RL
RL(sysctlbyname(TC_CHOICE, ctrbuf, &ctrbufsiz, NULL, 0));
RL(sysctlbyname(TC_HARDWARE, NULL, 0, save, strlen(save)));
RL(done = read(pp[0], f, 128 * 1024));
RL(sigprocmask(SIG_BLOCK, &asigset, &osigset));
RL(sigprocmask(SIG_SETMASK, &osigset, NULL));
RL(close(pp[0]));
RL(close(pp[1]));
RL(waitpid(pid, &st, 0));
RL(sigemptyset(&emptysigset));
RL(sigemptyset(&asigset));
RL(sigaddset(&asigset, SIGINFO));
RL(pipe(pp));
RL(pid = fork());
RL(close(pp[1]));
uint8_t RL;