s4-privs: add root_privileges_original_uid()

This can be used to get the uid we changed away from when we gained 
root privileges

Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/util/unix_privs.c b/lib/util/unix_privs.c
index b30b2f5163..9aa9a45918 100644
--- a/lib/util/unix_privs.c
+++ b/lib/util/unix_privs.c
@@ -85,3 +85,9 @@ void *root_privileges(void)
 	talloc_set_destructor(s, privileges_destructor);
 	return s;
 }
+
+uid_t root_privileges_original_uid(void *s)
+{
+	struct saved_state *saved = talloc_get_type_abort(s, struct saved_state);
+	return saved->uid;
+}