Tp, Dtp and Itp Archive Programs
		--------------------------------

These programs list the table of contents and extract files from tp, dtp
and itp Unix archives. These archive formats were used in 6th and 7th
Edition Unix, and predate tar(1) format.


How do I know if my file is in tp/dtp/itp format?
-------------------------------------------------

Simple. Compile tp, dtp and itp, and try doing a table of contents using
each program:

   % tp  t file
   % dtp t file
   % itp t file

If one of them gives something sane-looking, you have probably found the
right one, and you can use the `x' option with the same command to extract
files.


Caveats
-------

The programs do not use the checksums available in the archives. If the
archive is corrupt, the programs will merrily extract garbage.

mkdir -p is used to recursively make directory hierachies if they are needed.
This could be recoded, but the programs were hacked up to do what I needed
and I haven't fixed this yet.

The programs have only had a small sample of input archives to extract. Thus,
they may not extract all tp/dtp/itp archives. Bug reports and patches most
welcome.


Other Notes
-----------

I wrote these to extract archives of this type off old backup tapes. I
hope some other people find the programs useful.

I am _very_ interested in finding programs that can extract from 7th
Edition dump/restor archives, and also from 6th and 7th Edition filesystem
images. If you have any of these or know of them, please email me!

	Warren Toomey	wkt@cs.adfa.oz.au    March 1995