xucred
struct xucred anon;
int *has_hostp, int *exflagsp, struct xucred *cr)
int do_mount(struct exportlist *, struct grouplist *, int, struct xucred *,
int *, int *, struct xucred *);
struct xucred *anoncrp, char *dirp, int dirplen)
void parsecred(char *, struct xucred *);
struct xucred def_anon = {
parsecred(char *namelist, struct xucred *cr)
crfromxucred(struct ucred *cr, const struct xucred *xcr)
struct xucred nsd_cr; /* Cred. uid maps to */
struct xucred ex_anon; /* mapping for anonymous user */
int crfromxucred(struct ucred *, const struct xucred *);