Module Name:    src
Committed By:   reinoud
Date:           Mon Aug  5 14:41:57 UTC 2013

Modified Files:
        src/usr.sbin/makefs: Makefile makefs.8 makefs.c makefs.h
Added Files:
        src/usr.sbin/makefs: udf.c
        src/usr.sbin/makefs/udf: Makefile.inc

Log Message:
Implement `makefs -t udf'.

Formatting options may be enhanced to make it more in line with newfs_udf on
say labeling.


To generate a diff of this commit:
cvs rdiff -u -r1.35 -r1.36 src/usr.sbin/makefs/Makefile
cvs rdiff -u -r1.45 -r1.46 src/usr.sbin/makefs/makefs.8
cvs rdiff -u -r1.49 -r1.50 src/usr.sbin/makefs/makefs.c
cvs rdiff -u -r1.34 -r1.35 src/usr.sbin/makefs/makefs.h
cvs rdiff -u -r0 -r1.1 src/usr.sbin/makefs/udf.c
cvs rdiff -u -r0 -r1.1 src/usr.sbin/makefs/udf/Makefile.inc

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/usr.sbin/makefs/Makefile
diff -u src/usr.sbin/makefs/Makefile:1.35 src/usr.sbin/makefs/Makefile:1.36
--- src/usr.sbin/makefs/Makefile:1.35	Sun Jan 27 20:05:46 2013
+++ src/usr.sbin/makefs/Makefile	Mon Aug  5 14:41:57 2013
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.35 2013/01/27 20:05:46 christos Exp $
+#	$NetBSD: Makefile,v 1.36 2013/08/05 14:41:57 reinoud Exp $
 #
 
 WARNS?=	5
@@ -6,7 +6,7 @@ WARNS?=	5
 .include <bsd.own.mk>
 
 PROG=	makefs
-SRCS=	cd9660.c chfs.c ffs.c v7fs.c msdos.c \
+SRCS=	cd9660.c chfs.c ffs.c v7fs.c msdos.c udf.c\
 	getid.c \
 	makefs.c misc.c \
 	pack_dev.c \
@@ -26,6 +26,7 @@ CPPFLAGS+=	-I${.CURDIR} -I${MKNODSRC} -I
 .include "${.CURDIR}/ffs/Makefile.inc"
 .include "${.CURDIR}/v7fs/Makefile.inc"
 .include "${.CURDIR}/msdos/Makefile.inc"
+.include "${.CURDIR}/udf/Makefile.inc"
 
 .if !defined(HOSTPROG)
 DPADD+= ${LIBUTIL}
@@ -33,3 +34,4 @@ LDADD+= -lutil
 .endif
 
 .include <bsd.prog.mk>
+# DO NOT DELETE

Index: src/usr.sbin/makefs/makefs.8
diff -u src/usr.sbin/makefs/makefs.8:1.45 src/usr.sbin/makefs/makefs.8:1.46
--- src/usr.sbin/makefs/makefs.8:1.45	Sun Feb  3 06:16:53 2013
+++ src/usr.sbin/makefs/makefs.8	Mon Aug  5 14:41:57 2013
@@ -1,4 +1,4 @@
-.\"	$NetBSD: makefs.8,v 1.45 2013/02/03 06:16:53 christos Exp $
+.\"	$NetBSD: makefs.8,v 1.46 2013/08/05 14:41:57 reinoud Exp $
 .\"
 .\" Copyright (c) 2001-2003 Wasabi Systems, Inc.
 .\" All rights reserved.
@@ -215,6 +215,8 @@ Chip flash file system.
 FAT12, FAT16, or FAT32 file system.
 .It Sy v7fs
 7th Edition(V7) file system.
+.It Sy udf
+ISO/Ecma UDF file system.
 .El
 .It Fl x
 Exclude file system nodes not explicitly listed in the specfile.
@@ -388,6 +390,32 @@ PDP endian.
 Display a progress meter for the file system construction and file
 population.
 .El
+.Ss UDF-specific options
+.Sy udf
+images have ffs-specific optional parameters that may be provided.
+Each of the options consists of a keyword, an equal sign
+.Pq Ql = ,
+and a value.
+The following keywords are supported:
+.Pp
+.Bl -tag -width optimization -offset indent -compact
+.It Sy T
+disctype. It can have the values
+.Bl -tag -width 3n -offset indent -compact
+.It cdrom,
+.It dvdrom
+create a read-only fs
+.It dvdram,
+.It bdre,
+.It disk
+create a rewriteable fs without sparing
+.It cdr,
+.It dvdr
+create a rewritable fs on once recordable media using a VAT
+.It cdrw,
+.It dvdrw
+create a rewritable fs with sparing for defective sectors
+.It 
 .Sh SEE ALSO
 .Xr strsuftoll 3 ,
 .Xr installboot 8 ,

Index: src/usr.sbin/makefs/makefs.c
diff -u src/usr.sbin/makefs/makefs.c:1.49 src/usr.sbin/makefs/makefs.c:1.50
--- src/usr.sbin/makefs/makefs.c:1.49	Sun Feb  3 06:16:53 2013
+++ src/usr.sbin/makefs/makefs.c	Mon Aug  5 14:41:57 2013
@@ -1,4 +1,4 @@
-/*	$NetBSD: makefs.c,v 1.49 2013/02/03 06:16:53 christos Exp $	*/
+/*	$NetBSD: makefs.c,v 1.50 2013/08/05 14:41:57 reinoud Exp $	*/
 
 /*
  * Copyright (c) 2001-2003 Wasabi Systems, Inc.
@@ -41,7 +41,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__RCSID) && !defined(__lint)
-__RCSID("$NetBSD: makefs.c,v 1.49 2013/02/03 06:16:53 christos Exp $");
+__RCSID("$NetBSD: makefs.c,v 1.50 2013/08/05 14:41:57 reinoud Exp $");
 #endif	/* !__lint */
 
 #include <assert.h>
@@ -81,6 +81,7 @@ static fstype_t fstypes[] = {
 	ENTRY(chfs),
 	ENTRY(v7fs),
 	ENTRY(msdos),
+	ENTRY(udf),
 	{ .type = NULL	},
 };
 

Index: src/usr.sbin/makefs/makefs.h
diff -u src/usr.sbin/makefs/makefs.h:1.34 src/usr.sbin/makefs/makefs.h:1.35
--- src/usr.sbin/makefs/makefs.h:1.34	Sun Feb  3 06:16:53 2013
+++ src/usr.sbin/makefs/makefs.h	Mon Aug  5 14:41:57 2013
@@ -1,4 +1,4 @@
-/*	$NetBSD: makefs.h,v 1.34 2013/02/03 06:16:53 christos Exp $	*/
+/*	$NetBSD: makefs.h,v 1.35 2013/08/05 14:41:57 reinoud Exp $	*/
 
