xref: /illumos-gate/usr/src/ucbhead/dbm.h (revision 8b80e8cb6855118d46f605e91b5ed4ce83417395)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 /*
31  * University Copyright- Copyright (c) 1982, 1986, 1988
32  * The Regents of the University of California
33  * All Rights Reserved
34  *
35  * University Acknowledgment- Portions of this document are derived from
36  * software developed by the University of California, Berkeley, and its
37  * contributors.
38  */
39 
40 #ifndef _DBM_H
41 #define	_DBM_H
42 
43 #pragma ident	"%Z%%M%	%I%	%E% SMI"
44 
45 #ifdef __cplusplus
46 extern "C" {
47 #endif
48 
49 #define	PBLKSIZ	1024
50 #define	DBLKSIZ	4096
51 #define	BYTESIZ	8
52 
53 #ifndef	NULL
54 #define	NULL	((char *) 0)
55 #endif
56 
57 long	bitno;
58 long	maxbno;
59 long	blkno;
60 long	hmask;
61 
62 char	pagbuf[PBLKSIZ];
63 char	dirbuf[DBLKSIZ];
64 
65 int	dirf;
66 int	pagf;
67 int	dbrdonly;
68 
69 #ifndef	DATUM
70 typedef	struct
71 {
72 	char	*dptr;
73 	int	dsize;
74 } datum;
75 #define	DATUM
76 #endif
77 
78 #ifdef __STDC__
79 datum	fetch(datum);
80 datum	makdatum(char *, int);
81 datum	firstkey(void);
82 datum	nextkey(datum);
83 datum	firsthash(long);
84 long	calchash(datum);
85 long	hashinc(long);
86 #else
87 datum	fetch();
88 datum	makdatum();
89 datum	firstkey();
90 datum	nextkey();
91 datum	firsthash();
92 long	calchash();
93 long	hashinc();
94 #endif
95 
96 #ifdef __cplusplus
97 }
98 #endif
99 
100 #endif	/* _DBM_H */
101