2 * Copyright (c) 1995-1998, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.74 1998-03-31 15:13:20 adam
8 * Development towards compiled ASN.1.
10 * Revision 1.73 1998/03/31 11:07:45 adam
11 * Furhter work on UNIverse resource report.
12 * Added Extended Services handling in frontend server.
14 * Revision 1.72 1998/02/11 11:53:35 adam
15 * Changed code so that it compiles as C++.
17 * Revision 1.71 1998/02/10 11:03:57 adam
18 * Added support for extended handlers in backend server interface.
20 * Revision 1.70 1998/01/29 13:15:35 adam
21 * Implemented sort for the backend interface.
23 * Revision 1.69 1997/09/30 11:48:12 adam
24 * Fixed bug introduced by previous commit.
26 * Revision 1.68 1997/09/29 13:18:59 adam
27 * Added function, oid_ent_to_oid, to replace the function
28 * oid_getoidbyent, which is not thread safe.
30 * Revision 1.67 1997/09/17 12:10:40 adam
33 * Revision 1.66 1997/09/05 15:26:44 adam
34 * Added ODR encode in search and scen bend request structures.
35 * Fixed a few enums that caused trouble with C++.
37 * Revision 1.65 1997/09/01 08:53:01 adam
38 * New windows NT/95 port using MSV5.0. The test server 'ztest' was
39 * moved a separate directory. MSV5.0 project server.dsp created.
40 * As an option, the server can now operate as an NT service.
42 * Revision 1.64 1997/04/30 08:52:11 quinn
45 * Revision 1.63 1996/10/11 11:57:26 quinn
48 * Revision 1.62 1996/07/06 19:58:35 quinn
49 * System headerfiles gathered in yconfig
51 * Revision 1.61 1996/06/10 08:56:16 quinn
54 * Revision 1.60 1996/05/30 11:03:10 quinn
55 * Fixed NextresultSetPosition bug fixed.
57 * Revision 1.59 1996/05/14 09:26:46 quinn
58 * Added attribute set to scan backend
60 * Revision 1.58 1996/02/20 12:53:04 quinn
63 * Revision 1.57 1996/01/02 08:57:47 quinn
64 * Changed enums in the ASN.1 .h files to #defines. Changed oident.class to oclass
66 * Revision 1.56 1995/12/14 11:09:57 quinn
69 * Revision 1.55 1995/11/08 17:41:37 quinn
72 * Revision 1.54 1995/11/08 15:11:29 quinn
73 * Log of close transmit.
75 * Revision 1.53 1995/11/01 13:54:58 quinn
78 * Revision 1.52 1995/11/01 12:19:13 quinn
79 * Second attempt to fix same bug.
81 * Revision 1.50 1995/10/25 16:58:32 quinn
84 * Revision 1.49 1995/10/16 13:51:53 quinn
85 * Changes to provide Especs to the backend.
87 * Revision 1.48 1995/10/06 08:51:20 quinn
90 * Revision 1.47 1995/08/29 14:24:16 quinn
91 * Added second half of close-handshake
93 * Revision 1.46 1995/08/29 11:17:58 quinn
94 * Added code to receive close
96 * Revision 1.45 1995/08/21 09:11:00 quinn
97 * Smallish fixes to suppport new formats.
99 * Revision 1.44 1995/08/17 12:45:25 quinn
100 * Fixed minor problems with GRS-1. Added support in c&s.
102 * Revision 1.43 1995/08/15 12:00:31 quinn
105 * Revision 1.42 1995/08/15 11:16:50 quinn
107 * Revision 1.41 1995/08/02 10:23:06 quinn
110 * Revision 1.40 1995/07/31 14:34:26 quinn
111 * Fixed bug in process_searchResponse (numberOfRecordsReturned).
113 * Revision 1.39 1995/06/27 13:21:00 quinn
116 * Revision 1.38 1995/06/19 12:39:11 quinn
117 * Fixed bug in timeout code. Added BER dumper.
119 * Revision 1.37 1995/06/16 13:16:14 quinn
120 * Fixed Defaultdiagformat.
122 * Revision 1.36 1995/06/16 10:31:36 quinn
123 * Added session timeout.
125 * Revision 1.35 1995/06/15 07:45:14 quinn
128 * Revision 1.34 1995/06/14 15:26:46 quinn
129 * *** empty log message ***
131 * Revision 1.33 1995/06/06 14:57:05 quinn
132 * Better diagnostics.
134 * Revision 1.32 1995/06/06 08:41:44 quinn
135 * Better diagnostics.
137 * Revision 1.31 1995/06/06 08:15:37 quinn
140 * Revision 1.30 1995/06/05 10:53:32 quinn
141 * Added a better SCAN.
143 * Revision 1.29 1995/06/01 11:25:03 quinn
146 * Revision 1.28 1995/06/01 11:21:01 quinn
147 * Attempting to fix a bug in pack-records. replaced break with continue
148 * for large records, according to standard.
150 * Revision 1.27 1995/05/29 08:12:06 quinn
153 * Revision 1.26 1995/05/18 13:02:12 quinn
156 * Revision 1.25 1995/05/17 08:42:26 quinn
157 * Transfer auth info to backend. Allow backend to reject init gracefully.
159 * Revision 1.24 1995/05/16 08:51:04 quinn
160 * License, documentation, and memory fixes
162 * Revision 1.23 1995/05/15 13:25:10 quinn
165 * Revision 1.22 1995/05/15 11:56:39 quinn
166 * Asynchronous facilities. Restructuring of seshigh code.
168 * Revision 1.21 1995/05/02 08:53:19 quinn
169 * Trying in vain to fix comm with ISODE
171 * Revision 1.20 1995/04/20 15:13:00 quinn
174 * Revision 1.19 1995/04/18 08:15:34 quinn
175 * Added dynamic memory allocation on encoding (whew). Code is now somewhat
176 * neater. We'll make the same change for decoding one day.
178 * Revision 1.18 1995/04/17 11:28:25 quinn
181 * Revision 1.17 1995/04/10 10:23:36 quinn
182 * Some work to add scan and other things.
184 * Revision 1.16 1995/03/31 09:18:55 quinn
187 * Revision 1.15 1995/03/30 14:03:23 quinn
188 * Added RFC1006 as separate library
190 * Revision 1.14 1995/03/30 12:18:17 quinn
193 * Revision 1.13 1995/03/30 09:09:24 quinn
194 * Added state-handle and some support for asynchronous activities.
196 * Revision 1.12 1995/03/29 15:40:16 quinn
197 * Ongoing work. Statserv is now dynamic by default
199 * Revision 1.11 1995/03/28 09:16:21 quinn
200 * Added record packing to the search request
202 * Revision 1.10 1995/03/27 08:34:24 quinn
203 * Added dynamic server functionality.