 /*
  * Copyright (c) 2001 Wasabi Systems, Inc.
@@ -92,6 +92,7 @@ typedef struct {
 	uint32_t	 nlink;		/* number of links to this entry */
 	enum fi_flags	 flags;		/* flags used by fs specific code */
 	struct stat	 st;		/* stat entry */
+	void		*fsuse;		/* for storing FS dependent info */
 } fsinode;
 
 typedef struct _fsnode {
@@ -194,6 +195,7 @@ DECLARE_FUN(cd9660);
 DECLARE_FUN(chfs);
 DECLARE_FUN(v7fs);
 DECLARE_FUN(msdos);
+DECLARE_FUN(udf);
 
 extern	u_int		debug;
 extern	struct timespec	start_time;

Added files:

Index: src/usr.sbin/makefs/udf.c
diff -u /dev/null src/usr.sbin/makefs/udf.c:1.1
--- /dev/null	Mon Aug  5 14:41:57 2013
+++ src/usr.sbin/makefs/udf.c	Mon Aug  5 14:41:57 2013
@@ -0,0 +1,1252 @@
+/* $NetBSD: udf.c,v 1.1 2013/08/05 14:41:57 reinoud Exp $ */
+
+/*
+ * Copyright (c) 2006, 2008, 2013 Reinoud Zandijk
+ * 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 ``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 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 <sys/cdefs.h>
+#ifndef lint
+__RCSID("$NetBSD: udf.c,v 1.1 2013/08/05 14:41:57 reinoud Exp $");
+#endif /* not lint */
+
+#define _EXPOSE_MMC
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <time.h>
+#include <assert.h>
+#include <err.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/cdio.h>
+#include <sys/stat.h>
+#include <util.h>
+
+#include "makefs.h"
+#include "udf_create.h"
+#include "udf_write.h"
+#include "newfs_udf.h"
+
+
+/*
+ * Note: due to the setup of the newfs code, the current state of the program
+ * and its options are helt in a few global variables. The FS specific parts
+ * are in a global `context' structure.
+ */
+
+/* global variables describing disc and format requests */
+int	 fd;				/* device: file descriptor */
+char	*dev;				/* device: name		   */
+struct mmc_discinfo mmc_discinfo;	/* device: disc info	   */
+
+char	*format_str;			/* format: string representation */
+int	 format_flags;			/* format: attribute flags	 */
+int	 media_accesstype;		/* derived from current mmc cap  */
+int	 check_surface;			/* for rewritables               */
+int	 imagefile_secsize;		/* for files			 */
+
+int	 display_progressbar;
+
+int	 wrtrack_skew;
+float	 meta_fract = (float) UDF_META_PERC / 100.0;
+
+int	 mmc_profile;			/* emulated profile */
+int	 req_enable, req_disable;
+
+
+/* --------------------------------------------------------------------- */
+
+int
+udf_write_sector(void *sector, uint32_t location)
+{
+	uint64_t wpos;
+	ssize_t ret;
+
+	wpos = (uint64_t) location * context.sector_size;
+	ret = pwrite(fd, sector, context.sector_size, wpos);
+	if (ret == -1)
+		return errno;
+	if (ret < context.sector_size)
+		return EIO;
+	return 0;
+}
+
+
+/* not implemented for files */
+int
+udf_surface_check(void)
+{
+	return 0;
+}
+
+
+/*
+ * mmc_discinfo and mmc_trackinfo readers modified from origional in udf main
+ * code in sys/fs/udf/
+ */
+
+#ifdef DEBUG
+static void
+udf_dump_discinfo(struct mmc_discinfo *di)
+{
+	char bits[128];
+
+	printf("Device/media info  :\n");
+	printf("\tMMC profile        0x%02x\n", di->mmc_profile);
+	printf("\tderived class      %d\n", di->mmc_class);
+	printf("\tsector size        %d\n", di->sector_size);
+	printf("\tdisc state         %d\n", di->disc_state);
+	printf("\tlast ses state     %d\n", di->last_session_state);
+	printf("\tbg format state    %d\n", di->bg_format_state);
+	printf("\tfrst track         %d\n", di->first_track);
+	printf("\tfst on last ses    %d\n", di->first_track_last_session);
+	printf("\tlst on last ses    %d\n", di->last_track_last_session);
+	printf("\tlink block penalty %d\n", di->link_block_penalty);
+	snprintb(bits, sizeof(bits), MMC_DFLAGS_FLAGBITS, (uint64_t) di->disc_flags);
+	printf("\tdisc flags         %s\n", bits);
+	printf("\tdisc id            %x\n", di->disc_id);
+	printf("\tdisc barcode       %"PRIx64"\n", di->disc_barcode);
+
+	printf("\tnum sessions       %d\n", di->num_sessions);
+	printf("\tnum tracks         %d\n", di->num_tracks);
+
+	snprintb(bits, sizeof(bits), MMC_CAP_FLAGBITS, di->mmc_cur);
+	printf("\tcapabilities cur   %s\n", bits);
+	snprintb(bits, sizeof(bits), MMC_CAP_FLAGBITS, di->mmc_cap);
+	printf("\tcapabilities cap   %s\n", bits);
+	printf("\n");
+	printf("\tlast_possible_lba  %d\n", di->last_possible_lba);
+	printf("\n");
+}
+#else
+#define udf_dump_discinfo(a);
+#endif
+
+/* --------------------------------------------------------------------- */
+
+static int
+udf_emulate_discinfo(fsinfo_t *fsopts, struct mmc_discinfo *di,
+		int mmc_emuprofile)
+{
+	off_t sectors;
+
+	memset(di, 0, sizeof(struct mmc_discinfo));
+
+	/* file support */
+	if ((mmc_emuprofile != 0x01) && (fsopts->sectorsize != 2048))
+		warnx("cd/dvd/bd sectorsize is not set to default 2048");
+
+	sectors = fsopts->size / fsopts->sectorsize;
+
+	/* commons */
+	di->mmc_profile		= mmc_emuprofile;
+	di->disc_state		= MMC_STATE_CLOSED;
+	di->last_session_state	= MMC_STATE_CLOSED;
+	di->bg_format_state	= MMC_BGFSTATE_COMPLETED;
+	di->link_block_penalty	= 0;
+
+	di->disc_flags = MMC_DFLAGS_UNRESTRICTED;
+
+	di->last_possible_lba = sectors - 1;
+	di->sector_size       = fsopts->sectorsize;
+
+	di->num_sessions = 1;
+	di->num_tracks   = 1;
+
+	di->first_track  = 1;
+	di->first_track_last_session = di->last_track_last_session = 1;
+
+	di->mmc_cur = MMC_CAP_RECORDABLE | MMC_CAP_ZEROLINKBLK;
+	switch (mmc_emuprofile) {
+	case 0x00:	/* unknown, treat as CDROM */
+	case 0x08:	/* CDROM */
+	case 0x10:	/* DVD-ROM */
+		req_enable |= FORMAT_READONLY;
+		/* FALLTROUGH */
+	case 0x01:	/* disc */
