LDAP in C++

Hi,
I have PERL code for LDAP that take userid and password...and authenticate the user. Now I want to make the C++ code for the same. How can I make that?
Perl code:
#!usr/local/bin/perl      
use  Net::LDAP;
use Term::ReadKey;

$user= "";
$password= "";



print " Enter Username: ";
$user =<STDIN>;
chop($user);

print " Enter Password: ";
ReadMode('noecho');
$password = <STDIN>;
chop($password);
ReadMode('normal');


$LDAP_HOST            = 'ids.gm.com';
$LDAP_PORT            = 389;
$LDAP_BASE_DN             = 'ou=people,ou=intranet,dc=gm,dc=com';
$LDAP_USER_ATTRIBUTE      = 'gmguid';
$TRUE = 1;

# See if the Password is NULL
if(length($password)==0)
      {
      print "\nPassword field is left EMPTY.\n";
      }

#Establish a connection to the LDAP Server
my $ldap = new Net::LDAP($LDAP_HOST, port=>$LDAP_PORT, onerror=>'undef');
if(!$ldap)
      {
      # If the Connection is unsuccessful      
      print "\nConnection to LDAP Server is UNSUCCESFUL.\n";    
      }

#Validate the User ID and Get its Distinguished Name
my $dn = $LDAP_USER_ATTRIBUTE . '=' . $user . ',' . $LDAP_BASE_DN;
if(!$dn)
      {    
      # No Entry exists that matches $USERDN      
      print "\nInvalid USERID.\n";    
      }  

#Authenticate the User       
if (defined($ldap->bind($dn, password=>$password)))
      {
      print "\nUSER is AUTHINTICATED.\n";
      }
else
      {
      print "\nInvalid PASSWORD.\n";
      }
$ldap->unbind();