retval=0
fi
+# stupid + simplified checking for valid hostname (according to RFC 952)
+VALIDATE=$(echo "$NEW_HOSTNAME" | tr --delete '[:alnum:]-')
+if [ -n "$VALIDATE" ] ; then
+ if [ -z "$NONINTERACTIVE" ] ; then
+ dialog --title "${PN}" \
+ --msgbox "Error: invalid characters specified in hostname: '$VALIDATE' can not be used inside hostnames." \
+ 0 0
+ exec "$0"
+ else
+ echo "Error: invalid characters specified in hostname: '$VALIDATE' can not be used inside hostnames." >&2
+ exit 1
+ fi
+fi
+
case $retval in
0)
echo "$NEW_HOSTNAME" > /etc/hostname