make_space
if (!make_space(&buf, vp->name_len + 2 + digits_in(ln)))
if (!make_space(&buf, vp->name_len + 2 + 256))
if (make_space(&tzs, strlen(tz) + 1)) {
while (make_space(&buf, len)) {
if (!make_space(&buf, vp->name_len + 2 + digits_in(secs)))
if (make_space(&buf, vp->name_len + 2 + strlen(pw->pw_name))) {
if (!make_space(&buf, vp->name_len + 2 + digits_in(random_val)))