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-rw-r--r--source3/services/services_db.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/source3/services/services_db.c b/source3/services/services_db.c
index ca375d22d4..03f7951b7c 100644
--- a/source3/services/services_db.c
+++ b/source3/services/services_db.c
@@ -270,6 +270,24 @@ static WERROR svcctl_setvalue(struct registry_key *key,
struct registry_value *value)
{
WERROR wresult;
+ struct registry_value *existing;
+
+ wresult = reg_queryvalue(talloc_tos(), key, name, &existing);
+ if (W_ERROR_IS_OK(wresult)) {
+ bool exists;
+
+ exists = ((value->type == existing->type) &&
+ (data_blob_cmp(&value->data, &existing->data) == 0));
+
+ TALLOC_FREE(existing);
+
+ if (exists) {
+ /*
+ * Avoid an expensive write when not necessary
+ */
+ return WERR_OK;
+ }
+ }
wresult = reg_setvalue(key, name, value);
if (!W_ERROR_IS_OK(wresult)) {