@@ -16,9 +16,11 @@ void tty_reset(tty_t *tty){

 void tty_init(tty_t *tty, const char *tty_filename){

 	tty->fdin = open(tty_filename, O_RDONLY);

 	tty->fout = fopen(tty_filename, "w");

-	setvbuf(tty->fout, NULL, _IOFBF, 4096);

+	if(setvbuf(tty->fout, NULL, _IOFBF, 4096))

+		perror("setvbuf");

-	tcgetattr(tty->fdin, &tty->original_termios);

+	if(tcgetattr(tty->fdin, &tty->original_termios))

+		perror("tcgetattr");

 	struct termios new_termios = tty->original_termios;

@@ -29,7 +31,8 @@ void tty_init(tty_t *tty, const char *tty_filename){

 	 */

 	new_termios.c_lflag &= ~(ICANON | ECHO);

-	tcsetattr(tty->fdin, TCSANOW, &new_termios);

+	if(tcsetattr(tty->fdin, TCSANOW, &new_termios))

+		perror("tcsetattr");

 	tty_getwinsz(tty);