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Untested, but compiles!

1. "make clean" will just remove stuff built in the process of a regular build
2. "make distclean" will also clean out configure generated files.

This is how it was always supposed to be, there was just some bitrot.

with every DOS partition.  It was only used by NTFS and has been replaced
by equally hacky changes to the NTFS library.

The benefit of the latter is that it at least works all the time on
Linux and all FreeBSD versions.

Add a new interface to the library to enable us to use the whole-disk
device rather than having to (figure out and) use a specific slice device.

to build under FreeBSD 5 (really newer gcc's)

path.

Ok, not really any fundamental changes, mostly a source reorganization,
but some new features as well:

1. Split off FS specific code for all FS types into subdirectories.
   imagezip.c was just getting unwieldy.  You can now (in theory, I
   haven't enabled this in any easy way) build a version of imagezip
   with only the FSes you care about.

2. As part of the above, localize the filesystem specific headers in
   the subdirs instead of relying on the installed system headers.
   This allows easy building of, for example, BSD FS support under
   Linux.

3. Hacked up the GNUmakefiles some so that imagezip with all FS support
   will build (in the Emulab context) under Linux and FreeBSD 5.1 as
   well as FreeBSD 4.x.  Still a hack, for Linux you need to first do:
	setenv LINUX 1
	setenv HAVE_GCC3 1
	setenv HAVE_LOCALE 1
   and for FreeBSD 5.x:
	setenv HAVE_GCC3 1
	setenv HAVE_LOCALE 1
   these trigger ifdefs in some of the Makefiles to DTRT.  Imagezip
   and frisbee still need a standalone configure...

4. Added support for UFS2 (aka FreeBSD 5.x default filesystems).

5. Added "-S dos-type" option to imagezip.  This is the general form
   of the -b, -l, and -n options to force imagezip to treat the device
   as though it contains a filesystem of the indicated type.

cruft needed to compile ntfs support into imagezip, including the i18n
unicode library
routines from FBSD 5.0.  Most of the magic is in the makefiles, but there
is a patch for the ntfsprogs package we're using to get NTFS support.
(patch contributed by Russ).

Note that the ntfsprogs tarball is located in emulab webspace (like TG).

Don't worry!  You still have to pass --enable-windows to configure in order to
pull any of this in, although it should compile nicely from here on out.

Russ will commit his imagezip changes (hiber, and page file skipping) soon.

	add -Wall to CFLAGS and clean up lint
	update the TODO file
	explicitly size the header fields (e.g., int32_t not int)

imagezip:
	Version 2.

	Adds two ints to the header to help track free space.  Each chunk
	now has a first and last sector number which can describe any free
	block before or after the data contained in the chunk.  This is
	needed in order to properly zero all free space when laying down
	an image.  In practice: the first chunk describes any free space
	before the first allocated range and any free space after its
	contained ranges and before the first allocated range in the second
	chunk.  Every other chunk then describes just free space following
	itself (since the previous chunk has already described the space
	before this chunk).  The point being, we only describe each free
	range once.

	Added "relocation" information.  Relocation entries go in the chunk
	header along with region descriptors.  This allows us to identify
	chunks of data which need to be absolute disk blocks instead of
	offsets from the containing partition.  This is now used for BSD-slice
	partition tables which contain absolute disk blocks.  We can now
	create an image in one slice and reload it into another slice.

	Allow zlib compression level 0 (no compression).  This might be
	useful on machines that have slow CPUs: do just FS-compression and
	transfer the image elsewhere faster where it could be re-zipped
	with regular compression.

	Fix goof.  Previously we were not saving any DOS partition with
	an unrecognized type.  We should be naively compressing it instead.
	This is what we now do.  We continue to skip partitions of type 0
	("unused").

	mikeism: add handler for SIGINFO (^T) to report progress of
	a zip-age.

	Added everybody's favorite "dots" mode for reporting progress.

	Eliminate some excess copies left over from the conversion from
	write-every-little-piece to buffer-up-a-full-chunk-and-then-write.

	Eliminaged the special case handling of no skips (ranges) in
	compress_image by creating a single allocated range describing
	the whole disk/partition in this case.

	For NTFS, make the behavior of calling missing unicode routines
	be to return an error rather than exit.  These calls happen,
	but their failing doesn't seem to be fatal.

	Lots of typical mike-pissing on everything else.

imageunzip:

	Modify to handle both V1 and V2 images.

	In slice mode, make sure we don't write past the bounds of
	the slice.  ES&D if we try.

	Make output to unseekable devices work again (broken when
	pwrite was added)

	Add debug -F (Frisbee) option to randomize the presentation of
	chunks to the unzip/write threads.  Used to simulate frisbee.

	Add "-T DOS-type" option to tell imageunzip, when in slice mode,
	to set the type of the slice in the DOS partition table.
	This is useful if you are dropping say a BSD filesystem into
	an unused slice, you don't have to go back later and set this
	with fdisk.  Considered making this info part of the image
	itself (recorded by imagezip when creating a slice image),
	but decided against it.

	writezero takes an off_t for the size, we can be asked to write
	many gigabytes of zero at the end of a disk.

	Turn off dots mode by default.  Ya wanna see spots?  Ya gotta
	turn it on!

	Lots of typical mike-pissing on everything else.

imagedump:

	New tool for checking/dumping the structure of an image and
	reporting stats about it.

We now give instructions for how to get the NTFS library needed to compile the NTFS version of imagezip.

with --enable-windows.  Requires the Linux-NTFS code, gcc 3, and a version
of FreeBSD with <wchar.h> (post-4.3 apparently).

As is tradition, a designated Crusty Old Fart (COF) must piss all over the
code to ensure it is properly...eh, "seasoned."

signed, COF #2 (aka mike)