204 * Released bindings to session.c (is now redundant)
206 * Revision 1.9 1995/03/22 15:01:26 quinn
207 * Adjusting record packing.
209 * Revision 1.8 1995/03/22 10:13:21 quinn
210 * Working on record packer
212 * Revision 1.7 1995/03/21 15:53:31 quinn
215 * Revision 1.6 1995/03/21 12:30:09 quinn
216 * Beginning to add support for record packing.
218 * Revision 1.5 1995/03/17 10:44:13 quinn
219 * Added catch of null-string in makediagrec
221 * Revision 1.4 1995/03/17 10:18:08 quinn
222 * Added memory management.
224 * Revision 1.3 1995/03/16 17:42:39 quinn
227 * Revision 1.2 1995/03/16 13:29:01 quinn
228 * Partitioned server.
230 * Revision 1.1 1995/03/15 16:02:10 quinn
231 * Modded session.c to seshigh.c
236 * Frontend server logic.
238 * This code receives incoming APDUs, and handles client requests by means
239 * of the backend API.
241 * Some of the code is getting quite involved, compared to simpler servers -
242 * primarily because it is asynchronous both in the communication with
243 * the user and the backend. We think the complexity will pay off in
244 * the form of greater flexibility when more asynchronous facilities
247 * Memory management has become somewhat involved. In the simple case, where
248 * only one PDU is pending at a time, it will simply reuse the same memory,
249 * once it has found its working size. When we enable multiple concurrent
250 * operations, perhaps even with multiple parallel calls to the backend, it
251 * will maintain a pool of buffers for encoding and decoding, trying to
252 * minimize memory allocation/deallocation during normal operation.
254 * TODOs include (and will be done in order of public interest):
256 * Support for EXPLAIN - provide simple meta-database system.
257 * Support for access control.
258 * Support for resource control.
259 * Support for extended services - primarily Item Order.
260 * Rest of Z39.50-1994
275 #include <comstack.h>
281 #include <statserv.h>
285 static int process_request(association *assoc, request *req);
286 void backend_response(IOCHAN i, int event);
287 static int process_response(association *assoc, request *req, Z_APDU *res);
288 static Z_APDU *process_initRequest(association *assoc, request *reqb);
289 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
291 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
292 bend_search_rr *bsrr, int *fd);
293 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
295 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd);
296 static Z_APDU *process_sortRequest(association *assoc, request *reqb, int *fd);
297 static void process_close(association *assoc, request *reqb);
298 void save_referenceId (request *reqb, Z_ReferenceId *refid);
300 static FILE *apduf = 0; /* for use in static mode */
301 static statserv_options_block *control_block = 0;
303 /* Chas: Added in from DALI */
304 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
305 /* Chas: End of addition from DALI */
308 * Create and initialize a new association-handle.
309 * channel : iochannel for the current line.
310 * link : communications channel.
311 * Returns: 0 or a new association handle.
313 association *create_association(IOCHAN channel, COMSTACK link)
318 control_block = statserv_getcontrol();
319 if (!(anew = (association *)xmalloc(sizeof(*anew))))
321 anew->client_chan = channel;
322 anew->client_link = link;
323 if (!(anew->decode = odr_createmem(ODR_DECODE)) ||
324 !(anew->encode = odr_createmem(ODR_ENCODE)))
326 if (*control_block->apdufile)
331 strcpy(filename, control_block->apdufile);
332 if (!(anew->print = odr_createmem(ODR_PRINT)))
334 if (*control_block->apdufile != '-')
336 strcpy(filename, control_block->apdufile);
337 if (!control_block->dynamic)
341 if (!(apduf = fopen(filename, "w")))
343 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
346 setvbuf(apduf, 0, _IONBF, 0);
352 sprintf(filename + strlen(filename), ".%d", getpid());
353 if (!(f = fopen(filename, "w")))
355 logf(LOG_WARN|LOG_ERRNO, "%s", filename);
358 setvbuf(f, 0, _IONBF, 0);
360 odr_setprint(anew->print, f);
365 anew->input_buffer = 0;
366 anew->input_buffer_len = 0;
368 anew->state = ASSOC_NEW;
369 request_initq(&anew->incoming);
370 request_initq(&anew->outgoing);
371 anew->proto = cs_getproto(link);
376 * Free association and release resources.
378 void destroy_association(association *h)
380 odr_destroy(h->decode);
381 odr_destroy(h->encode);
383 odr_destroy(h->print);
385 xfree(h->input_buffer);
387 bend_close(h->backend);
388 while (request_deq(&h->incoming));
389 while (request_deq(&h->outgoing));
390 request_delq(&h->incoming);
391 request_delq(&h->outgoing);
395 static void do_close(association *a, int reason, char *message)
398 Z_Close *cls = zget_Close(a->encode);
399 request *req = request_get(&a->outgoing);
401 /* Purge request queue */
402 while (request_deq(&a->incoming));
403 while (request_deq(&a->outgoing));
406 logf(LOG_LOG, "Sending Close PDU, reason=%d, message=%s",
407 reason, message ? message : "none");
408 apdu.which = Z_APDU_close;
410 *cls->closeReason = reason;
411 cls->diagnosticInformation = message;
412 process_response(a, req, &apdu);
413 iochan_settimeout(a->client_chan, 60);
417 logf(LOG_DEBUG, "v2 client. No Close PDU");
418 iochan_setevent(a->client_chan, EVENT_TIMEOUT); /* force imm close */
420 a->state = ASSOC_DEAD;
424 * This is where PDUs from the client are read and the further
425 * processing is initiated. Flow of control moves down through the
426 * various process_* functions below, until the encoded result comes back up
427 * to the output handler in here.
429 * h : the I/O channel that has an outstanding event.
430 * event : the current outstanding event.
