1/*-
2 * Copyright (c) 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#if defined(LIBC_SCCS) && !defined(lint)
35static char sccsid[] = "@(#)db.c	8.4 (Berkeley) 2/21/94";
36#endif /* LIBC_SCCS and not lint */
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD: src/lib/libc/db/db/db.c,v 1.2 2002/03/22 21:52:01 obrien Exp $");
39
40#include <sys/types.h>
41
42#include <errno.h>
43#include <fcntl.h>
44#include <stddef.h>
45#include <stdio.h>
46
47#include <db.h>
48
49DB *
50dbopen(fname, flags, mode, type, openinfo)
51	const char *fname;
52	int flags, mode;
53	DBTYPE type;
54	const void *openinfo;
55{
56
57#define	DB_FLAGS	(DB_LOCK | DB_SHMEM | DB_TXN)
58#define	USE_OPEN_FLAGS							\
59	(O_CREAT | O_EXCL | O_EXLOCK | O_NONBLOCK | O_RDONLY |		\
60	 O_RDWR | O_SHLOCK | O_TRUNC)
61
62	if ((flags & ~(USE_OPEN_FLAGS | DB_FLAGS)) == 0)
63		switch (type) {
64		case DB_BTREE:
65			return (__bt_open(fname, flags & USE_OPEN_FLAGS,
66			    mode, openinfo, flags & DB_FLAGS));
67		case DB_HASH:
68			return (__hash_open(fname, flags & USE_OPEN_FLAGS,
69			    mode, openinfo, flags & DB_FLAGS));
70		case DB_RECNO:
71			return (__rec_open(fname, flags & USE_OPEN_FLAGS,
72			    mode, openinfo, flags & DB_FLAGS));
73		}
74	errno = EINVAL;
75	return (NULL);
76}
77
78static int
79__dberr()
80{
81	return (RET_ERROR);
82}
83
84/*
85 * __DBPANIC -- Stop.
86 *
87 * Parameters:
88 *	dbp:	pointer to the DB structure.
89 */
90void
91__dbpanic(dbp)
92	DB *dbp;
93{
94	/* The only thing that can succeed is a close. */
95	dbp->del = (int (*)())__dberr;
96	dbp->fd = (int (*)())__dberr;
97	dbp->get = (int (*)())__dberr;
98	dbp->put = (int (*)())__dberr;
99	dbp->seq = (int (*)())__dberr;
100	dbp->sync = (int (*)())__dberr;
101}
102