Imported Upstream version 1.1.11upstream/1.1.11upstream

1 files changed, 1213 insertions, 0 deletions

diff --git a/genisoimage/udf.c b/genisoimage/udf.c
new file mode 100644
index 0000000..c63d372
--- /dev/null
+++ b/genisoimage/udf.c
@@ -0,0 +1,1213 @@
+/*
+ * This file has been modified for the cdrkit suite.
+ *
+ * The behaviour and appearence of the program code below can differ to a major
+ * extent from the version distributed by the original author(s).
+ *
+ * For details, see Changelog file distributed with the cdrkit package. If you
+ * received this file from another source then ask the distributing person for
+ * a log of modifications.
+ *
+ */
+
+/* @(#)udf.c	1.14 04/04/15 Copyright 2001 J. Schilling */
+/*
+ * udf.c - UDF support for genisoimage
+ *
+ * Written by Ben Rudiak-Gould (2001).
+ *
+ * Copyright 2001 J. Schilling.
+ */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING.  If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Some remaining issues:
+ *
+ * - Do not forget to edit joliet.c and remove the VIDEO_TS lines after
+ *   we did implement a decent own file name handling for UDF.
+ *
+ * - UDF supports UNIX-style file permissions and uid/gid, but currently
+ *   this code just sets them to default values and ignores their Rock
+ *   Ridge counterparts. This would be easy to fix.
+ *
+ * - There's no support for symlinks, Mac type/creator, or Mac resource
+ *   forks. Hard links and followed symlinks may work, but if so, it's
+ *   only by accident.
+ *
+ * - The file system mirrors the Joliet file system, so files excluded
+ *   from Joliet will also be excluded from UDF, the -jcharset option
+ *   also applies to UDF, file names too long for Joliet will also be
+ *   truncated on UDF, and characters not allowed by Joliet will also
+ *   be translated on UDF. (Fortunately, Joliet is pretty lenient.)
+ *
+ * - convert_to_unicode is always called with in_nls, not hfs_nls. This
+ *   may lead to incorrect name conversion sometimes when using a Mac
+ *   filesystem. See joliet.c for an example of what's supposed to be
+ *   done.
+ *
+ * - DVD-Video discs are supposed to have Copyright Management Information
+ *   in both the ISO and UDF filesystems. This is not implemented in ISO,
+ *   and the code to do it in UDF is currently #ifdef'd out. I'm not sure
+ *   whether discs without this information are actually DVD-Video
+ *   compliant. The Copyright Management Information is described in ECMA
+ *   Technical Report TR/71.
+ *
+ * - Most of the space before sector 256 on the disc (~480K) is wasted,
+ *   because UDF Bridge requires a pointer block at sector 256. ISO 9660
+ *   structures could be moved below sector 256 if they're small enough, but
+ *   this would be ugly to implement since it breaks the output_fragment
+ *   abstraction.
+ *
+ * - Each file must have a File Entry, and each File Entry seems to
+ *   require its own 2K sector. As a result, there is an overhead of more
+ *   than 2K *per file* when using UDF. I couldn't see any way to avoid
+ *   this.
+ *
+ * - Read performance would probably be improved by placing the File Entry
+ *   for each file just before the file itself, instead of at the beginning
+ *   of the disc. But this would not work for DVD-Video files, which have
+ *   to be stored contiguously. So there would have to be an override
+ *   mechanism to handle this case. I don't know if it's worth the trouble.
+ */
+
+#ifdef UDF
+
+#include "config.h"
+#include "genisoimage.h"
+#include <timedefs.h>
+#include <schily.h>
+
+#include "udf.h"
+#include "udf_fs.h"
+
+extern	int	use_sparcboot;
+
+extern struct directory *root;
+extern time_t		begun;
+
+static unsigned lba_main_seq;
+static unsigned lba_main_seq_copy;
+static unsigned lba_integ_seq;
+static unsigned lba_udf_partition_start;
+static unsigned lba_last_file_entry;
+static unsigned lba_end_anchor_vol_desc;
+
+static unsigned num_udf_files;
+static unsigned num_udf_directories;
+
+static unsigned volume_set_id[2];
+
+#define	UDF_MAIN_SEQ_LENGTH (16)
+#define	UDF_INTEG_SEQ_LENGTH (2)
+
+/* only works for granularity a power of 2! */
+#define	PAD(val, granularity)	(((val)+(granularity)-1)&~((granularity)-1))
+
+#define	read_733(field) ((0[field]&255)+(1[field]&255)*256+(2[field]&255)*65536+(3[field]&255)*16777216)
+
+
+/**************** SIZE ****************/
+
+static int set_file_ident_desc(unsigned char *, unsigned, char *, int, 
+										 unsigned, unsigned);
+
+static unsigned
+directory_size(struct directory *dpnt)
+{
+	unsigned size_in_bytes;
+	struct directory_entry *de;
+	Uchar dummy_buf[SECTOR_SIZE];
+
+	/* parent directory */
+	size_in_bytes = set_file_ident_desc(dummy_buf, 0, 0, 0, 0, 0);
+
+	/* directory contents */
+	for (de = dpnt->jcontents; de; de = de->jnext) {
+		if (!(de->de_flags & INHIBIT_JOLIET_ENTRY)) {
+			char *name = USE_MAC_NAME(de) ? de->hfs_ent->name : de->name;
+			/* skip . and .. */
+			if (name[0] == '.' && (name[1] == 0 || (name[1] == '.' && name[2] == 0)))
+				continue;
+			size_in_bytes += set_file_ident_desc(dummy_buf, 0, name, 0, 0, 0);
+		}
+	}
+	return (size_in_bytes);
+}
+
+static void
+assign_udf_directory_addresses(struct directory *dpnt)
+{
+	if (!(dpnt->dir_flags & INHIBIT_JOLIET_ENTRY)) {
+		dpnt->self->udf_file_entry_sector = last_extent;
+		last_extent += 1 + ISO_BLOCKS(directory_size(dpnt));
+		++num_udf_directories;
+	}
+	if (!(dpnt->dir_flags & INHIBIT_JOLIET_ENTRY) || dpnt == reloc_dir) {
+		for (dpnt = dpnt->subdir; dpnt; dpnt = dpnt->next) {
+			assign_udf_directory_addresses(dpnt);
+		}
+	}
+}
+
+static void
+assign_udf_file_entry_addresses(struct directory *dpnt)
+{
+	if (!(dpnt->dir_flags & INHIBIT_JOLIET_ENTRY)) {
+		struct directory_entry *de;
+		for (de = dpnt->jcontents; de; de = de->jnext) {
+			if (!(de->de_flags & RELOCATED_DIRECTORY) &&
+			    !(de->isorec.flags[0] & ISO_DIRECTORY)) {
+				de->udf_file_entry_sector = last_extent++;
+				++num_udf_files;
+			}
+		}
+	}
+	if (!(dpnt->dir_flags & INHIBIT_JOLIET_ENTRY) || dpnt == reloc_dir) {
+		for (dpnt = dpnt->subdir; dpnt; dpnt = dpnt->next) {
+			assign_udf_file_entry_addresses(dpnt);
+		}
+	}
+}
+
+/****************************/
+
+static int
+udf_vol_recognition_area_size(int starting_extent)
+{
+	last_extent = starting_extent+3;
+	return (0);
+}
+
+static int
+udf_main_seq_size(int starting_extent)
+{
+	lba_main_seq = starting_extent;
+	last_extent = starting_extent + UDF_MAIN_SEQ_LENGTH;
+	return (0);
+}
+
+static int
+udf_main_seq_copy_size(int starting_extent)
+{
+	lba_main_seq_copy = starting_extent;
+	last_extent = starting_extent + UDF_MAIN_SEQ_LENGTH;
+	return (0);
+}
+
+static int
+udf_integ_seq_size(int starting_extent)
+{
+	lba_integ_seq = starting_extent;
+	last_extent = starting_extent + UDF_INTEG_SEQ_LENGTH;
+	return (0);
+}
+
+static int
+udf_end_anchor_vol_desc_size(int starting_extent)
+{
+	lba_end_anchor_vol_desc = starting_extent;
+	last_extent = starting_extent+1;
+	return (0);
+}
+
+static int
+udf_file_set_desc_size(int starting_extent)
+{
+	lba_udf_partition_start = starting_extent;
+	last_extent = starting_extent+2;
+	return (0);
+}
+
+static int
+udf_dirtree_size(int starting_extent)
+{
+	num_udf_directories = 0;
+	assign_udf_directory_addresses(root);
+	return (0);
+}
+
+static int
+udf_file_entries_size(int starting_extent)
+{
+	num_udf_files = 0;
+	assign_udf_file_entry_addresses(root);
+	lba_last_file_entry = last_extent-1;
+	return (0);
+}
+
+static int
+udf_pad_to_sector_32_size(int starting_extent)
+{
+	if (last_extent < session_start+32)
+		last_extent = session_start+32;
+	return (0);
+}
+
+static int
+udf_pad_to_sector_256_size(int starting_extent)
+{
+	if (last_extent < session_start+256)
+		last_extent = session_start+256;
+	return (0);
+}
+
+static int
+udf_padend_avdp_size(int starting_extent)
+{
+	lba_end_anchor_vol_desc = starting_extent;
+
+	/* add at least 16 and at most 31 sectors, ending at a mult. of 16 */
+	last_extent = (starting_extent+31) & ~15;
+	if (!use_sparcboot)
+		last_extent = starting_extent + 150;
+	return (0);
+}
+
+extern int oneblock_size(int);
+
+/**************** WRITE ****************/
+
+static unsigned
+crc_ccitt(unsigned char *buf, unsigned len)
+{
+	const unsigned poly = 0x11021;
+	static unsigned short lookup[256];
+	unsigned int r;
+	unsigned int i;
+
+	if (lookup[1] == 0) {
+		unsigned int j, k;
+		for (j = 0; j < 256; ++j) {
+			unsigned int temp = j << 8;
+			for (k = 0; k < 8; ++k) {
+				unsigned int hibit = temp & 32768;
+				temp <<= 1;
+				if (hibit)
+					temp ^= poly;
+			}
+			lookup[j] = temp;
+		}
+	}
+
+	r = 0;
+	for (i = 0; i < len; ++i) {
+		r = (r << 8) ^ lookup[((r >> 8) ^ buf[i]) & 255];
+	}
+
+	return (r & 65535);
+}
+
+#define	set8(dst, src)	do { *(dst) = (src); } while (0)
+
+static void
+set16(udf_Uint16 *dst, unsigned int src)
+{
+	dst->l = (char)(src);
+	dst->h = (char)(src>>8);
+}
+
+static void
+set32(udf_Uint32 *dst, unsigned src)
+{
+	dst->l  = (char)(src);
+	dst->ml = (char)(src>>8);
+	dst->mh = (char)(src>>16);
+	dst->h  = (char)(src>>24);
+}
+
+static void
+set64(udf_Uint64 *dst, uint64_t src)
+{
+	set32(&dst->l, src);
+	set32(&dst->h, src>>32);
+}
+
+static int
+set_ostaunicode(unsigned char *dst, int dst_size, char *src)
+{
+	unsigned char buf[1024];
+	int i;
+	int expanded_length;
+
+	expanded_length = joliet_strlen(src, in_nls);
+	if (expanded_length > 1024)
+		expanded_length = 1024;
+	if (expanded_length > (dst_size-1)*2)
+		expanded_length = (dst_size-1)*2;
+
+	convert_to_unicode(buf, expanded_length, src, in_nls);
+	dst[0] = 8;	/* use 8-bit representation by default */
+	for (i = 0; i < (expanded_length>>1); ++i) {
+		dst[i + 1] = buf[i*2+1];
+		if (buf[i*2] != 0) {
+			/*
+			 * There's a Unicode character with value >=256.
+			 * Use 16-bit representation instead.
