Note that the man page for dhclient-script says:
The exit status of dhclient-script will be passed to dhclient-exit-hooks
in the exit_sta‐
tus shell variable, and will always be zero if the script succeeded at
the task for which
it was invoked. The rest of the environment as described previously
for dhclient-enter-
hooks is also present. The /etc/dhcp/dhclient-exit-hooks and
/etc/dhcp/dhclient-exit-
hooks.d/* scripts can modify the value of exit_status to change the
exit status of
dhclient-script.
This seems to be in conflict with the implemented fix of setting
exit_status=0 before calling the hooks. If the man page is correct, each
script in turn should have the chance to update exit_status, and the
value after calling the final script is the one to use for return.
Arne
