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- /*-
- * Copyright (c) 1991, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- #if defined(LIBC_SCCS) && !defined(lint)
- static char sccsid[] = "@(#)db.c 8.4 (Berkeley) 2/21/94";
- #endif /* LIBC_SCCS and not lint */
-
- #include <sys/types.h>
-
- #include <errno.h>
- #include <fcntl.h>
- #include <stddef.h>
- #include <stdio.h>
-
- #include <db.h>
-
- #ifdef macintosh
- #include <sys/fcntl.h>
-
- DB *
- dbopen(const char *fname, int flags, int mode, DBTYPE type, const void *openinfo)
- #else
- DB *
- dbopen(fname, flags, mode, type, openinfo)
- const char *fname;
- int flags, mode;
- DBTYPE type;
- const void *openinfo;
- #endif
- {
-
- #define DB_FLAGS (DB_LOCK | DB_SHMEM | DB_TXN)
- #define USE_OPEN_FLAGS \
- (O_CREAT | O_EXCL | O_EXLOCK | O_NONBLOCK | O_RDONLY | \
- O_RDWR | O_SHLOCK | O_TRUNC)
-
- if ((flags & ~(USE_OPEN_FLAGS | DB_FLAGS)) == 0)
- switch (type) {
- case DB_BTREE:
- return (__bt_open(fname, flags & USE_OPEN_FLAGS,
- mode, openinfo, flags & DB_FLAGS));
- case DB_HASH:
- return (__hash_open(fname, flags & USE_OPEN_FLAGS,
- mode, openinfo, flags & DB_FLAGS));
- case DB_RECNO:
- return (__rec_open(fname, flags & USE_OPEN_FLAGS,
- mode, openinfo, flags & DB_FLAGS));
- }
- errno = EINVAL;
- return (NULL);
- }
-
- static int
- __dberr()
- {
- return (RET_ERROR);
- }
-
- /*
- * __DBPANIC -- Stop.
- *
- * Parameters:
- * dbp: pointer to the DB structure.
- */
- void
- __dbpanic(dbp)
- DB *dbp;
- {
- /* The only thing that can succeed is a close. */
- dbp->del = (int (*)())__dberr;
- dbp->fd = (int (*)())__dberr;
- dbp->get = (int (*)())__dberr;
- dbp->put = (int (*)())__dberr;
- dbp->seq = (int (*)())__dberr;
- dbp->sync = (int (*)())__dberr;
- }
-