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Groups > gnu.bash.bug > #14905 > unrolled thread

Re: temp env allows variables that look like array subscripts

Started byChet Ramey <chet.ramey@case.edu>
First post2018-12-11 15:07 -0500
Last post2018-12-11 15:07 -0500
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  Re: temp env allows variables that look like array subscripts Chet Ramey <chet.ramey@case.edu> - 2018-12-11 15:07 -0500

#14905 — Re: temp env allows variables that look like array subscripts

FromChet Ramey <chet.ramey@case.edu>
Date2018-12-11 15:07 -0500
SubjectRe: temp env allows variables that look like array subscripts
Message-ID<mailman.5603.1544558876.1284.bug-bash@gnu.org>
On 12/8/18 11:45 PM, Grisha Levit wrote:
> FWIW, namerefs in the temporary environment bypass the implemented checks:
> 
>     $ declare -n ref=var[0]
>     $ ref=X printenv 'var[0]'
>     X

Thanks for the report. We should follow namerefs, but in this case not
allow nameref values that aren't valid shell identifiers. I will fix this
for the next devel branch push.

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
		 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/

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