2 * Copyright (c) 1995-2002, Index Data
3 * See the file LICENSE for details.
5 * $Id: seshigh.c,v 1.126 2002-01-23 22:40:36 adam Exp $
9 * Frontend server logic.
11 * This code receives incoming APDUs, and handles client requests by means
14 * Some of the code is getting quite involved, compared to simpler servers -
15 * primarily because it is asynchronous both in the communication with
16 * the user and the backend. We think the complexity will pay off in
17 * the form of greater flexibility when more asynchronous facilities
20 * Memory management has become somewhat involved. In the simple case, where
21 * only one PDU is pending at a time, it will simply reuse the same memory,
22 * once it has found its working size. When we enable multiple concurrent
23 * operations, perhaps even with multiple parallel calls to the backend, it
24 * will maintain a pool of buffers for encoding and decoding, trying to
25 * minimize memory allocation/deallocation during normal operation.
38 #include <yaz/yconfig.h>
39 #include <yaz/xmalloc.h>
40 #include <yaz/comstack.h>
43 #include <yaz/proto.h>
46 #include <yaz/logrpn.h>
47 #include <yaz/statserv.h>
48 #include <yaz/diagbib1.h>
50 #include <yaz/backend.h>
52 static int process_request(association *assoc, request *req, char **msg);
53 void backend_response(IOCHAN i, int event);
54 static int process_response(association *assoc, request *req, Z_APDU *res);
55 static Z_APDU *process_initRequest(association *assoc, request *reqb);
56 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
58 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
59 bend_search_rr *bsrr, int *fd);
60 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
62 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
63 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
64 static void process_close(association *assoc, request *reqb);
65 void save_referenceId (request *reqb, Z_ReferenceId *refid);
66 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
68 static Z_APDU *process_segmentRequest (association *assoc, request *reqb);
70 static FILE *apduf = 0; /* for use in static mode */
71 static statserv_options_block *control_block = 0;
73 /* Chas: Added in from DALI */
74 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
75 /* Chas: End of addition from DALI */
78 * Create and initialize a new association-handle.
79 * channel : iochannel for the current line.
80 * link : communications channel.
81 * Returns: 0 or a new association handle.
83 association *create_association(IOCHAN channel, COMSTACK link)
88 control_block = statserv_getcontrol();
89 if (!(anew = (association *)xmalloc(sizeof(*anew))))
92 anew->client_chan = channel;
93 anew->client_link = link;
94 anew->cs_get_mask = 0;
95 anew->cs_put_mask = 0;
96 anew->cs_accept_mask = 0;
97 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
98 !(anew->encode = odr_createmem(ODR_ENCODE)))
100 if (*control_block->apdufile)
105 strcpy(filename, control_block->apdufile);
106 if (!(anew->print = odr_createmem(ODR_PRINT)))
108 if (*control_block->apdufile != '-')
110 strcpy(filename, control_block->apdufile);
111 if (!control_block->dynamic)
115 if (!(apduf = fopen(filename, "w")))
117 yaz_log(LOG_WARN|LOG_ERRNO, "%s", filename);
120 setvbuf(apduf, 0, _IONBF, 0);
126 sprintf(filename + strlen(filename), ".%d", getpid());
127 if (!(f = fopen(filename, "w")))
129 yaz_log(LOG_WARN|LOG_ERRNO, "%s", filename);
132 setvbuf(f, 0, _IONBF, 0);
134 odr_setprint(anew->print, f);
139 anew->input_buffer = 0;
140 anew->input_buffer_len = 0;
142 anew->state = ASSOC_NEW;
143 request_initq(&anew->incoming);
144 request_initq(&anew->outgoing);
145 anew->proto = cs_getproto(link);
150 * Free association and release resources.
152 void destroy_association(association *h)
154 statserv_options_block *cb = statserv_getcontrol();
157 odr_destroy(h->decode);
158 odr_destroy(h->encode);
160 odr_destroy(h->print);
162 xfree(h->input_buffer);
164 (*cb->bend_close)(h->backend);
165 while (request_deq(&h->incoming));
166 while (request_deq(&h->outgoing));
167 request_delq(&h->incoming);
168 request_delq(&h->outgoing);
170 if (control_block && control_block->one_shot)
174 static void do_close_req(association *a, int reason, char *message,
178 Z_Close *cls = zget_Close(a->encode);
180 /* Purge request queue */
181 while (request_deq(&a->incoming));
182 while (request_deq(&a->outgoing));
185 yaz_log(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
186 reason, message ? message : "none");
187 apdu.which = Z_APDU_close;
189 *cls->closeReason = reason;
190 cls->diagnosticInformation = message;
191 process_response(a, req, &apdu);
192 iochan_settimeout(a->client_chan, 60);
196 yaz_log(LOG_DEBUG, "v2 client. No Close PDU");
197 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
199 a->state = ASSOC_DEAD;
202 static void do_close(association *a, int reason, char *message)
204 do_close_req (a, reason, message, request_get(&a->outgoing));
208 * This is where PDUs from the client are read and the further
209 * processing is initiated. Flow of control moves down through the
210 * various process_* functions below, until the encoded result comes back up
211 * to the output handler in here.
213 * h : the I/O channel that has an outstanding event.
214 * event : the current outstanding event.
