eui64_hostton
int eui64_hostton(const char *, struct eui64 *);
if (eui64_hostton(optarg, &target) != 0 &&
if (eui64_hostton(nodestr, &eui) != 0 && eui64_aton(nodestr, &eui) != 0)
if (eui64_hostton(optarg, &target) != 0 &&