/*-
* Copyright (c) 2009-2012 Michihiro NAKAJIMA
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "archive_platform.h"
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_UTSNAME_H
#include <sys/utsname.h>
#endif
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#include <stdio.h>
#include <stdarg.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <time.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_ZLIB_H
#include <zlib.h>
#endif
#include "archive.h"
#include "archive_endian.h"
#include "archive_entry.h"
#include "archive_entry_locale.h"
#include "archive_private.h"
#include "archive_rb.h"
#include "archive_write_private.h"
#if defined(_WIN32) && !defined(__CYGWIN__)
#define getuid() 0
#define getgid() 0
#endif
/*#define DEBUG 1*/
#ifdef DEBUG
/* To compare to the ISO image file made by mkisofs. */
#define COMPAT_MKISOFS 1
#endif
#define LOGICAL_BLOCK_BITS 11
#define LOGICAL_BLOCK_SIZE 2048
#define PATH_TABLE_BLOCK_SIZE 4096
#define SYSTEM_AREA_BLOCK 16
#define PRIMARY_VOLUME_DESCRIPTOR_BLOCK 1
#define SUPPLEMENTARY_VOLUME_DESCRIPTOR_BLOCK 1
#define BOOT_RECORD_DESCRIPTOR_BLOCK 1
#define VOLUME_DESCRIPTOR_SET_TERMINATOR_BLOCK 1
#define NON_ISO_FILE_SYSTEM_INFORMATION_BLOCK 1
#define RRIP_ER_BLOCK 1
#define PADDING_BLOCK 150
#define FD_1_2M_SIZE (1024 * 1200)
#define FD_1_44M_SIZE (1024 * 1440)
#define FD_2_88M_SIZE (1024 * 2880)
#define MULTI_EXTENT_SIZE (ARCHIVE_LITERAL_LL(1) << 32) /* 4Gi bytes. */
#define MAX_DEPTH 8
#define RR_CE_SIZE 28 /* SUSP "CE" extension size */
#define FILE_FLAG_EXISTENCE 0x01
#define FILE_FLAG_DIRECTORY 0x02
#define FILE_FLAG_ASSOCIATED 0x04
#define FILE_FLAG_RECORD 0x08
#define FILE_FLAG_PROTECTION 0x10
#define FILE_FLAG_MULTI_EXTENT 0x80
static const char rrip_identifier[] =
"RRIP_1991A";
static const char rrip_descriptor[] =
"THE ROCK RIDGE INTERCHANGE PROTOCOL PROVIDES SUPPORT FOR "
"POSIX FILE SYSTEM SEMANTICS";
static const char rrip_source[] =
"PLEASE CONTACT DISC PUBLISHER FOR SPECIFICATION SOURCE. "
"SEE PUBLISHER IDENTIFIER IN PRIMARY VOLUME DESCRIPTOR FOR "
"CONTACT INFORMATION.";
#define RRIP_ER_ID_SIZE (sizeof(rrip_identifier)-1)
#define RRIP_ER_DSC_SIZE (sizeof(rrip_descriptor)-1)
#define RRIP_ER_SRC_SIZE (sizeof(rrip_source)-1)
#define RRIP_ER_SIZE (8 + RRIP_ER_ID_SIZE + \
RRIP_ER_DSC_SIZE + RRIP_ER_SRC_SIZE)
static const unsigned char zisofs_magic[8] = {
0x37, 0xE4, 0x53, 0x96, 0xC9, 0xDB, 0xD6, 0x07
};
#define ZF_HEADER_SIZE 16 /* zisofs header size. */
#define ZF_LOG2_BS 15 /* log2 block size; 32K bytes. */
#define ZF_BLOCK_SIZE (1UL << ZF_LOG2_BS)
/*
* Manage extra records.
*/
struct extr_rec {
int location;
int offset;
unsigned char buf[LOGICAL_BLOCK_SIZE];
struct extr_rec *next;
};
struct ctl_extr_rec {
int use_extr;
unsigned char *bp;
struct isoent *isoent;
unsigned char *ce_ptr;
int cur_len;
int dr_len;
int limit;
int extr_off;
int extr_loc;
};
#define DR_SAFETY RR_CE_SIZE
#define DR_LIMIT (254 - DR_SAFETY)
/*
* The relation of struct isofile and isoent and archive_entry.
*
* Primary volume tree --> struct isoent
* |
* v
* struct isofile --> archive_entry
* ^
* |
* Joliet volume tree --> struct isoent
*
* struct isoent has specific information for volume.
*/
struct isofile {
/* Used for managing struct isofile list. */
struct isofile *allnext;
struct isofile *datanext;
/* Used for managing a hardlinked struct isofile list. */
struct isofile *hlnext;
struct isofile *hardlink_target;
struct archive_entry *entry;
/*
* Used for making a directory tree.
*/
struct archive_string parentdir;
struct archive_string basename;
struct archive_string basename_utf16;
struct archive_string symlink;
int dircnt; /* The number of elements of
* its parent directory */
/*
* Used for a Directory Record.
*/
struct content {
int64_t offset_of_temp;
int64_t size;
int blocks;
uint32_t location;
/*
* One extent equals one content.
* If this entry has multi extent, `next' variable points
* next content data.
*/
struct content *next; /* next content */
} content, *cur_content;
int write_content;
enum {
NO = 0,
BOOT_CATALOG,
BOOT_IMAGE
} boot;
/*
* Used for a zisofs.
*/
struct {
unsigned char header_size;
unsigned char log2_bs;
uint32_t uncompressed_size;
} zisofs;
};
struct isoent {
/* Keep `rbnode' at the first member of struct isoent. */
struct archive_rb_node rbnode;
struct isofile *file;
struct isoent *parent;
/* A list of children.(use chnext) */
struct {
struct isoent *first;
struct isoent **last;
int cnt;
} children;
struct archive_rb_tree rbtree;
/* A list of sub directories.(use drnext) */
struct {
struct isoent *first;
struct isoent **last;
int cnt;
} subdirs;
/* A sorted list of sub directories. */
struct isoent **children_sorted;
/* Used for managing struct isoent list. */
struct isoent *chnext;
struct isoent *drnext;
struct isoent *ptnext;
/*
* Used for making a Directory Record.
*/
int dir_number;
struct {
int vd;
int self;
int parent;
int normal;
} dr_len;
uint32_t dir_location;
int dir_block;
/*
* Identifier:
* on primary, ISO9660 file/directory name.
* on joliet, UCS2 file/directory name.
* ext_off : offset of identifier extension.
* ext_len : length of identifier extension.
* id_len : byte size of identifier.
* on primary, this is ext_off + ext_len + version length.
* on joliet, this is ext_off + ext_len.
* mb_len : length of multibyte-character of identifier.
* on primary, mb_len and id_len are always the same.
* on joliet, mb_len and id_len are different.
*/
char *identifier;
int ext_off;
int ext_len;
int id_len;
int mb_len;
/*
* Used for making a Rockridge extension.
* This is a part of Directory Records.
*/
struct isoent *rr_parent;
struct isoent *rr_child;
/* Extra Record.(which we call in this source file)
* A maximum size of the Directory Record is 254.
* so, if generated RRIP data of a file cannot into a Directory
* Record because of its size, that surplus data relocate this
* Extra Record.
*/
struct {
struct extr_rec *first;
struct extr_rec **last;
struct extr_rec *current;
} extr_rec_list;
int virtual:1;
/* If set to one, this file type is a directory.
* A convenience flag to be used as
* "archive_entry_filetype(isoent->file->entry) == AE_IFDIR".
*/
int dir:1;
};
struct hardlink {
struct archive_rb_node rbnode;
int nlink;
struct {
struct isofile *first;
struct isofile **last;
} file_list;
};
/*
* ISO writer options
*/
struct iso_option {
/*
* Usage : abstract-file=<value>
* Type : string, max 37 bytes
* Default: Not specified
* COMPAT : mkisofs -abstract <value>
*
* Specifies Abstract Filename.
* This file shall be described in the Root Directory
* and containing a abstract statement.
*/
unsigned int abstract_file:1;
#define OPT_ABSTRACT_FILE_DEFAULT 0 /* Not specified */
#define ABSTRACT_FILE_SIZE 37
/*
* Usage : application-id=<value>
* Type : string, max 128 bytes
* Default: Not specified
* COMPAT : mkisofs -A/-appid <value>.
*
* Specifies Application Identifier.
* If the first byte is set to '_'(5F), the remaining
* bytes of this option shall specify an identifier
* for a file containing the identification of the
* application.
* This file shall be described in the Root Directory.
*/
unsigned int application_id:1;
#define OPT_APPLICATION_ID_DEFAULT 0 /* Use default identifier */
#define APPLICATION_IDENTIFIER_SIZE 128
/*
* Usage : !allow-vernum
* Type : boolean
* Default: Enabled
* : Violates the ISO9660 standard if disable.
* COMPAT: mkisofs -N
*
* Allow filenames to use version numbers.
*/
unsigned int allow_vernum:1;
#define OPT_ALLOW_VERNUM_DEFAULT 1 /* Enabled */
/*
* Usage : biblio-file=<value>
* Type : string, max 37 bytes
* Default: Not specified
* COMPAT : mkisofs -biblio <value>
*
* Specifies Bibliographic Filename.
* This file shall be described in the Root Directory
* and containing bibliographic records.
*/
unsigned int biblio_file:1;
#define OPT_BIBLIO_FILE_DEFAULT 0 /* Not specified */
#define BIBLIO_FILE_SIZE 37
/*
* Usage : boot=<value>
* Type : string
* Default: Not specified
* COMPAT : mkisofs -b/-eltorito-boot <value>
*
* Specifies "El Torito" boot image file to make
* a bootable CD.
*/
unsigned int boot:1;
#define OPT_BOOT_DEFAULT 0 /* Not specified */
/*
* Usage : boot-catalog=<value>
* Type : string
* Default: "boot.catalog"
* COMPAT : mkisofs -c/-eltorito-catalog <value>
*
* Specifies a fullpath of El Torito boot catalog.
*/
unsigned int boot_catalog:1;
#define OPT_BOOT_CATALOG_DEFAULT 0 /* Not specified */
/*
* Usage : boot-info-table
* Type : boolean
* Default: Disabled
* COMPAT : mkisofs -boot-info-table
*
* Modify the boot image file specified by `boot'
* option; ISO writer stores boot file information
* into the boot file in ISO image at offset 8
* through offset 64.
*/
unsigned int boot_info_table:1;
#define OPT_BOOT_INFO_TABLE_DEFAULT 0 /* Disabled */
/*
* Usage : boot-load-seg=<value>
* Type : hexadecimal
* Default: Not specified
* COMPAT : mkisofs -boot-load-seg <value>
*
* Specifies a load segment for boot image.
* This is used with no-emulation mode.
*/
unsigned int boot_load_seg:1;
#define OPT_BOOT_LOAD_SEG_DEFAULT 0 /* Not specified */
/*
* Usage : boot-load-size=<value>
* Type : decimal
* Default: Not specified
* COMPAT : mkisofs -boot-load-size <value>
*
* Specifies a sector count for boot image.
* This is used with no-emulation mode.
*/
unsigned int boot_load_size:1;
#define OPT_BOOT_LOAD_SIZE_DEFAULT 0 /* Not specified */
/*
* Usage : boot-type=<boot-media-type>
* : 'no-emulation' : 'no emulation' image
* : 'fd' : floppy disk image
* : 'hard-disk' : hard disk image
* Type : string
* Default: Auto detect
* : We check a size of boot image;
* : If the size is just 1.22M/1.44M/2.88M,
* : we assume boot_type is 'fd';
* : otherwise boot_type is 'no-emulation'.
* COMPAT :
* boot=no-emulation
* mkisofs -no-emul-boot
* boot=fd
* This is a default on the mkisofs.
* boot=hard-disk
* mkisofs -hard-disk-boot
*
* Specifies a type of "El Torito" boot image.
*/
unsigned int boot_type:2;
#define OPT_BOOT_TYPE_AUTO 0 /* auto detect */
#define OPT_BOOT_TYPE_NO_EMU 1 /* ``no emulation'' image */
#define OPT_BOOT_TYPE_FD 2 /* floppy disk image */
#define OPT_BOOT_TYPE_HARD_DISK 3 /* hard disk image */
#define OPT_BOOT_TYPE_DEFAULT OPT_BOOT_TYPE_AUTO
/*
* Usage : compression-level=<value>
* Type : decimal
* Default: Not specified
* COMPAT : NONE
*
* Specifies compression level for option zisofs=direct.
*/
unsigned int compression_level:1;
#define OPT_COMPRESSION_LEVEL_DEFAULT 0 /* Not specified */
/*
* Usage : copyright-file=<value>
* Type : string, max 37 bytes
* Default: Not specified
* COMPAT : mkisofs -copyright <value>
*
* Specifies Copyright Filename.
* This file shall be described in the Root Directory
* and containing a copyright statement.
*/
unsigned int copyright_file:1;
#define OPT_COPYRIGHT_FILE_DEFAULT 0 /* Not specified */
#define COPYRIGHT_FILE_SIZE 37
/*
* Usage : gid=<value>
* Type : decimal
* Default: Not specified
* COMPAT : mkisofs -gid <value>
*
* Specifies a group id to rewrite the group id of all files.
*/
unsigned int gid:1;
#define OPT_GID_DEFAULT 0 /* Not specified */
/*
* Usage : iso-level=[1234]
* Type : decimal
* Default: 1
* COMPAT : mkisofs -iso-level <value>
*
* Specifies ISO9600 Level.
* Level 1: [DEFAULT]
* - limits each file size less than 4Gi bytes;
* - a File Name shall not contain more than eight
* d-characters or eight d1-characters;
* - a File Name Extension shall not contain more than
* three d-characters or three d1-characters;
* - a Directory Identifier shall not contain more
* than eight d-characters or eight d1-characters.
* Level 2:
* - limits each file size less than 4Giga bytes;
* - a File Name shall not contain more than thirty
* d-characters or thirty d1-characters;
* - a File Name Extension shall not contain more than
* thirty d-characters or thirty d1-characters;
* - a Directory Identifier shall not contain more
* than thirty-one d-characters or thirty-one
* d1-characters.
* Level 3:
* - no limit of file size; use multi extent.
* Level 4:
* - this level 4 simulates mkisofs option
* '-iso-level 4';
* - crate a enhanced volume as mkisofs doing;
* - allow a File Name to have leading dot;
* - allow a File Name to have all ASCII letters;
* - allow a File Name to have multiple dots;
* - allow more then 8 depths of directory trees;
* - disable a version number to a File Name;
* - disable a forced period to the tail of a File Name;
* - the maximum length of files and directories is raised to 193.
* if rockridge option is disabled, raised to 207.
*/
unsigned int iso_level:3;
#define OPT_ISO_LEVEL_DEFAULT 1 /* ISO Level 1 */
/*
* Usage : joliet[=long]
* : !joliet
* : Do not generate Joliet Volume and Records.
* : joliet [DEFAULT]
* : Generates Joliet Volume and Directory Records.
* : [COMPAT: mkisofs -J/-joliet]
* : joliet=long
* : The joliet filenames are up to 103 Unicode
* : characters.
* : This option breaks the Joliet specification.
* : [COMPAT: mkisofs -J -joliet-long]
* Type : boolean/string
* Default: Enabled
* COMPAT : mkisofs -J / -joliet-long
*
* Generates Joliet Volume and Directory Records.
*/
unsigned int joliet:2;
#define OPT_JOLIET_DISABLE 0 /* Not generate Joliet Records. */
#define OPT_JOLIET_ENABLE 1 /* Generate Joliet Records. */
#define OPT_JOLIET_LONGNAME 2 /* Use long joliet filenames.*/
#define OPT_JOLIET_DEFAULT OPT_JOLIET_ENABLE
/*
* Usage : !limit-depth
* Type : boolean
* Default: Enabled
* : Violates the ISO9660 standard if disable.
* COMPAT : mkisofs -D/-disable-deep-relocation
*
* The number of levels in hierarchy cannot exceed eight.
*/
unsigned int limit_depth:1;
#define OPT_LIMIT_DEPTH_DEFAULT 1 /* Enabled */
/*
* Usage : !limit-dirs
* Type : boolean
* Default: Enabled
* : Violates the ISO9660 standard if disable.
* COMPAT : mkisofs -no-limit-pathtables
*
* Limits the number of directories less than 65536 due
* to the size of the Parent Directory Number of Path
* Table.
*/
unsigned int limit_dirs:1;
#define OPT_LIMIT_DIRS_DEFAULT 1 /* Enabled */
/*
* Usage : !pad
* Type : boolean
* Default: Enabled
* COMPAT : -pad/-no-pad
*
* Pads the end of the ISO image by null of 300Ki bytes.
*/
unsigned int pad:1;
#define OPT_PAD_DEFAULT 1 /* Enabled */
/*
* Usage : publisher=<value>
* Type : string, max 128 bytes
* Default: Not specified
* COMPAT : mkisofs -publisher <value>
*
* Specifies Publisher Identifier.
* If the first byte is set to '_'(5F), the remaining
* bytes of this option shall specify an identifier
* for a file containing the identification of the user.
* This file shall be described in the Root Directory.
*/
unsigned int publisher:1;
#define OPT_PUBLISHER_DEFAULT 0 /* Not specified */
#define PUBLISHER_IDENTIFIER_SIZE 128
/*
* Usage : rockridge
* : !rockridge
* : disable to generate SUSP and RR records.
* : rockridge
* : the same as 'rockridge=useful'.
* : rockridge=strict
* : generate SUSP and RR records.
* : [COMPAT: mkisofs -R]
* : rockridge=useful [DEFAULT]
* : generate SUSP and RR records.
* : [COMPAT: mkisofs -r]
* : NOTE Our rockridge=useful option does not set a zero
* : to uid and gid, you should use application
* : option such as --gid,--gname,--uid and --uname
* : bsdtar options instead.
* Type : boolean/string
* Default: Enabled as rockridge=useful
* COMPAT : mkisofs -r / -R
*
* Generates SUSP and RR records.
*/
unsigned int rr:2;
#define OPT_RR_DISABLED 0
#define OPT_RR_STRICT 1
#define OPT_RR_USEFUL 2
#define OPT_RR_DEFAULT OPT_RR_USEFUL
/*
* Usage : volume-id=<value>
* Type : string, max 32 bytes
* Default: Not specified
* COMPAT : mkisofs -V <value>
*
* Specifies Volume Identifier.
*/
unsigned int volume_id:1;
#define OPT_VOLUME_ID_DEFAULT 0 /* Use default identifier */
#define VOLUME_IDENTIFIER_SIZE 32
/*
* Usage : !zisofs [DEFAULT]
* : Disable to generate RRIP 'ZF' extension.
* : zisofs
* : Make files zisofs file and generate RRIP 'ZF'
* : extension. So you do not need mkzftree utility
* : for making zisofs.
* : When the file size is less than one Logical Block
* : size, that file will not zisofs'ed since it does
* : reduce an ISO-image size.
* :
* : When you specify option 'boot=<boot-image>', that
* : 'boot-image' file won't be converted to zisofs file.
* Type : boolean
* Default: Disabled
*
* Generates RRIP 'ZF' System Use Entry.
*/
unsigned int zisofs:1;
#define OPT_ZISOFS_DISABLED 0
#define OPT_ZISOFS_DIRECT 1
#define OPT_ZISOFS_DEFAULT OPT_ZISOFS_DISABLED
};
struct iso9660 {
/* The creation time of ISO image. */
time_t birth_time;
/* A file stream of a temporary file, which file contents
* save to until ISO image can be created. */
int temp_fd;
struct isofile *cur_file;
struct isoent *cur_dirent;
struct archive_string cur_dirstr;
uint64_t bytes_remaining;
int need_multi_extent;
/* Temporary string buffer for Joliet extension. */
struct archive_string utf16be;
struct archive_string mbs;
struct archive_string_conv *sconv_to_utf16be;
struct archive_string_conv *sconv_from_utf16be;
/* A list of all of struct isofile entries. */
struct {
struct isofile *first;
struct isofile **last;
} all_file_list;
/* A list of struct isofile entries which have its
* contents and are not a directory, a hardlinked file
* and a symlink file. */
struct {
struct isofile *first;
struct isofile **last;
} data_file_list;
/* Used for managing to find hardlinking files. */
struct archive_rb_tree hardlink_rbtree;
/* Used for making the Path Table Record. */
struct vdd {
/* the root of entry tree. */
struct isoent *rootent;
enum vdd_type {
VDD_PRIMARY,
VDD_JOLIET,
VDD_ENHANCED
} vdd_type;
struct path_table {
struct isoent *first;
struct isoent **last;
struct isoent **sorted;
int cnt;
} *pathtbl;
int max_depth;
int path_table_block;
int path_table_size;
int location_type_L_path_table;
int location_type_M_path_table;
int total_dir_block;
} primary, joliet;
/* Used for making a Volume Descriptor. */
int volume_space_size;
int volume_sequence_number;
int total_file_block;
struct archive_string volume_identifier;
struct archive_string publisher_identifier;
struct archive_string data_preparer_identifier;
struct archive_string application_identifier;
struct archive_string copyright_file_identifier;
struct archive_string abstract_file_identifier;
struct archive_string bibliographic_file_identifier;
/* Used for making rockridge extensions. */
int location_rrip_er;
/* Used for making zisofs. */
struct {
int detect_magic:1;
int making:1;
int allzero:1;
unsigned char magic_buffer[64];
int magic_cnt;
#ifdef HAVE_ZLIB_H
/*
* Copy a compressed file to iso9660.zisofs.temp_fd
* and also copy a uncompressed file(original file) to
* iso9660.temp_fd . If the number of logical block
* of the compressed file is less than the number of
* logical block of the uncompressed file, use it and
* remove the copy of the uncompressed file.
* but if not, we use uncompressed file and remove
* the copy of the compressed file.
*/
uint32_t *block_pointers;
size_t block_pointers_allocated;
int block_pointers_cnt;
int block_pointers_idx;
int64_t total_size;
int64_t block_offset;
z_stream stream;
int stream_valid;
int64_t remaining;
int compression_level;
#endif
} zisofs;
struct isoent *directories_too_deep;
int dircnt_max;
/* Write buffer. */
#define wb_buffmax() (LOGICAL_BLOCK_SIZE * 32)
#define wb_remaining(a) (((struct iso9660 *)(a)->format_data)->wbuff_remaining)
#define wb_offset(a) (((struct iso9660 *)(a)->format_data)->wbuff_offset \
+ wb_buffmax() - wb_remaining(a))
unsigned char wbuff[LOGICAL_BLOCK_SIZE * 32];
size_t wbuff_remaining;
enum {
WB_TO_STREAM,
WB_TO_TEMP
} wbuff_type;
int64_t wbuff_offset;
int64_t wbuff_written;
int64_t wbuff_tail;
/* 'El Torito' boot data. */
struct {
/* boot catalog file */
struct archive_string catalog_filename;
struct isoent *catalog;
/* boot image file */
struct archive_string boot_filename;
struct isoent *boot;
unsigned char platform_id;
#define BOOT_PLATFORM_X86 0
#define BOOT_PLATFORM_PPC 1
#define BOOT_PLATFORM_MAC 2
struct archive_string id;
unsigned char media_type;
#define BOOT_MEDIA_NO_EMULATION 0
#define BOOT_MEDIA_1_2M_DISKETTE 1
#define BOOT_MEDIA_1_44M_DISKETTE 2
#define BOOT_MEDIA_2_88M_DISKETTE 3
#define BOOT_MEDIA_HARD_DISK 4
unsigned char system_type;
uint16_t boot_load_seg;
uint16_t boot_load_size;
#define BOOT_LOAD_SIZE 4
} el_torito;
struct iso_option opt;
};
/*
* Types of Volume Descriptor
*/
enum VD_type {
VDT_BOOT_RECORD=0, /* Boot Record Volume Descriptor */
VDT_PRIMARY=1, /* Primary Volume Descriptor */
VDT_SUPPLEMENTARY=2, /* Supplementary Volume Descriptor */
VDT_TERMINATOR=255 /* Volume Descriptor Set Terminator */
};
/*
* Types of Directory Record
*/
enum dir_rec_type {
DIR_REC_VD, /* Stored in Volume Descriptor. */
DIR_REC_SELF, /* Stored as Current Directory. */
DIR_REC_PARENT, /* Stored as Parent Directory. */
DIR_REC_NORMAL /* Stored as Child. */
};
/*
* Kinds of Volume Descriptor Character
*/
enum vdc {
VDC_STD,
VDC_LOWERCASE,
VDC_UCS2,
VDC_UCS2_DIRECT
};
/*
* IDentifier Resolver.
* Used for resolving duplicated filenames.
*/
struct idr {
struct idrent {
struct archive_rb_node rbnode;
/* Used in wait_list. */
struct idrent *wnext;
struct idrent *avail;
struct isoent *isoent;
int weight;
int noff;
int rename_num;
} *idrent_pool;
struct archive_rb_tree rbtree;
struct {
struct idrent *first;
struct idrent **last;
} wait_list;
int pool_size;
int pool_idx;
int num_size;
int null_size;
char char_map[0x80];
};
enum char_type {
A_CHAR,
D_CHAR
};
static int iso9660_options(struct archive_write *,
const char *, const char *);
static int iso9660_write_header(struct archive_write *,
struct archive_entry *);
static ssize_t iso9660_write_data(struct archive_write *,
const void *, size_t);
static int iso9660_finish_entry(struct archive_write *);
static int iso9660_close(struct archive_write *);
static int iso9660_free(struct archive_write *);
static void get_system_identitier(char *, size_t);
static void set_str(unsigned char *, const char *, size_t, char,
const char *);
static inline int joliet_allowed_char(unsigned char, unsigned char);
static int set_str_utf16be(struct archive_write *, unsigned char *,
const char *, size_t, uint16_t, enum vdc);
static int set_str_a_characters_bp(struct archive_write *,
unsigned char *, int, int, const char *, enum vdc);
static int set_str_d_characters_bp(struct archive_write *,
unsigned char *, int, int, const char *, enum vdc);
static void set_VD_bp(unsigned char *, enum VD_type, unsigned char);
static inline void set_unused_field_bp(unsigned char *, int, int);
static unsigned char *extra_open_record(unsigned char *, int,
struct isoent *, struct ctl_extr_rec *);
static void extra_close_record(struct ctl_extr_rec *, int);
static unsigned char * extra_next_record(struct ctl_extr_rec *, int);
static unsigned char *extra_get_record(struct isoent *, int *, int *, int *);
static void extra_tell_used_size(struct ctl_extr_rec *, int);
static int extra_setup_location(struct isoent *, int);
static int set_directory_record_rr(unsigned char *, int,
struct isoent *, struct iso9660 *, enum dir_rec_type);
static int set_directory_record(unsigned char *, size_t,
struct isoent *, struct iso9660 *, enum dir_rec_type,
enum vdd_type);
static inline int get_dir_rec_size(struct iso9660 *, struct isoent *,
enum dir_rec_type, enum vdd_type);
static inline unsigned char *wb_buffptr(struct archive_write *);
static int wb_write_out(struct archive_write *);
static int wb_consume(struct archive_write *, size_t);
#ifdef HAVE_ZLIB_H
static int wb_set_offset(struct archive_write *, int64_t);
#endif
static int write_null(struct archive_write *, size_t);
static int write_VD_terminator(struct archive_write *);
static int set_file_identifier(unsigned char *, int, int, enum vdc,
struct archive_write *, struct vdd *,
struct archive_string *, const char *, int,
enum char_type);
static int write_VD(struct archive_write *, struct vdd *);
static int write_VD_boot_record(struct archive_write *);
static int write_information_block(struct archive_write *);
static int write_path_table(struct archive_write *, int,
struct vdd *);
static int write_directory_descriptors(struct archive_write *,
struct vdd *);
static int write_file_descriptors(struct archive_write *);
static int write_rr_ER(struct archive_write *);
static void calculate_path_table_size(struct vdd *);
static void isofile_init_entry_list(struct iso9660 *);
static void isofile_add_entry(struct iso9660 *, struct isofile *);
static void isofile_free_all_entries(struct iso9660 *);
static void isofile_init_entry_data_file_list(struct iso9660 *);
static void isofile_add_data_file(struct iso9660 *, struct isofile *);
static struct isofile * isofile_new(struct archive_write *,
struct archive_entry *);
static void isofile_free(struct isofile *);
static int isofile_gen_utility_names(struct archive_write *,
struct isofile *);
static int isofile_register_hardlink(struct archive_write *,
struct isofile *);
static void isofile_connect_hardlink_files(struct iso9660 *);
static void isofile_init_hardlinks(struct iso9660 *);
static void isofile_free_hardlinks(struct iso9660 *);
static struct isoent *isoent_new(struct isofile *);
static int isoent_clone_tree(struct archive_write *,
struct isoent **, struct isoent *);
static void _isoent_free(struct isoent *isoent);
static void isoent_free_all(struct isoent *);
static struct isoent * isoent_create_virtual_dir(struct archive_write *,
struct iso9660 *, const char *);
static int isoent_cmp_node(const struct archive_rb_node *,
const struct archive_rb_node *);
static int isoent_cmp_key(const struct archive_rb_node *,
const void *);
static int isoent_add_child_head(struct isoent *, struct isoent *);
static int isoent_add_child_tail(struct isoent *, struct isoent *);
static void isoent_remove_child(struct isoent *, struct isoent *);
static void isoent_setup_directory_location(struct iso9660 *,
int, struct vdd *);
static void isoent_setup_file_location(struct iso9660 *, int);
static int get_path_component(char *, size_t, const char *);
static int isoent_tree(struct archive_write *, struct isoent **);
static struct isoent *isoent_find_child(struct isoent *, const char *);
static struct isoent *isoent_find_entry(struct isoent *, const char *);
static void idr_relaxed_filenames(char *);
static void idr_init(struct iso9660 *, struct vdd *, struct idr *);
static void idr_cleanup(struct idr *);
static int idr_ensure_poolsize(struct archive_write *, struct idr *,
int);
static int idr_start(struct archive_write *, struct idr *,
int, int, int, int, const struct archive_rb_tree_ops *);
static void idr_register(struct idr *, struct isoent *, int,
int);
static void idr_extend_identifier(struct idrent *, int, int);
static void idr_resolve(struct idr *, void (*)(unsigned char *, int));
static void idr_set_num(unsigned char *, int);
static void idr_set_num_beutf16(unsigned char *, int);
static int isoent_gen_iso9660_identifier(struct archive_write *,
struct isoent *, struct idr *);
static int isoent_gen_joliet_identifier(struct archive_write *,
struct isoent *, struct idr *);
static int isoent_cmp_iso9660_identifier(const struct isoent *,
const struct isoent *);
static int isoent_cmp_node_iso9660(const struct archive_rb_node *,
const struct archive_rb_node *);
static int isoent_cmp_key_iso9660(const struct archive_rb_node *,
const void *);
static int isoent_cmp_joliet_identifier(const struct isoent *,
const struct isoent *);
static int isoent_cmp_node_joliet(const struct archive_rb_node *,
const struct archive_rb_node *);
static int isoent_cmp_key_joliet(const struct archive_rb_node *,
const void *);
static inline void path_table_add_entry(struct path_table *, struct isoent *);
static inline struct isoent * path_table_last_entry(struct path_table *);
static int isoent_make_path_table(struct archive_write *);
static int isoent_find_out_boot_file(struct archive_write *,
struct isoent *);
static int isoent_create_boot_catalog(struct archive_write *,
struct isoent *);
static size_t fd_boot_image_size(int);
static int make_boot_catalog(struct archive_write *);
static int setup_boot_information(struct archive_write *);
static int zisofs_init(struct archive_write *, struct isofile *);
static void zisofs_detect_magic(struct archive_write *,
const void *, size_t);
static int zisofs_write_to_temp(struct archive_write *,
const void *, size_t);
static int zisofs_finish_entry(struct archive_write *);
static int zisofs_rewind_boot_file(struct archive_write *);
static int zisofs_free(struct archive_write *);
int
archive_write_set_format_iso9660(struct archive *_a)
{
struct archive_write *a = (struct archive_write *)_a;
struct iso9660 *iso9660;
archive_check_magic(_a, ARCHIVE_WRITE_MAGIC,
ARCHIVE_STATE_NEW, "archive_write_set_format_iso9660");
/* If another format was already registered, unregister it. */
if (a->format_free != NULL)
(a->format_free)(a);
iso9660 = calloc(1, sizeof(*iso9660));
if (iso9660 == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate iso9660 data");
return (ARCHIVE_FATAL);
}
iso9660->birth_time = 0;
iso9660->temp_fd = -1;
iso9660->cur_file = NULL;
iso9660->primary.max_depth = 0;
iso9660->primary.vdd_type = VDD_PRIMARY;
iso9660->primary.pathtbl = NULL;
iso9660->joliet.rootent = NULL;
iso9660->joliet.max_depth = 0;
iso9660->joliet.vdd_type = VDD_JOLIET;
iso9660->joliet.pathtbl = NULL;
isofile_init_entry_list(iso9660);
isofile_init_entry_data_file_list(iso9660);
isofile_init_hardlinks(iso9660);
iso9660->directories_too_deep = NULL;
iso9660->dircnt_max = 1;
iso9660->wbuff_remaining = wb_buffmax();
iso9660->wbuff_type = WB_TO_TEMP;
iso9660->wbuff_offset = 0;
iso9660->wbuff_written = 0;
iso9660->wbuff_tail = 0;
archive_string_init(&(iso9660->utf16be));
archive_string_init(&(iso9660->mbs));
/*
* Init Identifiers used for PVD and SVD.
