SO_COOKIE
case SO_COOKIE:
res = getsockopt(s_send, SOL_SOCKET, SO_COOKIE, &cookie, &cookie_len);
ret = getsockopt(fd, SOL_SOCKET, SO_COOKIE, &cookie, &cookie_len);
if (CHECK(getsockopt(fd, SOL_SOCKET, SO_COOKIE, &cookie, &cookie_len) < 0,
err = getsockopt(sk_fd, SOL_SOCKET, SO_COOKIE, &skel->bss->cookie, &optlen);
if (!ASSERT_OK(getsockopt(fd, SOL_SOCKET, SO_COOKIE, &cookie,
xgetsockopt(s, SOL_SOCKET, SO_COOKIE, &cookie, &len);
err = getsockopt(fd64, SOL_SOCKET, SO_COOKIE, &sk_cookie,
ret = getsockopt(self->unix_fd, SOL_SOCKET, SO_COOKIE, &self->cookie, &optlen);