1 | #include <machine/rtems-bsd-user-space.h> |
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2 | |
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3 | /*- |
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4 | * Copyright (c) 1991, 1993 |
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5 | * The Regents of the University of California. All rights reserved. |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions |
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9 | * are met: |
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10 | * 1. Redistributions of source code must retain the above copyright |
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11 | * notice, this list of conditions and the following disclaimer. |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * 4. Neither the name of the University nor the names of its contributors |
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16 | * may be used to endorse or promote products derived from this software |
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17 | * without specific prior written permission. |
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18 | * |
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19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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29 | * SUCH DAMAGE. |
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30 | */ |
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31 | |
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32 | #if defined(LIBC_SCCS) && !defined(lint) |
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33 | static char sccsid[] = "@(#)db.c 8.4 (Berkeley) 2/21/94"; |
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34 | #endif /* LIBC_SCCS and not lint */ |
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35 | #include <sys/cdefs.h> |
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36 | __FBSDID("$FreeBSD$"); |
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37 | |
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38 | #include <sys/types.h> |
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39 | |
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40 | #include <errno.h> |
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41 | #include <fcntl.h> |
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42 | #include <stddef.h> |
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43 | #include <stdio.h> |
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44 | |
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45 | #include <db.h> |
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46 | |
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47 | static int __dberr(void); |
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48 | |
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49 | DB * |
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50 | dbopen(const char *fname, int flags, int mode, DBTYPE type, const void *openinfo) |
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51 | { |
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52 | |
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53 | #define DB_FLAGS (DB_LOCK | DB_SHMEM | DB_TXN) |
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54 | #define USE_OPEN_FLAGS \ |
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55 | (O_CREAT | O_EXCL | O_EXLOCK | O_NOFOLLOW | O_NONBLOCK | \ |
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56 | O_RDONLY | O_RDWR | O_SHLOCK | O_SYNC | O_TRUNC) |
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57 | |
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58 | if ((flags & ~(USE_OPEN_FLAGS | DB_FLAGS)) == 0) |
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59 | switch (type) { |
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60 | case DB_BTREE: |
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61 | return (__bt_open(fname, flags & USE_OPEN_FLAGS, |
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62 | mode, openinfo, flags & DB_FLAGS)); |
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63 | case DB_HASH: |
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64 | return (__hash_open(fname, flags & USE_OPEN_FLAGS, |
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65 | mode, openinfo, flags & DB_FLAGS)); |
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66 | case DB_RECNO: |
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67 | return (__rec_open(fname, flags & USE_OPEN_FLAGS, |
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68 | mode, openinfo, flags & DB_FLAGS)); |
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69 | } |
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70 | errno = EINVAL; |
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71 | return (NULL); |
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72 | } |
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73 | |
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74 | static int |
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75 | __dberr(void) |
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76 | { |
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77 | return (RET_ERROR); |
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78 | } |
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79 | |
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80 | /* |
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81 | * __DBPANIC -- Stop. |
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82 | * |
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83 | * Parameters: |
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84 | * dbp: pointer to the DB structure. |
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85 | */ |
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86 | void |
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87 | __dbpanic(DB *dbp) |
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88 | { |
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89 | /* The only thing that can succeed is a close. */ |
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90 | dbp->del = (int (*)(const struct __db *, const DBT*, u_int))__dberr; |
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91 | dbp->fd = (int (*)(const struct __db *))__dberr; |
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92 | dbp->get = (int (*)(const struct __db *, const DBT*, DBT *, u_int))__dberr; |
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93 | dbp->put = (int (*)(const struct __db *, DBT *, const DBT *, u_int))__dberr; |
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94 | dbp->seq = (int (*)(const struct __db *, DBT *, DBT *, u_int))__dberr; |
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95 | dbp->sync = (int (*)(const struct __db *, u_int))__dberr; |
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96 | } |
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