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Don't allow i/o operations for non-root users.

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Add prototypes.
This commit is contained in:
Bruce Evans 1995-10-14 07:08:09 +00:00
parent 278b94817a
commit 21e00296ec
3 changed files with 18 additions and 6 deletions
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8
sys/dev/syscons/syscons.c
View File

@ -25,7 +25,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: syscons.c,v 1.124 1995/08/16 22:36:43 nate Exp $
* $Id: syscons.c,v 1.125 1995/09/10 21:35:12 bde Exp $
*/
#include "sc.h"
@ -116,8 +116,9 @@ static u_short mouse_or_mask[16] = {
0x0c00, 0x0c00, 0x0600, 0x0600, 0x0000, 0x0000, 0x0000, 0x0000
};
extern void none_saver(int blank);
void none_saver(int blank) { }
void (*current_saver)() = none_saver;
void (*current_saver) __P((int blank)) = none_saver;
/* OS specific stuff */
#ifdef not_yet_done
@ -839,6 +840,9 @@ scioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
return 0;
case KDENABIO: /* allow io operations */
error = suser(p->p_ucred, &p->p_acflag);
if (error != 0)
return error;
fp = (struct trapframe *)p->p_md.md_regs;
fp->tf_eflags |= PSL_IOPL;
return 0;

8
sys/i386/isa/syscons.c
View File

@ -25,7 +25,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: syscons.c,v 1.124 1995/08/16 22:36:43 nate Exp $
* $Id: syscons.c,v 1.125 1995/09/10 21:35:12 bde Exp $
*/
#include "sc.h"
@ -116,8 +116,9 @@ static u_short mouse_or_mask[16] = {
0x0c00, 0x0c00, 0x0600, 0x0600, 0x0000, 0x0000, 0x0000, 0x0000
};
extern void none_saver(int blank);
void none_saver(int blank) { }
void (*current_saver)() = none_saver;
void (*current_saver) __P((int blank)) = none_saver;
/* OS specific stuff */
#ifdef not_yet_done
@ -839,6 +840,9 @@ scioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
return 0;
case KDENABIO: /* allow io operations */
error = suser(p->p_ucred, &p->p_acflag);
if (error != 0)
return error;
fp = (struct trapframe *)p->p_md.md_regs;
fp->tf_eflags |= PSL_IOPL;
return 0;

8
sys/isa/syscons.c
View File

@ -25,7 +25,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: syscons.c,v 1.124 1995/08/16 22:36:43 nate Exp $
* $Id: syscons.c,v 1.125 1995/09/10 21:35:12 bde Exp $
*/
#include "sc.h"
@ -116,8 +116,9 @@ static u_short mouse_or_mask[16] = {
0x0c00, 0x0c00, 0x0600, 0x0600, 0x0000, 0x0000, 0x0000, 0x0000
};
extern void none_saver(int blank);
void none_saver(int blank) { }
void (*current_saver)() = none_saver;
void (*current_saver) __P((int blank)) = none_saver;
/* OS specific stuff */
#ifdef not_yet_done
@ -839,6 +840,9 @@ scioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
return 0;
case KDENABIO: /* allow io operations */
error = suser(p->p_ucred, &p->p_acflag);
if (error != 0)
return error;
fp = (struct trapframe *)p->p_md.md_regs;
fp->tf_eflags |= PSL_IOPL;
return 0;