ret = socketpair(PF_UNIX, SOCK_DGRAM, 0, afs_server_socket);
if (ret < 0)
exit(EXIT_FAILURE);
afs_socket_cookie = para_random((uint32_t)-1);
ret = socketpair(PF_UNIX, SOCK_DGRAM, 0, afs_server_socket);
if (ret < 0)
exit(EXIT_FAILURE);
afs_socket_cookie = para_random((uint32_t)-1);