216 void ir_session(IOCHAN h, int event)
219 association *assoc = (association *)iochan_getdata(h);
220 COMSTACK conn = assoc->client_link;
223 assert(h && conn && assoc);
224 if (event == EVENT_TIMEOUT)
226 if (assoc->state != ASSOC_UP)
228 yaz_log(LOG_LOG, "Final timeout - closing connection.");
230 destroy_association(assoc);
235 yaz_log(LOG_LOG, "Session idle too long. Sending close.");
236 do_close(assoc, Z_Close_lackOfActivity, 0);
240 if (event & assoc->cs_accept_mask)
242 yaz_log (LOG_DEBUG, "ir_session (accept)");
243 if (!cs_accept (conn))
245 yaz_log (LOG_LOG, "accept failed");
246 destroy_association(assoc);
249 iochan_clearflag (h, EVENT_OUTPUT|EVENT_OUTPUT);
250 if (conn->io_pending)
251 { /* cs_accept didn't complete */
252 assoc->cs_accept_mask =
253 ((conn->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
254 ((conn->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
256 iochan_setflag (h, assoc->cs_accept_mask);
259 { /* cs_accept completed. Prepare for reading (cs_get) */
260 assoc->cs_accept_mask = 0;
261 assoc->cs_get_mask = EVENT_INPUT;
262 iochan_setflag (h, assoc->cs_get_mask);
266 if ((event & assoc->cs_get_mask) || (event & EVENT_WORK)) /* input */
268 if ((assoc->cs_put_mask & EVENT_INPUT) == 0 && (event & assoc->cs_get_mask))
270 yaz_log(LOG_DEBUG, "ir_session (input)");
271 /* We aren't speaking to this fellow */
272 if (assoc->state == ASSOC_DEAD)
274 yaz_log(LOG_LOG, "Closed connection after reject");
276 destroy_association(assoc);
280 assoc->cs_get_mask = EVENT_INPUT;
281 if ((res = cs_get(conn, &assoc->input_buffer,
282 &assoc->input_buffer_len)) <= 0)
284 yaz_log(LOG_LOG, "Connection closed by client");
286 destroy_association(assoc);
290 else if (res == 1) /* incomplete read - wait for more */
292 if (conn->io_pending & CS_WANT_WRITE)
293 assoc->cs_get_mask |= EVENT_OUTPUT;
294 iochan_setflag(h, assoc->cs_get_mask);
297 if (cs_more(conn)) /* more stuff - call us again later, please */
298 iochan_setevent(h, EVENT_INPUT);
300 /* we got a complete PDU. Let's decode it */
301 yaz_log(LOG_DEBUG, "Got PDU, %d bytes", res);
302 req = request_get(&assoc->incoming); /* get a new request structure */
303 odr_reset(assoc->decode);
304 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
305 if (!z_APDU(assoc->decode, &req->apdu_request, 0, 0))
307 yaz_log(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
308 odr_errmsg(odr_geterror(assoc->decode)),
309 odr_offset(assoc->decode));
310 yaz_log(LOG_LOG, "PDU dump:");
311 odr_dumpBER(yaz_log_file(), assoc->input_buffer, res);
312 do_close(assoc, Z_Close_protocolError, "Malformed package");
315 req->request_mem = odr_extract_mem(assoc->decode);
316 if (assoc->print && !z_APDU(assoc->print, &req->apdu_request, 0, 0))
318 yaz_log(LOG_WARN, "ODR print error: %s",
319 odr_errmsg(odr_geterror(assoc->print)));
320 odr_reset(assoc->print);
322 request_enq(&assoc->incoming, req);
325 /* can we do something yet? */
326 req = request_head(&assoc->incoming);
327 if (req->state == REQUEST_IDLE)
330 request_deq(&assoc->incoming);
331 if (process_request(assoc, req, &msg) < 0)
332 do_close_req(assoc, Z_Close_systemProblem, msg, req);
335 if (event & assoc->cs_put_mask)
337 request *req = request_head(&assoc->outgoing);
339 assoc->cs_put_mask = 0;
340 yaz_log(LOG_DEBUG, "ir_session (output)");
341 req->state = REQUEST_PENDING;
342 switch (res = cs_put(conn, req->response, req->len_response))
345 yaz_log(LOG_LOG, "Connection closed by client");
347 destroy_association(assoc);
350 case 0: /* all sent - release the request structure */
351 yaz_log(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
352 nmem_destroy(req->request_mem);
353 request_deq(&assoc->outgoing);
354 request_release(req);
355 if (!request_head(&assoc->outgoing))
356 { /* restore mask for cs_get operation ... */
357 iochan_clearflag(h, EVENT_OUTPUT|EVENT_INPUT);
358 iochan_setflag(h, assoc->cs_get_mask);
362 if (conn->io_pending & CS_WANT_WRITE)
363 assoc->cs_put_mask |= EVENT_OUTPUT;
364 if (conn->io_pending & CS_WANT_READ)
365 assoc->cs_put_mask |= EVENT_INPUT;
366 iochan_setflag(h, assoc->cs_put_mask);
369 if (event & EVENT_EXCEPT)
371 yaz_log(LOG_LOG, "ir_session (exception)");
373 destroy_association(assoc);
379 * Initiate request processing.
381 static int process_request(association *assoc, request *req, char **msg)
387 *msg = "Unknown Error";
388 assert(req && req->state == REQUEST_IDLE);
389 if (req->apdu_request->which != Z_APDU_initRequest && !assoc->init)
391 *msg = "Missing InitRequest";
394 switch (req->apdu_request->which)
396 case Z_APDU_initRequest:
397 res = process_initRequest(assoc, req); break;
398 case Z_APDU_searchRequest:
399 res = process_searchRequest(assoc, req, &fd); break;
400 case Z_APDU_presentRequest:
401 res = process_presentRequest(assoc, req, &fd); break;
402 case Z_APDU_scanRequest:
403 if (assoc->init->bend_scan)
404 res = process_scanRequest(assoc, req, &fd);
407 *msg = "Cannot handle Scan APDU";
411 case Z_APDU_extendedServicesRequest:
412 if (assoc->init->bend_esrequest)
413 res = process_ESRequest(assoc, req, &fd);
416 *msg = "Cannot handle Extended Services APDU";
420 case Z_APDU_sortRequest:
421 if (assoc->init->bend_sort)
422 res = process_sortRequest(assoc, req, &fd);
425 *msg = "Cannot handle Sort APDU";
430 process_close(assoc, req);
432 case Z_APDU_deleteResultSetRequest:
433 if (assoc->init->bend_delete)
434 res = process_deleteRequest(assoc, req, &fd);
437 *msg = "Cannot handle Delete APDU";
441 case Z_APDU_segmentRequest:
442 if (assoc->init->bend_segment)
444 res = process_segmentRequest (assoc, req);
448 *msg = "Cannot handle Segment APDU";
453 *msg = "Bad APDU received";
458 yaz_log(LOG_DEBUG, " result immediately available");
459 retval = process_response(assoc, req, res);
463 yaz_log(LOG_DEBUG, " result unavailble");
466 else /* no result yet - one will be provided later */
470 /* Set up an I/O handler for the fd supplied by the backend */
472 yaz_log(LOG_DEBUG, " establishing handler for result");
473 req->state = REQUEST_PENDING;
474 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
476 iochan_setdata(chan, assoc);
483 * Handle message from the backend.
