Fix rfx2696 cookie, it should use the to_ber_bin method because to_be…

…r will try to encode to UTF-8 first and break the cookie's representation of binary data

lib/net/ldap/connection.rb

@@ -379,7 +379,7 @@ def search(args = nil)
     # searches when the size limit is larger than 126. We're going to have
     # to do a root-DSE record search and not do a paged search if the LDAP
     # doesn't support it. Yuck.
-    rfc2696_cookie = [126, ""]
+    rfc2696_cookie = [126.to_ber, "".to_ber_bin]
     result_pdu = nil
     n_results = 0
 
@@ -428,7 +428,7 @@ def search(args = nil)
             Net::LDAP::LDAPControls::PAGED_RESULTS.to_ber,
             # Criticality MUST be false to interoperate with normal LDAPs.
             false.to_ber,
-            rfc2696_cookie.map(&:to_ber).to_ber_sequence.to_s.to_ber,
+            [rfc2696_cookie[0].to_ber, rfc2696_cookie[1].to_ber_bin].to_ber_sequence.to_s.to_ber,
           ].to_ber_sequence if paged
         controls << ber_sort if ber_sort
         controls = controls.empty? ? nil : controls.to_ber_contextspecific(0)
@@ -494,7 +494,7 @@ def search(args = nil)
               if c.value and c.value.length > 0
                 cookie = c.value.read_ber[1]
                 if cookie and cookie.length > 0
-                  rfc2696_cookie[1] = cookie
+                  rfc2696_cookie[1] = cookie.to_ber_bin
                   more_pages = true
                 end
               end