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87 lines
2.5 KiB
Perl
87 lines
2.5 KiB
Perl
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#!/usr/bin/perl
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#!/usr/bin/perl -w
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#
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# If called as wakeup.pl -f file it reads lines of the form
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#
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# aa:bb:cc:dd:ee;ff 12.34.56.78 or
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# aa:bb:cc:dd:ee:ff foo.bar.com
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# aa:bb:cc:dd:ee:ff
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#
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# which are MAC addresses and hostnames of NICs to send a wakeup packet.
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# Broadcast is used to send the magic packets, so anybody can run the command.
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# Notice that many routers do NOT forward broadcasts automatically!!
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# Comments in the file start with #.
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#
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# Or MAC addresses can be specified on the command line
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#
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# wakeup.pl aa.bb.cc.dd.ee.ff
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#
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# Or both can be used:
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#
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# wakeup.pl -f addresses.cfg 11:22:33:44:55:66
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#
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# Use option -b to specify broadcast mask.
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# Use option -d for screen output.
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#
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# Perl version by ken.yap@acm.org after DOS/Windows C version posted by
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# Steve_Marfisi@3com.com on the Netboot mailing list
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# Released under GNU Public License, 2000-01-08
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# Modified for use with NetWare by gk@gknw.de, 2000-09-18
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# With NetWare you have to use Socket.NLP from NetWare Perl #334 or higher!
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# You could download Socket.NLP #334 from: http://www.gknw.de/mpform.html
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#
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use Getopt::Std;
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use Socket;
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getopts('b:df:p:q');
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$brc = $opt_b || '255.255.255.255';
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$port = $opt_p || 60000;
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die "Malformed broadcast address: $brc!\n" if ($brc !~ /^(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$)/);
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if (defined($opt_f)) {
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unless (open(F, $opt_f)) {
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print "open: $opt_f: $!\n";
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} else {
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print "Using file $opt_f...\n" if ($opt_d);
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while (<F>) {
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next if /^\s*#/; # skip comments
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my ($mac, $ip) = split;
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next if !defined($mac) or $mac eq '';
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&send_broadcast_packet($mac,$ip);
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}
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close(F);
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}
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}
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while (@ARGV) {
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send_broadcast_packet(shift(@ARGV));
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}
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sub send_broadcast_packet {
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my ($mac,$ip) = @_;
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if ($mac =~ /-/) {
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($bc,$mac) = split(/-/,$mac);
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} else {
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$bc = $brc;
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}
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if ($mac !~ /^[\da-f]{2}:[\da-f]{2}:[\da-f]{2}:[\da-f]{2}:[\da-f]{2}:[\da-f]{2}$/i) {
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print "Malformed MAC address $mac\n";
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return;
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}
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my $nbc = inet_aton($bc);
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# Remove colons
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$mac =~ tr/://d;
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# Magic packet is 6 bytes of FF followed by the MAC address 16 times
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$magic = ("\xff" x 6) . (pack('H12', $mac) x 16);
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# Create socket
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socket(S, PF_INET, SOCK_DGRAM, getprotobyname('udp')) or die "socket: $!\n";
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# Enable broadcast
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setsockopt(S, SOL_SOCKET, SO_BROADCAST, 1) or die "setsockopt: $!\n";
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# Send the wakeup packet
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printf("$0: Sending wakeup packet to %04X:%08X-%s %s\n",$port,unpack('N',$nbc),uc($mac),$ip) if ($opt_d);
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defined(send(S, $magic, 0, sockaddr_in($port, $nbc)))
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or print "send: $!\n";
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close(S);
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}
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