1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2009 */
6 /* See the file NOTICE for conditions of use and distribution. */
9 /* Functions for reading/writing exim database files */
11 void dbfn_close(open_db *);
12 int dbfn_delete(open_db *, const uschar *);
13 open_db *dbfn_open(uschar *, int, open_db *, BOOL);
14 void *dbfn_read_with_length(open_db *, const uschar *, int *);
15 uschar *dbfn_scan(open_db *, BOOL, EXIM_CURSOR **);
16 int dbfn_write(open_db *, const uschar *, void *, int);
18 /* Macro for the common call to read without wanting to know the length. */
20 #define dbfn_read(a, b) dbfn_read_with_length(a, b, NULL)
22 /* Berkeley DB uses a callback function to pass back error details. Its API
23 changed at release 4.3. */
25 #if defined(USE_DB) && defined(DB_VERSION_STRING)
26 #if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 3)
27 void dbfn_bdb_error_callback(const DB_ENV *, const char *, const char *);
29 void dbfn_bdb_error_callback(const char *, char *);
33 /* End of dbfunctions.h */