+			 */
+			int length_to_copy = (dst_size-1) & ~1;
+			if (length_to_copy > expanded_length)
+				length_to_copy = expanded_length;
+			dst[0] = 16;
+			memcpy(dst+1, buf, length_to_copy);
+			return (length_to_copy + 1);
+		}
+	}
+	return ((expanded_length>>1) + 1);
+}
+
+static void
+set_extent(udf_extent_ad *ext, unsigned lba, unsigned length_bytes)
+{
+	set32(&ext->extent_length, length_bytes);
+	set32(&ext->extent_location, lba);
+}
+
+static void
+set_dstring(udf_dstring *dst, char *src, int n)
+{
+	dst[n-1] = set_ostaunicode((Uchar *)dst, n-1, src);
+}
+
+static void
+set_charspec(udf_charspec *dst)
+{
+	/*set8(&dst->character_set_type, 0);*/
+	memcpy(dst->character_set_info, "OSTA Compressed Unicode", 23);
+}
+
+static void
+set_impl_ident(udf_EntityID *ent)
+{
+	strcpy((char *)ent->ident, "*genisoimage");
+}
+
+static void
+set_tag(udf_tag *t, unsigned tid, unsigned lba, int crc_length)
+{
+	unsigned char checksum;
+	int i;
+
+	set16(&t->tag_ident, tid);
+	set16(&t->desc_version, 2);
+	set16(&t->desc_crc, crc_ccitt((unsigned char *)t+16, crc_length-16));
+	set16(&t->desc_crc_length, crc_length-16);
+	set32(&t->tag_location, lba);
+	set8(&t->tag_checksum, 0);
+	checksum = 0;
+	for (i = 0; i < 16; ++i)
+		checksum += ((unsigned char *)t)[i];
+	set8(&t->tag_checksum, checksum);
+}
+
+static void
+set_timestamp_from_iso_date(udf_timestamp *ts, const char *iso_date_raw)
+{
+	struct {
+		unsigned char years_since_1900;
+		unsigned char month, day;
+		unsigned char hour, minute, second;
+		signed char offset_from_gmt;
+	} *iso_date = (void *)iso_date_raw;
+
+	set16(&ts->type_and_time_zone,
+		4096 + ((iso_date->offset_from_gmt * 15) & 4095));
+	set16(&ts->year, 1900 + iso_date->years_since_1900);
+	set8(&ts->month, iso_date->month);
+	set8(&ts->day, iso_date->day);
+	set8(&ts->hour, iso_date->hour);
+	set8(&ts->minute, iso_date->minute);
+	set8(&ts->second, iso_date->second);
+	/*set8(&ts->centiseconds, 0);*/
+	/*set8(&ts->hundreds_of_microseconds, 0);*/
+	/*set8(&ts->microseconds, 0);*/
+}
+
+static void
+set_timestamp_from_time_t(udf_timestamp *ts, time_t t)
+{
+	char iso_date[7];
+	iso9660_date(iso_date, t);
+	set_timestamp_from_iso_date(ts, iso_date);
+}
+
+
+static void
+set_anchor_volume_desc_pointer(unsigned char *buf, unsigned lba)
+{
+	udf_anchor_volume_desc_ptr *avdp = (udf_anchor_volume_desc_ptr *)buf;
+	set_extent(&avdp->main_volume_desc_seq_extent,
+		lba_main_seq, SECTOR_SIZE*UDF_MAIN_SEQ_LENGTH);
+	set_extent(&avdp->reserve_volume_desc_seq_extent,
+		lba_main_seq_copy, SECTOR_SIZE*UDF_MAIN_SEQ_LENGTH);
+	set_tag(&avdp->desc_tag, UDF_TAGID_ANCHOR_VOLUME_DESC_PTR, lba, 512);
+}
+
+static void
+set_primary_vol_desc(unsigned char *buf, unsigned lba)
+{
+	char temp[17];
+
+	udf_primary_volume_desc *pvd = (udf_primary_volume_desc *)buf;
+	/*set32(&pvd->volume_desc_seq_number, 0);*/
+	/*set32(&pvd->primary_volume_desc_number, 0);*/
+	set_dstring(pvd->volume_ident, volume_id, sizeof (pvd->volume_ident));
+	set16(&pvd->volume_seq_number, 1);
+	set16(&pvd->maximum_volume_seq_number, 1);
+	set16(&pvd->interchange_level, 2);
+	set16(&pvd->maximum_interchange_level, 2);
+	set32(&pvd->character_set_list, 1);
+	set32(&pvd->maximum_character_set_list, 1);
+	sprintf(temp, "%08X%08X", volume_set_id[0], volume_set_id[1]);
+	set_dstring(pvd->volume_set_ident, temp,
+					sizeof (pvd->volume_set_ident));
+	set_charspec(&pvd->desc_character_set);
+	set_charspec(&pvd->explanatory_character_set);
+	/*pvd->volume_abstract;*/
+	/*pvd->volume_copyright_notice;*/
+	/*pvd->application_ident;*/
+	set_timestamp_from_time_t(&pvd->recording_date_and_time, begun);
+	set_impl_ident(&pvd->impl_ident);
+	set_tag(&pvd->desc_tag, UDF_TAGID_PRIMARY_VOLUME_DESC, lba, 512);
+}
+
+static void
+set_impl_use_vol_desc(unsigned char *buf, unsigned lba)
+{
+	udf_impl_use_volume_desc *iuvd = (udf_impl_use_volume_desc *)buf;
+	set32(&iuvd->volume_desc_seq_number, 1);
+	strcpy((char *)iuvd->impl_ident.ident, "*UDF LV Info");
+	iuvd->impl_ident.ident_suffix[0] = 2;
+	iuvd->impl_ident.ident_suffix[1] = 1;
+	set_charspec(&iuvd->impl_use.lvi_charset);
+	set_dstring(iuvd->impl_use.logical_volume_ident, volume_id,
+		sizeof (iuvd->impl_use.logical_volume_ident));
+	/*set_dstring(iuvd->impl_use.lv_info1, "", sizeof (iuvd->impl_use.lv_info1));*/
+	/*set_dstring(iuvd->impl_use.lv_info2, "", sizeof (iuvd->impl_use.lv_info2));*/
+	/*set_dstring(iuvd->impl_use.lv_info3, "", sizeof (iuvd->impl_use.lv_info3));*/
+	set_impl_ident(&iuvd->impl_use.impl_id);
+	set_tag(&iuvd->desc_tag, UDF_TAGID_IMPL_USE_VOLUME_DESC, lba, 512);
+}
+
+static void
+set_partition_desc(unsigned char *buf, unsigned lba)
+{
+	udf_partition_desc *pd = (udf_partition_desc *)buf;
