diff options
| -rw-r--r-- | sys/kern/tty_pty.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/kern/tty_pty.c b/sys/kern/tty_pty.c index 539ee0b..14269c1 100644 --- a/sys/kern/tty_pty.c +++ b/sys/kern/tty_pty.c @@ -118,6 +118,7 @@ struct pt_ioctl { u_char pt_ucntl; struct tty pt_tty; dev_t devs, devc; + struct prison *pt_prison; }; #define PF_PKT 0x08 /* packet mode */ @@ -170,6 +171,7 @@ ptsopen(dev, flag, devtype, p) int error; int minr; dev_t nextdev; + struct pt_ioctl *pti; /* * XXX: Gross hack for DEVFS: @@ -187,6 +189,7 @@ ptsopen(dev, flag, devtype, p) ptyinit(minor(dev)); if (!dev->si_drv1) return(ENXIO); + pti = dev->si_drv1; tp = dev->si_tty; if ((tp->t_state & TS_ISOPEN) == 0) { ttychars(tp); /* Set up default chars */ @@ -195,8 +198,11 @@ ptsopen(dev, flag, devtype, p) tp->t_lflag = TTYDEF_LFLAG; tp->t_cflag = TTYDEF_CFLAG; tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; - } else if (tp->t_state & TS_XCLUDE && suser(p)) + } else if (tp->t_state & TS_XCLUDE && suser(p)) { return (EBUSY); + } else if (pti->pt_prison != p->p_prison) { + return (EBUSY); + } if (tp->t_oproc) /* Ctrlr still around. */ (void)(*linesw[tp->t_line].l_modem)(tp, 1); while ((tp->t_state & TS_CARR_ON) == 0) { @@ -354,6 +360,7 @@ ptcopen(dev, flag, devtype, p) (void)(*linesw[tp->t_line].l_modem)(tp, 1); tp->t_lflag &= ~EXTPROC; pti = dev->si_drv1; + pti->pt_prison = p->p_prison; pti->pt_flags = 0; pti->pt_send = 0; pti->pt_ucntl = 0; |
