Added initial version off cussh.pl to contrib/.

cussh (Collectd Unix Socket SHell) is a little interactive frontend for
the unixsock plugin. It supports two commands - GETVAL and PUTVAL - just
as the unixsock plugin itself.

Signed-off-by: Sebastian Harl <sh@tokkee.org>
Signed-off-by: Florian Forster <octo@huhu.verplant.org>

diff --git a/contrib/cussh.pl b/contrib/cussh.pl
new file mode 100755 (executable)
index 0000000..65c634e
--- /dev/null
+++ b/contrib/cussh.pl
@@ -0,0 +1,185 @@
+#!/usr/bin/perl
+#
+# collectd - contrib/cussh.pl
+# Copyright (C) 2007  Sebastian Harl
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation; only version 2 of the License is applicable.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+#
+# Author:
+#   Sebastian Harl <sh at tokkee.org>
+#
+
+=head1 NAME
+
+cussh - collectd UNIX socket shell
+
+=head1 SYNOPSIS
+
+B<cussh> [I<E<lt>pathE<gt>>]
+
+=head1 DESCRIPTION
+
+B<collectd>'s unixsock plugin allows external programs to access the values it
+has collected or received and to submit own values. This is a little
+interactive frontend for this plugin.
+
+=head1 OPTIONS
+
+=over 4
+
+=item I<E<lt>pathE<gt>>
+
+The path to the UNIX socket provided by collectd's unixsock plugin. (Default:
+F</var/run/collectd-unixsock>)
+
+=back
+
+=cut
+
+use strict;
+use warnings;
+
+use Collectd::Unixsock();
+
+{ # main
+       my $path = $ARGV[0] || "/var/run/collectd-unixsock";
+       my $sock = Collectd::Unixsock->new($path);
+
+       if (! $sock) {
+               print STDERR "Unable to connect to $path!\n";
+               exit 1;
+       }
+
+       print "cussh version 0.1, Copyright (C) 2007 Sebastian Harl\n"
+               . "cussh comes with ABSOLUTELY NO WARRANTY. This is free software,\n"
+               . "and you are welcome to redistribute it under certain conditions.\n"
+               . "See the GNU General Public License 2 for more details.\n\n";
+
+       while (1) {
+               print "cussh> ";
+               my $line = <STDIN>;
+
+               last if ((! $line) || ($line =~ m/^quit$/i));
+
+               my ($cmd) = $line =~ m/^(\w+)\s+/;
+               $line = $';
+
+               next if (! $cmd);
+               $cmd = uc $cmd;
+
+               my $f = undef;
+               if ($cmd eq "PUTVAL") {
+                       $f = \&putval;
+               }
+               elsif ($cmd eq "GETVAL") {
+                       $f = \&getval;
+               }
+               else {
+                       print STDERR "ERROR: Unknown command $cmd!\n";
+                       next;
+               }
+
+               if (! $f->($sock, $line)) {
+                       print STDERR "ERROR: Command failed!\n";
+                       next;
+               }
+       }
+
+       $sock->destroy();
+       exit 0;
+}
+
+sub getid {
+       my $string = shift || return;
+
+       print $$string . $/;
+       my ($h, $p, $pi, $t, $ti) =
+               $$string =~ m/^(\w+)\/(\w+)(?:-(\w+))?\/(\w+)(?:-(\w+))?\s+/;
+       $$string = $';
+
+       return if ((! $h) || (! $p) || (! $t));
+
+       my %id = ();
+
+       ($id{'host'}, $id{'plugin'}, $id{'type'}) = ($h, $p, $t);
+
+       $id{'plugin_instance'} = $pi if ($pi);
+       $id{'type_instance'} = $ti if ($ti);
+       return \%id;
+}
+
+=head1 COMMANDS
+
+=over 4
+
+=item B<GETVAL> I<Identifier>
+
+=item B<PUTVAL> I<Identifier> I<Valuelist>
+
+These commands follow the exact same syntax as described in
+L<collectd-unixsock(5)>.
+
+=cut
+
+sub putval {
+       my $sock = shift || return;
+       my $line = shift || return;
+
+       my $id = getid(\$line);
+
+       return if (! $id);
+
+       my ($time, @values) = split m/:/, $line;
+       return $sock->putval(%$id, $time, \@values);
+}
+
+sub getval {
+       my $sock = shift || return;
+       my $line = shift || return;
+
+       my $id = getid(\$line);
+
+       return if (! $id);
+
+       my $vals = $sock->getval(%$id);
+
+       return if (! $vals);
+
+       foreach my $key (keys %$vals) {
+               print "\t$key: $vals->{$key}\n";
+       }
+       return 1;
+}
+
+=head1 SEE ALSO
+
+L<collectd(1)>, L<collectd-unisock(5)>
+
+=head1 AUTHOR
+
+Written by Sebastian Harl E<lt>sh@tokkee.orgE<gt>.
+
+B<collectd> has been written by Florian Forster and others.
+
+=head1 COPYRIGHT
+
+Copyright (C) 2007 Sebastian Harl.
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; only version 2 of the License is applicable.
+
+=cut
+
+# vim: set sw=4 ts=4 tw=78 noexpandtab :