432 void ir_session(IOCHAN h, int event)
435 association *assoc = (association *)iochan_getdata(h);
436 COMSTACK conn = assoc->client_link;
439 assert(h && conn && assoc);
440 if (event == EVENT_TIMEOUT)
442 if (assoc->state != ASSOC_UP)
444 logf(LOG_LOG, "Final timeout - closing connection.");
446 destroy_association(assoc);
451 logf(LOG_LOG, "Session idle too long. Sending close.");
452 do_close(assoc, Z_Close_lackOfActivity, 0);
456 if (event & EVENT_INPUT || event & EVENT_WORK) /* input */
458 if (event & EVENT_INPUT)
460 logf(LOG_DEBUG, "ir_session (input)");
461 assert(assoc && conn);
462 /* We aren't speaking to this fellow */
463 if (assoc->state == ASSOC_DEAD)
465 logf(LOG_LOG, "Closed connection after reject");
467 destroy_association(assoc);
471 if ((res = cs_get(conn, &assoc->input_buffer,
472 &assoc->input_buffer_len)) <= 0)
474 logf(LOG_LOG, "Connection closed by client");
476 destroy_association(assoc);
480 else if (res == 1) /* incomplete read - wait for more */
482 if (cs_more(conn)) /* more stuff - call us again later, please */
483 iochan_setevent(h, EVENT_INPUT);
485 /* we got a complete PDU. Let's decode it */
486 logf(LOG_DEBUG, "Got PDU, %d bytes", res);
487 req = request_get(&assoc->incoming); /* get a new request structure */
488 odr_reset(assoc->decode);
489 odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
490 if (!z_APDU(assoc->decode, &req->request, 0))
492 logf(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
493 odr_errmsg(odr_geterror(assoc->decode)),
494 odr_offset(assoc->decode));
495 logf(LOG_LOG, "PDU dump:");
496 odr_dumpBER(log_file(), assoc->input_buffer, res);
497 do_close(assoc, Z_Close_protocolError, "Malformed package");
500 req->request_mem = odr_extract_mem(assoc->decode);
501 if (assoc->print && !z_APDU(assoc->print, &req->request, 0))
503 logf(LOG_WARN, "ODR print error: %s",
504 odr_errmsg(odr_geterror(assoc->print)));
505 odr_reset(assoc->print);
507 request_enq(&assoc->incoming, req);
510 /* can we do something yet? */
511 req = request_head(&assoc->incoming);
512 if (req->state == REQUEST_IDLE)
514 request_deq(&assoc->incoming);
515 if (process_request(assoc, req) < 0)
516 do_close(assoc, Z_Close_systemProblem, "Unknown error");
519 if (event & EVENT_OUTPUT)
521 request *req = request_head(&assoc->outgoing);
523 logf(LOG_DEBUG, "ir_session (output)");
524 req->state = REQUEST_PENDING;
525 switch (res = cs_put(conn, req->response, req->len_response))
528 logf(LOG_LOG, "Connection closed by client");
530 destroy_association(assoc);
533 case 0: /* all sent - release the request structure */
534 logf(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
535 nmem_destroy(req->request_mem);
536 request_deq(&assoc->outgoing);
537 request_release(req);
538 if (!request_head(&assoc->outgoing))
539 iochan_clearflag(h, EVENT_OUTPUT);
541 /* value of 1 -- partial send -- is simply ignored */
544 if (event & EVENT_EXCEPT)
546 logf(LOG_DEBUG, "ir_session (exception)");
548 destroy_association(assoc);
554 * Initiate request processing.
556 static int process_request(association *assoc, request *req)
562 assert(req && req->state == REQUEST_IDLE);
563 switch (req->request->which)
565 case Z_APDU_initRequest:
566 res = process_initRequest(assoc, req); break;
567 case Z_APDU_searchRequest:
568 res = process_searchRequest(assoc, req, &fd); break;
569 case Z_APDU_presentRequest:
570 res = process_presentRequest(assoc, req, &fd); break;
571 case Z_APDU_scanRequest:
572 res = process_scanRequest(assoc, req, &fd); break;
573 /* Chas: Added in from DALI */
574 case Z_APDU_extendedServicesRequest:
575 if (assoc->bend_esrequest)
576 res = process_ESRequest(assoc, req, &fd);
579 logf(LOG_WARN, "Cannot handle EXTENDED SERVICES APDU");
582 /* Chas: End of addition from DALI */
584 case Z_APDU_sortRequest:
585 if (assoc->bend_sort)
586 res = process_sortRequest(assoc, req, &fd);
589 logf(LOG_WARN, "Cannot handle SORT APDU");
594 process_close(assoc, req); return 0;
596 logf(LOG_WARN, "Bad APDU received");
601 logf(LOG_DEBUG, " result immediately available");
602 retval = process_response(assoc, req, res);
606 logf(LOG_DEBUG, " result unavailble");
609 else /* no result yet - one will be provided later */
613 /* Set up an I/O handler for the fd supplied by the backend */
615 logf(LOG_DEBUG, " establishing handler for result");
616 req->state = REQUEST_PENDING;
617 if (!(chan = iochan_create(fd, backend_response, EVENT_INPUT)))
619 iochan_setdata(chan, assoc);
626 * Handle message from the backend.
628 void backend_response(IOCHAN i, int event)
630 association *assoc = (association *)iochan_getdata(i);
631 request *req = request_head(&assoc->incoming);
635 logf(LOG_DEBUG, "backend_response");
636 assert(assoc && req && req->state != REQUEST_IDLE);
637 /* determine what it is we're waiting for */
638 switch (req->request->which)
640 case Z_APDU_searchRequest:
641 res = response_searchRequest(assoc, req, 0, &fd); break;
643 case Z_APDU_presentRequest:
644 res = response_presentRequest(assoc, req, 0, &fd); break;
645 case Z_APDU_scanRequest:
646 res = response_scanRequest(assoc, req, 0, &fd); break;
649 logf(LOG_WARN, "Serious programmer's lapse or bug");
652 if ((res && process_response(assoc, req, res) < 0) || fd < 0)
654 logf(LOG_LOG, "Fatal error when talking to backend");
655 do_close(assoc, Z_Close_systemProblem, 0);
659 else if (!res) /* no result yet - try again later */
661 logf(LOG_DEBUG, " no result yet");
662 iochan_setfd(i, fd); /* in case fd has changed */
667 * Encode response, and transfer the request structure to the outgoing queue.
669 static int process_response(association *assoc, request *req, Z_APDU *res)
671 odr_setbuf(assoc->encode, req->response, req->size_response, 1);
672 if (!z_APDU(assoc->encode, &res, 0))
674 logf(LOG_WARN, "ODR error when encoding response: %s",
675 odr_errmsg(odr_geterror(assoc->decode)));
676 odr_reset(assoc->encode);
679 req->response = odr_getbuf(assoc->encode, &req->len_response,
680 &req->size_response);
681 odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
682 odr_reset(assoc->encode);
683 if (assoc->print && !z_APDU(assoc->print, &res, 0))
685 logf(LOG_WARN, "ODR print error: %s",
686 odr_errmsg(odr_geterror(assoc->print)));
687 odr_reset(assoc->print);
689 req->state = REQUEST_IDLE;
690 request_enq(&assoc->outgoing, req);
691 /* turn the work over to the ir_session handler */
692 iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
693 /* Is there more work to be done? give that to the input handler too */
695 if (request_head(&assoc->incoming))
697 logf (LOG_DEBUG, "more work to be done");
698 iochan_setevent(assoc->client_chan, EVENT_WORK);
705 * Handle init request.
