k5login
if (k5login(pw, "", hostname, (char *)passwd) == 0) {
int k5login(struct passwd *, char *, char *, char *);
int k5login(struct passwd *, char *, char *, char *);
int k5login(struct passwd *, char *, char *, char *);
k5login(pwd, instance, localhost, p) == 0) {