Updated: sharutils-4.14-1

Eric Blake (cygwin) ebb9@byu.net
Wed Apr 16 22:43:00 GMT 2014

A new release of sharutils, 4.14-1, is available, leaving 4.10-2 as
previous on 32-bit cygwin.  It is also my first 64-bit build; 4.13.5-1
on 64-bit cygwin was not built by me, but provided while bootstrapping
the release.

This is a new upstream version.  Using shar on text mounts continues to
have the possibility that line endings on text files might not be
handled the way you want, but if it was truly a text file, that should
not matter to you; the heuristic that shar uses to decide between text
and binary files is whether it contains non-printing characters.  It is
safer to use shar/unshar on binary mounts (remembering that unshar is
inherently unsafe).  uuencode and uudecode, on the other hand, work
reliably regardless of the underlying mount point.  See also the package
documentation found in /usr/share/doc/sharutils/.

The sharutils package contains the GNU shar utilities, a set of tools
for encoding and decoding packages of files (in binary or text format)
in a special plain text format called shell archives (shar).  This
format can be sent through e-mail (which can be problematic for regular
binary files).  The shar utility supports a wide range of capabilities
(compressing, uuencoding, splitting long files for multi-part mailings,
providing checksums), which make it very flexible at creating shar
files.  After the files have been sent, the unshar tool scans mail
messages looking for shar files.  Unshar automatically strips off mail
headers and introductory text and then unpacks the shar files.

Note that unshar is inherently unsafe by design, because it executes
arbitrary shell scripts; therefore the creation of shar archives should
be limited to situations where the receiver trusts the sender.  However,
uuencode and uudecode are useful in their own right, and are safe to use.

To update your installation, click on the "Install Cygwin now" link on
the http://cygwin.com/ web page.  This downloads setup.exe to your
system. Save it and run setup, answer the questions and pick up
'sharutils' from the 'Archive' category.

Note that downloads from cygwin.com aren't allowed due to bandwidth
limitations.  This means that you will need to find a mirror which has
this update, please choose the one nearest to you:

If you want to make a point or ask a question the Cygwin mailing list is
the appropriate place.

Eric Blake
volunteer cygwin sharutils package maintainer

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