pty: handle tty ioctl

kernel-src/include/kernel/tty.h

@@ -34,5 +34,6 @@ void tty_init();
 tty_t *tty_create(char *name, ttydevicewritefn_t writefn, ttyinactivefn_t inactivefn, void *internal);
 void tty_process(tty_t *tty, char c);
 void tty_unregister(tty_t *tty);
+int tty_ioctl(tty_t *tty, unsigned long req, void *arg, int *result);
 
 #endif

kernel-src/include/termios.h

@@ -22,6 +22,7 @@ typedef unsigned int tcflag_t;
 #define TCGETS 0x5401
 #define TCSETS 0x5402
 #define TIOCGWINSZ 0x5413
+#define TIOCSWINSZ 0x5414
 
 typedef struct {
     unsigned short ws_row;