1 /* $FreeBSD$ */ 2 /* $NetBSD: citrus_db_file.h,v 1.4 2008/02/10 05:58:22 junyoung Exp $ */ 3 4 /*- 5 * SPDX-License-Identifier: BSD-2-Clause 6 * 7 * Copyright (c)2003 Citrus Project, 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifndef _CITRUS_DB_FILE_H_ 33 #define _CITRUS_DB_FILE_H_ 34 35 /* 36 * db format: 37 * +--- 38 * | header 39 * | - magic 40 * | - num entries 41 * +--- 42 * | entry directory 43 * | +------------ 44 * | | entry0 45 * | | - hash value 46 * | | - next entry 47 * | | - key offset 48 * | | - key len 49 * | | - data offset 50 * | | - data size 51 * | |--- 52 * | | entry1 53 * | | .. 54 * | | entryN 55 * | +--- 56 * +--- 57 * | key table 58 * | - key0 59 * | ... 60 * | - keyN 61 * +--- 62 * | data table 63 * | - data0 64 * | ... 65 * | - dataN 66 * +--- 67 */ 68 69 #define _CITRUS_DB_MAGIC_SIZE 8 70 #define _CITRUS_DB_HEADER_SIZE 16 71 struct _citrus_db_header_x { 72 char dhx_magic[_CITRUS_DB_MAGIC_SIZE]; 73 uint32_t dhx_num_entries; 74 uint32_t dhx_entry_offset; 75 } __packed; 76 77 struct _citrus_db_entry_x { 78 uint32_t dex_hash_value; 79 uint32_t dex_next_offset; 80 uint32_t dex_key_offset; 81 uint32_t dex_key_size; 82 uint32_t dex_data_offset; 83 uint32_t dex_data_size; 84 } __packed; 85 #define _CITRUS_DB_ENTRY_SIZE 24 86 87 #endif 88