diff options
| -rw-r--r-- | examples/misc/wall.perl | 76 |
1 files changed, 50 insertions, 26 deletions
diff --git a/examples/misc/wall.perl b/examples/misc/wall.perl index fc3dc2e2c0..9303658ce1 100644 --- a/examples/misc/wall.perl +++ b/examples/misc/wall.perl @@ -6,40 +6,64 @@ #@(#) ...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> +#@(#) 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. #============================================================================= -$smbstatus = "/usr/local/bin/smbstatus"; -$smbclient = "/usr/local/bin/smbclient"; -print STDOUT "\nEnter message for Samba clients of this host\n"; -print STDOUT "(terminated with single '.' or end of file):\n"; +$smbstatus = "/usr/local/bin/smbstatus"; +$smbshout = "/usr/local/bin/smbclient -M"; -while ( <STDIN> ) { - /^\.$/ && last; - push(@message, $_); +if (@ARGV) { + @clients = @ARGV; + undef @ARGV; } +else { # no clients specified explicitly + open(PCLIST, "$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]; + 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'; -if ( $ARGV[0] ne "" ) { - $debug && print STDOUT "Was given args: \n\t @ARGV\n"; - foreach $client ( @ARGV ) { - $pcclient{$client} = $client; - } -} else { - open( PCLIST, "$smbstatus | /bin/awk '/^[a-z]/ {print $5}' | /bin/sort | /bin/uniq|"); - while ( <PCLIST> ) { - /^[a-z]+[a-z0-9A-Z-_]+.+/ || next; - ($share, $user, $group, $pid, $client, @junk) = split; - $pcclient{$client} = $client; - } - close(PCLIST); +Enter message for Samba clients of this host +(terminated with single '.' or end of file): +EOT + + while (<>) { + last if /^\.$/; + push(@message, $_); + } +} +else { # keep quiet and read message from stdin + @message = <>; } -foreach $pc ( keys(%pcclient) ) { - print STDOUT "Sending message "; - $debug && print STDOUT " <@message> \n"; - print STDOUT "To <$pc>\n"; - open(SENDMSG,"|$smbclient -M $pc") || next; +foreach(@clients) { +## print "To $_:\n"; + if (open(SENDMSG,"|$smbshout $_")) { print SENDMSG @message; close(SENDMSG); + } + else { + warn "Cannot notify $_ with $smbshout:\n$!\n"; + } } + +exit 0; + |