*/
archive_string_init(&(iso9660->volume_identifier));
archive_strcpy(&(iso9660->volume_identifier), "CDROM");
archive_string_init(&(iso9660->publisher_identifier));
archive_string_init(&(iso9660->data_preparer_identifier));
archive_string_init(&(iso9660->application_identifier));
archive_strcpy(&(iso9660->application_identifier),
archive_version_string());
archive_string_init(&(iso9660->copyright_file_identifier));
archive_string_init(&(iso9660->abstract_file_identifier));
archive_string_init(&(iso9660->bibliographic_file_identifier));
/*
* Init El Torito bootable CD variables.
*/
archive_string_init(&(iso9660->el_torito.catalog_filename));
iso9660->el_torito.catalog = NULL;
/* Set default file name of boot catalog */
archive_strcpy(&(iso9660->el_torito.catalog_filename),
"boot.catalog");
archive_string_init(&(iso9660->el_torito.boot_filename));
iso9660->el_torito.boot = NULL;
iso9660->el_torito.platform_id = BOOT_PLATFORM_X86;
archive_string_init(&(iso9660->el_torito.id));
iso9660->el_torito.boot_load_seg = 0;
iso9660->el_torito.boot_load_size = BOOT_LOAD_SIZE;
/*
* Init zisofs variables.
*/
#ifdef HAVE_ZLIB_H
iso9660->zisofs.block_pointers = NULL;
iso9660->zisofs.block_pointers_allocated = 0;
iso9660->zisofs.stream_valid = 0;
iso9660->zisofs.compression_level = 9;
memset(&(iso9660->zisofs.stream), 0,
sizeof(iso9660->zisofs.stream));
#endif
/*
* Set default value of iso9660 options.
*/
iso9660->opt.abstract_file = OPT_ABSTRACT_FILE_DEFAULT;
iso9660->opt.application_id = OPT_APPLICATION_ID_DEFAULT;
iso9660->opt.allow_vernum = OPT_ALLOW_VERNUM_DEFAULT;
iso9660->opt.biblio_file = OPT_BIBLIO_FILE_DEFAULT;
iso9660->opt.boot = OPT_BOOT_DEFAULT;
iso9660->opt.boot_catalog = OPT_BOOT_CATALOG_DEFAULT;
iso9660->opt.boot_info_table = OPT_BOOT_INFO_TABLE_DEFAULT;
iso9660->opt.boot_load_seg = OPT_BOOT_LOAD_SEG_DEFAULT;
iso9660->opt.boot_load_size = OPT_BOOT_LOAD_SIZE_DEFAULT;
iso9660->opt.boot_type = OPT_BOOT_TYPE_DEFAULT;
iso9660->opt.compression_level = OPT_COMPRESSION_LEVEL_DEFAULT;
iso9660->opt.copyright_file = OPT_COPYRIGHT_FILE_DEFAULT;
iso9660->opt.iso_level = OPT_ISO_LEVEL_DEFAULT;
iso9660->opt.joliet = OPT_JOLIET_DEFAULT;
iso9660->opt.limit_depth = OPT_LIMIT_DEPTH_DEFAULT;
iso9660->opt.limit_dirs = OPT_LIMIT_DIRS_DEFAULT;
iso9660->opt.pad = OPT_PAD_DEFAULT;
iso9660->opt.publisher = OPT_PUBLISHER_DEFAULT;
iso9660->opt.rr = OPT_RR_DEFAULT;
iso9660->opt.volume_id = OPT_VOLUME_ID_DEFAULT;
iso9660->opt.zisofs = OPT_ZISOFS_DEFAULT;
/* Create the root directory. */
iso9660->primary.rootent =
isoent_create_virtual_dir(a, iso9660, "");
if (iso9660->primary.rootent == NULL) {
free(iso9660);
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
iso9660->primary.rootent->parent = iso9660->primary.rootent;
iso9660->cur_dirent = iso9660->primary.rootent;
archive_string_init(&(iso9660->cur_dirstr));
archive_string_ensure(&(iso9660->cur_dirstr), 1);
iso9660->cur_dirstr.s[0] = 0;
iso9660->sconv_to_utf16be = NULL;
iso9660->sconv_from_utf16be = NULL;
a->format_data = iso9660;
a->format_name = "iso9660";
a->format_options = iso9660_options;
a->format_write_header = iso9660_write_header;
a->format_write_data = iso9660_write_data;
a->format_finish_entry = iso9660_finish_entry;
a->format_close = iso9660_close;
a->format_free = iso9660_free;
a->archive.archive_format = ARCHIVE_FORMAT_ISO9660;
a->archive.archive_format_name = "ISO9660";
return (ARCHIVE_OK);
}
static int
get_str_opt(struct archive_write *a, struct archive_string *s,
size_t maxsize, const char *key, const char *value)
{
if (strlen(value) > maxsize) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Value is longer than %zu characters "
"for option ``%s''", maxsize, key);
return (ARCHIVE_FATAL);
}
archive_strcpy(s, value);
return (ARCHIVE_OK);
}
static int
get_num_opt(struct archive_write *a, int *num, int high, int low,
const char *key, const char *value)
{
const char *p = value;
int data = 0;
int neg = 0;
if (p == NULL) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Invalid value(empty) for option ``%s''", key);
return (ARCHIVE_FATAL);
}
if (*p == '-') {
neg = 1;
p++;
}
while (*p) {
if (*p >= '0' && *p <= '9')
data = data * 10 + *p - '0';
else {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Invalid value for option ``%s''", key);
return (ARCHIVE_FATAL);
}
if (data > high) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Invalid value(over %d) for "
"option ``%s''", high, key);
return (ARCHIVE_FATAL);
}
if (data < low) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Invalid value(under %d) for "
"option ``%s''", low, key);
return (ARCHIVE_FATAL);
}
p++;
}
if (neg)
data *= -1;
*num = data;
return (ARCHIVE_OK);
}
static int
iso9660_options(struct archive_write *a, const char *key, const char *value)
{
struct iso9660 *iso9660 = a->format_data;
const char *p;
int r;
switch (key[0]) {
case 'a':
if (strcmp(key, "abstract-file") == 0) {
r = get_str_opt(a,
&(iso9660->abstract_file_identifier),
ABSTRACT_FILE_SIZE, key, value);
iso9660->opt.abstract_file = r == ARCHIVE_OK;
return (r);
}
if (strcmp(key, "application-id") == 0) {
r = get_str_opt(a,
&(iso9660->application_identifier),
APPLICATION_IDENTIFIER_SIZE, key, value);
iso9660->opt.application_id = r == ARCHIVE_OK;
return (r);
}
if (strcmp(key, "allow-vernum") == 0) {
iso9660->opt.allow_vernum = value != NULL;
return (ARCHIVE_OK);
}
break;
case 'b':
if (strcmp(key, "biblio-file") == 0) {
r = get_str_opt(a,
&(iso9660->bibliographic_file_identifier),
BIBLIO_FILE_SIZE, key, value);
iso9660->opt.biblio_file = r == ARCHIVE_OK;
return (r);
}
if (strcmp(key, "boot") == 0) {
if (value == NULL)
iso9660->opt.boot = 0;
else {
iso9660->opt.boot = 1;
archive_strcpy(
&(iso9660->el_torito.boot_filename),
value);
}
return (ARCHIVE_OK);
}
if (strcmp(key, "boot-catalog") == 0) {
r = get_str_opt(a,
&(iso9660->el_torito.catalog_filename),
1024, key, value);
iso9660->opt.boot_catalog = r == ARCHIVE_OK;
return (r);
}
if (strcmp(key, "boot-info-table") == 0) {
iso9660->opt.boot_info_table = value != NULL;
return (ARCHIVE_OK);
}
if (strcmp(key, "boot-load-seg") == 0) {
uint32_t seg;
iso9660->opt.boot_load_seg = 0;
if (value == NULL)
goto invalid_value;
seg = 0;
p = value;
if (p[0] == '0' && (p[1] == 'x' || p[1] == 'X'))
p += 2;
while (*p) {
if (seg)
seg <<= 4;
if (*p >= 'A' && *p <= 'F')
seg += *p - 'A' + 0x0a;
else if (*p >= 'a' && *p <= 'f')
seg += *p - 'a' + 0x0a;
else if (*p >= '0' && *p <= '9')
seg += *p - '0';
else
goto invalid_value;
if (seg > 0xffff) {
archive_set_error(&a->archive,
ARCHIVE_ERRNO_MISC,
"Invalid value(over 0xffff) for "
"option ``%s''", key);
return (ARCHIVE_FATAL);
}
p++;
}
iso9660->el_torito.boot_load_seg = (uint16_t)seg;
iso9660->opt.boot_load_seg = 1;
return (ARCHIVE_OK);
}
if (strcmp(key, "boot-load-size") == 0) {
int num = 0;
r = get_num_opt(a, &num, 0xffff, 1, key, value);
iso9660->opt.boot_load_size = r == ARCHIVE_OK;
if (r != ARCHIVE_OK)
return (ARCHIVE_FATAL);
iso9660->el_torito.boot_load_size = (uint16_t)num;
return (ARCHIVE_OK);
}
if (strcmp(key, "boot-type") == 0) {
if (value == NULL)
goto invalid_value;
if (strcmp(value, "no-emulation") == 0)
iso9660->opt.boot_type = OPT_BOOT_TYPE_NO_EMU;
else if (strcmp(value, "fd") == 0)
iso9660->opt.boot_type = OPT_BOOT_TYPE_FD;
else if (strcmp(value, "hard-disk") == 0)
iso9660->opt.boot_type = OPT_BOOT_TYPE_HARD_DISK;
else
goto invalid_value;
return (ARCHIVE_OK);
}
break;
case 'c':
if (strcmp(key, "compression-level") == 0) {
#ifdef HAVE_ZLIB_H
if (value == NULL ||
!(value[0] >= '0' && value[0] <= '9') ||
value[1] != '\0')
goto invalid_value;
iso9660->zisofs.compression_level = value[0] - '0';
iso9660->opt.compression_level = 1;
return (ARCHIVE_OK);
#else
archive_set_error(&a->archive,
ARCHIVE_ERRNO_MISC,
"Option ``%s'' "
"is not supported on this platform.", key);
return (ARCHIVE_FATAL);
#endif
}
if (strcmp(key, "copyright-file") == 0) {
r = get_str_opt(a,
&(iso9660->copyright_file_identifier),
COPYRIGHT_FILE_SIZE, key, value);
iso9660->opt.copyright_file = r == ARCHIVE_OK;
return (r);
}
#ifdef DEBUG
/* Specifies Volume creation date and time;
* year(4),month(2),day(2),hour(2),minute(2),second(2).
* e.g. "20090929033757"
*/
if (strcmp(key, "creation") == 0) {
struct tm tm;
char buf[5];
p = value;
if (p == NULL || strlen(p) < 14)
goto invalid_value;
memset(&tm, 0, sizeof(tm));
memcpy(buf, p, 4); buf[4] = '\0'; p += 4;
tm.tm_year = strtol(buf, NULL, 10) - 1900;
memcpy(buf, p, 2); buf[2] = '\0'; p += 2;
tm.tm_mon = strtol(buf, NULL, 10) - 1;
memcpy(buf, p, 2); buf[2] = '\0'; p += 2;
tm.tm_mday = strtol(buf, NULL, 10);
memcpy(buf, p, 2); buf[2] = '\0'; p += 2;
tm.tm_hour = strtol(buf, NULL, 10);
memcpy(buf, p, 2); buf[2] = '\0'; p += 2;
tm.tm_min = strtol(buf, NULL, 10);
memcpy(buf, p, 2); buf[2] = '\0';
tm.tm_sec = strtol(buf, NULL, 10);
iso9660->birth_time = mktime(&tm);
return (ARCHIVE_OK);
}
#endif
break;
case 'i':
if (strcmp(key, "iso-level") == 0) {
if (value != NULL && value[1] == '\0' &&
(value[0] >= '1' && value[0] <= '4')) {
iso9660->opt.iso_level = value[0]-'0';
return (ARCHIVE_OK);
}
goto invalid_value;
}
break;
case 'j':
if (strcmp(key, "joliet") == 0) {
if (value == NULL)
iso9660->opt.joliet = OPT_JOLIET_DISABLE;
else if (strcmp(value, "1") == 0)
iso9660->opt.joliet = OPT_JOLIET_ENABLE;
else if (strcmp(value, "long") == 0)
iso9660->opt.joliet = OPT_JOLIET_LONGNAME;
else
goto invalid_value;
return (ARCHIVE_OK);
}
break;
case 'l':
if (strcmp(key, "limit-depth") == 0) {
iso9660->opt.limit_depth = value != NULL;
return (ARCHIVE_OK);
}
if (strcmp(key, "limit-dirs") == 0) {
iso9660->opt.limit_dirs = value != NULL;
return (ARCHIVE_OK);
}
break;
case 'p':
if (strcmp(key, "pad") == 0) {
iso9660->opt.pad = value != NULL;
return (ARCHIVE_OK);
}
if (strcmp(key, "publisher") == 0) {
r = get_str_opt(a,
&(iso9660->publisher_identifier),
PUBLISHER_IDENTIFIER_SIZE, key, value);
iso9660->opt.publisher = r == ARCHIVE_OK;
return (r);
}
break;
case 'r':
if (strcmp(key, "rockridge") == 0 ||
strcmp(key, "Rockridge") == 0) {
if (value == NULL)
iso9660->opt.rr = OPT_RR_DISABLED;
else if (strcmp(value, "1") == 0)
iso9660->opt.rr = OPT_RR_USEFUL;
else if (strcmp(value, "strict") == 0)
iso9660->opt.rr = OPT_RR_STRICT;
else if (strcmp(value, "useful") == 0)
iso9660->opt.rr = OPT_RR_USEFUL;
else
goto invalid_value;
return (ARCHIVE_OK);
}
break;
case 'v':
if (strcmp(key, "volume-id") == 0) {
r = get_str_opt(a, &(iso9660->volume_identifier),
VOLUME_IDENTIFIER_SIZE, key, value);
iso9660->opt.volume_id = r == ARCHIVE_OK;
return (r);
}
break;
case 'z':
if (strcmp(key, "zisofs") == 0) {
if (value == NULL)
iso9660->opt.zisofs = OPT_ZISOFS_DISABLED;
else {
#ifdef HAVE_ZLIB_H
iso9660->opt.zisofs = OPT_ZISOFS_DIRECT;
#else
archive_set_error(&a->archive,
ARCHIVE_ERRNO_MISC,
"``zisofs'' "
"is not supported on this platform.");
return (ARCHIVE_FATAL);
#endif
}
return (ARCHIVE_OK);
}
break;
}
/* Note: The "warn" return is just to inform the options
* supervisor that we didn't handle it. It will generate
* a suitable error if no one used this option. */
return (ARCHIVE_WARN);
invalid_value:
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Invalid value for option ``%s''", key);
return (ARCHIVE_FAILED);
}
static int
iso9660_write_header(struct archive_write *a, struct archive_entry *entry)
{
struct iso9660 *iso9660;
struct isofile *file;
struct isoent *isoent;
int r, ret = ARCHIVE_OK;
iso9660 = a->format_data;
iso9660->cur_file = NULL;
iso9660->bytes_remaining = 0;
iso9660->need_multi_extent = 0;
if (archive_entry_filetype(entry) == AE_IFLNK
&& iso9660->opt.rr == OPT_RR_DISABLED) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Ignore symlink file.");
iso9660->cur_file = NULL;
return (ARCHIVE_WARN);
}
if (archive_entry_filetype(entry) == AE_IFREG &&
archive_entry_size(entry) >= MULTI_EXTENT_SIZE) {
if (iso9660->opt.iso_level < 3) {
archive_set_error(&a->archive,
ARCHIVE_ERRNO_MISC,
"Ignore over %lld bytes file. "
"This file too large.",
MULTI_EXTENT_SIZE);
iso9660->cur_file = NULL;
return (ARCHIVE_WARN);
}
iso9660->need_multi_extent = 1;
}
file = isofile_new(a, entry);
if (file == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate data");
return (ARCHIVE_FATAL);
}
r = isofile_gen_utility_names(a, file);
if (r < ARCHIVE_WARN) {
isofile_free(file);
return (r);
}
else if (r < ret)
ret = r;
/*
* Ignore a path which looks like the top of directory name
* since we have already made the root directory of an ISO image.
*/
if (archive_strlen(&(file->parentdir)) == 0 &&
archive_strlen(&(file->basename)) == 0) {
isofile_free(file);
return (r);
}
isofile_add_entry(iso9660, file);
isoent = isoent_new(file);
if (isoent == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate data");
return (ARCHIVE_FATAL);
}
if (isoent->file->dircnt > iso9660->dircnt_max)
iso9660->dircnt_max = isoent->file->dircnt;
/* Add the current file into tree */
r = isoent_tree(a, &isoent);
if (r != ARCHIVE_OK)
return (r);
/* If there is the same file in tree and
* the current file is older than the file in tree.
* So we don't need the current file data anymore. */
if (isoent->file != file)
return (ARCHIVE_OK);
/* Non regular files contents are unneeded to be saved to
* temporary files. */
if (archive_entry_filetype(file->entry) != AE_IFREG)
return (ret);
/*
* Set the current file to cur_file to read its contents.
*/
iso9660->cur_file = file;
if (archive_entry_nlink(file->entry) > 1) {
r = isofile_register_hardlink(a, file);
if (r != ARCHIVE_OK)
return (ARCHIVE_FATAL);
}
/*
* Prepare to save the contents of the file.
*/
if (iso9660->temp_fd < 0) {
iso9660->temp_fd = __archive_mktemp(NULL);
if (iso9660->temp_fd < 0) {
archive_set_error(&a->archive, errno,
"Couldn't create temporary file");
return (ARCHIVE_FATAL);
}
}
/* Save an offset of current file in temporary file. */
file->content.offset_of_temp = wb_offset(a);
file->cur_content = &(file->content);
r = zisofs_init(a, file);
if (r < ret)
ret = r;
iso9660->bytes_remaining = archive_entry_size(file->entry);
return (ret);
}
static int
write_to_temp(struct archive_write *a, const void *buff, size_t s)
{
struct iso9660 *iso9660 = a->format_data;
ssize_t written;
const unsigned char *b;
b = (const unsigned char *)buff;
while (s) {
written = write(iso9660->temp_fd, b, s);
if (written < 0) {
archive_set_error(&a->archive, errno,
"Can't write to temporary file");
return (ARCHIVE_FATAL);
}
s -= written;
b += written;
}
return (ARCHIVE_OK);
}
static int
wb_write_to_temp(struct archive_write *a, const void *buff, size_t s)
{
const char *xp = buff;
size_t xs = s;
/*
* If a written data size is big enough to use system-call
* and there is no waiting data, this calls write_to_temp() in
* order to reduce a extra memory copy.
*/
if (wb_remaining(a) == wb_buffmax() && s > (1024 * 16)) {
struct iso9660 *iso9660 = (struct iso9660 *)a->format_data;
xs = s % LOGICAL_BLOCK_SIZE;
iso9660->wbuff_offset += s - xs;
if (write_to_temp(a, buff, s - xs) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
if (xs == 0)
return (ARCHIVE_OK);
xp += s - xs;
}
while (xs) {
size_t size = xs;
if (size > wb_remaining(a))
size = wb_remaining(a);
memcpy(wb_buffptr(a), xp, size);
if (wb_consume(a, size) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
xs -= size;
xp += size;
}
return (ARCHIVE_OK);
}
static int
wb_write_padding_to_temp(struct archive_write *a, int64_t csize)
{
size_t ns;
int ret;
ns = (size_t)(csize % LOGICAL_BLOCK_SIZE);
if (ns != 0)
ret = write_null(a, LOGICAL_BLOCK_SIZE - ns);
else
ret = ARCHIVE_OK;
return (ret);
}
static ssize_t
write_iso9660_data(struct archive_write *a, const void *buff, size_t s)
{
struct iso9660 *iso9660 = a->format_data;
size_t ws;
if (iso9660->temp_fd < 0) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Couldn't create temporary file");
return (ARCHIVE_FATAL);
}
ws = s;
if (iso9660->need_multi_extent &&
(iso9660->cur_file->cur_content->size + ws) >=
(MULTI_EXTENT_SIZE - LOGICAL_BLOCK_SIZE)) {
struct content *con;
size_t ts;
ts = (size_t)(MULTI_EXTENT_SIZE - LOGICAL_BLOCK_SIZE -
iso9660->cur_file->cur_content->size);
if (iso9660->zisofs.detect_magic)
zisofs_detect_magic(a, buff, ts);
if (iso9660->zisofs.making) {
if (zisofs_write_to_temp(a, buff, ts) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
} else {
if (wb_write_to_temp(a, buff, ts) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
iso9660->cur_file->cur_content->size += ts;
}
/* Write padding. */
if (wb_write_padding_to_temp(a,
iso9660->cur_file->cur_content->size) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Compute the logical block number. */
iso9660->cur_file->cur_content->blocks = (int)
((iso9660->cur_file->cur_content->size
+ LOGICAL_BLOCK_SIZE -1) >> LOGICAL_BLOCK_BITS);
/*
* Make next extent.
*/
ws -= ts;
buff = (const void *)(((const unsigned char *)buff) + ts);
/* Make a content for next extent. */
con = calloc(1, sizeof(*con));
if (con == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate content data");
return (ARCHIVE_FATAL);
}
con->offset_of_temp = wb_offset(a);
iso9660->cur_file->cur_content->next = con;
iso9660->cur_file->cur_content = con;
#ifdef HAVE_ZLIB_H
iso9660->zisofs.block_offset = 0;
#endif
}
if (iso9660->zisofs.detect_magic)
zisofs_detect_magic(a, buff, ws);
if (iso9660->zisofs.making) {
if (zisofs_write_to_temp(a, buff, ws) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
} else {
if (wb_write_to_temp(a, buff, ws) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
iso9660->cur_file->cur_content->size += ws;
}
return (s);
}
static ssize_t
iso9660_write_data(struct archive_write *a, const void *buff, size_t s)
{
struct iso9660 *iso9660 = a->format_data;
ssize_t r;
if (iso9660->cur_file == NULL)
return (0);
if (archive_entry_filetype(iso9660->cur_file->entry) != AE_IFREG)
return (0);
if (s > iso9660->bytes_remaining)
s = (size_t)iso9660->bytes_remaining;
if (s == 0)
return (0);
r = write_iso9660_data(a, buff, s);
if (r > 0)
iso9660->bytes_remaining -= r;
return (r);
}
static int
iso9660_finish_entry(struct archive_write *a)
{
struct iso9660 *iso9660 = a->format_data;
if (iso9660->cur_file == NULL)
return (ARCHIVE_OK);
if (archive_entry_filetype(iso9660->cur_file->entry) != AE_IFREG)
return (ARCHIVE_OK);
if (iso9660->cur_file->content.size == 0)
return (ARCHIVE_OK);
/* If there are unwritten data, write null data instead. */
while (iso9660->bytes_remaining > 0) {
size_t s;
s = (iso9660->bytes_remaining > a->null_length)?
a->null_length: (size_t)iso9660->bytes_remaining;
if (write_iso9660_data(a, a->nulls, s) < 0)
return (ARCHIVE_FATAL);
iso9660->bytes_remaining -= s;
}
if (iso9660->zisofs.making && zisofs_finish_entry(a) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Write padding. */
if (wb_write_padding_to_temp(a, iso9660->cur_file->cur_content->size)
!= ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Compute the logical block number. */
iso9660->cur_file->cur_content->blocks = (int)
((iso9660->cur_file->cur_content->size
+ LOGICAL_BLOCK_SIZE -1) >> LOGICAL_BLOCK_BITS);
/* Add the current file to data file list. */
isofile_add_data_file(iso9660, iso9660->cur_file);
return (ARCHIVE_OK);
}
static int
iso9660_close(struct archive_write *a)
{
struct iso9660 *iso9660;
int ret, blocks;
iso9660 = a->format_data;
/*
* Write remaining data out to the temporary file.
*/
if (wb_remaining(a) > 0) {
ret = wb_write_out(a);
if (ret < 0)
return (ret);
}
/*
* Preparations...
*/
#ifdef DEBUG
if (iso9660->birth_time == 0)
#endif
time(&(iso9660->birth_time));
/*
* Prepare a bootable ISO image.
*/
if (iso9660->opt.boot) {
/* Find out the boot file entry. */
ret = isoent_find_out_boot_file(a, iso9660->primary.rootent);
if (ret < 0)
return (ret);
/* Reconvert the boot file from zisofs'ed form to
* plain form. */
ret = zisofs_rewind_boot_file(a);
if (ret < 0)
return (ret);
/* Write remaining data out to the temporary file. */
if (wb_remaining(a) > 0) {
ret = wb_write_out(a);
if (ret < 0)
return (ret);
}
/* Create the boot catalog. */
ret = isoent_create_boot_catalog(a, iso9660->primary.rootent);
if (ret < 0)
return (ret);
}
/*
* Prepare joliet extensions.
*/
if (iso9660->opt.joliet) {
/* Make a new tree for joliet. */
ret = isoent_clone_tree(a, &(iso9660->joliet.rootent),
iso9660->primary.rootent);
if (ret < 0)
return (ret);
/* Make sure we have UTF-16BE converters.
