osborners

SOCK_IO_NONBLOCK is not a socket flag option for `socket()`, as used here in loopback.c: https://github.com/Wiznet/io6Library/blob/a52bd527491b8c7e1bcfdd6f54eb00fdb7a44c9b/Application/loopback/loopback.c#L141 It should be SF_IO_NONBLOCK. However, the change introduced here means that only SOCK_IO_NONBLOCK will set...