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#!/usr/bin/perl
#
# Module: vyatta-identify-interface.pl
#
# **** License ****
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# 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.
#
# This code was originally developed by Vyatta, Inc.
# Portions created by Vyatta are Copyright (C) 2007 Vyatta, Inc.
# All Rights Reserved.
#
# Author: An-Cheng Huang
# Date: February 2008
# Description: Script to visually identify an interface
#
# **** End License ****
use strict;
my $intf = shift;
if (!($intf =~ /^eth\d+/)) {
print STDERR "This command only supports Ethernet interfaces\n";
exit 1;
}
if (! -e "/sys/class/net/$intf") {
print STDERR "\"$intf\" is not a valid interface\n";
exit 1;
}
my $cpid = fork();
if ($cpid == 0) {
# child
print "Interface $intf should be blinking now.\n";
print "Press Enter to stop...\n";
exec("/usr/sbin/ethtool -p $intf");
# not reachable
exit 0;
} else {
# parent
my $c = 0;
while (($c = getc) ne "\n") {
}
kill 9, $cpid;
waitpid $cpid, 0;
}
exit 0;
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