4.4BSD snapshot (revision 8.1); add 1993 to copyright

test returns of des_setkey, des_cipher, setkey, encrypt

use faster routines, also check for errno after setkey (Ultrix)

changes from Matt Bishop, mostly cleanups

change the copyright/disclaimer to the standard Berkeley one
delete the -c option; it's the default; discard first argument of err()
reformat the manual page somewhat to standard Berkeley
change CNUL

change the copyright/disclaimer to the standard Berkeley one
delete the -c option; it's the default; discard first argument of err()
reformat the manual page somewhat to standard Berkeley
change CNULL to NULL; rename from "des program" to "bdes"
change key from an argument to -k option (Sun compatibility)
change -e to -b, -i to -d (Sun compatibility), allow options to override
minor formatting changes, add usage message

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Version from Matt Bishop
date and time created 91/04/21 18:11:41 by bostic