706 * At the moment, we don't check the options
707 * anywhere else in the code - we just try not to do anything that would
708 * break a naive client. We'll toss 'em into the association block when
709 * we need them there.
711 static Z_APDU *process_initRequest(association *assoc, request *reqb)
713 Z_InitRequest *req = reqb->request->u.initRequest;
714 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_initResponse);
715 Z_InitResponse *resp = apdu->u.initResponse;
716 bend_initrequest binitreq;
717 bend_initresult *binitres;
720 logf(LOG_LOG, "Got initRequest");
721 if (req->implementationId)
722 logf(LOG_LOG, "Id: %s", req->implementationId);
723 if (req->implementationName)
724 logf(LOG_LOG, "Name: %s", req->implementationName);
725 if (req->implementationVersion)
726 logf(LOG_LOG, "Version: %s", req->implementationVersion);
728 binitreq.stream = assoc->encode;
729 binitreq.configname = "default-config";
730 binitreq.auth = req->idAuthentication;
731 binitreq.bend_sort = NULL;
732 binitreq.bend_search = NULL;
733 binitreq.bend_present = NULL;
734 binitreq.bend_esrequest = NULL;
735 if (!(binitres = bend_init(&binitreq)))
737 logf(LOG_WARN, "Bad response from backend.");
741 assoc->backend = binitres->handle;
742 if ((assoc->bend_sort = (int (*)())binitreq.bend_sort))
743 logf (LOG_DEBUG, "Sort handler installed");
744 if ((assoc->bend_search = (int (*)())binitreq.bend_search))
745 logf (LOG_DEBUG, "Search handler installed");
746 if ((assoc->bend_present = (int (*)())binitreq.bend_present))
747 logf (LOG_DEBUG, "Present handler installed");
748 if ((assoc->bend_esrequest = (int (*)())binitreq.bend_esrequest))
749 logf (LOG_DEBUG, "ESRequest handler installed");
751 resp->referenceId = req->referenceId;
753 /* let's tell the client what we can do */
754 if (ODR_MASK_GET(req->options, Z_Options_search))
756 ODR_MASK_SET(resp->options, Z_Options_search);
757 strcat(options, "srch");
759 if (ODR_MASK_GET(req->options, Z_Options_present))
761 ODR_MASK_SET(resp->options, Z_Options_present);
762 strcat(options, " prst");
764 if (ODR_MASK_GET(req->options, Z_Options_delSet))
766 ODR_MASK_SET(resp->options, Z_Options_delSet);
767 strcat(options, " del");
769 if (ODR_MASK_GET(req->options, Z_Options_extendedServices) &&
770 binitreq.bend_esrequest)
772 ODR_MASK_SET(resp->options, Z_Options_extendedServices);
773 strcat (options, " extendedServices");
775 if (ODR_MASK_GET(req->options, Z_Options_namedResultSets))
777 ODR_MASK_SET(resp->options, Z_Options_namedResultSets);
778 strcat(options, " namedresults");
780 if (ODR_MASK_GET(req->options, Z_Options_scan))
782 ODR_MASK_SET(resp->options, Z_Options_scan);
783 strcat(options, " scan");
785 if (ODR_MASK_GET(req->options, Z_Options_concurrentOperations))
787 ODR_MASK_SET(resp->options, Z_Options_concurrentOperations);
788 strcat(options, " concurop");
790 if (ODR_MASK_GET(req->options, Z_Options_sort && binitreq.bend_sort))
792 ODR_MASK_SET(resp->options, Z_Options_sort);
793 strcat(options, " sort");
795 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
797 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
798 assoc->version = 2; /* 1 & 2 are equivalent */
800 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
802 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
805 if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
807 ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
810 logf(LOG_LOG, "Negotiated to v%d: %s", assoc->version, options);
811 assoc->maximumRecordSize = *req->maximumRecordSize;
812 if (assoc->maximumRecordSize > control_block->maxrecordsize)
813 assoc->maximumRecordSize = control_block->maxrecordsize;
814 assoc->preferredMessageSize = *req->preferredMessageSize;
815 if (assoc->preferredMessageSize > assoc->maximumRecordSize)
816 assoc->preferredMessageSize = assoc->maximumRecordSize;
817 resp->preferredMessageSize = &assoc->preferredMessageSize;
818 resp->maximumRecordSize = &assoc->maximumRecordSize;
819 resp->implementationName = "Index Data/YAZ Generic Frontend Server";
820 if (binitres->errcode)
822 logf(LOG_LOG, "Connection rejected by backend.");
824 assoc->state = ASSOC_DEAD;
827 assoc->state = ASSOC_UP;
832 * These functions should be merged.
835 static void set_addinfo (Z_DefaultDiagFormat *dr, char *addinfo)
838 dr->which = Z_DefaultDiagFormat_v2Addinfo;
839 dr->u.v2Addinfo = addinfo ? addinfo : "";
841 dr->which = Z_DiagForm_v2AddInfo;
842 dr->addinfo = addinfo ? addinfo : "";
847 * nonsurrogate diagnostic record.
849 static Z_Records *diagrec(association *assoc, int error, char *addinfo)
852 Z_Records *rec = (Z_Records *)odr_malloc (assoc->encode, sizeof(*rec));
854 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
855 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
856 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
858 bib1.proto = assoc->proto;
859 bib1.oclass = CLASS_DIAGSET;
860 bib1.value = VAL_BIB1;
862 logf(LOG_DEBUG, "Diagnostic: %d -- %s", error, addinfo ? addinfo :
865 rec->which = Z_Records_NSD;
867 rec->u.nonSurrogateDiagnostic = dr;
870 rec->u.nonSurrogateDiagnostic = drec;
871 drec->which = Z_DiagRec_defaultFormat;
872 drec->u.defaultFormat = dr;
874 rec->u.nonSurrogateDiagnostic = dr;
877 dr->diagnosticSetId = odr_oiddup (assoc->encode,
878 oid_ent_to_oid(&bib1, oid));
880 set_addinfo (dr, addinfo);
885 * surrogate diagnostic.
887 static Z_NamePlusRecord *surrogatediagrec(association *assoc, char *dbname,
888 int error, char *addinfo)
891 Z_NamePlusRecord *rec = (Z_NamePlusRecord *)odr_malloc (assoc->encode, sizeof(*rec));
892 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
894 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
895 Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*dr));
897 bib1.proto = assoc->proto;
898 bib1.oclass = CLASS_DIAGSET;
899 bib1.value = VAL_BIB1;
901 logf(LOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
903 rec->databaseName = dbname;
904 rec->which = Z_NamePlusRecord_surrogateDiagnostic;
905 rec->u.surrogateDiagnostic = drec;
906 drec->which = Z_DiagRec_defaultFormat;
907 drec->u.defaultFormat = dr;
908 dr->diagnosticSetId = odr_oiddup (assoc->encode,
909 oid_ent_to_oid(&bib1, oid));
911 set_addinfo (dr, addinfo);
917 * multiple nonsurrogate diagnostics.