+		/* set up a disc info profile for partitions/files */
+		di->mmc_class	= MMC_CLASS_DISC;
+		di->mmc_cur    |= MMC_CAP_REWRITABLE | MMC_CAP_HW_DEFECTFREE;
+		break;
+	case 0x09:	/* CD-R */
+		di->mmc_class	= MMC_CLASS_CD;
+		di->mmc_cur    |= MMC_CAP_SEQUENTIAL;
+		di->disc_state  = MMC_STATE_EMPTY;
+		break;
+	case 0x0a:	/* CD-RW + CD-MRW (regretably) */
+		di->mmc_class	= MMC_CLASS_CD;
+		di->mmc_cur    |= MMC_CAP_REWRITABLE;
+		break;
+	case 0x13:	/* DVD-RW */
+		di->mmc_class	= MMC_CLASS_DVD;
+		di->mmc_cur    |= MMC_CAP_REWRITABLE;
+		break;
+	case 0x11:	/* DVD-R */
+	case 0x14:	/* DVD-RW sequential */
+	case 0x1b:	/* DVD+R */
+	case 0x2b:	/* DVD+R DL */
+	case 0x51:	/* HD DVD-R */
+		di->mmc_class	= MMC_CLASS_DVD;
+		di->mmc_cur    |= MMC_CAP_SEQUENTIAL;
+		di->disc_state  = MMC_STATE_EMPTY;
+		break;
+	case 0x41:	/* BD-R */
+		di->mmc_class   = MMC_CLASS_BD;
+		di->mmc_cur    |= MMC_CAP_SEQUENTIAL | MMC_CAP_HW_DEFECTFREE;
+		di->disc_state  = MMC_STATE_EMPTY;
+		break;
+	case 0x43:	/* BD-RE */
+		di->mmc_class   = MMC_CLASS_BD;
+		di->mmc_cur    |= MMC_CAP_REWRITABLE | MMC_CAP_HW_DEFECTFREE;
+		break;
+	default:
+		err(EINVAL, "makefs_udf: unknown or unimplemented device type");
+		return EINVAL;
+	}
+	di->mmc_cap    = di->mmc_cur;
+
+	udf_dump_discinfo(di);
+	return 0;
+}
+
+
+int
+udf_update_trackinfo(struct mmc_discinfo *di, struct mmc_trackinfo *ti)
+{
+	/* discs partition support */
+	if (ti->tracknr != 1)
+		return EIO;
+
+	/* create fake ti */
+	ti->sessionnr  = 1;
+
+	ti->track_mode = 0;	/* XXX */
+	ti->data_mode  = 0;	/* XXX */
+	ti->flags = MMC_TRACKINFO_LRA_VALID | MMC_TRACKINFO_NWA_VALID;
+
+	ti->track_start    = 0;
+	ti->packet_size    = 32;	/* take sensible default */
+
+	ti->track_size    = di->last_possible_lba;
+	ti->next_writable = di->last_possible_lba;
+	ti->last_recorded = ti->next_writable;
+	ti->free_blocks   = 0;
+
+	return 0;
+}
+
+
+#define OPT_STR(letter, name, desc)  \
+	{ letter, name, NULL, OPT_STRBUF, 0, 0, desc }
+
+#define OPT_NUM(letter, name, field, min, max, desc) \
+	{ letter, name, &diskStructure->field, \
+	  sizeof(diskStructure->field) == 8 ? OPT_INT64 : \
+	  (sizeof(diskStructure->field) == 4 ? OPT_INT32 : \
+	  (sizeof(diskStructure->field) == 2 ? OPT_INT16 : OPT_INT8)), \
+	  min, max, desc }
+
+#define OPT_BOOL(letter, name, field, desc) \
+	OPT_NUM(letter, name, field, 0, 1, desc)
+
+void
+udf_prep_opts(fsinfo_t *fsopts)
+{
+	struct tm *tm;
+	time_t now;
+
+	const option_t udf_options[] = {
+		OPT_STR('T', "disctype", "disc type (cdrom,dvdrom,dvdram,bdre,disk,cdr,dvdr,cdrw,dvdrw)"),
+//		{ 'P', "progress", &display_progressbar, OPT_INT32, false, true,
+//		  "display progress bar" },
+		{ .name = NULL }
+	};
+
+	/* initialise */
+	format_str    = strdup("");
+	req_enable    = req_disable = 0;
+	format_flags  = FORMAT_INVALID;
+	fsopts->sectorsize = 512;	/* minimum allowed sector size */
+
+	srandom((unsigned long) time(NULL));
+
+	mmc_profile = 0x01;		/* 'disc'/file */
+
+	udf_init_create_context();
+	context.app_name  = APP_NAME;
+	context.impl_name = IMPL_NAME;
+	context.app_version_main = APP_VERSION_MAIN;
+	context.app_version_sub  = APP_VERSION_SUB;
+
+	/* minimum and maximum UDF versions we advise */
+	context.min_udf = 0x102;
+	context.max_udf = 0x201;
+
+	/* use user's time zone as default */
+	(void)time(&now);
+	tm = localtime(&now);
+	context.gmtoff = tm->tm_gmtoff;
+
+	/* return info */
+	fsopts->fs_specific = NULL;
+	fsopts->fs_options = copy_opts(udf_options);
+}
+
+
+void
+udf_cleanup_opts(fsinfo_t *fsopts)
+{
+	free(fsopts->fs_options);
+}
+
+
+int
+udf_parse_opts(const char *option, fsinfo_t *fsopts)
+{
+	option_t *udf_options = fsopts->fs_options;
+	const char *name, *desc;
+	char buf[1024];
+	int i;
+
+	assert(option != NULL);
+
+	if (debug & DEBUG_FS_PARSE_OPTS)
+		printf("udf_parse_opts: got `%s'\n", option);
+
+	i = set_option(udf_options, option, buf, sizeof(buf));
+	if (i == -1)
+		return 0;
+
+	if (udf_options[i].name == NULL)
+		abort();
+
+	name = udf_options[i].name;
+	desc = udf_options[i].desc;
+	switch (udf_options[i].letter) {
+	case 'T':
+		if (strcmp(buf, "cdrom") == 0) {
+			mmc_profile = 0x00;
+		} else if (strcmp(buf, "dvdrom") == 0) {
+			mmc_profile = 0x10;
+		} else if (strcmp(buf, "dvdram") == 0) {
+			mmc_profile = 0x12;
+		} else if (strcmp(buf, "bdre") == 0) {
+			mmc_profile = 0x43;
+		} else if (strcmp(buf, "disk") == 0) {
+			mmc_profile = 0x01;
+		} else if (strcmp(buf, "cdr") == 0) {
+			mmc_profile = 0x09;
+		} else if (strcmp(buf, "dvdr") == 0) {
+			mmc_profile = 0x1b;
+		} else if (strcmp(buf, "cdrw") == 0) {
+			mmc_profile = 0x0a;
+		} else if (strcmp(buf, "dvdrw") == 0) {
+			mmc_profile = 0x13;
+		} else {
+			errx(EINVAL, "Unknown or unimplemented disc format");
+			return 0;
+		}
+	}
+	return 1;
+}
+
+/* --------------------------------------------------------------------- */
+
+struct udf_stats {
+	uint32_t nfiles;
+	uint32_t ndirs;
+	uint32_t ndescr;
+	uint32_t nmetadatablocks;
+	uint32_t ndatablocks;
+};
+
+
+/* node reference administration */
+static void
+udf_inc_link(union dscrptr *dscr)
+{
+	struct file_entry *fe;
+	struct extfile_entry *efe;
+
+	if (udf_rw16(dscr->tag.id) == TAGID_FENTRY) {
+		fe        = &dscr->fe;
+		fe->link_cnt = udf_rw16(udf_rw16(fe->link_cnt) + 1);
+	} else if (udf_rw16(dscr->tag.id) == TAGID_EXTFENTRY) {
+		efe       = &dscr->efe;
+		efe->link_cnt = udf_rw16(udf_rw16(efe->link_cnt) + 1);
+	} else {
+		errx(1, "Bad tag passed to udf_inc_link");
+	}
+}
+
+
+static void
+udf_set_link_cnt(union dscrptr *dscr, int num)
