www2.0/public/bin/smac.pl

51 lines
1.7 KiB
Perl

#!/usr/bin/env perl
#
# danielbowling424@msn.com
# http://swagg.cc
#
# Copyright 2019 Daniel Bowling, Mount Rainier, Maryland, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
use strict;
use warnings;
sub unix_mac {
$_ =~ tr/[A-F]/[a-f]/; # toggle case
$_ =~ s/[\-\.:]//g; # strip out symbols
$_ =~ s/\G[a-f0-9]{2}\K/:/g; # insert colons every 2 characters
$_ =~ s/[:]$//; # strip off remainder colon
return $_;
}
if (@ARGV) {
@_ = @ARGV;
} elsif (not -t STDIN) {
chomp (@_ = <STDIN>);
} else {
print "USAGE: $0 <MAC ADDRESS(S)>\n" .
"Fix up MAC from arguments or standard input if no argument given.\n";
exit 64;
}
foreach (@_) {
unix_mac($_);
print "$_\n";
}