From: David Miller <davem@davemloft.net>
To: shemminger@osdl.org
Cc: netdev@vger.kernel.org
Subject: Re: [Bug 7635] New: ioctl(fd,TCSBRK,1) on socket yields EFAULT, expected EINVAL/ENOTTY
Date: Fri, 08 Dec 2006 13:36:33 -0800 (PST) [thread overview]
Message-ID: <20061208.133633.77400985.davem@davemloft.net> (raw)
In-Reply-To: <20061208095055.38fef768@localhost>
From: Stephen Hemminger <shemminger@osdl.org>
Date: Fri, 8 Dec 2006 09:50:55 -0800
> ioctl(TCSBRK,1) errno
> pty 0
> pipe 22/EINVAL
> /dev/null 25/ENOTTY
> reg_file 25/ENOTTY
> socket 14/EFAULT
If you call a TTY ioctl on a socket, it might not work, don't
you think?
ioctl values are numbered in the namespace of the object they are
called upon, so an ioctl of value X can mean something different for a
TTY than it does for socket.
You're passing a garbage pointer to whatever socket ioctl happens
to be aliased to the same value as TCSBRK on your platform.
next prev parent reply other threads:[~2006-12-08 21:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-08 17:50 Fw: [Bug 7635] New: ioctl(fd,TCSBRK,1) on socket yields EFAULT, expected EINVAL/ENOTTY Stephen Hemminger
2006-12-08 21:36 ` David Miller [this message]
2006-12-08 22:00 ` Stephen Hemminger
2006-12-09 0:33 ` David Miller
2006-12-09 8:06 ` Eric Dumazet
2006-12-09 9:05 ` David Miller
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