+{
+	struct file_entry *fe;
+	struct extfile_entry *efe;
+
+	if (udf_rw16(dscr->tag.id) == TAGID_FENTRY) {
+		fe        = &dscr->fe;
+		fe->link_cnt = udf_rw16(num);
+	} else if (udf_rw16(dscr->tag.id) == TAGID_EXTFENTRY) {
+		efe       = &dscr->efe;
+		efe->link_cnt = udf_rw16(num);
+	} else {
+		errx(1, "Bad tag passed to udf_set_link_cnt");
+	}
+}
+
+
+static uint32_t
+udf_datablocks(off_t sz)
+{
+	/* predictor if it can be written inside the node */
+	if (sz < context.sector_size - UDF_EXTFENTRY_SIZE - 16)
+		return 0;
+
+	return UDF_ROUNDUP(sz, context.sector_size) / context.sector_size;
+}
+
+
+static void
+udf_prepare_fids(struct long_ad *dir_icb, struct long_ad *dirdata_icb,
+		uint8_t *dirdata, uint32_t dirdata_size)
+{
+	struct fileid_desc *fid;
+	struct long_ad     *icb;
+	uint32_t fidsize, offset;
+	uint32_t location;
+
+	if (udf_datablocks(dirdata_size) == 0) {
+		/* going internal */
+		icb = dir_icb;
+	} else {
+		/* external blocks to write to */
+		icb = dirdata_icb;
+	}
+
+	for (offset = 0; offset < dirdata_size; offset += fidsize) {
+		/* for each FID: */
+		fid = (struct fileid_desc *) (dirdata + offset);
+		assert(udf_rw16(fid->tag.id) == TAGID_FID);
+
+		location  = udf_rw32(icb->loc.lb_num);
+		location += offset / context.sector_size;
+
+		fid->tag.tag_loc = udf_rw32(location);
+		udf_validate_tag_and_crc_sums((union dscrptr *) fid);
+
+		fidsize = udf_fidsize(fid);
+	}
+}
+
+static int
+udf_file_inject_blob(union dscrptr *dscr,  uint8_t *blob, size_t size)
+{
+	struct icb_tag *icb;
+	struct file_entry *fe;
+	struct extfile_entry *efe;
+	uint64_t inf_len, obj_size;
+	uint32_t l_ea, l_ad;
+	uint32_t free_space, desc_size;
+	uint16_t crclen;
+	uint8_t *data, *pos;
+
+	fe = NULL;
+	efe = NULL;
+	if (udf_rw16(dscr->tag.id) == TAGID_FENTRY) {
+		fe        = &dscr->fe;
+		data      = fe->data;
+		l_ea      = udf_rw32(fe->l_ea);
+		l_ad      = udf_rw32(fe->l_ad);
+		icb       = &fe->icbtag;
+		inf_len   = udf_rw64(fe->inf_len);
+		obj_size  = 0;
+		desc_size = sizeof(struct file_entry);
+	} else if (udf_rw16(dscr->tag.id) == TAGID_EXTFENTRY) {
+		efe       = &dscr->efe;
+		data      = efe->data;
+		l_ea      = udf_rw32(efe->l_ea);
+		l_ad      = udf_rw32(efe->l_ad);
+		icb       = &efe->icbtag;
+		inf_len   = udf_rw64(efe->inf_len);
+		obj_size  = udf_rw64(efe->obj_size);
+		desc_size = sizeof(struct extfile_entry);
+	} else {
+		errx(1, "Bad tag passed to udf_file_inject_blob");
+	}
+	crclen = udf_rw16(dscr->tag.desc_crc_len);
+
+	/* calculate free space */
+	free_space = context.sector_size - (l_ea + l_ad) - desc_size;
+	if (udf_datablocks(size)) {
+		assert(free_space < size);
+		return 1;
+	}
+
+	/* going internal */
+	assert(l_ad == 0);
+	assert(udf_rw16(icb->flags) == UDF_ICB_INTERN_ALLOC);
+
+	// assert(free_space >= size);
+	pos = data + l_ea + l_ad;
+	memcpy(pos, blob, size);
+	l_ad   += size;
+	crclen += size;
+
+	inf_len  += size;
+	obj_size += size;
+
+	if (fe) {
+		fe->l_ad = udf_rw32(l_ad);
+		fe->inf_len = udf_rw64(inf_len);
+	} else if (efe) {
+		efe->l_ad = udf_rw32(l_ad);
+		efe->inf_len  = udf_rw64(inf_len);
+		efe->obj_size = udf_rw64(inf_len);
+	}
+
+	/* make sure the header sums stays correct */
+	dscr->tag.desc_crc_len = udf_rw16(crclen);
+	udf_validate_tag_and_crc_sums(dscr);
+
+	return 0;
+}
+
+
+/* XXX no sparse file support */
+static void
+udf_append_file_mapping(union dscrptr *dscr, struct long_ad *piece)
+{
+	struct icb_tag *icb;
+	struct file_entry *fe;
+	struct extfile_entry *efe;
+	struct long_ad *last_long, last_piece;
+	struct short_ad *last_short, new_short;
+	uint64_t inf_len, obj_size, logblks_rec;
+	uint32_t l_ea, l_ad, size;
+	uint32_t last_lb_num, piece_lb_num;
+	uint32_t last_len, piece_len, last_flags;
+	uint32_t rest_len, merge_len, last_end;
+	uint16_t last_part_num, piece_part_num;
+	uint16_t crclen, cur_alloc;
+	uint8_t *data, *pos;
+	const int short_len = sizeof(struct short_ad);
+	const int long_len  = sizeof(struct long_ad);
+	const int sector_size = context.sector_size;
+	const int use_shorts = (context.data_part == context.metadata_part);
+	uint64_t max_len = UDF_ROUNDDOWN(UDF_EXT_MAXLEN, sector_size);
+
+	if (udf_rw16(dscr->tag.id) == TAGID_FENTRY) {
+		fe          = &dscr->fe;
+		data        =    fe->data;
+		l_ea        = fe->l_ea;
+		l_ad        = udf_rw32(fe->l_ad);
+		icb         = &fe->icbtag;
+		inf_len     = udf_rw64(fe->inf_len);
+		logblks_rec = udf_rw64(fe->logblks_rec);
+		obj_size = 0;
+	} else if (udf_rw16(dscr->tag.id) == TAGID_EXTFENTRY) {
+		efe         = &dscr->efe;
+		data        = efe->data;
+		l_ea        = efe->l_ea;
+		l_ad        = udf_rw32(efe->l_ad);
+		icb         = &efe->icbtag;
+		inf_len     = udf_rw64(efe->inf_len);
+		obj_size    = udf_rw64(efe->obj_size);
+		logblks_rec = udf_rw64(efe->logblks_rec);
+	} else {
+		errx(1, "Bad tag passed to udf_file_append_blob");
+	}
+	crclen = udf_rw16(dscr->tag.desc_crc_len);
+
+	pos = data + l_ea;
+	cur_alloc = udf_rw16(icb->flags);
+	size = UDF_EXT_LEN(udf_rw32(piece->len));
+
+	/* extract last entry as a long_ad */
+	memset(&last_piece, 0, sizeof(struct long_ad));
+	if (l_ad != 0) {
+		if (use_shorts) {
+			assert(cur_alloc == UDF_ICB_SHORT_ALLOC);
+			pos += l_ad - short_len;
+			last_short   = (struct short_ad *) pos;
+			last_lb_num  = udf_rw32(last_short->lb_num);
+			last_part_num = udf_rw16(piece->loc.part_num);
+			last_len     = UDF_EXT_LEN(udf_rw32(last_short->len));
+			last_flags   = UDF_EXT_FLAGS(udf_rw32(last_short->len));
+		} else {
+			assert(cur_alloc == UDF_ICB_LONG_ALLOC);
+			pos += l_ad - long_len;
+			last_long    = (struct long_ad *) pos;
+			last_lb_num  = udf_rw32(last_long->loc.lb_num);
+			last_part_num = udf_rw16(last_long->loc.part_num);
+			last_len     = UDF_EXT_LEN(udf_rw32(last_long->len));
+			last_flags   = UDF_EXT_FLAGS(udf_rw32(last_long->len));
+		}
+	}
+
+	piece_len      = UDF_EXT_LEN(udf_rw32(piece->len));
+	piece_lb_num   = udf_rw32(piece->loc.lb_num);
+	piece_part_num = udf_rw16(piece->loc.part_num);
+
+	/* try merging */
+	rest_len  = max_len - last_len;
+
+	merge_len = MIN(udf_rw32(piece->len), rest_len);
+	last_end  = last_lb_num + (last_len / sector_size);
+
+	if ((piece_lb_num == last_end) && (last_part_num == piece_part_num)) {
+		/* we can merge */
+		last_len  += merge_len;
+		piece_len -= merge_len;
+
+		/* write back merge result */
+		if (use_shorts) {
+			last_short->len = udf_rw32(last_len | last_flags);
+		} else {
+			last_long->len  = udf_rw32(last_len | last_flags);
+		}
+		piece_lb_num += merge_len / sector_size;
+	}
+
+	if (piece_len) {
+		/* append new entry */
+		pos = data + l_ea + l_ad;
+		if (use_shorts) {
+			icb->flags = udf_rw16(UDF_ICB_SHORT_ALLOC);
+			memset(&new_short, 0, short_len);
+			new_short.len    = udf_rw32(piece_len);
+			new_short.lb_num = udf_rw32(piece_lb_num);
+			memcpy(pos, &new_short, short_len);
+			l_ad += short_len;
+			crclen += short_len;
+		} else {
+			icb->flags = udf_rw16(UDF_ICB_LONG_ALLOC);
+			piece->len        = udf_rw32(piece_len);
+			piece->loc.lb_num = udf_rw32(piece_lb_num);
+			memcpy(pos, piece, long_len);
+			l_ad += long_len;
+			crclen += long_len;
+		}
+	}
+	piece->len = udf_rw32(0);
+
+	inf_len  += size;
+	obj_size += size;
+	logblks_rec += UDF_ROUNDUP(size, sector_size) / sector_size;
+
+	dscr->tag.desc_crc_len = udf_rw16(crclen);
+	if (udf_rw16(dscr->tag.id) == TAGID_FENTRY) {
+		fe->l_ad = udf_rw32(l_ad);
+		fe->inf_len = udf_rw64(inf_len);
+		fe->logblks_rec = udf_rw64(logblks_rec);
+	} else if (udf_rw16(dscr->tag.id) == TAGID_EXTFENTRY) {
+		efe->l_ad = udf_rw32(l_ad);
+		efe->inf_len  = udf_rw64(inf_len);
+		efe->obj_size = udf_rw64(inf_len);
+		efe->logblks_rec = udf_rw64(logblks_rec);
+	}
+}
+
+
+static int
+udf_append_file_contents(union dscrptr *dscr, struct long_ad *data_icb,
+		uint8_t *fdata, size_t flen)
+{
+	struct long_ad icb;
+	uint32_t location;
+	uint32_t phys;
+	uint16_t vpart;
+	uint8_t *bpos;
+	int cnt, sects;
+	int error;
+
+	if (udf_file_inject_blob(dscr, fdata, flen) == 0)
+		return 0;
+
+	/* has to be appended in mappings */
+	icb = *data_icb;
+	icb.len = udf_rw32(flen);
+	while (udf_rw32(icb.len) > 0)
+		udf_append_file_mapping(dscr, &icb);
+	udf_validate_tag_and_crc_sums(dscr);
+
+	/* write out data piece */
+	vpart    = udf_rw16(data_icb->loc.part_num);
+	location = udf_rw32(data_icb->loc.lb_num);
+	sects    = udf_datablocks(flen);
+	for (cnt = 0; cnt < sects; cnt++) {
+		bpos = fdata + cnt*context.sector_size;
+		phys = context.vtop_offset[vpart] + location + cnt;
+		error = udf_write_sector(bpos, phys);
+		if (error)
+			return error;
+	}
+	return 0;
+}
+
+
+static int
+udf_create_new_file(struct stat *st, union dscrptr **dscr,
+	int filetype, struct long_ad *icb)
+{
+	struct file_entry *fe;
+	struct extfile_entry *efe;
+	int error;
+
+	fe = NULL;
+	efe = NULL;
+	if (context.dscrver == 2) {
+		error = udf_create_new_fe(&fe, filetype, st);
+		if (error)
+			errx(error, "can't create fe");
+		*dscr = (union dscrptr *) fe;
+		icb->longad_uniqueid = fe->unique_id;
+	} else {
+		error = udf_create_new_efe(&efe, filetype, st);
+		if (error)
+			errx(error, "can't create fe");
+		*dscr = (union dscrptr *) efe;
+		icb->longad_uniqueid = efe->unique_id;
+	}
+
+	return 0;
+}
+
+
+static void
+udf_estimate_walk(fsinfo_t *fsopts,
+		fsnode *root, char *dir, struct udf_stats *stats)
+{
+	struct fileid_desc *fid;
+	struct long_ad dummy_ref;
+	fsnode *cur;
+	fsinode *fnode;
+	size_t pathlen = strlen(dir);
+	char *mydir = dir + pathlen;
+	off_t sz;
+	uint32_t nblk, ddoff;
+	uint32_t softlink_len;
+	uint8_t *softlink_buf;
+	int nentries;
+	int error;
+
+	stats->ndirs++;
+
+	/*
+	 * Count number of directory entries and count directory size; needed
+	 * for the reservation of enough space for the directory. Pity we
+	 * don't keep the FIDs we created. If it turns out to be a issue we
+	 * can cache it later.
+	 */
+	fid = (struct fileid_desc *) malloc(context.sector_size);
+	assert(fid);
+
+	ddoff = 40;	/* '..' entry */
+	for (cur = root, nentries = 0; cur != NULL; cur = cur->next) {
+		switch (cur->type & S_IFMT) {
+		default:
+			/* what kind of nodes? */
+			break;
+		case S_IFCHR:
+		case S_IFBLK:
+			/* not supported yet */
+			continue;
+		case S_IFDIR:
+			if (strcmp(cur->name, ".") == 0)
+				continue;
+		case S_IFLNK:
+		case S_IFREG:
+			/* create dummy FID to see how long name will become */
+			udf_create_fid(ddoff, fid, cur->name, 0, &dummy_ref);
+
+			nentries++;
+			ddoff += udf_fidsize(fid);
+		}
+	}
+	sz = ddoff;
+
+	root->inode->st.st_size = sz;	/* max now */
+	root->inode->flags |= FI_SIZED;
+
+	nblk = udf_datablocks(sz);
+	stats->nmetadatablocks += nblk;
+
+	/* for each entry in the directory, there needs to be a (E)FE */
+	stats->nmetadatablocks += nentries + 1;
+
+	/* recurse */
+	for (cur = root; cur != NULL; cur = cur->next) {
+		switch (cur->type & S_IFMT) {
+		default:
+			/* what kind of nodes? */
+			break;
+		case S_IFCHR:
+		case S_IFBLK:
+			/* not supported yet */
+			// stats->nfiles++;
+			break;
+		case S_IFDIR:
+			if (strcmp(cur->name, ".") == 0)
+				continue;
+			/* empty dir? */
