2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #if defined(LIBC_SCCS) && !defined(lint)
31 static char sccsid[] = "@(#)db.c 8.4 (Berkeley) 2/21/94";
32 #endif /* LIBC_SCCS and not lint */
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #include <sys/types.h>
45 static int __dberr(void);
48 dbopen(const char *fname, int flags, int mode, DBTYPE type, const void *openinfo)
51 #define DB_FLAGS (DB_LOCK | DB_SHMEM | DB_TXN)
52 #define USE_OPEN_FLAGS \
53 (O_CREAT | O_EXCL | O_EXLOCK | O_NOFOLLOW | O_NONBLOCK | \
54 O_RDONLY | O_RDWR | O_SHLOCK | O_SYNC | O_TRUNC)
56 if ((flags & ~(USE_OPEN_FLAGS | DB_FLAGS)) == 0)
59 return (__bt_open(fname, flags & USE_OPEN_FLAGS,
60 mode, openinfo, flags & DB_FLAGS));
62 return (__hash_open(fname, flags & USE_OPEN_FLAGS,
63 mode, openinfo, flags & DB_FLAGS));
65 return (__rec_open(fname, flags & USE_OPEN_FLAGS,
66 mode, openinfo, flags & DB_FLAGS));
82 * dbp: pointer to the DB structure.
87 /* The only thing that can succeed is a close. */
88 dbp->del = (int (*)(const struct __db *, const DBT*, u_int))__dberr;
89 dbp->fd = (int (*)(const struct __db *))__dberr;
90 dbp->get = (int (*)(const struct __db *, const DBT*, DBT *, u_int))__dberr;
91 dbp->put = (int (*)(const struct __db *, DBT *, const DBT *, u_int))__dberr;
92 dbp->seq = (int (*)(const struct __db *, DBT *, DBT *, u_int))__dberr;
93 dbp->sync = (int (*)(const struct __db *, u_int))__dberr;