krb5_ktfileint_read_entry
krb5_ktfileint_read_entry(krb5_context, krb5_keytab, krb5_keytab_entry *);
if ((kerror = krb5_ktfileint_read_entry(context, id, &new_entry)))
if ((kerror = krb5_ktfileint_read_entry(context, id, &cur_entry))) {