485 void backend_response(IOCHAN i, int event)
487 association *assoc = (association *)iochan_getdata(i);
488 request *req = request_head(&assoc->incoming);
492 yaz_log(LOG_DEBUG, "backend_response");
493 assert(assoc && req && req->state != REQUEST_IDLE);
494 /* determine what it is we're waiting for */
495 switch (req->apdu_request->which)
497 case Z_APDU_searchRequest:
498 res = response_searchRequest(assoc, req, 0, &fd); break;
500 case Z_APDU_presentRequest:
501 res = response_presentRequest(assoc, req, 0, &fd); break;
502 case Z_APDU_scanRequest:
503 res = response_scanRequest(assoc, req, 0, &fd); break;
506 yaz_log(LOG_WARN, "Serious programmer's lapse or bug");
509 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
511 yaz_log(LOG_LOG, "Fatal error when talking to backend");
512 do_close(assoc, Z_Close_systemProblem, 0);
516 else if (!res) /* no result yet - try again later */
518 yaz_log(LOG_DEBUG, " no result yet");
519 iochan_setfd(i, fd); /* in case fd has changed */
524 * Encode response, and transfer the request structure to the outgoing queue.
526 static int process_response(association *assoc, request *req, Z_APDU *res)
528 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
530 if (assoc->print && !z_APDU(assoc->print, &res, 0, 0))
532 yaz_log(LOG_WARN, "ODR print error: %s",
533 odr_errmsg(odr_geterror(assoc->print)));
534 odr_reset(assoc->print);
536 if (!z_APDU(assoc->encode, &res, 0, 0))
538 yaz_log(LOG_WARN, "ODR error when encoding response: %s",
539 odr_errmsg(odr_geterror(assoc->decode)));
542 req->response = odr_getbuf(assoc->encode, &req->len_response,
543 &req->size_response);
544 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
545 odr_reset(assoc->encode);
546 req->state = REQUEST_IDLE;
547 request_enq(&assoc->outgoing, req);
548 /* turn the work over to the ir_session handler */
549 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
550 assoc->cs_put_mask = EVENT_OUTPUT;
551 /* Is there more work to be done? give that to the input handler too */
553 if (request_head(&assoc->incoming))
555 yaz_log (LOG_DEBUG, "more work to be done");
556 iochan_setevent(assoc->client_chan, EVENT_WORK);
563 * Handle init request.
564 * At the moment, we don't check the options
565 * anywhere else in the code - we just try not to do anything that would
566 * break a naive client. We'll toss 'em into the association block when
567 * we need them there.
569 static Z_APDU *process_initRequest(association *assoc, request *reqb)
571 statserv_options_block *cb = statserv_getcontrol();
572 Z_InitRequest *req = reqb->apdu_request->u.initRequest;
573 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
574 Z_InitResponse *resp = apdu->u.initResponse;
575 bend_initresult *binitres;
579 assoc->init = (bend_initrequest *) xmalloc (sizeof(*assoc->init));
581 yaz_log(LOG_LOG, "Got initRequest");
582 if (req->implementationId)
583 yaz_log(LOG_LOG, "Id: %s", req->implementationId);
584 if (req->implementationName)
585 yaz_log(LOG_LOG, "Name: %s", req->implementationName);
586 if (req->implementationVersion)
587 yaz_log(LOG_LOG, "Version: %s", req->implementationVersion);
589 assoc->init->stream = assoc->encode;
590 assoc->init->print = assoc->print;
591 assoc->init->auth = req->idAuthentication;
592 assoc->init->referenceId = req->referenceId;
593 assoc->init->implementation_version = 0;
594 assoc->init->implementation_name = 0;
595 assoc->init->bend_sort = NULL;
596 assoc->init->bend_search = NULL;
597 assoc->init->bend_present = NULL;
598 assoc->init->bend_esrequest = NULL;
599 assoc->init->bend_delete = NULL;
600 assoc->init->bend_scan = NULL;
601 assoc->init->bend_segment = NULL;
602 assoc->init->bend_fetch = NULL;
604 assoc->init->peer_name =
605 odr_strdup (assoc->encode, cs_addrstr(assoc->client_link));
606 if (!(binitres = (*cb->bend_init)(assoc->init)))
608 yaz_log(LOG_WARN, "Bad response from backend.");
612 assoc->backend = binitres->handle;
613 if ((assoc->init->bend_sort))
614 yaz_log (LOG_DEBUG, "Sort handler installed");
615 if ((assoc->init->bend_search))
616 yaz_log (LOG_DEBUG, "Search handler installed");
617 if ((assoc->init->bend_present))
618 yaz_log (LOG_DEBUG, "Present handler installed");
619 if ((assoc->init->bend_esrequest))
620 yaz_log (LOG_DEBUG, "ESRequest handler installed");
621 if ((assoc->init->bend_delete))
622 yaz_log (LOG_DEBUG, "Delete handler installed");
623 if ((assoc->init->bend_scan))
624 yaz_log (LOG_DEBUG, "Scan handler installed");
625 if ((assoc->init->bend_segment))
626 yaz_log (LOG_DEBUG, "Segment handler installed");
628 resp->referenceId = req->referenceId;
630 /* let's tell the client what we can do */
631 if (ODR_MASK_GET(req->options, Z_Options_search))
633 ODR_MASK_SET(resp->options, Z_Options_search);
634 strcat(options, "srch");
636 if (ODR_MASK_GET(req->options, Z_Options_present))
638 ODR_MASK_SET(resp->options, Z_Options_present);
639 strcat(options, " prst");
641 if (ODR_MASK_GET(req->options, Z_Options_delSet) &&
642 assoc->init->bend_delete)
644 ODR_MASK_SET(resp->options, Z_Options_delSet);
645 strcat(options, " del");
647 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
648 assoc->init->bend_esrequest)
650 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
651 strcat (options, " extendedServices");
653 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
655 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
656 strcat(options, " namedresults");
658 if (ODR_MASK_GET(req->options, Z_Options_scan) && assoc->init->bend_scan)
660 ODR_MASK_SET(resp->options, Z_Options_scan);
661 strcat(options, " scan");
663 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
665 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
666 strcat(options, " concurop");
668 if (ODR_MASK_GET(req->options, Z_Options_sort) && assoc->init->bend_sort)
