+/*
+ * This is the external representation of struct ucred.
+ */
+struct xucred {
+ u_int cr_version; /* structure layout version */
+ uid_t cr_uid; /* effective user id */
+ short cr_ngroups; /* number of groups */
+ gid_t cr_groups[NGROUPS]; /* groups */
+};
+#define XUCRED_VERSION 0
+