[net.sources.d] "sharks" shar checking script

thomas@utah-gr.UUCP (Spencer W. Thomas) (10/01/86)

Unfortunately, this nice idea is insufficient against the determined
system cracker.  In throwing away all the "here" document, it is
ignoring a big hole.  Try the following (works in both csh and sh here):

cat <<eof
`date`
eof

You get the current date on the output.  So your system cracker can
still insert any random command into the 'here' text and sharks will not
detect it.

Oh well.

-- 
=Spencer   ({ihnp4,decvax}!utah-cs!thomas, thomas@utah-cs.ARPA)