Extract read_ber_id

Author: mtodd

lib/net/ber/ber_parser.rb

@@ -157,7 +157,7 @@ def read_ber(syntax = nil)
     # from streams that don't block when we ask for more data (like
     # StringIOs). At it is, this can throw TypeErrors and other nasties.
 
-    id = getbyte or return nil  # don't trash this value, we'll use it later
+    id = read_ber_id or return nil  # don't trash this value, we'll use it later
     content_length = read_ber_length
 
     yield id, content_length if block_given?
@@ -170,4 +170,9 @@ def read_ber(syntax = nil)
 
     parse_ber_object(syntax, id, data)
   end
+
+  # Internal: Returns the BER message ID or nil.
+  def read_ber_id
+    getbyte
+  end
 end