If you want to check if the DN is the suffix of the local database, call the slapi_dn_beparent() function instead.
Syntax
#include "slapi-plugin.h" char *slapi_dn_parent( char *dn ); Parameters
#include "slapi-plugin.h" char *slapi_dn_parent( char *dn );
The function has the following parameters:
dn
Returns
DN of the parent entry, or NULL if the specified DN is NULL, if the DN is an empty string, or if the DN has no parent (for example, o=Airius.com).