Updated: sharutils-4.6.3-1

Eric Blake ebb9@byu.net
Mon Dec 11 13:52:00 GMT 2006

Hash: SHA1

A new release of sharutils, 4.6.3-1, is available, replacing 4.5.3-1 as

This is a new stable upstream release.  It switches over to the cygport
build framework, and maintains cygwin-specific patches from the previous
release.  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.  Upstream changes since 4.5.3 are listed below;
see also the package documentation found in /usr/share/doc/sharutils-4.6.3/.

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 sources.redhat.com (aka 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 maintainer

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