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-rw-r--r--source4/lib/ldb/common/ldb_controls.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/source4/lib/ldb/common/ldb_controls.c b/source4/lib/ldb/common/ldb_controls.c
index 3c2ef5ea00..b38373ec12 100644
--- a/source4/lib/ldb/common/ldb_controls.c
+++ b/source4/lib/ldb/common/ldb_controls.c
@@ -127,7 +127,13 @@ int ldb_request_add_control(struct ldb_request *req, const char *oid, bool criti
struct ldb_control **ctrls;
struct ldb_control *ctrl;
- for (n=0; req->controls && req->controls[n];) { n++; }
+ for (n=0; req->controls && req->controls[n];) {
+ /* having two controls of the same OID makes no sense */
+ if (strcmp(oid, req->controls[n]->oid) == 0) {
+ return LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS;
+ }
+ n++;
+ }
ctrls = talloc_realloc(req, req->controls,
struct ldb_control *,