F_GETOWN
case F_GETOWN:
pgrp = fcntl(fd, F_GETOWN);
pgrp = fcntl(fd, F_GETOWN);
assert(fcntl(fd, F_GETOWN) == 0);
assert(fcntl(fd, F_GETOWN) == pgid);
assert(fcntl(fd, F_GETOWN) == pgid);
assert(fcntl(fd, F_GETOWN) == 0);
assert(fcntl(cli, F_GETOWN) == getpid());
assert(fcntl(cli, F_GETOWN) == 0);
case F_GETOWN: