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netstat_bsd_m_
Sadly there is no documentation for this plugin.
#!/usr/bin/env ruby
=begin
netstat_bsd_m revision 1 (Feb 2012)
This plugin shows various statistics from 'netstat -m'
Required privileges: none
OS:
Supposed: BSD
Tested: FreeBSD 8.2
Author: Artem Sheremet <dot.doom@gmail.com>
#%# family=auto
#%# capabilities=autoconf suggest
=end
# original filename
PLUGIN_NAME = 'netstat_bsd_m_'.freeze
class String
def escape
gsub(/[^\w]/, '_')
end
unless method_defined? :start_with?
def start_with?(str)
self[0...str.size] == str
end
end
end
def netstat_m(filter = nil)
Hash[`netstat -m`.split($/).map do |line|
if line =~ %r{^([\d/K]+) (.*) \(([\w/+]+)\)$}
# 7891K/22385K/30276K bytes allocated to network (current/cache/total)
values = Regexp.last_match(1)
desc = Regexp.last_match(2)
names = Regexp.last_match(3)
[desc, names.split('/').zip(values.split('/'))] if filter.nil? || (desc.escape == filter)
elsif line =~ /^(\d+) (.*)$/
# 12327 requests for I/O initiated by sendfile
value = Regexp.last_match(1)
desc = Regexp.last_match(2)
[desc, [[:value, value]]] if filter.nil? || (desc.escape == filter)
end
end.compact]
end
stat_name = File.basename($0, '.*').escape
stat_name.slice! 0, PLUGIN_NAME.size if stat_name.start_with? PLUGIN_NAME
case ARGV.first
when 'autoconf'
puts `uname -s`.include?('FreeBSD') ? 'yes' : 'no'
when 'suggest'
puts netstat_m.keys.map(&:escape).join $/
when 'config'
data = netstat_m(stat_name)
if data.empty?
warn "no data for <#{stat_name}>. Try running with 'suggest'"
else
desc, values = data.first
stack = values.size > 1
first = true
puts <<~CONFIG
graph_title Netstat: #{desc}
graph_category network
graph_vlabel current
graph_order #{values.map { |name, _| name.to_s.escape }.join ' '}
CONFIG
puts values.map { |name, _|
esc_name = name.to_s.escape
"#{esc_name}.draw " + if %w[total max].include? name
'LINE'
elsif stack
if first
first = false
'AREA'
else
'STACK'
end
else
'LINE2'
end + "\n#{esc_name}.label #{name}"
}.join $/
end
when nil # fetch
data = netstat_m(stat_name)
unless data.empty?
puts data.first.last.map { |name, value|
value = value.to_i * 1024 if value.end_with? 'K'
"#{name.to_s.escape}.value #{value}"
}.join $/
end
else
warn "unrecognized argument <#{ARGV.first}>"
end