Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Make sure repeated TIOCSCTTY doesn't corrupt session hold count. 

Fixes kern/17382 by David Laight.
This commit is contained in:
jdolecek 2002-07-21 20:43:53 +00:00
parent f7a70aa74c
commit e462e316fb
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sys/kern/tty.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: tty.c,v 1.138 2002/05/02 13:38:57 enami Exp $ */
/* $NetBSD: tty.c,v 1.139 2002/07/21 20:43:53 jdolecek Exp $ */
/*-
* Copyright (c) 1982, 1986, 1990, 1991, 1993
@ -41,7 +41,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: tty.c,v 1.138 2002/05/02 13:38:57 enami Exp $");
__KERNEL_RCSID(0, "$NetBSD: tty.c,v 1.139 2002/07/21 20:43:53 jdolecek Exp $");
#include "opt_uconsole.h"
@ -987,6 +987,10 @@ ttioctl(struct tty *tp, u_long cmd, caddr_t data, int flag, struct proc *p)
((p->p_session->s_ttyvp || tp->t_session) &&
(tp->t_session != p->p_session)))
return (EPERM);
if (tp->t_session)
SESSRELE(tp->t_session);
SESSHOLD(p->p_session);
tp->t_session = p->p_session;
tp->t_pgrp = p->p_pgrp;