+	set32(&pd->volume_desc_seq_number, 2);
+	set16(&pd->partition_flags, UDF_PARTITION_FLAG_ALLOCATED);
+	/*set16(&pd->partition_number, 0);*/
+	set8(&pd->partition_contents.flags, UDF_ENTITYID_FLAG_PROTECTED);	/*???*/
+	strcpy((char *)pd->partition_contents.ident, "+NSR02");
+	set32(&pd->access_type, UDF_ACCESSTYPE_READONLY);
+	set32(&pd->partition_starting_location, lba_udf_partition_start);
+	set32(&pd->partition_length,
+			lba_end_anchor_vol_desc - lba_udf_partition_start);
+	set_impl_ident(&pd->impl_ident);
+	set_tag(&pd->desc_tag, UDF_TAGID_PARTITION_DESC, lba, 512);
+}
+
+static void
+set_domain_ident(udf_EntityID *ent)
+{
+	strcpy((char *)ent->ident, "*OSTA UDF Compliant");
+	memcpy(ent->ident_suffix, "\002\001\003", 3);
+}
+
+static void
+set_logical_vol_desc(unsigned char *buf, unsigned lba)
+{
+	udf_logical_volume_desc *lvd = (udf_logical_volume_desc *)buf;
+	set32(&lvd->volume_desc_seq_number, 3);
+	set_charspec(&lvd->desc_character_set);
+	set_dstring(lvd->logical_volume_ident, volume_id,
+					sizeof (lvd->logical_volume_ident));
+	set32(&lvd->logical_block_size, SECTOR_SIZE);
+	set_domain_ident(&lvd->domain_ident);
+	set32(&lvd->logical_volume_contents_use.extent_length, 2*SECTOR_SIZE);
+	/*set32(&lvd->logical_volume_contents_use.extent_location.logical_block_number, 0);*/
+	/*set16(&lvd->logical_volume_contents_use.extent_location.partition_reference_number, 0);*/
+	set32(&lvd->map_table_length, 6);
+	set32(&lvd->number_of_partition_maps, 1);
+	set_impl_ident(&lvd->impl_ident);
+	set_extent(&lvd->integrity_seq_extent, lba_integ_seq,
+					SECTOR_SIZE*UDF_INTEG_SEQ_LENGTH);
+	set8(&lvd->partition_map[0].partition_map_type,
+					UDF_PARTITION_MAP_TYPE_1);
+	set8(&lvd->partition_map[0].partition_map_length, 6);
+	set16(&lvd->partition_map[0].volume_seq_number, 1);
+	/*set16(&lvd->partition_map[0].partition_number, 0);*/
+	set_tag(&lvd->desc_tag, UDF_TAGID_LOGICAL_VOLUME_DESC, lba, 446);
+}
+
+static void
+set_unallocated_space_desc(unsigned char *buf, unsigned lba)
+{
+	udf_unallocated_space_desc *usd = (udf_unallocated_space_desc *)buf;
+	set32(&usd->volume_desc_seq_number, 4);
+	/*set32(&usd->number_of_allocation_descs, 0);*/
+	set_tag(&usd->desc_tag, UDF_TAGID_UNALLOCATED_SPACE_DESC, lba, 24);
+}
+
+static void
+set_terminating_desc(unsigned char *buf, unsigned lba)
+{
+	udf_terminating_desc *td = (udf_terminating_desc *)buf;
+	set_tag(&td->desc_tag, UDF_TAGID_TERMINATING_DESC, lba, 512);
+}
+
+static void
+set_logical_vol_integrity_desc(unsigned char *buf, unsigned lba)
+{
+	udf_logical_volume_integrity_desc *lvid =
+				(udf_logical_volume_integrity_desc *)buf;
+
+	set_timestamp_from_time_t(&lvid->recording_date, begun);
+	set32(&lvid->integrity_type, UDF_INTEGRITY_TYPE_CLOSE);
+	/*lvid->next_integrity_extent;*/
+	set64(&lvid->logical_volume_contents_use.unique_id,
+						lba_last_file_entry+1);
+	set32(&lvid->number_of_partitions, 1);
+	set32(&lvid->length_of_impl_use, 46);
+	/*set32(&lvid->free_space_table, 0);*/
+	set32(&lvid->size_table,
+			lba_end_anchor_vol_desc - lba_udf_partition_start);
+	set_impl_ident(&lvid->impl_use.impl_id);
+	set32(&lvid->impl_use.number_of_files, num_udf_files);
+	set32(&lvid->impl_use.number_of_directories, num_udf_directories);
+	set16(&lvid->impl_use.minimum_udf_read_revision, 0x102);
+	set16(&lvid->impl_use.minimum_udf_write_revision, 0x102);
+	set16(&lvid->impl_use.maximum_udf_write_revision, 0x102);
+	set_tag(&lvid->desc_tag, UDF_TAGID_LOGICAL_VOLUME_INTEGRITY_DESC,
+								lba, 88+46);
+}
+
+static void
+set_file_set_desc(unsigned char *buf, unsigned rba)
+{
+	udf_file_set_desc *fsd = (udf_file_set_desc *)buf;
+
+	set_timestamp_from_time_t(&fsd->recording_date_and_time, begun);
+	set16(&fsd->interchange_level, 3);
+	set16(&fsd->maximum_interchange_level, 3);
+	set32(&fsd->character_set_list, 1);
+	set32(&fsd->maximum_character_set_list, 1);
+	/*set32(&fsd->file_set_number, 0);*/
+	/*set32(&fsd->file_set_desc_number, 0);*/
+	set_charspec(&fsd->logical_volume_ident_character_set);
+	set_dstring(fsd->logical_volume_ident, volume_id,
+					sizeof (fsd->logical_volume_ident));
+	set_charspec(&fsd->file_set_character_set);
+	set_dstring(fsd->file_set_ident, volume_id,
+					sizeof (fsd->file_set_ident));
+	/*fsd->copyright_file_ident;*/
+	/*fsd->abstract_file_ident;*/
+	set32(&fsd->root_directory_icb.extent_length, SECTOR_SIZE);
+	set32(&fsd->root_directory_icb.extent_location.logical_block_number,
+		root->self->udf_file_entry_sector - lba_udf_partition_start);
+	set_domain_ident(&fsd->domain_ident);
+	/*fsd->next_extent;*/
+	set_tag(&fsd->desc_tag, UDF_TAGID_FILE_SET_DESC, rba, 512);
+}
+
+static int