919 static Z_DiagRecs *diagrecs(association *assoc, int error, char *addinfo)
922 Z_DiagRecs *recs = (Z_DiagRecs *)odr_malloc (assoc->encode, sizeof(*recs));
923 int *err = (int *)odr_malloc (assoc->encode, sizeof(*err));
925 Z_DiagRec **recp = (Z_DiagRec **)odr_malloc (assoc->encode, sizeof(*recp));
926 Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (assoc->encode, sizeof(*drec));
927 Z_DefaultDiagFormat *rec = (Z_DefaultDiagFormat *)odr_malloc (assoc->encode, sizeof(*rec));
929 logf(LOG_DEBUG, "DiagRecs: %d -- %s", error, addinfo);
930 bib1.proto = assoc->proto;
931 bib1.oclass = CLASS_DIAGSET;
932 bib1.value = VAL_BIB1;
935 recs->num_diagRecs = 1;
936 recs->diagRecs = recp;
938 drec->which = Z_DiagRec_defaultFormat;
939 drec->u.defaultFormat = rec;
941 rec->diagnosticSetId = odr_oiddup (assoc->encode,
942 oid_ent_to_oid(&bib1, oid));
943 rec->condition = err;
946 rec->which = Z_DefaultDiagFormat_v2Addinfo;
947 rec->u.v2Addinfo = addinfo ? addinfo : "";
949 rec->which = Z_DiagForm_v2AddInfo;
950 rec->addinfo = addinfo ? addinfo : "";
955 static Z_Records *pack_records(association *a, char *setname, int start,
956 int *num, Z_RecordComposition *comp,
957 int *next, int *pres, oid_value format)
960 int recno, total_length = 0, toget = *num, dumped_records = 0;
961 Z_Records *records = (Z_Records *)odr_malloc (a->encode, sizeof(*records));
962 Z_NamePlusRecordList *reclist = (Z_NamePlusRecordList *)odr_malloc (a->encode, sizeof(*reclist));
963 Z_NamePlusRecord **list = (Z_NamePlusRecord **)odr_malloc (a->encode, sizeof(*list) * toget);
966 records->which = Z_Records_DBOSD;
967 records->u.databaseOrSurDiagnostics = reclist;
968 reclist->num_records = 0;
969 reclist->records = list;
970 *pres = Z_PRES_SUCCESS;
974 logf(LOG_DEBUG, "Request to pack %d+%d", start, toget);
975 logf(LOG_DEBUG, "pms=%d, mrs=%d", a->preferredMessageSize,
976 a->maximumRecordSize);
977 for (recno = start; reclist->num_records < toget; recno++)
979 bend_fetchrequest freq;
980 bend_fetchresult *fres;
981 Z_NamePlusRecord *thisrec;
982 Z_DatabaseRecord *thisext;
986 * we get the number of bytes allocated on the stream before any
987 * allocation done by the backend - this should give us a reasonable
988 * idea of the total size of the data so far.
990 total_length = odr_total(a->encode) - dumped_records;
991 freq.setname = setname;
994 freq.format = format;
995 freq.stream = a->encode;
996 if (!(fres = bend_fetch(a->backend, &freq, 0)))
998 *pres = Z_PRES_FAILURE;
999 return diagrec(a, 2, "Backend interface problem");
1001 /* backend should be able to signal whether error is system-wide
1002 or only pertaining to current record */
1005 *pres = Z_PRES_FAILURE;
1006 return diagrec(a, fres->errcode, fres->errstring);
1009 this_length = fres->len;
1011 this_length = odr_total(a->encode) - total_length;
1012 logf(LOG_DEBUG, " fetched record, len=%d, total=%d",
1013 this_length, total_length);
1014 if (this_length + total_length > a->preferredMessageSize)
1016 /* record is small enough, really */
1017 if (this_length <= a->preferredMessageSize)
1019 logf(LOG_DEBUG, " Dropped last normal-sized record");
1020 *pres = Z_PRES_PARTIAL_2;
1023 /* record can only be fetched by itself */
1024 if (this_length < a->maximumRecordSize)
1026 logf(LOG_DEBUG, " Record > prefmsgsz");
1029 logf(LOG_DEBUG, " Dropped it");
1030 reclist->records[reclist->num_records] =
1031 surrogatediagrec(a, fres->basename, 16, 0);
1032 reclist->num_records++;
1033 *next = fres->last_in_set ? 0 : recno + 1;
1034 dumped_records += this_length;
1038 else /* too big entirely */
1040 logf(LOG_DEBUG, "Record > maxrcdsz");
1041 reclist->records[reclist->num_records] =
1042 surrogatediagrec(a, fres->basename, 17, 0);
1043 reclist->num_records++;
1044 *next = fres->last_in_set ? 0 : recno + 1;
1045 dumped_records += this_length;
1049 if (!(thisrec = (Z_NamePlusRecord *)odr_malloc(a->encode, sizeof(*thisrec))))
1051 if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
1052 strlen(fres->basename) + 1)))
1054 strcpy(thisrec->databaseName, fres->basename);
1055 thisrec->which = Z_NamePlusRecord_databaseRecord;
1056 if (!(thisrec->u.databaseRecord = thisext = (Z_External *)odr_malloc(a->encode,
1057 sizeof(Z_DatabaseRecord))))
1059 recform.proto = a->proto;
1060 recform.oclass = CLASS_RECSYN;
1061 recform.value = fres->format;
1062 thisext->direct_reference = odr_oiddup(a->encode,
1063 oid_ent_to_oid(&recform, oid));
1064 thisext->indirect_reference = 0;
1065 thisext->descriptor = 0;
1066 if (fres->len < 0) /* Structured data */
1068 switch (fres->format)
1070 case VAL_SUTRS: thisext->which = Z_External_sutrs; break;
1071 case VAL_GRS1: thisext->which = Z_External_grs1; break;
1072 case VAL_EXPLAIN: thisext->which = Z_External_explainRecord;
1074 case VAL_SUMMARY: thisext->which = Z_External_summary; break;
1075 case VAL_OPAC: thisext->which = Z_External_OPAC; break;
1078 logf(LOG_FATAL, "Unknown structured format from backend.");
1083 * We cheat on the pointers here. Obviously, the record field
1084 * of the backend-fetch structure should have been a union for
1085 * correctness, but we're stuck with this for backwards
1088 thisext->u.grs1 = (Z_GenericRecord*) fres->record;
1090 else if (fres->format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
1093 Z_SUTRS *sutrs = (Z_SUTRS *)odr_malloc(a->encode, 1+fres->len);
1095 memcpy(sutrs, fres->record, fres->len);
1096 sutrs[fres->len] = '\0';
1098 Odr_oct *sutrs = (Odr_oct *)odr_malloc(a->encode, sizeof(*sutrs));
1100 thisext->which = Z_External_sutrs;
