This is a Perl script which can add user-specified data to linked
binary object files or read the same data back as requested. It
provides a simpler way of tagging objects than by compiling in, or
linking in, the data. Following is a sequence which operates on the
Unix 'cat' utility as an example (after copying it to /tmp and making
it writeable):

% cp /bin/cat /tmp && chmod a+w /tmp/cat
% date | ccwhat -a /tmp/cat
% ccwhat /tmp/cat
/tmp/cat:
	Tue Mar 14 13:43:25 EDT 1997

The -a flag causes ccwhat to read data from stdin and add it to the
object file. Without -a it searches the file for previously-embedded
data.

Run "perldoc ccwhat" to see full documentation.  Also, "ccwhat -h"
will print out a usage summary plus a few examples.

Note: this script contains an implementation of the Unix what(1)
command written in perl. Some users may wish to simply break that
code out in order to have a portable what program.