A.P. Lawrence

WinPopup

Bruce Garlock came across this script and asked the authors for permission to republish it here:

Hm, how old this ditty is? I did not really touch Samba for a very loooong while. Does it still works with current versions? I even do not really remember how this script looks although I can roughly imagine.:-) I thought that at least in some moment this was included with some other third-party examples in Samba sources. I may mix that with some other two- or three-liner.

If you think that this is still useful then, sure, go ahead and publish it. It is already somewhere on the net. I hope that it is not too grotty. Likely faster to throw in something like that when you need it instead of trying to find it somewhere.

Michal

Bruce notes: FYI: I have tested this on SAMBA 2.2.7, RH AS 2.1

This is a perl script that sends out a SMB Message to all users via "WinPopUp", using SAMBA. I thought it would be a nice addition for the code section of the website. The authors and credits are part of the perl script.

#!/usr/bin/perl
# 
#@(#) smb-wall.pl Description:
#@(#) A perl script which allows you to announce whatever you choose to
#@(#) every PC client currently connected to a Samba Server...
#@(#) ...using "smbclient -M" message to winpopup service.
#@(#) Default usage is to message every connected PC.
#@(#) Alternate usage is to message every pc on the argument list.
#@(#)  Hacked up by Keith Farrar <farrar@parc.xerox.com>
#
# Cleanup and corrections by
# Michal Jaegermann <michal@ellpspace.math.ualberta.ca>
# Message to send can be now also fed (quietly) from stdin; a pipe will do.
#=============================================================================

$smbstatus = "/usr/bin/smbstatus";
$smbshout = "/usr/bin/smbclient -d 3 -M";

if (@ARGV) {
    @clients = @ARGV;
    undef @ARGV;
}
else {  # no clients specified explicitly
    open(PCLIST, "$smbstatus |") || die "$smbstatus failed!.\n$!\n";
    while(<PCLIST>) {
        last if /^Locked files:/;
        split(' ', $_, 6);
        # do not accept this line if less then six fields
        next unless $_[5];
        # if you have A LOT of clients you may speed things up by
        # checking pid - no need to look further if this pid was already
        # seen;  left as an exercise :-)
        $client = $_[4];
        print "\n",$client;
#       next unless $client =~ /^\w+\./;       # expect 'dot' in a client name
        next if grep($_ eq $client, @clients); # we want this name once
        push(@clients, $client);
    }
    close(PCLIST);
}

if (-t) {
    print <<'EOT';

Enter message for Samba clients of this host
(terminated with single '.' or end of file):
EOT

    while (<>) {
        last if /^\.$/;
        push(@message, $_);
    }
}
else { # keep quiet and read message from stdin
    @message = <>;
}

Control Spam and Viruses

Run your own mailserver

foreach(@clients) {
    print "To $_:\n";
    if (open(SENDMSG,"|$smbshout $_")) {
        print SENDMSG @message;
        close(SENDMSG);
    }
    else {
        warn "Cannot notify $_ with $smbshout:\n$!\n";
    }
}

exit 0;

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