+			if (!cur->child)
+				break;
+			mydir[0] = '/';
+			strncpy(&mydir[1], cur->name, MAXPATHLEN - pathlen);
+			udf_estimate_walk(fsopts, cur->child, dir, stats);
+			mydir[0] = '\0';
+			break;
+		case S_IFREG:
+			fnode = cur->inode;
+			/* don't double-count hard-links */
+			if (!(fnode->flags & FI_SIZED)) {
+				sz = fnode->st.st_size;
+				nblk = udf_datablocks(sz);
+				stats->ndatablocks += nblk;
+				/* ... */
+				fnode->flags |= FI_SIZED;
+			}
+			stats->nfiles++;
+			break;
+		case S_IFLNK:
+			/* softlink */
+			fnode = cur->inode;
+			/* don't double-count hard-links */
+			if (!(fnode->flags & FI_SIZED)) {
+				error = udf_encode_symlink(&softlink_buf,
+						&softlink_len, cur->symlink);
+				if (error) {
+					printf("SOFTLINK error %d\n", error);
+					break;
+				}
+				nblk = udf_datablocks(softlink_len);
+				stats->ndatablocks += nblk;
+				fnode->flags |= FI_SIZED;
+
+				free(softlink_buf);
+			}
+			stats->nfiles++;
+			break;
+		}
+	}
+}
+
+
+#define UDF_MAX_CHUNK_SIZE (4*1024*1024)
+static int
+udf_copy_file(struct stat *st, char *path, fsnode *cur, struct fileid_desc *fid,
+	struct long_ad *icb)
+{
+	union dscrptr *dscr;
+	struct long_ad data_icb;
+	fsinode *fnode;
+	size_t sz, chunk, rd;
+	uint8_t *data;
+	int nblk;
+	int i, f;
+
+	fnode = cur->inode;
+
+	f = open(path, O_RDONLY, 0, 0);
+	if (f < 0) {
+		warn("Can't open file %s for reading", cur->name);
+		return errno;
+	}
+
+	/* claim disc space for the (e)fe descriptor for this file */
+	udf_metadata_alloc(1, icb);
+	udf_create_new_file(st, &dscr, UDF_ICB_FILETYPE_RANDOMACCESS, icb);
+
+	sz = fnode->st.st_size;
+
+	chunk = MIN(sz, UDF_MAX_CHUNK_SIZE);
+	data = malloc(MAX(chunk, context.sector_size));
+	assert(data);
+
+	printf("  ");
+	i = 0;
+	while (chunk) {
+		rd = read(f, data, chunk);
+		if (rd != chunk) {
+			warn("Short read of file %s\n", cur->name);
+			close(f);
+			free(data);
+			return errno;
+		}
+		printf("\b%c", "\\|/-"[i++ % 4]); fflush(stdout);fflush(stderr);
+
+		nblk = udf_datablocks(chunk);
+		if (nblk > 0)
+			udf_data_alloc(nblk, &data_icb);
+		udf_append_file_contents(dscr, &data_icb, data, chunk);
+
+		sz -= chunk;
+		chunk = MIN(sz, UDF_MAX_CHUNK_SIZE);
+	}
+	printf("\b \n");
+	close(f);
+	free(data);
+
+	/* write out dscr (e)fe */
+	udf_set_link_cnt(dscr, fnode->nlink);
+	udf_write_dscr_virt(dscr, udf_rw32(icb->loc.lb_num),
+		udf_rw16(icb->loc.part_num), 1);
+
+	/* remember our location for hardlinks */
+	cur->inode->fsuse = malloc(sizeof(struct long_ad));
+	memcpy(cur->inode->fsuse, icb, sizeof(struct long_ad));
+
+	return 0;
+}
+
+
+static int
+udf_populate_walk(fsinfo_t *fsopts, fsnode *root, char *dir,
+		struct long_ad *parent_icb, struct long_ad *dir_icb)
+{
+	union dscrptr *dir_dscr, *dscr;
+	struct fileid_desc *fid;
+	struct long_ad icb, data_icb, dirdata_icb;
+	fsnode *cur;
+	fsinode *fnode;
+	size_t pathlen = strlen(dir);
+	size_t dirlen;
+	char *mydir = dir + pathlen;
+	uint32_t nblk, ddoff;
+	uint32_t softlink_len;
+	uint8_t *softlink_buf;
+	uint8_t *dirdata;
+	int error, ret, retval;
+
+	/* claim disc space for the (e)fe descriptor for this dir */
+	udf_metadata_alloc(1, dir_icb);
+
+	/* create new e(fe) */
+	udf_create_new_file(&root->inode->st, &dir_dscr,
+		UDF_ICB_FILETYPE_DIRECTORY, dir_icb);
+
+	/* claim space for the directory contents */
+	dirlen = root->inode->st.st_size;
+	nblk = udf_datablocks(dirlen);
+	if (nblk > 0) {
+		/* claim disc space for the dir contents */
+		udf_data_alloc(nblk, &dirdata_icb);
+	}
+
+	/* allocate memory for the directory contents */
+	nblk++;
+	dirdata = malloc(nblk * context.sector_size);
+	assert(dirdata);
+	memset(dirdata, 0, nblk * context.sector_size);
+
+	/* create and append '..' */
+	fid = (struct fileid_desc *) dirdata;
+	ddoff = udf_create_parentfid(fid, parent_icb);
+
+	/* for '..' */
+	udf_inc_link(dir_dscr);
+
+	/* recurse */
+	retval = 0;
+	for (cur = root; cur != NULL; cur = cur->next) {
+		mydir[0] = '/';
+		strncpy(&mydir[1], cur->name, MAXPATHLEN - pathlen);
+
+		fid = (struct fileid_desc *) (dirdata + ddoff);
+		switch (cur->type & S_IFMT) {
+		default:
+			/* what kind of nodes? */
+			retval = 2;
+			break;
+		case S_IFCHR:
+		case S_IFBLK:
+			/* not supported */
+			retval = 2;
+			warnx("device node %s not supported", dir);
+			break;
+		case S_IFDIR:
+			/* not an empty dir? */
+			if (strcmp(cur->name, ".") == 0)
+				break;
+			assert(cur->child);
+			if (cur->child) {
+				ret = udf_populate_walk(fsopts, cur->child,
+					dir, dir_icb, &icb);
+				if (ret)
+					retval = 2;
+			}
+			udf_create_fid(ddoff, fid, cur->name,
+					UDF_FILE_CHAR_DIR, &icb);
+			udf_inc_link(dir_dscr);
+			ddoff += udf_fidsize(fid);
+			break;
+		case S_IFREG:
+			fnode = cur->inode;
+			/* don't re-copy hard-links */
+			if (!(fnode->flags & FI_WRITTEN)) {
+				printf("%s", dir);
+				error = udf_copy_file(&fnode->st, dir, cur,
+					fid, &icb);
+				if (!error) {
+					fnode->flags |= FI_WRITTEN;
+					udf_create_fid(ddoff, fid, cur->name,
+						0, &icb);
+					ddoff += udf_fidsize(fid);
+				} else {
+					retval = 2;
+				}
+			} else {
+				/* hardlink! */
+				printf("%s (hardlink)\n", dir);
+				udf_create_fid(ddoff, fid, cur->name,
+					0, (struct long_ad *) (fnode->fsuse));
+				ddoff += udf_fidsize(fid);
+			}
+			fnode->nlink--;
+			if (fnode->nlink == 0)
+				free(fnode->fsuse);
+			break;
+		case S_IFLNK:
+			/* softlink */
+			fnode = cur->inode;
+			printf("%s -> %s\n", dir, cur->symlink);
+			error = udf_encode_symlink(&softlink_buf,
+					&softlink_len, cur->symlink);
