Re: Question regarding Search when BASE=NULL

["Kurt D. Zeilenga" <Kurt@OpenLDAP.org>]

When you specify a search base of NULL, the OpenLDAP
client library will use the base DN specified using
ldap.conf(5) or, if not specified, "" (root DSE).

At 09:21 PM 9/16/2004, Bhishm Sharma wrote:
>Hi,
>
>I tried to write a search program using C pasted in
>the end of the mail. What I intended is that I just
>pass the IP and read the server DN using the response
>message.
>
>Here are the scenarios and result:
>i) Tried to connect to AD (Active Directory)using Prog
>Search Results: 
>- Referral is returned when openldap server is not
>running on local machine. DOn't Know why?
>- Local LDAP servers DN is returned when openldap is
>running on local machine. DOn't Know why?
>
>ii) Tried to connect another LDAP Server running
>OpenLDAP
>Search Result:
>- No such Object
>
>
>Please guide me or show me the path how to move
>forward. Why the above behavior is coming and how to
>handle the referral or "No such object" to move
>forward.
>
>
>Few things to note in the code: 
>i) Anonymous Bind
>ii) In ldap_search_s, I am passing Base as NULL i.e.
>ldap_search_s(ld,NULL,LDAP_SCOPE_SUBTREE,"objectClass=*",NULL,0,&resul)
>
>When I am using the "ldapsearch" command its working
>fine. I didn't pass the Base and it shows me the entry
>but when I am using the search API's I don't know how
>to do it.
>
>
>CODE SNIPPET:
>-----------
>
>protocolVersion= LDAP_VERSION3;
>
>
>if((result=ldap_set_option(ld,LDAP_OPT_REFERRALS,LDAP_OPT_OFF))==
>-1)
>{
>        printf("%s\n",ldap_err2string(result));
>        return(2);      
>}
>printf("Successfully set referrals\n");
>
>result =
>ldap_set_option(ld,LDAP_OPT_PROTOCOL_VERSION,&protocolVersion);
>
>printf("Verison: %d\n",LDAP_VERSION3);
>
>//BIND OPERATION
>if((result=ldap_simple_bind_s(ld,NULL,NULL))!=LDAP_SUCCESS)
>{
>        printf("Error in ldap_simple_bind_s:-
>%s\n",ldap_err2string(result));
>        return(2);
>}
>printf("LDAP Result:- %s\n",ldap_err2string(result));
>
>//Search Through the tree
>if((result=ldap_search_s(ld,NULL,LDAP_SCOPE_SUBTREE,"objectClass=*",NULL,0,&resul))!=LDAP_SUCCESS)
>{
>        printf("lDAP Search:- %s\n",ldap_err2string(result));
>//      result =
>ber_printf(ber,"t{V}",LDAP_TAG_REFERRAL,resul);
>        printf("RESULT AGAIN:-
>%d\n",ldap_count_references(ld,resul));
>        if(result == LDAP_REFERRAL)
>        {
>                printf("REferral Returned\n");  
>        }
>//      return(2);
>}
>
>printf("LDAP Search Result:-
>%s\n",ldap_err2string(result));
>printf("Number of Entries Returned:-
>%d\n",ldap_count_entries(ld,resul));
>
>for(entry=ldap_first_entry(ld,resul);entry!=NULL;entry=ldap_next_entry(ld,entry))
>
>
>THANKS & REGARDS,
>BHISHM
>
>
>
>
>                
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