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-rw-r--r--examples/misc/wall.perl76
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;
+