added dsdb_find_guid_by_dn()

This will be used by the linked_attribute module

diff --git a/source4/dsdb/common/util.c b/source4/dsdb/common/util.c
index 32a89068849e0a9fbc1a47361abe15e9b999a6fb..0ffec8a7eb20189ec7ce8aea88abd4981a9a3554 100644 (file)
--- a/source4/dsdb/common/util.c
+++ b/source4/dsdb/common/util.c
@@ -2111,7 +2111,7 @@ int dsdb_find_dn_by_guid(struct ldb_context *ldb,
           partitions module that can return two here with the
           search_options control set */
        if (res->count < 1) {
-               return LDB_ERR_OPERATIONS_ERROR;
+               return LDB_ERR_NO_SUCH_OBJECT;
        }
 
        *dn = res->msgs[0]->dn;
@@ -2120,3 +2120,23 @@ int dsdb_find_dn_by_guid(struct ldb_context *ldb,
 }
 
 
+/*
+  use a DN to find a GUID
+ */
+int dsdb_find_guid_by_dn(struct ldb_context *ldb, 
+                        struct ldb_dn *dn, struct GUID *guid)
+{
+       int ret;
+       struct ldb_result *res;
+       const char *attrs[] = { "objectGUID" };
+       TALLOC_CTX *tmp_ctx = talloc_new(ldb);
+
+       ret = ldb_search(ldb, tmp_ctx, &res, dn, LDB_SCOPE_BASE, attrs, NULL);
+       if (ret != LDB_SUCCESS) {
+               talloc_free(tmp_ctx);
+               return ret;
+       }
+       *guid = samdb_result_guid(res->msgs[0], "objectGUID");
+       talloc_free(tmp_ctx);
+       return LDB_SUCCESS;
+}