+set_file_ident_desc(unsigned char *buf, unsigned rba, char *name, 
+						  int is_directory, unsigned file_entry_rba, 
+						  unsigned unique_id)
+{
+	udf_file_ident_desc *fid = (udf_file_ident_desc *)buf;
+	int length_of_file_ident, length, padded_length;
+	set16(&fid->file_version_number, 1);
+	set8(&fid->file_characteristics,
+		(is_directory ? UDF_FILE_CHARACTERISTIC_DIRECTORY : 0)
+		+ (name == 0) * UDF_FILE_CHARACTERISTIC_PARENT);
+	set32(&fid->icb.extent_length, SECTOR_SIZE);
+	set32(&fid->icb.extent_location.logical_block_number, file_entry_rba);
+	set16(&fid->icb.extent_location.partition_reference_number, 0);
+	set32(&fid->icb.impl_use.unique_id, unique_id);
+	set16(&fid->length_of_impl_use, 0);
+	if (name) {
+		length_of_file_ident =
+			set_ostaunicode((Uchar *)fid->file_ident, 512, name);
+	} else {
+		length_of_file_ident = 0;
+	}
+	set8(&fid->length_of_file_ident, length_of_file_ident);
+	length = 38 + length_of_file_ident;
+	padded_length = PAD(length, 4);
+	while (length < padded_length) {
+		buf[length++] = 0;
+	}
+	set_tag(&fid->desc_tag, UDF_TAGID_FILE_IDENT_DESC, rba, length);
+	return (length);
+}
+
+static void
+set_file_entry(unsigned char *buf, unsigned rba, unsigned file_rba,
+					uint64_t length, const char *iso_date, int is_directory,
+					unsigned link_count, unsigned unique_id)
+{
+	udf_short_ad	*allocation_desc;
+	unsigned	chunk;
+
+	udf_file_entry *fe = (udf_file_entry *)buf;
+
+	/*set32(&fe->icb_tag.prior_recorded_number_of_direct_entries, 0);*/
+	set16(&fe->icb_tag.strategy_type, 4);
+	/*set16(&fe->icb_tag.strategy_parameter, 0);*/
+	set16(&fe->icb_tag.maximum_number_of_entries, 1);
+	set8(&fe->icb_tag.file_type, is_directory
+		? UDF_ICBTAG_FILETYPE_DIRECTORY : UDF_ICBTAG_FILETYPE_BYTESEQ);
+	/*fe->icb_tag.parent_icb_location;*/
+	set16(&fe->icb_tag.flags, UDF_ICBTAG_FLAG_NONRELOCATABLE
+		| UDF_ICBTAG_FLAG_ARCHIVE | UDF_ICBTAG_FLAG_CONTIGUOUS);
+	if (rationalize_uid)
+		set32(&fe->uid, uid_to_use);
+	else
+		set32(&fe->uid, -1);
+	if (rationalize_gid)
+		set32(&fe->gid, gid_to_use);
+	else
+		set32(&fe->gid, -1);
+	if (is_directory) {
+		set32(&fe->permissions,
+		    UDF_FILEENTRY_PERMISSION_OR | UDF_FILEENTRY_PERMISSION_OX |
+		    UDF_FILEENTRY_PERMISSION_GR | UDF_FILEENTRY_PERMISSION_GX |
+		    UDF_FILEENTRY_PERMISSION_UR | UDF_FILEENTRY_PERMISSION_UX);
+	} else {
+		set32(&fe->permissions, UDF_FILEENTRY_PERMISSION_OR
+		| UDF_FILEENTRY_PERMISSION_GR | UDF_FILEENTRY_PERMISSION_UR);
+	}
+	set16(&fe->file_link_count, link_count);
+	/*fe->record_format;*/
+	/*fe->record_display_attributes;*/
+	/*fe->record_length;*/
+	set64(&fe->info_length, length);
+	set64(&fe->logical_blocks_recorded, ISO_BLOCKS(length));
+	if (iso_date) {
+		set_timestamp_from_iso_date(&fe->access_time, iso_date);
+		fe->modification_time = fe->access_time;
+		fe->attribute_time = fe->access_time;
+	}
+	set32(&fe->checkpoint, 1);
+	/*fe->ext_attribute_icb;*/
+	set_impl_ident(&fe->impl_ident);
+	set64(&fe->unique_id, unique_id);
+	/*
+	 * Extended attributes that may (?) be required for DVD-Video
+	 * compliance
+	 */
+#if 0
+	set32(&fe->length_of_ext_attributes, 24+52+56);
+	set32(&fe->ext_attribute_header.impl_attributes_location, 24);
+	set32(&fe->ext_attribute_header.application_attributes_location,
+								24+52+56);
+	set_tag(&fe->ext_attribute_header.desc_tag,
+			UDF_TAGID_EXT_ATTRIBUTE_HEADER_DESC, rba, 24 /*???*/);
+	set32(&fe->ext_attribute_free_ea_space.attribute_type, SECTOR_SIZE);
+	set8(&fe->ext_attribute_free_ea_space.attribute_subtype, 1);
+	set32(&fe->ext_attribute_free_ea_space.attribute_length, 52);
+	set32(&fe->ext_attribute_free_ea_space.impl_use_length, 4);
+	strcpy((char *)fe->ext_attribute_free_ea_space.impl_ident.ident,
+							"*UDF FreeAppEASpace");
+	set32(&fe->ext_attribute_dvd_cgms_info.attribute_type, SECTOR_SIZE);
+	set8(&fe->ext_attribute_dvd_cgms_info.attribute_subtype, 1);
+	set32(&fe->ext_attribute_dvd_cgms_info.attribute_length, 56);
+	set32(&fe->ext_attribute_dvd_cgms_info.impl_use_length, 8);
+	strcpy((char *)fe->ext_attribute_free_ea_space.impl_ident.ident,
+							"*UDF DVD CGMS Info");
+	fe->ext_attribute_free_ea_space.impl_ident.ident_suffix[0] = 2;
+	fe->ext_attribute_free_ea_space.impl_ident.ident_suffix[1] = 1;
+#else
+	/*set32(&fe->length_of_ext_attributes, 0);*/
+#endif
+
+	allocation_desc = &fe->allocation_desc;
+	/*
+	 * Only a file size less than 1GB can be expressed by a single
+	 * AllocationDescriptor. When the size of a file is larger than 1GB,
+	 * 2 or more AllocationDescriptors should be used. We don't know
+	 * whether a singl 8-byte AllocationDescriptor should be written or no
+	 * one should be written if the size of a file is 0 byte. - FIXME.
