How to set credential to ldap_gssapi_bind_s?

Hello,

I try to bind to LDAP server using GSSAPI. I try to use ldap_gssapi_bind_s method (gssapi.c):

int ldap_gssapi_bind_s( LDAP *ld, LDAP_CONST char *dn, LDAP_CONST char *creds ) { if ( dn != NULL ) { return LDAP_NOT_SUPPORTED; }

if ( creds != NULL ) { return LDAP_NOT_SUPPORTED; }

return ldap_int_gss_spnego_bind_s(ld); }

According this it is executed only if 'dn' and 'creds' is NULL. My question is how can I set the user name and password which I want to authenticate on LDAP server?

Regards, Arpad