+error_exit() {
+ echo "$0: $1" >&2
+ exit 1
+}
+
+have_root() {
+ [ $(whoami) == "root" ] && return 0 || return 1
+}
+
+scsi_dev() {
+ local d=$(basename "$BASEDEV")
+ ls /sys/block/$d/device/scsi_disk | 2>/dev/null \
+ sed -e "s/^\([0-9a-f]*\):.*$/\1/"
+}
+