1101 thisext->u.sutrs = sutrs;
1102 sutrs->buf = (unsigned char *)odr_malloc(a->encode, fres->len);
1103 sutrs->len = sutrs->size = fres->len;
1104 memcpy(sutrs->buf, fres->record, fres->len);
1107 else /* octet-aligned record. */
1109 thisext->which = Z_External_octet;
1110 if (!(thisext->u.octet_aligned = (Odr_oct *)odr_malloc(a->encode,
1113 if (!(thisext->u.octet_aligned->buf = (unsigned char *)odr_malloc(a->encode,
1116 memcpy(thisext->u.octet_aligned->buf, fres->record, fres->len);
1117 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size =
1120 reclist->records[reclist->num_records] = thisrec;
1121 reclist->num_records++;
1122 *next = fres->last_in_set ? 0 : recno + 1;
1124 *num = reclist->num_records;
1128 static Z_APDU *process_searchRequest(association *assoc, request *reqb,
1131 Z_SearchRequest *req = reqb->request->u.searchRequest;
1132 bend_search_rr *bsrr = (bend_search_rr *)nmem_malloc (reqb->request_mem, sizeof(*bsrr));
1134 logf(LOG_LOG, "Got SearchRequest.");
1135 save_referenceId (reqb, req->referenceId);
1136 /* store ref id in request */
1138 bsrr->request = reqb;
1139 bsrr->association = assoc;
1140 if (assoc->bend_search)
1142 bsrr->setname = req->resultSetName;
1143 bsrr->replace_set = *req->replaceIndicator;
1144 bsrr->num_bases = req->num_databaseNames;
1145 bsrr->basenames = req->databaseNames;
1146 bsrr->query = req->query;
1147 bsrr->stream = assoc->encode;
1150 bsrr->errstring = NULL;
1151 ((int (*)(void *, bend_search_rr *))(assoc->bend_search))(assoc->backend, bsrr);
1157 bend_searchrequest bsrq;
1158 bend_searchresult *bsrt;
1160 bsrq.setname = req->resultSetName;
1161 bsrq.replace_set = *req->replaceIndicator;
1162 bsrq.num_bases = req->num_databaseNames;
1163 bsrq.basenames = req->databaseNames;
1164 bsrq.query = req->query;
1165 bsrq.stream = assoc->encode;
1166 if (!(bsrt = bend_search(assoc->backend, &bsrq, fd)))
1168 bsrr->hits = bsrt->hits;
1169 bsrr->errcode = bsrt->errcode;
1170 bsrr->errstring = bsrt->errstring;
1172 return response_searchRequest(assoc, reqb, bsrr, fd);
1175 int bend_searchresponse(void *handle, bend_search_rr *bsrr) {return 0;}
1178 * Prepare a searchresponse based on the backend results. We probably want
1179 * to look at making the fetching of records nonblocking as well, but
1180 * so far, we'll keep things simple.
1181 * If bsrt is null, that means we're called in response to a communications
1182 * event, and we'll have to get the response for ourselves.
1184 static Z_APDU *response_searchRequest(association *assoc, request *reqb,
1185 bend_search_rr *bsrt, int *fd)
1187 Z_SearchRequest *req = reqb->request->u.searchRequest;
1188 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1189 Z_SearchResponse *resp = (Z_SearchResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1190 int *nulint = (int *)odr_malloc (assoc->encode, sizeof(*nulint));
1191 bool_t *sr = (bool_t *)odr_malloc (assoc->encode, sizeof(*sr));
1192 int *next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1193 int *none = (int *)odr_malloc (assoc->encode, sizeof(*none));
1200 apdu->which = Z_APDU_searchResponse;
1201 apdu->u.searchResponse = resp;
1202 resp->referenceId = req->referenceId;
1203 resp->additionalSearchInfo = 0;
1204 resp->otherInfo = 0;
1206 if (!bsrt && !bend_searchresponse(assoc->backend, bsrt))
1208 logf(LOG_FATAL, "Bad result from backend");
1211 else if (bsrt->errcode)
1213 resp->records = diagrec(assoc, bsrt->errcode, bsrt->errstring);
1214 resp->resultCount = nulint;
1215 resp->numberOfRecordsReturned = nulint;
1216 resp->nextResultSetPosition = nulint;
1217 resp->searchStatus = nulint;
1218 resp->resultSetStatus = none;
1219 resp->presentStatus = 0;
1223 int *toget = (int *)odr_malloc (assoc->encode, sizeof(*toget));
1224 int *presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1225 Z_RecordComposition comp, *compp = 0;
1230 resp->resultCount = &bsrt->hits;
1232 comp.which = Z_RecordComp_simple;
1233 /* how many records does the user agent want, then? */
1234 if (bsrt->hits <= *req->smallSetUpperBound)
1236 *toget = bsrt->hits;
1237 if ((comp.u.simple = req->smallSetElementSetNames))
1240 else if (bsrt->hits < *req->largeSetLowerBound)
1242 *toget = *req->mediumSetPresentNumber;
1243 if (*toget > bsrt->hits)
1244 *toget = bsrt->hits;
1245 if ((comp.u.simple = req->mediumSetElementSetNames))
1251 if (*toget && !resp->records)
1256 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1257 prefformat->oclass != CLASS_RECSYN)
1260 form = prefformat->value;
1261 resp->records = pack_records(assoc, req->resultSetName, 1,
1262 toget, compp, next, presst, form);
1265 resp->numberOfRecordsReturned = toget;
1266 resp->nextResultSetPosition = next;
1267 resp->searchStatus = sr;
1268 resp->resultSetStatus = 0;
1269 resp->presentStatus = presst;
1273 if (*resp->resultCount)
1275 resp->numberOfRecordsReturned = nulint;
1276 resp->nextResultSetPosition = next;
1277 resp->searchStatus = sr;
1278 resp->resultSetStatus = 0;
1279 resp->presentStatus = 0;
1286 * Maybe we got a little over-friendly when we designed bend_fetch to
1287 * get only one record at a time. Some backends can optimise multiple-record
1288 * fetches, and at any rate, there is some overhead involved in
1289 * all that selecting and hopping around. Problem is, of course, that the
1290 * frontend can't know ahead of time how many records it'll need to
1291 * fill the negotiated PDU size. Annoying. Segmentation or not, Z/SR
1292 * is downright lousy as a bulk data transfer protocol.
