int openpty(int* amaster, int* aslave, char* name, struct termios* termp, struct winsize* winp);
int login_tty(int fd);
int forkpty(int* amaster, char* name, struct termios* termp, struct winsize* winp);
int openpty(int* amaster, int* aslave, char* name, struct termios* termp, struct winsize* winp);
int login_tty(int fd);
int forkpty(int* amaster, char* name, struct termios* termp, struct winsize* winp);