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[/] [or1k/] [trunk/] [insight/] [expect/] [example/] [cryptdir] - Rev 1765

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#!../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?\n"
                stty echo
                exit
        }
}
stty echo

log_user 0
foreach f [glob *] {
        # strip shell metachars from filename to avoid problems
        if [regsub -all {[]['`~<>:-]} $f "" newf] {
                exec mv $f $newf
                set f $newf
        }

        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"

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