Re: How get more detailed error information than the provided by ldap_err2string?

[Werner M <wxxx333@gmail.com>]

On 08/03/2014, at 18:15, Howard Chu <hyc@symas.com> wrote:

> Werner - Google wrote:
>> Hi,
>> 
>> I've the sample code bellow, and when i intentionally put the wrong
>> credentials, i get from "ldap_err2string( rc ) the error message:
>> "Invalid credentials".
> 
> Read the ldap_get_option(3), ldap_bind(3), and ldap_result(3) manages.

Thx for the quick reply. 

I've read them many times, but I'm still unable to understand/find a way to use the ldap_result with "synchronous" function of bind/search.

If i understood the man pages correctly ldap_result is a companion to ldap_simple_bind/ldap_search_ext (asynchronous) . Is there a way of using it with the ldap_simple_bind_s()/ ldap_search_ext_s() functions? Or should/must i take the time and rewrite my entire code and find a way of doing things using the asynchronous functions?

i noted that i've not provided the library versions:
I'm on ubuntu, with :

$ slapd -V
@(#) $OpenLDAP: slapd  (Ubuntu) (Oct  8 2013 20:51:43) $
	buildd@akateko:/build/buildd/openldap-2.4.31/debian/build/servers/slapd

$ ldapsearch -VV
ldapsearch: @(#) $OpenLDAP: ldapsearch  (Ubuntu) (Oct  8 2013 20:50:56) $
	buildd@akateko:/build/buildd/openldap-2.4.31/debian/build/clients/tools
	(LDAP library: OpenLDAP 20431)


>> ---
>> sample code:
>> 
>> 
>> if ( (ld = (LDAP *)ldap_init( pHostName, iPortNum )) == NULL ) {
>> perror( "ldap_init failed. Reason?:" );
>> exit ( 1 );
>> }
>> 
>> if ( (rc=ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &version)) !=
>> LDAP_SUCCESS ){
>> fprintf( stderr, "ldap_set_option(LDAP_OPT_PROTOCOL_VERSION): %s\n",
>> ldap_err2string( rc ) );
>> exit( 1 );
>> }
>> 
>> if ( (rc=ldap_set_option(ld, LDAP_OPT_REFERRALS, LDAP_OPT_OFF)) != LDAP_SUCCESS){
>> fprintf( stderr, "ldap_set_option(LDAP_OPT_REFERRALS): %s\n", ldap_err2string(
>> rc ));
>> exit( 1 );
>> }
>> 
>> rc = ldap_simple_bind_s( ld, "auth_dn", "auth_pw" );
>> 
>> 
>> if ( rc != LDAP_SUCCESS ) {
>> fprintf( stderr, "ldap_simple_bind_s() Failed: %s [%d]\n",
>> ldap_err2string(rc), rc);
>> ldap_unbind_s(ld); /* try unbind the failed connection anyway */
>> exit ( 1 );
>> }
>> 
>> 
> 
> 
> -- 
>  -- Howard Chu
>  CTO, Symas Corp.           http://www.symas.com
>  Director, Highland Sun     http://highlandsun.com/hyc/
>  Chief Architect, OpenLDAP  http://www.openldap.org/project/