Method: NetworkScanner::Scanner#check_pings

Defined in:
lib/network_scanner.rb

#check_pings ⇒ Object

Raises:

  • (Exception) 


112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
 
# File 'lib/network_scanner.rb', line 112

def check_pings
  raise Exception.new("Must specify ips to check(interface/range/cache)") unless @ips_to_check

  @ips = []

  pool = Thread.pool(@pool_size)

  if self.output_name
    out = File.open(self.output_name, 'w')
  else
    out = STDOUT
  end

  @ips_to_check.each do |ip|
    pool.process do
      # For some reason &> isn't working, so pipe stdout and then stderr
      if system("ping -c 1 #{ip} >> /dev/null 2> /dev/null")
        @ips << ip
        if text?
          out.print "#{ip}\n"
        end
      end
    end
  end

  pool.shutdown

  if json?
    out.puts(JSON.pretty_generate(@ips))
  end

  out.close unless out == STDOUT

  return @ips
end