s4-dsdb: use GUID_from_ndr_blob() to create dsdb_get_extended_dn_guid()

diff --git a/source4/dsdb/common/util.c b/source4/dsdb/common/util.c
index 512230f63c0ec84eecea8e355596e2913ac6960a..dceff3643e36a96ba9b5587018f40f346d17464a 100644 (file)
--- a/source4/dsdb/common/util.c
+++ b/source4/dsdb/common/util.c
@@ -2721,3 +2721,17 @@ int dsdb_functional_level(struct ldb_context *ldb)
        return *domainFunctionality;
 }
 
+/*
+  return a GUID from a extended DN structure
+ */
+NTSTATUS dsdb_get_extended_dn_guid(struct ldb_dn *dn, struct GUID *guid)
+{
+       const struct ldb_val *v;
+
+       v = ldb_dn_get_extended_component(dn, "GUID");
+       if (v == NULL) {
+               return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+       }
+
+       return GUID_from_ndr_blob(v, guid);
+}