minix3-3.4.0/include/ndbm.h

1 /*	$NetBSD: ndbm.h,v 1.15 2010/02/03 15:34:40 roy Exp $	*/
2 
3 /*-
4  * Copyright (c) 1990, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Margo Seltzer.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  *
34  *	@(#)ndbm.h	8.1 (Berkeley) 6/2/93
35  */
36 
37 #ifndef _NDBM_H_
38 #define	_NDBM_H_
39 
40 #include <sys/cdefs.h>
41 #include <sys/featuretest.h>
42 #include <stdint.h>
43 #include <db.h>
44 
45 #if defined(_NETBSD_SOURCE)
46 /* Map dbm interface onto db(3). */
47 #define DBM_RDONLY	O_RDONLY
48 #endif
49 
50 /* Flags to dbm_store(). */
51 #define DBM_INSERT      0
52 #define DBM_REPLACE     1
53 
54 #if defined(_NETBSD_SOURCE)
55 /*
56  * The db(3) support for ndbm(3) always appends this suffix to the
57  * file name to avoid overwriting the user's original database.
58  */
59 #define	DBM_SUFFIX	".db"
60 #endif
61 
62 typedef struct {
63 	void	*dptr;
64 	size_t	 dsize;		/* XPG4.2 */
65 } datum;
66 
67 typedef DB DBM;
68 #if defined(_NETBSD_SOURCE)
69 #define	dbm_pagfno(a)	DBM_PAGFNO_NOT_AVAILABLE
70 #endif
71 
72 __BEGIN_DECLS
73 void	 dbm_close(DBM *);
74 DBM	*dbm_open(const char *, int, mode_t);
75 int	 dbm_error(DBM *);
76 int	 dbm_clearerr(DBM *);
77 #if defined(_NETBSD_SOURCE)
78 int	 dbm_dirfno(DBM *);
79 #endif
80 #ifndef __LIBC12_SOURCE__
81 int	 dbm_delete(DBM *, datum)		__RENAME(__dbm_delete13);
82 datum	 dbm_fetch(DBM *, datum)		__RENAME(__dbm_fetch13);
83 datum	 dbm_firstkey(DBM *)			__RENAME(__dbm_firstkey13);
84 datum	 dbm_nextkey(DBM *)			__RENAME(__dbm_nextkey13);
85 int	 dbm_store(DBM *, datum, datum, int)	__RENAME(__dbm_store13);
86 #endif
87 __END_DECLS
88 
89 #endif /* !_NDBM_H_ */