X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/c988f1f4faa9f679f79beddf3c14676c5dcb8e28..a85c067ba6c6940512cf57ec213277a370d87e70:/src/src/dbfunctions.h

diff --git a/src/src/dbfunctions.h b/src/src/dbfunctions.h
index 74c7e6127..93e1d3405 100644
--- a/src/src/dbfunctions.h
+++ b/src/src/dbfunctions.h
@@ -1,30 +1,39 @@
-/* $Cambridge: exim/src/src/dbfunctions.h,v 1.2 2005/01/04 10:00:42 ph10 Exp $ */
-
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2005 */
+/* Copyright (c) The Exim Maintainers 2022 */
+/* Copyright (c) University of Cambridge 1995 - 2021 */
 /* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
+#ifndef DBFUNCTIONS_H
+#define DBFUNCTIONS_H
 
 /* Functions for reading/writing exim database files */
 
 void     dbfn_close(open_db *);
-int      dbfn_delete(open_db *, uschar *);
-open_db *dbfn_open(uschar *, int, open_db *, BOOL);
-void    *dbfn_read_with_length(open_db *, uschar *, int *);
+int      dbfn_delete(open_db *, const uschar *);
+open_db *dbfn_open(uschar *, int, open_db *, BOOL, BOOL);
+void    *dbfn_read_with_length(open_db *, const uschar *, int *);
+void    *dbfn_read_enforce_length(open_db *, const uschar *, size_t);
 uschar  *dbfn_scan(open_db *, BOOL, EXIM_CURSOR **);
-int      dbfn_write(open_db *, uschar *, void *, int);
+int      dbfn_write(open_db *, const uschar *, void *, int);
 
 /* Macro for the common call to read without wanting to know the length. */
 
 #define  dbfn_read(a, b) dbfn_read_with_length(a, b, NULL)
 
-/* Berkeley DB uses a callback function to pass back error details. */
+/* Berkeley DB uses a callback function to pass back error details. Its API
+changed at release 4.3. */
 
 #if defined(USE_DB) && defined(DB_VERSION_STRING)
+# if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 3)
+void     dbfn_bdb_error_callback(const DB_ENV *, const char *, const char *);
+# else
 void     dbfn_bdb_error_callback(const char *, char *);
+# endif
 #endif
 
+#endif
 /* End of dbfunctions.h */