Re: [Xen-devel] [PATCH OSSTEST v2 11/20] Osstest/PDU: Add eth008.pm method to control the ARM rack PDU

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2014-10-29 at 16:27 +0000, Ian Jackson wrote:
> Ian Campbell writes ("[PATCH OSSTEST v2 11/20] Osstest/PDU: Add eth008.pm 
> method to control the ARM rack PDU"):
> > This controls the eth008 relay board: 
> > http://www.robot-electronics.co.uk/htm/eth008tech.htm
> > 
> > Due to the use of the CGI interface this requires firmware version 4+.
> ...
> > +    # Create a netrc file to avoid putting l/p on command line
> > +    my ($passfh, $passfilename) = tempfile( UNLINK => 1 );
> > +    print $passfh "machine $mo->{PDU} login $mo->{User} password 
> > $mo->{Pass}\n";
> 
> Where does tempfile(UNLINK=>1) create its files

I had assumed it was in /tmp (perhaps with handling for $TMP and
synonyms). TFD doesn't really say anything about it though.

> and what deletes it if the script crashes ?

Nothing (it just does it when the thing goes out of scope).

>   It might be better to use something in tmp/
> (presumably with the host name in the filename).  See for example
> ts-host-install which uses tmp/t.<host>.initrd.

Good idea.

> Or of course you could use LWP::UserAgent.

I'll check that out.

Ian/


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