670 ODR_MASK_SET(resp->options, Z_Options_sort);
671 strcat(options, " sort");
673 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
675 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
676 assoc->version = 2; /* 1 & 2 are equivalent */
678 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
680 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
683 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
685 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
688 yaz_log(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
689 assoc->maximumRecordSize = *req->maximumRecordSize;
690 if (assoc->maximumRecordSize > control_block->maxrecordsize)
691 assoc->maximumRecordSize = control_block->maxrecordsize;
692 assoc->preferredMessageSize = *req->preferredMessageSize;
693 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
694 assoc->preferredMessageSize = assoc->maximumRecordSize;
697 assoc->maximumRecordSize = 3000000;
698 assoc->preferredMessageSize = 3000000;
701 resp->preferredMessageSize = &assoc->preferredMessageSize;
702 resp->maximumRecordSize = &assoc->maximumRecordSize;
704 resp->implementationName = "GFS/YAZ";
706 if (assoc->init->implementation_name)
709 odr_malloc (assoc->encode,
710 strlen(assoc->init->implementation_name) + 10 +
711 strlen(resp->implementationName));
712 sprintf (nv, "%s / %s",
713 resp->implementationName, assoc->init->implementation_name);
714 resp->implementationName = nv;
716 if (assoc->init->implementation_version)
719 odr_malloc (assoc->encode,
720 strlen(assoc->init->implementation_version) + 10 +
721 strlen(resp->implementationVersion));
722 sprintf (nv, "YAZ %s / %s",
723 resp->implementationVersion,
724 assoc->init->implementation_version);
725 resp->implementationVersion = nv;
728 if (binitres->errcode)
730 yaz_log(LOG_LOG, "Connection rejected by backend.");
732 assoc->state = ASSOC_DEAD;
735 assoc->state = ASSOC_UP;
740 * These functions should be merged.
743 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo, ODR odr)
745 dr->which = Z_DefaultDiagFormat_v2Addinfo;
746 dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
750 * nonsurrogate diagnostic record.
752 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
754 Z_Records *rec = (Z_Records *)
755 odr_malloc (assoc->encode, sizeof(*rec));
756 int *err = odr_intdup(assoc->encode, error);
757 Z_DiagRec *drec = (Z_DiagRec *)
758 odr_malloc (assoc->encode, sizeof(*drec));
759 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
760 odr_malloc (assoc->encode, sizeof(*dr));
762 yaz_log(LOG_LOG, "[%d] %s %s%s", error, diagbib1_str(error),
763 addinfo ? " -- " : "", addinfo ? addinfo : "");
764 rec->which = Z_Records_NSD;
765 rec->u.nonSurrogateDiagnostic = dr;
766 dr->diagnosticSetId =
767 yaz_oidval_to_z3950oid (assoc->encode, CLASS_DIAGSET, VAL_BIB1);
769 set_addinfo (dr, addinfo, assoc->encode);
774 * surrogate diagnostic.
776 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
777 int error, char *addinfo)
779 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)
780 odr_malloc (assoc->encode, sizeof(*rec));
781 int *err = odr_intdup(assoc->encode, error);
782 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
783 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
784 odr_malloc (assoc->encode, sizeof(*dr));
786 yaz_log(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
787 rec->databaseName = dbname;
788 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
789 rec->u.surrogateDiagnostic = drec;
790 drec->which = Z_DiagRec_defaultFormat;
791 drec->u.defaultFormat = dr;
792 dr->diagnosticSetId =
793 yaz_oidval_to_z3950oid (assoc->encode, CLASS_DIAGSET, VAL_BIB1);
795 set_addinfo (dr, addinfo, assoc->encode);
801 * multiple nonsurrogate diagnostics.
803 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
805 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
806 int *err = odr_intdup(assoc->encode, error);
807 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
808 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
809 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)
810 odr_malloc (assoc->encode, sizeof(*rec));
812 yaz_log(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo ? addinfo : "");
814 recs->num_diagRecs = 1;
815 recs->diagRecs = recp;
817 drec->which = Z_DiagRec_defaultFormat;
818 drec->u.defaultFormat = rec;
820 rec->diagnosticSetId =
821 yaz_oidval_to_z3950oid (assoc->encode, CLASS_DIAGSET, VAL_BIB1);
822 rec->condition = err;
824 rec->which = Z_DefaultDiagFormat_v2Addinfo;
825 rec->u.v2Addinfo = odr_strdup (assoc->encode, addinfo ? addinfo : "");
829 static Z_Records *pack_records(association *a, char *setname, int start,
830 int *num, Z_RecordComposition *comp,
831 int *next, int *pres, oid_value format,
832 Z_ReferenceId *referenceId,
835 int recno, total_length = 0, toget = *num, dumped_records = 0;
837 (Z_Records *) odr_malloc (a->encode, sizeof(*records));
838 Z_NamePlusRecordList *reclist =
839 (Z_NamePlusRecordList *) odr_malloc (a->encode, sizeof(*reclist));
840 Z_NamePlusRecord **list =
841 (Z_NamePlusRecord **) odr_malloc (a->encode, sizeof(*list) * toget);
843 records->which = Z_Records_DBOSD;
844 records->u.databaseOrSurDiagnostics = reclist;
845 reclist->num_records = 0;
846 reclist->records = list;
847 *pres = Z_PRES_SUCCESS;
851 yaz_log(LOG_LOG, "Request to pack %d+%d+%s", start, toget, setname);
852 yaz_log(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
853 a->maximumRecordSize);
854 for (recno = start; reclist->num_records < toget; recno++)
857 Z_NamePlusRecord *thisrec;
860 * we get the number of bytes allocated on the stream before any
861 * allocation done by the backend - this should give us a reasonable
862 * idea of the total size of the data so far.