1294 * To start with, we'll do the fetching of records from the backend
1295 * in one operation: To save some trips in and out of the event-handler,
1296 * and to simplify the interface to pack_records. At any rate, asynch
1297 * operation is more fun in operations that have an unpredictable execution
1298 * speed - which is normally more true for search than for present.
1300 static Z_APDU *process_presentRequest(association *assoc, request *reqb,
1303 Z_PresentRequest *req = reqb->request->u.presentRequest;
1307 Z_PresentResponse *resp;
1312 logf(LOG_LOG, "Got PresentRequest.");
1314 if (!(prefformat = oid_getentbyoid(req->preferredRecordSyntax)) ||
1315 prefformat->oclass != CLASS_RECSYN)
1318 form = prefformat->value;
1319 if (assoc->bend_present)
1321 bend_present_rr *bprr = (bend_present_rr *)nmem_malloc (reqb->request_mem, sizeof(*bprr));
1322 bprr->setname = req->resultSetId;
1323 bprr->start = *req->resultSetStartPoint;
1324 bprr->number = *req->numberOfRecordsRequested;
1325 bprr->format = form;
1326 bprr->comp = req->recordComposition;
1327 bprr->stream = assoc->encode;
1328 bprr->request = reqb;
1329 bprr->association = assoc;
1331 bprr->errstring = NULL;
1332 ((int (*)(void *, bend_present_rr *))(*assoc->bend_present))(assoc->backend, bprr);
1337 apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1338 resp = (Z_PresentResponse *)odr_malloc (assoc->encode, sizeof(*resp));
1339 presst = (int *)odr_malloc (assoc->encode, sizeof(*presst));
1340 next = (int *)odr_malloc (assoc->encode, sizeof(*next));
1341 num = (int *)odr_malloc (assoc->encode, sizeof(*num));
1344 *num = *req->numberOfRecordsRequested;
1346 apdu->which = Z_APDU_presentResponse;
1347 apdu->u.presentResponse = resp;
1348 resp->referenceId = req->referenceId;
1349 resp->otherInfo = 0;
1352 pack_records(assoc, req->resultSetId, *req->resultSetStartPoint,
1353 num, req->recordComposition, next, presst, form);
1356 resp->numberOfRecordsReturned = num;
1357 resp->presentStatus = presst;
1358 resp->nextResultSetPosition = next;
1364 * Scan was implemented rather in a hurry, and with support for only the basic
1365 * elements of the service in the backend API. Suggestions are welcome.
1367 static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
1369 Z_ScanRequest *req = reqb->request->u.scanRequest;
1370 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1371 Z_ScanResponse *res = (Z_ScanResponse *)odr_malloc (assoc->encode, sizeof(*res));
1372 int *scanStatus = (int *)odr_malloc (assoc->encode, sizeof(*scanStatus));
1373 int *numberOfEntriesReturned =
1374 (int *)odr_malloc (assoc->encode, sizeof(*numberOfEntriesReturned));
1375 Z_ListEntries *ents = (Z_ListEntries *)odr_malloc (assoc->encode, sizeof(*ents));
1376 Z_DiagRecs *diagrecs_p = NULL;
1378 bend_scanrequest srq;
1379 bend_scanresult *srs;
1382 logf(LOG_LOG, "Got ScanRequest");
1383 *scanStatus = Z_Scan_failure;
1384 *numberOfEntriesReturned = 0;
1386 apdu->which = Z_APDU_scanResponse;
1387 apdu->u.scanResponse = res;
1388 res->referenceId = req->referenceId;
1390 res->scanStatus = scanStatus;
1391 res->numberOfEntriesReturned = numberOfEntriesReturned;
1392 res->positionOfTerm = 0;
1393 res->entries = ents;
1395 ents->num_entries = 0;
1396 ents->entries = NULL;
1397 ents->num_nonsurrogateDiagnostics = 0;
1398 ents->nonsurrogateDiagnostics = NULL;
1400 ents->which = Z_ListEntries_entries;
1402 res->attributeSet = 0;
1405 if (req->attributeSet && (!(attent = oid_getentbyoid(req->attributeSet)) ||
1406 attent->oclass != CLASS_ATTSET
1407 || attent->value != VAL_BIB1))
1408 diagrecs_p = diagrecs(assoc, 121, 0);
1409 else if (req->stepSize && *req->stepSize > 0)
1410 diagrecs_p = diagrecs(assoc, 205, 0);
1413 if (req->termListAndStartPoint->term->which == Z_Term_general)
1414 logf(LOG_DEBUG, " term: '%.*s'",
1415 req->termListAndStartPoint->term->u.general->len,
1416 req->termListAndStartPoint->term->u.general->buf);
1417 srq.num_bases = req->num_databaseNames;
1418 srq.basenames = req->databaseNames;
1419 srq.num_entries = *req->numberOfTermsRequested;
1420 srq.term = req->termListAndStartPoint;
1421 srq.stream = assoc->encode;
1422 if (!(attset = oid_getentbyoid(req->attributeSet)) ||
1423 attset->oclass != CLASS_RECSYN)
1424 srq.attributeset = VAL_NONE;
1426 srq.attributeset = attset->value;
1427 srq.term_position = req->preferredPositionInResponse ?
