[Bro] External commands - Error

[Riccardo Bortolameotti]

Thank you very much guys!
On 16 Apr 2014 19:04, "Bernhard Amann" <bernhard at icsi.berkeley.edu> wrote:

> Hi,
>
> you have to use Exec::run inside of a when statement - because the command
> is run asynchronously results are not immediately available.
>
> You can e.g. see
> https://github.com/bro/bro/blob/master/scripts/base/utils/dir.bro for an
> example that uses it.
>
> Bernhard
>
> On Apr 16, 2014, at 8:03 AM, Riccardo Bortolameotti <
> r.bortolameotti at gmail.com> wrote:
>
> >
> > Hello everybody,
> >
> > I am having a problem regarding external command execution.
> >
> > This is the piece of code:
> > function f (s : string) :  Exec::Result
> > {
> >       local anagram : Exec::Command;
> >       local res : Exec::Result;
> >       res = [$exit_code = 0];
> >       local prog = "/home/riccardo/ngram-ids/ngram-ids/ngram-ids";
> >       local param = "-l /home/riccardo/ngram-ids/ngram-ids/save -m test
> -t 0 -U " + s;
> >       anagram = [$cmd = prog, $stdin = param];
> >       res = Exec::run(anagram);
> >       return res;
> > }
> > Basically the problem is that the variable res do not receive any value
> > from the execution of the program. Since this execution should be run
> > several times because is within a loop, I do not know if there are
> > problems of threading (like wait for the result). I also receive an
> > error like this:
> >
> > 1394205441.982764 warning: non-void function returns without a value:
> > Exec::run
> > 1394205441.982764 error: return trigger in context which does not allow
> > delaying result
> >
> > thank you in advance,
> >
> > R.
> >
> > _______________________________________________
> > Bro mailing list
> > bro at bro-ids.org
> > http://mailman.ICSI.Berkeley.EDU/mailman/listinfo/bro
> >
> >
>
>
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