+	 *
+	 * XXX We get called with buf[2048]. This allows a max. file size of
+	 * XXX 234 GB. With more we would cause a buffer overflow.
+	 * XXX We need to check whether UDF would allow files > 234 GB.
+	 */
+	for (; length > 0; length -= chunk) {
+		chunk = (length > 0x3ffff800) ? 0x3ffff800 : length;
+		set32(&allocation_desc->extent_length, chunk);
+		set32(&allocation_desc->extent_position, file_rba);
+		file_rba += chunk >> 11;
+		allocation_desc++;
+	}
+	set32(&fe->length_of_allocation_descs,
+				(unsigned char *) allocation_desc -
+				(unsigned char *) &fe->allocation_desc);
+	set_tag(&fe->desc_tag, UDF_TAGID_FILE_ENTRY, rba,
+		(unsigned char *) allocation_desc - buf);
+}
+
+static unsigned
+directory_link_count(struct directory *dpnt)
+{
+	/*
+	 * The link count is equal to 1 (for the parent) plus the
+	 * number of subdirectories.
+	 */
+	unsigned link_count = 1;
+	struct directory_entry *de;
+
+	/* count relocated subdirectories */
+	for (de = dpnt->jcontents; de; de = de->jnext) {
+		if ((de->de_flags &
+		    (INHIBIT_JOLIET_ENTRY | RELOCATED_DIRECTORY)) ==
+							RELOCATED_DIRECTORY) {
+			link_count++;
+		}
+	}
+	/* count ordinary subdirectories */
+	for (dpnt = dpnt->subdir; dpnt; dpnt = dpnt->next) {
+		if (!(dpnt->dir_flags & INHIBIT_JOLIET_ENTRY)) {
+			link_count++;
+		}
+	}
+	return (link_count);
+}
+
+static void
+write_one_udf_directory(struct directory *dpnt, FILE *outfile)
+{
+	unsigned size_in_bytes, padded_size_in_bytes;
+	struct directory_entry *de;
+	unsigned ident_size;
+	unsigned base_sector;
+	struct directory *parent;
+	Uchar buf[SECTOR_SIZE];
+
+	memset(buf, 0, SECTOR_SIZE);
+	set_file_entry(
+		buf,
+		last_extent_written - lba_udf_partition_start,
+		last_extent_written+1 - lba_udf_partition_start,
+		directory_size(dpnt),
+		dpnt->self->isorec.date,
+		1,	/* is_directory */
+		directory_link_count(dpnt),
+		(dpnt == root) ? 0 : dpnt->self->udf_file_entry_sector);
+	jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+	xfwrite(buf, SECTOR_SIZE, 1, outfile, 0, FALSE);
+	last_extent_written++;
+
+	base_sector = last_extent_written - lba_udf_partition_start;
+
+	/* parent directory */
+	parent = dpnt->parent;
+	if (parent == reloc_dir) {
+		parent = dpnt->self->parent_rec->filedir;
+	}
+	ident_size = set_file_ident_desc(
+		buf,
+		base_sector,
+		0,
+		1,
+		parent->self->udf_file_entry_sector - lba_udf_partition_start,
+		(parent == root) ? 0 : parent->self->udf_file_entry_sector);
+	jtwrite(buf, ident_size, 1, 0, FALSE);
+	xfwrite(buf, ident_size, 1, outfile, 0, FALSE);
+	size_in_bytes = ident_size;
+
+	/* directory contents */
+	for (de = dpnt->jcontents; de; de = de->jnext) {
+		char *name;
+		struct directory_entry *de1;
+
+		if (de->de_flags & INHIBIT_JOLIET_ENTRY)
+			continue;
+
+		name = USE_MAC_NAME(de) ? de->hfs_ent->name : de->name;
+
+		/* skip . and .. */
+		if (name[0] == '.' && (name[1] == 0 ||
+		    (name[1] == '.' && name[2] == 0)))
+			continue;
+
+		/* look in RR_MOVED for relocated directories */
+		de1 = de;
+		if (de->de_flags & RELOCATED_DIRECTORY) {
+			for (de1 = reloc_dir->contents; de1; de1 = de1->next) {
+				if (de1->parent_rec == de) {
+					break;
+				}
+			}
+			if (!de1) {
+#ifdef	USE_LIBSCHILY
+				comerrno(EX_BAD,
+				"Unable to locate relocated directory\n");
+#else
+				fprintf(stderr,
+				"Unable to locate relocated directory\n");
+				exit(1);
+#endif
+			}
+		}
+
+		ident_size = set_file_ident_desc(
+			buf,
+			base_sector + (size_in_bytes / SECTOR_SIZE),
+			name,
+			!!(de1->isorec.flags[0] & ISO_DIRECTORY),
+			de1->udf_file_entry_sector - lba_udf_partition_start,
+			de1->udf_file_entry_sector);
+		jtwrite(buf, ident_size, 1, 0, FALSE);
+		xfwrite(buf, ident_size, 1, outfile, 0, FALSE);
+		size_in_bytes += ident_size;
+	}
+
+	padded_size_in_bytes = PAD(size_in_bytes, SECTOR_SIZE);
+	if (size_in_bytes < padded_size_in_bytes) {
+		memset(buf, 0, padded_size_in_bytes - size_in_bytes);
+		jtwrite(buf, padded_size_in_bytes - size_in_bytes, 1, 0, FALSE);
+		xfwrite(buf, padded_size_in_bytes - size_in_bytes, 1, outfile, 0, FALSE);
+	}
+
+	last_extent_written += padded_size_in_bytes / SECTOR_SIZE;
+}
+
+static void
+write_udf_directories(struct directory *dpnt, FILE *outfile)
+{
+	if (!(dpnt->dir_flags & INHIBIT_JOLIET_ENTRY)) {
+		write_one_udf_directory(dpnt, outfile);
+	}
+	if (!(dpnt->dir_flags & INHIBIT_JOLIET_ENTRY) || dpnt == reloc_dir) {
+		for (dpnt = dpnt->subdir; dpnt; dpnt = dpnt->next) {
+			write_udf_directories(dpnt, outfile);
+		}
+	}
+}
+
+static void
+write_udf_file_entries(struct directory *dpnt, FILE *outfile)
+{
+	Uchar buf[SECTOR_SIZE];
+
+	memset(buf, 0, SECTOR_SIZE);
+
+	if (!(dpnt->dir_flags & INHIBIT_JOLIET_ENTRY)) {
+		struct directory_entry *de;
