looks up MAC vendor information

mac-lookup.pl

#!/usr/bin/env perl
#
# mac-lookup.pl - looks up MAC vendor information
#
# Looks up MAC vendor information using Net::MAC::Vendor module.
#
# Seungwon Jeong <[email protected]>
#
# Copyright (C) 2012 by Seungwon Jeong
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see
# <http://www.gnu.org/licenses/>.

use perl5i::2;

use Net::MAC::Vendor;

if ( @ARGV < 1 ) {
    say "Usage: ${PROGRAM_NAME} mac_address ...";
    exit 2;
}

my $first = 1;

for my $mac_address (@ARGV) {
    if ($first) {
	$first = 0;
    } else {
	say q{}; # Blank line
    }

    say $mac_address;

    my $info_ref = Net::MAC::Vendor::lookup($mac_address);
    for my $info (@$info_ref) {
        say $info;
    }
}