+			if (error) {
+				printf("SOFTLINK error %d\n", error);
+				retval = 2;
+				break;
+			}
+
+			udf_metadata_alloc(1, &icb);
+			udf_create_new_file(&fnode->st, &dscr,
+				UDF_ICB_FILETYPE_SYMLINK, &icb);
+
+			nblk = udf_datablocks(softlink_len);
+			if (nblk > 0)
+				udf_data_alloc(nblk, &data_icb);
+			udf_append_file_contents(dscr, &data_icb,
+					softlink_buf, softlink_len);
+
+			/* write out dscr (e)fe */
+			udf_inc_link(dscr);
+			udf_write_dscr_virt(dscr, udf_rw32(icb.loc.lb_num),
+				udf_rw16(icb.loc.part_num), 1);
+
+			free(softlink_buf);
+
+			udf_create_fid(ddoff, fid, cur->name, 0, &icb);
+			ddoff += udf_fidsize(fid);
+			break;
+		}
+		mydir[0] = '\0';
+	}
+
+	/* writeout directory contents */
+	dirlen = ddoff;	/* XXX might bite back */
+
+	udf_prepare_fids(dir_icb, &dirdata_icb, dirdata, dirlen);
+	udf_append_file_contents(dir_dscr, &dirdata_icb, dirdata, dirlen);
+
+	/* write out dir_dscr (e)fe */
+	udf_write_dscr_virt(dir_dscr, udf_rw32(dir_icb->loc.lb_num),
+			udf_rw16(dir_icb->loc.part_num), 1);
+
+	return retval;
+}
+
+
+static int
+udf_populate(const char *dir, fsnode *root, fsinfo_t *fsopts,
+		struct udf_stats *stats)
+{
+	struct long_ad rooticb;
+	static char path[MAXPATHLEN+1];
+	int error;
+
+	/* make sure the root gets the rootdir entry */
+	context.metadata_alloc_pos = layout.rootdir;
+	context.data_alloc_pos = layout.rootdir;
+
+	strncpy(path, dir, sizeof(path));
+	error = udf_populate_walk(fsopts, root, path, &rooticb, &rooticb);
+
+	return error;
+}
+
+
+static void
+udf_enumerate_and_estimate(const char *dir, fsnode *root, fsinfo_t *fsopts,
+		struct udf_stats *stats)
+{
+	char path[MAXPATHLEN + 1];
+	uint32_t n, nblk;
+
+	strncpy(path, dir, sizeof(path));
+
+	/* calculate strict minimal size */
+	udf_estimate_walk(fsopts, root, path, stats);
+	printf("ndirs\t\t%d\n", stats->ndirs);
+	printf("nfiles\t\t%d\n", stats->nfiles);
+	printf("ndata_blocks\t%d\n", stats->ndatablocks);
+	printf("nmetadata_blocks\t%d\n", stats->nmetadatablocks);
+
+	/* adjust for options : free file nodes */
+	if (fsopts->freefiles) {
+		/* be mercifull and reserve more for the FID */
+		stats->nmetadatablocks += fsopts->freefiles * 1.5;
+	} else if ((n = fsopts->freefilepc)) {
+		stats->nmetadatablocks += (stats->nmetadatablocks*n) / (100-n);
+	}
+
+	/* adjust for options : free data blocks */
+	if (fsopts->freeblocks) {
+		stats->ndatablocks += fsopts->freeblocks;
+	} else if ((n = fsopts->freeblockpc)) {
+		stats->ndatablocks += (stats->ndatablocks * n) / (100-n);
+	}
+
+	/* rough predictor of minimum disc size */
+	nblk  = stats->ndatablocks + stats->nmetadatablocks;
+	nblk = (double) nblk * (1.0 + 1.0/8.0);		/* free space map    */
+	nblk += 256;					/* pre-volume space  */
+	nblk += 256;					/* post-volume space */
+	nblk += 64;					/* safeguard	     */
+
+	/* try to honour minimum size */
+	n = fsopts->minsize / fsopts->sectorsize;
+	if (nblk < n) {
+		stats->ndatablocks += (n - nblk);
+		nblk += n - nblk;
+	}
+	fsopts->size = (uint64_t) nblk * fsopts->sectorsize;
+
+	/* sanity size */
+	if (fsopts->size < 512*1024)
+		fsopts->size = 512*1024;
+
+	fsopts->inodes = stats->nfiles + stats->ndirs;
+}
+
+
+void
+udf_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts)
+{
+	struct udf_stats stats;
+	uint64_t truncate_len;
+	int error;
+
+	/* determine format */
+	udf_emulate_discinfo(fsopts, &mmc_discinfo, mmc_profile);
+	printf("req_enable %d, req_disable %d\n", req_enable, req_disable);
+
+	context.sector_size = fsopts->sectorsize;
+	error = udf_derive_format(req_enable, req_disable, false);
+	if (error)
+		err(EINVAL, "makefs_udf: can't determine format");
+
+	/* names */
+	error = udf_proces_names();
+	if (error)
+		err(EINVAL, "makefs_udf: bad names given");
+
+	/* set return value to 1 indicating error */
+	error = 1;
+
+	/* estimate the amount of space needed */
+	memset(&stats, 0, sizeof(struct udf_stats));
+	udf_enumerate_and_estimate(dir, root, fsopts, &stats);
+
+	printf("Calculated size of `%s': %lld bytes, %ld inodes\n",
+	    image, (long long)fsopts->size, (long)fsopts->inodes);
+
+	/* create file image */
+	if ((fd = open(image, O_RDWR | O_CREAT | O_TRUNC, 0666)) == -1) {
+		err(EXIT_FAILURE, "%s", image);
+	}
+	if (lseek(fd, fsopts->size - 1, SEEK_SET) == -1) {
+		goto err_exit;
+	}
+	if (write(fd, &fd, 1) != 1) {
+		goto err_exit;
+	}
+	if (lseek(fd, 0, SEEK_SET) == -1) {
+		goto err_exit;
+	}
+	fsopts->fd = fd;
+
+	/* calculate metadata percentage */
+	meta_fract = fsopts->size / (stats.nmetadatablocks*fsopts->sectorsize);
+	meta_fract = ((int) ((meta_fract + 0.005)*100.0)) / 100;
+
+	/* update mmc info but now with correct size */
+	udf_emulate_discinfo(fsopts, &mmc_discinfo, mmc_profile);
+
+	udf_do_newfs_prefix();
+
+	/* update context */
+	context.unique_id = 0;
+
+	/* XXX are the next two needed? or should be re-count them? */
+	context.num_files = stats.nfiles;
+	context.num_directories = stats.ndirs;
+
+	error = udf_populate(dir, root, fsopts, &stats);
+
+	udf_do_newfs_postfix();
+
+	if (format_flags & FORMAT_VAT) {
+		truncate_len = context.vtop_offset[context.data_part] +
+			context.data_alloc_pos;
+		truncate_len *= context.sector_size;
+
+		printf("\nTruncing the disc-image to allow for VAT\n");
+		ftruncate(fd, truncate_len);
+	}
+
+	if (error) {
+		error = 2;	/* some files couldn't be added */
+		goto err_exit;
+	}
+
+	close(fd);
+	return;
+
+err_exit:
+	close(fd);
+	if (error == 2) {
+		errx(error, "Not all files could be added");
+	} else {
+		errx(error, "creation of %s failed", image);
+	}
+}
+