* if there is no file entry, converters are still
* uninitialized. */
if (iso9660->sconv_to_utf16be == NULL) {
iso9660->sconv_to_utf16be =
archive_string_conversion_to_charset(
&(a->archive), "UTF-16BE", 1);
if (iso9660->sconv_to_utf16be == NULL)
/* Couldn't allocate memory */
return (ARCHIVE_FATAL);
iso9660->sconv_from_utf16be =
archive_string_conversion_from_charset(
&(a->archive), "UTF-16BE", 1);
if (iso9660->sconv_from_utf16be == NULL)
/* Couldn't allocate memory */
return (ARCHIVE_FATAL);
}
}
/*
* Make Path Tables.
*/
ret = isoent_make_path_table(a);
if (ret < 0)
return (ret);
/*
* Calculate a total volume size and setup all locations of
* contents of an iso9660 image.
*/
blocks = SYSTEM_AREA_BLOCK
+ PRIMARY_VOLUME_DESCRIPTOR_BLOCK
+ VOLUME_DESCRIPTOR_SET_TERMINATOR_BLOCK
+ NON_ISO_FILE_SYSTEM_INFORMATION_BLOCK;
if (iso9660->opt.boot)
blocks += BOOT_RECORD_DESCRIPTOR_BLOCK;
if (iso9660->opt.joliet)
blocks += SUPPLEMENTARY_VOLUME_DESCRIPTOR_BLOCK;
if (iso9660->opt.iso_level == 4)
blocks += SUPPLEMENTARY_VOLUME_DESCRIPTOR_BLOCK;
/* Setup the locations of Path Table. */
iso9660->primary.location_type_L_path_table = blocks;
blocks += iso9660->primary.path_table_block;
iso9660->primary.location_type_M_path_table = blocks;
blocks += iso9660->primary.path_table_block;
if (iso9660->opt.joliet) {
iso9660->joliet.location_type_L_path_table = blocks;
blocks += iso9660->joliet.path_table_block;
iso9660->joliet.location_type_M_path_table = blocks;
blocks += iso9660->joliet.path_table_block;
}
/* Setup the locations of directories. */
isoent_setup_directory_location(iso9660, blocks,
&(iso9660->primary));
blocks += iso9660->primary.total_dir_block;
if (iso9660->opt.joliet) {
isoent_setup_directory_location(iso9660, blocks,
&(iso9660->joliet));
blocks += iso9660->joliet.total_dir_block;
}
if (iso9660->opt.rr) {
iso9660->location_rrip_er = blocks;
blocks += RRIP_ER_BLOCK;
}
/* Setup the locations of all file contents. */
isoent_setup_file_location(iso9660, blocks);
blocks += iso9660->total_file_block;
if (iso9660->opt.boot && iso9660->opt.boot_info_table) {
ret = setup_boot_information(a);
if (ret < 0)
return (ret);
}
/* Now we have a total volume size. */
iso9660->volume_space_size = blocks;
if (iso9660->opt.pad)
iso9660->volume_space_size += PADDING_BLOCK;
iso9660->volume_sequence_number = 1;
/*
* Write an ISO 9660 image.
*/
/* Switch to start using wbuff as file buffer. */
iso9660->wbuff_remaining = wb_buffmax();
iso9660->wbuff_type = WB_TO_STREAM;
iso9660->wbuff_offset = 0;
iso9660->wbuff_written = 0;
iso9660->wbuff_tail = 0;
/* Write The System Area */
ret = write_null(a, SYSTEM_AREA_BLOCK * LOGICAL_BLOCK_SIZE);
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Write Primary Volume Descriptor */
ret = write_VD(a, &(iso9660->primary));
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
if (iso9660->opt.boot) {
/* Write Boot Record Volume Descriptor */
ret = write_VD_boot_record(a);
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
}
if (iso9660->opt.iso_level == 4) {
/* Write Enhanced Volume Descriptor */
iso9660->primary.vdd_type = VDD_ENHANCED;
ret = write_VD(a, &(iso9660->primary));
iso9660->primary.vdd_type = VDD_PRIMARY;
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
}
if (iso9660->opt.joliet) {
ret = write_VD(a, &(iso9660->joliet));
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
}
/* Write Volume Descriptor Set Terminator */
ret = write_VD_terminator(a);
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Write Non-ISO File System Information */
ret = write_information_block(a);
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Write Type L Path Table */
ret = write_path_table(a, 0, &(iso9660->primary));
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Write Type M Path Table */
ret = write_path_table(a, 1, &(iso9660->primary));
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
if (iso9660->opt.joliet) {
/* Write Type L Path Table */
ret = write_path_table(a, 0, &(iso9660->joliet));
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Write Type M Path Table */
ret = write_path_table(a, 1, &(iso9660->joliet));
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
}
/* Write Directory Descriptors */
ret = write_directory_descriptors(a, &(iso9660->primary));
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
if (iso9660->opt.joliet) {
ret = write_directory_descriptors(a, &(iso9660->joliet));
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
}
if (iso9660->opt.rr) {
/* Write Rockridge ER(Extensions Reference) */
ret = write_rr_ER(a);
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
}
/* Write File Descriptors */
ret = write_file_descriptors(a);
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Write Padding */
if (iso9660->opt.pad) {
ret = write_null(a, PADDING_BLOCK * LOGICAL_BLOCK_SIZE);
if (ret != ARCHIVE_OK)
return (ARCHIVE_FATAL);
}
if (iso9660->directories_too_deep != NULL) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"%s: Directories too deep.",
archive_entry_pathname(
iso9660->directories_too_deep->file->entry));
return (ARCHIVE_WARN);
}
/* Write remaining data out. */
ret = wb_write_out(a);
return (ret);
}
static int
iso9660_free(struct archive_write *a)
{
struct iso9660 *iso9660;
int i, ret;
iso9660 = a->format_data;
/* Close the temporary file. */
if (iso9660->temp_fd >= 0)
close(iso9660->temp_fd);
/* Free some stuff for zisofs operations. */
ret = zisofs_free(a);
/* Remove directory entries in tree which includes file entries. */
isoent_free_all(iso9660->primary.rootent);
for (i = 0; i < iso9660->primary.max_depth; i++)
free(iso9660->primary.pathtbl[i].sorted);
free(iso9660->primary.pathtbl);
if (iso9660->opt.joliet) {
isoent_free_all(iso9660->joliet.rootent);
for (i = 0; i < iso9660->joliet.max_depth; i++)
free(iso9660->joliet.pathtbl[i].sorted);
free(iso9660->joliet.pathtbl);
}
/* Remove isofile entries. */
isofile_free_all_entries(iso9660);
isofile_free_hardlinks(iso9660);
archive_string_free(&(iso9660->cur_dirstr));
archive_string_free(&(iso9660->volume_identifier));
archive_string_free(&(iso9660->publisher_identifier));
archive_string_free(&(iso9660->data_preparer_identifier));
archive_string_free(&(iso9660->application_identifier));
archive_string_free(&(iso9660->copyright_file_identifier));
archive_string_free(&(iso9660->abstract_file_identifier));
archive_string_free(&(iso9660->bibliographic_file_identifier));
archive_string_free(&(iso9660->el_torito.catalog_filename));
archive_string_free(&(iso9660->el_torito.boot_filename));
archive_string_free(&(iso9660->el_torito.id));
archive_string_free(&(iso9660->utf16be));
archive_string_free(&(iso9660->mbs));
free(iso9660);
a->format_data = NULL;
return (ret);
}
/*
* Get the System Identifier
*/
static void
get_system_identitier(char *system_id, size_t size)
{
#if defined(HAVE_SYS_UTSNAME_H)
struct utsname u;
uname(&u);
strncpy(system_id, u.sysname, size-1);
system_id[size-1] = '\0';
#elif defined(_WIN32) && !defined(__CYGWIN__)
strncpy(system_id, "Windows", size-1);
system_id[size-1] = '\0';
#else
#error no way to get the system identifier on your platform.
#endif
}
static void
set_str(unsigned char *p, const char *s, size_t l, char f, const char *map)
{
unsigned char c;
if (s == NULL)
s = "";
while ((c = *s++) != 0 && l > 0) {
if (c >= 0x80 || map[c] == 0)
{
/* illegal character */
if (c >= 'a' && c <= 'z') {
/* convert c from a-z to A-Z */
c -= 0x20;
} else
c = 0x5f;
}
*p++ = c;
l--;
}
/* If l isn't zero, fill p buffer by the character
* which indicated by f. */
if (l > 0)
memset(p , f, l);
}
static inline int
joliet_allowed_char(unsigned char high, unsigned char low)
{
int utf16 = (high << 8) | low;
if (utf16 <= 0x001F)
return (0);
switch (utf16) {
case 0x002A: /* '*' */
case 0x002F: /* '/' */
case 0x003A: /* ':' */
case 0x003B: /* ';' */
case 0x003F: /* '?' */
case 0x005C: /* '\' */
return (0);/* Not allowed. */
}
return (1);
}
static int
set_str_utf16be(struct archive_write *a, unsigned char *p, const char *s,
size_t l, uint16_t uf, enum vdc vdc)
{
size_t size, i;
int onepad;
if (s == NULL)
s = "";
if (l & 0x01) {
onepad = 1;
l &= ~1;
} else
onepad = 0;
if (vdc == VDC_UCS2) {
struct iso9660 *iso9660 = a->format_data;
if (archive_strncpy_l(&iso9660->utf16be, s, strlen(s),
iso9660->sconv_to_utf16be) != 0 && errno == ENOMEM) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory for UTF-16BE");
return (ARCHIVE_FATAL);
}
size = iso9660->utf16be.length;
if (size > l)
size = l;
memcpy(p, iso9660->utf16be.s, size);
} else {
const uint16_t *u16 = (const uint16_t *)s;
size = 0;
while (*u16++)
size += 2;
if (size > l)
size = l;
memcpy(p, s, size);
}
for (i = 0; i < size; i += 2, p += 2) {
if (!joliet_allowed_char(p[0], p[1]))
archive_be16enc(p, 0x005F);/* '_' */
}
l -= size;
while (l > 0) {
archive_be16enc(p, uf);
p += 2;
l -= 2;
}
if (onepad)
*p = 0;
return (ARCHIVE_OK);
}
static const char a_characters_map[0x80] = {
/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 00-0F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 10-1F */
1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 20-2F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 30-3F */
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 40-4F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,/* 50-5F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 60-6F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 70-7F */
};
static const char a1_characters_map[0x80] = {
/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 00-0F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 10-1F */
1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 20-2F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 30-3F */
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 40-4F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,/* 50-5F */
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 60-6F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,/* 70-7F */
};
static const char d_characters_map[0x80] = {
/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 00-0F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 10-1F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 20-2F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,/* 30-3F */
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 40-4F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,/* 50-5F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 60-6F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 70-7F */
};
static const char d1_characters_map[0x80] = {
/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 00-0F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 10-1F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,/* 20-2F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,/* 30-3F */
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 40-4F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,/* 50-5F */
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,/* 60-6F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,/* 70-7F */
};
static int
set_str_a_characters_bp(struct archive_write *a, unsigned char *bp,
int from, int to, const char *s, enum vdc vdc)
{
int r;
switch (vdc) {
case VDC_STD:
set_str(bp+from, s, to - from + 1, 0x20,
a_characters_map);
r = ARCHIVE_OK;
break;
case VDC_LOWERCASE:
set_str(bp+from, s, to - from + 1, 0x20,
a1_characters_map);
r = ARCHIVE_OK;
break;
case VDC_UCS2:
case VDC_UCS2_DIRECT:
r = set_str_utf16be(a, bp+from, s, to - from + 1,
0x0020, vdc);
break;
default:
r = ARCHIVE_FATAL;
}
return (r);
}
static int
set_str_d_characters_bp(struct archive_write *a, unsigned char *bp,
int from, int to, const char *s, enum vdc vdc)
{
int r;
switch (vdc) {
case VDC_STD:
set_str(bp+from, s, to - from + 1, 0x20,
d_characters_map);
r = ARCHIVE_OK;
break;
case VDC_LOWERCASE:
set_str(bp+from, s, to - from + 1, 0x20,
d1_characters_map);
r = ARCHIVE_OK;
break;
case VDC_UCS2:
case VDC_UCS2_DIRECT:
r = set_str_utf16be(a, bp+from, s, to - from + 1,
0x0020, vdc);
break;
default:
r = ARCHIVE_FATAL;
}
return (r);
}
static void
set_VD_bp(unsigned char *bp, enum VD_type type, unsigned char ver)
{
/* Volume Descriptor Type */
bp[1] = (unsigned char)type;
/* Standard Identifier */
memcpy(bp + 2, "CD001", 5);
/* Volume Descriptor Version */
bp[7] = ver;
}
static inline void
set_unused_field_bp(unsigned char *bp, int from, int to)
{
memset(bp + from, 0, to - from + 1);
}
/*
* 8-bit unsigned numerical values.
* ISO9660 Standard 7.1.1
*/
static inline void
set_num_711(unsigned char *p, unsigned char value)
{
*p = value;
}
/*
* 8-bit signed numerical values.
* ISO9660 Standard 7.1.2
*/
static inline void
set_num_712(unsigned char *p, char value)
{
*((char *)p) = value;
}
/*
* Least significant byte first.
* ISO9660 Standard 7.2.1
*/
static inline void
set_num_721(unsigned char *p, uint16_t value)
{
archive_le16enc(p, value);
}
/*
* Most significant byte first.
* ISO9660 Standard 7.2.2
*/
static inline void
set_num_722(unsigned char *p, uint16_t value)
{
archive_be16enc(p, value);
}
/*
* Both-byte orders.
* ISO9660 Standard 7.2.3
*/
static void
set_num_723(unsigned char *p, uint16_t value)
{
archive_le16enc(p, value);
archive_be16enc(p+2, value);
}
/*
* Least significant byte first.
* ISO9660 Standard 7.3.1
*/
static inline void
set_num_731(unsigned char *p, uint32_t value)
{
archive_le32enc(p, value);
}
/*
* Most significant byte first.
* ISO9660 Standard 7.3.2
*/
static inline void
set_num_732(unsigned char *p, uint32_t value)
{
archive_be32enc(p, value);
}
/*
* Both-byte orders.
* ISO9660 Standard 7.3.3
*/
static inline void
set_num_733(unsigned char *p, uint32_t value)
{
archive_le32enc(p, value);
archive_be32enc(p+4, value);
}
static void
set_digit(unsigned char *p, size_t s, int value)
{
while (s--) {
p[s] = '0' + (value % 10);
value /= 10;
}
}
#if defined(HAVE_STRUCT_TM_TM_GMTOFF)
#define get_gmoffset(tm) ((tm)->tm_gmtoff)
#elif defined(HAVE_STRUCT_TM___TM_GMTOFF)
#define get_gmoffset(tm) ((tm)->__tm_gmtoff)
#else
static long
get_gmoffset(struct tm *tm)
{
long offset;
#if defined(HAVE__GET_TIMEZONE)
_get_timezone(&offset);
#elif defined(__CYGWIN__) || defined(__MINGW32__) || defined(__BORLANDC__)
offset = _timezone;
#else
offset = timezone;
#endif
offset *= -1;
if (tm->tm_isdst)
offset += 3600;
return (offset);
}
#endif
static void
get_tmfromtime(struct tm *tm, time_t *t)
{
#if HAVE_LOCALTIME_R
tzset();
localtime_r(t, tm);
#elif HAVE__LOCALTIME64_S
__time64_t tmp_t = (__time64_t) *t; //time_t may be shorter than 64 bits
_localtime64_s(tm, &tmp_t);
#else
memcpy(tm, localtime(t), sizeof(*tm));
#endif
}
/*
* Date and Time Format.
* ISO9660 Standard 8.4.26.1
*/
static void
set_date_time(unsigned char *p, time_t t)
{
struct tm tm;
get_tmfromtime(&tm, &t);
set_digit(p, 4, tm.tm_year + 1900);
set_digit(p+4, 2, tm.tm_mon + 1);
set_digit(p+6, 2, tm.tm_mday);
set_digit(p+8, 2, tm.tm_hour);
set_digit(p+10, 2, tm.tm_min);
set_digit(p+12, 2, tm.tm_sec);
set_digit(p+14, 2, 0);
set_num_712(p+16, (char)(get_gmoffset(&tm)/(60*15)));
}
static void
set_date_time_null(unsigned char *p)
{
memset(p, (int)'0', 16);
p[16] = 0;
}
static void
set_time_915(unsigned char *p, time_t t)
{
struct tm tm;
get_tmfromtime(&tm, &t);
set_num_711(p+0, tm.tm_year);
set_num_711(p+1, tm.tm_mon+1);
set_num_711(p+2, tm.tm_mday);
set_num_711(p+3, tm.tm_hour);
set_num_711(p+4, tm.tm_min);
set_num_711(p+5, tm.tm_sec);
set_num_712(p+6, (char)(get_gmoffset(&tm)/(60*15)));
}
/*
* Write SUSP "CE" System Use Entry.
*/
static int
set_SUSP_CE(unsigned char *p, int location, int offset, int size)
{
unsigned char *bp = p -1;
/* Extend the System Use Area
* "CE" Format:
* len ver
* +----+----+----+----+-----------+-----------+
* | 'C'| 'E'| 1C | 01 | LOCATION1 | LOCATION2 |
* +----+----+----+----+-----------+-----------+
* 0 1 2 3 4 12 20
* +-----------+
* | LOCATION3 |
* +-----------+
* 20 28
* LOCATION1 : Location of Continuation of System Use Area.
* LOCATION2 : Offset to Start of Continuation.
* LOCATION3 : Length of the Continuation.
*/
bp[1] = 'C';
bp[2] = 'E';
bp[3] = RR_CE_SIZE; /* length */
bp[4] = 1; /* version */
set_num_733(bp+5, location);
set_num_733(bp+13, offset);
set_num_733(bp+21, size);
return (RR_CE_SIZE);
}
/*
* The functions, which names are beginning with extra_, are used to
* control extra records.
* The maximum size of a Directory Record is 254. When a filename is
* very long, all of RRIP data of a file won't stored to the Directory
* Record and so remaining RRIP data store to an extra record instead.
*/
static unsigned char *
extra_open_record(unsigned char *bp, int dr_len, struct isoent *isoent,
struct ctl_extr_rec *ctl)
{
ctl->bp = bp;
if (bp != NULL)
bp += dr_len;
ctl->use_extr = 0;
ctl->isoent = isoent;
ctl->ce_ptr = NULL;
ctl->cur_len = ctl->dr_len = dr_len;
ctl->limit = DR_LIMIT;
return (bp);
}
static void
extra_close_record(struct ctl_extr_rec *ctl, int ce_size)
{
int padding = 0;
if (ce_size > 0)
extra_tell_used_size(ctl, ce_size);
/* Padding. */
if (ctl->cur_len & 0x01) {
ctl->cur_len++;
if (ctl->bp != NULL)
ctl->bp[ctl->cur_len] = 0;
padding = 1;
}
if (ctl->use_extr) {
if (ctl->ce_ptr != NULL)
set_SUSP_CE(ctl->ce_ptr, ctl->extr_loc,
ctl->extr_off, ctl->cur_len - padding);
} else
ctl->dr_len = ctl->cur_len;
}
#define extra_space(ctl) ((ctl)->limit - (ctl)->cur_len)
static unsigned char *
extra_next_record(struct ctl_extr_rec *ctl, int length)
{
int cur_len = ctl->cur_len;/* save cur_len */
/* Close the current extra record or Directory Record. */
extra_close_record(ctl, RR_CE_SIZE);
/* Get a next extra record. */
ctl->use_extr = 1;
if (ctl->bp != NULL) {
/* Storing data into an extra record. */
unsigned char *p;
/* Save the pointer where a CE extension will be
* stored to. */
ctl->ce_ptr = &ctl->bp[cur_len+1];
p = extra_get_record(ctl->isoent,
&ctl->limit, &ctl->extr_off, &ctl->extr_loc);
ctl->bp = p - 1;/* the base of bp offset is 1. */
} else
/* Calculating the size of an extra record. */
(void)extra_get_record(ctl->isoent,
&ctl->limit, NULL, NULL);
ctl->cur_len = 0;
/* Check if an extra record is almost full.
* If so, get a next one. */
if (extra_space(ctl) < length)
(void)extra_next_record(ctl, length);
return (ctl->bp);
}
static inline struct extr_rec *
extra_last_record(struct isoent *isoent)
{
if (isoent->extr_rec_list.first == NULL)
return (NULL);
return ((struct extr_rec *)(void *)
((char *)(isoent->extr_rec_list.last)
- offsetof(struct extr_rec, next)));
}
static unsigned char *
extra_get_record(struct isoent *isoent, int *space, int *off, int *loc)
{
struct extr_rec *rec;
isoent = isoent->parent;
if (off != NULL) {
/* Storing data into an extra record. */
rec = isoent->extr_rec_list.current;
if (DR_SAFETY > LOGICAL_BLOCK_SIZE - rec->offset)
rec = rec->next;
} else {
/* Calculating the size of an extra record. */
rec = extra_last_record(isoent);
if (rec == NULL ||
DR_SAFETY > LOGICAL_BLOCK_SIZE - rec->offset) {
rec = malloc(sizeof(*rec));
if (rec == NULL)
return (NULL);
rec->location = 0;
rec->offset = 0;
/* Insert `rec` into the tail of isoent->extr_rec_list */
rec->next = NULL;
/*
* Note: testing isoent->extr_rec_list.last == NULL
* here is really unneeded since it has been already
* initialized at isoent_new function but Clang Static
* Analyzer claims that it is dereference of null
* pointer.
*/
if (isoent->extr_rec_list.last == NULL)
isoent->extr_rec_list.last =
&(isoent->extr_rec_list.first);
*isoent->extr_rec_list.last = rec;
isoent->extr_rec_list.last = &(rec->next);
}
}
*space = LOGICAL_BLOCK_SIZE - rec->offset - DR_SAFETY;
if (*space & 0x01)
*space -= 1;/* Keep padding space. */
if (off != NULL)
*off = rec->offset;
if (loc != NULL)
*loc = rec->location;
isoent->extr_rec_list.current = rec;
return (&rec->buf[rec->offset]);
}
static void
extra_tell_used_size(struct ctl_extr_rec *ctl, int size)
{
struct isoent *isoent;
struct extr_rec *rec;
if (ctl->use_extr) {
isoent = ctl->isoent->parent;
rec = isoent->extr_rec_list.current;
if (rec != NULL)
rec->offset += size;
}
ctl->cur_len += size;
}
static int
extra_setup_location(struct isoent *isoent, int location)
{
struct extr_rec *rec;
int cnt;
cnt = 0;
rec = isoent->extr_rec_list.first;
isoent->extr_rec_list.current = rec;
while (rec) {
cnt++;
rec->location = location++;
rec->offset = 0;
rec = rec->next;
}
return (cnt);
}
/*
* Create the RRIP entries.
*/
static int
set_directory_record_rr(unsigned char *bp, int dr_len,
struct isoent *isoent, struct iso9660 *iso9660, enum dir_rec_type t)
{
/* Flags(BP 5) of the Rockridge "RR" System Use Field */
unsigned char rr_flag;
#define RR_USE_PX 0x01
#define RR_USE_PN 0x02
#define RR_USE_SL 0x04
#define RR_USE_NM 0x08
#define RR_USE_CL 0x10
#define RR_USE_PL 0x20
#define RR_USE_RE 0x40
#define RR_USE_TF 0x80
int length;
struct ctl_extr_rec ctl;
struct isoent *rr_parent, *pxent;
struct isofile *file;
bp = extra_open_record(bp, dr_len, isoent, &ctl);
if (t == DIR_REC_PARENT) {
rr_parent = isoent->rr_parent;
pxent = isoent->parent;
if (rr_parent != NULL)
isoent = rr_parent;
else
isoent = isoent->parent;
} else {
rr_parent = NULL;
pxent = isoent;
}
file = isoent->file;
if (t != DIR_REC_NORMAL) {
rr_flag = RR_USE_PX | RR_USE_TF;
if (rr_parent != NULL)
rr_flag |= RR_USE_PL;
} else {
rr_flag = RR_USE_PX | RR_USE_NM | RR_USE_TF;
if (archive_entry_filetype(file->entry) == AE_IFLNK)
rr_flag |= RR_USE_SL;
if (isoent->rr_parent != NULL)
rr_flag |= RR_USE_RE;
if (isoent->rr_child != NULL)
rr_flag |= RR_USE_CL;
if (archive_entry_filetype(file->entry) == AE_IFCHR ||
archive_entry_filetype(file->entry) == AE_IFBLK)
rr_flag |= RR_USE_PN;
#ifdef COMPAT_MKISOFS
/*
* mkisofs 2.01.01a63 records "RE" extension to
* the entry of "rr_moved" directory.
* I don't understand this behavior.
*/
if (isoent->virtual &&
isoent->parent == iso9660->primary.rootent &&
strcmp(isoent->file->basename.s, "rr_moved") == 0)
rr_flag |= RR_USE_RE;
#endif
}
/* Write "SP" System Use Entry. */
if (t == DIR_REC_SELF && isoent == isoent->parent) {
length = 7;
if (bp != NULL) {
bp[1] = 'S';
bp[2] = 'P';
bp[3] = length;
bp[4] = 1; /* version */
bp[5] = 0xBE; /* Check Byte */
bp[6] = 0xEF; /* Check Byte */
bp[7] = 0;
bp += length;
}
extra_tell_used_size(&ctl, length);
}
/* Write "RR" System Use Entry. */
length = 5;
if (extra_space(&ctl) < length)
bp = extra_next_record(&ctl, length);
if (bp != NULL) {
bp[1] = 'R';
bp[2] = 'R';
bp[3] = length;
bp[4] = 1; /* version */
bp[5] = rr_flag;
bp += length;
}
extra_tell_used_size(&ctl, length);
/* Write "NM" System Use Entry. */
if (rr_flag & RR_USE_NM) {
/*
* "NM" Format:
* e.g. a basename is 'foo'
* len ver flg
* +----+----+----+----+----+----+----+----+
* | 'N'| 'M'| 08 | 01 | 00 | 'f'| 'o'| 'o'|
* +----+----+----+----+----+----+----+----+
* <----------------- len ----------------->
*/
size_t nmlen = file->basename.length;
const char *nm = file->basename.s;
size_t nmmax;
if (extra_space(&ctl) < 6)
bp = extra_next_record(&ctl, 6);
if (bp != NULL) {
bp[1] = 'N';
bp[2] = 'M';
bp[4] = 1; /* version */
}
nmmax = extra_space(&ctl);
if (nmmax > 0xff)
nmmax = 0xff;
while (nmlen + 5 > nmmax) {
length = (int)nmmax;
if (bp != NULL) {
bp[3] = length;
bp[5] = 0x01;/* Alternate Name continues
* in next "NM" field */
memcpy(bp+6, nm, length - 5);
bp += length;
}
nmlen -= length - 5;
nm += length - 5;
extra_tell_used_size(&ctl, length);
if (extra_space(&ctl) < 6) {
bp = extra_next_record(&ctl, 6);
nmmax = extra_space(&ctl);
if (nmmax > 0xff)
nmmax = 0xff;
}
if (bp != NULL) {
bp[1] = 'N';
bp[2] = 'M';
bp[4] = 1; /* version */
}
}
length = 5 + (int)nmlen;
if (bp != NULL) {
bp[3] = length;
bp[5] = 0;
memcpy(bp+6, nm, nmlen);
bp += length;
}
extra_tell_used_size(&ctl, length);
}
/* Write "PX" System Use Entry. */
if (rr_flag & RR_USE_PX) {
/*
* "PX" Format:
* len ver
* +----+----+----+----+-----------+-----------+
* | 'P'| 'X'| 2C | 01 | FILE MODE | LINKS |
* +----+----+----+----+-----------+-----------+
* 0 1 2 3 4 12 20
* +-----------+-----------+------------------+
* | USER ID | GROUP ID |FILE SERIAL NUMBER|
* +-----------+-----------+------------------+
* 20 28 36 44
*/
length = 44;
if (extra_space(&ctl) < length)
bp = extra_next_record(&ctl, length);
if (bp != NULL) {
mode_t mode;
int64_t uid;
int64_t gid;
mode = archive_entry_mode(file->entry);
uid = archive_entry_uid(file->entry);
gid = archive_entry_gid(file->entry);
if (iso9660->opt.rr == OPT_RR_USEFUL) {
/*
* This action is similar to mkisofs -r option
* but our rockridge=useful option does not
* set a zero to uid and gid.
