[sr-dev] rtpengine, Question about 'str_sprintf'

Hi all, I have a question resp. str_sprintf: At the end, it ends up in 'INLINE str *__str_vsprintf(const char *fmt, va_list ap)' in str.h, but what I understand is that vasprintf does not allocate memory and 'INLINE str *__str_vsprintf(const char *fmt, va_list ap)' does not allocate memory too. So there's a risk of writing a string into a memory area not allocated before ? Am I right or isn't it a good day for coding today :-) ? Cheers, Frédéric