chkiq
int chkiq(struct inode *, int, struct ucred *, int);
(void)chkiq(ip, -1, NOCRED, FORCE);
(void) chkiq(ip, 1, cred, FORCE|CHOWN);
(error = chkiq(ip, 1, ucp, 0))) {
(error = chkiq(ip, 1, cnp->cn_cred, 0))) {
(error = chkiq(ip, 1, ucp, 0))) {
(error = chkiq(ip, 1, cnp->cn_cred, 0))) {
(void) chkiq(ip, -1, cred, CHOWN|FORCE);
if ((error = chkiq(ip, 1, cred, CHOWN)) == 0)