int snprintf (char *s, size_t n, const char *format, ...) { int result; VA_OPEN (ap, format); VA_FIXEDARG (ap, char *, s); VA_FIXEDARG (ap, size_t, n); VA_FIXEDARG (ap, const char *, format); result = vsnprintf (s, n, format, ap); VA_CLOSE (ap); return result; }
static int ATTRIBUTE_PRINTF_3 checkit (char *s, size_t n, const char *format, ...) { int result; VA_OPEN (ap, format); VA_FIXEDARG (ap, char *, s); VA_FIXEDARG (ap, size_t, n); VA_FIXEDARG (ap, const char *, format); result = vsnprintf (s, n, format, ap); VA_CLOSE (ap); return result; }