Annotation of src/lib/libc/db/db/db.c, Revision 1.14
1.14 ! christos 1: /* $NetBSD: db.c,v 1.13 2003/08/07 16:42:42 agc Exp $ */
1.7 cgd 2:
1.1 cgd 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.
1.13 agc 15: * 3. Neither the name of the University nor the names of its contributors
1.1 cgd 16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
31:
1.8 christos 32: #include <sys/cdefs.h>
1.1 cgd 33: #if defined(LIBC_SCCS) && !defined(lint)
1.7 cgd 34: #if 0
1.6 cgd 35: static char sccsid[] = "@(#)db.c 8.4 (Berkeley) 2/21/94";
1.7 cgd 36: #else
1.14 ! christos 37: __RCSID("$NetBSD: db.c,v 1.13 2003/08/07 16:42:42 agc Exp $");
1.7 cgd 38: #endif
1.1 cgd 39: #endif /* LIBC_SCCS and not lint */
40:
1.9 jtc 41: #include "namespace.h"
1.1 cgd 42: #include <sys/types.h>
43:
44: #include <errno.h>
1.4 cgd 45: #include <fcntl.h>
1.1 cgd 46: #include <stddef.h>
47: #include <stdio.h>
48:
49: #include <db.h>
1.14 ! christos 50: static int __dberr(void);
1.9 jtc 51:
52: #ifdef __weak_alias
1.12 mycroft 53: __weak_alias(dbopen,_dbopen)
1.9 jtc 54: #endif
1.1 cgd 55:
56: DB *
1.14 ! christos 57: dbopen(const char *fname, int flags, mode_t mode, DBTYPE type,
! 58: const void *openinfo)
1.1 cgd 59: {
1.4 cgd 60:
61: #define DB_FLAGS (DB_LOCK | DB_SHMEM | DB_TXN)
62: #define USE_OPEN_FLAGS \
1.5 cgd 63: (O_CREAT | O_EXCL | O_EXLOCK | O_NONBLOCK | O_RDONLY | \
64: O_RDWR | O_SHLOCK | O_TRUNC)
1.4 cgd 65:
66: if ((flags & ~(USE_OPEN_FLAGS | DB_FLAGS)) == 0)
67: switch (type) {
68: case DB_BTREE:
69: return (__bt_open(fname, flags & USE_OPEN_FLAGS,
1.11 christos 70: mode, openinfo, (int)(flags & DB_FLAGS)));
1.4 cgd 71: case DB_HASH:
72: return (__hash_open(fname, flags & USE_OPEN_FLAGS,
1.11 christos 73: mode, openinfo, (int)(flags & DB_FLAGS)));
1.4 cgd 74: case DB_RECNO:
75: return (__rec_open(fname, flags & USE_OPEN_FLAGS,
1.11 christos 76: mode, openinfo, (int)(flags & DB_FLAGS)));
1.4 cgd 77: }
1.1 cgd 78: errno = EINVAL;
79: return (NULL);
80: }
81:
82: static int
1.14 ! christos 83: __dberr(void)
1.1 cgd 84: {
85: return (RET_ERROR);
86: }
87:
88: /*
89: * __DBPANIC -- Stop.
90: *
91: * Parameters:
92: * dbp: pointer to the DB structure.
93: */
94: void
1.14 ! christos 95: __dbpanic(DB *dbp)
1.1 cgd 96: {
97: /* The only thing that can succeed is a close. */
1.8 christos 98: dbp->del = (int (*)(const struct __db *, const DBT*, u_int))__dberr;
99: dbp->fd = (int (*)(const struct __db *))__dberr;
100: dbp->get = (int (*)(const struct __db *, const DBT*, DBT *, u_int))__dberr;
101: dbp->put = (int (*)(const struct __db *, DBT *, const DBT *, u_int))__dberr;
102: dbp->seq = (int (*)(const struct __db *, DBT *, DBT *, u_int))__dberr;
103: dbp->sync = (int (*)(const struct __db *, u_int))__dberr;
1.1 cgd 104: }
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