*/
/* set all read bit ON */
mode |= 0444;
#if !defined(_WIN32) && !defined(__CYGWIN__)
if (mode & 0111)
#endif
/* set all exec bit ON */
mode |= 0111;
/* clear all write bits. */
mode &= ~0222;
/* clear setuid,setgid,sticky bits. */
mode &= ~07000;
}
bp[1] = 'P';
bp[2] = 'X';
bp[3] = length;
bp[4] = 1; /* version */
/* file mode */
set_num_733(bp+5, mode);
/* file links (stat.st_nlink) */
set_num_733(bp+13,
archive_entry_nlink(file->entry));
set_num_733(bp+21, (uint32_t)uid);
set_num_733(bp+29, (uint32_t)gid);
/* File Serial Number */
if (pxent->dir)
set_num_733(bp+37, pxent->dir_location);
else if (file->hardlink_target != NULL)
set_num_733(bp+37,
file->hardlink_target->cur_content->location);
else
set_num_733(bp+37,
file->cur_content->location);
bp += length;
}
extra_tell_used_size(&ctl, length);
}
/* Write "SL" System Use Entry. */
if (rr_flag & RR_USE_SL) {
/*
* "SL" Format:
* e.g. a symbolic name is 'foo/bar'
* len ver flg
* +----+----+----+----+----+------------+
* | 'S'| 'L'| 0F | 01 | 00 | components |
* +----+----+----+----+----+-----+------+
* 0 1 2 3 4 5 ...|... 15
* <----------------- len --------+------>
* components : |
* cflg clen |
* +----+----+----+----+----+ |
* | 00 | 03 | 'f'| 'o'| 'o'| <---+
* +----+----+----+----+----+ |
* 5 6 7 8 9 10 |
* cflg clen |
* +----+----+----+----+----+ |
* | 00 | 03 | 'b'| 'a'| 'r'| <---+
* +----+----+----+----+----+
* 10 11 12 13 14 15
*
* - cflg : flag of component
* - clen : length of component
*/
const char *sl;
char sl_last;
if (extra_space(&ctl) < 7)
bp = extra_next_record(&ctl, 7);
sl = file->symlink.s;
sl_last = '\0';
if (bp != NULL) {
bp[1] = 'S';
bp[2] = 'L';
bp[4] = 1; /* version */
}
for (;;) {
unsigned char *nc, *cf, *cl, cldmy = 0;
int sllen, slmax;
slmax = extra_space(&ctl);
if (slmax > 0xff)
slmax = 0xff;
if (bp != NULL)
nc = &bp[6];
else
nc = NULL;
cf = cl = NULL;
sllen = 0;
while (*sl && sllen + 11 < slmax) {
if (sl_last == '\0' && sl[0] == '/') {
/*
* flg len
* +----+----+
* | 08 | 00 | ROOT component.
* +----+----+ ("/")
*
* Root component has to appear
* at the first component only.
*/
if (nc != NULL) {
cf = nc++;
*cf = 0x08; /* ROOT */
*nc++ = 0;
}
sllen += 2;
sl++;
sl_last = '/';
cl = NULL;
continue;
}
if (((sl_last == '\0' || sl_last == '/') &&
sl[0] == '.' && sl[1] == '.' &&
(sl[2] == '/' || sl[2] == '\0')) ||
(sl[0] == '/' &&
sl[1] == '.' && sl[2] == '.' &&
(sl[3] == '/' || sl[3] == '\0'))) {
/*
* flg len
* +----+----+
* | 04 | 00 | PARENT component.
* +----+----+ ("..")
*/
if (nc != NULL) {
cf = nc++;
*cf = 0x04; /* PARENT */
*nc++ = 0;
}
sllen += 2;
if (sl[0] == '/')
sl += 3;/* skip "/.." */
else
sl += 2;/* skip ".." */
sl_last = '.';
cl = NULL;
continue;
}
if (((sl_last == '\0' || sl_last == '/') &&
sl[0] == '.' &&
(sl[1] == '/' || sl[1] == '\0')) ||
(sl[0] == '/' && sl[1] == '.' &&
(sl[2] == '/' || sl[2] == '\0'))) {
/*
* flg len
* +----+----+
* | 02 | 00 | CURRENT component.
* +----+----+ (".")
*/
if (nc != NULL) {
cf = nc++;
*cf = 0x02; /* CURRENT */
*nc++ = 0;
}
sllen += 2;
if (sl[0] == '/')
sl += 2;/* skip "/." */
else
sl ++; /* skip "." */
sl_last = '.';
cl = NULL;
continue;
}
if (sl[0] == '/' || cl == NULL) {
if (nc != NULL) {
cf = nc++;
*cf = 0;
cl = nc++;
*cl = 0;
} else
cl = &cldmy;
sllen += 2;
if (sl[0] == '/') {
sl_last = *sl++;
continue;
}
}
sl_last = *sl++;
if (nc != NULL) {
*nc++ = sl_last;
(*cl) ++;
}
sllen++;
}
if (*sl) {
length = 5 + sllen;
if (bp != NULL) {
/*
* Mark flg as CONTINUE component.
*/
*cf |= 0x01;
/*
* len ver flg
* +----+----+----+----+----+-
* | 'S'| 'L'| XX | 01 | 01 |
* +----+----+----+----+----+-
* ^
* continues in next "SL"
*/
bp[3] = length;
bp[5] = 0x01;/* This Symbolic Link
* continues in next
* "SL" field */
bp += length;
}
extra_tell_used_size(&ctl, length);
if (extra_space(&ctl) < 11)
bp = extra_next_record(&ctl, 11);
if (bp != NULL) {
/* Next 'SL' */
bp[1] = 'S';
bp[2] = 'L';
bp[4] = 1; /* version */
}
} else {
length = 5 + sllen;
if (bp != NULL) {
bp[3] = length;
bp[5] = 0;
bp += length;
}
extra_tell_used_size(&ctl, length);
break;
}
}
}
/* Write "TF" System Use Entry. */
if (rr_flag & RR_USE_TF) {
/*
* "TF" Format:
* len ver
* +----+----+----+----+-----+-------------+
* | 'T'| 'F'| XX | 01 |FLAGS| TIME STAMPS |
* +----+----+----+----+-----+-------------+
* 0 1 2 3 4 5 XX
* TIME STAMPS : ISO 9660 Standard 9.1.5.
* If TF_LONG_FORM FLAGS is set,
* use ISO9660 Standard 8.4.26.1.
*/
#define TF_CREATION 0x01 /* Creation time recorded */
#define TF_MODIFY 0x02 /* Modification time recorded */
#define TF_ACCESS 0x04 /* Last Access time recorded */
#define TF_ATTRIBUTES 0x08 /* Last Attribute Change time recorded */
#define TF_BACKUP 0x10 /* Last Backup time recorded */
#define TF_EXPIRATION 0x20 /* Expiration time recorded */
#define TF_EFFECTIVE 0x40 /* Effective time recorded */
#define TF_LONG_FORM 0x80 /* ISO 9660 17-byte time format used */
unsigned char tf_flags;
length = 5;
tf_flags = 0;
#ifndef COMPAT_MKISOFS
if (archive_entry_birthtime_is_set(file->entry) &&
archive_entry_birthtime(file->entry) <=
archive_entry_mtime(file->entry)) {
length += 7;
tf_flags |= TF_CREATION;
}
#endif
if (archive_entry_mtime_is_set(file->entry)) {
length += 7;
tf_flags |= TF_MODIFY;
}
if (archive_entry_atime_is_set(file->entry)) {
length += 7;
tf_flags |= TF_ACCESS;
}
if (archive_entry_ctime_is_set(file->entry)) {
length += 7;
tf_flags |= TF_ATTRIBUTES;
}
if (extra_space(&ctl) < length)
bp = extra_next_record(&ctl, length);
if (bp != NULL) {
bp[1] = 'T';
bp[2] = 'F';
bp[3] = length;
bp[4] = 1; /* version */
bp[5] = tf_flags;
bp += 5;
/* Creation time */
if (tf_flags & TF_CREATION) {
set_time_915(bp+1,
archive_entry_birthtime(file->entry));
bp += 7;
}
/* Modification time */
if (tf_flags & TF_MODIFY) {
set_time_915(bp+1,
archive_entry_mtime(file->entry));
bp += 7;
}
/* Last Access time */
if (tf_flags & TF_ACCESS) {
set_time_915(bp+1,
archive_entry_atime(file->entry));
bp += 7;
}
/* Last Attribute Change time */
if (tf_flags & TF_ATTRIBUTES) {
set_time_915(bp+1,
archive_entry_ctime(file->entry));
bp += 7;
}
}
extra_tell_used_size(&ctl, length);
}
/* Write "RE" System Use Entry. */
if (rr_flag & RR_USE_RE) {
/*
* "RE" Format:
* len ver
* +----+----+----+----+
* | 'R'| 'E'| 04 | 01 |
* +----+----+----+----+
* 0 1 2 3 4
*/
length = 4;
if (extra_space(&ctl) < length)
bp = extra_next_record(&ctl, length);
if (bp != NULL) {
bp[1] = 'R';
bp[2] = 'E';
bp[3] = length;
bp[4] = 1; /* version */
bp += length;
}
extra_tell_used_size(&ctl, length);
}
/* Write "PL" System Use Entry. */
if (rr_flag & RR_USE_PL) {
/*
* "PL" Format:
* len ver
* +----+----+----+----+------------+
* | 'P'| 'L'| 0C | 01 | *LOCATION |
* +----+----+----+----+------------+
* 0 1 2 3 4 12
* *LOCATION: location of parent directory
*/
length = 12;
if (extra_space(&ctl) < length)
bp = extra_next_record(&ctl, length);
if (bp != NULL) {
bp[1] = 'P';
bp[2] = 'L';
bp[3] = length;
bp[4] = 1; /* version */
set_num_733(bp + 5,
rr_parent->dir_location);
bp += length;
}
extra_tell_used_size(&ctl, length);
}
/* Write "CL" System Use Entry. */
if (rr_flag & RR_USE_CL) {
/*
* "CL" Format:
* len ver
* +----+----+----+----+------------+
* | 'C'| 'L'| 0C | 01 | *LOCATION |
* +----+----+----+----+------------+
* 0 1 2 3 4 12
* *LOCATION: location of child directory
*/
length = 12;
if (extra_space(&ctl) < length)
bp = extra_next_record(&ctl, length);
if (bp != NULL) {
bp[1] = 'C';
bp[2] = 'L';
bp[3] = length;
bp[4] = 1; /* version */
set_num_733(bp + 5,
isoent->rr_child->dir_location);
bp += length;
}
extra_tell_used_size(&ctl, length);
}
/* Write "PN" System Use Entry. */
if (rr_flag & RR_USE_PN) {
/*
* "PN" Format:
* len ver
* +----+----+----+----+------------+------------+
* | 'P'| 'N'| 14 | 01 | dev_t high | dev_t low |
* +----+----+----+----+------------+------------+
* 0 1 2 3 4 12 20
*/
length = 20;
if (extra_space(&ctl) < length)
bp = extra_next_record(&ctl, length);
if (bp != NULL) {
uint64_t dev;
bp[1] = 'P';
bp[2] = 'N';
bp[3] = length;
bp[4] = 1; /* version */
dev = (uint64_t)archive_entry_rdev(file->entry);
set_num_733(bp + 5, (uint32_t)(dev >> 32));
set_num_733(bp + 13, (uint32_t)(dev & 0xFFFFFFFF));
bp += length;
}
extra_tell_used_size(&ctl, length);
}
/* Write "ZF" System Use Entry. */
if (file->zisofs.header_size) {
/*
* "ZF" Format:
* len ver
* +----+----+----+----+----+----+-------------+
* | 'Z'| 'F'| 10 | 01 | 'p'| 'z'| Header Size |
* +----+----+----+----+----+----+-------------+
* 0 1 2 3 4 5 6 7
* +--------------------+-------------------+
* | Log2 of block Size | Uncompressed Size |
* +--------------------+-------------------+
* 7 8 16
*/
length = 16;
if (extra_space(&ctl) < length)
bp = extra_next_record(&ctl, length);
if (bp != NULL) {
bp[1] = 'Z';
bp[2] = 'F';
bp[3] = length;
bp[4] = 1; /* version */
bp[5] = 'p';
bp[6] = 'z';
bp[7] = file->zisofs.header_size;
bp[8] = file->zisofs.log2_bs;
set_num_733(bp + 9, file->zisofs.uncompressed_size);
bp += length;
}
extra_tell_used_size(&ctl, length);
}
/* Write "CE" System Use Entry. */
if (t == DIR_REC_SELF && isoent == isoent->parent) {
length = RR_CE_SIZE;
if (bp != NULL)
set_SUSP_CE(bp+1, iso9660->location_rrip_er,
0, RRIP_ER_SIZE);
extra_tell_used_size(&ctl, length);
}
extra_close_record(&ctl, 0);
return (ctl.dr_len);
}
/*
* Write data of a Directory Record or calculate writing bytes itself.
* If parameter `p' is NULL, calculates the size of writing data, which
* a Directory Record needs to write, then it saved and return
* the calculated size.
* Parameter `n' is a remaining size of buffer. when parameter `p' is
* not NULL, check whether that `n' is not less than the saved size.
* if that `n' is small, return zero.
*
* This format of the Directory Record is according to
* ISO9660 Standard 9.1
*/
static int
set_directory_record(unsigned char *p, size_t n, struct isoent *isoent,
struct iso9660 *iso9660, enum dir_rec_type t,
enum vdd_type vdd_type)
{
unsigned char *bp;
size_t dr_len;
size_t fi_len;
if (p != NULL) {
/*
* Check whether a write buffer size is less than the
* saved size which is needed to write this Directory
* Record.
*/
switch (t) {
case DIR_REC_VD:
dr_len = isoent->dr_len.vd; break;
case DIR_REC_SELF:
dr_len = isoent->dr_len.self; break;
case DIR_REC_PARENT:
dr_len = isoent->dr_len.parent; break;
case DIR_REC_NORMAL:
default:
dr_len = isoent->dr_len.normal; break;
}
if (dr_len > n)
return (0);/* Needs more buffer size. */
}
if (t == DIR_REC_NORMAL && isoent->identifier != NULL)
fi_len = isoent->id_len;
else
fi_len = 1;
if (p != NULL) {
struct isoent *xisoent;
struct isofile *file;
unsigned char flag;
if (t == DIR_REC_PARENT)
xisoent = isoent->parent;
else
xisoent = isoent;
file = isoent->file;
if (file->hardlink_target != NULL)
file = file->hardlink_target;
/* Make a file flag. */
if (xisoent->dir)
flag = FILE_FLAG_DIRECTORY;
else {
if (file->cur_content->next != NULL)
flag = FILE_FLAG_MULTI_EXTENT;
else
flag = 0;
}
bp = p -1;
/* Extended Attribute Record Length */
set_num_711(bp+2, 0);
/* Location of Extent */
if (xisoent->dir)
set_num_733(bp+3, xisoent->dir_location);
else
set_num_733(bp+3, file->cur_content->location);
/* Data Length */
if (xisoent->dir)
set_num_733(bp+11,
xisoent->dir_block * LOGICAL_BLOCK_SIZE);
else
set_num_733(bp+11, (uint32_t)file->cur_content->size);
/* Recording Date and Time */
/* NOTE:
* If a file type is symbolic link, you are seeing this
* field value is different from a value mkisofs makes.
* libarchive uses lstat to get this one, but it
* seems mkisofs uses stat to get.
*/
set_time_915(bp+19,
archive_entry_mtime(xisoent->file->entry));
/* File Flags */
bp[26] = flag;
/* File Unit Size */
set_num_711(bp+27, 0);
/* Interleave Gap Size */
set_num_711(bp+28, 0);
/* Volume Sequence Number */
set_num_723(bp+29, iso9660->volume_sequence_number);
/* Length of File Identifier */
set_num_711(bp+33, (unsigned char)fi_len);
/* File Identifier */
switch (t) {
case DIR_REC_VD:
case DIR_REC_SELF:
set_num_711(bp+34, 0);
break;
case DIR_REC_PARENT:
set_num_711(bp+34, 1);
break;
case DIR_REC_NORMAL:
if (isoent->identifier != NULL)
memcpy(bp+34, isoent->identifier, fi_len);
else
set_num_711(bp+34, 0);
break;
}
} else
bp = NULL;
dr_len = 33 + fi_len;
/* Padding Field */
if (dr_len & 0x01) {
dr_len ++;
if (p != NULL)
bp[dr_len] = 0;
}
/* Volume Descriptor does not record extension. */
if (t == DIR_REC_VD) {
if (p != NULL)
/* Length of Directory Record */
set_num_711(p, (unsigned char)dr_len);
else
isoent->dr_len.vd = (int)dr_len;
return ((int)dr_len);
}
/* Rockridge */
if (iso9660->opt.rr && vdd_type != VDD_JOLIET)
dr_len = set_directory_record_rr(bp, (int)dr_len,
isoent, iso9660, t);
if (p != NULL)
/* Length of Directory Record */
set_num_711(p, (unsigned char)dr_len);
else {
/*
* Save the size which is needed to write this
* Directory Record.
*/
switch (t) {
case DIR_REC_VD:
/* This case does not come, but compiler
* complains that DIR_REC_VD not handled
* in switch .... */
break;
case DIR_REC_SELF:
isoent->dr_len.self = (int)dr_len; break;
case DIR_REC_PARENT:
isoent->dr_len.parent = (int)dr_len; break;
case DIR_REC_NORMAL:
isoent->dr_len.normal = (int)dr_len; break;
}
}
return ((int)dr_len);
}
/*
* Calculate the size of a directory record.
*/
static inline int
get_dir_rec_size(struct iso9660 *iso9660, struct isoent *isoent,
enum dir_rec_type t, enum vdd_type vdd_type)
{
return (set_directory_record(NULL, SIZE_MAX,
isoent, iso9660, t, vdd_type));
}
/*
* Manage to write ISO-image data with wbuff to reduce calling
* __archive_write_output() for performance.
*/
static inline unsigned char *
wb_buffptr(struct archive_write *a)
{
struct iso9660 *iso9660 = (struct iso9660 *)a->format_data;
return (&(iso9660->wbuff[sizeof(iso9660->wbuff)
- iso9660->wbuff_remaining]));
}
static int
wb_write_out(struct archive_write *a)
{
struct iso9660 *iso9660 = (struct iso9660 *)a->format_data;
size_t wsize, nw;
int r;
wsize = sizeof(iso9660->wbuff) - iso9660->wbuff_remaining;
nw = wsize % LOGICAL_BLOCK_SIZE;
if (iso9660->wbuff_type == WB_TO_STREAM)
r = __archive_write_output(a, iso9660->wbuff, wsize - nw);
else
r = write_to_temp(a, iso9660->wbuff, wsize - nw);
/* Increase the offset. */
iso9660->wbuff_offset += wsize - nw;
if (iso9660->wbuff_offset > iso9660->wbuff_written)
iso9660->wbuff_written = iso9660->wbuff_offset;
iso9660->wbuff_remaining = sizeof(iso9660->wbuff);
if (nw) {
iso9660->wbuff_remaining -= nw;
memmove(iso9660->wbuff, iso9660->wbuff + wsize - nw, nw);
}
return (r);
}
static int
wb_consume(struct archive_write *a, size_t size)
{
struct iso9660 *iso9660 = (struct iso9660 *)a->format_data;
if (size > iso9660->wbuff_remaining ||
iso9660->wbuff_remaining == 0) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Internal Programing error: iso9660:wb_consume()"
" size=%jd, wbuff_remaining=%jd",
(intmax_t)size, (intmax_t)iso9660->wbuff_remaining);
return (ARCHIVE_FATAL);
}
iso9660->wbuff_remaining -= size;
if (iso9660->wbuff_remaining < LOGICAL_BLOCK_SIZE)
return (wb_write_out(a));
return (ARCHIVE_OK);
}
#ifdef HAVE_ZLIB_H
static int
wb_set_offset(struct archive_write *a, int64_t off)
{
struct iso9660 *iso9660 = (struct iso9660 *)a->format_data;
int64_t used, ext_bytes;
if (iso9660->wbuff_type != WB_TO_TEMP) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Internal Programing error: iso9660:wb_set_offset()");
return (ARCHIVE_FATAL);
}
used = sizeof(iso9660->wbuff) - iso9660->wbuff_remaining;
if (iso9660->wbuff_offset + used > iso9660->wbuff_tail)
iso9660->wbuff_tail = iso9660->wbuff_offset + used;
if (iso9660->wbuff_offset < iso9660->wbuff_written) {
if (used > 0 &&
write_to_temp(a, iso9660->wbuff, (size_t)used) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
iso9660->wbuff_offset = iso9660->wbuff_written;
lseek(iso9660->temp_fd, iso9660->wbuff_offset, SEEK_SET);
iso9660->wbuff_remaining = sizeof(iso9660->wbuff);
used = 0;
}
if (off < iso9660->wbuff_offset) {
/*
* Write out waiting data.
*/
if (used > 0) {
if (wb_write_out(a) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
}
lseek(iso9660->temp_fd, off, SEEK_SET);
iso9660->wbuff_offset = off;
iso9660->wbuff_remaining = sizeof(iso9660->wbuff);
} else if (off <= iso9660->wbuff_tail) {
iso9660->wbuff_remaining = (size_t)
(sizeof(iso9660->wbuff) - (off - iso9660->wbuff_offset));
} else {
ext_bytes = off - iso9660->wbuff_tail;
iso9660->wbuff_remaining = (size_t)(sizeof(iso9660->wbuff)
- (iso9660->wbuff_tail - iso9660->wbuff_offset));
while (ext_bytes >= (int64_t)iso9660->wbuff_remaining) {
if (write_null(a, (size_t)iso9660->wbuff_remaining)
!= ARCHIVE_OK)
return (ARCHIVE_FATAL);
ext_bytes -= iso9660->wbuff_remaining;
}
if (ext_bytes > 0) {
if (write_null(a, (size_t)ext_bytes) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
}
}
return (ARCHIVE_OK);
}
#endif /* HAVE_ZLIB_H */
static int
write_null(struct archive_write *a, size_t size)
{
size_t remaining;
unsigned char *p, *old;
int r;
remaining = wb_remaining(a);
p = wb_buffptr(a);
if (size <= remaining) {
memset(p, 0, size);
return (wb_consume(a, size));
}
memset(p, 0, remaining);
r = wb_consume(a, remaining);
if (r != ARCHIVE_OK)
return (r);
size -= remaining;
old = p;
p = wb_buffptr(a);
memset(p, 0, old - p);
remaining = wb_remaining(a);
while (size) {
size_t wsize = size;
if (wsize > remaining)
wsize = remaining;
r = wb_consume(a, wsize);
if (r != ARCHIVE_OK)
return (r);
size -= wsize;
}
return (ARCHIVE_OK);
}
/*
* Write Volume Descriptor Set Terminator
*/
static int
write_VD_terminator(struct archive_write *a)
{
unsigned char *bp;
bp = wb_buffptr(a) -1;
set_VD_bp(bp, VDT_TERMINATOR, 1);
set_unused_field_bp(bp, 8, LOGICAL_BLOCK_SIZE);
return (wb_consume(a, LOGICAL_BLOCK_SIZE));
}
static int
set_file_identifier(unsigned char *bp, int from, int to, enum vdc vdc,
struct archive_write *a, struct vdd *vdd, struct archive_string *id,
const char *label, int leading_under, enum char_type char_type)
{
char identifier[256];
struct isoent *isoent;
const char *ids;
size_t len;
int r;
if (id->length > 0 && leading_under && id->s[0] != '_') {
if (char_type == A_CHAR)
r = set_str_a_characters_bp(a, bp, from, to, id->s, vdc);
else
r = set_str_d_characters_bp(a, bp, from, to, id->s, vdc);
} else if (id->length > 0) {
ids = id->s;
if (leading_under)
ids++;
isoent = isoent_find_entry(vdd->rootent, ids);
if (isoent == NULL) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Not Found %s `%s'.",
label, ids);
return (ARCHIVE_FATAL);
}
len = isoent->ext_off + isoent->ext_len;
if (vdd->vdd_type == VDD_JOLIET) {
if (len > sizeof(identifier)-2)
len = sizeof(identifier)-2;
} else {
if (len > sizeof(identifier)-1)
len = sizeof(identifier)-1;
}
memcpy(identifier, isoent->identifier, len);
identifier[len] = '\0';
if (vdd->vdd_type == VDD_JOLIET) {
identifier[len+1] = 0;
vdc = VDC_UCS2_DIRECT;
}
if (char_type == A_CHAR)
r = set_str_a_characters_bp(a, bp, from, to,
identifier, vdc);
else
r = set_str_d_characters_bp(a, bp, from, to,
identifier, vdc);
} else {
if (char_type == A_CHAR)
r = set_str_a_characters_bp(a, bp, from, to, NULL, vdc);
else
r = set_str_d_characters_bp(a, bp, from, to, NULL, vdc);
}
return (r);
}
/*
* Write Primary/Supplementary Volume Descriptor
*/
static int
write_VD(struct archive_write *a, struct vdd *vdd)
{
struct iso9660 *iso9660;
unsigned char *bp;
uint16_t volume_set_size = 1;
char identifier[256];
enum VD_type vdt;
enum vdc vdc;
unsigned char vd_ver, fst_ver;
int r;
iso9660 = a->format_data;
switch (vdd->vdd_type) {
case VDD_JOLIET:
vdt = VDT_SUPPLEMENTARY;
vd_ver = fst_ver = 1;
vdc = VDC_UCS2;
break;
case VDD_ENHANCED:
vdt = VDT_SUPPLEMENTARY;
vd_ver = fst_ver = 2;
vdc = VDC_LOWERCASE;
break;
case VDD_PRIMARY:
default:
vdt = VDT_PRIMARY;
vd_ver = fst_ver = 1;
#ifdef COMPAT_MKISOFS
vdc = VDC_LOWERCASE;
#else
vdc = VDC_STD;
#endif
break;
}
bp = wb_buffptr(a) -1;
/* Volume Descriptor Type */
set_VD_bp(bp, vdt, vd_ver);
/* Unused Field */
set_unused_field_bp(bp, 8, 8);
/* System Identifier */
get_system_identitier(identifier, sizeof(identifier));
r = set_str_a_characters_bp(a, bp, 9, 40, identifier, vdc);
if (r != ARCHIVE_OK)
return (r);
/* Volume Identifier */
r = set_str_d_characters_bp(a, bp, 41, 72,
iso9660->volume_identifier.s, vdc);
if (r != ARCHIVE_OK)
return (r);
/* Unused Field */
set_unused_field_bp(bp, 73, 80);
/* Volume Space Size */
set_num_733(bp+81, iso9660->volume_space_size);
if (vdd->vdd_type == VDD_JOLIET) {
/* Escape Sequences */
bp[89] = 0x25;/* UCS-2 Level 3 */
bp[90] = 0x2F;
bp[91] = 0x45;
memset(bp + 92, 0, 120 - 92 + 1);
} else {
/* Unused Field */
set_unused_field_bp(bp, 89, 120);
}
/* Volume Set Size */
set_num_723(bp+121, volume_set_size);
/* Volume Sequence Number */
set_num_723(bp+125, iso9660->volume_sequence_number);
/* Logical Block Size */
set_num_723(bp+129, LOGICAL_BLOCK_SIZE);
/* Path Table Size */
set_num_733(bp+133, vdd->path_table_size);
/* Location of Occurrence of Type L Path Table */
set_num_731(bp+141, vdd->location_type_L_path_table);
/* Location of Optional Occurrence of Type L Path Table */
set_num_731(bp+145, 0);
/* Location of Occurrence of Type M Path Table */
set_num_732(bp+149, vdd->location_type_M_path_table);
/* Location of Optional Occurrence of Type M Path Table */
set_num_732(bp+153, 0);
/* Directory Record for Root Directory(BP 157 to 190) */
set_directory_record(bp+157, 190-157+1, vdd->rootent,
iso9660, DIR_REC_VD, vdd->vdd_type);
/* Volume Set Identifier */
r = set_str_d_characters_bp(a, bp, 191, 318, "", vdc);
if (r != ARCHIVE_OK)
return (r);
/* Publisher Identifier */
r = set_file_identifier(bp, 319, 446, vdc, a, vdd,
&(iso9660->publisher_identifier),
"Publisher File", 1, A_CHAR);
if (r != ARCHIVE_OK)
return (r);
/* Data Preparer Identifier */
r = set_file_identifier(bp, 447, 574, vdc, a, vdd,
&(iso9660->data_preparer_identifier),
"Data Preparer File", 1, A_CHAR);
if (r != ARCHIVE_OK)
return (r);
/* Application Identifier */
r = set_file_identifier(bp, 575, 702, vdc, a, vdd,
&(iso9660->application_identifier),
"Application File", 1, A_CHAR);
if (r != ARCHIVE_OK)
return (r);
/* Copyright File Identifier */
r = set_file_identifier(bp, 703, 739, vdc, a, vdd,
&(iso9660->copyright_file_identifier),
"Copyright File", 0, D_CHAR);
if (r != ARCHIVE_OK)
return (r);
/* Abstract File Identifier */
r = set_file_identifier(bp, 740, 776, vdc, a, vdd,
&(iso9660->abstract_file_identifier),
"Abstract File", 0, D_CHAR);
if (r != ARCHIVE_OK)
return (r);
/* Bibliographic File Identifier */
r = set_file_identifier(bp, 777, 813, vdc, a, vdd,
&(iso9660->bibliographic_file_identifier),
"Bibliongraphic File", 0, D_CHAR);
if (r != ARCHIVE_OK)
return (r);
/* Volume Creation Date and Time */
set_date_time(bp+814, iso9660->birth_time);
/* Volume Modification Date and Time */
set_date_time(bp+831, iso9660->birth_time);
/* Volume Expiration Date and Time(obsolete) */
set_date_time_null(bp+848);
/* Volume Effective Date and Time */
set_date_time(bp+865, iso9660->birth_time);
/* File Structure Version */
bp[882] = fst_ver;
/* Reserved */
bp[883] = 0;
/* Application Use */
memset(bp + 884, 0x20, 1395 - 884 + 1);
/* Reserved */
set_unused_field_bp(bp, 1396, LOGICAL_BLOCK_SIZE);
return (wb_consume(a, LOGICAL_BLOCK_SIZE));
}
/*
* Write Boot Record Volume Descriptor
*/
static int
write_VD_boot_record(struct archive_write *a)
{
struct iso9660 *iso9660;
unsigned char *bp;
iso9660 = a->format_data;
bp = wb_buffptr(a) -1;
/* Volume Descriptor Type */
set_VD_bp(bp, VDT_BOOT_RECORD, 1);
/* Boot System Identifier */
memcpy(bp+8, "EL TORITO SPECIFICATION", 23);
set_unused_field_bp(bp, 8+23, 39);
/* Unused */
set_unused_field_bp(bp, 40, 71);
/* Absolute pointer to first sector of Boot Catalog */
set_num_731(bp+72,
iso9660->el_torito.catalog->file->content.location);
/* Unused */
set_unused_field_bp(bp, 76, LOGICAL_BLOCK_SIZE);
return (wb_consume(a, LOGICAL_BLOCK_SIZE));
}
enum keytype {
KEY_FLG,
KEY_STR,
KEY_INT,
KEY_HEX
};
static void
set_option_info(struct archive_string *info, int *opt, const char *key,
enum keytype type, ...)
