From 7d6b92ccf06dcc202ed344ec3068cda02165142a Mon Sep 17 00:00:00 2001
From: Steve Kemp <steve@steve.org.uk>
Date: Wed, 14 Nov 2012 17:29:55 +0000
Subject:   Split the implementation of the multi-ping tool into a library and
 a driver.

---
 lib/custodian/multiping.rb | 94 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 lib/custodian/multiping.rb

(limited to 'lib')

diff --git a/lib/custodian/multiping.rb b/lib/custodian/multiping.rb
new file mode 100644
index 0000000..adb246e
--- /dev/null
+++ b/lib/custodian/multiping.rb
@@ -0,0 +1,94 @@
+
+require 'getoptlong'
+require 'socket'
+
+
+
+class MultiPing
+
+  #
+  # The hostname we'll ping, and the resolved address.
+  #
+  attr_reader :hostname, :resolved
+
+  def initialize( hostname )
+    @hostname = hostname
+    @resolved = resolve_hostname( hostname )
+  end
+
+
+  #
+  #
+  #
+  def resolve_hostname( hostname )
+    res = nil
+
+    begin
+      Socket.getaddrinfo(hostname, 'echo').each do |a|
+       res = a[3]
+      end
+    rescue SocketError
+    end
+
+    res
+  end
+
+
+
+  #
+  # Return the resolved address
+  #
+  def address
+    @resolved
+  end
+
+
+
+  #
+  # Does the hostname resolve to an IPv4 address?
+  #
+  def is_ipv4?
+    if ( ( ! @resolved.nil? ) && ( @resolved =~  /^([0-9]+).([0-9]+).([0-9]+).([0-9]+)$/ ) )
+      true
+    else
+      false
+    end
+  end
+
+
+  #
+  # Does the hostname resolve to an IPv6 address?
+  #
+  def is_ipv6?
+    if ( ( ! @resolved.nil? ) && ( @resolved =~  /^2001/ ) )
+      true
+    else
+      false
+    end
+  end
+
+
+
+  #
+  # Run the ping - if it succeeds return "true".
+  #
+  # Return false on error.
+  #
+  def run_ping
+    if ( is_ipv6? )
+      if ( system( "ping6 -c 1 #{@resolved} 2>/dev/null >/dev/null" ) == true )
+        return true
+      end
+    elsif( is_ipv4? )
+      if ( system( "ping -c 1 #{@resolved} 2>/dev/null >/dev/null" ) == true )
+        return true
+      end
+    else
+      puts "ERROR: Resolved to neither an IPv6 or IPv4 address."
+    end
+    return false
+  end
+
+
+end
+
-- 
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