v2.1 (April 1999)
	(all)		added the -f(ast) option.
	(smem)		added a new tool: smem, which wipes free memory
	(srm/sfill/smem) added rlimit resets
	(sfill/sswap)	quadroupled the buffer size
	(srm/sfill/sswap) fix for openbsd which doesn't know O_SYNC open(2).
        (srm)		added the -d(ot) option. Ignores "." and ".." on the
			commandline
	(srm)		fixed directory and file link races.
			Thanks to Solar Designer bringing this to my attention.
			Note that there is a small racecondition left which
			can be exploited from an attacker to chmod 0600 a file
			to it's owner if the owner is running srm and the
			attacker has write access to the target directory.
			The other wipe programs have this problem too - and
			worse ( - wiping anything in your tree for which you
			have write permission ...).

v2.0
	(all)		added man pages for srm, sfill and sswap!
	(all)		increased speed by ~300% by writing big buffers.
	(all)		using /dev/urandom for random passes now if available
			(this is more secure, however costs speed)
	(all)		added the O_SYNC bit to all open calls. Should not
			add security, but who knows how weired systems behave.
	(all)		the -s option(s) is now ignored. The standard mode
			is now the secure mode. Use -l to lessen the security.
	(srm)		added the option -r for directory recursion
	(srm)		doing a chmod() now before opening the file
	(srm)		fixed handling of symlink and special files
	(rm.diff)	includes all the above except for the new -s/-l change
	(all)		cosmetics + documenation updates

v1.8
	(rm.diff)	updated the diff and did some more security and speed.
	(all)		a bit cosmetics

v1.7
	(srm)		using fsync() now, which gives you 10-25% speed !
	(all)		using perror() for better error reporting
	(srm/sfill)	included file truncating before unlinking (security!)

v1.6
	[www distrib.]	http://r3wt.base.org - check out the THC area
	[email]		my new email: vh@reptile.rug.ac.be
	(sswap)		added a new tool: a secure swap cleaner. remember to
			unmount your swap first. *only tested on linux* !
	(srm/sfill) 	added trapping signals and exiting clean on them
	(srm/sfill)	errors are sent do stderr now instead to stdout
	(srm/sfill)	general code cleanup
	(sfill)		fixed race condition to prevent symlink attacks
	(sfill)		warning if executed by user!=root, because not all
			free space can be overwritten (idea by fyodor@dhp.com)
	(rm.diff)	replaces the rm.c replacement with a diff (+ bugfix)
	(sdel.exe/sfill.exe) removed the msdos versions. They 1st already
			included the features above and 2nd are no longer
			supported (at least by me - get a good unix)

v1.4
	(sfill)		some flushing on stdout done
	(sfill)		more error checking
	(srm/sfill)	cosmetics

v1.3
			initial public release.
