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diff --git a/lib/tdb_wrap/tdb_wrap.h b/lib/tdb_wrap/tdb_wrap.h
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+/*
+ Unix SMB/CIFS implementation.
+
+ database wrap headers
+
+ Copyright (C) Andrew Tridgell 2004
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* IMPORTANT: tdb_wrap should be always preferred over tdb_context for end consumer functions
+ it's because if the code will be running inside smbd, then we must use the linked list
+ of open tdb files, to determine if the tdb we desire is already open
+ as otherwise, when you close the tdb (even on a different file descriptor),
+ ALL LOCKS are lost (due to a real screwup in the POSIX specification that nobody has been able to get fixed)
+*/
+
+#ifndef _TDB_WRAP_H_
+#define _TDB_WRAP_H_
+
+#include <talloc.h>
+#include <tdb.h>
+
+struct tdb_wrap {
+ struct tdb_context *tdb;
+};
+
+struct tdb_wrap *tdb_wrap_open(TALLOC_CTX *mem_ctx,
+ const char *name, int hash_size, int tdb_flags,
+ int open_flags, mode_t mode);
+
+#endif /* _TDB_WRAP_H_ */