/*-
 * Copyright (c) 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)db.c	8.3 (Berkeley) 09/13/93";
#endif /* LIBC_SCCS and not lint */

#include <sys/types.h>

#include <errno.h>
#include <fcntl.h>
#include <stddef.h>
#include <stdio.h>

#define	__DBINTERFACE_PRIVATE
#include <db.h>

DB *
dbopen(fname, flags, mode, type, openinfo)
	const char *fname;
	int flags, mode;
	DBTYPE type;
	const void *openinfo;
{

#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;
}