{
va_list ap;
char prefix;
const char *s;
int d;
prefix = (*opt==0)? ' ':',';
va_start(ap, type);
switch (type) {
case KEY_FLG:
d = va_arg(ap, int);
archive_string_sprintf(info, "%c%s%s",
prefix, (d == 0)?"!":"", key);
break;
case KEY_STR:
s = va_arg(ap, const char *);
archive_string_sprintf(info, "%c%s=%s",
prefix, key, s);
break;
case KEY_INT:
d = va_arg(ap, int);
archive_string_sprintf(info, "%c%s=%d",
prefix, key, d);
break;
case KEY_HEX:
d = va_arg(ap, int);
archive_string_sprintf(info, "%c%s=%x",
prefix, key, d);
break;
}
va_end(ap);
*opt = 1;
}
/*
* Make Non-ISO File System Information
*/
static int
write_information_block(struct archive_write *a)
{
struct iso9660 *iso9660;
char buf[128];
const char *v;
int opt, r;
struct archive_string info;
size_t info_size = LOGICAL_BLOCK_SIZE *
NON_ISO_FILE_SYSTEM_INFORMATION_BLOCK;
iso9660 = (struct iso9660 *)a->format_data;
if (info_size > wb_remaining(a)) {
r = wb_write_out(a);
if (r != ARCHIVE_OK)
return (r);
}
archive_string_init(&info);
if (archive_string_ensure(&info, info_size) == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
memset(info.s, 0, info_size);
opt = 0;
#if defined(HAVE__CTIME64_S)
{
__time64_t iso9660_birth_time_tmp = (__time64_t) iso9660->birth_time; //time_t may be shorter than 64 bits
_ctime64_s(buf, sizeof(buf), &(iso9660_birth_time_tmp));
}
#elif defined(HAVE_CTIME_R)
ctime_r(&(iso9660->birth_time), buf);
#else
strncpy(buf, ctime(&(iso9660->birth_time)), sizeof(buf)-1);
buf[sizeof(buf)-1] = '\0';
#endif
archive_string_sprintf(&info,
"INFO %s%s", buf, archive_version_string());
if (iso9660->opt.abstract_file != OPT_ABSTRACT_FILE_DEFAULT)
set_option_info(&info, &opt, "abstract-file",
KEY_STR, iso9660->abstract_file_identifier.s);
if (iso9660->opt.application_id != OPT_APPLICATION_ID_DEFAULT)
set_option_info(&info, &opt, "application-id",
KEY_STR, iso9660->application_identifier.s);
if (iso9660->opt.allow_vernum != OPT_ALLOW_VERNUM_DEFAULT)
set_option_info(&info, &opt, "allow-vernum",
KEY_FLG, iso9660->opt.allow_vernum);
if (iso9660->opt.biblio_file != OPT_BIBLIO_FILE_DEFAULT)
set_option_info(&info, &opt, "biblio-file",
KEY_STR, iso9660->bibliographic_file_identifier.s);
if (iso9660->opt.boot != OPT_BOOT_DEFAULT)
set_option_info(&info, &opt, "boot",
KEY_STR, iso9660->el_torito.boot_filename.s);
if (iso9660->opt.boot_catalog != OPT_BOOT_CATALOG_DEFAULT)
set_option_info(&info, &opt, "boot-catalog",
KEY_STR, iso9660->el_torito.catalog_filename.s);
if (iso9660->opt.boot_info_table != OPT_BOOT_INFO_TABLE_DEFAULT)
set_option_info(&info, &opt, "boot-info-table",
KEY_FLG, iso9660->opt.boot_info_table);
if (iso9660->opt.boot_load_seg != OPT_BOOT_LOAD_SEG_DEFAULT)
set_option_info(&info, &opt, "boot-load-seg",
KEY_HEX, iso9660->el_torito.boot_load_seg);
if (iso9660->opt.boot_load_size != OPT_BOOT_LOAD_SIZE_DEFAULT)
set_option_info(&info, &opt, "boot-load-size",
KEY_INT, iso9660->el_torito.boot_load_size);
if (iso9660->opt.boot_type != OPT_BOOT_TYPE_DEFAULT) {
v = "no-emulation";
if (iso9660->opt.boot_type == OPT_BOOT_TYPE_FD)
v = "fd";
if (iso9660->opt.boot_type == OPT_BOOT_TYPE_HARD_DISK)
v = "hard-disk";
set_option_info(&info, &opt, "boot-type",
KEY_STR, v);
}
#ifdef HAVE_ZLIB_H
if (iso9660->opt.compression_level != OPT_COMPRESSION_LEVEL_DEFAULT)
set_option_info(&info, &opt, "compression-level",
KEY_INT, iso9660->zisofs.compression_level);
#endif
if (iso9660->opt.copyright_file != OPT_COPYRIGHT_FILE_DEFAULT)
set_option_info(&info, &opt, "copyright-file",
KEY_STR, iso9660->copyright_file_identifier.s);
if (iso9660->opt.iso_level != OPT_ISO_LEVEL_DEFAULT)
set_option_info(&info, &opt, "iso-level",
KEY_INT, iso9660->opt.iso_level);
if (iso9660->opt.joliet != OPT_JOLIET_DEFAULT) {
if (iso9660->opt.joliet == OPT_JOLIET_LONGNAME)
set_option_info(&info, &opt, "joliet",
KEY_STR, "long");
else
set_option_info(&info, &opt, "joliet",
KEY_FLG, iso9660->opt.joliet);
}
if (iso9660->opt.limit_depth != OPT_LIMIT_DEPTH_DEFAULT)
set_option_info(&info, &opt, "limit-depth",
KEY_FLG, iso9660->opt.limit_depth);
if (iso9660->opt.limit_dirs != OPT_LIMIT_DIRS_DEFAULT)
set_option_info(&info, &opt, "limit-dirs",
KEY_FLG, iso9660->opt.limit_dirs);
if (iso9660->opt.pad != OPT_PAD_DEFAULT)
set_option_info(&info, &opt, "pad",
KEY_FLG, iso9660->opt.pad);
if (iso9660->opt.publisher != OPT_PUBLISHER_DEFAULT)
set_option_info(&info, &opt, "publisher",
KEY_STR, iso9660->publisher_identifier.s);
if (iso9660->opt.rr != OPT_RR_DEFAULT) {
if (iso9660->opt.rr == OPT_RR_DISABLED)
set_option_info(&info, &opt, "rockridge",
KEY_FLG, iso9660->opt.rr);
else if (iso9660->opt.rr == OPT_RR_STRICT)
set_option_info(&info, &opt, "rockridge",
KEY_STR, "strict");
else if (iso9660->opt.rr == OPT_RR_USEFUL)
set_option_info(&info, &opt, "rockridge",
KEY_STR, "useful");
}
if (iso9660->opt.volume_id != OPT_VOLUME_ID_DEFAULT)
set_option_info(&info, &opt, "volume-id",
KEY_STR, iso9660->volume_identifier.s);
if (iso9660->opt.zisofs != OPT_ZISOFS_DEFAULT)
set_option_info(&info, &opt, "zisofs",
KEY_FLG, iso9660->opt.zisofs);
memcpy(wb_buffptr(a), info.s, info_size);
archive_string_free(&info);
return (wb_consume(a, info_size));
}
static int
write_rr_ER(struct archive_write *a)
{
unsigned char *p;
p = wb_buffptr(a);
memset(p, 0, LOGICAL_BLOCK_SIZE);
p[0] = 'E';
p[1] = 'R';
p[3] = 0x01;
p[2] = RRIP_ER_SIZE;
p[4] = RRIP_ER_ID_SIZE;
p[5] = RRIP_ER_DSC_SIZE;
p[6] = RRIP_ER_SRC_SIZE;
p[7] = 0x01;
memcpy(&p[8], rrip_identifier, p[4]);
memcpy(&p[8+p[4]], rrip_descriptor, p[5]);
memcpy(&p[8+p[4]+p[5]], rrip_source, p[6]);
return (wb_consume(a, LOGICAL_BLOCK_SIZE));
}
static void
calculate_path_table_size(struct vdd *vdd)
{
int depth, size;
struct path_table *pt;
pt = vdd->pathtbl;
size = 0;
for (depth = 0; depth < vdd->max_depth; depth++) {
struct isoent **ptbl;
int i, cnt;
if ((cnt = pt[depth].cnt) == 0)
break;
ptbl = pt[depth].sorted;
for (i = 0; i < cnt; i++) {
int len;
if (ptbl[i]->identifier == NULL)
len = 1; /* root directory */
else
len = ptbl[i]->id_len;
if (len & 0x01)
len++; /* Padding Field */
size += 8 + len;
}
}
vdd->path_table_size = size;
vdd->path_table_block =
((size + PATH_TABLE_BLOCK_SIZE -1) /
PATH_TABLE_BLOCK_SIZE) *
(PATH_TABLE_BLOCK_SIZE / LOGICAL_BLOCK_SIZE);
}
static int
_write_path_table(struct archive_write *a, int type_m, int depth,
struct vdd *vdd)
{
unsigned char *bp, *wb;
struct isoent **ptbl;
size_t wbremaining;
int i, r, wsize;
if (vdd->pathtbl[depth].cnt == 0)
return (0);
wsize = 0;
wb = wb_buffptr(a);
wbremaining = wb_remaining(a);
bp = wb - 1;
ptbl = vdd->pathtbl[depth].sorted;
for (i = 0; i < vdd->pathtbl[depth].cnt; i++) {
struct isoent *np;
size_t len;
np = ptbl[i];
if (np->identifier == NULL)
len = 1; /* root directory */
else
len = np->id_len;
if (wbremaining - ((bp+1) - wb) < (len + 1 + 8)) {
r = wb_consume(a, (bp+1) - wb);
if (r < 0)
return (r);
wb = wb_buffptr(a);
wbremaining = wb_remaining(a);
bp = wb -1;
}
/* Length of Directory Identifier */
set_num_711(bp+1, (unsigned char)len);
/* Extended Attribute Record Length */
set_num_711(bp+2, 0);
/* Location of Extent */
if (type_m)
set_num_732(bp+3, np->dir_location);
else
set_num_731(bp+3, np->dir_location);
/* Parent Directory Number */
if (type_m)
set_num_722(bp+7, np->parent->dir_number);
else
set_num_721(bp+7, np->parent->dir_number);
/* Directory Identifier */
if (np->identifier == NULL)
bp[9] = 0;
else
memcpy(&bp[9], np->identifier, len);
if (len & 0x01) {
/* Padding Field */
bp[9+len] = 0;
len++;
}
wsize += 8 + (int)len;
bp += 8 + len;
}
if ((bp + 1) > wb) {
r = wb_consume(a, (bp+1)-wb);
if (r < 0)
return (r);
}
return (wsize);
}
static int
write_path_table(struct archive_write *a, int type_m, struct vdd *vdd)
{
int depth, r;
size_t path_table_size;
r = ARCHIVE_OK;
path_table_size = 0;
for (depth = 0; depth < vdd->max_depth; depth++) {
r = _write_path_table(a, type_m, depth, vdd);
if (r < 0)
return (r);
path_table_size += r;
}
/* Write padding data. */
path_table_size = path_table_size % PATH_TABLE_BLOCK_SIZE;
if (path_table_size > 0)
r = write_null(a, PATH_TABLE_BLOCK_SIZE - path_table_size);
return (r);
}
static int
calculate_directory_descriptors(struct iso9660 *iso9660, struct vdd *vdd,
struct isoent *isoent, int depth)
{
struct isoent **enttbl;
int bs, block, i;
block = 1;
bs = get_dir_rec_size(iso9660, isoent, DIR_REC_SELF, vdd->vdd_type);
bs += get_dir_rec_size(iso9660, isoent, DIR_REC_PARENT, vdd->vdd_type);
if (isoent->children.cnt <= 0 || (vdd->vdd_type != VDD_JOLIET &&
!iso9660->opt.rr && depth + 1 >= vdd->max_depth))
return (block);
enttbl = isoent->children_sorted;
for (i = 0; i < isoent->children.cnt; i++) {
struct isoent *np = enttbl[i];
struct isofile *file;
file = np->file;
if (file->hardlink_target != NULL)
file = file->hardlink_target;
file->cur_content = &(file->content);
do {
int dr_l;
dr_l = get_dir_rec_size(iso9660, np, DIR_REC_NORMAL,
vdd->vdd_type);
if ((bs + dr_l) > LOGICAL_BLOCK_SIZE) {
block ++;
bs = dr_l;
} else
bs += dr_l;
file->cur_content = file->cur_content->next;
} while (file->cur_content != NULL);
}
return (block);
}
static int
_write_directory_descriptors(struct archive_write *a, struct vdd *vdd,
struct isoent *isoent, int depth)
{
struct iso9660 *iso9660 = a->format_data;
struct isoent **enttbl;
unsigned char *p, *wb;
int i, r;
int dr_l;
p = wb = wb_buffptr(a);
#define WD_REMAINING (LOGICAL_BLOCK_SIZE - (p - wb))
p += set_directory_record(p, WD_REMAINING, isoent,
iso9660, DIR_REC_SELF, vdd->vdd_type);
p += set_directory_record(p, WD_REMAINING, isoent,
iso9660, DIR_REC_PARENT, vdd->vdd_type);
if (isoent->children.cnt <= 0 || (vdd->vdd_type != VDD_JOLIET &&
!iso9660->opt.rr && depth + 1 >= vdd->max_depth)) {
memset(p, 0, WD_REMAINING);
return (wb_consume(a, LOGICAL_BLOCK_SIZE));
}
enttbl = isoent->children_sorted;
for (i = 0; i < isoent->children.cnt; i++) {
struct isoent *np = enttbl[i];
struct isofile *file = np->file;
if (file->hardlink_target != NULL)
file = file->hardlink_target;
file->cur_content = &(file->content);
do {
dr_l = set_directory_record(p, WD_REMAINING,
np, iso9660, DIR_REC_NORMAL,
vdd->vdd_type);
if (dr_l == 0) {
memset(p, 0, WD_REMAINING);
r = wb_consume(a, LOGICAL_BLOCK_SIZE);
if (r < 0)
return (r);
p = wb = wb_buffptr(a);
dr_l = set_directory_record(p,
WD_REMAINING, np, iso9660,
DIR_REC_NORMAL, vdd->vdd_type);
}
p += dr_l;
file->cur_content = file->cur_content->next;
} while (file->cur_content != NULL);
}
memset(p, 0, WD_REMAINING);
return (wb_consume(a, LOGICAL_BLOCK_SIZE));
}
static int
write_directory_descriptors(struct archive_write *a, struct vdd *vdd)
{
struct isoent *np;
int depth, r;
depth = 0;
np = vdd->rootent;
do {
struct extr_rec *extr;
r = _write_directory_descriptors(a, vdd, np, depth);
if (r < 0)
return (r);
if (vdd->vdd_type != VDD_JOLIET) {
/*
* This extract record is used by SUSP,RRIP.
* Not for joliet.
*/
for (extr = np->extr_rec_list.first;
extr != NULL;
extr = extr->next) {
unsigned char *wb;
wb = wb_buffptr(a);
memcpy(wb, extr->buf, extr->offset);
memset(wb + extr->offset, 0,
LOGICAL_BLOCK_SIZE - extr->offset);
r = wb_consume(a, LOGICAL_BLOCK_SIZE);
if (r < 0)
return (r);
}
}
if (np->subdirs.first != NULL && depth + 1 < vdd->max_depth) {
/* Enter to sub directories. */
np = np->subdirs.first;
depth++;
continue;
}
while (np != np->parent) {
if (np->drnext == NULL) {
/* Return to the parent directory. */
np = np->parent;
depth--;
} else {
np = np->drnext;
break;
}
}
} while (np != np->parent);
return (ARCHIVE_OK);
}
/*
* Read file contents from the temporary file, and write it.
*/
static int
write_file_contents(struct archive_write *a, int64_t offset, int64_t size)
{
struct iso9660 *iso9660 = a->format_data;
int r;
lseek(iso9660->temp_fd, offset, SEEK_SET);
while (size) {
size_t rsize;
ssize_t rs;
unsigned char *wb;
wb = wb_buffptr(a);
rsize = wb_remaining(a);
if (rsize > (size_t)size)
rsize = (size_t)size;
rs = read(iso9660->temp_fd, wb, rsize);
if (rs <= 0) {
archive_set_error(&a->archive, errno,
"Can't read temporary file(%jd)", (intmax_t)rs);
return (ARCHIVE_FATAL);
}
size -= rs;
r = wb_consume(a, rs);
if (r < 0)
return (r);
}
return (ARCHIVE_OK);
}
static int
write_file_descriptors(struct archive_write *a)
{
struct iso9660 *iso9660 = a->format_data;
struct isofile *file;
int64_t blocks, offset;
int r;
blocks = 0;
offset = 0;
/* Make the boot catalog contents, and write it. */
if (iso9660->el_torito.catalog != NULL) {
r = make_boot_catalog(a);
if (r < 0)
return (r);
}
/* Write the boot file contents. */
if (iso9660->el_torito.boot != NULL) {
file = iso9660->el_torito.boot->file;
blocks = file->content.blocks;
offset = file->content.offset_of_temp;
if (offset != 0) {
r = write_file_contents(a, offset,
blocks << LOGICAL_BLOCK_BITS);
if (r < 0)
return (r);
blocks = 0;
offset = 0;
}
}
/* Write out all file contents. */
for (file = iso9660->data_file_list.first;
file != NULL; file = file->datanext) {
if (!file->write_content)
continue;
if ((offset + (blocks << LOGICAL_BLOCK_BITS)) <
file->content.offset_of_temp) {
if (blocks > 0) {
r = write_file_contents(a, offset,
blocks << LOGICAL_BLOCK_BITS);
if (r < 0)
return (r);
}
blocks = 0;
offset = file->content.offset_of_temp;
}
file->cur_content = &(file->content);
do {
blocks += file->cur_content->blocks;
/* Next fragment */
file->cur_content = file->cur_content->next;
} while (file->cur_content != NULL);
}
/* Flush out remaining blocks. */
if (blocks > 0) {
r = write_file_contents(a, offset,
blocks << LOGICAL_BLOCK_BITS);
if (r < 0)
return (r);
}
return (ARCHIVE_OK);
}
static void
isofile_init_entry_list(struct iso9660 *iso9660)
{
iso9660->all_file_list.first = NULL;
iso9660->all_file_list.last = &(iso9660->all_file_list.first);
}
static void
isofile_add_entry(struct iso9660 *iso9660, struct isofile *file)
{
file->allnext = NULL;
*iso9660->all_file_list.last = file;
iso9660->all_file_list.last = &(file->allnext);
}
static void
isofile_free_all_entries(struct iso9660 *iso9660)
{
struct isofile *file, *file_next;
file = iso9660->all_file_list.first;
while (file != NULL) {
file_next = file->allnext;
isofile_free(file);
file = file_next;
}
}
static void
isofile_init_entry_data_file_list(struct iso9660 *iso9660)
{
iso9660->data_file_list.first = NULL;
iso9660->data_file_list.last = &(iso9660->data_file_list.first);
}
static void
isofile_add_data_file(struct iso9660 *iso9660, struct isofile *file)
{
file->datanext = NULL;
*iso9660->data_file_list.last = file;
iso9660->data_file_list.last = &(file->datanext);
}
static struct isofile *
isofile_new(struct archive_write *a, struct archive_entry *entry)
{
struct isofile *file;
file = calloc(1, sizeof(*file));
if (file == NULL)
return (NULL);
if (entry != NULL)
file->entry = archive_entry_clone(entry);
else
file->entry = archive_entry_new2(&a->archive);
if (file->entry == NULL) {
free(file);
return (NULL);
}
archive_string_init(&(file->parentdir));
archive_string_init(&(file->basename));
archive_string_init(&(file->basename_utf16));
archive_string_init(&(file->symlink));
file->cur_content = &(file->content);
return (file);
}
static void
isofile_free(struct isofile *file)
{
struct content *con, *tmp;
con = file->content.next;
while (con != NULL) {
tmp = con;
con = con->next;
free(tmp);
}
archive_entry_free(file->entry);
archive_string_free(&(file->parentdir));
archive_string_free(&(file->basename));
archive_string_free(&(file->basename_utf16));
archive_string_free(&(file->symlink));
free(file);
}
#if defined(_WIN32) || defined(__CYGWIN__)
static int
cleanup_backslash_1(char *p)
{
int mb, dos;
mb = dos = 0;
while (*p) {
if (*(unsigned char *)p > 127)
mb = 1;
if (*p == '\\') {
/* If we have not met any multi-byte characters,
* we can replace '\' with '/'. */
if (!mb)
*p = '/';
dos = 1;
}
p++;
}
if (!mb || !dos)
return (0);
return (-1);
}
static void
cleanup_backslash_2(wchar_t *p)
{
/* Convert a path-separator from '\' to '/' */
while (*p != L'\0') {
if (*p == L'\\')
*p = L'/';
p++;
}
}
#endif
/*
* Generate a parent directory name and a base name from a pathname.
*/
static int
isofile_gen_utility_names(struct archive_write *a, struct isofile *file)
{
struct iso9660 *iso9660;
const char *pathname;
char *p, *dirname, *slash;
size_t len;
int ret = ARCHIVE_OK;
iso9660 = a->format_data;
archive_string_empty(&(file->parentdir));
archive_string_empty(&(file->basename));
archive_string_empty(&(file->basename_utf16));
archive_string_empty(&(file->symlink));
pathname = archive_entry_pathname(file->entry);
if (pathname == NULL || pathname[0] == '\0') {/* virtual root */
file->dircnt = 0;
return (ret);
}
/*
* Make a UTF-16BE basename if Joliet extension enabled.
*/
if (iso9660->opt.joliet) {
const char *u16, *ulast;
size_t u16len, ulen_last;
if (iso9660->sconv_to_utf16be == NULL) {
iso9660->sconv_to_utf16be =
archive_string_conversion_to_charset(
&(a->archive), "UTF-16BE", 1);
if (iso9660->sconv_to_utf16be == NULL)
/* Couldn't allocate memory */
return (ARCHIVE_FATAL);
iso9660->sconv_from_utf16be =
archive_string_conversion_from_charset(
&(a->archive), "UTF-16BE", 1);
if (iso9660->sconv_from_utf16be == NULL)
/* Couldn't allocate memory */
return (ARCHIVE_FATAL);
}
/*
* Convert a filename to UTF-16BE.
*/
if (0 > archive_entry_pathname_l(file->entry, &u16, &u16len,
iso9660->sconv_to_utf16be)) {
if (errno == ENOMEM) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory for UTF-16BE");
return (ARCHIVE_FATAL);
}
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"A filename cannot be converted to UTF-16BE;"
"You should disable making Joliet extension");
ret = ARCHIVE_WARN;
}
/*
* Make sure a path separator is not in the last;
* Remove trailing '/'.
*/
while (u16len >= 2) {
#if defined(_WIN32) || defined(__CYGWIN__)
if (u16[u16len-2] == 0 &&
(u16[u16len-1] == '/' || u16[u16len-1] == '\\'))
#else
if (u16[u16len-2] == 0 && u16[u16len-1] == '/')
#endif
{
u16len -= 2;
} else
break;
}
/*
* Find a basename in UTF-16BE.
*/
ulast = u16;
u16len >>= 1;
ulen_last = u16len;
while (u16len > 0) {
#if defined(_WIN32) || defined(__CYGWIN__)
if (u16[0] == 0 && (u16[1] == '/' || u16[1] == '\\'))
#else
if (u16[0] == 0 && u16[1] == '/')
#endif
{
ulast = u16 + 2;
ulen_last = u16len -1;
}
u16 += 2;
u16len --;
}
ulen_last <<= 1;
if (archive_string_ensure(&(file->basename_utf16),
ulen_last) == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory for UTF-16BE");
return (ARCHIVE_FATAL);
}
/*
* Set UTF-16BE basename.
*/
memcpy(file->basename_utf16.s, ulast, ulen_last);
file->basename_utf16.length = ulen_last;
}
archive_strcpy(&(file->parentdir), pathname);
#if defined(_WIN32) || defined(__CYGWIN__)
/*
* Convert a path-separator from '\' to '/'
*/
if (cleanup_backslash_1(file->parentdir.s) != 0) {
const wchar_t *wp = archive_entry_pathname_w(file->entry);
struct archive_wstring ws;
if (wp != NULL) {
int r;
archive_string_init(&ws);
archive_wstrcpy(&ws, wp);
cleanup_backslash_2(ws.s);
archive_string_empty(&(file->parentdir));
r = archive_string_append_from_wcs(&(file->parentdir),
ws.s, ws.length);
archive_wstring_free(&ws);
if (r < 0 && errno == ENOMEM) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
}
}
#endif
len = file->parentdir.length;
p = dirname = file->parentdir.s;
/*
* Remove leading '/', '../' and './' elements
*/
while (*p) {
if (p[0] == '/') {
p++;
len--;
} else if (p[0] != '.')
break;
else if (p[1] == '.' && p[2] == '/') {
p += 3;
len -= 3;
} else if (p[1] == '/' || (p[1] == '.' && p[2] == '\0')) {
p += 2;
len -= 2;
} else if (p[1] == '\0') {
p++;
len--;
} else
break;
}
if (p != dirname) {
memmove(dirname, p, len+1);
p = dirname;
}
/*
* Remove "/","/." and "/.." elements from tail.
*/
while (len > 0) {
size_t ll = len;
if (len > 0 && p[len-1] == '/') {
p[len-1] = '\0';
len--;
}
if (len > 1 && p[len-2] == '/' && p[len-1] == '.') {
p[len-2] = '\0';
len -= 2;
}
if (len > 2 && p[len-3] == '/' && p[len-2] == '.' &&
p[len-1] == '.') {
p[len-3] = '\0';
len -= 3;
}
if (ll == len)
break;
}
while (*p) {
if (p[0] == '/') {
if (p[1] == '/')
/* Convert '//' --> '/' */
strcpy(p, p+1);
else if (p[1] == '.' && p[2] == '/')
/* Convert '/./' --> '/' */
strcpy(p, p+2);
else if (p[1] == '.' && p[2] == '.' && p[3] == '/') {
/* Convert 'dir/dir1/../dir2/'
* --> 'dir/dir2/'
*/
char *rp = p -1;
while (rp >= dirname) {
if (*rp == '/')
break;
--rp;
}
if (rp > dirname) {
strcpy(rp, p+3);
p = rp;
} else {
strcpy(dirname, p+4);
p = dirname;
}
} else
p++;
} else
p++;
}
p = dirname;
len = strlen(p);
if (archive_entry_filetype(file->entry) == AE_IFLNK) {
/* Convert symlink name too. */
pathname = archive_entry_symlink(file->entry);
archive_strcpy(&(file->symlink), pathname);
#if defined(_WIN32) || defined(__CYGWIN__)
/*
* Convert a path-separator from '\' to '/'
*/
if (archive_strlen(&(file->symlink)) > 0 &&
cleanup_backslash_1(file->symlink.s) != 0) {
const wchar_t *wp =
archive_entry_symlink_w(file->entry);
struct archive_wstring ws;
if (wp != NULL) {
int r;
archive_string_init(&ws);
archive_wstrcpy(&ws, wp);
cleanup_backslash_2(ws.s);
archive_string_empty(&(file->symlink));
r = archive_string_append_from_wcs(
&(file->symlink),
ws.s, ws.length);
archive_wstring_free(&ws);
if (r < 0 && errno == ENOMEM) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
}
}
#endif
}
/*
* - Count up directory elements.
* - Find out the position which points the last position of
* path separator('/').
*/
slash = NULL;
file->dircnt = 0;
for (; *p != '\0'; p++)
if (*p == '/') {
slash = p;
file->dircnt++;
}
if (slash == NULL) {
/* The pathname doesn't have a parent directory. */
file->parentdir.length = len;
archive_string_copy(&(file->basename), &(file->parentdir));
archive_string_empty(&(file->parentdir));
*file->parentdir.s = '\0';
return (ret);
}
/* Make a basename from dirname and slash */
*slash = '\0';
file->parentdir.length = slash - dirname;
archive_strcpy(&(file->basename), slash + 1);
if (archive_entry_filetype(file->entry) == AE_IFDIR)
file->dircnt ++;
return (ret);
}
/*
* Register a entry to get a hardlink target.
