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Fix small race window when creating portal socket.

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Obtained from: OpenBSD
This commit is contained in:
imp 1997-03-24 05:53:12 +00:00
parent e5d10bdc2e
commit 3c8c5177a0
3 changed files with 12 additions and 3 deletions
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5
sbin/mount_portal/mount_portal.c
View File

@ -45,7 +45,7 @@ char copyright[] =
static char sccsid[] = "@(#)mount_portal.c 8.6 (Berkeley) 4/26/95";
*/
static const char rcsid[] =
"$Id: mount_portal.c,v 1.9 1997/02/22 14:32:53 peter Exp $";
"$Id: mount_portal.c,v 1.10 1997/03/11 12:34:58 peter Exp $";
#endif /* not lint */
#include <sys/param.h>
@ -110,6 +110,7 @@ main(argc, argv)
int mntflags = 0;
char tag[32];
struct vfsconf vfc;
mode_t um;
qelem q;
int rc;
@ -159,11 +160,13 @@ main(argc, argv)
if (so < 0) {
err(EX_OSERR, "socket");
}
um = umask(077);
(void) unlink(un.sun_path);
if (bind(so, (struct sockaddr *) &un, sizeof(un)) < 0)
err(1, NULL);
(void) unlink(un.sun_path);
(void) umask(um);
(void) listen(so, 5);

5
sbin/mount_portalfs/mount_portalfs.c
View File

@ -45,7 +45,7 @@ char copyright[] =
static char sccsid[] = "@(#)mount_portal.c 8.6 (Berkeley) 4/26/95";
*/
static const char rcsid[] =
"$Id: mount_portal.c,v 1.9 1997/02/22 14:32:53 peter Exp $";
"$Id: mount_portal.c,v 1.10 1997/03/11 12:34:58 peter Exp $";
#endif /* not lint */
#include <sys/param.h>
@ -110,6 +110,7 @@ main(argc, argv)
int mntflags = 0;
char tag[32];
struct vfsconf vfc;
mode_t um;
qelem q;
int rc;
@ -159,11 +160,13 @@ main(argc, argv)
if (so < 0) {
err(EX_OSERR, "socket");
}
um = umask(077);
(void) unlink(un.sun_path);
if (bind(so, (struct sockaddr *) &un, sizeof(un)) < 0)
err(1, NULL);
(void) unlink(un.sun_path);
(void) umask(um);
(void) listen(so, 5);

5
usr.sbin/mount_portalfs/mount_portalfs.c
View File

@ -45,7 +45,7 @@ char copyright[] =
static char sccsid[] = "@(#)mount_portal.c 8.6 (Berkeley) 4/26/95";
*/
static const char rcsid[] =
"$Id: mount_portal.c,v 1.9 1997/02/22 14:32:53 peter Exp $";
"$Id: mount_portal.c,v 1.10 1997/03/11 12:34:58 peter Exp $";
#endif /* not lint */
#include <sys/param.h>
@ -110,6 +110,7 @@ main(argc, argv)
int mntflags = 0;
char tag[32];
struct vfsconf vfc;
mode_t um;
qelem q;
int rc;
@ -159,11 +160,13 @@ main(argc, argv)
if (so < 0) {
err(EX_OSERR, "socket");
}
um = umask(077);
(void) unlink(un.sun_path);
if (bind(so, (struct sockaddr *) &un, sizeof(un)) < 0)
err(1, NULL);
(void) unlink(un.sun_path);
(void) umask(um);
(void) listen(so, 5);