+ BackendPtr b = create_backend_from_databases(databases, error_code,
+ addinfo);
+ if (!b)
+ return b;
+ Package init_package(b->m_backend_session, package.origin());
+ init_package.copy_filter(package);
+
+ mp::odr odr;
+
+ Z_APDU *init_apdu = zget_APDU(odr, Z_APDU_initRequest);
+
+ mp::util::set_vhost_otherinfo(&init_apdu->u.initRequest->otherInfo, odr,
+ b->m_targets);
+ Z_InitRequest *req = init_apdu->u.initRequest;
+
+ // copy stuff from Frontend Init Request
+ Z_GDU *org_gdu = m_init_gdu.get();
+ Z_InitRequest *org_init = org_gdu->u.z3950->u.initRequest;
+
+ req->idAuthentication = org_init->idAuthentication;
+ req->implementationId = org_init->implementationId;
+ req->implementationName = org_init->implementationName;
+ req->implementationVersion = org_init->implementationVersion;
+ *req->preferredMessageSize = *org_init->preferredMessageSize;
+ *req->maximumRecordSize = *org_init->maximumRecordSize;
+
+ ODR_MASK_SET(req->options, Z_Options_search);
+ ODR_MASK_SET(req->options, Z_Options_present);
+ ODR_MASK_SET(req->options, Z_Options_namedResultSets);
+ ODR_MASK_SET(req->options, Z_Options_scan);
+
+ ODR_MASK_SET(req->protocolVersion, Z_ProtocolVersion_1);
+ ODR_MASK_SET(req->protocolVersion, Z_ProtocolVersion_2);
+ ODR_MASK_SET(req->protocolVersion, Z_ProtocolVersion_3);
+
+ init_package.request() = init_apdu;
+
+ init_package.move(b->m_route); // sending init
+
+ Z_GDU *gdu = init_package.response().get();
+ // we hope to get an init response
+ error_code = 0;
+ if (gdu && gdu->which == Z_GDU_Z3950
+ && gdu->u.z3950->which == Z_APDU_initResponse)
+ {
+ Z_InitResponse *res = gdu->u.z3950->u.initResponse;
+ if (ODR_MASK_GET(res->options, Z_Options_namedResultSets))
+ {
+ b->m_named_result_sets = true;
+ }
+ if (*res->result && !init_package.session().is_closed())
+ {
+ m_backend_list.push_back(b);
+ return b;
+ }
+ mp::util::get_init_diagnostics(res, error_code, addinfo);
+ }
+ if (error_code == 0)
+ {
+ std::list<std::string>::const_iterator db_it = databases.begin();
+ error_code = YAZ_BIB1_ACCESS_TO_SPECIFIED_DATABASE_DENIED;
+ if (db_it != databases.end())
+ addinfo = *db_it;
+ }
+ if (!init_package.session().is_closed())
+ {
+ Package close_package(b->m_backend_session, package.origin());
+ close_package.copy_filter(package);
+ close_package.session().close();
+ close_package.move(b->m_route); // closing it
+ }
+ BackendPtr null;
+ return null;