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CHANGELO
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1990-11-12
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The following things have been done to PAX since the last revision
which was posted to the net:
* The paxdir.h and paxdir.c files have been removed. I have opted
instead to include Doug Gwyn's dirent package in a separate
directory. It is suggested that if you do not have the readdir(),
seekdir(), telldir(), etc., then you should install Doug's directory
library into your standard C library. Too many packages these days
need these routines.
* The source code has been more extensively documented. The source
code documentation and formatting style is the consistent throughout
the code (amazing as it sounds) and all comments have been checked
for correctness.
* The copyright information has changed slightly. The USENIX
Association supplied no support for this version of Pax, so they are
not longer a copyright holder. This will impact companies which are
integrating Pax into their products. The distribution of Pax in
either source or binary forms are still permitted.
For those that care, the copyright is identical to the Berkeley
copyright notice (or was as of the last time Keith sent me a copy
of Berkeley's copyright notice).
* The source has been put under Larry Wall's Metaconfig package. This
should make installation of Pax easier, especially on some of the
more esoteric systems out there. A number of new units have been
developed to make porting the system using metaconfig work. I have
tested it one a wide variety of machines, but if there are problems,
I would appreciate hearing about them.
* In the past versions, there were two slightly different interfaces
depending on whether the target system was BSD or USG. These
differences have been removed so that there is only one interface.
This will rectify problems with differing output depending on which
machine Pax was compiled on.
* BSD tar had a problem extracting Pax archives because Pax was not
appending a '/' to the end of directories which were archived. Now
all directories have the '/' added. USG doesn't care if the '/'s
are there or not.
* Pax failed to detect CPIO archives which were not written with the
-c option. Pax now recognizes standard cpio format files.
* File sizes were not getting correctly reported on 16 bit machines
due to file size being interpretted as an int, rather than a long.
The code has been reworked to allow for proper operation on 16-bit
machines.
* All global identifiers now unique to 6 characters for ANSI
compliance.
* Added debugging code which is selectable via compile options and
command line. The code for debugging came from Fred Fish's dbug
library. I have not included the entire dbug library, only the
dbug.c and dbug.h files. The rest of the library can be snarfed
from the various source archives around the net.
* The AT&T Public Domain version of getopt is supplied for those
systems which do not happen to have it in a C library. Configure
will determine if you have getopt(), and if not, will automatically
use the supplied source code.
* Attempting to archive two files, one with name "tar-longlink" linked
to another with a name exactly 100 character long, the regular file
could not be archived because the name was said to be too long, and
the linked file was archived as a regular file. Posix says that
when the "linkename" is longer than 99 character, the linked file is
not to be archived. Linknames that are longer than 99 characters
are now not written in the archive, and the file is archived
normally.
* The -m option for cpio was documented as applyint only to the -i and
cases. However, cpio -o by dfault used to lose the file
modification times, but cpio -om would save the original file
modification times in the archive. Cpio -o now saves the
modification time in the archive.
* When listing archives, files which were linked were not removed from
link chain, causing erroneous "unseen link(s)" messages to be
reported.
* Any printfs which use the stat field sb_size now use the "%ld"
specification rather than the "%d" specification.
* Pax now properly determines old style cpio headers.
---- Beta Test Fixes ----
* Added missing declaration for symnam in list.c
* Configure now understands some of the intracacies of the HP 9000 series
machines. [Johan Vromans]
* dbug is now more portable and tied to the pax configuration parameters.
* Added dio_to_binary() to msdos.c and fileio.c for true
MSDOS character device driver (eg. a real tape drive) support.
Only works with filename given on command line (not stdout).
[Harold Walters]
* Fixed endless loop condition in outflush() in buffer.c
when write returns 0 for end of volume. [Harold Walters]
* Added ifdef'd include for mtio.h in append.c. [Harold Walters]
* Added check for MIN definition in pax.h [Harold Walters]
* Updated README for MSDOS stuff [Harold Walters]
* Configure now searches for major rather then makedev when determining
which header major and minor are in.
Mark H. Colburn
Open Systems Architects, Inc.