Re: possible stack flow in bash

From: FBO (fbo2at_private)
Date: Fri Jun 28 2002 - 22:39:26 PDT

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On Fri, Jun 28, 2002 at 04:03:27PM +0000, Junior wrote:
> hi.
Hi,

> Stack in bash stows observing possible.
> 
> Step 1 - bash-2.05a# ls "!x123456"
> ...exitexitexitexitexitexitexitexitexitexitexitexitexitexitexitexitexitexitexite
> xitexitexitexitexitexitexitexitexitexitexitexitexitexitexitexitexitexitexitexite
> xitexitexitexitexitexitexitexitexitexit"
> bash: /bin/ls: Argument list too long
> 
> Step 2 - bash-2.05a# ls "!x123456"
> ...!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
> bash: xrealloc: cannot reallocate 134322944 bytes (0 bytes allocated)
> 

I'm lazy so I didn't type 123456 "!"s manually :-) :

bash-2.05a$ ls `perl -e 'print "!" x 123456'`
...
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!": Der Dateiname ist zu lang

It seems that I can run this line as often as a want - without being able
to reproduce your results.

FBO

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