Telnetd should close stray descriptors in its children

Doug Graham dgraham at nortel.com
Wed Jun 17 23:40:42 UTC 2009


Rob Landley wrote:
> On Thursday 11 June 2009 10:01:35 Denys Vlasenko wrote:
>   
>> Pity there is no way to ask "what is the highest open fd#?" in Unix.
>>     
>
> ls /proc/self/fd | tail 1
>
> Now if you want a non-disgusting way to ask that question, that's another 
> matter. :)
>
>   
I assume you meant a non-disgusting way to *answer* that question?  This 
might be slightly less disgusting:

  grep FDSize /proc/self/status

Not an exact answer to the question, but should give a wildly inaccurate 
approximation to a high water mark.

--Doug





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