arg_or_targ_relaxed
uint32_t arg1 = arg_or_targ_relaxed(arg, action, IPFW_ARG_MAX);
uint32_t arg1 = arg_or_targ_relaxed(arg, action, IPFW_ARG_MAX);
arg_or_targ_relaxed(av[0], *(av - 1), IPFW_DEFAULT_RULE);
arg_or_targ_relaxed(av[0], *(av - 1), IPFW_DEFAULT_RULE);