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|
#!/usr/bin/ruby
#
# Given a hostname, or IP address, run a ping test against it.
#
# This tool looks up the IP address to determine whether to run the
# test with "ping" or "ping6".
#
# Steve
# --
#
require 'socket'
#
# Get the address to ping.
#
hostname = ARGV.shift
#
# If we have no host then abort
#
if ( hostname.nil? )
puts "Usage: #{$0} hostname"
exit 1
end
#
# The IP we'll deal with
#
ip = nil
#
# Lookup the IP, catching any exception
#
begin
Socket.getaddrinfo(hostname, 'echo').each do |a|
ip = a[3]
end
rescue SocketError
puts "Failed to resolve: #{hostname}"
exit 1
end
#
# Was the result an IPv4 address?
#
if ( ip =~ /^([0-9]+).([0-9]+).([0-9]+).([0-9]+)$/ )
#
# If so invoke "ping"
#
if ( system( "ping -c 1 #{ip} 2>/dev/null >/dev/null" ) == true )
puts "#{hostname} alive."
exit 0
else
puts "ping4 failed - #{hostname} [#{ip}]"
exit 1
end
elsif ( ip =~ /2001/ )
#
# Was the result an IPv6 address?
#
if ( system( "ping6 -c 1 -w1 #{ip} 2>/dev/null >/dev/null" ) == true )
puts "#{hostname} alive."
exit 0
else
puts "ping6 failed - #{hostname} [#{ip}]"
exit 1
end
end
#
# All done.
#
|
