feature request

[Robin David Hammond]

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perhaps you can use netcat as an interim measure.

On 2011-02-08 09:41, Cyrille Lefevre wrote:
> 
> Le 08/02/2011 01:41, Iain Morgan a écrit :
>>
>> On Mon, Feb 07, 2011 at 15:56:29 -0600, Cyrille Lefevre wrote:
>>>
>>> Hi,
>>>
>>> how about to provide a simple way to forward raw file descriptors
>>> through ssh tunnels.
>>>
>>> something which may provide a way to write something like :
>>>
>>> (echo 3; read>  out3) |&
>>> exec 3<&p 4>&p
>>> echo 5>| out5
>>> exec 5<>  out5
>>> echo 1 |
>>> ssh -d 3:rd -d 4:wr -d 5:rw '
>>>     read<&3; echo $REPLY>&4
>>>     read; echo $REPLY
>>>     read<&5; echo $REPLY>&5
>>> '>  out1
>>>
>>> the expected result is 1 in out1, 3 in out3 and 5\n5 in out5.
>>>
>>> PS : hope the sample is right :-)
>>
>> What problem are you hoping to solve with this?
> 
> the ability to have more than the 3 standard file descriptors in remote
> shell scripting.
> 
> a common case I use is :
> 
> exec 9>&1
> var=$(script)
> 
> where script output its result on fd 1, error messages of fd 2 and
> informational messages on fd 9. don't ask why, it's like that.
> 
> thing impossible through ssh w/o playing w/ something to multiplex
> standard file descriptors through fd 2 using fifos, tags and loops.
> 
> https://groups.google.com/group/fr.comp.os.unix/browse_thread/thread/8acc88b475b324b6/21d2e2f1bf85c5a7?hl=fr&ie=UTF-8&q=cyrille+lefevre+PreSshFilterLog&pli=1
> 
> 
> I've tryed netpipesw/o success and even if that worked, that will
> require to have netpipes on every host which is not possible in my
> production environment.
> 
> Regards,
> 
> Cyrille Lefevre

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