1 /* $Cambridge: exim/src/src/lookups/cdb.h,v 1.1 2004/10/07 13:10:01 ph10 Exp $ */
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
8 * $Id: cdb.h,v 1.2.2.1 1998/05/29 16:21:36 cvs Exp $
10 * Exim - CDB database lookup module
11 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
13 * Copyright (c) 1998 Nigel Metheringham, Planet Online Ltd
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version 2
18 * of the License, or (at your option) any later version.
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
31 * This code implements Dan Bernstein's Constant DataBase (cdb) spec.
32 * Information, the spec and sample code for cdb can be obtained from
33 * http://www.pobox.com/~djb/cdb.html
35 * This implementation borrows some code from Dan Bernstein's
36 * implementation (which has no license restrictions applied to it).
37 * This (read-only) implementation is completely contained within
38 * cdb.[ch] it does *not* link against an external cdb library.
41 * There are 2 varients included within this code. One uses MMAP and
42 * should give better performance especially for multiple lookups on a
43 * modern machine. The other is the default implementation which is
44 * used in the case where the MMAP fails or if MMAP was not compiled
45 * in. this implementation is the same as the original reference cdb
51 /* Functions for reading exim cdb files */
53 extern void *cdb_open(uschar *, uschar **);
54 extern BOOL cdb_check(void *, uschar *, int, uid_t *, gid_t *, uschar **);
55 extern int cdb_find(void *, uschar *, uschar *, int, uschar **, uschar **,
57 extern void cdb_close(void *);