Function str_sprintf

freebsd/contrib/openzfs/module/lua/lstrlib.c:35–44

* The provided version of sprintf returns a char *, but str_format expects * it to return the number of characters printed. This version has the expected * behavior. */

 * behavior.
 */
static size_t str_sprintf(char *buf, const char *fmt, ...) {
  va_list args;
  size_t len;

  va_start(args, fmt);
  len = vsnprintf(buf, INT_MAX, fmt, args);
  va_end(args);

  return len;
}


static int str_len (lua_State *L) {