kern/185022: ls /dev/tun<n> creates tun<n> interface

[John P Hartmann]

>Number:         185022
>Category:       kern
>Synopsis:       ls /dev/tun<n> creates tun<n> interface
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Dec 20 11:00:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     John P Hartmann
>Release:        9.1
>Organization:
Self
>Environment:
[root at fb91 ~]# uname -a
FreeBSD fb91.jphartmann.net 9.1-RELEASE-p7 FreeBSD 9.1-RELEASE-p7 #0: Mon Sep  9 21:34:37 UTC 2013     root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64

>Description:
[root at fb91 ~]# ls -l /dev/tun*
crw-------  1 uucp  dialer    0, 128 Dec 20 11:42 /dev/tun0
crw-------  1 uucp  dialer    0, 129 Dec 20 11:43 /dev/tun1
[root at fb91 ~]# ls -l /dev/tun2
crw-------  1 uucp  dialer    0, 130 Dec 20 11:45 /dev/tun2
[root at fb91 ~]# ls -l /dev/tun*
crw-------  1 uucp  dialer    0, 128 Dec 20 11:42 /dev/tun0
crw-------  1 uucp  dialer    0, 129 Dec 20 11:43 /dev/tun1
crw-------  1 uucp  dialer    0, 130 Dec 20 11:45 /dev/tun2

[root at fb91 ~]# ifconfig -l
em0 lo0 tun0 tun1 tun2

>How-To-Repeat:
Assuming there is no /dev/tun9

ls /dev/tun9

or 

stat /dev/tun9

ls /dev/tun creates the next sequential device.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: