[erlang-patches] Patch to fix ssh library

Niclas Eklund <>
Fri Nov 20 09:41:30 CET 2009


Hello!

R13B03 will be released on Wednesday. Since SSH-1.1.7 contain two other 
important fixes you should upgrade to that version. Some of the channel 
modules has been changed which is why I suspect that your second patch 
cannot be applied straight away. It would be great if you could take a 
look at the new version, alter the patch if so required and send it to me 
so I can investigate it.

/Niclas @ Erlang/OTP

On Thu, 19 Nov 2009, Kris Rasmussen wrote:

> Hi Niclas,
>
> I'm glad to hear that. Is there somewhere I can look to see the SSH-1.1.7
> code?
>
> I've also made a patch to enable customizing the way SSH keys are looked up
> with a callback module and am currently looking into giving ssh channel
> modules more control over the SSH window size. I'd like to know if some of
> this work is already being done.
>
> Thanks!
>
> Kris
>
> On Thu, Nov 19, 2009 at 12:44 AM, Niclas Eklund <>wrote:
>
>>
>> Hello!
>>
>> Thanks for the patch! This issue has already been solved in a slightly
>> different way in SSH-1.1.7, which will be included in R13B03.
>>
>> Best regards,
>>
>> /Niclas @ Erlang/OTP
>>
>>
>> On Wed, 18 Nov 2009, Kris Rasmussen wrote:
>>
>>  I was noticing that when receiving large amounts of data the erlang SSH
>>> library would often freeze and no longer receive any data from the server
>>> I
>>> was connecting to. After a bit of work, I tracked this down to an
>>> "infinite"
>>> loop in ssh_connection_handler.erl. The problem occurs when the first
>>> block
>>> has not yet been decoded and a call to next_packet is made. This would
>>> trigger the process to send itself a socket-receive message but it's
>>> possible that there isn't additional data ready on the socket. I fixed
>>> this
>>> by adding a call to make the socket active again as is the case in the
>>> subsequent next_packet function definition when the decoded_data_buffer is
>>> not empty.
>>>
>>>  From my testing so far, this resolves the issue and I have not yet seen
>>>> any
>>>>
>>> other side effects. Please let me know what you think.
>>>
>>> I've attached my patch for R13B02, but you can also get it here:
>>>
>>> http://github.com/krisr/erlang-macports/raw/master/lang/erlang/files/patch-lib-ssh-src-ssh_connection_handler.erl.diff
>>>
>>> Best,
>>> Kris
>>>
>>> --
>>> Kris Rasmussen
>>> 
>>>
>>> Twitter: http://twitter.com/aptana
>>> Facebook: http://aptana.com/facebook
>>>
>>>
>>
>>
>
>
> -- 
> Kris Rasmussen
> 
>
> Twitter: http://twitter.com/aptana
> Facebook: http://aptana.com/facebook
>




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