#!/bin/sh initial_label=`cat /proc/self/attr/current 2>/dev/null` modified_label="test_label" echo "$modified_label" >/proc/self/attr/current 2>/dev/null new_label=`cat /proc/self/attr/current 2>/dev/null` if [ "$new_label" != "$modified_label" ]; then # restore proper label echo $initial_label >/proc/self/attr/current echo "Privileged process could not change its label" exit 1 fi echo "$initial_label" >/proc/self/attr/current 2>/dev/null exit 0