+static LDAP_SLIST_HEAD(OCUList, slap_object_class) oc_undef_list
+ = LDAP_SLIST_HEAD_INITIALIZER(&oc_undef_list);
+
+ObjectClass *
+oc_bvfind_undef( struct berval *ocname )
+{
+ ObjectClass *oc = oc_bvfind( ocname );
+
+ if ( oc ) {
+ return oc;
+ }
+
+ LDAP_SLIST_FOREACH( oc, &oc_undef_list, soc_next ) {
+ int d = oc->soc_cname.bv_len - ocname->bv_len;
+
+ if ( d ) {
+ continue;
+ }
+
+ if ( strcasecmp( oc->soc_cname.bv_val, ocname->bv_val ) == 0 ) {
+ break;
+ }
+ }
+
+ if ( oc ) {
+ return oc;
+ }
+
+ oc = ch_malloc( sizeof( ObjectClass ) + ocname->bv_len + 1 );
+ memset( oc, 0, sizeof( ObjectClass ) );
+
+ oc->soc_cname.bv_len = ocname->bv_len;
+ oc->soc_cname.bv_val = (char *)&oc[ 1 ];
+ AC_MEMCPY( oc->soc_cname.bv_val, ocname->bv_val, ocname->bv_len );
+
+ LDAP_SLIST_NEXT( oc, soc_next ) = NULL;
+ LDAP_SLIST_INSERT_HEAD( &oc_undef_list, oc, soc_next );
+
+ return oc;
+}
+