1428 *req->preferredPositionInResponse : 1;
1429 if (!(srs = bend_scan(assoc->backend, &srq, 0)))
1430 diagrecs_p = diagrecs(assoc, 2, 0);
1431 else if (srs->errcode)
1432 diagrecs_p = diagrecs(assoc, srs->errcode, srs->errstring);
1438 Z_Entries *list = (Z_Entries *)
1439 odr_malloc (assoc->encode, sizeof(*list));
1441 Z_Entry **tab = (Z_Entry **)
1442 odr_malloc (assoc->encode, sizeof(*tab) * srs->num_entries);
1444 if (srs->status == BEND_SCAN_PARTIAL)
1445 *scanStatus = Z_Scan_partial_5;
1447 *scanStatus = Z_Scan_success;
1449 ents->entries = tab;
1450 ents->num_entries = srs->num_entries;
1451 res->numberOfEntriesReturned = &ents->num_entries;
1453 ents->u.entries = list;
1454 list->entries = tab;
1455 list->num_entries = srs->num_entries;
1456 res->numberOfEntriesReturned = &list->num_entries;
1458 res->positionOfTerm = &srs->term_position;
1459 for (i = 0; i < srs->num_entries; i++)
1465 tab[i] = e = (Z_Entry *)odr_malloc(assoc->encode, sizeof(*e));
1466 e->which = Z_Entry_termInfo;
1467 e->u.termInfo = t = (Z_TermInfo *)odr_malloc(assoc->encode, sizeof(*t));
1468 t->suggestedAttributes = 0;
1470 t->alternativeTerm = 0;
1471 t->byAttributes = 0;
1472 t->otherTermInfo = 0;
1473 t->globalOccurrences = &srs->entries[i].occurrences;
1474 t->term = (Z_Term *)odr_malloc(assoc->encode, sizeof(*t->term));
1475 t->term->which = Z_Term_general;
1476 t->term->u.general = o = (Odr_oct *)odr_malloc(assoc->encode,
1478 o->buf = (unsigned char *)odr_malloc(assoc->encode, o->len = o->size =
1479 strlen(srs->entries[i].term));
1480 memcpy(o->buf, srs->entries[i].term, o->len);
1481 logf(LOG_DEBUG, " term #%d: '%s' (%d)", i,
1482 srs->entries[i].term, srs->entries[i].occurrences);
1489 ents->num_nonsurrogateDiagnostics = diagrecs_p->num_diagRecs;
1490 ents->nonsurrogateDiagnostics = diagrecs_p->diagRecs;
1492 ents->u.nonSurrogateDiagnostics = diagrecs_p;
1493 ents->which = Z_ListEntries_nonSurrogateDiagnostics;
1499 static Z_APDU *process_sortRequest(association *assoc, request *reqb,
1502 Z_SortRequest *req = reqb->request->u.sortRequest;
1503 Z_SortResponse *res = (Z_SortResponse *)odr_malloc (assoc->encode, sizeof(*res));
1504 bend_sort_rr *bsrr = (bend_sort_rr *)odr_malloc (assoc->encode, sizeof(*bsrr));
1506 Z_APDU *apdu = (Z_APDU *)odr_malloc (assoc->encode, sizeof(*apdu));
1508 logf(LOG_LOG, "Got SortRequest.");
1511 bsrr->num_input_setnames = req->num_inputResultSetNames;
1512 bsrr->input_setnames = req->inputResultSetNames;
1514 bsrr->num_input_setnames = req->inputResultSetNames->num_strings;
1515 bsrr->input_setnames = req->inputResultSetNames->strings;
1517 bsrr->output_setname = req->sortedResultSetName;
1518 bsrr->sort_sequence = req->sortSequence;
1519 bsrr->stream = assoc->encode;
1521 bsrr->sort_status = Z_SortStatus_failure;
1523 bsrr->errstring = 0;
1525 ((int (*)(void *, bend_sort_rr *))(*assoc->bend_sort))(assoc->backend, bsrr);
1527 res->referenceId = req->referenceId;
1528 res->sortStatus = (int *)odr_malloc (assoc->encode, sizeof(*res->sortStatus));
1529 *res->sortStatus = bsrr->sort_status;
1530 res->resultSetStatus = 0;
1533 Z_DiagRecs *dr = diagrecs (assoc, bsrr->errcode, bsrr->errstring);
1535 res->diagnostics = dr->diagRecs;
1536 res->num_diagnostics = dr->num_diagRecs;
1538 res->diagnostics = dr;
1544 res->num_diagnostics = 0;
1546 res->diagnostics = 0;
1550 apdu->which = Z_APDU_sortResponse;
1551 apdu->u.sortResponse = res;
1555 static void process_close(association *assoc, request *reqb)
1557 Z_Close *req = reqb->request->u.close;
1558 static char *reasons[] =
1565 "securityViolation",
1572 logf(LOG_LOG, "Got Close, reason %s, message %s",
1573 reasons[*req->closeReason], req->diagnosticInformation ?
1574 req->diagnosticInformation : "NULL");
1575 if (assoc->version < 3) /* to make do_force respond with close */
1577 do_close(assoc, Z_Close_finished, "Association terminated by client");
1580 void save_referenceId (request *reqb, Z_ReferenceId *refid)
1584 reqb->len_refid = refid->len;
1585 reqb->refid = (char *)nmem_malloc (reqb->request_mem, refid->len);
1586 memcpy (reqb->refid, refid->buf, refid->len);
1590 reqb->len_refid = 0;
1595 void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
1597 process_response (a, req, res);
1600 bend_request bend_request_mk (bend_association a)
1602 request *nreq = request_get (&a->outgoing);
1603 nreq->request_mem = nmem_create ();
1607 Z_ReferenceId *bend_request_getid (ODR odr, bend_request req)
1612 id = (Odr_oct *)odr_malloc (odr, sizeof(*odr));
1613 id->buf = (unsigned char *)odr_malloc (odr, req->len_refid);
1614 id->len = id->size = req->len_refid;
1615 memcpy (id->buf, req->refid, req->len_refid);
1619 void bend_request_destroy (bend_request *req)
1621 nmem_destroy((*req)->request_mem);
1622 request_release(*req);
1626 int bend_backend_respond (bend_association a, bend_request req)
1628 return process_request (a, req);
1631 void bend_request_setdata(bend_request r, void *p)
1636 void *bend_request_getdata(bend_request r)
1638 return r->clientData;
1641 /* Chas: Added in from DALI */
1642 static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
1644 bend_esrequest_rr esrequest;
1646 Z_ExtendedServicesRequest *req = reqb->request->u.extendedServicesRequest;
1647 Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
1649 Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
1651 logf(LOG_DEBUG,"inside Process esRequest");
1653 esrequest.esr = reqb->request->u.extendedServicesRequest;
1654 esrequest.stream = assoc->encode;
1655 esrequest.errcode = 0;
1656 esrequest.errstring = NULL;
1657 esrequest.request = reqb;
1658 esrequest.association = assoc;
1660 (*assoc->bend_esrequest)(assoc->backend, &esrequest, fd);
1662 /* If the response is being delayed, return NULL */
1663 if (esrequest.request == NULL)
1666 resp->referenceId = req->referenceId;
1668 if ( esrequest.errcode == 0 )
1670 /* Backend service indicates request will be processed */
1671 logf(LOG_DEBUG,"Request will be processed...Good !");
1672 *resp->operationStatus = Z_ExtendedServicesResponse_done;
1676 /* Backend indicates error, request will not be processed */
1677 logf(LOG_DEBUG,"Request will not be processed...BAD !");
1678 *resp->operationStatus = Z_ExtendedServicesResponse_failure;
1680 /* Do something with the members of bend_extendedservice */
1682 logf(LOG_DEBUG,"Send the result apdu");
1687 /* Chas: End of addition from DALI */