11573Srgrimes/*- 21573Srgrimes * Copyright (c) 1991, 1993 31573Srgrimes * The Regents of the University of California. All rights reserved. 41573Srgrimes * 51573Srgrimes * Redistribution and use in source and binary forms, with or without 61573Srgrimes * modification, are permitted provided that the following conditions 71573Srgrimes * are met: 81573Srgrimes * 1. Redistributions of source code must retain the above copyright 91573Srgrimes * notice, this list of conditions and the following disclaimer. 101573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111573Srgrimes * notice, this list of conditions and the following disclaimer in the 121573Srgrimes * documentation and/or other materials provided with the distribution. 131573Srgrimes * 4. Neither the name of the University nor the names of its contributors 141573Srgrimes * may be used to endorse or promote products derived from this software 151573Srgrimes * without specific prior written permission. 161573Srgrimes * 171573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271573Srgrimes * SUCH DAMAGE. 281573Srgrimes */ 291573Srgrimes 301573Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 311573Srgrimesstatic char sccsid[] = "@(#)db.c 8.4 (Berkeley) 2/21/94"; 321573Srgrimes#endif /* LIBC_SCCS and not lint */ 3392986Sobrien#include <sys/cdefs.h> 3492986Sobrien__FBSDID("$FreeBSD$"); 351573Srgrimes 361573Srgrimes#include <sys/types.h> 371573Srgrimes 381573Srgrimes#include <errno.h> 391573Srgrimes#include <fcntl.h> 401573Srgrimes#include <stddef.h> 411573Srgrimes#include <stdio.h> 421573Srgrimes 431573Srgrimes#include <db.h> 441573Srgrimes 45189291Sdelphijstatic int __dberr(void); 46189291Sdelphij 471573SrgrimesDB * 48189291Sdelphijdbopen(const char *fname, int flags, int mode, DBTYPE type, const void *openinfo) 491573Srgrimes{ 501573Srgrimes 511573Srgrimes#define DB_FLAGS (DB_LOCK | DB_SHMEM | DB_TXN) 521573Srgrimes#define USE_OPEN_FLAGS \ 53190497Sdelphij (O_CREAT | O_EXCL | O_EXLOCK | O_NOFOLLOW | O_NONBLOCK | \ 54190497Sdelphij O_RDONLY | O_RDWR | O_SHLOCK | O_SYNC | O_TRUNC) 551573Srgrimes 561573Srgrimes if ((flags & ~(USE_OPEN_FLAGS | DB_FLAGS)) == 0) 571573Srgrimes switch (type) { 581573Srgrimes case DB_BTREE: 591573Srgrimes return (__bt_open(fname, flags & USE_OPEN_FLAGS, 601573Srgrimes mode, openinfo, flags & DB_FLAGS)); 611573Srgrimes case DB_HASH: 621573Srgrimes return (__hash_open(fname, flags & USE_OPEN_FLAGS, 631573Srgrimes mode, openinfo, flags & DB_FLAGS)); 641573Srgrimes case DB_RECNO: 651573Srgrimes return (__rec_open(fname, flags & USE_OPEN_FLAGS, 661573Srgrimes mode, openinfo, flags & DB_FLAGS)); 671573Srgrimes } 681573Srgrimes errno = EINVAL; 691573Srgrimes return (NULL); 701573Srgrimes} 711573Srgrimes 721573Srgrimesstatic int 73189291Sdelphij__dberr(void) 741573Srgrimes{ 751573Srgrimes return (RET_ERROR); 761573Srgrimes} 771573Srgrimes 781573Srgrimes/* 791573Srgrimes * __DBPANIC -- Stop. 801573Srgrimes * 811573Srgrimes * Parameters: 821573Srgrimes * dbp: pointer to the DB structure. 831573Srgrimes */ 841573Srgrimesvoid 85189291Sdelphij__dbpanic(DB *dbp) 861573Srgrimes{ 871573Srgrimes /* The only thing that can succeed is a close. */ 88189291Sdelphij dbp->del = (int (*)(const struct __db *, const DBT*, u_int))__dberr; 89189291Sdelphij dbp->fd = (int (*)(const struct __db *))__dberr; 90189291Sdelphij dbp->get = (int (*)(const struct __db *, const DBT*, DBT *, u_int))__dberr; 91189291Sdelphij dbp->put = (int (*)(const struct __db *, DBT *, const DBT *, u_int))__dberr; 92189291Sdelphij dbp->seq = (int (*)(const struct __db *, DBT *, DBT *, u_int))__dberr; 93189291Sdelphij dbp->sync = (int (*)(const struct __db *, u_int))__dberr; 941573Srgrimes} 95