parsing output from ldap_search_ext_s C API

[sim123 <Sim3159@gmail.com>]

Hi All,

I am using ldap_search_ext_s C API and having strange results, not sure if I am missing something or its an API bug:

My Directory Tree looks like this:

| -- dc=example,dc=com
| ------ ou=users,dc=example,dc=com
| ---------- uid=1,ou=users,dc=example,dc=com
| --------------- cn=john
| ------ ou=departments,dc=example,dc=com
| ---------- uid=11,ou=departments,dc=example,dc=com
| --------------- cn=hr
| --------------- member=uid=1
| ---------- uid=12,ou=departments,dc=example,dc=com
| --------------- cn=sales
| --------------- member=uid=1
| ---------- uid=13,ou=departments,dc=example,dc=com
| --------------- cn=marketing
| --------------- member=uid=1

First I get all the departments for "john" by using memberof in sarch attribute. for this query my search filter contains only one criteria ("uid=1")
Then I construct another search filter for getting names of all the departments john belongs to : (|(uid=11)(uid=12)(uid=13))
I pass this filter to ldap_search_ext_s, where base is "ou=departments,dc=example,dc=com", scope is one level down, and I want "cn" in the attribute

LDAPMessage* output;
int retCode = ldap_search_ext_s(ld,base.c_str(),
            scope,filter.c_str(),attrs,false,NULL,NULL,NULL,0,&output);
if(retCode == LDAP_SUCCESS){
    //log success
    //send result to a static method for parsing
    LDAPUtil::parseResult(ld,output,result);
    ldap_msgfree(output);
}else{
       //log error & throw exception
    }

LDAPUtil parse result implementation

void LDAPUtil::parseResult(LDAP* ld, LDAPMessage* ldapResponse, LDAPSearchResult* parsedResult){

    int numEntries = ldap_count_entries(ld,ldapResponse);
    cout << "number of entries" << numEntries << endl; // I get 3 here
    if(numEntries > 0){
        //parse result
        LDAPMessage * entry;
        BerElement * ber;
        char * attr;
        BerVarray* vals ;
        map<string,LDAPAttribute*> attributeValueMap ;
        int count = 0;
        //If I don't use count < numEntries this loop becomes an infinite loop, this loop runs 3 times, however the dn value output is:
// run 1 :: dn: uid=11,ou=departments,dc=examples,dc=com
//run 2 ::  dn: uid=12,ou=departments,dc=examples,dc=com
// run 3 ::  dn: uid=12,ou=departments,dc=examples,dc=com

        for ( entry = ldap_first_entry(ld,ldapResponse);entry != NULL && count < numEntries;
                entry = ldap_next_entry(ld,ldapResponse)){
            count++;

                //create LDAP Attributes
                LDAPAttribute* attribute = new LDAPAttribute();
                //set DN
                attribute->setDn(ldap_get_dn(ld,entry));
                cout << "dn is " << ldap_get_dn(ld,entry) <<endl;

                for(attr = ldap_first_attribute(ld,entry,&ber);
                        attr != NULL; attr=ldap_next_attribute(ld,entry,ber))
                {
                    string temp = attr;
                    cout << "attribute :: " << attr  << endl;
                    vals = ldap_get_values_len(ld,entry,attr);
                    if((ldap_count_values_len(vals))> 0 ){
                        LDAPUtil::processAttribute(attribute,temp,vals);
                    }
                    ldap_value_free_len(vals);
                }
            attributeValueMap.insert(pair<string,LDAPAttribute*>(attribute->getDn(),attribute));
            }
        parsedResult->setAttributeValueMap(attributeValueMap);
        }
}

Basically above code is working only if I have one entry returned in the output. I would really appreciate if someone can help me with this. As I have hard time beliving its an API bug since I am just doing basic operation. 

Thanks,
- Simon