GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.sbin/makefs/cd9660/iso.h Lines: 0 8 0.0 %
Date: 2017-11-13 Branches: 0 0 0.0 %

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/*	$OpenBSD: iso.h,v 1.2 2016/12/17 16:22:04 krw Exp $	*/
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/*	$NetBSD: iso.h,v 1.10 2011/09/27 01:01:44 christos Exp $	*/
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/*-
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 * Copyright (c) 1994
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 *	The Regents of the University of California.  All rights reserved.
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 *
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 * This code is derived from software contributed to Berkeley
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 * by Pace Willisson (pace@blitz.com).  The Rock Ridge Extension
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 * Support code is derived from software contributed to Berkeley
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 * by Atsushi Murai (amurai@spec.co.jp).
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 *	@(#)iso.h	8.6 (Berkeley) 5/10/95
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 */
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/*
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 * Definitions describing ISO9660 file system structure, as well as
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 * the functions necessary to access fields of ISO9660 file system
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 * structures.
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 */
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#ifndef _ISOFS_CD9660_ISO_H_
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#define _ISOFS_CD9660_ISO_H_
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#define ISODCL(from, to) (to - from + 1)
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struct iso_volume_descriptor {
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	char type[ISODCL(1,1)]; /* 711 */
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	char id[ISODCL(2,6)];
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	char version[ISODCL(7,7)];
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	char data[ISODCL(8,2048)];
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};
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/* volume descriptor types */
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#define ISO_VD_PRIMARY 1
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#define ISO_VD_SUPPLEMENTARY 2
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#define ISO_VD_END 255
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#define ISO_STANDARD_ID "CD001"
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#define ISO_ECMA_ID     "CDW01"
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#define	ISO_MAXNAMLEN	255
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struct iso_primary_descriptor {
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	char type			[ISODCL (  1,   1)]; /* 711 */
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	char id				[ISODCL (  2,   6)];
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	char version			[ISODCL (  7,   7)]; /* 711 */
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	char unused1			[ISODCL (  8,   8)];
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	char system_id			[ISODCL (  9,  40)]; /* achars */
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	char volume_id			[ISODCL ( 41,  72)]; /* dchars */
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	char unused2			[ISODCL ( 73,  80)];
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	char volume_space_size		[ISODCL ( 81,  88)]; /* 733 */
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	char unused3			[ISODCL ( 89, 120)];
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	char volume_set_size		[ISODCL (121, 124)]; /* 723 */
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	char volume_sequence_number	[ISODCL (125, 128)]; /* 723 */
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	char logical_block_size		[ISODCL (129, 132)]; /* 723 */
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	char path_table_size		[ISODCL (133, 140)]; /* 733 */
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	char type_l_path_table		[ISODCL (141, 144)]; /* 731 */
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	char opt_type_l_path_table	[ISODCL (145, 148)]; /* 731 */
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	char type_m_path_table		[ISODCL (149, 152)]; /* 732 */
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	char opt_type_m_path_table	[ISODCL (153, 156)]; /* 732 */
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	char root_directory_record	[ISODCL (157, 190)]; /* 9.1 */
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	char volume_set_id		[ISODCL (191, 318)]; /* dchars */
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	char publisher_id		[ISODCL (319, 446)]; /* achars */
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	char preparer_id		[ISODCL (447, 574)]; /* achars */
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	char application_id		[ISODCL (575, 702)]; /* achars */
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	char copyright_file_id		[ISODCL (703, 739)]; /* 7.5 dchars */
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	char abstract_file_id		[ISODCL (740, 776)]; /* 7.5 dchars */
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	char bibliographic_file_id	[ISODCL (777, 813)]; /* 7.5 dchars */
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	char creation_date		[ISODCL (814, 830)]; /* 8.4.26.1 */
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	char modification_date		[ISODCL (831, 847)]; /* 8.4.26.1 */
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	char expiration_date		[ISODCL (848, 864)]; /* 8.4.26.1 */
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	char effective_date		[ISODCL (865, 881)]; /* 8.4.26.1 */
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	char file_structure_version	[ISODCL (882, 882)]; /* 711 */
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	char unused4			[ISODCL (883, 883)];
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	char application_data		[ISODCL (884, 1395)];
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	char unused5			[ISODCL (1396, 2048)];
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};
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#define ISO_DEFAULT_BLOCK_SIZE		2048
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struct iso_supplementary_descriptor {
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	char type			[ISODCL (  1,	1)]; /* 711 */