864 total_length = odr_total(a->encode) - dumped_records;
870 freq.last_in_set = 0;
871 freq.setname = setname;
872 freq.surrogate_flag = 0;
875 freq.request_format = format;
876 freq.request_format_raw = oid;
877 freq.output_format = format;
878 freq.output_format_raw = 0;
879 freq.stream = a->encode;
880 freq.print = a->print;
881 freq.surrogate_flag = 0;
882 freq.referenceId = referenceId;
883 (*a->init->bend_fetch)(a->backend, &freq);
884 /* backend should be able to signal whether error is system-wide
885 or only pertaining to current record */
888 if (!freq.surrogate_flag)
891 *pres = Z_PRES_FAILURE;
892 /* for 'present request out of range',
893 set addinfo to record position if not set */
894 if (freq.errcode == 13 && freq.errstring == 0)
896 sprintf (s, "%d", recno);
899 return diagrec(a, freq.errcode, freq.errstring);
901 reclist->records[reclist->num_records] =
902 surrogatediagrec(a, freq.basename, freq.errcode,
904 reclist->num_records++;
905 *next = freq.last_in_set ? 0 : recno + 1;
909 this_length = freq.len;
911 this_length = odr_total(a->encode) - total_length;
912 yaz_log(LOG_DEBUG, " fetched record, len=%d, total=%d",
913 this_length, total_length);
914 if (this_length + total_length > a->preferredMessageSize)
916 /* record is small enough, really */
917 if (this_length <= a->preferredMessageSize)
919 yaz_log(LOG_DEBUG, " Dropped last normal-sized record");
920 *pres = Z_PRES_PARTIAL_2;
923 /* record can only be fetched by itself */
924 if (this_length < a->maximumRecordSize)
926 yaz_log(LOG_DEBUG, " Record > prefmsgsz");
929 yaz_log(LOG_DEBUG, " Dropped it");
930 reclist->records[reclist->num_records] =
931 surrogatediagrec(a, freq.basename, 16, 0);
932 reclist->num_records++;
933 *next = freq.last_in_set ? 0 : recno + 1;
934 dumped_records += this_length;
938 else /* too big entirely */
940 yaz_log(LOG_LOG, "Record > maxrcdsz this=%d max=%d", this_length, a->maximumRecordSize);
941 reclist->records[reclist->num_records] =
942 surrogatediagrec(a, freq.basename, 17, 0);
943 reclist->num_records++;
944 *next = freq.last_in_set ? 0 : recno + 1;
945 dumped_records += this_length;
950 if (!(thisrec = (Z_NamePlusRecord *)
951 odr_malloc(a->encode, sizeof(*thisrec))))
953 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
954 strlen(freq.basename) + 1)))
956 strcpy(thisrec->databaseName, freq.basename);
957 thisrec->which = Z_NamePlusRecord_databaseRecord;
959 if (freq.output_format_raw)
961 struct oident *ident = oid_getentbyoid(freq.output_format_raw);
962 freq.output_format = ident->value;
964 thisrec->u.databaseRecord = z_ext_record(a->encode, freq.output_format,
965 freq.record, freq.len);
966 if (!thisrec->u.databaseRecord)
968 reclist->records[reclist->num_records] = thisrec;
969 reclist->num_records++;
970 *next = freq.last_in_set ? 0 : recno + 1;
972 *num = reclist->num_records;
976 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
979 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
980 bend_search_rr *bsrr =
981 (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
983 yaz_log(LOG_LOG, "Got SearchRequest.");
985 bsrr->request = reqb;
986 bsrr->association = assoc;
987 bsrr->referenceId = req->referenceId;
988 save_referenceId (reqb, bsrr->referenceId);
990 yaz_log (LOG_LOG, "ResultSet '%s'", req->resultSetName);
991 if (req->databaseNames)
994 for (i = 0; i < req->num_databaseNames; i++)
995 yaz_log (LOG_LOG, "Database '%s'", req->databaseNames[i]);
997 switch (req->query->which)
999 case Z_Query_type_1: case Z_Query_type_101:
1000 log_rpn_query (req->query->u.type_1);
1002 if (assoc->init->bend_search)
1004 bsrr->setname = req->resultSetName;
1005 bsrr->replace_set = *req->replaceIndicator;
1006 bsrr->num_bases = req->num_databaseNames;
1007 bsrr->basenames = req->databaseNames;
1008 bsrr->query = req->query;
1009 bsrr->stream = assoc->encode;
1010 bsrr->decode = assoc->decode;
1011 bsrr->print = assoc->print;
1014 bsrr->errstring = NULL;
1015 (assoc->init->bend_search)(assoc->backend, bsrr);
1019 return response_searchRequest(assoc, reqb, bsrr, fd);
1022 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1025 * Prepare a searchresponse based on the backend results. We probably want
1026 * to look at making the fetching of records nonblocking as well, but
1027 * so far, we'll keep things simple.
1028 * If bsrt is null, that means we're called in response to a communications
1029 * event, and we'll have to get the response for ourselves.
