Re: [Soaplab-users] shell builtin

[Sebastien M. <Seb...@un...>]

>     Is there a way to use shell builtin (like type) as executable in
>     application ?
> 
> 
> Not a straightforward way. Java does not support it (as far as I know) 
> so you have to write a wrapper script around your builtin.
> 
> The second option is to use application attribute 'method' in your ACD 
> file. For example, let's assume that you wish to execute builtin 'let' 
> (that returns an exit code depending on the evaluation of its parameters):
> 
> appl: HelloWorld [
>   ...
>   executable: "bash"
>   comment: 'method -c "let ${greeting}"'
> ]
> 
> This works fine - try for example the command-lines (and see that the 
> exit code changes):
> 
> build/run/run-cmdline-client -name classic.helloworld -w -r -protocol 
> local greeting '1+1'
> build/run/run-cmdline-client -name classic.helloworld -w -r -protocol 
> local greeting '1-1'
> 
> But this might be a security risk - a user can send anything and it is 
> evaluated by your bash. I recommend to use it with caution and only when 
> limited access is established.
> 
> Cheers,
> Martin

I know it is a security issue but it is only for internal use, and only 
for type shell builtin which is more reactive than unix which command on 
our file system.

It works perfectly !

Thanks

-- 
Sébastien Moretti
SIB, Quartier Sorge - Genopode
CH-1015 Lausanne, Switzerland
Tel.: +41 (21) 692 4056/4221