my_arc4random_r
(my_arc4random_r() % 2) == 0 ? "www." : "",
randwords[my_arc4random_r() % nrandwords],
(my_arc4random_r() % 3) == 0 ?
randwords[my_arc4random_r() % nrandwords] : "",
suffixes[my_arc4random_r() % nsuffixes]) == -1)
rndsleep = (double)my_arc4random_r() / 4294967296.0 * max_sleep_sec;