+		for (de = dpnt->jcontents; de; de = de->jnext) {
+			if (!(de->de_flags & RELOCATED_DIRECTORY) &&
+			    !(de->isorec.flags[0] & ISO_DIRECTORY)) {
+
+				memset(buf, 0, 512);
+				set_file_entry(
+					buf,
+					(last_extent_written++) - lba_udf_partition_start,
+					read_733(de->isorec.extent) - lba_udf_partition_start,
+					de->realsize,
+					de->isorec.date,
+					0,	/* is_directory */
+					1,	/* link_count */
+					de->udf_file_entry_sector);
+				jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+				xfwrite(buf, SECTOR_SIZE, 1, outfile, 0, FALSE);
+			}
+		}
+	}
+	if (!(dpnt->dir_flags & INHIBIT_JOLIET_ENTRY) || dpnt == reloc_dir) {
+		for (dpnt = dpnt->subdir; dpnt; dpnt = dpnt->next) {
+			write_udf_file_entries(dpnt, outfile);
+		}
+	}
+}
+
+/****************************/
+
+static int
+udf_vol_recognition_area_write(FILE *out)
+{
+	static const char *identifiers[3] = { "BEA01", "NSR02", "TEA01" };
+	int i;
+	char buf[SECTOR_SIZE];
+	udf_volume_recognition_desc *vsd = (udf_volume_recognition_desc *)buf;
+
+	memset(buf, 0, sizeof (buf));
+	/*set8(&vsd->structure_type, 0);*/
+	set8(&vsd->structure_version, 1);
+	for (i = 0; i < 3; ++i) {
+		memcpy(vsd->standard_identifier, identifiers[i], 5);
+		jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+		xfwrite(buf, SECTOR_SIZE, 1, out, 0, FALSE);
+	}
+	last_extent_written += 3;
+	return (0);
+}
+
+static int
+udf_main_seq_write(FILE *out)
+{
+	Uchar buf[SECTOR_SIZE];
+	int i;
+
+	/*
+	 * volume_set_id needs to be set to a (64-bit) "unique" number.
+	 * This will have to do for now.
+	 */
+	volume_set_id[0] = begun;
+	volume_set_id[1] = (unsigned)clock();	/* XXX Maybe non-portable */
+
+	memset(buf, 0, sizeof (buf));
+	set_primary_vol_desc(buf, last_extent_written++);
+	jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+	xfwrite(buf, SECTOR_SIZE, 1, out, 0, FALSE);
+
+	memset(buf, 0, sizeof (buf));
+	set_impl_use_vol_desc(buf, last_extent_written++);
+	jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+	xfwrite(buf, SECTOR_SIZE, 1, out, 0, FALSE);
+
+	memset(buf, 0, sizeof (buf));
+	set_partition_desc(buf, last_extent_written++);
+	jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+	xfwrite(buf, SECTOR_SIZE, 1, out, 0, FALSE);
+
+	memset(buf, 0, sizeof (buf));
+	set_logical_vol_desc(buf, last_extent_written++);
+	jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+	xfwrite(buf, SECTOR_SIZE, 1, out, 0, FALSE);
+
+	memset(buf, 0, sizeof (buf));
+	set_unallocated_space_desc(buf, last_extent_written++);
+	jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+	xfwrite(buf, SECTOR_SIZE, 1, out, 0, FALSE);
+
+	memset(buf, 0, sizeof (buf));
+	set_terminating_desc(buf, last_extent_written++);
+	jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+	xfwrite(buf, SECTOR_SIZE, 1, out, 0, FALSE);
+
+	memset(buf, 0, sizeof (buf));
+	for (i = 6; i < UDF_MAIN_SEQ_LENGTH; ++i) {
+        jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+		xfwrite(buf, SECTOR_SIZE, 1, out, 0, FALSE);
+		last_extent_written++;
+	}
+
+	return (0);
+}
+
+static int
+udf_integ_seq_write(FILE *out)
+{
+	Uchar buf[SECTOR_SIZE*UDF_INTEG_SEQ_LENGTH];
+
+	memset(buf, 0, sizeof (buf));
+
+	set_logical_vol_integrity_desc(buf+0*SECTOR_SIZE,
+						last_extent_written++);
+	set_terminating_desc(buf+1*SECTOR_SIZE, last_extent_written++);
+
+	jtwrite(buf, SECTOR_SIZE, UDF_INTEG_SEQ_LENGTH, 0, FALSE);
+	xfwrite(buf, SECTOR_SIZE, UDF_INTEG_SEQ_LENGTH, out, 0, FALSE);
+	return (0);
+}
+
+static int
+udf_anchor_vol_desc_write(FILE *out)
+{
+	Uchar buf[SECTOR_SIZE];
+
+	memset(buf, 0, sizeof (buf));
+	set_anchor_volume_desc_pointer(buf, last_extent_written++);
+	jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+	xfwrite(buf, SECTOR_SIZE, 1, out, 0, FALSE);
+	return (0);
+}
+
+static int
+udf_file_set_desc_write(FILE *out)
+{
+	Uchar buf[SECTOR_SIZE*2];
+
+	memset(buf, 0, sizeof (buf));
+
+	set_file_set_desc(buf+0*SECTOR_SIZE,
+			(last_extent_written++) - lba_udf_partition_start);
+	set_terminating_desc(buf+1*SECTOR_SIZE,
+			(last_extent_written++) - lba_udf_partition_start);
+
+	jtwrite(buf, SECTOR_SIZE, 2, 0, FALSE);
+	xfwrite(buf, SECTOR_SIZE, 2, out, 0, FALSE);
+
+	return (0);
+}
+
+static int
+udf_dirtree_write(FILE *out)
+{
+	write_udf_directories(root, out);
+	return (0);
+}
+
+static int
+udf_file_entries_write(FILE *out)
+{
+	write_udf_file_entries(root, out);
+	return (0);
+}
+
+static int
+pad_to(unsigned last_extent_to_write, FILE *out)
+{
+	char buf[SECTOR_SIZE];
+	memset(buf, 0, sizeof (buf));
+	while (last_extent_written < last_extent_to_write) {
+		jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+		xfwrite(buf, SECTOR_SIZE, 1, out, 0, FALSE);
+		++last_extent_written;
+	}
+	return (0);
+}
+
+static int
