full-disclosure - Re: usb_modeswitch/pppd -detach

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Date: Sun, 22 Jan 2012 02:38:57 +0000 (GMT)
From: "Larry W. Cashdollar" <larry0@...com>
To: srm <srm@...kless.org>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: usb_modeswitch/pppd -detach

Hi,

This is still a race condition since the pid can be guessed easily as well.  It's better to use mktemp /tmp/debug.XXXXXXXXXX.

-- Larry C$

On Jan 21, 2012, at 02:14 PM, srm <srm@...kless.org> wrote:

>
>
> So, the problem is definitive in the community package of archlinux.
> *sigh*. I checked version 1.2.2 from
>
> http://www.draisberghof.de/usb_modeswitch/#download
>
> It doesn't contain the '/tmp/debug' statement.
>
> However: The following version has the debug statement:
> https://www.archlinux.org/packages/community/i686/usb_modeswitch/
>
> ,grep -n '/tmp/debug' usb_modeswitch.sh
> 66: echo "symlink-name: $2" >/tmp/debug
>
>
> A possible quick fix could be to append $$:
> 66: echo "symlink-name: $2" >/tmp/debug.$$
>
> Greetings
> srm
>

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