Avoid shutdown problems

[openldap] / servers / slapd / modrdn.c

diff --git a/servers/slapd/modrdn.c b/servers/slapd/modrdn.c
index 3aae6ac4448c7733197577d195e6069ab2d196e9..e386ef944c8ae74fc08355ad93ad6b8a2cf1fc42 100644 (file)
--- a/servers/slapd/modrdn.c
+++ b/servers/slapd/modrdn.c
@@ -1,7 +1,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 1998-2007 The OpenLDAP Foundation.
+ * Copyright 1998-2009 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -214,9 +214,9 @@ cleanup:
 int
 fe_op_modrdn( Operation *op, SlapReply *rs )
 {
-       Backend         *newSuperior_be = NULL;
-       struct berval   pdn = BER_BVNULL;
+       struct berval   dest_ndn = BER_BVNULL, dest_pndn, pdn = BER_BVNULL;
        BackendDB       *op_be, *bd = op->o_bd;
+       ber_slen_t      diff;
        
        if( op->o_req_ndn.bv_len == 0 ) {
                Debug( LDAP_DEBUG_ANY, "%s do_modrdn: root dse!\n",
@@ -234,6 +234,23 @@ fe_op_modrdn( Operation *op, SlapReply *rs )
                goto cleanup;
        }
 
+       if( op->orr_nnewSup ) {
+               dest_pndn = *op->orr_nnewSup;
+       } else {
+               dnParent( &op->o_req_ndn, &dest_pndn );
+       }
+       build_new_dn( &dest_ndn, &dest_pndn, &op->orr_nnewrdn, op->o_tmpmemctx );
+
+       diff = (ber_slen_t) dest_ndn.bv_len - (ber_slen_t) op->o_req_ndn.bv_len;
+       if ( diff > 0 ? dnIsSuffix( &dest_ndn, &op->o_req_ndn )
+               : diff < 0 && dnIsSuffix( &op->o_req_ndn, &dest_ndn ) )
+       {
+               send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
+                       diff > 0 ? "cannot place an entry below itself"
+                       : "cannot place an entry above itself" );
+               goto cleanup;
+       }
+
        /*
         * We could be serving multiple database backends.  Select the
         * appropriate one, or send a referral to our "referral server"
@@ -275,19 +292,11 @@ fe_op_modrdn( Operation *op, SlapReply *rs )
                goto cleanup;
        }
 
-       /* Make sure that the entry being changed and the newSuperior are in 
-        * the same backend, otherwise we return an error.
-        */
-       if( op->orr_newSup ) {
-               newSuperior_be = select_backend( op->orr_nnewSup, 0 );
-
-               if ( newSuperior_be != op->o_bd ) {
-                       /* newSuperior is in different backend */
+       /* check that destination DN is in the same backend as source DN */
+       if ( select_backend( &dest_ndn, 0 ) != op->o_bd ) {
                        send_ldap_error( op, rs, LDAP_AFFECTS_MULTIPLE_DSAS,
                                "cannot rename between DSAs" );
-
                        goto cleanup;
-               }
        }
 
        /*
@@ -367,6 +376,8 @@ fe_op_modrdn( Operation *op, SlapReply *rs )
        }
 
 cleanup:;
+       if ( dest_ndn.bv_val != NULL )
+               ber_memfree_x( dest_ndn.bv_val, op->o_tmpmemctx );
        op->o_bd = bd;
        return rs->sr_err;
 }
@@ -428,6 +439,7 @@ slap_modrdn2mods(
                mod_tmp = ( Modifications * )ch_malloc( sizeof( Modifications ) );
                mod_tmp->sml_desc = desc;
                BER_BVZERO( &mod_tmp->sml_type );
+               mod_tmp->sml_numvals = 1;
                mod_tmp->sml_values = ( BerVarray )ch_malloc( 2 * sizeof( struct berval ) );
                ber_dupbv( &mod_tmp->sml_values[0], &new_rdn[a_cnt]->la_value );
                mod_tmp->sml_values[1].bv_val = NULL;
@@ -469,6 +481,7 @@ slap_modrdn2mods(
                        mod_tmp = ( Modifications * )ch_malloc( sizeof( Modifications ) );
                        mod_tmp->sml_desc = desc;
                        BER_BVZERO( &mod_tmp->sml_type );
+                       mod_tmp->sml_numvals = 1;
                        mod_tmp->sml_values = ( BerVarray )ch_malloc( 2 * sizeof( struct berval ) );
                        ber_dupbv( &mod_tmp->sml_values[0], &old_rdn[d_cnt]->la_value );
                        mod_tmp->sml_values[1].bv_val = NULL;