+udf_pad_to_sector_32_write(FILE *out)
+{
+	return (pad_to(session_start+32, out));
+}
+
+static int
+udf_pad_to_sector_256_write(FILE *out)
+{
+	return (pad_to(session_start+256, out));
+}
+
+static int
+udf_padend_avdp_write(FILE *out)
+{
+	Uchar buf[SECTOR_SIZE];
+	unsigned last_extent_to_write = (last_extent_written+31) & ~15;
+
+	if (!use_sparcboot)
+		last_extent_to_write = last_extent_written + 150;
+
+	memset(buf, 0, sizeof (buf));
+	while (last_extent_written < last_extent_to_write) {
+		set_anchor_volume_desc_pointer(buf, last_extent_written++);
+		jtwrite(buf, SECTOR_SIZE, 1, 0, FALSE);
+		xfwrite(buf, SECTOR_SIZE, 1, out, 0, FALSE);
+	}
+	return (0);
+}
+
+
+struct output_fragment udf_vol_recognition_area_frag = { NULL, udf_vol_recognition_area_size, NULL, udf_vol_recognition_area_write, "UDF volume recognition area" };
+struct output_fragment udf_main_seq_frag = { NULL, udf_main_seq_size, NULL, udf_main_seq_write, "UDF main seq" };
+struct output_fragment udf_main_seq_copy_frag = { NULL, udf_main_seq_copy_size, NULL, udf_main_seq_write, "UDF second seq" };
+struct output_fragment udf_integ_seq_frag = { NULL, udf_integ_seq_size, NULL, udf_integ_seq_write, "UDF integ seq" };
+struct output_fragment udf_anchor_vol_desc_frag = { NULL, oneblock_size, NULL, udf_anchor_vol_desc_write, "UDF Anchor volume" };
+struct output_fragment udf_file_set_desc_frag = { NULL, udf_file_set_desc_size, NULL, udf_file_set_desc_write, "UDF file set" };
+struct output_fragment udf_dirtree_frag = { NULL, udf_dirtree_size, NULL, udf_dirtree_write, "UDF directory tree" };
+struct output_fragment udf_file_entries_frag = { NULL, udf_file_entries_size, NULL, udf_file_entries_write, "UDF file entries" };
+struct output_fragment udf_end_anchor_vol_desc_frag = { NULL, udf_end_anchor_vol_desc_size, NULL, udf_anchor_vol_desc_write, "UDF Anchor end volume" };
+
+struct output_fragment udf_pad_to_sector_32_frag = { NULL, udf_pad_to_sector_32_size, NULL, udf_pad_to_sector_32_write, "UDF pad to sector 32" };
+struct output_fragment udf_pad_to_sector_256_frag = { NULL, udf_pad_to_sector_256_size, NULL, udf_pad_to_sector_256_write, "UDF pad to sector 256" };
+struct output_fragment udf_padend_avdp_frag = { NULL, udf_padend_avdp_size, NULL, udf_padend_avdp_write, "UDF Pad end" };
+
+/*
+ * This function assigns weights as follows:
+ *
+ * /VIDEO_TS/VIDEO_TS.IFO   11199
+ * /VIDEO_TS/VIDEO_TS.VOB   11198
+ * /VIDEO_TS/VIDEO_TS.BUP   11188
+ * /VIDEO_TS/VTS_01_0.IFO   11187
+ * /VIDEO_TS/VTS_01_0.VOB   11186
+ *            :               :
+ * /VIDEO_TS/VTS_01_9.VOB   11177
+ * /VIDEO_TS/VTS_01_0.BUP   11176
+ *            :               :
+ * /VIDEO_TS/VTS_99_0.BUP   10000
+ *
+ * This ensures that DVD-Video files are laid out properly on the disc.
+ * The same thing is done for AUDIO_TS files, except in the 20000 range
+ * instead of the 10000 range.
+ *
+ * Question: what about JACKET_P files?
+ *
+ * Answer: At least as far as I know :)
+ * JACKET_P files are still images (single frame mpeg video .i.e mp2
+ * format). The DVD Jacket pictures will be displayed on the TV screen
+ * when the player is in a stop/resume mode.
+ * The location is not dependent on IFO information and the only must
+ * as far as I know is that they are in upper case (both dir and files).
+ * This sparce information makes me conclude that they don't need any
+ * weight. This obviously needs to be tested.
+ */
+int
+assign_dvd_weights(char *name, struct directory *this_dir, int val)
+{
+	int ts_number;
+	int segment;
+	int audio;
+
+	if (name[0] != 'A' && name[0] != 'V')
+		return (val);
+
+	if (memcmp(name, "VIDEO_TS", 8) == 0) {
+		ts_number = 0;
+		audio = 0;
+	} else if (memcmp(name, "VTS_", 4) == 0) {
+		ts_number = 1;
+		audio = 0;
+	} else if (memcmp(name, "AUDIO_TS", 8) == 0) {
+		ts_number = 0;
+		audio = 1;
+	} else if (memcmp(name, "ATS_", 4) == 0) {
+		ts_number = 1;
+		audio = 1;
+	} else {
+		return (val);
+	}
+
+	if (this_dir->parent != root ||
+	    strcmp(this_dir->de_name, "VIDEO_TS") != 0)
+		return (val);
+
+	if (ts_number == 0) {
+		segment = 0;
+	} else {
+		if (name[4] >= '0' && name[4] <= '9' &&
+		    name[5] >= '0' && name[5] <= '9' &&
+		    name[6] == '_' &&
+		    name[7] >= '0' && name[7] <= '9') {
+			ts_number = name[4] * 10 + name[5] - ('0' * 11);
+			segment = name[7] - '0';
+		} else {
+			return (val);
+		}
+	}
+
+	if (strcmp(name+8, audio ? ".AOB" : ".VOB") == 0) {
+		return (audio * 10000 - ts_number * 12 - segment + 11198);
+	} else if (strcmp(name+8, ".IFO") == 0) {
+		return (audio * 10000 - ts_number * 12 + 11199);
+	} else if (strcmp(name+8, ".BUP") == 0) {
+		return (audio * 10000 - ts_number * 12 + 11188);
+	} else {
+		return (val);
+	}
+}
+
+#endif  /* UDF */