1 #pragma ident "%Z%%M% %I% %E% SMI"
2
3 /*-
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #if defined(LIBC_SCCS) && !defined(lint)
37 static char sccsid[] = "@(#)db.c 8.4 (Berkeley) 2/21/94";
38 #endif /* LIBC_SCCS and not lint */
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-int.h"
48
49 DB *
kdb2_dbopen(fname,flags,mode,type,openinfo)50 kdb2_dbopen(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 | O_BINARY)
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
78 static int
__dberr()79 __dberr()
80 {
81 return (RET_ERROR);
82 }
83
84 /*
85 * __DBPANIC -- Stop.
86 *
87 * Parameters:
88 * dbp: pointer to the DB structure.
89 */
90 void
__dbpanic(dbp)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