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Skunkware 5
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decryptdir
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1995-07-21
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1KB
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58 lines
#!/usr/skunk/bin/expect --
# Name: cryptdir
# Author: Don Libes, NIST
#
# Synopsis:
# cryptdir [dir]
# decryptdir [dir]
#
# Encrypt or decrypts the current directory or named directory if given.
if {[llength $argv] > 0} {
cd $argv
}
# encrypt or decrypt?
set decrypt [regexp "decrypt" $argv0]
set timeout -1
stty -echo
send "Password:"
expect -re "(.*)\n"
send "\n"
set passwd $expect_out(1,string)
# wouldn't want to encrypt files with mistyped password!
if !$decrypt {
send "Again:"
expect -re "(.*)\n"
send "\n"
if ![string match $passwd $expect_out(1,string)] {
send_user "mistyped password?"
stty echo
exit
}
}
stty echo
log_user 0
foreach f [glob *] {
set strcmp [string compare .crypt [file extension $f]]
if $decrypt {
# skip files that don't end with ".crypt"
if 0!=$strcmp continue
spawn sh -c "exec crypt < $f > [file root $f]"
} else {
# skip files that already end with ".crypt"
if 0==$strcmp continue
spawn sh -c "exec crypt < $f > $f.crypt"
}
expect "key:"
send "$passwd\r"
expect
wait
exec rm -f $f
send_tty "."
}
send_tty "\n"