Some devices do not have an address, which prints an error when reading
it.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
# Try to find out if this INTERFACE is a slave of a zone
local slave
for slave in $(get_value "${zone}_SLAVES"); do
-
- #Compare if the mac address matches or if the name matches
- if ([ "$(</sys/class/net/${INTERFACE}/address)" = "${slave}" ] || [ "${INTERFACE}" = "${slave}" ]); then
+ # Compare if the mac address matches or if the name matches
+ if [ -r "/sys/class/net/${INTERFACE}/address" -a "$(</sys/class/net/${INTERFACE}/address)" = "${slave}" ] || [ "${INTERFACE}" = "${slave}" ]; then
echo "${zone}"
return 0
fi