ndbm.h revision 1539 
1/*-
2 * Copyright (c) 1990, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Margo Seltzer.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by the University of
19 *	California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	@(#)ndbm.h	8.1 (Berkeley) 6/2/93
37 */
38
39#ifndef _NDBM_H_
40#define	_NDBM_H_
41
42#include <db.h>
43
44/* Map dbm interface onto db(3). */
45#define DBM_RDONLY	O_RDONLY
46
47/* Flags to dbm_store(). */
48#define DBM_INSERT      0
49#define DBM_REPLACE     1
50
51/*
52 * The db(3) support for ndbm(3) always appends this suffix to the
53 * file name to avoid overwriting the user's original database.
54 */
55#define	DBM_SUFFIX	".db"
56
57typedef struct {
58	char *dptr;
59	int dsize;
60} datum;
61
62typedef DB DBM;
63#define	dbm_pagfno(a)	DBM_PAGFNO_NOT_AVAILABLE
64
65__BEGIN_DECLS
66void	 dbm_close __P((DBM *));
67int	 dbm_delete __P((DBM *, datum));
68datum	 dbm_fetch __P((DBM *, datum));
69datum	 dbm_firstkey __P((DBM *));
70long	 dbm_forder __P((DBM *, datum));
71datum	 dbm_nextkey __P((DBM *));
72DBM	*dbm_open __P((const char *, int, int));
73int	 dbm_store __P((DBM *, datum, datum, int));
74int	 dbm_dirfno __P((DBM *));
75__END_DECLS
76
77#endif /* !_NDBM_H_ */
78