D46908.id145899.diff
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D46908.id145899.diff
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	diff --git a/sys/kern/kern_prot.c b/sys/kern/kern_prot.c
	--- a/sys/kern/kern_prot.c
	+++ b/sys/kern/kern_prot.c
	@@ -1289,7 +1289,7 @@
	/*
	* Returns whether gid designates a supplementary group in cred.
	*/
	-static bool
	+bool
	group_is_supplementary(const gid_t gid, const struct ucred *const cred)
	{

	diff --git a/sys/sys/ucred.h b/sys/sys/ucred.h
	--- a/sys/sys/ucred.h
	+++ b/sys/sys/ucred.h
	@@ -155,6 +155,17 @@
	void cru2x(struct ucred cr, struct xucred xcr);
	void cru2xt(struct thread td, struct xucred xcr);
	void crsetgroups(struct ucred cr, int n, gid_t groups);
	+
	+/*
	+ * Returns whether gid designates a primary group in cred.
	+ */
	+static inline bool
	+group_is_primary(const gid_t gid, const struct ucred *const cred)
	+{
	+ return (gid == cred->cr_groups[0] \|\| gid == cred->cr_rgid \|\|
	+ gid == cred->cr_svgid);
	+}
	+bool group_is_supplementary(const gid_t gid, const struct ucred *const cred);
	bool groupmember(gid_t gid, const struct ucred *cred);
	bool realgroupmember(gid_t gid, const struct ucred *cred);
	#endif /* _KERNEL */