- ret = be->be_id2entry_get( be, ctxcsn_id, &ctxcsn_e );
- if ( ret == LDAP_SUCCESS ) {
- attr = attr_find( ctxcsn_e->e_attrs,
- slap_schema.si_ad_contextCSN );
- value_match( &match, slap_schema.si_ad_entryCSN,
- slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
- SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
- &maxcsn, &attr->a_nvals[0], &text );
- if ( match > 0 ) {
- AC_MEMCPY( attr->a_vals[0].bv_val, maxcsn.bv_val, maxcsn.bv_len );
- attr->a_vals[0].bv_val[maxcsn.bv_len] = '\0';
- attr->a_vals[0].bv_len = maxcsn.bv_len;
-
- ctxcsn_id = be->be_entry_modify( be, ctxcsn_e, &bvtext );
+ ctxcsn_e = be->be_entry_get( be, ctxcsn_id );
+ if ( ctxcsn_e != NULL ) {
+ Entry *e = entry_dup( ctxcsn_e );
+ int change;
+ attr = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
+ if ( attr ) {
+ int i;
+
+ change = 0;
+
+ for ( i = 0; !BER_BVISNULL( &attr->a_nvals[ i ] ); i++ ) {
+ int rc_sid;
+
+ rc_sid = slap_parse_csn_sid( &attr->a_nvals[ i ] );
+ if ( rc_sid < 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "%s: unable to extract SID "
+ "from #%d contextCSN=%s\n",
+ progname, i,
+ attr->a_nvals[ i ].bv_val );
+ continue;
+ }
+
+ assert( rc_sid <= SLAP_SYNC_SID_MAX );
+
+ sid = (unsigned)rc_sid;
+
+ if ( maxcsn[ sid ].bv_len == 0 ) {
+ match = -1;
+
+ } else {
+ value_match( &match, slap_schema.si_ad_entryCSN,
+ slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
+ SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
+ &maxcsn[ sid ], &attr->a_nvals[i], &text );
+ }
+
+ if ( match > 0 ) {
+ change = 1;
+ } else {
+ AC_MEMCPY( maxcsn[ sid ].bv_val,
+ attr->a_nvals[ i ].bv_val,
+ attr->a_nvals[ i ].bv_len );
+ maxcsn[ sid ].bv_val[ attr->a_nvals[ i ].bv_len ] = '\0';
+ maxcsn[ sid ].bv_len = attr->a_nvals[ i ].bv_len;
+ }
+ }
+
+ if ( change ) {
+ if ( attr->a_nvals != attr->a_vals ) {
+ ber_bvarray_free( attr->a_nvals );
+ }
+ attr->a_nvals = NULL;
+ ber_bvarray_free( attr->a_vals );
+ attr->a_vals = NULL;
+ attr->a_numvals = 0;
+ }
+ } else {
+ change = 1;
+ }
+
+ if ( change ) {
+ for ( sid = 0; sid <= SLAP_SYNC_SID_MAX; sid++ ) {
+ if ( maxcsn[ sid ].bv_len ) {
+ attr_merge_one( e, slap_schema.si_ad_contextCSN,
+ &maxcsn[ sid], NULL );
+ }
+ }
+
+ ctxcsn_id = be->be_entry_modify( be, e, &bvtext );