*/
static int
isofile_register_hardlink(struct archive_write *a, struct isofile *file)
{
struct iso9660 *iso9660 = a->format_data;
struct hardlink *hl;
const char *pathname;
archive_entry_set_nlink(file->entry, 1);
pathname = archive_entry_hardlink(file->entry);
if (pathname == NULL) {
/* This `file` is a hardlink target. */
hl = malloc(sizeof(*hl));
if (hl == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
hl->nlink = 1;
/* A hardlink target must be the first position. */
file->hlnext = NULL;
hl->file_list.first = file;
hl->file_list.last = &(file->hlnext);
__archive_rb_tree_insert_node(&(iso9660->hardlink_rbtree),
(struct archive_rb_node *)hl);
} else {
hl = (struct hardlink *)__archive_rb_tree_find_node(
&(iso9660->hardlink_rbtree), pathname);
if (hl != NULL) {
/* Insert `file` entry into the tail. */
file->hlnext = NULL;
*hl->file_list.last = file;
hl->file_list.last = &(file->hlnext);
hl->nlink++;
}
archive_entry_unset_size(file->entry);
}
return (ARCHIVE_OK);
}
/*
* Hardlinked files have to have the same location of extent.
* We have to find out hardlink target entries for the entries
* which have a hardlink target name.
*/
static void
isofile_connect_hardlink_files(struct iso9660 *iso9660)
{
struct archive_rb_node *n;
struct hardlink *hl;
struct isofile *target, *nf;
ARCHIVE_RB_TREE_FOREACH(n, &(iso9660->hardlink_rbtree)) {
hl = (struct hardlink *)n;
/* The first entry must be a hardlink target. */
target = hl->file_list.first;
archive_entry_set_nlink(target->entry, hl->nlink);
/* Set a hardlink target to reference entries. */
for (nf = target->hlnext;
nf != NULL; nf = nf->hlnext) {
nf->hardlink_target = target;
archive_entry_set_nlink(nf->entry, hl->nlink);
}
}
}
static int
isofile_hd_cmp_node(const struct archive_rb_node *n1,
const struct archive_rb_node *n2)
{
const struct hardlink *h1 = (const struct hardlink *)n1;
const struct hardlink *h2 = (const struct hardlink *)n2;
return (strcmp(archive_entry_pathname(h1->file_list.first->entry),
archive_entry_pathname(h2->file_list.first->entry)));
}
static int
isofile_hd_cmp_key(const struct archive_rb_node *n, const void *key)
{
const struct hardlink *h = (const struct hardlink *)n;
return (strcmp(archive_entry_pathname(h->file_list.first->entry),
(const char *)key));
}
static void
isofile_init_hardlinks(struct iso9660 *iso9660)
{
static const struct archive_rb_tree_ops rb_ops = {
isofile_hd_cmp_node, isofile_hd_cmp_key,
};
__archive_rb_tree_init(&(iso9660->hardlink_rbtree), &rb_ops);
}
static void
isofile_free_hardlinks(struct iso9660 *iso9660)
{
struct archive_rb_node *n, *next;
for (n = ARCHIVE_RB_TREE_MIN(&(iso9660->hardlink_rbtree)); n;) {
next = __archive_rb_tree_iterate(&(iso9660->hardlink_rbtree),
n, ARCHIVE_RB_DIR_RIGHT);
free(n);
n = next;
}
}
static struct isoent *
isoent_new(struct isofile *file)
{
struct isoent *isoent;
static const struct archive_rb_tree_ops rb_ops = {
isoent_cmp_node, isoent_cmp_key,
};
isoent = calloc(1, sizeof(*isoent));
if (isoent == NULL)
return (NULL);
isoent->file = file;
isoent->children.first = NULL;
isoent->children.last = &(isoent->children.first);
__archive_rb_tree_init(&(isoent->rbtree), &rb_ops);
isoent->subdirs.first = NULL;
isoent->subdirs.last = &(isoent->subdirs.first);
isoent->extr_rec_list.first = NULL;
isoent->extr_rec_list.last = &(isoent->extr_rec_list.first);
isoent->extr_rec_list.current = NULL;
if (archive_entry_filetype(file->entry) == AE_IFDIR)
isoent->dir = 1;
return (isoent);
}
static inline struct isoent *
isoent_clone(struct isoent *src)
{
return (isoent_new(src->file));
}
static void
_isoent_free(struct isoent *isoent)
{
struct extr_rec *er, *er_next;
free(isoent->children_sorted);
free(isoent->identifier);
er = isoent->extr_rec_list.first;
while (er != NULL) {
er_next = er->next;
free(er);
er = er_next;
}
free(isoent);
}
static void
isoent_free_all(struct isoent *isoent)
{
struct isoent *np, *np_temp;
if (isoent == NULL)
return;
np = isoent;
for (;;) {
if (np->dir) {
if (np->children.first != NULL) {
/* Enter to sub directories. */
np = np->children.first;
continue;
}
}
for (;;) {
np_temp = np;
if (np->chnext == NULL) {
/* Return to the parent directory. */
np = np->parent;
_isoent_free(np_temp);
if (np == np_temp)
return;
} else {
np = np->chnext;
_isoent_free(np_temp);
break;
}
}
}
}
static struct isoent *
isoent_create_virtual_dir(struct archive_write *a, struct iso9660 *iso9660, const char *pathname)
{
struct isofile *file;
struct isoent *isoent;
file = isofile_new(a, NULL);
if (file == NULL)
return (NULL);
archive_entry_set_pathname(file->entry, pathname);
archive_entry_unset_mtime(file->entry);
archive_entry_unset_atime(file->entry);
archive_entry_unset_ctime(file->entry);
archive_entry_set_uid(file->entry, getuid());
archive_entry_set_gid(file->entry, getgid());
archive_entry_set_mode(file->entry, 0555 | AE_IFDIR);
archive_entry_set_nlink(file->entry, 2);
if (isofile_gen_utility_names(a, file) < ARCHIVE_WARN) {
isofile_free(file);
return (NULL);
}
isofile_add_entry(iso9660, file);
isoent = isoent_new(file);
if (isoent == NULL)
return (NULL);
isoent->dir = 1;
isoent->virtual = 1;
return (isoent);
}
static int
isoent_cmp_node(const struct archive_rb_node *n1,
const struct archive_rb_node *n2)
{
const struct isoent *e1 = (const struct isoent *)n1;
const struct isoent *e2 = (const struct isoent *)n2;
return (strcmp(e1->file->basename.s, e2->file->basename.s));
}
static int
isoent_cmp_key(const struct archive_rb_node *n, const void *key)
{
const struct isoent *e = (const struct isoent *)n;
return (strcmp(e->file->basename.s, (const char *)key));
}
static int
isoent_add_child_head(struct isoent *parent, struct isoent *child)
{
if (!__archive_rb_tree_insert_node(
&(parent->rbtree), (struct archive_rb_node *)child))
return (0);
if ((child->chnext = parent->children.first) == NULL)
parent->children.last = &(child->chnext);
parent->children.first = child;
parent->children.cnt++;
child->parent = parent;
/* Add a child to a sub-directory chain */
if (child->dir) {
if ((child->drnext = parent->subdirs.first) == NULL)
parent->subdirs.last = &(child->drnext);
parent->subdirs.first = child;
parent->subdirs.cnt++;
child->parent = parent;
} else
child->drnext = NULL;
return (1);
}
static int
isoent_add_child_tail(struct isoent *parent, struct isoent *child)
{
if (!__archive_rb_tree_insert_node(
&(parent->rbtree), (struct archive_rb_node *)child))
return (0);
child->chnext = NULL;
*parent->children.last = child;
parent->children.last = &(child->chnext);
parent->children.cnt++;
child->parent = parent;
/* Add a child to a sub-directory chain */
child->drnext = NULL;
if (child->dir) {
*parent->subdirs.last = child;
parent->subdirs.last = &(child->drnext);
parent->subdirs.cnt++;
child->parent = parent;
}
return (1);
}
static void
isoent_remove_child(struct isoent *parent, struct isoent *child)
{
struct isoent *ent;
/* Remove a child entry from children chain. */
ent = parent->children.first;
while (ent->chnext != child)
ent = ent->chnext;
if ((ent->chnext = ent->chnext->chnext) == NULL)
parent->children.last = &(ent->chnext);
parent->children.cnt--;
if (child->dir) {
/* Remove a child entry from sub-directory chain. */
ent = parent->subdirs.first;
while (ent->drnext != child)
ent = ent->drnext;
if ((ent->drnext = ent->drnext->drnext) == NULL)
parent->subdirs.last = &(ent->drnext);
parent->subdirs.cnt--;
}
__archive_rb_tree_remove_node(&(parent->rbtree),
(struct archive_rb_node *)child);
}
static int
isoent_clone_tree(struct archive_write *a, struct isoent **nroot,
struct isoent *root)
{
struct isoent *np, *xroot, *newent;
np = root;
xroot = NULL;
do {
newent = isoent_clone(np);
if (newent == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
if (xroot == NULL) {
*nroot = xroot = newent;
newent->parent = xroot;
} else
isoent_add_child_tail(xroot, newent);
if (np->dir && np->children.first != NULL) {
/* Enter to sub directories. */
np = np->children.first;
xroot = newent;
continue;
}
while (np != np->parent) {
if (np->chnext == NULL) {
/* Return to the parent directory. */
np = np->parent;
xroot = xroot->parent;
} else {
np = np->chnext;
break;
}
}
} while (np != np->parent);
return (ARCHIVE_OK);
}
/*
* Setup directory locations.
*/
static void
isoent_setup_directory_location(struct iso9660 *iso9660, int location,
struct vdd *vdd)
{
struct isoent *np;
int depth;
vdd->total_dir_block = 0;
depth = 0;
np = vdd->rootent;
do {
int block;
np->dir_block = calculate_directory_descriptors(
iso9660, vdd, np, depth);
vdd->total_dir_block += np->dir_block;
np->dir_location = location;
location += np->dir_block;
block = extra_setup_location(np, location);
vdd->total_dir_block += block;
location += block;
if (np->subdirs.first != NULL && depth + 1 < vdd->max_depth) {
/* Enter to sub directories. */
np = np->subdirs.first;
depth++;
continue;
}
while (np != np->parent) {
if (np->drnext == NULL) {
/* Return to the parent directory. */
np = np->parent;
depth--;
} else {
np = np->drnext;
break;
}
}
} while (np != np->parent);
}
static void
_isoent_file_location(struct iso9660 *iso9660, struct isoent *isoent,
int *symlocation)
{
struct isoent **children;
int n;
if (isoent->children.cnt == 0)
return;
children = isoent->children_sorted;
for (n = 0; n < isoent->children.cnt; n++) {
struct isoent *np;
struct isofile *file;
np = children[n];
if (np->dir)
continue;
if (np == iso9660->el_torito.boot)
continue;
file = np->file;
if (file->boot || file->hardlink_target != NULL)
continue;
if (archive_entry_filetype(file->entry) == AE_IFLNK ||
file->content.size == 0) {
/*
* Do not point a valid location.
* Make sure entry is not hardlink file.
*/
file->content.location = (*symlocation)--;
continue;
}
file->write_content = 1;
}
}
/*
* Setup file locations.
*/
static void
isoent_setup_file_location(struct iso9660 *iso9660, int location)
{
struct isoent *isoent;
struct isoent *np;
struct isofile *file;
size_t size;
int block;
int depth;
int joliet;
int symlocation;
int total_block;
iso9660->total_file_block = 0;
if ((isoent = iso9660->el_torito.catalog) != NULL) {
isoent->file->content.location = location;
block = (int)((archive_entry_size(isoent->file->entry) +
LOGICAL_BLOCK_SIZE -1) >> LOGICAL_BLOCK_BITS);
location += block;
iso9660->total_file_block += block;
}
if ((isoent = iso9660->el_torito.boot) != NULL) {
isoent->file->content.location = location;
size = fd_boot_image_size(iso9660->el_torito.media_type);
if (size == 0)
size = (size_t)archive_entry_size(isoent->file->entry);
block = ((int)size + LOGICAL_BLOCK_SIZE -1)
>> LOGICAL_BLOCK_BITS;
location += block;
iso9660->total_file_block += block;
isoent->file->content.blocks = block;
}
depth = 0;
symlocation = -16;
if (!iso9660->opt.rr && iso9660->opt.joliet) {
joliet = 1;
np = iso9660->joliet.rootent;
} else {
joliet = 0;
np = iso9660->primary.rootent;
}
do {
_isoent_file_location(iso9660, np, &symlocation);
if (np->subdirs.first != NULL &&
(joliet ||
((iso9660->opt.rr == OPT_RR_DISABLED &&
depth + 2 < iso9660->primary.max_depth) ||
(iso9660->opt.rr &&
depth + 1 < iso9660->primary.max_depth)))) {
/* Enter to sub directories. */
np = np->subdirs.first;
depth++;
continue;
}
while (np != np->parent) {
if (np->drnext == NULL) {
/* Return to the parent directory. */
np = np->parent;
depth--;
} else {
np = np->drnext;
break;
}
}
} while (np != np->parent);
total_block = 0;
for (file = iso9660->data_file_list.first;
file != NULL; file = file->datanext) {
if (!file->write_content)
continue;
file->cur_content = &(file->content);
do {
file->cur_content->location = location;
location += file->cur_content->blocks;
total_block += file->cur_content->blocks;
/* Next fragment */
file->cur_content = file->cur_content->next;
} while (file->cur_content != NULL);
}
iso9660->total_file_block += total_block;
}
static int
get_path_component(char *name, size_t n, const char *fn)
{
char *p;
size_t l;
p = strchr(fn, '/');
if (p == NULL) {
if ((l = strlen(fn)) == 0)
return (0);
} else
l = p - fn;
if (l > n -1)
return (-1);
memcpy(name, fn, l);
name[l] = '\0';
return ((int)l);
}
/*
* Add a new entry into the tree.
*/
static int
isoent_tree(struct archive_write *a, struct isoent **isoentpp)
{
#if defined(_WIN32) && !defined(__CYGWIN__)
char name[_MAX_FNAME];/* Included null terminator size. */
#elif defined(NAME_MAX) && NAME_MAX >= 255
char name[NAME_MAX+1];
#else
char name[256];
#endif
struct iso9660 *iso9660 = a->format_data;
struct isoent *dent, *isoent, *np;
struct isofile *f1, *f2;
const char *fn, *p;
int l;
isoent = *isoentpp;
dent = iso9660->primary.rootent;
if (isoent->file->parentdir.length > 0)
fn = p = isoent->file->parentdir.s;
else
fn = p = "";
/*
* If the path of the parent directory of `isoent' entry is
* the same as the path of `cur_dirent', add isoent to
* `cur_dirent'.
*/
if (archive_strlen(&(iso9660->cur_dirstr))
== archive_strlen(&(isoent->file->parentdir)) &&
strcmp(iso9660->cur_dirstr.s, fn) == 0) {
if (!isoent_add_child_tail(iso9660->cur_dirent, isoent)) {
np = (struct isoent *)__archive_rb_tree_find_node(
&(iso9660->cur_dirent->rbtree),
isoent->file->basename.s);
goto same_entry;
}
return (ARCHIVE_OK);
}
for (;;) {
l = get_path_component(name, sizeof(name), fn);
if (l == 0) {
np = NULL;
break;
}
if (l < 0) {
archive_set_error(&a->archive,
ARCHIVE_ERRNO_MISC,
"A name buffer is too small");
_isoent_free(isoent);
return (ARCHIVE_FATAL);
}
np = isoent_find_child(dent, name);
if (np == NULL || fn[0] == '\0')
break;
/* Find next subdirectory. */
if (!np->dir) {
/* NOT Directory! */
archive_set_error(&a->archive,
ARCHIVE_ERRNO_MISC,
"`%s' is not directory, we cannot insert `%s' ",
archive_entry_pathname(np->file->entry),
archive_entry_pathname(isoent->file->entry));
_isoent_free(isoent);
*isoentpp = NULL;
return (ARCHIVE_FAILED);
}
fn += l;
if (fn[0] == '/')
fn++;
dent = np;
}
if (np == NULL) {
/*
* Create virtual parent directories.
*/
while (fn[0] != '\0') {
struct isoent *vp;
struct archive_string as;
archive_string_init(&as);
archive_strncat(&as, p, fn - p + l);
if (as.s[as.length-1] == '/') {
as.s[as.length-1] = '\0';
as.length--;
}
vp = isoent_create_virtual_dir(a, iso9660, as.s);
if (vp == NULL) {
archive_string_free(&as);
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
_isoent_free(isoent);
*isoentpp = NULL;
return (ARCHIVE_FATAL);
}
archive_string_free(&as);
if (vp->file->dircnt > iso9660->dircnt_max)
iso9660->dircnt_max = vp->file->dircnt;
isoent_add_child_tail(dent, vp);
np = vp;
fn += l;
if (fn[0] == '/')
fn++;
l = get_path_component(name, sizeof(name), fn);
if (l < 0) {
archive_string_free(&as);
archive_set_error(&a->archive,
ARCHIVE_ERRNO_MISC,
"A name buffer is too small");
_isoent_free(isoent);
*isoentpp = NULL;
return (ARCHIVE_FATAL);
}
dent = np;
}
/* Found out the parent directory where isoent can be
* inserted. */
iso9660->cur_dirent = dent;
archive_string_empty(&(iso9660->cur_dirstr));
archive_string_ensure(&(iso9660->cur_dirstr),
archive_strlen(&(dent->file->parentdir)) +
archive_strlen(&(dent->file->basename)) + 2);
if (archive_strlen(&(dent->file->parentdir)) +
archive_strlen(&(dent->file->basename)) == 0)
iso9660->cur_dirstr.s[0] = 0;
else {
if (archive_strlen(&(dent->file->parentdir)) > 0) {
archive_string_copy(&(iso9660->cur_dirstr),
&(dent->file->parentdir));
archive_strappend_char(&(iso9660->cur_dirstr), '/');
}
archive_string_concat(&(iso9660->cur_dirstr),
&(dent->file->basename));
}
if (!isoent_add_child_tail(dent, isoent)) {
np = (struct isoent *)__archive_rb_tree_find_node(
&(dent->rbtree), isoent->file->basename.s);
goto same_entry;
}
return (ARCHIVE_OK);
}
same_entry:
/*
* We have already has the entry the filename of which is
* the same.
*/
f1 = np->file;
f2 = isoent->file;
/* If the file type of entries is different,
* we cannot handle it. */
if (archive_entry_filetype(f1->entry) !=
archive_entry_filetype(f2->entry)) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Found duplicate entries `%s' and its file type is "
"different",
archive_entry_pathname(f1->entry));
_isoent_free(isoent);
*isoentpp = NULL;
return (ARCHIVE_FAILED);
}
/* Swap file entries. */
np->file = f2;
isoent->file = f1;
np->virtual = 0;
_isoent_free(isoent);
*isoentpp = np;
return (ARCHIVE_OK);
}
/*
* Find a entry from `isoent'
*/
static struct isoent *
isoent_find_child(struct isoent *isoent, const char *child_name)
{
struct isoent *np;
np = (struct isoent *)__archive_rb_tree_find_node(
&(isoent->rbtree), child_name);
return (np);
}
/*
* Find a entry full-path of which is specified by `fn' parameter,
* in the tree.
*/
static struct isoent *
isoent_find_entry(struct isoent *rootent, const char *fn)
{
#if defined(_WIN32) && !defined(__CYGWIN__)
char name[_MAX_FNAME];/* Included null terminator size. */
#elif defined(NAME_MAX) && NAME_MAX >= 255
char name[NAME_MAX+1];
#else
char name[256];
#endif
struct isoent *isoent, *np;
int l;
isoent = rootent;
np = NULL;
for (;;) {
l = get_path_component(name, sizeof(name), fn);
if (l == 0)
break;
fn += l;
if (fn[0] == '/')
fn++;
np = isoent_find_child(isoent, name);
if (np == NULL)
break;
if (fn[0] == '\0')
break;/* We found out the entry */
/* Try sub directory. */
isoent = np;
np = NULL;
if (!isoent->dir)
break;/* Not directory */
}
return (np);
}
/*
* Following idr_* functions are used for resolving duplicated filenames
* and unreceivable filenames to generate ISO9660/Joliet Identifiers.
*/
static void
idr_relaxed_filenames(char *map)
{
int i;
for (i = 0x21; i <= 0x2F; i++)
map[i] = 1;
for (i = 0x3A; i <= 0x41; i++)
map[i] = 1;
for (i = 0x5B; i <= 0x5E; i++)
map[i] = 1;
map[0x60] = 1;
for (i = 0x7B; i <= 0x7E; i++)
map[i] = 1;
}
static void
idr_init(struct iso9660 *iso9660, struct vdd *vdd, struct idr *idr)
{
idr->idrent_pool = NULL;
idr->pool_size = 0;
if (vdd->vdd_type != VDD_JOLIET) {
if (iso9660->opt.iso_level <= 3) {
memcpy(idr->char_map, d_characters_map,
sizeof(idr->char_map));
} else {
memcpy(idr->char_map, d1_characters_map,
sizeof(idr->char_map));
idr_relaxed_filenames(idr->char_map);
}
}
}
static void
idr_cleanup(struct idr *idr)
{
free(idr->idrent_pool);
}
static int
idr_ensure_poolsize(struct archive_write *a, struct idr *idr,
int cnt)
{
if (idr->pool_size < cnt) {
void *p;
const int bk = (1 << 7) - 1;
int psize;
psize = (cnt + bk) & ~bk;
p = realloc(idr->idrent_pool, sizeof(struct idrent) * psize);
if (p == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
idr->idrent_pool = (struct idrent *)p;
idr->pool_size = psize;
}
return (ARCHIVE_OK);
}
static int
idr_start(struct archive_write *a, struct idr *idr, int cnt, int ffmax,
int num_size, int null_size, const struct archive_rb_tree_ops *rbt_ops)
{
int r;
(void)ffmax; /* UNUSED */
r = idr_ensure_poolsize(a, idr, cnt);
if (r != ARCHIVE_OK)
return (r);
__archive_rb_tree_init(&(idr->rbtree), rbt_ops);
idr->wait_list.first = NULL;
idr->wait_list.last = &(idr->wait_list.first);
idr->pool_idx = 0;
idr->num_size = num_size;
idr->null_size = null_size;
return (ARCHIVE_OK);
}
static void
idr_register(struct idr *idr, struct isoent *isoent, int weight, int noff)
{
struct idrent *idrent, *n;
idrent = &(idr->idrent_pool[idr->pool_idx++]);
idrent->wnext = idrent->avail = NULL;
idrent->isoent = isoent;
idrent->weight = weight;
idrent->noff = noff;
idrent->rename_num = 0;
if (!__archive_rb_tree_insert_node(&(idr->rbtree), &(idrent->rbnode))) {
n = (struct idrent *)__archive_rb_tree_find_node(
&(idr->rbtree), idrent->isoent);
if (n != NULL) {
/* this `idrent' needs to rename. */
idrent->avail = n;
*idr->wait_list.last = idrent;
idr->wait_list.last = &(idrent->wnext);
}
}
}
static void
idr_extend_identifier(struct idrent *wnp, int numsize, int nullsize)
{
unsigned char *p;
int wnp_ext_off;
wnp_ext_off = wnp->isoent->ext_off;
if (wnp->noff + numsize != wnp_ext_off) {
p = (unsigned char *)wnp->isoent->identifier;
/* Extend the filename; foo.c --> foo___.c */
memmove(p + wnp->noff + numsize, p + wnp_ext_off,
wnp->isoent->ext_len + nullsize);
wnp->isoent->ext_off = wnp_ext_off = wnp->noff + numsize;
wnp->isoent->id_len = wnp_ext_off + wnp->isoent->ext_len;
}
}
static void
idr_resolve(struct idr *idr, void (*fsetnum)(unsigned char *p, int num))
{
struct idrent *n;
unsigned char *p;
for (n = idr->wait_list.first; n != NULL; n = n->wnext) {
idr_extend_identifier(n, idr->num_size, idr->null_size);
p = (unsigned char *)n->isoent->identifier + n->noff;
do {
fsetnum(p, n->avail->rename_num++);
} while (!__archive_rb_tree_insert_node(
&(idr->rbtree), &(n->rbnode)));
}
}
static void
idr_set_num(unsigned char *p, int num)
{
static const char xdig[] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
'U', 'V', 'W', 'X', 'Y', 'Z'
};
num %= sizeof(xdig) * sizeof(xdig) * sizeof(xdig);
p[0] = xdig[(num / (sizeof(xdig) * sizeof(xdig)))];
num %= sizeof(xdig) * sizeof(xdig);
p[1] = xdig[ (num / sizeof(xdig))];
num %= sizeof(xdig);
p[2] = xdig[num];
}
static void
idr_set_num_beutf16(unsigned char *p, int num)
{
static const uint16_t xdig[] = {
0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035,
0x0036, 0x0037, 0x0038, 0x0039,
0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046,
0x0047, 0x0048, 0x0049, 0x004A, 0x004B, 0x004C,
0x004D, 0x004E, 0x004F, 0x0050, 0x0051, 0x0052,
0x0053, 0x0054, 0x0055, 0x0056, 0x0057, 0x0058,
0x0059, 0x005A
};
#define XDIG_CNT (sizeof(xdig)/sizeof(xdig[0]))
num %= XDIG_CNT * XDIG_CNT * XDIG_CNT;
archive_be16enc(p, xdig[(num / (XDIG_CNT * XDIG_CNT))]);
num %= XDIG_CNT * XDIG_CNT;
archive_be16enc(p+2, xdig[ (num / XDIG_CNT)]);
num %= XDIG_CNT;
archive_be16enc(p+4, xdig[num]);
}
/*
* Generate ISO9660 Identifier.
*/
static int
isoent_gen_iso9660_identifier(struct archive_write *a, struct isoent *isoent,
struct idr *idr)
{
struct iso9660 *iso9660;
struct isoent *np;
char *p;
int l, r;
const char *char_map;
char allow_ldots, allow_multidot, allow_period, allow_vernum;
int fnmax, ffmax, dnmax;
static const struct archive_rb_tree_ops rb_ops = {
isoent_cmp_node_iso9660, isoent_cmp_key_iso9660
};
if (isoent->children.cnt == 0)
return (0);
iso9660 = a->format_data;
char_map = idr->char_map;
if (iso9660->opt.iso_level <= 3) {
allow_ldots = 0;
allow_multidot = 0;
allow_period = 1;
allow_vernum = iso9660->opt.allow_vernum;
if (iso9660->opt.iso_level == 1) {
fnmax = 8;
ffmax = 12;/* fnmax + '.' + 3 */
dnmax = 8;
} else {
fnmax = 30;
ffmax = 31;
dnmax = 31;
}
} else {
allow_ldots = allow_multidot = 1;
allow_period = allow_vernum = 0;
if (iso9660->opt.rr)
/*
* MDR : The maximum size of Directory Record(254).
* DRL : A Directory Record Length(33).
* CE : A size of SUSP CE System Use Entry(28).
* MDR - DRL - CE = 254 - 33 - 28 = 193.
*/
fnmax = ffmax = dnmax = 193;
else
/*
* XA : CD-ROM XA System Use Extension
* Information(14).
* MDR - DRL - XA = 254 - 33 -14 = 207.
*/
fnmax = ffmax = dnmax = 207;
}
r = idr_start(a, idr, isoent->children.cnt, ffmax, 3, 1, &rb_ops);
if (r < 0)
return (r);
for (np = isoent->children.first; np != NULL; np = np->chnext) {
char *dot, *xdot;
int ext_off, noff, weight;
l = (int)np->file->basename.length;
p = malloc(l+31+2+1);
if (p == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
memcpy(p, np->file->basename.s, l);
p[l] = '\0';
np->identifier = p;
dot = xdot = NULL;
if (!allow_ldots) {
/*
* If there is a '.' character at the first byte,
* it has to be replaced by '_' character.
*/
if (*p == '.')
