lualdap doesn't work

[evanchaoli]

I'm trying to use lualdap, but it doesn't work for me. My code is as below:

require 'lualdap'

ld = lualdap.open_simple("my-ldap-server", "user", "pass")
if ld == nil then
  print("LDAP not connected!")
  return 1
end

for dn, attribs in ld:search { base = "dc=mycompany,dc=com" } do
  print (string.format ("\t[%s]\n", dn))
  for name, values in pairs (attribs) do
    io.write ("["..name.."] : ")
    if type (values) == "string" then
      io.write (values)
    elseif type (values) == "table" then
      local n = table.getn(values)
      for i = 1, (n-1) do
        io.write (values[i]..",")
      end
      io.write (values[n])
    end
    io.write ("\n")
  end
end
ld:close()
print("Done!!")

In the meantime, if I use ldapsearch to do same search:

$ ldapsearch -D user -w pass -h my-ldap-server -b 'dc=mycompany,dc=com'

the ldapsearch command works, returning LDAP records.

Why's wrong with my code?