case $product in
+		    shorewall)
+			echo $SHOREWALL_VERSION
+			;;
+		    *)
+			echo "$product: $(cat /usr/share/$product/version)"
+			;;
+		esac
+	    fi
+	done
+    else
+	echo $SHOREWALL_VERSION
+    fi
 
 }