Stuff

void safevoid_vsnprintf(char* s, size_t n, const char *format, va_list ap) { 	int res;		if(!s || n <= 0)		return;		// If the format string is empty, nothing to do.	if(!format || !*format) {		s[0]=0;		return;	}		res = vsnprintf(s, n, format, ap);		if(res < 0 || res >= n)		s[n-1]=0;}