/*
* Ioctls for all tty devices.
*/
int tty_ioctl(struct tty *tp, u_long cmd, void *data)
{
struct tty_queue *qp;
switch (cmd) {
case TCGETS:
if (copyout(&tp->t_termios, data,
sizeof(struct termios)))
return -EFAULT;
break;
case TCSETSW:
case TCSETSF:
tty_wait(tp);
if (cmd == TCSETSF)
tty_flush(tp, FREAD);
/* FALLTHROUGH */
case TCSETS:
if (copyin(data, &tp->t_termios,
sizeof(struct termios)))
return -EFAULT;
break;
case TIOCSPGRP: /* set pgrp of tty */
if (copyin(data, &tp->t_pgid, sizeof(pid_t)))
return -EFAULT;
break;
case TIOCGPGRP:
if (copyout(&tp->t_pgid, data, sizeof(pid_t)))
return -EFAULT;
break;
#ifdef TIOCFLUSH
case TIOCFLUSH: {
int flags;
if (copyin(data, &flags, sizeof(flags)))
return -EFAULT;
if (flags == 0)
flags = FREAD | FWRITE;
else
flags &= FREAD | FWRITE;
tty_flush(tp, flags);
break;
}
#endif
#ifdef TIOCSTART
case TIOCSTART:
if (tp->t_state & TS_TTSTOP) {
tp->t_state &= ~TS_TTSTOP;
tty_start(tp);
}
break;
#endif
#ifdef TIOCSTOP
case TIOCSTOP:
if (!(tp->t_state & TS_TTSTOP)) {
tp->t_state |= TS_TTSTOP;
}
break;
#endif
case TIOCGWINSZ:
if (copyout(&tp->t_winsize, data,
sizeof(struct winsize)))
return -EFAULT;
break;
case TIOCSWINSZ:
if (copyin(data, &tp->t_winsize,
sizeof(struct winsize)))
return -EFAULT;
break;
#ifdef TIOCSETSIGT
case TIOCSETSIGT: /* Prex */
if (copyin(data, &tp->t_pid, sizeof(pid_t)))
return -EFAULT;
break;
#endif
case TIOCINQ:
qp = (tp->t_lflag & ICANON) ? &tp->t_canq : &tp->t_rawq;
if (copyout(&qp->tq_count, data, sizeof(int)))
return -EFAULT;
break;
case TIOCOUTQ:
if (copyout(&tp->t_outq.tq_count, data, sizeof(int)))
return -EFAULT;
break;
}
return 0;
}
/*
* Ioctls for all tty devices.
*/
static int
tty_ioctl(file_t file, u_long cmd, void *data)
{
struct tty *tp = file->priv;
int flags;
struct tty_queue *qp;
switch (cmd) {
case TIOCGETA:
if (umem_copyout(&tp->t_termios, data,
sizeof(struct termios)))
return EFAULT;
break;
case TIOCSETAW:
case TIOCSETAF:
tty_wait(tp);
if (cmd == TIOCSETAF)
tty_flush(tp, FREAD);
/* FALLTHROUGH */
case TIOCSETA:
if (umem_copyin(data, &tp->t_termios,
sizeof(struct termios)))
return EFAULT;
break;
case TIOCSPGRP: /* set pgrp of tty */
if (umem_copyin(data, &tp->t_pgid, sizeof(pid_t)))
return EFAULT;
break;
case TIOCGPGRP:
if (umem_copyout(&tp->t_pgid, data, sizeof(pid_t)))
return EFAULT;
break;
case TIOCFLUSH:
if (umem_copyin(data, &flags, sizeof(flags)))
return EFAULT;
break;
if (flags == 0)
flags = FREAD | FWRITE;
else
flags &= FREAD | FWRITE;
tty_flush(tp, flags);
break;
case TIOCSTART:
if (tp->t_state & TS_TTSTOP) {
tp->t_state &= ~TS_TTSTOP;
tty_start(tp);
}
break;
case TIOCSTOP:
if (!(tp->t_state & TS_TTSTOP)) {
tp->t_state |= TS_TTSTOP;
}
break;
case TIOCGWINSZ:
if (umem_copyout(&tp->t_winsize, data,
sizeof(struct winsize)))
return EFAULT;
break;
case TIOCSWINSZ:
if (umem_copyin(&tp->t_winsize, data,
sizeof(struct winsize)))
return EFAULT;
break;
case TIOCSETSIGT:
if (umem_copyin(data, &sig_task, sizeof(task_t)))
return EFAULT;
break;
case TIOCINQ:
qp = (tp->t_lflag & ICANON) ? &tp->t_canq : &tp->t_rawq;
if (umem_copyout(&qp->tq_count, data, sizeof(int)))
return EFAULT;
break;
case TIOCOUTQ:
if (umem_copyout(&tp->t_outq.tq_count, data, sizeof(int)))
return EFAULT;
break;
}
return 0;
}
