From ad15f42b6d50eff9199aef7497d24b2c9167fea1 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Sun, 28 Mar 2004 01:38:42 +0000
Subject: [PATCH 1/1] added a TDB_MODIFY flag to tdb_store() that says "if the
 record doesn't exist then fail the store" (This used to be commit
 6aec1457f8772cf81b88a0a00cc2ad7c16cd0d87)

---
 source4/lib/tdb/tdb.c | 6 ++++++
 source4/lib/tdb/tdb.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/source4/lib/tdb/tdb.c b/source4/lib/tdb/tdb.c
index 8fbf1289146..5f57f057786 100644
--- a/source4/lib/tdb/tdb.c
+++ b/source4/lib/tdb/tdb.c
@@ -1479,6 +1479,12 @@ int tdb_store(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, int flag)
 		/* first try in-place update, on modify or replace. */
 		if (tdb_update_hash(tdb, key, hash, dbuf) == 0)
 			goto out;
+		if (tdb->ecode == TDB_ERR_NOEXIST &&
+		    flag == TDB_MODIFY) {
+			/* if the record doesn't exist and we are in TDB_MODIFY mode then
+			 we should fail the store */
+			goto fail;
+		}
 	}
 	/* reset the error code potentially set by the tdb_update() */
 	tdb->ecode = TDB_SUCCESS;
diff --git a/source4/lib/tdb/tdb.h b/source4/lib/tdb/tdb.h
index b3a28b7440e..b7c51b55195 100644
--- a/source4/lib/tdb/tdb.h
+++ b/source4/lib/tdb/tdb.h
@@ -29,6 +29,7 @@ extern "C" {
 /* flags to tdb_store() */
 #define TDB_REPLACE 1
 #define TDB_INSERT 2
+#define TDB_MODIFY 3
 
 /* flags for tdb_open() */
 #define TDB_DEFAULT 0 /* just a readability place holder */
-- 
2.34.1