1031 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1032 bend_search_rr *bsrt, int *fd)
1034 Z_SearchRequest *req = reqb->apdu_request->u.searchRequest;
1035 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1036 Z_SearchResponse *resp = (Z_SearchResponse *)
1037 odr_malloc (assoc->encode, sizeof(*resp));
1038 int *nulint = odr_intdup (assoc->encode, 0);
1039 bool_t *sr = odr_intdup(assoc->encode, 1);
1040 int *next = odr_intdup(assoc->encode, 0);
1041 int *none = odr_intdup(assoc->encode, Z_RES_NONE);
1043 apdu->which = Z_APDU_searchResponse;
1044 apdu->u.searchResponse = resp;
1045 resp->referenceId = req->referenceId;
1046 resp->additionalSearchInfo = 0;
1047 resp->otherInfo = 0;
1049 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1051 yaz_log(LOG_FATAL, "Bad result from backend");
1054 else if (bsrt->errcode)
1056 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1057 resp->resultCount = nulint;
1058 resp->numberOfRecordsReturned = nulint;
1059 resp->nextResultSetPosition = nulint;
1060 resp->searchStatus = nulint;
1061 resp->resultSetStatus = none;
1062 resp->presentStatus = 0;
1066 int *toget = odr_intdup(assoc->encode, 0);
1067 int *presst = odr_intdup(assoc->encode, 0);
1068 Z_RecordComposition comp, *compp = 0;
1070 yaz_log (LOG_LOG, "resultCount: %d", bsrt->hits);
1073 resp->resultCount = &bsrt->hits;
1075 comp.which = Z_RecordComp_simple;
1076 /* how many records does the user agent want, then? */
1077 if (bsrt->hits <= *req->smallSetUpperBound)
1079 *toget = bsrt->hits;
1080 if ((comp.u.simple = req->smallSetElementSetNames))
1083 else if (bsrt->hits < *req->largeSetLowerBound)
1085 *toget = *req->mediumSetPresentNumber;
1086 if (*toget > bsrt->hits)
1087 *toget = bsrt->hits;
1088 if ((comp.u.simple = req->mediumSetElementSetNames))
1094 if (*toget && !resp->records)
1099 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)))
1102 form = prefformat->value;
1103 resp->records = pack_records(assoc, req->resultSetName, 1,
1104 toget, compp, next, presst, form, req->referenceId,
1105 req->preferredRecordSyntax);
1108 resp->numberOfRecordsReturned = toget;
1109 resp->nextResultSetPosition = next;
1110 resp->searchStatus = sr;
1111 resp->resultSetStatus = 0;
1112 resp->presentStatus = presst;
1116 if (*resp->resultCount)
1118 resp->numberOfRecordsReturned = nulint;
1119 resp->nextResultSetPosition = next;
1120 resp->searchStatus = sr;
1121 resp->resultSetStatus = 0;
1122 resp->presentStatus = 0;
1129 * Maybe we got a little over-friendly when we designed bend_fetch to
1130 * get only one record at a time. Some backends can optimise multiple-record
1131 * fetches, and at any rate, there is some overhead involved in
1132 * all that selecting and hopping around. Problem is, of course, that the
1133 * frontend can't know ahead of time how many records it'll need to
1134 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1135 * is downright lousy as a bulk data transfer protocol.
1137 * To start with, we'll do the fetching of records from the backend
1138 * in one operation: To save some trips in and out of the event-handler,
1139 * and to simplify the interface to pack_records. At any rate, asynch
1140 * operation is more fun in operations that have an unpredictable execution
1141 * speed - which is normally more true for search than for present.
1143 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1146 Z_PresentRequest *req = reqb->apdu_request->u.presentRequest;
1150 Z_PresentResponse *resp;
1154 yaz_log(LOG_LOG, "Got PresentRequest.");
1156 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)))
1159 form = prefformat->value;
1160 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1162 resp->presentStatus = odr_intdup(assoc->encode, 0);
1163 if (assoc->init->bend_present)
1165 bend_present_rr *bprr = (bend_present_rr *)
1166 nmem_malloc (reqb->request_mem, sizeof(*bprr));
1167 bprr->setname = req->resultSetId;
1168 bprr->start = *req->resultSetStartPoint;
1169 bprr->number = *req->numberOfRecordsRequested;
1170 bprr->format = form;
1171 bprr->comp = req->recordComposition;
1172 bprr->referenceId = req->referenceId;
1173 bprr->stream = assoc->encode;
1174 bprr->print = assoc->print;
1175 bprr->request = reqb;
1176 bprr->association = assoc;
1178 bprr->errstring = NULL;
1179 (*assoc->init->bend_present)(assoc->backend, bprr);
1185 resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
1186 *resp->presentStatus = Z_PRES_FAILURE;
1189 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1190 next = odr_intdup(assoc->encode, 0);
1191 num = odr_intdup(assoc->encode, 0);
1193 apdu->which = Z_APDU_presentResponse;
1194 apdu->u.presentResponse = resp;
1195 resp->referenceId = req->referenceId;
1196 resp->otherInfo = 0;
1200 *num = *req->numberOfRecordsRequested;
1202 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1203 num, req->recordComposition, next, resp->presentStatus,
1204 form, req->referenceId, req->preferredRecordSyntax);
1208 resp->numberOfRecordsReturned = num;
1209 resp->nextResultSetPosition = next;
1215 * Scan was implemented rather in a hurry, and with support for only the basic
1216 * elements of the service in the backend API. Suggestions are welcome.
