use Getopt::Long;
sub check_des {
return (crypt("fnord", "aa") =~ m/^aa/);
}
sub check_md5 {
return (crypt("fnord", "\$1\$aa") =~ m/^\$1\$/);
}
sub usage {
die "Usage: cryptpasswd [--des|--md5|--check] plaintext_password [crypted_password]\n";
}
@saltc = ( '.', '/', '0'..'9', 'A'..'Z', 'a'..'z' );
sub main {
Getopt::Long::Configure("no_ignore_case", "bundling");
my @options = ( "des|d+", "md5|m+", "check|c+" );
usage() unless (eval { Getopt::Long::GetOptions(@options) } );
if ($opt_check) {
usage unless ($ if (crypt($ARGV[0], $ARGV[1]) ne $ARGV[1]) {
print "Password BAD\n";
return 0;
} else {
print "Password OK\n";
return 1;
}
}
usage() unless ($opt_des || $opt_md5);
usage() unless ($
die "DES password hashing not available\n"
if ($opt_des && !check_des());
die "MD5 password hashing not available\n"
if ($opt_md5 && !check_md5());
$salt = ($opt_md5 ? '$1$' : '');
for ($i = 0; $i < ($opt_md5 ? 8 : 2); $i++) {
$salt .= $saltc[rand 64];
}
$salt .= '$' if ($opt_md5);
print crypt($ARGV[0], $salt), "\n";
1;
}
exit !main();