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 * 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 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 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