1218 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1220 Z_ScanRequest *req = reqb->apdu_request->u.scanRequest;
1221 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1222 Z_ScanResponse *res = (Z_ScanResponse *)
1223 odr_malloc (assoc->encode, sizeof(*res));
1224 int *scanStatus = odr_intdup(assoc->encode, Z_Scan_failure);
1225 int *numberOfEntriesReturned = odr_intdup(assoc->encode, 0);
1226 Z_ListEntries *ents = (Z_ListEntries *)
1227 odr_malloc (assoc->encode, sizeof(*ents));
1228 Z_DiagRecs *diagrecs_p = NULL;
1230 bend_scan_rr *bsrr = (bend_scan_rr *)
1231 odr_malloc (assoc->encode, sizeof(*bsrr));
1233 yaz_log(LOG_LOG, "Got ScanRequest");
1235 apdu->which = Z_APDU_scanResponse;
1236 apdu->u.scanResponse = res;
1237 res->referenceId = req->referenceId;
1239 /* if step is absent, set it to 0 */
1240 res->stepSize = odr_intdup(assoc->encode, 0);
1242 *res->stepSize = *req->stepSize;
1244 res->scanStatus = scanStatus;
1245 res->numberOfEntriesReturned = numberOfEntriesReturned;
1246 res->positionOfTerm = 0;
1247 res->entries = ents;
1248 ents->num_entries = 0;
1249 ents->entries = NULL;
1250 ents->num_nonsurrogateDiagnostics = 0;
1251 ents->nonsurrogateDiagnostics = NULL;
1252 res->attributeSet = 0;
1255 if (req->databaseNames)
1258 for (i = 0; i < req->num_databaseNames; i++)
1259 yaz_log (LOG_LOG, "Database '%s'", req->databaseNames[i]);
1261 bsrr->num_bases = req->num_databaseNames;
1262 bsrr->basenames = req->databaseNames;
1263 bsrr->num_entries = *req->numberOfTermsRequested;
1264 bsrr->term = req->termListAndStartPoint;
1265 bsrr->referenceId = req->referenceId;
1266 bsrr->stream = assoc->encode;
1267 bsrr->print = assoc->print;
1268 bsrr->step_size = res->stepSize;
1269 if (req->attributeSet &&
1270 (attset = oid_getentbyoid(req->attributeSet)) &&
1271 (attset->oclass == CLASS_ATTSET || attset->oclass == CLASS_GENERAL))
1272 bsrr->attributeset = attset->value;
1274 bsrr->attributeset = VAL_NONE;
1275 log_scan_term (req->termListAndStartPoint, bsrr->attributeset);
1276 bsrr->term_position = req->preferredPositionInResponse ?
1277 *req->preferredPositionInResponse : 1;
1278 ((int (*)(void *, bend_scan_rr *))
1279 (*assoc->init->bend_scan))(assoc->backend, bsrr);
1281 diagrecs_p = diagrecs(assoc, bsrr->errcode, bsrr->errstring);
1285 Z_Entry **tab = (Z_Entry **)
1286 odr_malloc (assoc->encode, sizeof(*tab) * bsrr->num_entries);
1288 if (bsrr->status == BEND_SCAN_PARTIAL)
1289 *scanStatus = Z_Scan_partial_5;
1291 *scanStatus = Z_Scan_success;
1292 ents->entries = tab;
1293 ents->num_entries = bsrr->num_entries;
1294 res->numberOfEntriesReturned = &ents->num_entries;
1295 res->positionOfTerm = &bsrr->term_position;
1296 for (i = 0; i < bsrr->num_entries; i++)
1302 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1303 if (bsrr->entries[i].occurrences >= 0)
1305 e->which = Z_Entry_termInfo;
1306 e->u.termInfo = t = (Z_TermInfo *)
1307 odr_malloc(assoc->encode, sizeof(*t));
1308 t->suggestedAttributes = 0;
1310 t->alternativeTerm = 0;
1311 t->byAttributes = 0;
1312 t->otherTermInfo = 0;
1313 t->globalOccurrences = &bsrr->entries[i].occurrences;
1314 t->term = (Z_Term *)
1315 odr_malloc(assoc->encode, sizeof(*t->term));
1316 t->term->which = Z_Term_general;
1317 t->term->u.general = o =
1318 (Odr_oct *)odr_malloc(assoc->encode, sizeof(Odr_oct));
1319 o->buf = (unsigned char *)
1320 odr_malloc(assoc->encode, o->len = o->size =
1321 strlen(bsrr->entries[i].term));
1322 memcpy(o->buf, bsrr->entries[i].term, o->len);
1323 yaz_log(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1324 bsrr->entries[i].term, bsrr->entries[i].occurrences);
1328 Z_DiagRecs *drecs = diagrecs (assoc,
1329 bsrr->entries[i].errcode,
1330 bsrr->entries[i].errstring);
1331 assert (drecs->num_diagRecs == 1);
1332 e->which = Z_Entry_surrogateDiagnostic;
1333 assert (drecs->diagRecs[0]);
1334 e->u.surrogateDiagnostic = drecs->diagRecs[0];
1340 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1341 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1346 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1349 Z_SortRequest *req = reqb->apdu_request->u.sortRequest;
1350 Z_SortResponse *res = (Z_SortResponse *)
1351 odr_malloc (assoc->encode, sizeof(*res));
1352 bend_sort_rr *bsrr = (bend_sort_rr *)
1353 odr_malloc (assoc->encode, sizeof(*bsrr));
1355 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1357 yaz_log(LOG_LOG, "Got SortRequest.");
1359 bsrr->num_input_setnames = req->num_inputResultSetNames;
1360 bsrr->input_setnames = req->inputResultSetNames;
1361 bsrr->referenceId = req->referenceId;
1362 bsrr->output_setname = req->sortedResultSetName;
1363 bsrr->sort_sequence = req->sortSequence;
1364 bsrr->stream = assoc->encode;
1365 bsrr->print = assoc->print;
1367 bsrr->sort_status = Z_SortStatus_failure;
1369 bsrr->errstring = 0;
1371 (*assoc->init->bend_sort)(assoc->backend, bsrr);
1373 res->referenceId = bsrr->referenceId;
1374 res->sortStatus = odr_intdup(assoc->encode, bsrr->sort_status);
1375 res->resultSetStatus = 0;
1378 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1379 res->diagnostics = dr->diagRecs;
1380 res->num_diagnostics = dr->num_diagRecs;
1384 res->num_diagnostics = 0;
1385 res->diagnostics = 0;
1389 apdu->which = Z_APDU_sortResponse;
1390 apdu->u.sortResponse = res;
1394 static Z_APDU *process_deleteRequest(association *assoc, request *reqb,
1397 Z_DeleteResultSetRequest *req =
1398 reqb->apdu_request->u.deleteResultSetRequest;
1399 Z_DeleteResultSetResponse *res = (Z_DeleteResultSetResponse *)
1400 odr_malloc (assoc->encode, sizeof(*res));
1401 bend_delete_rr *bdrr = (bend_delete_rr *)
1402 odr_malloc (assoc->encode, sizeof(*bdrr));
