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-rw-r--r--source4/lib/ldb/common/ldb_controls.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/source4/lib/ldb/common/ldb_controls.c b/source4/lib/ldb/common/ldb_controls.c
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index 0000000000..e4c4c64a6f
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+/*
+ ldb database library
+
+ Copyright (C) Simo Sorce 2005
+
+ ** NOTE! The following LGPL license applies to the ldb
+ ** library. This does NOT imply that all of Samba is released
+ ** under the LGPL
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+/*
+ * Name: ldb_controls.c
+ *
+ * Component: ldb controls utility functions
+ *
+ * Description: helper functions for control modules
+ *
+ * Author: Simo Sorce
+ */
+
+#include "includes.h"
+#include "ldb/include/ldb.h"
+#include "ldb/include/ldb_errors.h"
+#include "ldb/include/ldb_private.h"
+
+/* check if a control with the specified "oid" exist and return it */
+/* returns NULL if not found */
+struct ldb_control *get_control_from_list(struct ldb_control **controls, const char *oid)
+{
+ int i;
+
+ /* check if there's a paged request control */
+ if (controls != NULL) {
+ for (i = 0; controls[i]; i++) {
+ if (strcmp(oid, controls[i]->oid) == 0) {
+ break;
+ }
+ }
+
+ return controls[i];
+ }
+
+ return NULL;
+}
+
+/* saves the current controls list into the "saver" and replace the one in req with a new one excluding
+the "exclude" control */
+/* returns False on error */
+int save_controls(struct ldb_control *exclude, struct ldb_request *req, struct ldb_control ***saver)
+{
+ struct ldb_control **lcs;
+ int i, j;
+
+ *saver = req->controls;
+ for (i = 0; req->controls[i]; i++);
+ if (i == 1) {
+ req->controls = NULL;
+ return 1;
+ }
+
+ lcs = talloc_array(req, struct ldb_control *, i);
+ if (!lcs) {
+ return 0;
+ }
+
+ for (i = 0, j = 0; (*saver)[i]; i++) {
+ if (exclude == (*saver)[i]) continue;
+ lcs[j] = (*saver)[i];
+ j++;
+ }
+ lcs[j] = NULL;
+
+ req->controls = lcs;
+ return 1;
+}
+
+/* check if there's any control marked as critical in the list */
+/* return True if any, False if none */
+int check_critical_controls(struct ldb_control **controls)
+{
+ int i;
+
+ if (controls == NULL) {
+ return 0;
+ }
+
+ for (i = 0; controls[i]; i++) {
+ if (controls[i]->critical) {
+ return 1;
+ }
+ }
+
+ return 0;
+}