Check for null tdb context in tdb_exists()

(This used to be commit bbacdb834f9c8f8c34368664def42dabe78d90c9)

1 files changed, 7 insertions, 0 deletions

diff --git a/source3/tdb/tdb.c b/source3/tdb/tdb.c
index c7b70aa153..388f4f419f 100644
--- a/source3/tdb/tdb.c
+++ b/source3/tdb/tdb.c
@@ -703,6 +703,13 @@ int tdb_exists(TDB_CONTEXT *tdb, TDB_DATA key)
 	tdb_off rec_ptr;
 	struct list_struct rec;
 	
+        if (tdb == NULL) {
+#ifdef TDB_DEBUG
+            printf("tdb_exists() called with null context\n");
+#endif
+            return 0;
+        }
+
 	/* find which hash bucket it is in */
 	hash = tdb_hash(&key);