Hi there,

I'm trying to do something basic in my opinion, and get mixed results

code example is here: http://pastebin.com/b15rrd6n

C function signature (arguments in order):

- pointer to a string (input)
- string size
- pointer to final result (string)
- pointer to result size (int)
- int (always 0 now)
- pointer to a string

sometimes function call works as expected, sometimes it doesn't, I
can't explain why. adding removing few lines of code (random "puts"
calls etc.) will change the function call behavior (will work 20% or
100% of times). am I supposed to maintain memory pointers somehow
(i.e. malloc/free) or my .so lib has bad implementation (i know it's
used in other places without any issues)?

I tried to use LibC approach described on wiki page using malloc, same
deal.

ruby 1.8.7 (2010-12-23 patchlevel 330) [i386-linux] RHEL 5.4
ffi (1.0.7)

best,

--Alex