1403 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1405 yaz_log(LOG_LOG, "Got DeleteRequest.");
1407 bdrr->num_setnames = req->num_resultSetList;
1408 bdrr->setnames = req->resultSetList;
1409 bdrr->stream = assoc->encode;
1410 bdrr->print = assoc->print;
1411 bdrr->function = *req->deleteFunction;
1412 bdrr->referenceId = req->referenceId;
1414 if (bdrr->num_setnames > 0)
1417 bdrr->statuses = (int*)
1418 odr_malloc(assoc->encode, sizeof(*bdrr->statuses) *
1419 bdrr->num_setnames);
1420 for (i = 0; i < bdrr->num_setnames; i++)
1421 bdrr->statuses[i] = 0;
1423 (*assoc->init->bend_delete)(assoc->backend, bdrr);
1425 res->referenceId = req->referenceId;
1427 res->deleteOperationStatus = odr_intdup(assoc->encode,bdrr->delete_status);
1429 res->deleteListStatuses = 0;
1430 if (bdrr->num_setnames > 0)
1433 res->deleteListStatuses = (Z_ListStatuses *)
1434 odr_malloc(assoc->encode, sizeof(*res->deleteListStatuses));
1435 res->deleteListStatuses->num = bdrr->num_setnames;
1436 res->deleteListStatuses->elements =
1438 odr_malloc (assoc->encode,
1439 sizeof(*res->deleteListStatuses->elements) *
1440 bdrr->num_setnames);
1441 for (i = 0; i<bdrr->num_setnames; i++)
1443 res->deleteListStatuses->elements[i] =
1445 odr_malloc (assoc->encode,
1446 sizeof(**res->deleteListStatuses->elements));
1447 res->deleteListStatuses->elements[i]->status = bdrr->statuses+i;
1448 res->deleteListStatuses->elements[i]->id =
1449 odr_strdup (assoc->encode, bdrr->setnames[i]);
1453 res->numberNotDeleted = 0;
1454 res->bulkStatuses = 0;
1455 res->deleteMessage = 0;
1458 apdu->which = Z_APDU_deleteResultSetResponse;
1459 apdu->u.deleteResultSetResponse = res;
1463 static void process_close(association *assoc, request *reqb)
1465 Z_Close *req = reqb->apdu_request->u.close;
1466 static char *reasons[] =
1473 "securityViolation",
1480 yaz_log(LOG_LOG, "Got Close, reason %s, message %s",
1481 reasons[*req->closeReason], req->diagnosticInformation ?
1482 req->diagnosticInformation : "NULL");
1483 if (assoc->version < 3) /* to make do_force respond with close */
1485 do_close_req(assoc, Z_Close_finished,
1486 "Association terminated by client", reqb);
1489 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1493 reqb->len_refid = refid->len;
1494 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1495 memcpy (reqb->refid, refid->buf, refid->len);
1499 reqb->len_refid = 0;
1504 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1506 process_response (a, req, res);
1509 bend_request bend_request_mk (bend_association a)
1511 request *nreq = request_get (&a->outgoing);
1512 nreq->request_mem = nmem_create ();
1516 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1521 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1522 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1523 id->len = id->size = req->len_refid;
1524 memcpy (id->buf, req->refid, req->len_refid);
1528 void bend_request_destroy (bend_request *req)
1530 nmem_destroy((*req)->request_mem);
1531 request_release(*req);
1535 int bend_backend_respond (bend_association a, bend_request req)
1539 r = process_request (a, req, &msg);
1541 logf (LOG_WARN, "%s", msg);
1545 void bend_request_setdata(bend_request r, void *p)
1550 void *bend_request_getdata(bend_request r)
1552 return r->clientData;
1555 static Z_APDU *process_segmentRequest (association *assoc, request *reqb)
1557 bend_segment_rr request;
1559 request.segment = reqb->apdu_request->u.segmentRequest;
1560 request.stream = assoc->encode;
1561 request.decode = assoc->decode;
1562 request.print = assoc->print;
1563 request.association = assoc;
1565 (*assoc->init->bend_segment)(assoc->backend, &request);
1570 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1572 bend_esrequest_rr esrequest;
1574 Z_ExtendedServicesRequest *req = reqb->apdu_request->u.extendedServicesRequest;
1575 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1577 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1579 yaz_log(LOG_DEBUG,"inside Process esRequest");
1581 esrequest.esr = reqb->apdu_request->u.extendedServicesRequest;
1582 esrequest.stream = assoc->encode;
1583 esrequest.decode = assoc->decode;
1584 esrequest.print = assoc->print;
1585 esrequest.errcode = 0;
1586 esrequest.errstring = NULL;
1587 esrequest.request = reqb;
1588 esrequest.association = assoc;
1589 esrequest.taskPackage = 0;
1590 esrequest.referenceId = req->referenceId;
1592 (*assoc->init->bend_esrequest)(assoc->backend, &esrequest);
1594 /* If the response is being delayed, return NULL */
1595 if (esrequest.request == NULL)
1598 resp->referenceId = req->referenceId;
1600 if (esrequest.errcode == -1)
1602 /* Backend service indicates request will be processed */
1603 yaz_log(LOG_DEBUG,"Request could be processed...Accepted !");
1604 *resp->operationStatus = Z_ExtendedServicesResponse_accepted;
1606 else if (esrequest.errcode == 0)
1608 /* Backend service indicates request will be processed */
1609 yaz_log(LOG_DEBUG,"Request could be processed...Done !");
1610 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1614 Z_DiagRecs *diagRecs = diagrecs (assoc, esrequest.errcode,
1615 esrequest.errstring);
1617 /* Backend indicates error, request will not be processed */
1618 yaz_log(LOG_DEBUG,"Request could not be processed...failure !");
1619 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1620 resp->num_diagnostics = diagRecs->num_diagRecs;
1621 resp->diagnostics = diagRecs->diagRecs;
1623 /* Do something with the members of bend_extendedservice */
1624 if (esrequest.taskPackage)
1625 resp->taskPackage = z_ext_record (assoc->encode, VAL_EXTENDED,
1626 (const char *) esrequest.taskPackage,
1628 yaz_log(LOG_DEBUG,"Send the result apdu");