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	char id				[ISODCL (  2,	6)];
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	char version			[ISODCL (  7,	7)]; /* 711 */
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	char flags			[ISODCL (  8,	8)]; /* 711? */
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	char system_id			[ISODCL (  9,  40)]; /* achars */
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	char volume_id			[ISODCL ( 41,  72)]; /* dchars */
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	char unused2			[ISODCL ( 73,  80)];
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	char volume_space_size		[ISODCL ( 81,  88)]; /* 733 */
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	char escape			[ISODCL ( 89, 120)];
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	char volume_set_size		[ISODCL (121, 124)]; /* 723 */
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	char volume_sequence_number	[ISODCL (125, 128)]; /* 723 */
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	char logical_block_size		[ISODCL (129, 132)]; /* 723 */
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	char path_table_size		[ISODCL (133, 140)]; /* 733 */
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	char type_l_path_table		[ISODCL (141, 144)]; /* 731 */
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	char opt_type_l_path_table	[ISODCL (145, 148)]; /* 731 */
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	char type_m_path_table		[ISODCL (149, 152)]; /* 732 */
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	char opt_type_m_path_table	[ISODCL (153, 156)]; /* 732 */
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	char root_directory_record	[ISODCL (157, 190)]; /* 9.1 */
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	char volume_set_id		[ISODCL (191, 318)]; /* dchars */
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	char publisher_id		[ISODCL (319, 446)]; /* achars */
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	char preparer_id		[ISODCL (447, 574)]; /* achars */
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	char application_id		[ISODCL (575, 702)]; /* achars */
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	char copyright_file_id		[ISODCL (703, 739)]; /* 7.5 dchars */
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	char abstract_file_id		[ISODCL (740, 776)]; /* 7.5 dchars */
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	char bibliographic_file_id	[ISODCL (777, 813)]; /* 7.5 dchars */
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	char creation_date		[ISODCL (814, 830)]; /* 8.4.26.1 */
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	char modification_date		[ISODCL (831, 847)]; /* 8.4.26.1 */
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	char expiration_date		[ISODCL (848, 864)]; /* 8.4.26.1 */
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	char effective_date		[ISODCL (865, 881)]; /* 8.4.26.1 */
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	char file_structure_version	[ISODCL (882, 882)]; /* 711 */
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	char unused4			[ISODCL (883, 883)];
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	char application_data		[ISODCL (884, 1395)];
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	char unused5			[ISODCL (1396, 2048)];
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};
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struct iso_directory_record {
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	char length			[ISODCL (1, 1)]; /* 711 */
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	char ext_attr_length		[ISODCL (2, 2)]; /* 711 */
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	u_char extent			[ISODCL (3, 10)]; /* 733 */
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	u_char size			[ISODCL (11, 18)]; /* 733 */
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	char date			[ISODCL (19, 25)]; /* 7 by 711 */
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	char flags			[ISODCL (26, 26)];
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	char file_unit_size		[ISODCL (27, 27)]; /* 711 */
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	char interleave			[ISODCL (28, 28)]; /* 711 */
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	char volume_sequence_number	[ISODCL (29, 32)]; /* 723 */
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	char name_len			[ISODCL (33, 33)]; /* 711 */
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	char name			[1];			/* XXX */
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};
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/* can't take sizeof(iso_directory_record), because of possible alignment
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   of the last entry (34 instead of 33) */
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#define ISO_DIRECTORY_RECORD_SIZE	33
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struct iso_extended_attributes {
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	u_char owner			[ISODCL (1, 4)]; /* 723 */
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	u_char group			[ISODCL (5, 8)]; /* 723 */
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	u_char perm			[ISODCL (9, 10)]; /* 9.5.3 */
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	char ctime			[ISODCL (11, 27)]; /* 8.4.26.1 */
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	char mtime			[ISODCL (28, 44)]; /* 8.4.26.1 */
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	char xtime			[ISODCL (45, 61)]; /* 8.4.26.1 */
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	char ftime			[ISODCL (62, 78)]; /* 8.4.26.1 */
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	char recfmt			[ISODCL (79, 79)]; /* 711 */
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	char recattr			[ISODCL (80, 80)]; /* 711 */
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	u_char reclen			[ISODCL (81, 84)]; /* 723 */
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	char system_id			[ISODCL (85, 116)]; /* achars */
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	char system_use			[ISODCL (117, 180)];
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	char version			[ISODCL (181, 181)]; /* 711 */
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	char len_esc			[ISODCL (182, 182)]; /* 711 */
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	char reserved			[ISODCL (183, 246)];
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	u_char len_au			[ISODCL (247, 250)]; /* 723 */
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};
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/* 7.1.1: unsigned char */
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static __inline __unused int