*p++ = '_';
}
for (;*p; p++) {
if (*p & 0x80) {
*p = '_';
continue;
}
if (char_map[(unsigned char)*p]) {
/* if iso-level is '4', a character '.' is
* allowed by char_map. */
if (*p == '.') {
xdot = dot;
dot = p;
}
continue;
}
if (*p >= 'a' && *p <= 'z') {
*p -= 'a' - 'A';
continue;
}
if (*p == '.') {
xdot = dot;
dot = p;
if (allow_multidot)
continue;
}
*p = '_';
}
p = np->identifier;
weight = -1;
if (dot == NULL) {
int nammax;
if (np->dir)
nammax = dnmax;
else
nammax = fnmax;
if (l > nammax) {
p[nammax] = '\0';
weight = nammax;
ext_off = nammax;
} else
ext_off = l;
} else {
*dot = '.';
ext_off = (int)(dot - p);
if (iso9660->opt.iso_level == 1) {
if (dot - p <= 8) {
if (strlen(dot) > 4) {
/* A length of a file extension
* must be less than 4 */
dot[4] = '\0';
weight = 0;
}
} else {
p[8] = dot[0];
p[9] = dot[1];
p[10] = dot[2];
p[11] = dot[3];
p[12] = '\0';
weight = 8;
ext_off = 8;
}
} else if (np->dir) {
if (l > dnmax) {
p[dnmax] = '\0';
weight = dnmax;
if (ext_off > dnmax)
ext_off = dnmax;
}
} else if (l > ffmax) {
int extlen = (int)strlen(dot);
int xdoff;
if (xdot != NULL)
xdoff = (int)(xdot - p);
else
xdoff = 0;
if (extlen > 1 && xdoff < fnmax-1) {
int off;
if (extlen > ffmax)
extlen = ffmax;
off = ffmax - extlen;
if (off == 0) {
/* A dot('.') character
* doesn't place to the first
* byte of identifier. */
off ++;
extlen --;
}
memmove(p+off, dot, extlen);
p[ffmax] = '\0';
ext_off = off;
weight = off;
#ifdef COMPAT_MKISOFS
} else if (xdoff >= fnmax-1) {
/* Simulate a bug(?) of mkisofs. */
p[fnmax-1] = '\0';
ext_off = fnmax-1;
weight = fnmax-1;
#endif
} else {
p[fnmax] = '\0';
ext_off = fnmax;
weight = fnmax;
}
}
}
/* Save an offset of a file name extension to sort files. */
np->ext_off = ext_off;
np->ext_len = (int)strlen(&p[ext_off]);
np->id_len = l = ext_off + np->ext_len;
/* Make an offset of the number which is used to be set
* hexadecimal number to avoid duplicate identifier. */
if (iso9660->opt.iso_level == 1) {
if (ext_off >= 5)
noff = 5;
else
noff = ext_off;
} else {
if (l == ffmax)
noff = ext_off - 3;
else if (l == ffmax-1)
noff = ext_off - 2;
else if (l == ffmax-2)
noff = ext_off - 1;
else
noff = ext_off;
}
/* Register entry to the identifier resolver. */
idr_register(idr, np, weight, noff);
}
/* Resolve duplicate identifier. */
idr_resolve(idr, idr_set_num);
/* Add a period and a version number to identifiers. */
for (np = isoent->children.first; np != NULL; np = np->chnext) {
if (!np->dir && np->rr_child == NULL) {
p = np->identifier + np->ext_off + np->ext_len;
if (np->ext_len == 0 && allow_period) {
*p++ = '.';
np->ext_len = 1;
}
if (np->ext_len == 1 && !allow_period) {
*--p = '\0';
np->ext_len = 0;
}
np->id_len = np->ext_off + np->ext_len;
if (allow_vernum) {
*p++ = ';';
*p++ = '1';
np->id_len += 2;
}
*p = '\0';
} else
np->id_len = np->ext_off + np->ext_len;
np->mb_len = np->id_len;
}
return (ARCHIVE_OK);
}
/*
* Generate Joliet Identifier.
*/
static int
isoent_gen_joliet_identifier(struct archive_write *a, struct isoent *isoent,
struct idr *idr)
{
struct iso9660 *iso9660;
struct isoent *np;
unsigned char *p;
size_t l;
int r;
size_t ffmax, parent_len;
static const struct archive_rb_tree_ops rb_ops = {
isoent_cmp_node_joliet, isoent_cmp_key_joliet
};
if (isoent->children.cnt == 0)
return (0);
iso9660 = a->format_data;
if (iso9660->opt.joliet == OPT_JOLIET_LONGNAME)
ffmax = 206;
else
ffmax = 128;
r = idr_start(a, idr, isoent->children.cnt, (int)ffmax, 6, 2, &rb_ops);
if (r < 0)
return (r);
parent_len = 1;
for (np = isoent; np->parent != np; np = np->parent)
parent_len += np->mb_len + 1;
for (np = isoent->children.first; np != NULL; np = np->chnext) {
unsigned char *dot;
int ext_off, noff, weight;
size_t lt;
if ((l = np->file->basename_utf16.length) > ffmax)
l = ffmax;
p = malloc((l+1)*2);
if (p == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
memcpy(p, np->file->basename_utf16.s, l);
p[l] = 0;
p[l+1] = 0;
np->identifier = (char *)p;
lt = l;
dot = p + l;
weight = 0;
while (lt > 0) {
if (!joliet_allowed_char(p[0], p[1]))
archive_be16enc(p, 0x005F); /* '_' */
else if (p[0] == 0 && p[1] == 0x2E) /* '.' */
dot = p;
p += 2;
lt -= 2;
}
ext_off = (int)(dot - (unsigned char *)np->identifier);
np->ext_off = ext_off;
np->ext_len = (int)l - ext_off;
np->id_len = (int)l;
/*
* Get a length of MBS of a full-pathname.
*/
if (np->file->basename_utf16.length > ffmax) {
if (archive_strncpy_l(&iso9660->mbs,
(const char *)np->identifier, l,
iso9660->sconv_from_utf16be) != 0 &&
errno == ENOMEM) {
archive_set_error(&a->archive, errno,
"No memory");
return (ARCHIVE_FATAL);
}
np->mb_len = (int)iso9660->mbs.length;
if (np->mb_len != (int)np->file->basename.length)
weight = np->mb_len;
} else
np->mb_len = (int)np->file->basename.length;
/* If a length of full-pathname is longer than 240 bytes,
* it violates Joliet extensions regulation. */
if (parent_len > 240
|| np->mb_len > 240
|| parent_len + np->mb_len > 240) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"The regulation of Joliet extensions;"
" A length of a full-pathname of `%s' is "
"longer than 240 bytes, (p=%d, b=%d)",
archive_entry_pathname(np->file->entry),
(int)parent_len, (int)np->mb_len);
return (ARCHIVE_FATAL);
}
/* Make an offset of the number which is used to be set
* hexadecimal number to avoid duplicate identifier. */
if (l == ffmax)
noff = ext_off - 6;
else if (l == ffmax-2)
noff = ext_off - 4;
else if (l == ffmax-4)
noff = ext_off - 2;
else
noff = ext_off;
/* Register entry to the identifier resolver. */
idr_register(idr, np, weight, noff);
}
/* Resolve duplicate identifier with Joliet Volume. */
idr_resolve(idr, idr_set_num_beutf16);
return (ARCHIVE_OK);
}
/*
* This comparing rule is according to ISO9660 Standard 9.3
*/
static int
isoent_cmp_iso9660_identifier(const struct isoent *p1, const struct isoent *p2)
{
const char *s1, *s2;
int cmp;
int l;
s1 = p1->identifier;
s2 = p2->identifier;
/* Compare File Name */
l = p1->ext_off;
if (l > p2->ext_off)
l = p2->ext_off;
cmp = memcmp(s1, s2, l);
if (cmp != 0)
return (cmp);
if (p1->ext_off < p2->ext_off) {
s2 += l;
l = p2->ext_off - p1->ext_off;
while (l--)
if (0x20 != *s2++)
return (0x20
- *(const unsigned char *)(s2 - 1));
} else if (p1->ext_off > p2->ext_off) {
s1 += l;
l = p1->ext_off - p2->ext_off;
while (l--)
if (0x20 != *s1++)
return (*(const unsigned char *)(s1 - 1)
- 0x20);
}
/* Compare File Name Extension */
if (p1->ext_len == 0 && p2->ext_len == 0)
return (0);
if (p1->ext_len == 1 && p2->ext_len == 1)
return (0);
if (p1->ext_len <= 1)
return (-1);
if (p2->ext_len <= 1)
return (1);
l = p1->ext_len;
if (l > p2->ext_len)
l = p2->ext_len;
s1 = p1->identifier + p1->ext_off;
s2 = p2->identifier + p2->ext_off;
if (l > 1) {
cmp = memcmp(s1, s2, l);
if (cmp != 0)
return (cmp);
}
if (p1->ext_len < p2->ext_len) {
s2 += l;
l = p2->ext_len - p1->ext_len;
while (l--)
if (0x20 != *s2++)
return (0x20
- *(const unsigned char *)(s2 - 1));
} else if (p1->ext_len > p2->ext_len) {
s1 += l;
l = p1->ext_len - p2->ext_len;
while (l--)
if (0x20 != *s1++)
return (*(const unsigned char *)(s1 - 1)
- 0x20);
}
/* Compare File Version Number */
/* No operation. The File Version Number is always one. */
return (cmp);
}
static int
isoent_cmp_node_iso9660(const struct archive_rb_node *n1,
const struct archive_rb_node *n2)
{
const struct idrent *e1 = (const struct idrent *)n1;
const struct idrent *e2 = (const struct idrent *)n2;
return (isoent_cmp_iso9660_identifier(e2->isoent, e1->isoent));
}
static int
isoent_cmp_key_iso9660(const struct archive_rb_node *node, const void *key)
{
const struct isoent *isoent = (const struct isoent *)key;
const struct idrent *idrent = (const struct idrent *)node;
return (isoent_cmp_iso9660_identifier(isoent, idrent->isoent));
}
static int
isoent_cmp_joliet_identifier(const struct isoent *p1, const struct isoent *p2)
{
const unsigned char *s1, *s2;
int cmp;
int l;
s1 = (const unsigned char *)p1->identifier;
s2 = (const unsigned char *)p2->identifier;
/* Compare File Name */
l = p1->ext_off;
if (l > p2->ext_off)
l = p2->ext_off;
cmp = memcmp(s1, s2, l);
if (cmp != 0)
return (cmp);
if (p1->ext_off < p2->ext_off) {
s2 += l;
l = p2->ext_off - p1->ext_off;
while (l--)
if (0 != *s2++)
return (- *(const unsigned char *)(s2 - 1));
} else if (p1->ext_off > p2->ext_off) {
s1 += l;
l = p1->ext_off - p2->ext_off;
while (l--)
if (0 != *s1++)
return (*(const unsigned char *)(s1 - 1));
}
/* Compare File Name Extension */
if (p1->ext_len == 0 && p2->ext_len == 0)
return (0);
if (p1->ext_len == 2 && p2->ext_len == 2)
return (0);
if (p1->ext_len <= 2)
return (-1);
if (p2->ext_len <= 2)
return (1);
l = p1->ext_len;
if (l > p2->ext_len)
l = p2->ext_len;
s1 = (unsigned char *)(p1->identifier + p1->ext_off);
s2 = (unsigned char *)(p2->identifier + p2->ext_off);
if (l > 1) {
cmp = memcmp(s1, s2, l);
if (cmp != 0)
return (cmp);
}
if (p1->ext_len < p2->ext_len) {
s2 += l;
l = p2->ext_len - p1->ext_len;
while (l--)
if (0 != *s2++)
return (- *(const unsigned char *)(s2 - 1));
} else if (p1->ext_len > p2->ext_len) {
s1 += l;
l = p1->ext_len - p2->ext_len;
while (l--)
if (0 != *s1++)
return (*(const unsigned char *)(s1 - 1));
}
/* Compare File Version Number */
/* No operation. The File Version Number is always one. */
return (cmp);
}
static int
isoent_cmp_node_joliet(const struct archive_rb_node *n1,
const struct archive_rb_node *n2)
{
const struct idrent *e1 = (const struct idrent *)n1;
const struct idrent *e2 = (const struct idrent *)n2;
return (isoent_cmp_joliet_identifier(e2->isoent, e1->isoent));
}
static int
isoent_cmp_key_joliet(const struct archive_rb_node *node, const void *key)
{
const struct isoent *isoent = (const struct isoent *)key;
const struct idrent *idrent = (const struct idrent *)node;
return (isoent_cmp_joliet_identifier(isoent, idrent->isoent));
}
static int
isoent_make_sorted_files(struct archive_write *a, struct isoent *isoent,
struct idr *idr)
{
struct archive_rb_node *rn;
struct isoent **children;
children = malloc(isoent->children.cnt * sizeof(struct isoent *));
if (children == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
isoent->children_sorted = children;
ARCHIVE_RB_TREE_FOREACH(rn, &(idr->rbtree)) {
struct idrent *idrent = (struct idrent *)rn;
*children ++ = idrent->isoent;
}
return (ARCHIVE_OK);
}
/*
* - Generate ISO9660 and Joliet identifiers from basenames.
* - Sort files by each directory.
*/
static int
isoent_traverse_tree(struct archive_write *a, struct vdd* vdd)
{
struct iso9660 *iso9660 = a->format_data;
struct isoent *np;
struct idr idr;
int depth;
int r;
int (*genid)(struct archive_write *, struct isoent *, struct idr *);
idr_init(iso9660, vdd, &idr);
np = vdd->rootent;
depth = 0;
if (vdd->vdd_type == VDD_JOLIET)
genid = isoent_gen_joliet_identifier;
else
genid = isoent_gen_iso9660_identifier;
do {
if (np->virtual &&
!archive_entry_mtime_is_set(np->file->entry)) {
/* Set properly times to virtual directory */
archive_entry_set_mtime(np->file->entry,
iso9660->birth_time, 0);
archive_entry_set_atime(np->file->entry,
iso9660->birth_time, 0);
archive_entry_set_ctime(np->file->entry,
iso9660->birth_time, 0);
}
if (np->children.first != NULL) {
if (vdd->vdd_type != VDD_JOLIET &&
!iso9660->opt.rr && depth + 1 >= vdd->max_depth) {
if (np->children.cnt > 0)
iso9660->directories_too_deep = np;
} else {
/* Generate Identifier */
r = genid(a, np, &idr);
if (r < 0)
goto exit_traverse_tree;
r = isoent_make_sorted_files(a, np, &idr);
if (r < 0)
goto exit_traverse_tree;
if (np->subdirs.first != NULL &&
depth + 1 < vdd->max_depth) {
/* Enter to sub directories. */
np = np->subdirs.first;
depth++;
continue;
}
}
}
while (np != np->parent) {
if (np->drnext == NULL) {
/* Return to the parent directory. */
np = np->parent;
depth--;
} else {
np = np->drnext;
break;
}
}
} while (np != np->parent);
r = ARCHIVE_OK;
exit_traverse_tree:
idr_cleanup(&idr);
return (r);
}
/*
* Collect directory entries into path_table by a directory depth.
*/
static int
isoent_collect_dirs(struct vdd *vdd, struct isoent *rootent, int depth)
{
struct isoent *np;
if (rootent == NULL)
rootent = vdd->rootent;
np = rootent;
do {
/* Register current directory to pathtable. */
path_table_add_entry(&(vdd->pathtbl[depth]), np);
if (np->subdirs.first != NULL && depth + 1 < vdd->max_depth) {
/* Enter to sub directories. */
np = np->subdirs.first;
depth++;
continue;
}
while (np != rootent) {
if (np->drnext == NULL) {
/* Return to the parent directory. */
np = np->parent;
depth--;
} else {
np = np->drnext;
break;
}
}
} while (np != rootent);
return (ARCHIVE_OK);
}
/*
* The entry whose number of levels in a directory hierarchy is
* large than eight relocate to rr_move directory.
*/
static int
isoent_rr_move_dir(struct archive_write *a, struct isoent **rr_moved,
struct isoent *curent, struct isoent **newent)
{
struct iso9660 *iso9660 = a->format_data;
struct isoent *rrmoved, *mvent, *np;
if ((rrmoved = *rr_moved) == NULL) {
struct isoent *rootent = iso9660->primary.rootent;
/* There isn't rr_move entry.
* Create rr_move entry and insert it into the root entry.
*/
rrmoved = isoent_create_virtual_dir(a, iso9660, "rr_moved");
if (rrmoved == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
/* Add "rr_moved" entry to the root entry. */
isoent_add_child_head(rootent, rrmoved);
archive_entry_set_nlink(rootent->file->entry,
archive_entry_nlink(rootent->file->entry) + 1);
/* Register "rr_moved" entry to second level pathtable. */
path_table_add_entry(&(iso9660->primary.pathtbl[1]), rrmoved);
/* Save rr_moved. */
*rr_moved = rrmoved;
}
/*
* Make a clone of curent which is going to be relocated
* to rr_moved.
*/
mvent = isoent_clone(curent);
if (mvent == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
/* linking.. and use for creating "CL", "PL" and "RE" */
mvent->rr_parent = curent->parent;
curent->rr_child = mvent;
/*
* Move subdirectories from the curent to mvent
*/
if (curent->children.first != NULL) {
*mvent->children.last = curent->children.first;
mvent->children.last = curent->children.last;
}
for (np = mvent->children.first; np != NULL; np = np->chnext)
np->parent = mvent;
mvent->children.cnt = curent->children.cnt;
curent->children.cnt = 0;
curent->children.first = NULL;
curent->children.last = &curent->children.first;
if (curent->subdirs.first != NULL) {
*mvent->subdirs.last = curent->subdirs.first;
mvent->subdirs.last = curent->subdirs.last;
}
mvent->subdirs.cnt = curent->subdirs.cnt;
curent->subdirs.cnt = 0;
curent->subdirs.first = NULL;
curent->subdirs.last = &curent->subdirs.first;
/*
* The mvent becomes a child of the rr_moved entry.
*/
isoent_add_child_tail(rrmoved, mvent);
archive_entry_set_nlink(rrmoved->file->entry,
archive_entry_nlink(rrmoved->file->entry) + 1);
/*
* This entry which relocated to the rr_moved directory
* has to set the flag as a file.
* See also RRIP 4.1.5.1 Description of the "CL" System Use Entry.
*/
curent->dir = 0;
*newent = mvent;
return (ARCHIVE_OK);
}
static int
isoent_rr_move(struct archive_write *a)
{
struct iso9660 *iso9660 = a->format_data;
struct path_table *pt;
struct isoent *rootent, *rr_moved;
struct isoent *np, *last;
int r;
pt = &(iso9660->primary.pathtbl[MAX_DEPTH-1]);
/* There aren't level 8 directories reaching a deeper level. */
if (pt->cnt == 0)
return (ARCHIVE_OK);
rootent = iso9660->primary.rootent;
/* If "rr_moved" directory is already existing,
* we have to use it. */
rr_moved = isoent_find_child(rootent, "rr_moved");
if (rr_moved != NULL &&
rr_moved != rootent->children.first) {
/*
* It's necessary that rr_move is the first entry
* of the root.
*/
/* Remove "rr_moved" entry from children chain. */
isoent_remove_child(rootent, rr_moved);
/* Add "rr_moved" entry into the head of children chain. */
isoent_add_child_head(rootent, rr_moved);
}
/*
* Check level 8 path_table.
* If find out sub directory entries, that entries move to rr_move.
*/
np = pt->first;
while (np != NULL) {
last = path_table_last_entry(pt);
for (; np != NULL; np = np->ptnext) {
struct isoent *mvent;
struct isoent *newent;
if (!np->dir)
continue;
for (mvent = np->subdirs.first;
mvent != NULL; mvent = mvent->drnext) {
r = isoent_rr_move_dir(a, &rr_moved,
mvent, &newent);
if (r < 0)
return (r);
isoent_collect_dirs(&(iso9660->primary),
newent, 2);
}
}
/* If new entries are added to level 8 path_talbe,
* its sub directory entries move to rr_move too.
*/
np = last->ptnext;
}
return (ARCHIVE_OK);
}
/*
* This comparing rule is according to ISO9660 Standard 6.9.1
*/
static int
_compare_path_table(const void *v1, const void *v2)
{
const struct isoent *p1, *p2;
const char *s1, *s2;
int cmp, l;
p1 = *((const struct isoent **)(uintptr_t)v1);
p2 = *((const struct isoent **)(uintptr_t)v2);
/* Compare parent directory number */
cmp = p1->parent->dir_number - p2->parent->dir_number;
if (cmp != 0)
return (cmp);
/* Compare identifier */
s1 = p1->identifier;
s2 = p2->identifier;
l = p1->ext_off;
if (l > p2->ext_off)
l = p2->ext_off;
cmp = strncmp(s1, s2, l);
if (cmp != 0)
return (cmp);
if (p1->ext_off < p2->ext_off) {
s2 += l;
l = p2->ext_off - p1->ext_off;
while (l--)
if (0x20 != *s2++)
return (0x20
- *(const unsigned char *)(s2 - 1));
} else if (p1->ext_off > p2->ext_off) {
s1 += l;
l = p1->ext_off - p2->ext_off;
while (l--)
if (0x20 != *s1++)
return (*(const unsigned char *)(s1 - 1)
- 0x20);
}
return (0);
}
static int
_compare_path_table_joliet(const void *v1, const void *v2)
{
const struct isoent *p1, *p2;
const unsigned char *s1, *s2;
int cmp, l;
p1 = *((const struct isoent **)(uintptr_t)v1);
p2 = *((const struct isoent **)(uintptr_t)v2);
/* Compare parent directory number */
cmp = p1->parent->dir_number - p2->parent->dir_number;
if (cmp != 0)
return (cmp);
/* Compare identifier */
s1 = (const unsigned char *)p1->identifier;
s2 = (const unsigned char *)p2->identifier;
l = p1->ext_off;
if (l > p2->ext_off)
l = p2->ext_off;
cmp = memcmp(s1, s2, l);
if (cmp != 0)
return (cmp);
if (p1->ext_off < p2->ext_off) {
s2 += l;
l = p2->ext_off - p1->ext_off;
while (l--)
if (0 != *s2++)
return (- *(const unsigned char *)(s2 - 1));
} else if (p1->ext_off > p2->ext_off) {
s1 += l;
l = p1->ext_off - p2->ext_off;
while (l--)
if (0 != *s1++)
return (*(const unsigned char *)(s1 - 1));
}
return (0);
}
static inline void
path_table_add_entry(struct path_table *pathtbl, struct isoent *ent)
{
ent->ptnext = NULL;
*pathtbl->last = ent;
pathtbl->last = &(ent->ptnext);
pathtbl->cnt ++;
}
static inline struct isoent *
path_table_last_entry(struct path_table *pathtbl)
{
if (pathtbl->first == NULL)
return (NULL);
return (((struct isoent *)(void *)
((char *)(pathtbl->last) - offsetof(struct isoent, ptnext))));
}
/*
* Sort directory entries in path_table
* and assign directory number to each entries.
*/
static int
isoent_make_path_table_2(struct archive_write *a, struct vdd *vdd,
int depth, int *dir_number)
{
struct isoent *np;
struct isoent **enttbl;
struct path_table *pt;
int i;
pt = &vdd->pathtbl[depth];
if (pt->cnt == 0) {
pt->sorted = NULL;
return (ARCHIVE_OK);
}
enttbl = malloc(pt->cnt * sizeof(struct isoent *));
if (enttbl == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
pt->sorted = enttbl;
for (np = pt->first; np != NULL; np = np->ptnext)
*enttbl ++ = np;
enttbl = pt->sorted;
switch (vdd->vdd_type) {
case VDD_PRIMARY:
case VDD_ENHANCED:
#ifdef __COMPAR_FN_T
qsort(enttbl, pt->cnt, sizeof(struct isoent *),
(__compar_fn_t)_compare_path_table);
#else
qsort(enttbl, pt->cnt, sizeof(struct isoent *),
_compare_path_table);
#endif
break;
case VDD_JOLIET:
#ifdef __COMPAR_FN_T
qsort(enttbl, pt->cnt, sizeof(struct isoent *),
(__compar_fn_t)_compare_path_table_joliet);
#else
qsort(enttbl, pt->cnt, sizeof(struct isoent *),
_compare_path_table_joliet);
#endif
break;
}
for (i = 0; i < pt->cnt; i++)
enttbl[i]->dir_number = (*dir_number)++;
return (ARCHIVE_OK);
}
static int
isoent_alloc_path_table(struct archive_write *a, struct vdd *vdd,
int max_depth)
{
int i;
vdd->max_depth = max_depth;
vdd->pathtbl = malloc(sizeof(*vdd->pathtbl) * vdd->max_depth);
if (vdd->pathtbl == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
for (i = 0; i < vdd->max_depth; i++) {
vdd->pathtbl[i].first = NULL;
vdd->pathtbl[i].last = &(vdd->pathtbl[i].first);
vdd->pathtbl[i].sorted = NULL;
vdd->pathtbl[i].cnt = 0;
}
return (ARCHIVE_OK);
}
/*
* Make Path Tables
*/
static int
isoent_make_path_table(struct archive_write *a)
{
struct iso9660 *iso9660 = a->format_data;
int depth, r;
int dir_number;
/*
* Init Path Table.
*/
if (iso9660->dircnt_max >= MAX_DEPTH &&
(!iso9660->opt.limit_depth || iso9660->opt.iso_level == 4))
r = isoent_alloc_path_table(a, &(iso9660->primary),
iso9660->dircnt_max + 1);
else
/* The number of levels in the hierarchy cannot exceed
* eight. */
r = isoent_alloc_path_table(a, &(iso9660->primary),
MAX_DEPTH);
if (r < 0)
return (r);
if (iso9660->opt.joliet) {
r = isoent_alloc_path_table(a, &(iso9660->joliet),
iso9660->dircnt_max + 1);
if (r < 0)
return (r);
}
/* Step 0.
* - Collect directories for primary and joliet.
*/
isoent_collect_dirs(&(iso9660->primary), NULL, 0);
if (iso9660->opt.joliet)
isoent_collect_dirs(&(iso9660->joliet), NULL, 0);
/*
* Rockridge; move deeper depth directories to rr_moved.
*/
if (iso9660->opt.rr) {
r = isoent_rr_move(a);
if (r < 0)
return (r);
}
/* Update nlink. */
isofile_connect_hardlink_files(iso9660);
/* Step 1.
* - Renew a value of the depth of that directories.
* - Resolve hardlinks.
* - Convert pathnames to ISO9660 name or UCS2(joliet).
* - Sort files by each directory.
*/
r = isoent_traverse_tree(a, &(iso9660->primary));
if (r < 0)
return (r);
if (iso9660->opt.joliet) {
r = isoent_traverse_tree(a, &(iso9660->joliet));
if (r < 0)
return (r);
}
/* Step 2.
* - Sort directories.
* - Assign all directory number.
*/
dir_number = 1;
for (depth = 0; depth < iso9660->primary.max_depth; depth++) {
r = isoent_make_path_table_2(a, &(iso9660->primary),
depth, &dir_number);
if (r < 0)
return (r);
}
if (iso9660->opt.joliet) {
dir_number = 1;
for (depth = 0; depth < iso9660->joliet.max_depth; depth++) {
r = isoent_make_path_table_2(a, &(iso9660->joliet),
depth, &dir_number);
if (r < 0)
return (r);
}
}
if (iso9660->opt.limit_dirs && dir_number > 0xffff) {
/*
* Maximum number of directories is 65535(0xffff)
* doe to size(16bit) of Parent Directory Number of
* the Path Table.
* See also ISO9660 Standard 9.4.
*/
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Too many directories(%d) over 65535.", dir_number);
return (ARCHIVE_FATAL);
}
/* Get the size of the Path Table. */
calculate_path_table_size(&(iso9660->primary));
if (iso9660->opt.joliet)
calculate_path_table_size(&(iso9660->joliet));
return (ARCHIVE_OK);
}
static int
isoent_find_out_boot_file(struct archive_write *a, struct isoent *rootent)
{
struct iso9660 *iso9660 = a->format_data;
/* Find a isoent of the boot file. */
iso9660->el_torito.boot = isoent_find_entry(rootent,
iso9660->el_torito.boot_filename.s);
if (iso9660->el_torito.boot == NULL) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Can't find the boot image file ``%s''",
iso9660->el_torito.boot_filename.s);
return (ARCHIVE_FATAL);
}
iso9660->el_torito.boot->file->boot = BOOT_IMAGE;
return (ARCHIVE_OK);
}
static int
isoent_create_boot_catalog(struct archive_write *a, struct isoent *rootent)
{
struct iso9660 *iso9660 = a->format_data;
struct isofile *file;
struct isoent *isoent;
struct archive_entry *entry;
(void)rootent; /* UNUSED */
/*
* Create the entry which is the "boot.catalog" file.
*/
file = isofile_new(a, NULL);
if (file == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
archive_entry_set_pathname(file->entry,
iso9660->el_torito.catalog_filename.s);
archive_entry_set_size(file->entry, LOGICAL_BLOCK_SIZE);
archive_entry_set_mtime(file->entry, iso9660->birth_time, 0);
archive_entry_set_atime(file->entry, iso9660->birth_time, 0);
archive_entry_set_ctime(file->entry, iso9660->birth_time, 0);
archive_entry_set_uid(file->entry, getuid());
archive_entry_set_gid(file->entry, getgid());
archive_entry_set_mode(file->entry, AE_IFREG | 0444);
archive_entry_set_nlink(file->entry, 1);
if (isofile_gen_utility_names(a, file) < ARCHIVE_WARN) {
isofile_free(file);
return (ARCHIVE_FATAL);
}
file->boot = BOOT_CATALOG;
file->content.size = LOGICAL_BLOCK_SIZE;
isofile_add_entry(iso9660, file);
isoent = isoent_new(file);
if (isoent == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate memory");
return (ARCHIVE_FATAL);
}
isoent->virtual = 1;
/* Add the "boot.catalog" entry into tree */
if (isoent_tree(a, &isoent) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
iso9660->el_torito.catalog = isoent;
/*
* Get a boot media type.
