diff options
Diffstat (limited to 'sys/kern/tty_tty.c')
| -rw-r--r-- | sys/kern/tty_tty.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/sys/kern/tty_tty.c b/sys/kern/tty_tty.c index d00e79092680..30fbe19eef73 100644 --- a/sys/kern/tty_tty.c +++ b/sys/kern/tty_tty.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * from: @(#)tty_tty.c 7.15 (Berkeley) 5/28/91 - * $Id: tty_tty.c,v 1.2 1993/10/16 15:25:05 rgrimes Exp $ + * $Id: tty_tty.c,v 1.3 1993/11/25 01:33:30 wollman Exp $ */ /* @@ -49,6 +49,7 @@ #define cttyvp(p) ((p)->p_flag&SCTTY ? (p)->p_session->s_ttyvp : NULL) /*ARGSUSED*/ +int cttyopen(dev, flag, mode, p) dev_t dev; int flag, mode; @@ -69,9 +70,11 @@ cttyopen(dev, flag, mode, p) } /*ARGSUSED*/ +int cttyread(dev, uio, flag) dev_t dev; struct uio *uio; + int flag; { register struct vnode *ttyvp = cttyvp(uio->uio_procp); int error; @@ -85,9 +88,11 @@ cttyread(dev, uio, flag) } /*ARGSUSED*/ +int cttywrite(dev, uio, flag) dev_t dev; struct uio *uio; + int flag; { register struct vnode *ttyvp = cttyvp(uio->uio_procp); int error; @@ -101,6 +106,7 @@ cttywrite(dev, uio, flag) } /*ARGSUSED*/ +int cttyioctl(dev, cmd, addr, flag, p) dev_t dev; int cmd; @@ -112,7 +118,9 @@ cttyioctl(dev, cmd, addr, flag, p) if (ttyvp == NULL) return (EIO); - if (cmd == TIOCNOTTY) { + if (cmd == TIOCSCTTY) /* don't allow controlling tty to be set */ + return EINVAL; /* to controlling tty - infinite recursion */ + else if (cmd == TIOCNOTTY) { if (!SESS_LEADER(p)) { p->p_flag &= ~SCTTY; return (0); @@ -123,6 +131,7 @@ cttyioctl(dev, cmd, addr, flag, p) } /*ARGSUSED*/ +int cttyselect(dev, flag, p) dev_t dev; int flag; |