samba - Jun 2007 - Help for ber_printf(ber, "N}" in pdb_ldap.c

Hello,

When the option "ldap passwd sync = yes" was used in smb.conf, we got
an
error with "Unknown format" on ber_prinf(ber, "N}" in
passdb/pdb_ldap.c
for Netscape LDAP SDK. This would block password change. By checking
Openldap manpage at
http://www.openldap.org/software/man.cgi?query=ber_printf&apropos=0&sekt
ion=0&manpath=OpenLDAP+2.3-Release&format=html, I didn't see the
definition of the "N" format character either. I only saw the lower
case
format character "n"(Null). Therefore, I'd like to know what is
the
meaning of the encoding format character "N".  

 ber_printf( ber, "N}" );

Could somebody run into the problem, or can help me?

Thanks in advance.
-Ying

On Mon, Jun 04, 2007 at 09:14:24PM -0000, Li, Ying (ESG)
wrote:
> definition of the "N" format character either. I only saw the
lower case
> format character "n"(Null). Therefore, I'd like to know what
is the
> meaning of the encoding format character "N".  
> 
>  ber_printf( ber, "N}" );
> 
> Could somebody run into the problem, or can help me?
From encode.c:

/* N tag */
static ber_tag_t lber_int_null = 0;

....

                case 'n':       /* null */
                        rc = ber_put_null( ber, ber->ber_tag);
                        break;

                case 'N':       /* Debug NULL */
                        if( lber_int_null != 0 ) {
                                /* Insert NULL to ensure * peer ignores unknown
tags */
                                rc = ber_put_null( ber, lber_int_null );
                        } else {
                                rc = 0;
                        }
                        break;

So it seems this is just something to confuse readers in
this case...

Volker
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