Index: src/usr.sbin/makefs/udf/Makefile.inc
diff -u /dev/null src/usr.sbin/makefs/udf/Makefile.inc:1.1
--- /dev/null	Mon Aug  5 14:41:57 2013
+++ src/usr.sbin/makefs/udf/Makefile.inc	Mon Aug  5 14:41:57 2013
@@ -0,0 +1,20 @@
+#	$NetBSD: Makefile.inc,v 1.1 2013/08/05 14:41:57 reinoud Exp $
+#
+
+SYSFS=	${NETBSDSRCDIR}/sys/fs
+UDF=	${SYSFS}/udf
+UDF_NEWFS=	${NETBSDSRCDIR}/sbin/newfs_udf
+FSCK=	${NETBSDSRCDIR}/sbin/fsck	# use progress meter.
+
+.PATH:	${.CURDIR}/udf ${UDF} ${UDF_NEWFS} ${FSCK}
+
+CPPFLAGS+= -I${UDF} -I${UDF_NEWFS} -I${FSCK}
+
+SRCS += udf_create.c udf_write.c udf_osta.c
+
+#SRCS += main.c		# newfs
+#.if !defined(HOSTPROG)
+#SRCS += progress.c	# progress bar (fsck)
+#.endif
+
+#SRCS += v7fs_estimate.c v7fs_populate.c

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