netdev - Re: [PATCH] ip: set the close-on-exec flag for descriptors

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Message-ID: <20130604091150.48f3b1ca@nehalam.linuxnetplumber.net>
Date:	Tue, 4 Jun 2013 09:11:50 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Andrey Vagin <avagin@...nvz.org>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] ip: set the close-on-exec flag for descriptors

On Tue,  4 Jun 2013 12:01:14 +0400
Andrey Vagin <avagin@...nvz.org> wrote:

> Otherwise a program executed by "ip netns exec" has two extra
> descriptors.
> 
> $ ip netns exec test /bin/bash
> $ lsof -p $$
> ...
> bash    817 root    0u   CHR  136,0       0t0          3 /dev/pts/0
> bash    817 root    1u   CHR  136,0       0t0          3 /dev/pts/0
> bash    817 root    2u   CHR  136,0       0t0          3 /dev/pts/0
> bash    817 root    3u  sock    0,6       0t0      13386 protocol: NETLINK
> bash    817 root    4r   REG    0,3         0 4026532155 net
> bash    817 root  255u   CHR  136,0       0t0          3 /dev/pts/0

Applied
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