Re: [ptxdist] [PATCH] ptxdist: unset: env: remove func prefix/suffix added by shellshock

[Michael Olbrich <m.olbrich@pengutronix.de>]

On Sun, Oct 12, 2014 at 01:09:34AM -0400, jon@ringle.org wrote:
> From: Jon Ringle <jringle@gridpoint.com>
> 

I've pushed a different patch that uses the builtin 'export' to get the
list. My hope is, that it will hide any changes like this in the future.

Michael

> Signed-off-by: Jon Ringle <jringle@gridpoint.com>
> ---
>  bin/ptxdist | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/bin/ptxdist b/bin/ptxdist
> index f823ebe..10fc492 100755
> --- a/bin/ptxdist
> +++ b/bin/ptxdist
> @@ -2146,8 +2146,15 @@ setup_env() {
>  	whitelist="${*}"
>  	whitelist="${whitelist:+|}${whitelist// /|}"
>  
> +	ptx_test_func_env_name(){ :; }
> +	export -f ptx_test_func_env_name
> +	func_env_name=$(/usr/bin/env | grep ptx_test_func_env_name|cut -f1 -d=)
> +	func_prefix=${func_env_name/ptx_test_func_env_name*}
> +	func_suffix=${func_env_name/*ptx_test_func_env_name}
> +
>  	unset $(/usr/bin/env | \
>  		sed -n -e "s/^\([^=[:space:]]\+\)=.*$/\1/p" | \
> +		sed -e "s/^${func_prefix}\(.*\)${func_suffix}$/\1/g" | \
>  		egrep -v "^(PTXDIST_PTXRC|PTX_AUTOBUILD_DESTDIR|CCACHE_.*|PWD|HOME|USER|PATH|TERM|COLUMNS|LINES|DISPLAY|TMPDIR|http_proxy|https_proxy|ftp_proxy|no_proxy${whitelist})$" )
>  
>  	######## the environment is clean now ########
> -- 
> 1.8.5.4
> 
> 
> -- 
> ptxdist mailing list
> ptxdist@pengutronix.de
> 

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