diff --git a/lib/puppet/functions/bind/bind_check_hostname.rb b/lib/puppet/functions/bind/bind_check_hostname.rb
new file mode 100644
index 0000000..6b204f4
--- /dev/null
+++ b/lib/puppet/functions/bind/bind_check_hostname.rb
@@ -0,0 +1,67 @@
+# This is an autogenerated function, ported from the original legacy version.
+# It /should work/ as is, but will not have all the benefits of the modern
+# function API. You should see the function docs to learn how to add function
+# signatures for type safety and to document this function using puppet-strings.
+#
+# https://puppet.com/docs/puppet/latest/custom_functions_ruby.html
+#
+# ---- original file header ----
+#
+# bind_check_hostname.rb
+#
+# ---- original file header ----
+#
+# @summary
+#   Prepare checked string for *is_domain_name()* (from stdlib) by removing /^*.?/
+#if present. *is_domain_name()* doesn't want any wildcard, which makes sense in
+#most cases.
+#Usage: bind_check_hostname(hostname, type)
+#
+#
+Puppet::Functions.create_function(:'bind::bind_check_hostname') do
+  # @param arguments
+  #   The original array of arguments. Port this to individually managed params
+  #   to get the full benefit of the modern function API.
+  #
+  # @return [Data type]
+  #   Describe what the function returns here
+  #
+  dispatch :default_impl do
+    # Call the method named 'default_impl' when this is matched
+    # Port this to match individual params for better type safety
+    repeated_param 'Any', :arguments
+  end
+
+
+  def default_impl(*arguments)
+    
+
+    if (arguments.size != 2) then
+      raise(Puppet::ParseError, "bind_check_hostname(): Wrong number of arguments "+
+        "given #{arguments.size} for 2")
+    end
+
+    record = arguments[0]
+    type = arguments[1]
+
+    # Allows '@'
+    return true if record == '@'
+    
+    # All is allowed for SRV and TXT record types
+    return true if type == 'SRV'
+    return true if type == 'TXT'
+
+    # Allow wildcard only at the begining
+    # As we're calling stdlib's *is_domain_name()*
+    # which doesn't accept wildcards, we just clean it
+    # from the record, and pass this new string to
+    # *is_domain_name()*
+    domain = record.sub(/^\*\.?/, '')
+
+    # Nothing left to check, and is_domain_name fails empty
+    return true if domain == ''
+
+    return function_is_domain_name([domain])
+  
+  end
+end
diff --git a/spec/functions/bind_bind_check_hostname_spec.rb b/spec/functions/bind_bind_check_hostname_spec.rb
new file mode 100644
index 0000000..856cc23
--- /dev/null
+++ b/spec/functions/bind_bind_check_hostname_spec.rb
@@ -0,0 +1,41 @@
+require 'spec_helper'
+
+describe 'bind::bind_check_hostname' do
+  # without knowing details about the implementation, this is the only test
+  # case that we can autogenerate. You should add more examples below!
+  it { is_expected.not_to eq(nil) }
+
+#################################
+# Below are some example test cases. You may uncomment and modify them to match
+# your needs. Notice that they all expect the base error class of `StandardError`.
+# This is because the autogenerated function uses an untyped array for parameters
+# and relies on your implementation to do the validation. As you convert your
+# function to proper dispatches and typed signatures, you should change the
+# expected error of the argument validation examples to `ArgumentError`.
+#
+# Other error types you might encounter include
+#
+# * StandardError
+# * ArgumentError
+# * Puppet::ParseError
+#
+# Read more about writing function unit tests at https://rspec-puppet.com/documentation/functions/
+#
+#   it 'raises an error if called with no argument' do
+#     is_expected.to run.with_params.and_raise_error(StandardError)
+#   end
+#
+#   it 'raises an error if there is more than 1 arguments' do
+#     is_expected.to run.with_params({ 'foo' => 1 }, 'bar' => 2).and_raise_error(StandardError)
+#   end
+#
+#   it 'raises an error if argument is not the proper type' do
+#     is_expected.to run.with_params('foo').and_raise_error(StandardError)
+#   end
+#
+#   it 'returns the proper output' do
+#     is_expected.to run.with_params(123).and_return('the expected output')
+#   end
+#################################
+
+end