[BusyBox] httpd CGI Forms Parameter Names

[Vladimir N. Oleynik]

Kianusch,

>>You're probably best off not using special characters in parameter names
>>with busybox httpd if you are using the CGI_vars feature.  Since these
>>are ultimately passed to setenv it's best not to use special characters
>>for variable names.
> 
> 
> Yep - I agree ...
> 
> 
>>Note that if you use variable_1 variable_2 it would be easy enough to
>>convert them to arrays in your cgi shell script.
> 
> 
> Nope - I don't agree ... :-)
> 
> At least not with the included shell in busybox (ash).
> 
> I did not find a way to construct "dynamic variable names", like ...
> 
>   variable_1=1
>   variable_2=2
>   ...
>   variable_6=6
> 
>   for i in 1 2 3 4 5 6
>   do
>     echo ${variable_${i}}
>   done

You can use eval

> ... will also not work with ash ... but it works with bash or (pd)ksh.
> and (pd)ksh compiles to about 100k with uclibc :-)
> 
> ksh is quite handy as it also supports calculations like
> 
>   x=1
>   let x=$x+5

I realised this from one month old.
You used old version busybox ash. Please upgrading.


--w
vodz