multiping

#!/bin/sh

: << =cut

=head1 NAME

multiping - Plugin to monitor ping times against several hosts

=head1 CONFIGURATION

The following environment variables are used

 ping_args  - Arguments to ping (default "-c 2")
 ping_args2 - Arguments after the host name (required for Solaris)
 ping       - Ping program to use
 host       - Host to ping

Configuration example

 [multiping]
  env.host www.example.org mail.example.org

Configuration example for Solaris

 [multiping]
  env.host www.example.org mail.example.org
  env.ping_args -s
  env.ping_args2 56 2

=head1 AUTHOR

Copyright (C) 2004 Jimmy Olsen

=head1 LICENSE

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; version 2 dated June,
1991.

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 Street, Fifth Floor, Boston, MA 02110-1301 USA.

=head1 MAGIC MARKERS

 #%# family=manual

=cut


host=${host:-www.google.com}


site=0
if [ "$1" = "config" ]; then
    echo graph_title Ping times
    echo 'graph_args --base 1000 -l 0'
    echo 'graph_vlabel seconds'
    echo 'graph_category network'
    echo 'graph_info This graph shows ping RTT statistics.'
    for hosts in $host; do
        site=$((site + 1))
	echo "site$site.label $hosts"
	echo "site$site.info Ping RTT statistics for $hosts."
	echo "site$site.draw LINE2"
	echo "site${site}_packetloss.label $hosts packet loss"
	echo "site${site}_packetloss.graph no"
    done
    exit 0
fi

for hosts in $host
do
    export site=$((site + 1))
    # shellcheck disable=SC2086
    "${ping:-ping}" ${ping_args:-'-c 2'} ${hosts} ${ping_args2:-} \
        | perl -n -e 'print "site$ENV{site}.value ", $1 / 1000, "\n"
            if m@min/avg/max.*\s\d+(?:\.\d+)?/(\d+(?:\.\d+)?)/\d+(?:\.\d+)?@;
            print "site$ENV{site}_packetloss.value $1\n" if /(\d+)% packet loss/;'
done