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-rw-r--r--source3/lib/tdb/common/open.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/source3/lib/tdb/common/open.c b/source3/lib/tdb/common/open.c
index 2a438971d4..b19e4cea29 100644
--- a/source3/lib/tdb/common/open.c
+++ b/source3/lib/tdb/common/open.c
@@ -227,6 +227,7 @@ struct tdb_context *tdb_open_ex(const char *name, int hash_size, int tdb_flags,
/* we need to zero database if we are the only one with it open */
if ((tdb_flags & TDB_CLEAR_IF_FIRST) &&
+ (!tdb->read_only) &&
(locked = (tdb->methods->tdb_brlock(tdb, ACTIVE_LOCK, F_WRLCK, F_SETLK, 0, 1) == 0))) {
open_flags |= O_CREAT;
if (ftruncate(tdb->fd, 0) == -1) {