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Re: [PATCH] bash: add socket server support


From: Piotr Grzybowski
Subject: Re: [PATCH] bash: add socket server support
Date: Wed, 13 Nov 2013 07:35:59 +0100

Hi Everyone, hi Joel,

 the idea is nice, and I can really see that it is useful, but I would
be extremely careful with introducing those kind of changes, it can be
easily interpreted as "backdoor feature", that is: from security point
of view it could be a disaster.

cheers,
pg



On Tue, Nov 12, 2013 at 10:02 PM, Joel Martin <address@hidden> wrote:
> Currently, an outbound socket connection (client) can be created using the
> syntax:
>
> exec 5<> /dev/tcp/HOST/PORT
>
> This patch implements support for accepting incoming connections (server)
> using a slightly different syntax:
>
> exec 6<> /dev/tcp/HOST/:PORT   # note the colon
>
> The listen/accept call will block until a connection is received and it
> will be bound to the redirection.
>
> Included in the patch is a small test that has an example of usage. I've
> also attach a minimal web server that leverages this functionality (pure
> bash except for a call to wc and cat).
>
> Please include me in Cc since I am not on the list.
>
> Thanks,
>
> Joel Martin (kanaka)



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