*/
switch (iso9660->opt.boot_type) {
default:
case OPT_BOOT_TYPE_AUTO:
/* Try detecting a media type of the boot image. */
entry = iso9660->el_torito.boot->file->entry;
if (archive_entry_size(entry) == FD_1_2M_SIZE)
iso9660->el_torito.media_type =
BOOT_MEDIA_1_2M_DISKETTE;
else if (archive_entry_size(entry) == FD_1_44M_SIZE)
iso9660->el_torito.media_type =
BOOT_MEDIA_1_44M_DISKETTE;
else if (archive_entry_size(entry) == FD_2_88M_SIZE)
iso9660->el_torito.media_type =
BOOT_MEDIA_2_88M_DISKETTE;
else
/* We cannot decide whether the boot image is
* hard-disk. */
iso9660->el_torito.media_type =
BOOT_MEDIA_NO_EMULATION;
break;
case OPT_BOOT_TYPE_NO_EMU:
iso9660->el_torito.media_type = BOOT_MEDIA_NO_EMULATION;
break;
case OPT_BOOT_TYPE_HARD_DISK:
iso9660->el_torito.media_type = BOOT_MEDIA_HARD_DISK;
break;
case OPT_BOOT_TYPE_FD:
entry = iso9660->el_torito.boot->file->entry;
if (archive_entry_size(entry) <= FD_1_2M_SIZE)
iso9660->el_torito.media_type =
BOOT_MEDIA_1_2M_DISKETTE;
else if (archive_entry_size(entry) <= FD_1_44M_SIZE)
iso9660->el_torito.media_type =
BOOT_MEDIA_1_44M_DISKETTE;
else if (archive_entry_size(entry) <= FD_2_88M_SIZE)
iso9660->el_torito.media_type =
BOOT_MEDIA_2_88M_DISKETTE;
else {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Boot image file(``%s'') size is too big "
"for fd type.",
iso9660->el_torito.boot_filename.s);
return (ARCHIVE_FATAL);
}
break;
}
/*
* Get a system type.
* TODO: `El Torito' specification says "A copy of byte 5 from the
* Partition Table found in the boot image".
*/
iso9660->el_torito.system_type = 0;
/*
* Get an ID.
*/
if (iso9660->opt.publisher)
archive_string_copy(&(iso9660->el_torito.id),
&(iso9660->publisher_identifier));
return (ARCHIVE_OK);
}
/*
* If a media type is floppy, return its image size.
* otherwise return 0.
*/
static size_t
fd_boot_image_size(int media_type)
{
switch (media_type) {
case BOOT_MEDIA_1_2M_DISKETTE:
return (FD_1_2M_SIZE);
case BOOT_MEDIA_1_44M_DISKETTE:
return (FD_1_44M_SIZE);
case BOOT_MEDIA_2_88M_DISKETTE:
return (FD_2_88M_SIZE);
default:
return (0);
}
}
/*
* Make a boot catalog image data.
*/
static int
make_boot_catalog(struct archive_write *a)
{
struct iso9660 *iso9660 = a->format_data;
unsigned char *block;
unsigned char *p;
uint16_t sum, *wp;
block = wb_buffptr(a);
memset(block, 0, LOGICAL_BLOCK_SIZE);
p = block;
/*
* Validation Entry
*/
/* Header ID */
p[0] = 1;
/* Platform ID */
p[1] = iso9660->el_torito.platform_id;
/* Reserved */
p[2] = p[3] = 0;
/* ID */
if (archive_strlen(&(iso9660->el_torito.id)) > 0)
strncpy((char *)p+4, iso9660->el_torito.id.s, 23);
p[27] = 0;
/* Checksum */
p[28] = p[29] = 0;
/* Key */
p[30] = 0x55;
p[31] = 0xAA;
sum = 0;
wp = (uint16_t *)block;
while (wp < (uint16_t *)&block[32])
sum += archive_le16dec(wp++);
set_num_721(&block[28], (~sum) + 1);
/*
* Initial/Default Entry
*/
p = &block[32];
/* Boot Indicator */
p[0] = 0x88;
/* Boot media type */
p[1] = iso9660->el_torito.media_type;
/* Load Segment */
if (iso9660->el_torito.media_type == BOOT_MEDIA_NO_EMULATION)
set_num_721(&p[2], iso9660->el_torito.boot_load_seg);
else
set_num_721(&p[2], 0);
/* System Type */
p[4] = iso9660->el_torito.system_type;
/* Unused */
p[5] = 0;
/* Sector Count */
if (iso9660->el_torito.media_type == BOOT_MEDIA_NO_EMULATION)
set_num_721(&p[6], iso9660->el_torito.boot_load_size);
else
set_num_721(&p[6], 1);
/* Load RBA */
set_num_731(&p[8],
iso9660->el_torito.boot->file->content.location);
/* Unused */
memset(&p[12], 0, 20);
return (wb_consume(a, LOGICAL_BLOCK_SIZE));
}
static int
setup_boot_information(struct archive_write *a)
{
struct iso9660 *iso9660 = a->format_data;
struct isoent *np;
int64_t size;
uint32_t sum;
unsigned char buff[4096];
np = iso9660->el_torito.boot;
lseek(iso9660->temp_fd,
np->file->content.offset_of_temp + 64, SEEK_SET);
size = archive_entry_size(np->file->entry) - 64;
if (size <= 0) {
archive_set_error(&a->archive, errno,
"Boot file(%jd) is too small", (intmax_t)size + 64);
return (ARCHIVE_FATAL);
}
sum = 0;
while (size > 0) {
size_t rsize;
ssize_t i, rs;
if (size > (int64_t)sizeof(buff))
rsize = sizeof(buff);
else
rsize = (size_t)size;
rs = read(iso9660->temp_fd, buff, rsize);
if (rs <= 0) {
archive_set_error(&a->archive, errno,
"Can't read temporary file(%jd)",
(intmax_t)rs);
return (ARCHIVE_FATAL);
}
for (i = 0; i < rs; i += 4)
sum += archive_le32dec(buff + i);
size -= rs;
}
/* Set the location of Primary Volume Descriptor. */
set_num_731(buff, SYSTEM_AREA_BLOCK);
/* Set the location of the boot file. */
set_num_731(buff+4, np->file->content.location);
/* Set the size of the boot file. */
size = fd_boot_image_size(iso9660->el_torito.media_type);
if (size == 0)
size = archive_entry_size(np->file->entry);
set_num_731(buff+8, (uint32_t)size);
/* Set the sum of the boot file. */
set_num_731(buff+12, sum);
/* Clear reserved bytes. */
memset(buff+16, 0, 40);
/* Overwrite the boot file. */
lseek(iso9660->temp_fd,
np->file->content.offset_of_temp + 8, SEEK_SET);
return (write_to_temp(a, buff, 56));
}
#ifdef HAVE_ZLIB_H
static int
zisofs_init_zstream(struct archive_write *a)
{
struct iso9660 *iso9660 = a->format_data;
int r;
iso9660->zisofs.stream.next_in = NULL;
iso9660->zisofs.stream.avail_in = 0;
iso9660->zisofs.stream.total_in = 0;
iso9660->zisofs.stream.total_out = 0;
if (iso9660->zisofs.stream_valid)
r = deflateReset(&(iso9660->zisofs.stream));
else {
r = deflateInit(&(iso9660->zisofs.stream),
iso9660->zisofs.compression_level);
iso9660->zisofs.stream_valid = 1;
}
switch (r) {
case Z_OK:
break;
default:
case Z_STREAM_ERROR:
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Internal error initializing "
"compression library: invalid setup parameter");
return (ARCHIVE_FATAL);
case Z_MEM_ERROR:
archive_set_error(&a->archive, ENOMEM,
"Internal error initializing "
"compression library");
return (ARCHIVE_FATAL);
case Z_VERSION_ERROR:
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Internal error initializing "
"compression library: invalid library version");
return (ARCHIVE_FATAL);
}
return (ARCHIVE_OK);
}
#endif /* HAVE_ZLIB_H */
static int
zisofs_init(struct archive_write *a, struct isofile *file)
{
struct iso9660 *iso9660 = a->format_data;
#ifdef HAVE_ZLIB_H
uint64_t tsize;
size_t _ceil, bpsize;
int r;
#endif
iso9660->zisofs.detect_magic = 0;
iso9660->zisofs.making = 0;
if (!iso9660->opt.rr || !iso9660->opt.zisofs)
return (ARCHIVE_OK);
if (archive_entry_size(file->entry) >= 24 &&
archive_entry_size(file->entry) < MULTI_EXTENT_SIZE) {
/* Acceptable file size for zisofs. */
iso9660->zisofs.detect_magic = 1;
iso9660->zisofs.magic_cnt = 0;
}
if (!iso9660->zisofs.detect_magic)
return (ARCHIVE_OK);
#ifdef HAVE_ZLIB_H
/* The number of Logical Blocks which uncompressed data
* will use in iso-image file is the same as the number of
* Logical Blocks which zisofs(compressed) data will use
* in ISO-image file. It won't reduce iso-image file size. */
if (archive_entry_size(file->entry) <= LOGICAL_BLOCK_SIZE)
return (ARCHIVE_OK);
/* Initialize compression library */
r = zisofs_init_zstream(a);
if (r != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Mark file->zisofs to create RRIP 'ZF' Use Entry. */
file->zisofs.header_size = ZF_HEADER_SIZE >> 2;
file->zisofs.log2_bs = ZF_LOG2_BS;
file->zisofs.uncompressed_size =
(uint32_t)archive_entry_size(file->entry);
/* Calculate a size of Block Pointers of zisofs. */
_ceil = (file->zisofs.uncompressed_size + ZF_BLOCK_SIZE -1)
>> file->zisofs.log2_bs;
iso9660->zisofs.block_pointers_cnt = (int)_ceil + 1;
iso9660->zisofs.block_pointers_idx = 0;
/* Ensure a buffer size used for Block Pointers */
bpsize = iso9660->zisofs.block_pointers_cnt *
sizeof(iso9660->zisofs.block_pointers[0]);
if (iso9660->zisofs.block_pointers_allocated < bpsize) {
free(iso9660->zisofs.block_pointers);
iso9660->zisofs.block_pointers = malloc(bpsize);
if (iso9660->zisofs.block_pointers == NULL) {
archive_set_error(&a->archive, ENOMEM,
"Can't allocate data");
return (ARCHIVE_FATAL);
}
iso9660->zisofs.block_pointers_allocated = bpsize;
}
/*
* Skip zisofs header and Block Pointers, which we will write
* after all compressed data of a file written to the temporary
* file.
*/
tsize = ZF_HEADER_SIZE + bpsize;
if (write_null(a, (size_t)tsize) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/*
* Initialize some variables to make zisofs.
*/
archive_le32enc(&(iso9660->zisofs.block_pointers[0]),
(uint32_t)tsize);
iso9660->zisofs.remaining = file->zisofs.uncompressed_size;
iso9660->zisofs.making = 1;
iso9660->zisofs.allzero = 1;
iso9660->zisofs.block_offset = tsize;
iso9660->zisofs.total_size = tsize;
iso9660->cur_file->cur_content->size = tsize;
#endif
return (ARCHIVE_OK);
}
static void
zisofs_detect_magic(struct archive_write *a, const void *buff, size_t s)
{
struct iso9660 *iso9660 = a->format_data;
struct isofile *file = iso9660->cur_file;
const unsigned char *p, *endp;
const unsigned char *magic_buff;
uint32_t uncompressed_size;
unsigned char header_size;
unsigned char log2_bs;
size_t _ceil, doff;
uint32_t bst, bed;
int magic_max;
int64_t entry_size;
entry_size = archive_entry_size(file->entry);
if ((int64_t)sizeof(iso9660->zisofs.magic_buffer) > entry_size)
magic_max = (int)entry_size;
else
magic_max = sizeof(iso9660->zisofs.magic_buffer);
if (iso9660->zisofs.magic_cnt == 0 && s >= (size_t)magic_max)
/* It's unnecessary we copy buffer. */
magic_buff = buff;
else {
if (iso9660->zisofs.magic_cnt < magic_max) {
size_t l;
l = sizeof(iso9660->zisofs.magic_buffer)
- iso9660->zisofs.magic_cnt;
if (l > s)
l = s;
memcpy(iso9660->zisofs.magic_buffer
+ iso9660->zisofs.magic_cnt, buff, l);
iso9660->zisofs.magic_cnt += (int)l;
if (iso9660->zisofs.magic_cnt < magic_max)
return;
}
magic_buff = iso9660->zisofs.magic_buffer;
}
iso9660->zisofs.detect_magic = 0;
p = magic_buff;
/* Check the magic code of zisofs. */
if (memcmp(p, zisofs_magic, sizeof(zisofs_magic)) != 0)
/* This is not zisofs file which made by mkzftree. */
return;
p += sizeof(zisofs_magic);
/* Read a zisofs header. */
uncompressed_size = archive_le32dec(p);
header_size = p[4];
log2_bs = p[5];
if (uncompressed_size < 24 || header_size != 4 ||
log2_bs > 30 || log2_bs < 7)
return;/* Invalid or not supported header. */
/* Calculate a size of Block Pointers of zisofs. */
_ceil = (uncompressed_size +
(ARCHIVE_LITERAL_LL(1) << log2_bs) -1) >> log2_bs;
doff = (_ceil + 1) * 4 + 16;
if (entry_size < (int64_t)doff)
return;/* Invalid data. */
/* Check every Block Pointer has valid value. */
p = magic_buff + 16;
endp = magic_buff + magic_max;
while (_ceil && p + 8 <= endp) {
bst = archive_le32dec(p);
if (bst != doff)
return;/* Invalid data. */
p += 4;
bed = archive_le32dec(p);
if (bed < bst || bed > entry_size)
return;/* Invalid data. */
doff += bed - bst;
_ceil--;
}
file->zisofs.uncompressed_size = uncompressed_size;
file->zisofs.header_size = header_size;
file->zisofs.log2_bs = log2_bs;
/* Disable making a zisofs image. */
iso9660->zisofs.making = 0;
}
#ifdef HAVE_ZLIB_H
/*
* Compress data and write it to a temporary file.
*/
static int
zisofs_write_to_temp(struct archive_write *a, const void *buff, size_t s)
{
struct iso9660 *iso9660 = a->format_data;
struct isofile *file = iso9660->cur_file;
const unsigned char *b;
z_stream *zstrm;
size_t avail, csize;
int flush, r;
zstrm = &(iso9660->zisofs.stream);
zstrm->next_out = wb_buffptr(a);
zstrm->avail_out = (uInt)wb_remaining(a);
b = (const unsigned char *)buff;
do {
avail = ZF_BLOCK_SIZE - zstrm->total_in;
if (s < avail) {
avail = s;
flush = Z_NO_FLUSH;
} else
flush = Z_FINISH;
iso9660->zisofs.remaining -= avail;
if (iso9660->zisofs.remaining <= 0)
flush = Z_FINISH;
zstrm->next_in = (Bytef *)(uintptr_t)(const void *)b;
zstrm->avail_in = (uInt)avail;
/*
* Check if current data block are all zero.
*/
if (iso9660->zisofs.allzero) {
const unsigned char *nonzero = b;
const unsigned char *nonzeroend = b + avail;
while (nonzero < nonzeroend)
if (*nonzero++) {
iso9660->zisofs.allzero = 0;
break;
}
}
b += avail;
s -= avail;
/*
* If current data block are all zero, we do not use
* compressed data.
*/
if (flush == Z_FINISH && iso9660->zisofs.allzero &&
avail + zstrm->total_in == ZF_BLOCK_SIZE) {
if (iso9660->zisofs.block_offset !=
file->cur_content->size) {
int64_t diff;
r = wb_set_offset(a,
file->cur_content->offset_of_temp +
iso9660->zisofs.block_offset);
if (r != ARCHIVE_OK)
return (r);
diff = file->cur_content->size -
iso9660->zisofs.block_offset;
file->cur_content->size -= diff;
iso9660->zisofs.total_size -= diff;
}
zstrm->avail_in = 0;
}
/*
* Compress file data.
*/
while (zstrm->avail_in > 0) {
csize = zstrm->total_out;
r = deflate(zstrm, flush);
switch (r) {
case Z_OK:
case Z_STREAM_END:
csize = zstrm->total_out - csize;
if (wb_consume(a, csize) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
iso9660->zisofs.total_size += csize;
iso9660->cur_file->cur_content->size += csize;
zstrm->next_out = wb_buffptr(a);
zstrm->avail_out = (uInt)wb_remaining(a);
break;
default:
archive_set_error(&a->archive,
ARCHIVE_ERRNO_MISC,
"Compression failed:"
" deflate() call returned status %d",
r);
return (ARCHIVE_FATAL);
}
}
if (flush == Z_FINISH) {
/*
* Save the information of one zisofs block.
*/
iso9660->zisofs.block_pointers_idx ++;
archive_le32enc(&(iso9660->zisofs.block_pointers[
iso9660->zisofs.block_pointers_idx]),
(uint32_t)iso9660->zisofs.total_size);
r = zisofs_init_zstream(a);
if (r != ARCHIVE_OK)
return (ARCHIVE_FATAL);
iso9660->zisofs.allzero = 1;
iso9660->zisofs.block_offset = file->cur_content->size;
}
} while (s);
return (ARCHIVE_OK);
}
static int
zisofs_finish_entry(struct archive_write *a)
{
struct iso9660 *iso9660 = a->format_data;
struct isofile *file = iso9660->cur_file;
unsigned char buff[16];
size_t s;
int64_t tail;
/* Direct temp file stream to zisofs temp file stream. */
archive_entry_set_size(file->entry, iso9660->zisofs.total_size);
/*
* Save a file pointer which points the end of current zisofs data.
*/
tail = wb_offset(a);
/*
* Make a header.
*
* +-----------------+----------------+-----------------+
* | Header 16 bytes | Block Pointers | Compressed data |
* +-----------------+----------------+-----------------+
* 0 16 +X
* Block Pointers :
* 4 * (((Uncompressed file size + block_size -1) / block_size) + 1)
*
* Write zisofs header.
* Magic number
* +----+----+----+----+----+----+----+----+
* | 37 | E4 | 53 | 96 | C9 | DB | D6 | 07 |
* +----+----+----+----+----+----+----+----+
* 0 1 2 3 4 5 6 7 8
*
* +------------------------+------------------+
* | Uncompressed file size | header_size >> 2 |
* +------------------------+------------------+
* 8 12 13
*
* +-----------------+----------------+
* | log2 block_size | Reserved(0000) |
* +-----------------+----------------+
* 13 14 16
*/
memcpy(buff, zisofs_magic, 8);
set_num_731(buff+8, file->zisofs.uncompressed_size);
buff[12] = file->zisofs.header_size;
buff[13] = file->zisofs.log2_bs;
buff[14] = buff[15] = 0;/* Reserved */
/* Move to the right position to write the header. */
wb_set_offset(a, file->content.offset_of_temp);
/* Write the header. */
if (wb_write_to_temp(a, buff, 16) != ARCHIVE_OK)
return (ARCHIVE_FATAL);
/*
* Write zisofs Block Pointers.
*/
s = iso9660->zisofs.block_pointers_cnt *
sizeof(iso9660->zisofs.block_pointers[0]);
if (wb_write_to_temp(a, iso9660->zisofs.block_pointers, s)
!= ARCHIVE_OK)
return (ARCHIVE_FATAL);
/* Set a file pointer back to the end of the temporary file. */
wb_set_offset(a, tail);
return (ARCHIVE_OK);
}
static int
zisofs_free(struct archive_write *a)
{
struct iso9660 *iso9660 = a->format_data;
int ret = ARCHIVE_OK;
free(iso9660->zisofs.block_pointers);
if (iso9660->zisofs.stream_valid &&
deflateEnd(&(iso9660->zisofs.stream)) != Z_OK) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Failed to clean up compressor");
ret = ARCHIVE_FATAL;
}
iso9660->zisofs.block_pointers = NULL;
iso9660->zisofs.stream_valid = 0;
return (ret);
}
struct zisofs_extract {
int pz_log2_bs; /* Log2 of block size */
uint64_t pz_uncompressed_size;
size_t uncompressed_buffer_size;
int initialized:1;
int header_passed:1;
uint32_t pz_offset;
unsigned char *block_pointers;
size_t block_pointers_size;
size_t block_pointers_avail;
size_t block_off;
uint32_t block_avail;
z_stream stream;
int stream_valid;
};
static ssize_t
zisofs_extract_init(struct archive_write *a, struct zisofs_extract *zisofs,
const unsigned char *p, size_t bytes)
{
size_t avail = bytes;
size_t _ceil, xsize;
/* Allocate block pointers buffer. */
_ceil = (size_t)((zisofs->pz_uncompressed_size +
(((int64_t)1) << zisofs->pz_log2_bs) - 1)
>> zisofs->pz_log2_bs);
xsize = (_ceil + 1) * 4;
if (zisofs->block_pointers == NULL) {
size_t alloc = ((xsize >> 10) + 1) << 10;
zisofs->block_pointers = malloc(alloc);
if (zisofs->block_pointers == NULL) {
archive_set_error(&a->archive, ENOMEM,
"No memory for zisofs decompression");
return (ARCHIVE_FATAL);
}
}
zisofs->block_pointers_size = xsize;
/* Allocate uncompressed data buffer. */
zisofs->uncompressed_buffer_size = (size_t)1UL << zisofs->pz_log2_bs;
/*
* Read the file header, and check the magic code of zisofs.
*/
if (!zisofs->header_passed) {
int err = 0;
if (avail < 16) {
archive_set_error(&a->archive,
ARCHIVE_ERRNO_FILE_FORMAT,
"Illegal zisofs file body");
return (ARCHIVE_FATAL);
}
if (memcmp(p, zisofs_magic, sizeof(zisofs_magic)) != 0)
err = 1;
else if (archive_le32dec(p + 8) != zisofs->pz_uncompressed_size)
err = 1;
else if (p[12] != 4 || p[13] != zisofs->pz_log2_bs)
err = 1;
if (err) {
archive_set_error(&a->archive,
ARCHIVE_ERRNO_FILE_FORMAT,
"Illegal zisofs file body");
return (ARCHIVE_FATAL);
}
avail -= 16;
p += 16;
zisofs->header_passed = 1;
}
/*
* Read block pointers.
*/
if (zisofs->header_passed &&
zisofs->block_pointers_avail < zisofs->block_pointers_size) {
xsize = zisofs->block_pointers_size
- zisofs->block_pointers_avail;
if (avail < xsize)
xsize = avail;
memcpy(zisofs->block_pointers
+ zisofs->block_pointers_avail, p, xsize);
zisofs->block_pointers_avail += xsize;
avail -= xsize;
if (zisofs->block_pointers_avail
== zisofs->block_pointers_size) {
/* We've got all block pointers and initialize
* related variables. */
zisofs->block_off = 0;
zisofs->block_avail = 0;
/* Complete a initialization */
zisofs->initialized = 1;
}
}
return ((ssize_t)avail);
}
static ssize_t
zisofs_extract(struct archive_write *a, struct zisofs_extract *zisofs,
const unsigned char *p, size_t bytes)
{
size_t avail;
int r;
if (!zisofs->initialized) {
ssize_t rs = zisofs_extract_init(a, zisofs, p, bytes);
if (rs < 0)
return (rs);
if (!zisofs->initialized) {
/* We need more data. */
zisofs->pz_offset += (uint32_t)bytes;
return (bytes);
}
avail = rs;
p += bytes - avail;
} else
avail = bytes;
/*
* Get block offsets from block pointers.
*/
if (zisofs->block_avail == 0) {
uint32_t bst, bed;
if (zisofs->block_off + 4 >= zisofs->block_pointers_size) {
/* There isn't a pair of offsets. */
archive_set_error(&a->archive,
ARCHIVE_ERRNO_FILE_FORMAT,
"Illegal zisofs block pointers");
return (ARCHIVE_FATAL);
}
bst = archive_le32dec(
zisofs->block_pointers + zisofs->block_off);
if (bst != zisofs->pz_offset + (bytes - avail)) {
archive_set_error(&a->archive,
ARCHIVE_ERRNO_FILE_FORMAT,
"Illegal zisofs block pointers(cannot seek)");
return (ARCHIVE_FATAL);
}
bed = archive_le32dec(
zisofs->block_pointers + zisofs->block_off + 4);
if (bed < bst) {
archive_set_error(&a->archive,
ARCHIVE_ERRNO_FILE_FORMAT,
"Illegal zisofs block pointers");
return (ARCHIVE_FATAL);
}
zisofs->block_avail = bed - bst;
zisofs->block_off += 4;
/* Initialize compression library for new block. */
if (zisofs->stream_valid)
r = inflateReset(&zisofs->stream);
else
r = inflateInit(&zisofs->stream);
if (r != Z_OK) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Can't initialize zisofs decompression.");
return (ARCHIVE_FATAL);
}
zisofs->stream_valid = 1;
zisofs->stream.total_in = 0;
zisofs->stream.total_out = 0;
}
/*
* Make uncompressed data.
*/
if (zisofs->block_avail == 0) {
/*
* It's basically 32K bytes NUL data.
*/
unsigned char *wb;
size_t size, wsize;
size = zisofs->uncompressed_buffer_size;
while (size) {
wb = wb_buffptr(a);
if (size > wb_remaining(a))
wsize = wb_remaining(a);
else
wsize = size;
memset(wb, 0, wsize);
r = wb_consume(a, wsize);
if (r < 0)
return (r);
size -= wsize;
}
} else {
zisofs->stream.next_in = (Bytef *)(uintptr_t)(const void *)p;
if (avail > zisofs->block_avail)
zisofs->stream.avail_in = zisofs->block_avail;
else
zisofs->stream.avail_in = (uInt)avail;
zisofs->stream.next_out = wb_buffptr(a);
zisofs->stream.avail_out = (uInt)wb_remaining(a);
r = inflate(&zisofs->stream, 0);
switch (r) {
case Z_OK: /* Decompressor made some progress.*/
case Z_STREAM_END: /* Found end of stream. */
break;
default:
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"zisofs decompression failed (%d)", r);
return (ARCHIVE_FATAL);
}
avail -= zisofs->stream.next_in - p;
zisofs->block_avail -= (uint32_t)(zisofs->stream.next_in - p);
r = wb_consume(a, wb_remaining(a) - zisofs->stream.avail_out);
if (r < 0)
return (r);
}
zisofs->pz_offset += (uint32_t)bytes;
return (bytes - avail);
}
static int
zisofs_rewind_boot_file(struct archive_write *a)
{
struct iso9660 *iso9660 = a->format_data;
struct isofile *file;
unsigned char *rbuff;
ssize_t r;
size_t remaining, rbuff_size;
struct zisofs_extract zext;
int64_t read_offset, write_offset, new_offset;
int fd, ret = ARCHIVE_OK;
file = iso9660->el_torito.boot->file;
/*
* There is nothing to do if this boot file does not have
* zisofs header.
*/
if (file->zisofs.header_size == 0)
return (ARCHIVE_OK);
/*
* Uncompress the zisofs'ed file contents.
*/
memset(&zext, 0, sizeof(zext));
zext.pz_uncompressed_size = file->zisofs.uncompressed_size;
zext.pz_log2_bs = file->zisofs.log2_bs;
fd = iso9660->temp_fd;
new_offset = wb_offset(a);
read_offset = file->content.offset_of_temp;
remaining = (size_t)file->content.size;
if (remaining > 1024 * 32)
rbuff_size = 1024 * 32;
else
rbuff_size = remaining;
rbuff = malloc(rbuff_size);
if (rbuff == NULL) {
archive_set_error(&a->archive, ENOMEM, "Can't allocate memory");
return (ARCHIVE_FATAL);
}
while (remaining) {
size_t rsize;
ssize_t rs;
/* Get the current file pointer. */
write_offset = lseek(fd, 0, SEEK_CUR);
/* Change the file pointer to read. */
lseek(fd, read_offset, SEEK_SET);
rsize = rbuff_size;
if (rsize > remaining)
rsize = remaining;
rs = read(iso9660->temp_fd, rbuff, rsize);
if (rs <= 0) {
archive_set_error(&a->archive, errno,
"Can't read temporary file(%jd)", (intmax_t)rs);
ret = ARCHIVE_FATAL;
break;
}
remaining -= rs;
read_offset += rs;
/* Put the file pointer back to write. */
lseek(fd, write_offset, SEEK_SET);
r = zisofs_extract(a, &zext, rbuff, rs);
if (r < 0) {
ret = (int)r;
break;
}
}
if (ret == ARCHIVE_OK) {
/*
* Change the boot file content from zisofs'ed data
* to plain data.
*/
file->content.offset_of_temp = new_offset;
file->content.size = file->zisofs.uncompressed_size;
archive_entry_set_size(file->entry, file->content.size);
/* Set to be no zisofs. */
file->zisofs.header_size = 0;
file->zisofs.log2_bs = 0;
file->zisofs.uncompressed_size = 0;
r = wb_write_padding_to_temp(a, file->content.size);
if (r < 0)
ret = ARCHIVE_FATAL;
}
/*
* Free the resource we used in this function only.
*/
free(rbuff);
free(zext.block_pointers);
if (zext.stream_valid && inflateEnd(&(zext.stream)) != Z_OK) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"Failed to clean up compressor");
ret = ARCHIVE_FATAL;
}
return (ret);
}
#else
static int
zisofs_write_to_temp(struct archive_write *a, const void *buff, size_t s)
{
(void)buff; /* UNUSED */
(void)s; /* UNUSED */
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, "Programing error");
return (ARCHIVE_FATAL);
}
static int
zisofs_rewind_boot_file(struct archive_write *a)
{
struct iso9660 *iso9660 = a->format_data;
if (iso9660->el_torito.boot->file->zisofs.header_size != 0) {
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
"We cannot extract the zisofs imaged boot file;"
" this may not boot in being zisofs imaged");
return (ARCHIVE_FAILED);
}
return (ARCHIVE_OK);
}
static int
zisofs_finish_entry(struct archive_write *a)
{
(void)a; /* UNUSED */
return (ARCHIVE_OK);
}
static int
zisofs_free(struct archive_write *a)
{
(void)a; /* UNUSED */
return (ARCHIVE_OK);
}
#endif /* HAVE_ZLIB_H */