int process_pty(int master, sigset_t *mask, pid_t kill_pid, int signo) {
struct termios saved_stdin_attr, raw_stdin_attr;
struct termios saved_stdout_attr, raw_stdout_attr;
int process_pty(int master, sigset_t *mask, pid_t kill_pid, int signo) {
struct termios saved_stdin_attr, raw_stdin_attr;
struct termios saved_stdout_attr, raw_stdout_attr;