diff options
Diffstat (limited to 'src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/ip/get.ipv4remote.pl')
| -rwxr-xr-x | src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/ip/get.ipv4remote.pl | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/ip/get.ipv4remote.pl b/src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/ip/get.ipv4remote.pl new file mode 100755 index 00000000..fb412554 --- /dev/null +++ b/src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/test/tst/common/ip/get.ipv4remote.pl @@ -0,0 +1,104 @@ +#!/usr/bin/perl -w +# +# CDDL HEADER START +# +# The contents of this file are subject to the terms of the +# Common Development and Distribution License (the "License"). +# You may not use this file except in compliance with the License. +# +# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE +# or http://www.opensolaris.org/os/licensing. +# See the License for the specific language governing permissions +# and limitations under the License. +# +# When distributing Covered Code, include this CDDL HEADER in each +# file and include the License file at usr/src/OPENSOLARIS.LICENSE. +# If applicable, add the following below this CDDL HEADER, with the +# fields enclosed by brackets "[]" replaced with your own identifying +# information: Portions Copyright [yyyy] [name of copyright owner] +# +# CDDL HEADER END +# + +# +# Copyright 2008 Sun Microsystems, Inc. All rights reserved. +# Use is subject to license terms. +# +#pragma ident "%Z%%M% %I% %E% SMI" + +# +# get.ipv4remote.pl [tcpport] +# +# Find an IPv4 reachable remote host using both ifconfig(1M) and ping(1M). +# If a tcpport is specified, return a host that is also listening on this +# TCP port. Print the local address and the remote address, or an +# error message if no suitable remote host was found. Exit status is 0 if +# a host was found. +# + +use strict; +use IO::Socket; + +my $MAXHOSTS = 32; # max hosts to port scan +my $TIMEOUT = 3; # connection timeout +my $tcpport = @ARGV == 1 ? $ARGV[0] : 0; + +# +# Determine local IP address +# +my $local = ""; +my $remote = ""; +my %Broadcast; +my $up; +open IFCONFIG, '/usr/sbin/ifconfig -a |' or die "Couldn't run ifconfig: $!\n"; +while (<IFCONFIG>) { + next if /^lo/; + + # "UP" is always printed first (see print_flags() in ifconfig.c): + $up = 1 if /^[a-z].*<UP,/; + $up = 0 if /^[a-z].*<,/; + + # assume output is "inet X ... broadcast Z": + if (/inet (\S+) .* broadcast (\S+)/) { + my ($addr, $bcast) = ($1, $2); + $Broadcast{$addr} = $bcast; + $local = $addr if $up and $local eq ""; + $up = 0; + } +} +close IFCONFIG; +die "Could not determine local IP address" if $local eq ""; + +# +# Find the first remote host that responds to an icmp echo, +# which isn't a local address. +# +open PING, "/usr/sbin/ping -ns $Broadcast{$local} 56 $MAXHOSTS |" or + die "Couldn't run ping: $!\n"; +while (<PING>) { + if (/bytes from (.*): / and not defined $Broadcast{$1}) { + my $addr = $1; + + if ($tcpport != 0) { + # + # Test TCP + # + my $socket = IO::Socket::INET->new( + Proto => "tcp", + PeerAddr => $addr, + PeerPort => $tcpport, + Timeout => $TIMEOUT, + ); + next unless $socket; + close $socket; + } + + $remote = $addr; + last; + } +} +close PING; +die "Can't find a remote host for testing: No suitable response from " . + "$Broadcast{$local}\n" if $remote eq ""; + +print "$local $remote\n"; |