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authorSteve Kemp <steve@steve.org.uk>2012-11-22 06:42:07 +0000
committerSteve Kemp <steve@steve.org.uk>2012-11-22 06:42:07 +0000
commit6b777872b8d0ec8506ef90bc121eb70a8099db80 (patch)
tree7536362b6aa9c1f6c90c75d4b56b6533e73d7080 /lib/custodian/dnsutil.rb
parent2d0160537ebfacc391d395f7d1ac0a4e02543c74 (diff)
Renamed.
Diffstat (limited to 'lib/custodian/dnsutil.rb')
-rw-r--r--lib/custodian/dnsutil.rb72
1 files changed, 0 insertions, 72 deletions
diff --git a/lib/custodian/dnsutil.rb b/lib/custodian/dnsutil.rb
deleted file mode 100644
index e42d5e3..0000000
--- a/lib/custodian/dnsutil.rb
+++ /dev/null
@@ -1,72 +0,0 @@
-
-
-require 'ipaddr'
-require 'socket'
-require 'timeout'
-
-
-
-#
-# This class is responsible for doing forward/reverse DNS lookups
-#
-class DNSUtil
-
-
- #
- # Return the reverse DNS for the specified IP address, nil on failure.
- #
- def DNSUtil.ip_to_hostname( ip )
- resolved = nil
- begin
- timeout( 4 ) do
- begin
- Socket.getaddrinfo(ip, 'echo').each do |a|
- resolved = a[2] if ( a )
- end
- rescue SocketError
- resolved = nil
- end
- end
- rescue Timeout::Error => e
- resolved = nil
- end
- resolved
- end
-
-
- #
- # Convert a hostname to an IP address, return nil on failure.
- #
- def DNSUtil.hostname_to_ip( hostname )
-
- resolved = nil
-
- begin
- timeout( 4 ) do
- begin
- Socket.getaddrinfo(hostname, 'echo').each do |a|
- resolved = a[3] if ( a )
- end
- rescue SocketError
- resolved = nil
- end
- end
- rescue Timeout::Error => e
- resolved = nil
- end
- resolved
- end
-
-end
-
-
-if __FILE__ == $0 then
-
- %w( ssh.steve.org.uk ipv6.steve.org.uk ).each do |name|
- puts "Hostname test: #{name} #{DNSUtil.hostname_to_ip(name) }"
- end
-
- %w( 80.68.85.46 80.68.85.48 2001:41c8:125:46::22 ).each do |name|
- puts "Hostname test: #{name} #{DNSUtil.ip_to_hostname(name) }"
- end
-end