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isonum_711(const u_char *p)
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{
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	return *p;
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}
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/* 7.1.2: signed char */
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static __inline __unused int
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isonum_712(const u_char *p)
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{
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	return (signed char) *p;
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}
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/* 7.2.1: unsigned little-endian 16-bit value.  NOT USED IN KERNEL. */
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static __inline int
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isonum_721(p)
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	u_char *p;
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{
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#if !defined(__STRICT_ALIGNMENT) && (BYTE_ORDER == LITTLE_ENDIAN)
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	return *(u_int16_t *)p;
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#else
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	return *p|((char)p[1] << 8);
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#endif
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}
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/* 7.2.2: unsigned big-endian 16-bit value.  NOT USED IN KERNEL. */
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static __inline int
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isonum_722(p)
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	unsigned char *p;
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{
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#if !defined(__STRICT_ALIGNMENT) && (BYTE_ORDER == BIG_ENDIAN)
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	return *(u_int16_t *)p;
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#else
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	return ((char)*p << 8)|p[1];
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#endif
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}
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/* 7.2.3: unsigned both-endian (little, then big) 16-bit value */
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static __inline int
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isonum_723(u_char *p)
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{
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#if !defined(__STRICT_ALIGNMENT) && \
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    ((BYTE_ORDER == LITTLE_ENDIAN) || (BYTE_ORDER == BIG_ENDIAN))
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#if BYTE_ORDER == LITTLE_ENDIAN
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	return *(u_int16_t *)p;
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#else
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	return *(u_int16_t *)(p + 2);
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#endif
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#else /* __STRICT_ALIGNMENT or weird byte order */
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	return *p|(p[1] << 8);
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#endif
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}
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/* 7.3.1: unsigned little-endian 32-bit value.  NOT USED IN KERNEL. */
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static __inline int
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isonum_731(p)
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	u_char *p;
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{
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#if !defined(__STRICT_ALIGNMENT) && (BYTE_ORDER == LITTLE_ENDIAN)
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	return *(u_int32_t *)p;
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#else
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	return *p|(p[1] << 8)|(p[2] << 16)|(p[3] << 24);
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#endif
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}
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/* 7.3.2: unsigned big-endian 32-bit value.  NOT USED IN KERNEL. */
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static __inline int
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isonum_732(p)
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	unsigned char *p;
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{
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#if !defined(__STRICT_ALIGNMENT) && (BYTE_ORDER == BIG_ENDIAN)
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	return *(u_int32_t *)p;
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#else
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	return (*p << 24)|(p[1] << 16)|(p[2] << 8)|p[3];
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#endif
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}
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/* 7.3.3: unsigned both-endian (little, then big) 32-bit value */
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static __inline int
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isonum_733(u_char *p)
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{
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#if !defined(__STRICT_ALIGNMENT) && \
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    ((BYTE_ORDER == LITTLE_ENDIAN) || (BYTE_ORDER == BIG_ENDIAN))
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#if BYTE_ORDER == LITTLE_ENDIAN
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	return *(u_int32_t *)p;
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#else
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	return *(u_int32_t *)(p + 4);
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#endif
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#else /* __STRICT_ALIGNMENT or weird byte order */
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	return *p|(p[1] << 8)|(p[2] << 16)|(p[3] << 24);
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#endif
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}
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/*
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 * Associated files have a leading '='.
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 */
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#define	ASSOCCHAR	'='
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#endif /* _ISOFS_CD9660_ISO_H_ */